Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley Bran

In this study, airflow impact milling (AFIM) with different intensity was utilized to mill coarse highland barley bran (CHB) in order to investigate the effects of particle size on the structure, physicochemical, and functional characteristics of the bran. Medium highland barley bran (MHB) with an a...

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Main Authors: Tong WANG, Xueqing WANG, Yaning TIAN, Jingjing YANG, Bin DANG, Xiaogang SHEN, Fengzhong WANG, Lili WANG
Format: Article
Language:zho
Published: The editorial department of Science and Technology of Food Industry 2025-02-01
Series:Shipin gongye ke-ji
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Online Access:http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024010327
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author Tong WANG
Xueqing WANG
Yaning TIAN
Jingjing YANG
Bin DANG
Xiaogang SHEN
Fengzhong WANG
Lili WANG
author_facet Tong WANG
Xueqing WANG
Yaning TIAN
Jingjing YANG
Bin DANG
Xiaogang SHEN
Fengzhong WANG
Lili WANG
author_sort Tong WANG
collection DOAJ
description In this study, airflow impact milling (AFIM) with different intensity was utilized to mill coarse highland barley bran (CHB) in order to investigate the effects of particle size on the structure, physicochemical, and functional characteristics of the bran. Medium highland barley bran (MHB) with an average particle size of 69.04 µm, fine highland barley bran (FHB) with a particle size of 58.85 µm, and ultrafine highland barley bran (UHB) with a particle size of 32.04 µm were obtained. These parameters of four samples were then analyzed in terms of particle size distribution, microstructure, physicochemical composition, pore characteristics, and functional properties. The results indicated that as the particle size of highland barley bran decreased, a portion of insoluble dietary fiber (IDF) transformed into soluble dietary fiber (SDF), leading to an increase in the proportion of SDF in the total dietary fiber from 7.18% (CHB) to 8.50% (UHB). Microscopic and pore characteristic studies revealed that with the reduction in particle size, the packing state of highland barley bran became more compact, and the micro-pores ranging from 50 nm to 10 µm gradually dominated the bran's pore structure, increasing from 31% in the CHB group to 69% in the UHB group. The changes in composition and structure of the bran influenced its water-holding capacity, oil-holding capacity, and other hydration properties. Compared to CHB, UHB exhibited a reduction of 21% in water-holding capacity and 7.64% in oil-holding capacity. In vitro glucose adsorption experiments demonstrated that as the particle size decreased, highland barley bran exhibited enhanced adsorption ability and inhibition of diffusion for high concentrations of glucose. In conclusion, airflow impact milling, a physical modification, effectively reduced the particle size distribution of highland barley bran and significantly altered its chemical composition, microstructure, pore structure, and particle packing state, thereby affecting its physicochemical and functional characteristics.
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publisher The editorial department of Science and Technology of Food Industry
record_format Article
series Shipin gongye ke-ji
spelling doaj-art-e8e650fb9b4d4ab481a65c14b2e05f7b2025-01-21T07:24:08ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062025-02-0146310110910.13386/j.issn1002-0306.20240103272024010327-3Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley BranTong WANG0Xueqing WANG1Yaning TIAN2Jingjing YANG3Bin DANG4Xiaogang SHEN5Fengzhong WANG6Lili WANG7Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, ChinaQinghai Academy of Agricultural and Forestry Sciences, Qinghai Tibetan Plateau Agricultural Processing Key Laboratory, Xining 810016, ChinaShangdong Yuhuang Grain & Oil Food Co., Ltd., Linyi 276600, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, ChinaInstitute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-product Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, ChinaIn this study, airflow impact milling (AFIM) with different intensity was utilized to mill coarse highland barley bran (CHB) in order to investigate the effects of particle size on the structure, physicochemical, and functional characteristics of the bran. Medium highland barley bran (MHB) with an average particle size of 69.04 µm, fine highland barley bran (FHB) with a particle size of 58.85 µm, and ultrafine highland barley bran (UHB) with a particle size of 32.04 µm were obtained. These parameters of four samples were then analyzed in terms of particle size distribution, microstructure, physicochemical composition, pore characteristics, and functional properties. The results indicated that as the particle size of highland barley bran decreased, a portion of insoluble dietary fiber (IDF) transformed into soluble dietary fiber (SDF), leading to an increase in the proportion of SDF in the total dietary fiber from 7.18% (CHB) to 8.50% (UHB). Microscopic and pore characteristic studies revealed that with the reduction in particle size, the packing state of highland barley bran became more compact, and the micro-pores ranging from 50 nm to 10 µm gradually dominated the bran's pore structure, increasing from 31% in the CHB group to 69% in the UHB group. The changes in composition and structure of the bran influenced its water-holding capacity, oil-holding capacity, and other hydration properties. Compared to CHB, UHB exhibited a reduction of 21% in water-holding capacity and 7.64% in oil-holding capacity. In vitro glucose adsorption experiments demonstrated that as the particle size decreased, highland barley bran exhibited enhanced adsorption ability and inhibition of diffusion for high concentrations of glucose. In conclusion, airflow impact milling, a physical modification, effectively reduced the particle size distribution of highland barley bran and significantly altered its chemical composition, microstructure, pore structure, and particle packing state, thereby affecting its physicochemical and functional characteristics.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024010327highland barley branparticle sizepore characteristicshydration propertiesin vitro hypoglycemic capacity
spellingShingle Tong WANG
Xueqing WANG
Yaning TIAN
Jingjing YANG
Bin DANG
Xiaogang SHEN
Fengzhong WANG
Lili WANG
Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley Bran
Shipin gongye ke-ji
highland barley bran
particle size
pore characteristics
hydration properties
in vitro hypoglycemic capacity
title Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley Bran
title_full Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley Bran
title_fullStr Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley Bran
title_full_unstemmed Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley Bran
title_short Effect of Particle Size on Structural, Physicochemical and Functional Properties of Highland Barley Bran
title_sort effect of particle size on structural physicochemical and functional properties of highland barley bran
topic highland barley bran
particle size
pore characteristics
hydration properties
in vitro hypoglycemic capacity
url http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024010327
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AT jingjingyang effectofparticlesizeonstructuralphysicochemicalandfunctionalpropertiesofhighlandbarleybran
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