Pretreatment of rapeseed straw by sodium hydroxide

被引：32

作者：

Kang, Kyeong Eop ^{[1
,2
]}

Jeong, Gwi-Taek ^{[3
]}

Park, Don-Hee ^{[1
,2
,4
]}

机构：

[1] Chonnam Natl Univ, Sch Biol Sci & Technol, Kwangju 500757, South Korea

[2] Chonnam Natl Univ, Interdisciplinary Program Grad Sch Bioenergy & Bi, Kwangju 500757, South Korea

[3] Pukyong Natl Univ, Dept Biotechnol, Pusan 608737, South Korea

[4] Chonnam Natl Univ, Res Inst Catalysis, Kwangju 500757, South Korea

来源：

BIOPROCESS AND BIOSYSTEMS ENGINEERING | 2012年 / 35卷 / 05期

关键词：

Rapeseed straw; Sodium hydroxide; Pretreatment; Optimization; Response surface methodology; ENZYMATIC-HYDROLYSIS; ACID PRETREATMENT; CORN STOVER; SACCHARIFICATION; DELIGNIFICATION;

D O I：

10.1007/s00449-011-0650-8

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Pretreatment method for rapeseed straw by sodium hydroxide was investigated for production of bioethanol and biobutanol. Various pretreatment parameters, including temperature, time, and sodium hydroxide concentration were optimized using a statistical method which is a central composite design of response surface methodology. In the case of sodium hydroxide pretreatment, optimal pretreatment conditions were found to be 7.9% sodium hydroxide concentration, 5.5 h of reaction time, and 68.4 A degrees C of reaction temperature. The maximum glucose yield which can be recovered by enzymatic hydrolysis at the optimum conditions was 95.7% and the experimental result was 94.0 +/- A 4.8%. This experimental result was in agreement with the model prediction. An increase of surface area and pore size in pretreated rapeseed straw by sodium hydroxide pretreatment was observed by scanning electron microscope.

引用

页码：705 / 713

页数：9

共 22 条

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