Page 200 - 《精细化工》2023年第3期
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第 40 卷第 3 期 精 细 化 工 Vol.40, No.3
20 23 年 3 月 FINE CHEMICALS Mar. 2023
淀粉化学品
水溶性辛烯基琥珀酸淀粉酯的三偏磷酸钠改性
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张馨月 1,2 ,仇 丹 ,王亚娟 ,沈可欣 ,肖志刚 ,邵 平
(1. 沈阳师范大学 粮食学院,辽宁 沈阳 110034;2. 宁波工程学院 材料与化学工程学院,浙江 宁波
315211;3. 浙江工业大学 食品科学与工程学院,浙江 杭州 310014)
摘要:以酶解处理后的水溶性辛烯基琥珀酸糯玉米淀粉酯(简称 OSS)为原料,三偏磷酸钠为改性剂,制备了
改性 OSS 膜,以膜的抗拉强度为响应值,通过单因素和响应面实验优化了 OSS 膜的改性工艺,采用 31 PNMR
和 FTIR 对最优条件下制备的膜进行了表征。结果表明,在反应时间 5.8 h、pH 6.8、三偏磷酸钠用量为 OSS 质
量的 18%的最佳工艺条件下,改性 OSS 膜的抗拉强度为 2.19 MPa,比 OSS 膜提高了 69.77%。改性 OSS 膜断面
均匀,起始相变温度提高 14.6 ℃,归因于三偏磷酸钠和 OSS 间的氢键键合提高了 OSS 膜的性能。OSS 乳化负
载维生素 E 后再经三偏磷酸钠改性可有效提高乳化膜中维生素 E 的高温(60 ℃)贮藏稳定性。
关键词:辛烯基琥珀酸淀粉酯;三偏磷酸钠;改性;抗拉强度;响应面法;维生素 E;淀粉化学品
中图分类号:O636.12 文献标识码:A 文章编号:1003-5214 (2023) 03-0656-09
Trisodium trimetaphosphate modification of water-soluble
octenyl succinic anhydride starch
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ZHANG Xinyue , QIU Dan , WANG Yajuan , SHEN Kexin , XIAO Zhigang , SHAO Ping
(1. College of Grain Science and Technology, Shenyang Normal University, Shenyang 110034, Liaoning, China;
2. School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, Zhejiang, China;
3. College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China)
Abstract: Modified octenyl succinic anhydride waxy corn starch (OSS) film was prepared via sodium
trimetaphosphate modification of enzyme-hydrolyzed OSS. The modification process was optimized by
single-factor experiment and response surface methodology with tensile strength of film as response value,
and the structure of the modified OSS film obtained under the optimal conditions was characterized by
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PNMR and FTIR. The results showed that, under the optimal conditions of reaction time 5.8 h, pH 6.8,
trisodium trimetaphosphate 18% of OSS mass, the tensile strength of the modified OSS film was 2.19 MPa,
69.77% higher than that of the OSS film. Meanwhile, the modified OSS film displayed a more
homogeneous cross section with onset phase transition temperature increased by 14.6 ℃, which could be
attributed to the hydrogen bond formed between sodium trimetaphosphate and OSS. Moreover, it was found
that trisodium trimetaphosphate modification of OSS loaded with vitamin E could effectively improve the
film-forming property of the film and the storage stability of vitamin E in high temperature (60 ℃).
Key words: octenyl succinic anhydride modified starch; trisodium trimetaphosphate; modification; tensile
strength; response surface methodology; vitamin E; starch chemicals
辛烯基琥珀酸淀粉酯是由辛烯基琥珀酸酐 作为乳化剂、稳定剂而广泛应用于精细化工、食品、
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(OSA)和淀粉经酯化等反应而得到的一种两亲性 医药等领域 。一般商业辛烯基琥珀酸淀粉酯都是
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改性淀粉 ,具有良好的增稠、凝胶和分散性,可 淀粉酯化后再经水解、酶解等处理得到的,由于其
收稿日期:2022-07-04; 定用日期:2022-09-19; DOI: 10.13550/j.jxhg.20220618
基金项目:宁波市自然科学基金(2021J142)
作者简介:张馨月(1999—),女,硕士生,E-mail:1823031470@qq.com。联系人:仇 丹(1981—),男,教授,E-mail:qiudan_zju@
163.com;肖志刚(1972—),男,教授,E-mail:zhigang_xiao@126.com。