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In vitro bacterial fermentation of tropical fruit fibres.
MedLine Citation:
PMID:  23887033     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Tropical fruits such as mango, papaya, pineapple and banana are rich sources of dietary fibre. However, few studies have examined the potential physiological effects of fibre from these tropical fruits. The aim of this study was to characterise the fermentability of dietary fibre found in banana, papaya, pineapple and mango as an estimate of the physiological effects of consuming these fruits. Freeze-dried fruit was subjected to in vitro digestion to remove digestible carbohydrates. Digestion residues were freeze-dried prior to fermentation. In vitro fermentation was carried for 24 h under anaerobic conditions to simulate conditions in the large intestine. Gas volume, pH and short chain fatty acids (SCFAs) concentration were measured at 0, 4, 8, 12, and 24 h. SCFAs were analysed by gas chromatography. There was no gas production from 0 to 8 h time points for all samples. Mango fibre resulted in more gas at 12 and 24 h than pineapple, papaya and banana fibres. The slurry pH was significantly lower for mango fibre at 12 and 24 h compared to other samples. Mango fibre resulted in significantly more propionate at 8 h compared to papaya and pineapple fibres. Butyrate concentrations were only significantly different at 4 h. At 24 h total and individual SCFA production did not differ among samples. All fruit fibres were fermentable, with mango fibre being the most rapidly fermented. Additional work is necessary to confirm a benefit on digestive health.
Authors:
M H Vong; M L Stewart
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Beneficial microbes     Volume:  4     ISSN:  1876-2891     ISO Abbreviation:  Benef Microbes     Publication Date:  2013 Sep 
Date Detail:
Created Date:  2013-07-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101507616     Medline TA:  Benef Microbes     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  291-5     Citation Subset:  IM    
Affiliation:
Department of Human Nutrition, Food, and Animal Sciences, University of Hawaii at Manoa, 1955 East West Rd, Ag Sci 216, Honolulu, HI 96822, USA.
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