Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals

Brewer’s spent grain (BSG) is an important by-product from the brewing process produced in high amounts worldwide. BSG is rich in carbohydrates, lignin, proteins and lipids. In this work, the chemical composition of the lipids in BSG was studied in detail by gas chromatography and mass spectrometry....

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Detalhes bibliográficos
Autores: Río Andrade, José Carlos del, Prinsen, Pepijn, Gutiérrez Suárez, Ana
Tipo de documento: artigo
Data de publicação:2013
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/82493
Acesso em linha:http://hdl.handle.net/10261/82493
Access Level:Acceso aberto
Palavra-chave:Brewers’ spent grains
Triglycerides
Sterols
Alkylresorcinols
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spelling Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicalsRío Andrade, José Carlos delPrinsen, PepijnGutiérrez Suárez, AnaBrewers’ spent grainsTriglyceridesSterolsAlkylresorcinolsBrewer’s spent grain (BSG) is an important by-product from the brewing process produced in high amounts worldwide. BSG is rich in carbohydrates, lignin, proteins and lipids. In this work, the chemical composition of the lipids in BSG was studied in detail by gas chromatography and mass spectrometry. The predominant lipids were triglycerides (67% of total extract), followed by a series of free fatty acids (18%). Lower amounts of monoglycerides (1.6%) and diglycerides (7.7%) were also identified among the lipids in BSG, together with minor amounts of other aliphatic series such as n-alkanes and alkylresorcinols. Steroid compounds (steroid hydrocarbons, steroid ketones, free sterols, sterol esters and sterol glycosides) were also found in important amounts in BSG (ca. 5%), with free and conjugated sterols being the most abundant steroids. BSG can thus be regarded as a valuable source of phytochemicals of interest for the pharmaceutical, cosmetic, food or other industries.This study has been funded by the Spanish project AGL2011-25379, the CSIC project 201040E075 and the EU-project LIGNODECO (KBBE-244362). Pepijn Prinsen thanks the Spanish Ministry of Science and Innovation for a FPI fellowship.Peer reviewedElsevier201320132013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/82493reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#KBBE- 244362info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/824932026-05-22T06:33:51Z
dc.title.none.fl_str_mv Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
title Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
spellingShingle Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
Río Andrade, José Carlos del
Brewers’ spent grains
Triglycerides
Sterols
Alkylresorcinols
title_short Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
title_full Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
title_fullStr Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
title_full_unstemmed Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
title_sort Chemical composition of lipids in brewer’s spent grain: A promising source of valuable phytochemicals
dc.creator.none.fl_str_mv Río Andrade, José Carlos del
Prinsen, Pepijn
Gutiérrez Suárez, Ana
author Río Andrade, José Carlos del
author_facet Río Andrade, José Carlos del
Prinsen, Pepijn
Gutiérrez Suárez, Ana
author_role author
author2 Prinsen, Pepijn
Gutiérrez Suárez, Ana
author2_role author
author
dc.subject.none.fl_str_mv Brewers’ spent grains
Triglycerides
Sterols
Alkylresorcinols
topic Brewers’ spent grains
Triglycerides
Sterols
Alkylresorcinols
description Brewer’s spent grain (BSG) is an important by-product from the brewing process produced in high amounts worldwide. BSG is rich in carbohydrates, lignin, proteins and lipids. In this work, the chemical composition of the lipids in BSG was studied in detail by gas chromatography and mass spectrometry. The predominant lipids were triglycerides (67% of total extract), followed by a series of free fatty acids (18%). Lower amounts of monoglycerides (1.6%) and diglycerides (7.7%) were also identified among the lipids in BSG, together with minor amounts of other aliphatic series such as n-alkanes and alkylresorcinols. Steroid compounds (steroid hydrocarbons, steroid ketones, free sterols, sterol esters and sterol glycosides) were also found in important amounts in BSG (ca. 5%), with free and conjugated sterols being the most abundant steroids. BSG can thus be regarded as a valuable source of phytochemicals of interest for the pharmaceutical, cosmetic, food or other industries.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/82493
url http://hdl.handle.net/10261/82493
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
KBBE- 244362
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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