Lactic acid production on liquid distillery stillage by Lactobacillus rhamnosus immobilized onto zeolite

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바이오화학분류

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

논문

Lactic acid production on liquid distillery stillage by Lactobacillus rhamnosus immobilized onto zeolite

학술지

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

저자명

Djukic-Vukovic, A.P.; Mojovic, L.V.; Jokic, B.M.; Nikolic, S.B.; Pejin, J.D.

초록

In this study, lactic acid and biomass production on liquid distillery stillage from bioethanol production with Lactobacillus rhamnosus ATCC 7469 was studied. The cells were immobilized onto zeolite, a microporous aluminosilicate mineral and the lactic acid production with free and immobilized cells was compared. The immobilization allowed simple cell separation from the fermentation media and their reuse in repeated batch cycles. A number of viable cells of over 1010 CFUg-1 of zeolite was achieved at the end of fourth fermentation cycle. A maximal process productivity of 1.69gL-1, maximal lactic acid concentration of 42.19gL-1 and average yield coefficient of 0.96gg-1 were achieved in repeated batch fermentation on the liquid stillage without mineral or nitrogen supplementation.

발행연도

2013

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

135

페이지

pp.454-458

DOI

10.1016/j.biortech.2012.10.066