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柱状假丝酵母脂肪酶去除麦秸中亲脂类抽提物的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年02期
Page:
35-41
Column:
研究论文
publishdate:
2012-04-10

Article Info:/Info

Title:
Study on removal of lipophilic extractives from wheat straw by Candida cylindracea lipases
Author(s):
JIANG Hua1 ZHANG Yang2 WANG Xuefei1 MA Yuejin1
1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; 2. College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037,China
Keywords:
lipophilic extractives wheat straw lipases Candida cylindracea response surface methodology
Classification number :
TS653.6
DOI:
10.3969/j.jssn.1000-2006.2012.02.008
Document Code:
A
Abstract:
The removal efficiency of lipophilic extractives from wheat straw(WS)by Candida cylindracea lipases was investigated using response surface method. The results showed that the lipase dosage was the most significant and the temperature was the least significant among all parameters including lipase dosage, temperature, pH and time during the lipase treatment. The removal rate of lipophilic extractives increased with the lipase dosage increasing and the treatment time prolonging. The optimal temperature and pH were 46℃ and 7.6, respectively. The maximum removing rate of lipophilic extractives reached 61.1% at aforesaid conditions.It was indicated that the lipases can effectively remove the lipophilic extractives from WS,and the lipace treatment was an effective method to improve WS wettability.

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Last Update: 2012-04-10