NDLI: CHARACTERIZATION AND ANTIOXIDANT ACTIVITY OF ISOLATED PHYTOCONSTITUENTS FROM PEAR (Pyrus pyrifolia)

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CHARACTERIZATION AND ANTIOXIDANT ACTIVITY OF ISOLATED PHYTOCONSTITUENTS FROM PEAR (Pyrus pyrifolia)

Content Provider	KrishiKosh-Indian National Agricultural Research System
Advisor	Prakash, Poonam
Researcher	Upadhyay, Ms Pooja
Abstract	Pear (Pyrus pyrifolia) fruit is popular among consumers due to its high nutritive value and good taste. The aim of present study was to characterize the isolated phytoconstituents from pear pulp and peel and evaluate their antioxidant activity. Repeated chromatography of the extracts on silica gel columns using different solvent systems afforded three pure compounds. The compunds named as oleiyl-Î²-D-hexaglucoside, oleiyl-Î²-D-tetraglucoside and (Z) icos 9-enoic acid were isolated from methanol pulp, acetone pulp and methanol peel extracts respectively. All three purified compounds were characterized on the basis of 1H and 13C NMR spectroscopy. The antioxidant potentials of compounds were measured by 2, 2-diphenyl-2-picrylhydrazyl (DPPH) and reducing power assays. The compound isolated from peel extract of the fruit showed maximum scavenging activity than the other two compounds.
Page Count	211
File Size	3442893
File Format	PDF
Language	English
Publisher	Department of Chemistry Faculty of Science Sam Higginbottom University of Agriculture
Publisher Place	Allahabad
Access Restriction	Open
Subject Keyword	Key Words: Pyrus Pyrifolia Oleiyl-î²-d-hexaglucoside Oleiyl-î²-d-tetraglucoside (z) Icos 9-enoic Acid. Characterization and Antioxidant Activity of Isolated Phytoconstituents From Pear (pyrus Pyrifolia) Chemistry
Content Type	Text
Educational Degree	Doctor of Philosophy (Ph.D.)
Resource Type	Thesis

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