Hi, I am Consolacion Y. Ragasa, My LiveDNA is 63.5996
 
   
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Dr. Consolacion Y. Ragasa
 
Highest Degree: Ph.D. in Chemistry from University of the Philippines, Philippines
 
Institute: De La Salle University, Philippines
 
Area of Interest: Biomedical Sciences
  •   Natural Compounds
  •   Phytochemistry
  •   Pharmaceutical Chemistry
  •   Natural Medicine
 
URL: http://livedna.org/63.5996
 
My SELECTED Publications
1:   Alea, G.V. and C.Y. Ragasa, 2000. Diterpenes from the soft coral Clavularia inflate (Coelenterata, Octocorallia, Stolonifera). Manila J. Sci., 3: 25-33.
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2:   Alimboyoguen, A.B., C.Y. Ragasa, P. Roque and A. Ng, 2004. Sterols and carotenoid from Brugmansia suaveolens. CvSU Res. J., 18: 36-37.
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3:   Alimboyoguen, A.B., K. de Castro-Cruz, C.C. Shen and C.Y. Ragasa, 2014. Chemical constituents of Anacolosa frutescens. Res. J. Pharm. Biol. Chem. Sci., 5: 1189-1191.
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4:   Alimboyoguen, A.B., K.A. de Castro-Cruz, C.C. Shen, W.T. Li and C.Y. Ragasa, 2014. Chemical constituents of the bark of Aleurites moluccana L. willd. J. Chem. Pharm. Res., 6: 1318-1320.
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5:   Barre, J.T., B.F. Bowden, J.C. Coll, J. de Jesus, V.E. de La Fuente, G.C. Janairo and C.Y. Ragasa, 1997. A bioactive triterpene from Lantana camara. Phytochemistry, 45: 321-324.
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6:   Biona, K., C.C. Shen and C.Y. Ragasa, 2015. Chemical constituents of Talinum triangulare. Res. J. Pharm. Biol. Chem. Sci., 6: 167-171.
7:   Cayme, J.M.C. and C.Y. Ragasa, 2004. Structure elucidation of β-stigmasterol and β-sitosterol from Sesbania grandiflora Linn. Pers. and β-Carotene from Heliotropium indicum Linn. by NMR Spectroscopy. Kimika, 20: 5-12.
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8:   Del Fierro, R.S., Q.M.A. Maquilang, R.A.S. Sanjorjo, M.D. Tradio, C.C. Shen and C.Y. Ragasa, 2012. Secondary metabolites from Cinnamomum cebuense. J. Medi. Plants Res., 6: 2146-2149.
9:   Ebajo, Jr. V., C.C. Shen and C.Y. Ragasa, 2015. Terpenoids and sterols from Hoya multiflora blume. J. Applied Pharm. Sci., Vol. 5. .
10:   Ebajo, Jr. V.D., C.C. Shen and C.Y. Ragasa, 2014. Triterpenes and sterol from Hoya mindorensis. Der Pharma Chemica, 6: 321-325.
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11:   Espineli, D.L., E.M. Agoo, C.C. Shen and C.Y. Ragasa, 2013. Chemical constituents of Cinnamomum utile. Chem. Nat. Comp., 49: 769-770.
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12:   Espineli, D.L., E.M.G. Agoo, C.C. Shen and C.Y. Ragasa, 2013. Chemical constituents of Cinnamomum iners. Chem. Nat. Compounds, 49: 932-933.
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13:   Espineli, D.L., E.M.G. Agoo, C.C. Shen and C.Y. Ragasa, 2014. Chemical constituents of Cinnamomum trichophyllum. Chem. Nat. Compounds, 50: 389-390.
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14:   Espineli, D.L., E.M.G. Agoo, R.S. del Fierro, C.C. Shen and C.Y. Ragasa, 2014. Cytotoxic and antimicrobial compounds from Cinnamomum cebuense Kosterm.(Lauraceae). Pharm. Chem. J., 48: 598-602.
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15:   Hofilena, J.G. and C.Y. Ragasa, 2002. A monoteroene from Pterocarpus indicus (Leguminosae). Kimika, 18: 5-8.
16:   Hofilena, J.G., C.Y. Ragasa and J.A. Rideout, 2000. An antimicrobial and antimutagenic anthraquinone from Cassia alata. ACGC Chem. Res. Commun., 10: 15-20.
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17:   Inte, V.M., C.Y. Ragasa and J.A. Rideout, 1998. Triterpenes, hydrocarbons and an antimutagenic alkaloids from Catharanthus roseus. Asia Life Sci., 7: 11-21.
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18:   Jacinto, S.D., E.A.C. Chun, A.S. Montuno, C.C. Shen, D.L. Espineli and C.Y. Ragasa, 2011. Cytotoxic cardenolide and sterols from Calotropis gigantean. Nat. Prod. Commun., 6: 803-806.
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19:   Janairo, J.R.O., G.C. Janairo, C.Y. Ragasa and B.F. Bowden, 2007. New xenicanes from Xenia viridis. Nat. Prod. Res., 21: 1067-1072.
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20:   Janairo, J.R.O., G.C. Janairo, C.Y. Ragasa, 2007. A new fatty acid ester of a dolabellane diterpene from Clavularia sp. J. Res. Sci. Comput. Eng., 4: 51-59.
21:   Janairo, J.R.O., G.C. Janairo, C.Y., Ragasa and B.F. Bowden, 2008. A marine verticillane diterpenoid from Cespitularia erecta. Nat. Prod. Res., 22: 48-52.
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22:   Juan, E.A., J.A. Rideout and C.Y. Ragasa, 1997. Bioactive furanocoumarin derivatives from Ficus pumila. Philippine J. Sci., 126: 143-153.
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23:   Largo, G., C.Y. Ragasa , J.C. Coll and J.A. Rideout, 1996. A bioactive chromene from Eupatorium toppingianum. Kimika, 12: 11-14.
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24:   Largo, G., J.A. Rideout and C.Y. Ragasa, 1997. A bioactive carotenoid from Mimosa invisa. Philippine J. Sci., 126: 107-114.
25:   Maliwat, L., C.Y. Ragasa and M. Tada, 1997. Alkaloid and saponin from Argemone mexicana. Kimika, 13: 7-9.
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26:   Nacpil, Z.D., C.Y. Ragasa, J.A. Rideout and J.C. Coll, 1997. Antimutagenic diterpenes from Andrographis paniculata. Kimika, 13: 11-16.
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27:   Padla, E.P., L.T. Solis and C.Y. Ragasa, 2012. Antibacterial and antifungal properties of ent-kaurenoic acid from Smallanthus sonchifolius. Chinese J. Nat. Med., 10: 408-414.
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28:   Padla, E.P., L.T. Solis, C.C. Shen, R.M. Levida and C.Y. Ragasa, 2012. Antimicrobial isothiocyanates from Moringa oleifera Lam. Zeitschrift fur Naturforschung C., 67c: 557-564.
29:   Raga, D.D., A. Herrera, C.C. Shen and C.Y. Ragasa, 2013. Triterpenes from Ardisia cf. elliptica (subgenus Tinus) limit vascular density and promote von Willebrand factor expression on duck chorioallantoic membrane. Pharm. Chem. J., 47: 44-49.
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30:   Raga, D.D., A.A. Herrera and C.Y. Ragasa, 2013. Angio-suppressive triterpenoids from Ardisia cf. elliptica (subgenus Tinus) on duck (Anas platyrynchos L.) chorioallantoic membrane. Chinese J. Nat. Med., 11: 128-138.
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31:   Raga, D.D., A.A. Herrera, A.B. Alimboyoguen, C.C. Shen and C.Y. Ragasa, 2014. Effects of triterpenes from Ardisia cf. elliptica (subgenus Tinus) and sterols from Ardisia pyramidalis Cav Pers on Artemia salina and Danio rerio toxicity and caudal fin regeneration. J. Chem. Pharm. Res., 6: 1014-1022.
32:   Raga, D.D., A.A. Herrera, D. Espineli, C.C. Shen and C.Y. Ragasa, 2013. Triterpenes from Ardisia squamulosa C. Presl (Myrsinaceae) limit angiogenesis and the expression of von willebrand factor in duck chorioallantoic membrane. J. Chem. Pharm. Res., 5: 230-239.
33:   Raga, D.D., A.B. Alimboyoguen, C.C. Shen and C.Y. Ragasa, 2011. Triterpenoids and an anti-angiogenic sterol from Ardisia pyramidalis Cav. Pers. Philippine Agric. Sci., 94: 103-110.
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34:   Raga, D.D., A.B. Alimboyoguen, R.S. del Fierro and C.Y. Ragasa, 2010. Hypoglycemic effects of tea extracts and ent-kaurenoic acid from Smallanthus sonchifolius. Nat. Prod. Res., 24: 1771-1782.
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35:   Raga, D.D., C.L. Cheng, K.C. Lee, W.Z. Olaziman and V.J. De Guzman et al., 2011. Bioactivities of triterpenes and a sterol from Syzygium samarangense. Zeitschrift Fur Naturforschung C, 66: 235-244.
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36:   Raga, D.D., M.L.S. Diezmos, A.C.C. Orantia, M.J.A. Lo and J.C.P. Evangelista et al., 2014. Analgesic triterpenes from Ardisia cf. Elliptica (Subgenus: Tinus) (Myrsinaceae). Der Pharma Chemica, 6: 153-161.
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37:   Raga, D.D., R. Espiritu, C.C. Shen and C.Y. Ragasa, 2011. A bioactive sesquiterpene from Bixa orellana. J. Nat. Med., 65: 206-211.
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38:   Ragasa , C.Y., O.B. Torres, D.D. Raga, E.H. Mandia, M.J. Don and C.C. Shen, 2014. New triterpenes from the bark of Canarium asperum. Der Pharmanica Lettre, 6: 290-294.
39:   Ragasa, C Y., E.C. Cabrera, O.B. Torres, A.I. Buluran, D.L. Espineli, D.D. Raga and C.C. Shen, 2015. Chemical constituents and bioactivities of Glinus oppositifolius. Pharmacogn. Res., 7: 138-147.
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40:   Ragasa, C.Y. amd J.G. Hofilena, 2011. Antimicrobial coumarin derivative from Delonix regia. . Manila J. Sci., 7: 7-11.
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41:   Ragasa, C.Y. and A.B. Alimboyoguen, 2013. Long chain 4-hydroxy cinnamate esters from Allamanda neriifolia Hook. Am. J. Essential Oils Nat. Prod., 1: 50-53.
42:   Ragasa, C.Y. and A.B. Alimboyoguen, 2013. Long chain 4-hydroxycinnamate esters from Allamanda neriifolia Hook. Am. J. Essential oils Nat. Prod., 1: 104-107.
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43:   Ragasa, C.Y. and J. de Jesus, 2014. Porphyrins and polyprenols from Macaranga tanarius. Res. J. Pharm. Biol. Chem. Sci., 5: 701-708.
44:   Ragasa, C.Y. and J.A. Rideout, 2001. An antifungal cadinanolide from Pseudoelephantopus spicatus. Chem. Pharmaceutical Bull., 49: 1359-1361.
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45:   Ragasa, C.Y. and K. Lim, 2005. Secondary metabolites from Schefflera odorata Blanco. Philippine J. Sci., 134: 63-67.
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46:   Ragasa, C.Y. and K. Lim, 2005. Sterols from Cucurbita maxima. Philippine J. Sci., 134: 83-87.
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47:   Ragasa, C.Y. and K.B. Cornelio, 2013. Triterpenes from Euphorbia hirta and their cytotoxicity. Chin. J. Nat. Med., 11: 528-533.
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48:   Ragasa, C.Y. and M.C. Cruz, 2005. Antimicrobial diterpenes from Tinospora rumphii. J. Res. Sci. Eng., 2: 30-34.
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49:   Ragasa, C.Y., 1995. Flavanones and triterpenes from Ageratum conyzoides. Agham, 19: 21-25.
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50:   Ragasa, C.Y., A. Poblete and E. Navida, 2001. Antimicrobial compounds from Spondias purpurea. Manila J. Sci., 4: 24-28.
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51:   Ragasa, C.Y., A. de los Santos and J.A. Rideout, 2008. An antimicrobial and cytotoxic labdane diterpene from Andrographis paniculata. Chem. Res. Commun., 22: 44-48.
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52:   Ragasa, C.Y., A.B. Alimboyoguen and C.C. Shen, 2009. Antimicrobial triterpenes from Dillenia philippinensis. Philippine Sci., 46: 78-87.
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53:   Ragasa, C.Y., A.B. Alimboyoguen and C.C. Shen, 2009. Antimicrobial terpenoids from Elephantopus mollis. NRCP Res. J., 10: 33-38.
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54:   Ragasa, C.Y., A.B. Alimboyoguen and C.C. Shen, 2014. Chemical constituents of Ficus nota. Der Pharma Chemica, 6: 98-101.
55:   Ragasa, C.Y., A.B. Alimboyoguen and J.A. Rideout, 2010. An antimicrobial triterpene from Shorea guiso. Kimika, 23: 50-54.
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56:   Ragasa, C.Y., A.B. Alimboyoguen and S. Urban, 2008. Structure elucidation of a diterpene from Smallanthus sonchifoliusi by NMR Spectroscopy. Res. J., 225: 57-59.
57:   Ragasa, C.Y., A.B. Alimboyoguen, R.S. del Fierro, C.C. Shen and D.D. Raga, 2011. Hypoglycemic effects of tea extracts and sterols from Momordica charantia. J. Na. Remed., 11: 44-53.
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58:   Ragasa, C.Y., A.B., Alimboyoguen and J.A. Rideout, 2007. A triterpene from Rosa sp. J. Res. Sci. Comput. Eng., 4: 1-5.
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59:   Ragasa, C.Y., A.I. Buluran, E.H. Mandia and C.C. Shen, 2014. Chemical constituents of Cayratia trifolia. Der Pharma Chemica, 6: 418-422.
60:   Ragasa, C.Y., A.L. Co and J.A. Rideout, 2005. Antifungal metabolites from Blumea balsamifera. Nat. Prod. Res., 19: 231-237.
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61:   Ragasa, C.Y., A.P.U. Chua and C.C. Shen, 2014. Chemical constituents of Schizostachyum lumampao. J. Chem. Pharm. Res., 6: 738-742.
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62:   Ragasa, C.Y., A.P.U. Chua, E.H. Mandia, L.O. Bernardo and C.C. Shen, 2015. Chemical constituents of Cardamine flexuosa. Der Pharma Chemica, 7: 100-105.
63:   Ragasa, C.Y., A.T. Martinez, J.E.Y. Chua and J.A. Rideout, 2007. A triterpene from Musa errans. Philippine J. Sci., 136: 167-171.
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64:   Ragasa, C.Y., B. Tamboong and J.A. Rideout, 2003. Secondary metabolites from Jasminum sambac and Cananga odorata. ACGC Chem. Res. Commun., 16: 40-47.
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65:   Ragasa, C.Y., B.A. Penalosa and J. Rideout, 1998. A bioactive dipeptide derivative from Malachra fasciata. Philippine J. Sci., 127: 267-276.
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66:   Ragasa, C.Y., C.A. Cruz, I.D. Chiong, M. Tada and J.A. Rideout, 1997. Antifungal flavonoids from Waltheria Americana. Philipp. J. Sci., 126: 243-250.
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67:   Ragasa, C.Y., C.J.J. Crisostomo, K.D.C. Garcia and C.C. Shen, 2010. Antimicrobial xanthones from Garcinia mangostana L. Philippine Scie., 47: 63-75.
68:   Ragasa, C.Y., D. Borja, R. Bassig and J.A. Rideout, 2002. Antifungal compounds from Anacardium occidentale. Philippine J. Sci., 131: 9-16.
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69:   Ragasa, C.Y., D. Fortin and C.C. Shen, 2014. Chemical constituents of Arenga tremula. Res. J. Pharm. Biol. Chem. Sci., 5: 1479-1485.
70:   Ragasa, C.Y., D.L. Espineli and C.C. Shen, 2011. New triterpenes from Barringtonia asiatica. Chem. Pharm. Bull., 59: 778-782.
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71:   Ragasa, C.Y., D.L. Espineli and C.C. Shen, 2012. A new triterpene from Barringtonia asiatica. Nat. Prod. Res., 26: 1869-1875.
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72:   Ragasa, C.Y., D.L. Espineli and C.C. Shen, 2014. Cytotoxic triterpene from Barringtonia asiatica. Pharm. Chem. J., 48: 529-533.
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73:   Ragasa, C.Y., D.L. Espineli and J.A. Rideout, 2007. Triterpenes from Emilia sonchifolia. Res. J., 21: 23-26.
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74:   Ragasa, C.Y., D.L. Espineli, D.D. Raga and C.C. Shen, 2014. Chemical constituents of Sphaeranthus africanus. J. Chem. Pharm. Res., 6: 2197-2200.
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75:   Ragasa, C.Y., D.L. Espineli, D.D. Raga, A.A. Herrera and C.C. Shen, 2013. Terpenoids from Ardisia squamulosa. Chem. Nat. Comp., 49: 388-389.
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76:   Ragasa, C.Y., D.L. Espineli, E.H. Mandia, D.D. Raga, M.J. Don and C.C. Shen, 2012. A new triterpene from Atalantia retusa. Zeitschrift fur Naturforschung B, 67b: 426-432.
77:   Ragasa, C.Y., D.L. Espineli, E.H. Mandia, M.J. Don and C.C. Shen, 2012. A new triterpene from Glinus oppositifolius. Chinese J. Nat. Med., 10: 284-286.
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78:   Ragasa, C.Y., D.L. Espineli, E.M. Agoo and C.C. Shen, 2013. Chemical constituents of Cinnamomum rupestre and Cinnamomum nanophyllum. Chem. Nat. Comp., 49: 757-758.
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79:   Ragasa, C.Y., D.L. Espineli, E.M. Agoo and R.S. del Fierro, 2013. Chemical constituents of Cinnamomum cebuense. Chinese J. Nat. Med., 11: 264-268.
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80:   Ragasa, C.Y., D.L. Espineli, E.M.G. Agoo and C.C. Shen, 2013. Chemical constituents of Cinnamomum griffithii. Chem. Nat. Comp., 49: 127-128.
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81:   Ragasa, C.Y., D.R. Fortin and C.C. Shen, 2014. Chemical constituents of Shorea contorta. J. Chem. Pharm. Res., 6: 1243-1246.
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82:   Ragasa, C.Y., E. Morales and J.A. Rideout, 1999. Antimicrobial compounds from Vitex negundo. Philippine J. Sci., 128: 21-29.
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83:   Ragasa, C.Y., E. Morales and J.A. Rideout, 2000. A flavone from Vitex parviflora. Manila J. Sci., 3: 6-9.
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84:   Ragasa, C.Y., E.A. Juan and J.A. Rideout, 1999. A triterpene from Ficus pumila. J. Asian Nat. Product. Res., 1: 269-275.
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85:   Ragasa, C.Y., E.S.C. Javier and I.G. Tan, 2003. Antimutagenic terpenes and sterols from Vitex parviflora. Philippine J. Sci., 132: 21-25.
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86:   Ragasa, C.Y., F. Lim, D.D. Raga and C.C. Shen, 2013. Hypoglycemic potential of triterpenes from Alstonia scholaris. Pharm. Chem. J., 47: 54-57.
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87:   Ragasa, C.Y., F. Tiu and J. Rideout, 2005. Triterpenoids from Chrysanthemum morifolium. ACGC Chem. Res. Commun., 18: 11-17.
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88:   Ragasa, C.Y., F. Tiu and J.A. Rideout, 2004. New cycloartenol esters from Ixora coccinea. Nat. Prod. Res. : Formerly Nat. Prod. Lett., 18: 319-323.
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89:   Ragasa, C.Y., F.C. Franco Jr., D.D. Raga and C.C. Shen, 2014. Chemical constituents of Syzygium samarangense. Der Pharma Chemica, 6: 256-260.
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90:   Ragasa, C.Y., G. Soriano, O. Torres, M.J. Don and C.C. Shen, 2012. Acetogenins from Annona muricata. Pharm. J., 4: 32-37.
91:   Ragasa, C.Y., G.M. Natividad and J.A. Rideout, 1997. A bioactive thiophene derivative from Chrysanthemum coronarium. Philipp. J. Sci., 126: 275-281.
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92:   Ragasa, C.Y., G.M. Natividad and J.A. Rideout, 1998. An antifungal diterpene from Chrysanthemum coronarium. Kimika, 14: 17-20.
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93:   Ragasa, C.Y., G.S. Lorena, E.H. Mandia, D.D. Raga and C.C. Shen, 2013. Chemical constituents of Abrus precatorius. Am. J. Essential Oils Nat. Prod., 1: 7-10.
94:   Ragasa, C.Y., G.V. Alea and J.A. Rideout, 1999. An antimicrobial sesquiterpene lactone from Pseudoelephantopus spicatus. Manila J. Sci., 2: 27-31.
95:   Ragasa, C.Y., H.K.P. Ha, M. Hasika P.D. Gaspillo, J.B. Maridable and J.A. Rideout, 2008. Antimicrobial and cytotoxic terpenoids from Cymbopogon citrates Stapf. Philippine Sci., 45: 111-122.
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96:   Ragasa, C.Y., H.T. Ngo and J.A. Rideout, 2005. Terpenoids and sterols from Lagerstroemia speciosa. J. Asian Nat. Prod. Res., 7: 7-12 .
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97:   Ragasa, C.Y., I.D. Chiong and Z.D. Nacpil, 1995. Antimutagens from Vernonia cinerea. Agham, 19: 1-7.
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98:   Ragasa, C.Y., J. Caro and C.C. Shen, 2015. Chemical constituents of Artocarpus ovatus blanco. Der Pharma Chemica, 7: 178-182.
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99:   Ragasa, C.Y., J. Ganzon, J. Hofilena, B. Tamboong and J.A. Rideout, 2003. A new furanoid diterpene from Caesalpinia pulcherrima. Chem. Pharmaceutical Bull., 51: 1208-1210.
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100:   Ragasa, C.Y., J. Hofilena and J. Rideout, 2000. Lignans from Gliricidia sepium. ACGC Chem. Res. Commun., 10: 52-60.
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101:   Ragasa, C.Y., J. Laygo and J. Rideout, 2000. Antimicrobial biflavone from Araucaria bidwillii. Kimika, 16: 65-67.
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102:   Ragasa, C.Y., J. Sy, J.C. Coll, J.A. Rideout, 1998. A bioactive monoterpene ester from Erigeron linifolius. Asia Life Sci., 7: 1-9.
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103:   Ragasa, C.Y., J. Sy, V. Agbayani, R. Infante, M. Abaya and J.C. Coll, 1995. Antimutagens from Elephantopus scaber. Kimika, 11: 25-28.
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104:   Ragasa, C.Y., J. Wong and J.A. Rideout, 2008. Monoterpene glycoside and flavonoids from Blumea lacera. J. Nat. Med., 61: 474-475.
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105:   Ragasa, C.Y., J. Yumul, J. Guanzon and J.A. Rideouf, 2001. Antimicrobial triterpenes and sterols from Pseuderanthemum bicolor. Kimika, 17: 1-4.
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106:   Ragasa, C.Y., J.A. Rideout, J.C. Coll and D.S. Tierra, 1997. Sesquiterpene glycosides from Pittosporum pentandrum. Phytochemistry, 45: 545-547.
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107:   Ragasa, C.Y., J.E. Sia and J.A. Rideout, 2006. Antimicrobial flavonoid from Citrus microcarpa. CvSU Res. J., 20: 16-19.
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108:   Ragasa, C.Y., J.G. Hofilena and J.A. Rideout, 2002. New Furanoid Diterpenes from Caesalpinia pulcherrima. J. Nat. Prod., 65: 1107-1110.
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109:   Ragasa, C.Y., J.G. Hofilena and J.A. Rideout, 2004. Secondary metabolites from Bauhinia purpurea. Philippine J. Sci., 133: 1-5.
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110:   Ragasa, C.Y., J.G. Hofilena, A.L.K.C. Co and J. Rideout, 2005. Antifungal diacetylglycerols from Malachra fasciata and Pithecolobium dulce. ACGC Chem. Res. Commun., 19: 1-5.
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111:   Ragasa, C.Y., J.L. Caro and C.C. Shen, 2014. Triterpenes and sterol from Artocarpus ovatus. J. Applied Pharm. Sci., 4: 7-11.
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112:   Ragasa, C.Y., J.L. Caro, L.G. Lirio and C.C. Shen, 2014. Chemical constituents of Coix lacryma-jobi. Res. J. Pharm. Biol. Chem. Sci., 5: 344-348.
113:   Ragasa, C.Y., J.O. Sy, J.C. Coll, V.M.L. Inte and J.A. Rideout, 1997. Bioactive monoterpene glycosides from Erigeron linifolius. Phytochemistry, 46: 151-154.
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114:   Ragasa, C.Y., J.P.M. Austria, A.F. Subosa, O.B. Torres and C.C. Shen, 2015. Chemical constituents of Amaranthus viridis. Chem. Nat. Compounds, 51: 146-147.
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115:   Ragasa, C.Y., K. Jorvina and J.A. Rideout, 2004. Antimicrobial compounds from Artocarpus heterophyllus. Philippine J. Sci., 133: 97-101.
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116:   Ragasa, C.Y., K. Biona and C.C. Shen, 2014. Chemical constituents of Sechium edule (Jacq.) Swartz. Der Pharma Chemica, 6: 251-255.
117:   Ragasa, C.Y., K. Jorvina and J.A. Rideout, 2004. Triterpenes and sterols from Achras zapota. KIMIKA, 20: 1-4.
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118:   Ragasa, C.Y., K.F. Lim, L.O. Bernardo, M.V. Arceta, E.H. Mandia and C.C. Shen, 2015. Chemical constituents of Weinmannia luzoniensis. Chem. Nat. Compounds, 51: 183-184.
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119:   Ragasa, C.Y., L. Maliwat and B.F. Bowden, 1997. Antifungal and antimutagenic terpenes from Hyptis suaveolens. Kimika, 13: 17-21.
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120:   Ragasa, C.Y., L.E.N. Pimenta and J.A. , Rideout, 2007. Iridoids from Gardenia jasminoides. Nat. Prod. Res., 21: 1078-1084.
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121:   Ragasa, C.Y., L.M. Labaclado and J.A. Rideout, 2011. Triterpenes and sterol from Pouteria campechiana. Manila J. Sci., 6: 1-7.
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122:   Ragasa, C.Y., L.M.A. Navaja, L.E.N. Pimenta and J.A. Rideout, 2005. Terpenoids and sterol from Pteridium aquilinum and Bryophyllum pinnatum. CvSU Res. J., 19: 44-49.
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123:   Ragasa, C.Y., M. Aguilar, L. Theresa, V.A.S. Ng and M.L.G. Bugayong et al., 2014. Terpenoids and sterol from Aphanamixis polystachya. J. Chem. Pharm. Res., 6: 65-68.
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124:   Ragasa, C.Y., M. Dumato and J. Rideout, 1998. Antifungal compounds from Peperomia pellucid. ACGC Chem. Res. Commun., 7: 48-53.
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125:   Ragasa, C.Y., M. Laguardia and J. Rideout, 2005. Antimicrobial sesquiterpenoids and diarylheptanoid from Curcuma domestica. ACGC Chem. Res. Commun., 18: 21-24.
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126:   Ragasa, C.Y., M.C. Cruz, R. Gula and J.A. Rideout, 2000. Clerodane diterpenes from Tinospora rumphii. J. Nat. Prod., 63: 509-511.
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127:   Ragasa, C.Y., M.C. Lapina, J.J. Lee, E.H. Mandia and J.A. Rideout, 2008. Secondary metabolites from Tectona philippinensis. Nat. Prod. Res. Part A, 22: 820-824.
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128:   Ragasa, C.Y., M.C.S. Tan, M.G. Noel and C.C. Shen, 2015. Isothiocyanates and sterols from Raphanus sativus. Der Pharmacia Lettre, Vol. 7. .
129:   Ragasa, C.Y., M.J. Apuada and J.A. Rideout, 2009. Terpenoids from Taraxacum officinale. NRCP Res. J., 10: 17-26.
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130:   Ragasa, C.Y., M.M. Tepora and J. Rideout, 1998. Antimicrobial chromenes from Eupatorium toppingianum. ACGC Chem. Res. Commun., 7: 54-61.
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131:   Ragasa, C.Y., M.M. Tepora and J.A. Rideout, 2006. An antimicrobial germacranolide from Michelia champaca. CvSU Res. J., 20: 13-15.
132:   Ragasa, C.Y., M.M. Tepora and J.A. Rideout, 2007. Terpenoids from Tithonia diversifolia. J. Res. Sci. Comput. Eng., 4: 1-7.
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133:   Ragasa, C.Y., M.M. Tepora and J.A. Rideout, 2009. Antimicrobial activities of sterols from Pycnarrhena manillensis. Chem. Res. Commun., 23: 31-34.
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134:   Ragasa, C.Y., M.M. Tepora, D.L. Espineli, E. Mandia and J.A. Rideout, 2009. Chromomoric acid derivatives from Tectona philippinensis. J. Nat. Prod., 71: 701-705.
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135:   Ragasa, C.Y., M.R.A. Puno, J.M.A.P. Sengson, C.C, Shen, J.A. Rideout and D.D. Raga, 2009. Bioactive triterpenes from Diospyros blancoi. Nat. Prod. Res., 23: 1252-1258.
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136:   Ragasa, C.Y., N. Tremor and J.A. Rideout, 2002. Ionone derivatives from Alternanthera sessilis. J. Asian Nat. Prod. Res., 4: 109-115.
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137:   Ragasa, C.Y., O. Cuevas, E. Mandia and C.C. Shen, 2014. Chemical constituents of Ficus ampelas. Res. J. Pharm. Biol. Chem. Sci., 5: 355-359.
138:   Ragasa, C.Y., O. Torres, E. Marasigan and C.C. Shen, 2014. Sterols and triglyceride from Garcinia binucao. Der Pharma Chemica, 6: 229-232.
139:   Ragasa, C.Y., O.B. Torres, C.C. Shen and J.D. Jacinto, 2012. Chemical constituents of Aglaia loheri. Pharm. J., 4: 29-31.
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140:   Ragasa, C.Y., O.B. Torres, C.C. Shen, L.B. Bernardo, E.H. Mandia, K. de Castro-Cruz and P.W. Tsai, 2014. Chemical constituents of Ficus linearifolia and Ficus triangularis. Chem. Nat. Compounds, 50: 172-174.
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141:   Ragasa, C.Y., O.B. Torres, C.C. Shen, M.K.E.G. Lachica and A.B. Sulit et al., 2014. Triterpenes from the leaves of Syzygium polycephalum, S. cumini and S. samarangense. Chem. Nat. Compounds, 50: 942-944.
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142:   Ragasa, C.Y., O.B. Torres, E.H. Mandia and C.C. Shen, 2014. Chemical constituents of Terminalia microcarpa. Der Pharmnica Lettre, 6: 439-442.
143:   Ragasa, C.Y., O.B. Torres, G. Soriano and C.C. Shen, 2013. Sterols and triterpenes from the fruit of Annona muricata Linn. Silliman J., 54: 107-113.
144:   Ragasa, C.Y., O.B. Torres, J.M.P. Gutierrez, H.P.B.C. Kristiansen and C.C. Shen, 2015. Triterpenes and acylglycerols from Canarium ovatum. J. Applied Pharm. Sci., Vol. 5. .
145:   Ragasa, C.Y., O.B. Torres, J.V.V. Tongco, R.A. Razal and C.C. Shen, 2013. Resorcinols from Myristica philippensis Lam. J. Chem. Pharm. Res., 5: 614-616.
146:   Ragasa, C.Y., O.B. Torres, J.V.V. Tongco, R.A. Razal and C.C. Shen, 2014. Chemical constituents of Petersianthus quadrialatus Merr. Res. J. Pharm. Biol. Chem. Sci., 5: 181-186.
147:   Ragasa, C.Y., O.B. Torres, L.B. Bernardo, E.H. Mandia, M.J. Don and C.C. Shen, 2013. Glabretal-type triterpenoids from Dysoxylum mollissimum. Phytochem. Lett., 6: 514-518.
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148:   Ragasa, C.Y., O.B. Torres, L.B. Bernardo, E.H. Mandia, M.J. Don and C.C. Shen, 2015. Chemical constituents of Palaquium luzoniense. Chem. Nat. Compounds, 51: 181-182.
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149:   Ragasa, C.Y., P. Labrador and J.A. Rideout, 2006. Antimicrobial terpenoids from Lansium domesticum. Philippine Agric. Sci., 89: 101-105.
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150:   Ragasa, C.Y., P.W. Tsai and C.C. Shen, 2009. Antimicrobial terpenoids from Erigeron sumatrensis,. NCPR. Res. J., 10: 27-32.
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151:   Ragasa, C.Y., P.W. Tsai and C.C. Shen, 2009. Terpenoids and sterols from endemic and endangered Philippine trees,Ficus pseudopalma and Ficus ulmifolia. Philippine J. Sci., 138: 205-209.
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152:   Ragasa, C.Y., P.W. Tsai, C. Galvez and C.C. Shen, 2010. New carvotanacetone derivatives from Sphaeranthus africanus. Planta Med., 76: 146-151.
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153:   Ragasa, C.Y., Padolina, W.G., B.F. Bowden, S. Li, D.M. Tapiolas and J.C. Coll, 1993. New eudesmanolide sesquiterpenes from a Philippines collection of Wedelia prostate. J. Nat. Prod., 56: 386-393.
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154:   Ragasa, C.Y., R. Daniel and J.A. Rideout, 1998. An antifungal tetranortriterpenoid from Swietenia macrophylla. Kimika, 14: 21-25.
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155:   Ragasa, C.Y., R. Dumag and J.A. Rideout, 2001. Antimicrobial compounds from Mentha cordifolia. Philippine J. Sci., 130: 39-43.
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156:   Ragasa, C.Y., R.D. De Luna and J.G. Hofilena, 2005. Antimicrobial terpenoids from Pterocarpus indicus. Nat. Prod. Res., 19: 305-309.
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157:   Ragasa, C.Y., R.D. de Luna, W.C. Cruz and J.A. Rideout, 2005. Monoterpenelactones from the seeds of Nephelium lappaceum. J. Nat. Prod., 68: 1394-1396.
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158:   Ragasa, C.Y., R.F. Galian and C.C. Shen, 2014. Chemical constituents of Annona muricata. Der Pharma Chemica, 6: 382-387.
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159:   Ragasa, C.Y., R.F. Galian, E. Lagueux and C.C. Shen, 2014. Chemical constituents of the fruit of Persea Americana. Res. J. Pharm. Biol. Chem. Sci., 5: 984-987.
160:   Ragasa, C.Y., R.F. Galian, M. Arenal, V. Tan and C.C. Shen, 2014. Chemical constituents of Samanea saman. Res. J. Pharm. Biol. Chem. Sci., 5: 1501-1507.
161:   Ragasa, C.Y., R.M. Levida, M.J. Don and C.C. Shen, 2012. Cytotoxic isothiocyanates from Moringa oleifera Lam seeds. Philippine Sci. Lett., 5: 46-52.
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162:   Ragasa, C.Y., T. Bauca, S. Chua, K.B. Cornelio and C.C. Shen, 2015. Chemical constituents of Synsephalum dulcificum. Chem. Nat. Compounds, Vol. 51. .
163:   Ragasa, C.Y., V. Agbayani, R.B. Hernandez and J.A. Rideout, 1997. An antimutagenic monoterpene from Malachra fasciata. Philippine J. Sci., 126: 183-189.
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164:   Ragasa, C.Y., V. Ebajo Jr., M.M.D.L. Reyes and C.C. Shen, 2015. A flavone from Eucalyptus deglupta. Res. J. Pharm. Chem. Biol. Sci., Vol. 6. .
165:   Ragasa, C.Y., V. Ebajo Jr., M.M.D.L. Reyes and C.C. Shen, 2015. Chemical constituents of Eucalyptus deglupta. Der Pharma Chemica, 7: 224-229.
166:   Ragasa, C.Y., V. Ebajo Jr., V.A.S. Ng, M.M.D.L. Reyes and C.C. Shen, 2014. Chemical constituents of Strongylodon macrobotrys. Der Pharma Chemica, 6: 366-373.
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167:   Ragasa, C.Y., V.A.S. Ng and C.C. Shen, 2013. Triterpenes from Ficus nervosa. J. Chem. Pharm. Res., 5: 1070-1073.
168:   Ragasa, C.Y., V.A.S. Ng, M.M.D.L. Reyes, E.H. Mandia and C.C. Shen, 2014. Chemical constituents of Pipturus arborescens (Link) C.B. Rob. Der Pharmanica Lettre, 6: 35-42.
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169:   Ragasa, C.Y., V.A.S. Ng, M.M.D.L. Reyes, E.H. Mandia and C.C. Shen, 2014. Triterpenes and a coumarin derivative from Kibatalia gitingensis (Elm.) woodson. Der Pharma Chemica, 6: 360-364.
170:   Ragasa, C.Y., V.A.S. Ng, M.M.D.L. Reyes, E.H. Mandia, G.G. Oyong and C.C. Shen, 2014. Chemical constituents and cytotoxicity of the leaves of Dysoxylum gaudichaudianum (A. Juss.) Miq. Der Pharma Chemica, 6: 182-187.
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171:   Ragasa, C.Y., V.A.S. Ng, O.B. Torres, N.S.Y. Sevilla and K.V.M. Uy et al., 2013. Sterols, triglycerides and essential fatty acid constituents of Brassica oleracea varieties, Brassica juncea and Raphanus sativus. J. Chem. Pharm. Res., 5: 1237-1243.
172:   Ragasa, C.Y., V.A.S. Ng, V. Ebajo Jr., D. Fortin, M.M.D.L. Reyes and C.C. Shen, 2014. Triterpenes from Shorea negrosensis. Der Pharmcia Lettre, 6: 453-458.
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173:   Ragasa, C.Y., V.A.S. Ng, V. Ebajo Jr., M.M.D.L. Reyes, E.H. Mandia and C.C. Shen, 2014. Chemical constituents of Wrightia pubescens (R.Br.). Der Pharmanica Lettre, 6: 14-19.
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174:   Ragasa, C.Y., V.F. Templora and J.A. Rideout, 2001. Diastereomeric diterpenes from Coleus blumei. Chem. Pharmaceutical Bull., 49: 927-929.
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175:   Ragasa, C.Y., V.M. Intel and J.A. Rideout, 1998. An antimicrobial alkaloid from Catharanthus roseus. Manila J. Sci., 1: 19-27.
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176:   Ragasa, C.Y., W.G. Padolina, T. Yamauchi, H. Otsuka, K. Yamasaki and T. Satoh, 1993. Germacranolides from Pseudoelephantopus spicatus. Phytochemistry, 33: 627-629.
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177:   Ragasa, C.Y., Z. Pendon, V. Sangalang and J. Rideout, 1999. Flavones from Coleus amboinicus. Philippine J. Sci., 128: 347-351.
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178:   Ragasa, C.Y., Z.D. Nacpil, B.A. Penalosa, J.C. Coll and J.A. Rideout, 1997. Antimutagen and antifungal compounds from Cosmos caudatus. Philipp. J. Sci., 126: 199-206.
179:   Ragasa, C.Y., Z.D. Nacpil, G.M. Natividad, M. Tada, J.C. Coll and J.A. Rideout, 1997. Tetranortriterpenoids from Azadirachta indica. J. Phytochem., 46: 555-558.
180:   Ragasa. C.Y. and L.A.A. Rufino, 2011. Antimicrobial flavonoid fro Hibiscus rosa-sinensisL. Manila J. Sci., 7: 12-18.
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181:   Ragasa. C.Y., A.B. Alimboyoguen, S. Urban and D.D. Raga, 2008. A bioactive diterpene from Smallanthus sonchifolius. Nat. Prod. Commun., 3: 1663-1666.
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182:   Ragasa. C.Y., A.B. Alimboyoguen, S. Urban and D.D. Raga, 2008. A bioactive diterpene from Smallanthus sonchifolius. Nat. Prod. Re., 22: 814-819.
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183:   Ragasa. C.Y., J.P. de Jesus, M.J. Apuada and J.A. Rideout, 2008. A new sesquiterpene from Artemisia vulgaris. J. Na. Med., 62: 461-463.
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184:   Ramos, G.B., C.L. Arguelles, A.A. Herrera, C.Y. Ragasa, 2011. Screening for potential anti-angiogenic property utilizing avian embryo's chorioallantoic membranes (CAMs): II. Garlic (Allium sativum L.) Oil. Asia Life Sci., 20: 13-23.
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185:   Rideout, J., H.T. Ngo and C.Y. Ragasa, 2003. Polyprenols from Jatropha curcas L. with unusual ions in electrospray ionisation mass spectroscopy. ACGC Chem. Res. Commun., 16: 40-47.
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186:   Tsai, P.W., K. de Castro-Cruz, C.C. Shen and C.Y. Ragasa, 2012. Chemical constituents of Broussonetia luzonicus. Pharm. J., 4: 1-4.
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187:   Tsai, P.W., K. de Castro-Cruz, C.C. Shen and C.Y. Ragasa, 2012. Chemical constituents of Ficus odorata. Pharm. Chem. J., 46: 225-227.
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188:   Tsai, P.W., K. de Castro-Cruz, C.C. Shen and C.Y. Ragasa, 2013. Chemical constituents of Artocarpus camansi. Pharm. J., 5: 80-82.
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189:   Tsai, P.W., K.A. de Castro-Cruz, C.C. Shen and C.Y. Ragasa, 2014. Chemical constituents of Ficus triangularis. Der Pharmanica Lettre, 6: 130-133.
190:   Zulueta, M.C.A., M. Tada and C.Y. Ragasa, 1995. A diterpene from Bidens pilosa. Phytochemistry, 38: 1449-1450.
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