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http://dx.doi.org/10.3746/jkfn.2014.43.10.1565

Optimization of Extraction Conditions of Pleurotus cornucopiae by Response Surface Methodology  

Lee, Hye-Jin (Korea Food Research Institute)
Do, Jeong-Ryong (Korea Food Research Institute)
Chung, Min-Yu (Korea Food Research Institute)
Kim, Hyun-Ku (Korea Food Research Institute)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.43, no.10, 2014 , pp. 1565-1570 More about this Journal
Abstract
Response surface methodology (RSM) was used to optimize extraction conditions of Pleurotus cornocopiae. Coefficients of determination (R2) for dependent variables ranged from 0.86 at 0.91. Maximum extraction yield was 40.81% under the following conditions: microwave power of 60.08 watts, ethanolic concentration of 12.33%, and extraction time of 6.86 min. Maximum extraction electron donating ability was 35.72% at 44.13 watts, 19.30%, and 4.21 min. Maximum extraction superoxide dismutase (SOD)-like activity was 34.87% at 114.01 watts, 65.88%, and 1.56 min. Maximum extraction total polyphenol content was 31.77 mg/g at 50.52 watts, 23.00% and 2.90 min. Based on the superimposition of four dimensional RSM with respect to extraction yield, electron donating ability, SOD-like activity, and total polyphenol content obtained under various extraction conditions, the optimum ranges of extraction conditions were as follows: microwave power of 71.48~92.84 watts, ethanol concentration of 55.01~71.66%, and extraction time of 3~9 min.
Keywords
Pleurotus cornucopiae; response surface methodology (RSM); electron donating ability; total polyphenol content;
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