Document Detail


A new approach on Brewers´ spent grains treatment and potential use as lignocellulosic yeast cells carriers.
MedLine Citation:
PMID:  22624780     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The major objective of this work is to improve the pre-treatments of Brewers´ Spent Grains (BSG) aiming at their use as a source for lignocellulosic yeast carriers' (LCYC) production. Therefore, several pre-treatments of BSG have been designed aiming at obtaining various yeast carriers, differing on their physicochemical composition. Cellulose, hemicellulose, lignin, fat, protein and ash content were determined for crude BSG and the LCYCs. The long chain fatty acids profile for the crude BSG was also analyzed. Chemical treatments' successfully produced several different LCYC based on BSG. The highest cellulose content in LCYC was achieved upon application of caustic (NaOH) treatment during 40 min. Either caustic or combined acid/caustic treatments predominately generated hydrophobic, negatively charged LCYC. The feasibility of using BSG for LCYC production is strengthened by the fact that added-value by-products can be extracted before the chemical treatments are applied.
Authors:
Eduardo José Pires; Héctor A Ruiz; Jose Antonio Teixeira; António A Vicente
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-25
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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