EurFoodResTechnol2000)211:336±341Springer-Verlag2000ORIGINALPAPERNuriaGrigelmo-Miguel´OlgaMartín-BellosoThequalityofpeachjamsstabilizedwithpeachdietaryfiberReceived:11October1999/Revisedversion:21January2000AbstractThequalityofpeachjamswithpeachdie-countries,e.g.constipation,diverticulitisandcanceroftaryfiberDF)asthickenerwasevaluated.Peachthelargebowel[3].Otherchronicdisordersassociatedjamswithsolublesolidscontentsofupto40,45,50withalackofDFincludeobesity,cardiovasculardis-and55Brixwithtotalorpartialsubstitutionofcom-easeanddiabetes[4,5].mercialamidatedpectinbypeachDFwerestudied.TherecommendedofDFintakeforadultsisTheuronicacidcontentspectinsubstances)inthe30±45g/day[6±9]butthecurrentconsumptionofDFjamformulationswere0,25,50,75and100%frominWesternsocietiesisabout20g/day[10].Toencour-peachDFwiththeresiduefromthecommercialpec-agepeopletoconsumetherecommendedamountoftin.Jamcolorwasnotaffectedbytheincorporationoffiber,aconsensusamonghealthorganizationssug-DFbecauseboththeDFandthepurØecamefromgestedanincreasedconsumptionoffruit,vegetables,peach.Peachjamsshowedapseudoplasticflowbehav-driedbeans,peasandwholegrains[11].However,ior,whichfittedwelltothepower-lawmodel,andtheachievingthisincreasewithoutamajorchangeindie-viscosityofjamsincreasedwiththeDFcontent.Fromtaryhabitsisdifficultandthereforeproductsfortifiedasensorialpointofview,highpeachDFjamswereaswithDFareconstantlybeingproduced.acceptableasconventionaljams.TheannualproductionofpeachfruitinSpainwasabout800metrictonsintheperiod1990±1996[12]KeywordsDietaryfiber´Jam´Thickener´Peachandapproximately17%ofthisamountwasprocessedtoobtainjuice.Theresultingbagasse,whichisaccu-mulatedintheprocessingplants,maybeusedasaIntroductiongoodsourceofDF[13].TheutilizationofthisDFasathickenerinpeachjamsresultedinabetteruseofDietaryfiberDF)isdefinedasthenon-digestiblethefruitaswellastherevitalisationofthefruittrans-fractionoffoodconsistingofnon-starchpolysacchar-formationindustry.idesandlignin[1].Thepol