| Structure and in vitro digestibility of normal corn starch: effect of acid treatment, autoclaving, and beta-amylolysis. | |
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MedLine Citation:
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PMID: 20684536 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The goal of this study was to explore a new strategy to reduce the digestibility of normal corn starch (NCS). NCS was treated using 1.0% hydrogen chloride at 55 degrees C. After neutralization and desalting, starches were adjusted to 35% moisture content and subjected to autoclaving. Thereafter, starches were subjected to beta-amylolysis. At different stages, starches were characterized for chain length distribution, ordered structure including the crystalline pattern, and in vitro digestibility. The results showed that acid treatment reduced amylose molecular weight and increased the thermal resistance of A-type crystallites. V-type crystallites promoted by autoclaving were increased by acid treatment, suggesting the beneficial effect of reduced amylose molecular weight on crystallization. beta-Amylolysis had minor impact on the crystalline pattern; however, it significantly reduced the in vitro digestibility of starch by enriching linear chains. At higher levels of acid treatment, the effect of beta-amylolysis was more pronounced. |
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Authors:
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Wei Song; Srinivas Janaswamy; Yuan Yao |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 58 ISSN: 1520-5118 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-09-02 Completed Date: 2010-12-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 9753-8 Citation Subset: IM |
Affiliation:
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Department of Food Science, Purdue University, 745 Agriculture Mall Drive, West Lafayette, Indiana 47907-2009, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Amyloid beta-Peptides
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metabolism* Molecular Structure Starch / chemistry* Zea mays / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Amyloid beta-Peptides; 9005-25-8/Starch |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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