CAJ | 학술논문

采用双氧水为氧化剂,CuSO4等为催化剂,玉米原淀粉为原料,制备了玉米H2O2氧化淀粉,并分析比较了双氧水在有催化剂和无催化剂条件下的氧化程度,对所制备氧化淀粉的性能进行测定和分析。结果显示,以CuSO4为催化剂、中性条件下H2O2的催化作用最强,其制得的玉米氧化淀粉羧基含量为0.45%,透光率高为82%,产品两周内不凝沉。
채용쌍양수위양화제,CuSO4등위최화제,옥미원정분위원료,제비료옥미H2O2양화정분,병분석비교료쌍양수재유최화제화무최화제조건하적양화정도,대소제비양화정분적성능진행측정화분석。결과현시,이CuSO4위최화제、중성조건하H2O2적최화작용최강,기제득적옥미양화정분최기함량위0.45%,투광솔고위82%,산품량주내불응침。
The oxidized starch has been prepared from cornstarch with H2O2 as oxidant and CuSO4,FeSO4 as catalysts,and a detailed characterization has been performed for the productions.As a further analysis,the level of oxidation of oxidized starch with or without catalysts was compared.The results showed that the catalytic effect of CuSO4 on H2O2 in neutral condition was the best,the content of carboxyl group and the transmission ratio in the resulted oxidized starch was 0.45 % and 82 % respectively,and there was no clear retrogradation within two weeks.