Document Detail


Characterization of lipids and lignans in brewer's spent grain and its enzymatically extracted fraction.
MedLine Citation:
PMID:  22963516     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Brewer's spent grain (BSG), the major side-stream of brewing, consists of the husks and the residual parts of malts after the mashing process. BSG was enzymatically fractionated by a two-step enzymatic treatment with carbohydrate and protein degrading enzymes, which solubilized 66% of BSG. BSG contained 11% lipids, which were mostly triglycerides but also a notable amount of free fatty acids was present. Lipids were mostly solubilised due to the alkaline pH applied in the protease treatment. The main fatty acids were linoleic, palmitic and oleic acids. Several lignans were identified in BSG, syringaresinol and secoisolariciresinol being the most abundant, many associated with the cell wall matrix and released by the alkaline protease treatment.
Authors:
Piritta Niemi; Tarja Tamminem; Annika Ingegärd Smeds; Kaarina Viljanen; Taina Ohra-Aho; Ulla Holopainen-Mantila; Craig Faulds; Kaisa Poutanen; Johanna Buchert
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-10
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-11     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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