| In vivo and in vitro starch digestion: are current in vitro techniques adequate? | |
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MedLine Citation:
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PMID: 20961119 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The time evolution of the size distributions of (fully branched and debranched) starch molecules during in vivo and in vitro digestion was analyzed using size exclusion chromatography (SEC) and compared. In vivo digesta were collected from the small intestine of pigs fed with raw normal maize starch; in vitro digestion was carried out on the same diet fed to the pigs using a method simulating digestion in the mouth, stomach, and small intestine. A qualitative difference was observed between the in vitro and the in vivo digestion. The former showed a degradation of starch molecules to a more uniform size, whereas the in vivo digestion preserved the size distribution of native starch before producing a multimodal distribution, the heterogeneous nature of which current in vitro methods do not reproduce. The use of in vitro digestion to infer in vivo digestion patterns and, hence, potential nutrition benefits need to take account of this phenomenon. |
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Authors:
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Jovin Hasjim; Gautier Cesbron Lavau; Michael J Gidley; Robert G Gilbert |
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Publication Detail:
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Type: Journal Article Date: 2010-10-20 |
Journal Detail:
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Title: Biomacromolecules Volume: 11 ISSN: 1526-4602 ISO Abbreviation: Biomacromolecules Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100892849 Medline TA: Biomacromolecules Country: United States |
Other Details:
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Languages: eng Pagination: 3600-8 Citation Subset: IM |
Affiliation:
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The University of Queensland, Centre for Nutrition and Food Sciences, Brisbane, QLD 4072, Australia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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