木薯淀粉介紹

木薯淀粉介紹第一頁，共十頁，編輯于2023年，星期日Cassava,isalsocalledmaniocoryucca.Theplantgrowsinabushyform,upto2.4m(8ft)tall,withgreenish-yellowflowers.Therootsareupto8cm(3in)thickand91cm(36in)long.Therootscontainfrom20to32%ofstarchatmaturity.Earlymaturingcultivarsarereadyforharvestafter8-12month.Aboutcassava第二頁，共十頁，編輯于2023年，星期日

Twovarietiesofthecassavaareofeconomicvalue:thebitter,orpoisonous;andthesweet,ornon-poisonous.Thetoxinincassavaiscalled"linamarin".ItischemicallysimilartosugarbutwithaCNionattached.Justafewpiecesofcassavarootscontainafataldoseofpoison.第三頁，共十頁，編輯于2023年，星期日DryingSettlingordewateringCassava

starchPeelingFiltering/screeingWashingCassavarootMixingwithwater

Starchwashing

SettingGrating/raspingMillingSimpleprocessforcassavastarchproduction

第四頁，共十頁，編輯于2023年，星期日

Starchisoneofthemostabundantsubstancesinnature,arenewableandalmostunlimitedresource.

Cassavastarchisanimportantsourceofenergyforhumansandanimalsasfood,andhasmanyremarkablecharacteristics,includinghighpasteviscosity,highpasteclarity,andhighfreeze-thawstability,whichareadvantageoustomanyindustriesasarawmaterial,suchaspaper,textiles,adhesives,confectionery,pharmaceuticals,andbuildingmaterials.Application第五頁，共十頁，編輯于2023年，星期日Therootinpowderformisusedtopreparefarinha,amealusedtomakethincakessometimescalledcassavabread.ThestarchofcassavayieldsaproductcalledBrazilianarrowroot.Asfood1

第六頁，共十頁，編輯于2023年，星期日Paperindustry

Inthepaperandboardindustries,starchisusedinlargequantitiesatthreepointsduringthemanufacturingprocess:

Ⅰ.attheendofthewettreatment,whenthebasiccellulosefiberisbeatentothedesiredpulptoincreasethestrengthofthefinishedpaperandtoimpartbodyandresistancetoscuffingandfolding;

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

Ⅲ.inthecoatingoperation,whenapigmentcoatingisrequiredforpaper,starchactsasacoatingagentandasanadhesive.2

第七頁，共十頁，編輯于2023年，星期日TextileindustryInthetextileindustry,starchisusedinthreemainareas:sizing,finishingandprinting.

Andapproximately80%ofthestarchusedintextilesisusedinsizing.

3

第八頁，共十頁，編輯于2023年，星期日Adhesivesindustry4

Cassavastarchadhesivesaremoreviscousandsmootherworking.Theyarefluid,stablegluesofneutral