木薯淀粉介绍

木薯淀粉介绍第1页，课件共10页，创作于2023年2月Cassava,isalsocalledmaniocoryucca.Theplantgrowsinabushyform,upto2.4m(8ft)tall,withgreenish-yellowflowers.Therootsareupto8cm(3in)thickand91cm(36in)long.Therootscontainfrom20to32%ofstarchatmaturity.Earlymaturingcultivarsarereadyforharvestafter8-12month.Aboutcassava第2页，课件共10页，创作于2023年2月

Twovarietiesofthecassavaareofeconomicvalue:thebitter,orpoisonous;andthesweet,ornon-poisonous.Thetoxinincassavaiscalled"linamarin".ItischemicallysimilartosugarbutwithaCNionattached.Justafewpiecesofcassavarootscontainafataldoseofpoison.第3页，课件共10页，创作于2023年2月DryingSettlingordewateringCassava

starchPeelingFiltering/screeingWashingCassavarootMixingwithwater

Starchwashing

SettingGrating/raspingMillingSimpleprocessforcassavastarchproduction

第4页，课件共10页，创作于2023年2月

Starchisoneofthemostabundantsubstancesinnature,arenewableandalmostunlimitedresource.

Cassavastarchisanimportantsourceofenergyforhumansandanimalsasfood,andhasmanyremarkablecharacteristics,includinghighpasteviscosity,highpasteclarity,andhighfreeze-thawstability,whichareadvantageoustomanyindustriesasarawmaterial,suchaspaper,textiles,adhesives,confectionery,pharmaceuticals,andbuildingmaterials.Application第5页，课件共10页，创作于2023年2月Therootinpowderformisusedtopreparefarinha,amealusedtomakethincakessometimescalledcassavabread.ThestarchofcassavayieldsaproductcalledBrazilianarrowroot.Asfood1

第6页，课件共10页，创作于2023年2月Paperindustry

Inthepaperandboardindustries,starchisusedinlargequantitiesatthreepointsduringthemanufacturingprocess:

Ⅰ.attheendofthewettreatment,whenthebasiccellulosefiberisbeatentothedesiredpulptoincreasethestrengthofthefinishedpaperandtoimpartbodyandresistancetoscuffingandfolding;

Ⅱ.atthesizepress,whenthepapersheethasbeenformedandpartiallydried,starchisusuallyaddedtooneorbothsidesofthepapersheettoimprovethefinish,appearance,strength,andprintingproperties;

Ⅲ.inthecoatingoperation,whenapigmentcoatingisrequiredforpaper,starchactsasacoatingagentandasanadhesive.2

第7页，课件共10页，创作于2023年2月TextileindustryInthetextileindustry,starchisusedinthreemainareas:sizing,finishingandprinting.

Andapproximately80%ofthestarchusedintextilesisusedinsizing.

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第8页，课件共10页，创作于2023年2月Adhesivesindustry4

Cassavastarchadhesivesaremoreviscousandsmootherworking.Theyarefluid,stablegluesofneutralpH