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Organic acids from leaves, fruits, and rinds of Garcinia cowa.

Jena, B. S. and Jayaprakasha, G. K. and Sakariah, K. K. (2002) Organic acids from leaves, fruits, and rinds of Garcinia cowa. Journal of agricultural and food chemistry, 50 (12). pp. 3431-3434. ISSN 0021-8561

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Abstract

Organic acids in fresh leaves, fruits, and dried rinds of Garcinia cowa (G. cowa) were determined by high-performance liquid chromatography. Fresh leaves, fruits, and dried rinds were extracted with water at 120 degrees C for 20-30 min under 15 lbs/in(2) pressure. Also, dried rinds were extracted with solvents (acetone and methanol) using a Soxhlet extractor at 60 degrees C for 8 h each. The samples were injected to HPLC under gradient elution with 0.01 M phosphoric acid and methanol with a flow rate of 0.7 mL/min using UV detection at 210 nm. The major organic acid was found to be (-)-hydroxycitric acid present in leaves, fruits, and rinds to the extent of 1.7, 2.3, and 12.7%, respectively. (-)-Hydroxycitric acid lactone, and oxalic and citric acids are present in leaves, fruits, and rinds in minor quantities. This is the first report on the composition of organic acids from G. cowa.

Item Type: Article
Uncontrolled Keywords: Garcinia cowa; (-)-hydroxycitric acid; lactone; citric acid; HPLC
Subjects: 500 Natural Sciences and Mathematics > 10 Plants > 06 Trees And Shrubs
500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 24 Organic Chemistry
Divisions: Human Resource Development
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 05 Jan 2009 09:08
Last Modified: 25 Sep 2018 11:10
URI: http://ir.cftri.com/id/eprint/2106

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