Study on removal of lipophilic extractives from wheat straw by Candida cylindracea lipases

doi:10.3969/j.jssn.1000-2006.2012.02.008

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (02): 35-41.doi: 10.3969/j.jssn.1000-2006.2012.02.008

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Study on removal of lipophilic extractives from wheat straw by Candida cylindracea lipases

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

Online:2012-04-10 Published:2012-04-10

Abstract

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.

CLC Number:

TS653.6

JIANG Hua, ZHANG Yang, WANG Xuefei, MA Yuejin. Study on removal of lipophilic extractives from wheat straw by Candida cylindracea lipases[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2012, 36(02): 35-41.

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Study on removal of lipophilic extractives from wheat straw by Candida cylindracea lipases

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