Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810089217
Authors: Srivastava, Jyotsana
Advisor: Prakash, Dr. Poonam
Title: ISOLATION AND CHARACTERIZATION OF NOVEL PHYTOCONSTITUENTS FROM Jasminum auriculatum STEM AND THEIR ANTIOXIDANT ACTIVITY
Publisher: Department of Chemistry Faculty of Science Sam Higginbottom University of Agriculture, Technology And Sciences Allahabad – 211 007
Language: en
Type: Thesis
Pages: 180p.
Agrotags: null
Keywords: Key Words: Jasminum auriculatum, cis-n-Dotriacont-6-enyl (3”, 4”-dioxymethylene phenyl)-trans, trans-2’, 4’-pentadienoate, 4-Pentadecanoxy ferulic acid and cis-n-Triacont-20-enoic acid.
Abstract: Jasminum auriculatum is a traditional medicinal plant in India. It is distributed widely in South India and also on dry slopes of the Western Ghats. Each part of the plant has medicinal value and is thus commercially exploitable. The present study comprises isolation and characterization of novel phytoconstituents from Jasminum auriculatum stem and their antioxidant activity. Isolation of compounds was done using crude extracts of Jasminum auriculatum stems. The most important step in the analysis was sample preparation. It involves multi steps including sample collection, drying, grinding and extraction. After extraction open column chromatography was used to separate compounds. Purity of isolated compounds was checked on TLC. Three compounds were isolated from the methanolic extract viz cis - n- Dotriacont- 6-enyl (3”, 4”- dioxymethylene phenyl) - trans, trans - 2’, 4’-pentadienoate, 4-Pentadecanoxy ferulic acid and cis-n-Triacont-20-enoic acid. The structures of these compounds were determined by spectroscopic methods including 1H, 13C and Mass spectroscopy. The antioxidant activity of these compounds was determined by DPPH (1, 1- Diphenyl-2-picryl hydroxyl) assay. The result of antioxidant activity indicated that among all these isolated compounds, 4-Pentadecanoxy ferulic acid (34.62%) possess the highest activity followed by cis - n- Dotriacont- 6-enyl (3”, 4”- dioxymethylene phenyl) - trans, trans - 2’, 4’-pentadienoate (22.85%) and cis-n-Triacont-20-enoic acid (20.08%). From the result of the present study it is concluded that compound 4-Pentadecanoxy ferulic acid can act as a potential antioxidant agent.
Description: Ph. D. Thesis
Subject: Chemistry
Theme: ISOLATION AND CHARACTERIZATION OF NOVEL PHYTOCONSTITUENTS FROM Jasminum auriculatum STEM AND THEIR ANTIOXIDANT ACTIVITY
Research Problem: ISOLATION AND CHARACTERIZATION OF NOVEL PHYTOCONSTITUENTS FROM Jasminum auriculatum STEM AND THEIR ANTIOXIDANT ACTIVITY
These Type: Ph.D
Issue Date: 2018
Appears in Collections:Thesis

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