Chemical constituents of a commercial green tea
Date of Publication
2012
Document Type
Master's Thesis
Degree Name
Master of Science in Chemistry
College
College of Science
Department/Unit
Chemistry
Abstract/Summary
The dichloromethane extract of a commercial green tea afforded a proposed new pyran trimer (1) and three known antioxidants: spinasterol, lutein, and b-amyrin linoleate. The structure of 1 was elucidated by extensive 1D and 2D NMR spectroscopy and confirmed by mass spectrometry. The known compounds were identified by comparison of their 13C NMR data with those reported in the literature. Compound 1 exhibited low antibacterial activities against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus and low antifungal activities against Candida albicans and Trichophyton mentagrophytes. Cytotoxicity test using MTT assay indicated that 1 was non-cytotoxic against a colon carcinoma (HCT116).
Abstract Format
html
Language
English
Format
Electronic
Accession Number
CDTG005111
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Recommended Citation
Cruz, M. (2012). Chemical constituents of a commercial green tea. Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/4114
