Abstract
Studied the extra-high pressure extraction of polyphenols from Walnut green peels. The effect of operation conditions such as extraction temperature, pressure, time and ratio of material were analyzed. On the basis of single-factor test, the optimum extraction technology of walnut green peels polyphenols and mathematical regression model were established by response surface methodology. The results showed that the optimal extraction conditions were as followed: alcohol concentration of 50%, processing temperature of 42 ℃, extraction pressure of 310 MPa, extraction time of 6 min, ratio of liquid to material of 40∶1(V∶m). Under these conditions, the maximum predictive yield of polyphenols from walnut green husks was 7.417 mg/g, The standardized regression equation can be used to predict the extraction yield of polyphenols from walnut green peels.
Publication Date
8-28-2015
First Page
178
Last Page
182
DOI
10.13652/j.issn.1003-5788.2015.04.046
Recommended Citation
Lijun, SONG; Xujie, HOU; Yawen, LI; and Li, ZHANG
(2015)
"Extra-high pressure extraction of polyphenols from walnut green peels by response surface methodology,"
Food and Machinery: Vol. 31:
Iss.
4, Article 46.
DOI: 10.13652/j.issn.1003-5788.2015.04.046
Available at:
https://www.ifoodmm.cn/journal/vol31/iss4/46
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