Structural changes of starch under different milling degrees affect the cooking and textural properties of rice

A long-term consumption of white rice increases the risk of T2D. Finding an appropriate milling degree (MD) of rice balancing nutrition and palatability benefits public health. This study investigated effects of MD-0 s, 5 s, 60 s on morphological, cooking and textural properties of rice. Texture pro...

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Main Authors: Yu Zhang, Fan Li, Kai Huang, Sen Li, Hongwei Cao, Jian Xie, Xiao Guan
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Food Chemistry: X
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S259015752300069X
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author Yu Zhang
Fan Li
Kai Huang
Sen Li
Hongwei Cao
Jian Xie
Xiao Guan
author_facet Yu Zhang
Fan Li
Kai Huang
Sen Li
Hongwei Cao
Jian Xie
Xiao Guan
author_sort Yu Zhang
collection DOAJ
description A long-term consumption of white rice increases the risk of T2D. Finding an appropriate milling degree (MD) of rice balancing nutrition and palatability benefits public health. This study investigated effects of MD-0 s, 5 s, 60 s on morphological, cooking and textural properties of rice. Texture profile analysis showed that milling decreased hardness, while increased adhesiveness of rice. SEM images showed that milling induced notches and structural damage, which facilitated gelatinization of rice determined by DSC. Leached starch was further analyzed by size exclusion chromatography and chain-length distribution. Pearson correlation analysis revealed that milling induced more leached shot-chain amylose and long-chain amylopectin, which decreased hardness and increased adhesiveness of cooked rice. Collectively, milling-induced changes of starch gelatinization and fine structure of leached starch were decisive factors of rice texture. Moderate processing improved the texture of brown rice and maintained nutrients. This would provide guidance for the health industry of whole grains.
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spelling doaj.art-1b3796b6adf44600b868d75e9c08f20f2023-03-17T04:34:32ZengElsevierFood Chemistry: X2590-15752023-03-0117100627Structural changes of starch under different milling degrees affect the cooking and textural properties of riceYu Zhang0Fan Li1Kai Huang2Sen Li3Hongwei Cao4Jian Xie5Xiao Guan6School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai 200093, ChinaSchool of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai 200093, ChinaSchool of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai 200093, ChinaSchool of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai 200093, ChinaChina Grain Wuhan Scientific Research & Design Institute Co. Ltd., Wuhan 430079, ChinaSchool of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai 200093, China; Corresponding author.A long-term consumption of white rice increases the risk of T2D. Finding an appropriate milling degree (MD) of rice balancing nutrition and palatability benefits public health. This study investigated effects of MD-0 s, 5 s, 60 s on morphological, cooking and textural properties of rice. Texture profile analysis showed that milling decreased hardness, while increased adhesiveness of rice. SEM images showed that milling induced notches and structural damage, which facilitated gelatinization of rice determined by DSC. Leached starch was further analyzed by size exclusion chromatography and chain-length distribution. Pearson correlation analysis revealed that milling induced more leached shot-chain amylose and long-chain amylopectin, which decreased hardness and increased adhesiveness of cooked rice. Collectively, milling-induced changes of starch gelatinization and fine structure of leached starch were decisive factors of rice texture. Moderate processing improved the texture of brown rice and maintained nutrients. This would provide guidance for the health industry of whole grains.http://www.sciencedirect.com/science/article/pii/S259015752300069XDegree of millingHardnessAdhesivenessTextureModerate processing
spellingShingle Yu Zhang
Fan Li
Kai Huang
Sen Li
Hongwei Cao
Jian Xie
Xiao Guan
Structural changes of starch under different milling degrees affect the cooking and textural properties of rice
Food Chemistry: X
Degree of milling
Hardness
Adhesiveness
Texture
Moderate processing
title Structural changes of starch under different milling degrees affect the cooking and textural properties of rice
title_full Structural changes of starch under different milling degrees affect the cooking and textural properties of rice
title_fullStr Structural changes of starch under different milling degrees affect the cooking and textural properties of rice
title_full_unstemmed Structural changes of starch under different milling degrees affect the cooking and textural properties of rice
title_short Structural changes of starch under different milling degrees affect the cooking and textural properties of rice
title_sort structural changes of starch under different milling degrees affect the cooking and textural properties of rice
topic Degree of milling
Hardness
Adhesiveness
Texture
Moderate processing
url http://www.sciencedirect.com/science/article/pii/S259015752300069X
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