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| Physicochemical property of glucose glycosylated zein film and its application in capsule shells |
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| DOI： |
| KeyWord:zein glycosylation glucose physicochemical property |
| FundProject:黑龙江省教育厅基本业务专项“粮头食尾”项目（LTSW201701）；黑龙江省省属高等学校基本科研业务费科研项目（植物性食品加工技术特色学科专项）（YSTSXK 201825）；黑龙江省教育厅基本科研业务费科研项目-校地合作项目（135309214） |
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| Abstract: |
| The zein was glycosylated by glucose and the film forming process was optimized with tensile strength as indicator.Zein film and zein-glucose film were characterized by SEM，FT-IR and DSC.The results showed that the optimal preparation conditions of glucose glycosylated zein film were obtained as follows: mass ratio of glucose to zein 1∶ 10, ultrasonic power 450 W and reaction time 30 min.Under these conditions, the tensile strength of zein-glucose film was 34.06 MPa, and the degree of graft was 63.05%.Zein was grafted with glucose by covalent bonds, and the structure of the product was more stable.Zein-glucose film was more smoothly compared with zein film and the sags and bulges almost disappeared. The thermal denaturation temperature of zein-glucose film increased from 157.95 ℃ before glucose glycosylation to 16426 ℃, and the thermal stability of film was improved.The basic indicators of the zein-glucose capsules met the requirements of Pharmacopoeia of the Peoples Republic of China (2015 edition). |
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