安徽农学通报
安徽農學通報
안휘농학통보
AUHUI AGRICULTURAL SCIENCE BULLETIN
2015年
2期
79-82
,共4页
于雷%董其云%张华%张连富%金明亭
于雷%董其雲%張華%張連富%金明亭
우뢰%동기운%장화%장련부%금명정
糯米淀粉%交联羧甲基%性质
糯米澱粉%交聯羧甲基%性質
나미정분%교련최갑기%성질
Glutinous rice starch%Cross-linked Carboxymethyl%Property
以糯米淀粉为原料,先以环氧氯丙烷交联处理,再以氯乙酸进行羧甲基化反应,合成了交联羧甲基糯米淀粉。确定制备交联羧甲基糯米淀粉的最佳工艺条件为:糯米淀粉∶NaOH∶氯乙酸用量=1.00∶0.48∶0.44, pH6.5,55℃,4h,合成0.806取代度交联羧甲基糯米淀粉。交联羧甲基糯米淀粉的粘度增大,膨胀凝固性、热稳定性、透明度得到改善。
以糯米澱粉為原料,先以環氧氯丙烷交聯處理,再以氯乙痠進行羧甲基化反應,閤成瞭交聯羧甲基糯米澱粉。確定製備交聯羧甲基糯米澱粉的最佳工藝條件為:糯米澱粉∶NaOH∶氯乙痠用量=1.00∶0.48∶0.44, pH6.5,55℃,4h,閤成0.806取代度交聯羧甲基糯米澱粉。交聯羧甲基糯米澱粉的粘度增大,膨脹凝固性、熱穩定性、透明度得到改善。
이나미정분위원료,선이배양록병완교련처리,재이록을산진행최갑기화반응,합성료교련최갑기나미정분。학정제비교련최갑기나미정분적최가공예조건위:나미정분∶NaOH∶록을산용량=1.00∶0.48∶0.44, pH6.5,55℃,4h,합성0.806취대도교련최갑기나미정분。교련최갑기나미정분적점도증대,팽창응고성、열은정성、투명도득도개선。
Cross-linking carboxymethyl double modified starch from glutinous rice was prepared by the gluti?nous rice starch,first crosslinking treatment by epichlorohydrin,and then carboxymethylation reaction by chloroacetic acid. The optimum prepare conditions of double modified starch from glutinous rice were deter?minate as:starch:NaOH:ClCH2COOH=1.00∶0.48∶0.44(g/g),reaction pH6.5,55℃,4h. The DS was about 0.806 under this condition. Modified starch viscosity increased,swelling coagulation,thermal stability and transparency were improved.