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Nutrients 2019, 11(2), 371; https://doi.org/10.3390/nu11020371

Physicochemical Properties and Digestion of Lotus Seed Starch under High-Pressure Homogenization

1,2,3
,
1,2,3
,
4
and
1,2,3,*
1
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
2
Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
3
China-Ireland International Cooperation Centre for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, Fuzhou 350002, China
4
College of life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
*
Author to whom correspondence should be addressed.
Received: 24 November 2018 / Revised: 31 January 2019 / Accepted: 4 February 2019 / Published: 11 February 2019
(This article belongs to the Special Issue Starch Chemistry and Nutrition)
Full-Text   |   PDF [2667 KB, uploaded 15 February 2019]   |  

Abstract

Lotus seed starch (LS), dispersed (3%, w/v) in deionized water was homogenized (0–180 MPa) with high-pressure homogenization (HPH) for 15 min. The effects of HPH treatment on the physicochemical properties of the starch system were investigated. The properties were affected by HPH to various extents, depending on the pressure. These influences can be explained by the destruction of the crystalline and amorphous regions of pressurized LS. The short-range order of LS was reduced by HPH and starch structure C-type was transformed into B-type, exhibiting lower transition temperatures and enthalpy. The LS absorbed a great deal of water under HPH and rapidly swelled, resulting in increased swelling power, solubility and size distribution. It then showed “broken porcelain-like” morphology with reduced pasting properties. Digestion of pressurized LS complex investigated by a dynamic in vitro rat stomach–duodenum model showed higher digestion efficiency and the residues exhibited gradual damage in morphology. View Full-Text
Keywords: high-pressure homogenization treatment; physicochemical properties; DIVRSD-II model; digestion properties high-pressure homogenization treatment; physicochemical properties; DIVRSD-II model; digestion properties
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Guo, Z.; Zhao, B.; Chen, L.; Zheng, B. Physicochemical Properties and Digestion of Lotus Seed Starch under High-Pressure Homogenization. Nutrients 2019, 11, 371.

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