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KMID : 1059520110550060983
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Journal of the Korean Chemical Society
2011 Volume.55 No. 6 p.983 ~ p.987
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Extracting (-)-hydroxycitric Acid from Dried Rinds of Garcinia oblongifolia Champ. ex Benth by Using Microwave
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Dang Quang Vinh
Dao Hung Cuong
Nguyen Thuong
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Abstract
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Surveys on the process of extracting acid from dried rinds of Garcinia oblongifolia Champ. ex Benth (G. oblongifolia) using microwave in terms of time, machine power and solid/liquid rate, have resulted in such findings as: the best time allocation for extracting is 25 minutes; machine power works best at level 2 (microwave power is 400 W); suitable rate of solid/liquid is 0.071 (approximately 150 mL solvent per 10 g of sample). The total amounts acid and (-)-hydroxycitric acid extracted from 100 g dried rinds of G. oblongifolia are 18.592 g and 10.137g respectively. This is the first finding on extraction of (-)-HCA from dried rinds of G. oblongifolia using microwave.
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KEYWORD
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Garcinia oblongifolia, (-)-hydroxycitric acid, Microwave
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