Enzymatic degradation of Elephant grass (Pennisetum purpureum) stems: Influence of the pith and bark in the total hydrolysis

BioChem - DOS

Search

메타 데이터

바이오화학분류

- 바이오플라스틱
  1. 플라스틱
  2. 기타
- 바이오정밀화학
  1. 용매
  2. 기타
- 화장품용 기능성소재
  1. 계면활성제⁄증점제
  2. 기타
- 의료용 화학소재
  1. 식품첨가제

논문

Enzymatic degradation of Elephant grass (Pennisetum purpureum) stems: Influence of the pith and bark in the total hydrolysis

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Perez-Boada, M.; Prieto, A.; Prinsen, P.; Forquin-Gomez, M.P.; del Rio, J.C.; Gutierrez, A.; Martinez, A.T.; Faulds, C.B.

초록

The internal pith of a high energy plant, Elephant grass (EG), was more extensively degraded (>50% dry matter) compared to the outer cortex (31%) or the whole stem (35%) by an enzyme preparation from Humicola insolens, Ultraflo. Reducing sugars and acetic acid release from the pith was also higher compared to the cortex. Supplementation of Ultraflo with a type-C feruloyl esterase increased the level of deacetylation but also led to reduced solubilisation. The addition of 20% dimethyl sulfoxide (DMSO) as a co-solvent also reduced the solubility of EG by Ultraflo, although acetic acid release was increased, complimenting previous results found on model substrates. The presence of DMSO was also shown to have a protective effect on xylanase activity but not acetyl esterase activity in Ultraflo. Xylan in the biomass was preferentially solubilised by DMSO, while Ultraflo removed more glucose than xylose.

발행연도

2014

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

167

페이지

pp.469-475

DOI

10.1016/j.biortech.2014.06.018