Document Detail


High-molecular-weight barley beta-glucan in chapatis (unleavened Indian flatbread) lowers glycemic index.
MedLine Citation:
PMID:  19700035     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Food products incorporated with soluble dietary fiber beta-glucan have shown varying effects on postprandial glycemia. The objective of the present study was to test the hypothesis that a food product fortified with barley beta-glucan and subjected to minimum processing and mild cooking might be effective in lowering glycemic response. In a randomized, single-blind, controlled crossover trial, 8 healthy human subjects (3 men, 5 women; aged 26-50 years; body mass index, <30 kg/m(2)) consumed unleavened Indian flatbreads called chapatis containing high-molecular-weight barley beta-glucan at doses of 0, 2, 4, 6, and 8 g on different occasions. Capillary blood samples were collected at 0, 15, 30, 45, 60, 90, and 120 minutes after consuming the chapatis. The incremental area under the glucose curve values for all the 5 different types of chapatis were significantly low (P < .001) compared with reference food glucose. The incremental area under the glucose curve of chapatis containing 4 and 8 g beta-glucan were significantly lower than control chapatis (P < .05). Postprandial blood glucose was significantly reduced at 45 minutes by chapatis containing 4 g (P < .05) and 8 g beta-glucan (P < .01) and at 60 minutes by chapatis with 8 g beta-glucan (P < .01). The glycemic index (GI) values of chapatis with 4 and 8 g beta-glucan were 43% to 47% lower (GI, 30 and 29, respectively) compared with chapatis without beta-glucan (GI, 54). We conclude that barley beta-glucan significantly reduces GI of chapatis, particularly at doses of 4 and 8 g per serving.
Authors:
Pariyarath S Thondre; C Jeya K Henry
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Nutrition research (New York, N.Y.)     Volume:  29     ISSN:  1879-0739     ISO Abbreviation:  -     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-08-24     Completed Date:  2009-10-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8303331     Medline TA:  Nutr Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  480-6     Citation Subset:  IM    
Affiliation:
Functional Food Centre, School of Life Sciences, Oxford Brookes University, Oxford, UK. pthondre@brookes.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adult
Area Under Curve
Blood Glucose / metabolism*
Bread*
Cookery
Cross-Over Studies
Dietary Fiber / pharmacology*
Dose-Response Relationship, Drug
Female
Food, Fortified
Glycemic Index / drug effects*
Hordeum / chemistry*
Humans
India
Male
Middle Aged
Postprandial Period
Single-Blind Method
Triticum
Young Adult
beta-Glucans / pharmacology*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/beta-Glucans

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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