Fermentative hydrogen production using wheat flour hydrolysate by mixed culture

BioChem - DOS

Search

메타 데이터

바이오화학분류

- 바이오플라스틱
  1. 플라스틱
  2. 기타
- 바이오정밀화학
  1. 용매
  2. 화학제품
  3. 연료
  4. 기타
- 화장품용 기능성소재
  1. 계면활성제⁄증점제
  2. 기타
- 의료용 화학소재
  1. 치료제
  2. 식품첨가제

논문

Fermentative hydrogen production using wheat flour hydrolysate by mixed culture

학술지

International journal of hydrogen energy

저자명

Han, Wei; Wang, Xiaonan; Ye, Lan; Huang, Jingang; Tang, Junhong; Li, Yongfeng; Ren, Nanqi

초록

Abstract Wheat bran was first used to produce glucoamylase by Aspergillus awamori from solid-state fermentation (SSF). Wheat flour with different mass ratios of 2%–8% (w/v) were hydrolyzed by glucoamylase to generate the wheat flour hydrolysates (containing glucose concentrations of 10.69–35.14 g/L) which were then utilized as substrate for fermentative hydrogen production by heat pretreated sludge. The cumulative hydrogen production increased from 1181.3 ml to 2379.6 ml as glucose concentration increased from 10.69 g/L to 35.14 g/L. The modified Gompertz model was used to describe the cumulative hydrogen production for different glucose concentrations. However, the maximum hydrogen yield of 1.9 mol H2/mol glucose was observed at glucose concentration of 10.69 g/L probably due to the products inhibition and oxidization/reduction of NADH. The wheat flour hydrolysate could be used to replace commercial glucose for fermentative hydrogen production and therefore reduce the cost of hydrogen production for large scale. Highlights <UL> <LI> Bran was utilized by Aspergillus awamori in solid-state fermentation to produce glucoamylase. </LI> <LI> Glucoamylase was used to hydrolyze wheat flour to obtain the generic feedstock. </LI> <LI> The feasibility of using wheat flour hydrolysate for H2 production was investigated. </LI> <LI> The highest cumulative hydrogen production of 2379.6 ml was observed. </LI> </UL>

발행연도

2015

발행기관

Elsevier

ISSN

0360-3199

ISSN

1879-3487

권

호

페이지

pp.4474-4480