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http://dx.doi.org/10.3746/jkfn.2009.38.2.244

Optimization of Extraction Conditions for Dried Jujube by Response Surface Methodology  

Woo, Koan-Sik (National Institute of Crop Science, Rural Development Administration)
Lee, Sang-Hoon (Dept. of Food Science and Technology, Chungbuk National University)
Noh, Jin-Woo (Dept. of Food Science and Technology, Chungbuk National University)
Hwang, In-Guk (Dept. of Food Science and Technology, Chungbuk National University)
Lee, Youn-Ri (Dept. of Food Science and Technology, Chungbuk National University)
Park, Hee-Jeong (Rural Development Administration)
Lee, Jun-Soo (Dept. of Food Science and Technology, Chungbuk National University)
Kang, Tae-Su (Dept. of Biofood Science and Biotechnology, Chungbuk Provincial College)
Jeong, Heon-Sang (Dept. of Food Science and Technology, Chungbuk National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.38, no.2, 2009 , pp. 244-251 More about this Journal
Abstract
Extraction characteristics of dried jujube and functional properties of corresponding extract were monitored by response surface methodology. Maximum extraction yield of 53.69% was obtained at extraction temperature of $50.35^{\circ}C$, extraction time of 16.69 hr, and ethanol concentration of 72.88%. At extraction temperature, extraction time, and ethanol concentration of $45.80^{\circ}C$, 15.47 hr, and 73.12%, respectively, maximum cyclic adenosine monophosphate content was 8.20 mg/100 g. Maximum total polyphenol content was 18.85 mg/g at extraction temperature, extraction time, and ethanol concentration of $64.91^{\circ}C$, 20.84 hr, and 66.91%, respectively. Maximum total flavonoid content was 0.48 mg/g at extraction temperature, extraction time, and ethanol concentration of $57.36^{\circ}C$, 15.14 hr, and 71.08%, respectively. $IC_{50}$ value of electron donating ability showed maximum level of 32.34 mg/mL at extraction temperature of $48.46^{\circ}C$, extraction time of 19.25 hr, and ethanol concentration of 65.36%. Maximum ascorbic acid equivalent antioxidant capacity was 3.58 mg ascorbic acid equivalent per gram sample at extraction temperature, extraction time, and ethanol concentration of $56.09^{\circ}C$, 21.86 hr, and 65.36%, respectively.
Keywords
jujube (Zizyphus jujuba forma hoonensis C.S. Yook); cyclic adenosine monophosphate; polyphenol; antioxidant; response surface methodology;
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Times Cited By KSCI : 5  (Citation Analysis)
Times Cited By SCOPUS : 5
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