Differential growth of bowel commensal Bacteroides species on plant xylans of differing structural complexity

被引：42

作者：

Centanni, Manuela ^{[1
]}

Hutchison, Jennifer C. ^{[2
]}

Carnachan, Susan M. ^{[2
]}

Daines, Alison M. ^{[2
]}

Kelly, William J. ^{[3
]}

Tannock, Gerald W. ^{[1
,4
,5
]}

Sims, Ian M. ^{[2
,5
]}

机构：

[1] Univ Otago, Dept Microbiol & Immunol, POB 56, Dunedin 9054, New Zealand

[2] Victoria Univ Wellington, Ferrier Res Inst, POB 33-436, Petone 5046, New Zealand

[3] Donvis Ltd, Palmerston North 4410, New Zealand

[4] Riddet Inst Ctr Res Excellence, Palmerston North 4442, New Zealand

[5] Microbiome Otago, Dunedin, New Zealand

来源：

CARBOHYDRATE POLYMERS | 2017年 / 157卷

关键词：

Prebiotics; Xylan; Human bowel microbiota; Bacteroides; GUT MICROBIOTA; POLYSACCHARIDE UTILIZATION; EVOLUTION; DIET; IBS;

D O I：

10.1016/j.carbpol.2016.11.017

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Alterations to the composition of the bowel microbiota (dysbioses) are associated with particular diseases and conditions of humans. There is a need to discover new, indigestible polysaccharides which are selective growth substrates for commensal bowel bacteria. These substrates (prebiotics) could be added to food in intervention studies to correct bowel dysbiosis. A collection of commensal bacteria was screened for growth in culture using a highly-branched xylan produced by New Zealand flax. Two, Bacteroides ovatus ATCC 8483 and Bacteroides xylanisolvens DSM 18836 grew well on this substrate. The utilisation of the xylan was studied chromatographically and by constituent sugar analysis. The two closely related species utilised the xylan in different ways, and differently from their use of wheat arabinoxylan. The growth of Bacteroides species on other plant xylans having differing chemical structures was also investigated. Novel xylans expand the choice of potential prebiotics that could be used to correct bowel dysbioses. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1374 / 1382

页数：9

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