Dynamic high-pressure microfluidization assisting octenyl succinic anhydride modification of rice starch

Yu-Ting Li; Ri-Si Wang; Rui-Hong Liang; Jun Chen; Xiao-Hong He; Rui-Yun Chen; Wei Liu; Cheng-Mei Liu

doi:10.1016/j.carbpol.2018.03.103

Dynamic high-pressure microfluidization assisting octenyl succinic anhydride modification of rice starch

Carbohydr Polym. 2018 Aug 1:193:336-342. doi: 10.1016/j.carbpol.2018.03.103. Epub 2018 Apr 3.

Authors

Yu-Ting Li¹, Ri-Si Wang², Rui-Hong Liang¹, Jun Chen³, Xiao-Hong He¹, Rui-Yun Chen¹, Wei Liu¹, Cheng-Mei Liu⁴

Affiliations

¹ State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China.
² State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China; School of Economic Management, Jiangxi Tourism Business Vocational College, Nanchang, 330100, China.
³ State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China. Electronic address: chenjun@ncu.edu.cn.
⁴ State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China. Electronic address: liuchengmei@ncu.edu.cn.

PMID: 29773389
DOI: 10.1016/j.carbpol.2018.03.103

Abstract

Octenyl succinic anhydride (OSA) modified starch is widely used in food industries. In this study, rice starch (RS) was pretreated by dynamic high-pressure microfluidization (DHPM) and subsequently modified by OSA. The influence of DHPM on OSA modification of rice starch was investigated. Results showed that DHPM pretreatment enhanced the degree of substitution by changing the morphology and crystallinity of rice starch. Compared with the rice starch modified by OSA without DHPM pretreatment (OSA-RS), the DHPM-pretreated OSA starch (DHPM-OSA-RS) presented higher peak viscosity and lower pasting temperature. DHPM-OSA-RS also exhibited better emulsifying activity and emulsion stability. This study suggested that DHPM will provide an opportunity to change the physicochemical properties of starch, with the resulting starch being more suitable for chemical modification.

Keywords: Dynamic high-pressure microfluidization; Modification; Octenyl succinic anhydride; Physicochemical properties; Rice starch.