Nonato, Maribel

Rank: Professorial Lecturer 3


Level Degree Year Awarded University/Institution
 Doctoral Ph.D. Organic ChemistryNatural Products Chemistry 1993 University of Wollongong, NSW, Australia
 Master’s M.Sc. Chemistry 1986 University of Santo Tomas, Manila
 Bachelor’s B.S. Chemistry 1978 University of Santo Tomas, Manila


As Co-Author

Title Place of Publication and Publisher Publication Date
“Antimicrobial Polyphenol from the methanolic Bark Extract of Shorea contorta (Dipterocarpaceae)” Asia-Pacific Journal of Science, Mathematics and EngineeringVol. 1 (2); 55-57 2013
“A New Macrolide from the Endophytic Fungus Colletotrichum sp.” Philippine Science Letters, 6(1), 57-73 2013
“Second metabolites from Pandanus simplex” Biochemical Systematics and Ecology 40:4-5 February 2012
“Bioactive metabolites of Diaporthe sp. P133, anendophytic fungus isolated from Pandanus amaryllifolius” Journal of Natural Medicines 65(3-4);606-9 July 2011
“A new isocoumarin compound from an endophytic fungus Guignardia sp. Isolated from Pandanus amaryllifolius  Roxb.’ ACGC Chemical Research Communications 24;13-6 2010
Isolation of Pandamarilactonine-H from the Roots of Pandanus amaryllifolius and Synthesis of epi-pandamarilactonine-H. Journal of Natural Products, 73; 1453-1455 2010
Isolation and total syntheses of two new alkaloids, dubiusamines-A, and –B, from Pandanus dubius Tetrahedron, 66;3353-3359 2010
New Pyrrolidine Alkaloids from the roots of Pandanus amaryllifolius Tetrahedron Letters 51; 4143-4146 2010
Chapter on Pandanus Alkaloids : Chemistry and Biology Vol. 66 in the book series The Alkaloids: Chemistry and Biology G.A. Cordell (Editor), Elsevier Publication 2008
Anti tubercular Triterpenes and Phytosterols from Pandanus tectorius Soland var. laevis Journal of Natural Medicines, 62:232-235 2008
Alkaloids from Pandamus amaryllifolius Collected from Marikina, Philippines Philippine Journal of Science, 134(1):39-44ISSN 0031-7683 June 2005
Guidebook to Plant Screening: Phytochemical and Biological UST Printing Press 2004
Isolation and Structure Elucidation of Two New Alkaloids, Pandamarilactonine-C and –D, from Pandanus amaryllifolius  and Revision of relative Stereochemistry of Pandamarilactonine-A and –B by total Synthesis Chem. Pharm. Bull 50(9): 1303-1304 2002
Natural Products Studies of Plants in Brgy Camandag, leon, Iloilo: Alkaloid Field Survey, Antibacterial Activity Evaluation and Screening for Bioactive Compound by TLC, Scientific Augustinian Journal of the Medel Institute for Science and Technology Research no. 1 6-36 September 2011
Isolation and Structure Characterization of two New Alkaloids, Norpandamarilactonine-A and –B in Pandanus amaryllifolius Roxb., by Spectroscopic and Synthetic Methods. Journal of Natural Products 64(9), 1224-1225 2001
A New Alkaloid, PAndanamine; finding of an Anticipated Biogenetic Intermediate in Pandanus amaryllifolius Roxb. Tetrahedron Letter, 42 2995-2996 2001
Proceeding on the Symposium on Scientific Research for Sustained Used and Efficient Management of Natural Resources, International Foundation for Science NRCP, DOST 2000
Structure Characterization, Biomimetric Total Synthesis, and Optical Purity of Two New Pyrrolidine Alkaloids, Pandamarilactonine-A and –B, Isolated from Pandanus amaryllifolius Roxb. Journal of the American Chemical Society, 122 (36):8635-8639 2000
The Complete NMR Assignment of the Alkaloids of Ipomoea muricata (L.) Jacq. Convolvulaceae KINIKA 16(1); 25-30 2000
Biological Activities of Chemical Constituents From Ipomoea muricata (Jacq.) Convolvulaceae Acta Manilana 47:41-52 1999
“Isolation of Lignans and Ionone-Type Sesquiterpenes from the Leaves of Okinawan Pandanus tectorius” Natural Medicines, 53(6): 335 1999
“Vomifoliol, a False Positive Alkaloid from c.f. P. nobilis x P. vidalii (Pandanaceae)” KIMIKa, 15(1):17-20 1999
“First Synthesis of the Pandanus Alkaloids Pandamarilactams-3Y and -3X” Heterocycles, 50(1):75-78 1999
“Alkaloids” Philippine Science Encyclopedia, National Research Council of the Philippines, Manila P 77-93 1998
“The Identification of Phenylpropanoid, Phenylpropanoid Glycosides and a Phenylethanol Diglucoside from Ipomoea muricata L. Jacq. Convolulaceae” Acta Manilana, Vol. 45, p. 13-20 1997
“Alkaloid – Bearing Pandanus Species in Luzon, Philippines Acta Manilan, Vol. 45, p. 21-28 1997
“Vomifoliol from Graptophyllum pictum Griff” ACGC Chemical Research Communication, Vol. 4, p1 1996
“Prospecting for Medicinal Plants”Farmatofia: Proceedings of the Scientific Forum on Standardization and Quality Assurance of Herbal Medicines March 4-5, 1996
“Distribution of Alkaloid-Containing Pandanus Species in Luzon” Proceeding of the 1996 S & T Research Colloquium, p56 1996
“Alkaloids of Pandanus dubius Spreng” Proceedings of the 1996 S & T research Colloquium, p50 1996
“Ethno botanical Documentation of Medicinal Plants of the Batak and Tagbanua Tribes of Palawan” Proceeding of the UST S & T Research Colloquium, p58 1996
“preliminary Study on the Production of Phytoalexin from Two Capsicum Species” Proceeding of the 1996 S & T Research Colloquium, p45 1996
Synephrine: An Adrenergic Drug from Calamansi Wastes” The Philippine Journal Science, 124(4): 311-325 Oct. –Dec. 1995
“Diuretic Study on Five Pandanus Species” Acta Manilana, 43: 25-30 1995
“Antimicrobiological Assays”, Manual on Biological Assays and Phytochemical Techniques,  National Workshop on Bioassay and Phytochemical Testing University of the Philippines in the Visayas, Miag-ao, Iloilo October 24-27, 1995
“alkaloid of the Genus Pandanus as a Chemotaxonomic Market” Proceeding for the 8th Asian Symposium on Medical Plants and Spices and other Natural Products (ASOMPS), Melaka, Malaysia June 14-17, 1994
Glucoindole Alkaloids from Ophiorrhiza acuminate Linn. (Rubiaceae) Planta Medica 61(3): 278-280 1995
Basic Chromatography: Thin Layer Chromatography and Column ChromatographyProceedings for the Seminar-Workshop on Alkaloid Field Survey and Chromatographic Techniques Holy Trinity College, Puerto Princesa City, Palawan March 21-24, 1994
Structural Characterization of Novel Piperidine Alkaloids from Pandanus amaryllifolius Roxb. (Pandeanaceae) Inverse-Detection 2-D NMR Techniques, Phytochemistry. 34(4): 1159-1163 1993
“Alkaloid Studies on Selected Philippine Plants” National Research Council of the Philippines Research Journal, 1(1): 76-82 1992
1H – NMR Assignments of Anonaine and Xylopine Derivatives from Talauma gitingensis Journal of Natural Products 53 (6): 1623 1990
Two Antibacterial Compounds from Ipomoea muricata (L.) Jacq. Convolvulaceae Acta Manilana 35 1987
Phytochemical, Microbiological and Pharmacological Screening of Medicinal Plants Acta MAnilana SupplementThe UST Research Center Staff 1985
Monograph on Pepita del Tonkin – An Herbal Remedy Against Skin Ailments The UST Research Center March 1981
Report on the Regional Seminar on the Recent Trends in the Chemistry of Natural Products Research Acta Manilana 20 (30) 1981
“Studies of Ipomoea Muricata (L.) Jacq. (Convolvulaceae) Part 1” Acta Manilana 20 (30) 1981