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- Title
The Effect of Different Milling Methods on the Physicochemical and In Vitro Digestibility of Rice Flour.
- Authors
Tian, Yaning; Ding, Lan; Liu, Yonghui; Shi, Li; Wang, Tong; Wang, Xueqing; Dang, Bin; Li, Linglei; Gou, Guoyuan; Wu, Guiyun; Wang, Fengzhong; Wang, Lili
- Abstract
Preparation methods have been found to affect the physical and chemical properties of rice. This study prepared Guichao rice flour with wet, dry, semi-dry, and jet milling techniques. Differences in the particle size distribution of rice flour were investigated in order to assess their impact on pasting, thermal, gel, starch digestibility, and crystalline structure using an X-ray diffractometer (XRD) and a Rapid Visco Analyzer (RVA) across in vitro digestibility experiments. The results showed that semi-dry-milled rice flour (SRF) and wet-milled rice flour (WRF) were similar in damaged starch content, crystalline structure, and gelatinization temperature. However, compared with dry-milled rice flour (DRF) and jet-milled rice flour (JRF), SRF had less damaged starch, a higher absorption enthalpy value, and a higher gelatinization temperature. For starch digestibility, the extended glycemic index (eGI) values of WRF (85.30) and SRF (89.97) were significantly lower than those of DRF (94.47) and JRF (99.27). In general, the physicochemical properties and starch digestibility of WRF and SRF were better than those of DRF and JRF. SRF retained the advantages of WRF while avoiding the high energy consumption, high water consumption, and microbial contamination disadvantages of WRF and was able to produce better rice flour-associated products.
- Subjects
RICE flour; RICE products; GLYCEMIC index; PARTICLE size distribution; MICROBIAL contamination; RICE
- Publication
Foods, 2023, Vol 12, Issue 16, p3099
- ISSN
2304-8158
- Publication type
Article
- DOI
10.3390/foods12163099