Document Detail


Wholegrain foods made from a novel high-amylose barley variety (Himalaya 292) improve indices of bowel health in human subjects.
MedLine Citation:
PMID:  17919346     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Himalaya 292 (Hordeum vulgare var. Himalaya 292) is a novel hull-less barley variety lacking activity of a key enzyme of starch synthesis giving a grain containing less total starch, more amylose and higher total dietary fibre. Animal trials have shown that Himalaya 292 contains more resistant starch and has greater positive impact on biomarkers of large-bowel health than comparable wholegrain cereal products. The present study compared the effects of foods made from wholegrain Himalaya 292 with those made from wholegrain wheat on faecal biomarkers of bowel health in human subjects. Seventeen male and female volunteers aged 31-66 years consumed similar quantities of Himalaya 292, whole-wheat or refined cereal foods daily for 4 weeks in a randomised cross-over design. Total dietary fibre intakes from weighed food records were 45, 32 and 21 g/d for the Himalaya 292, whole-wheat and refined cereal periods, respectively. Compared with the refined cereal foods, consumption of Himalaya 292 foods resulted in 33 % higher faecal weight, a lowering of faecal pH from 7.24 to 6.98, a 42 % higher faecal concentration and a 91 % higher excretion of butyrate, a 57 % higher faecal total SCFA excretion and a 33 % lower faecal p-cresol concentration. pH and butyrate concentration and excretion were also significantly different compared with wholemeal wheat. It is concluded that consumption of a diet that included foods made from Himalaya 292 supplied more fibre and improved indices of bowel health compared with refined cereal foods and, for some indices, similar wholemeal wheat foods at equivalent levels of intake.
Authors:
Anthony R Bird; Michelle S Vuaran; Roger A King; Manny Noakes; Jennifer Keogh; Matthew K Morell; David L Topping
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2007-10-08
Journal Detail:
Title:  The British journal of nutrition     Volume:  99     ISSN:  0007-1145     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  2008 May 
Date Detail:
Created Date:  2008-04-08     Completed Date:  2009-03-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  1032-40     Citation Subset:  IM    
Affiliation:
CSIRO Human Nutrition, Adelaide, Australia. tony.bird@csiro.au
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Amylose / analysis*
Cross-Over Studies
Defecation*
Diet*
Dietary Fiber / administration & dosage*
Energy Intake
Fatty Acids, Volatile / metabolism
Feces / chemistry
Female
Hordeum / chemistry*
Humans
Hydrogen-Ion Concentration
Male
Middle Aged
Prospective Studies
Triticum
Water / analysis
Chemical
Reg. No./Substance:
0/Fatty Acids, Volatile; 7732-18-5/Water; 9005-82-7/Amylose

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


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