Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/7858
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dc.contributor.authorAdeleye, Olufunmilayoen
dc.contributor.authorOloghobo, Anthony Den
dc.contributor.authorIji, Paulen
dc.contributor.authorAdebiyi, Olufemien
dc.contributor.authorMoiforay, Shekuen
local.source.editorEditor(s): Eric Tielkesen
dc.date.accessioned2011-06-30T09:52:00Z-
dc.date.issued2010-
dc.identifier.citationWorld Food System - A contribution from Europe: Book of Abstracts, p. 454-454en
dc.identifier.isbn9783980168670en
dc.identifier.urihttps://hdl.handle.net/1959.11/7858-
dc.description.abstractAn 'in vitro' experiment was conducted to screen ten carbohydrate-rich substrates for the following prebiotic characteristics; 1. resistance to gastric acidity, enzymatic hydrolysis and gastrointestinal absorption, and 2. fermentation by intestinal microflora. The substrates where starches and starch by-products of different origins. In the first study, the test substrates were subjected to a 2-step digestion in pepsin/HCl solution for 1.5 hours followed by incubation in potassium phosphate buffer containing pancreatin and amylase for 1,2,3 and 6 hours while in the second study, the cumulative gas production technique was used to study the fermentabilities of the test substrates using bufferred caecal inoculum from 28-day old broiler chicks fed a standard diet free of antibiotics and any of the test substrates. Gas production, fermentation kinetics, pH, ammonia and organic matter loss (OMloss) were measured. The total starch content of the substrates ranged between 57.5% for sweet potato meal and 84.4% for sago starch. While 'in vitro' foregut digestion measured at the end study 1 showed values of 95.04 %, 50.46 %, 22.36%, 42.47%, 82.7%, 68.58%, 42.69%, 54.54 %, 50.88% and 50.8 %, 'in vitro' organic matter disappearance measured at the end of study 2 showed values of 96.58 %, 89.26%, 28.18 %, 53.42%, 92.49 %, 98.28 %, 98.28 %, 92.43 %, 81.98% and 67.13% for sago starch, sweet potato starch, arrowroot starch, rice starch, tapioca, cornstarch, cassava pulp and sweet potato meal respectively. The difference between these values represented estimates of proportion of the substrates that would be fermented in the hindgut 'in vivo'. Results from studies 1 and 2 showed that all the substrates tested were resistant to acidity and enzymatic hydrolysis in the foregut and fermentable by intestinal microflora to varying degrees. Tapioca, sweet potato starch, cassava pulp and wheat starch had the highest resistance to gastric acidity, enzymatic hydrolysis and gastrointestinal absorption and the top five fermentability by gastrointestinal microflora and thus were selected for subsequent studies.en
dc.languageenen
dc.publisherGerman Institute for Agriculture in the Tropics and Subtropicsen
dc.relation.ispartofWorld Food System - A contribution from Europe: Book of Abstractsen
dc.titleA Two-step 'in vitro' Examination of Some Carbohydrate-rich Substrates for Possible Prebiotic Potentialen
dc.typeConference Publicationen
dc.relation.conferenceTropentag 2010: International Research on Food Security, Natural Resource Management and Rural Developmenten
dc.subject.keywordsAnimal Nutritionen
local.contributor.firstnameOlufunmilayoen
local.contributor.firstnameAnthony Den
local.contributor.firstnamePaulen
local.contributor.firstnameOlufemien
local.contributor.firstnameShekuen
local.subject.for2008070204 Animal Nutritionen
local.subject.seo2008830309 Poultryen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailpiji@une.edu.auen
local.output.categoryE3en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20110329-160640en
local.date.conference14th - 16th September, 2010en
local.conference.placeTropentag, Zurichen
local.publisher.placeWitzenhausen, Germanyen
local.format.startpage454en
local.format.endpage454en
local.contributor.lastnameAdeleyeen
local.contributor.lastnameOloghoboen
local.contributor.lastnameIjien
local.contributor.lastnameAdebiyien
local.contributor.lastnameMoiforayen
dc.identifier.staffune-id:oadeleyeen
dc.identifier.staffune-id:pijien
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:8029en
dc.identifier.academiclevelAcademicen
local.title.maintitleA Two-step 'in vitro' Examination of Some Carbohydrate-rich Substrates for Possible Prebiotic Potentialen
local.output.categorydescriptionE3 Extract of Scholarly Conference Publicationen
local.relation.urlhttp://www.tropentag.de/2010/proceedings/proceedings.pdfen
local.conference.detailsTropentag 2010: International Research on Food Security, Natural Resource Management and Rural Development, Tropentag, Zurich, 14th - 16th September, 2010en
local.search.authorAdeleye, Olufunmilayoen
local.search.authorOloghobo, Anthony Den
local.search.authorIji, Paulen
local.search.authorAdebiyi, Olufemien
local.search.authorMoiforay, Shekuen
local.uneassociationUnknownen
local.year.published2010en
local.date.start2010-09-14-
local.date.end2010-09-16-
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