Date of Publication
2007
Document Type
Master's Thesis
Degree Name
Master of Science in Chemistry
Subject Categories
Chemistry
College
College of Science
Department/Unit
Chemistry
Thesis Adviser
Consolacion Y. Ragasa
Defense Panel Chair
Jaime Raul O. Janairo
Defense Panel Member
Glenn V. Alea
Alicia M. Aguinaldo
Abstract/Summary
Two plants, Tectona philippinensis Benth and Hook, locally known as Philippine Teak, and Emilia sonchifolia Linn, commonly known as tagulinaw, were studied for their chemical constituents. The air-dried leaves of Tectona philippinensis Benth and Hook from Iling Island, Mindoro afforded two new diastereomeric chromomoric acid derivatives by silica gel chromatography. Their structures were elucidated by extensive 1D and 2D NMR spectroscopy. Preliminary testing revealed that the diastereomers active in lowering blood glucose level in rats at 2.0 mg / 200 g body weight. Air dried aerial parts of Emilia sonchifolia Linn afforded a mixture of taraxasteryl acetate and lupeol acetate in a 2:1 ratio by silica gel column chromatography. The structures of these compounds were elucidated by extensive 1D and 2D NMR spectroscopy.
Abstract Format
html
Language
English
Format
Electronic
Accession Number
CDTG004321
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Physical Description
xiv, 188 leaves ; 28 cm.
Keywords
Dichloromethane; Tectona; Teak--Philippines; Tectona philippinensis; Emilia Sonchifolia Linn
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Recommended Citation
Espineli, D. L. (2007). Chromomoric acids from Tectona Philippinensis benth and hook and triterpenes from Emilia sonchifolia Linn. Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/3507
