AI Article Synopsis
- The study focuses on modifying rice starch using octenyl succinic anhydride (OSA) and dynamic high-pressure microfluidization (DHPM).
- DHPM pretreatment improves the degree of substitution, alters the starch's morphology and crystallinity, leading to enhanced peak viscosity and lower pasting temperature.
- The results indicate that DHPM treatment makes starch more suitable for chemical modifications, improving its emulsifying properties and stability.
Article 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.
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| http://dx.doi.org/10.1016/j.carbpol.2018.03.103 | DOI Listing |
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