Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of Biscuits

In this study, the effects of starch emulsion concentration, autoclave time and autoclave temperature on the preparation of glutinous millet resistant starch (GMRS) were systematically investigated by using the yield of GMRS as the detection index. Then, the physicochemical properties and microstruc...

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Main Authors: Sumin ZHANG, Yan CUI, Xiaowen WANG
Format: Article
Language:zho
Published: The editorial department of Science and Technology of Food Industry 2023-03-01
Series:Shipin gongye ke-ji
Subjects:
Online Access:http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022060017
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author Sumin ZHANG
Yan CUI
Xiaowen WANG
author_facet Sumin ZHANG
Yan CUI
Xiaowen WANG
author_sort Sumin ZHANG
collection DOAJ
description In this study, the effects of starch emulsion concentration, autoclave time and autoclave temperature on the preparation of glutinous millet resistant starch (GMRS) were systematically investigated by using the yield of GMRS as the detection index. Then, the physicochemical properties and microstructure of glutinous millet starch (GMS) before and after autoclave treatment were further analyzed and compared. The influence of different ratio of GMRS addition on the texture and GI value of biscuits were studied. The results showed that the optimum conditions for the preparation of GMRS by autoclave method were starch emulsion concentration of 10%, autoclave time of 40 min, and autoclave temperature of 120 ℃. Under these conditions, the yield of GMRS was 30.64%. Further detection indicated that compared with GMS, the light transmittance, solubility and swelling power of GMRS were decreased significantly. Unlike GMS, which had small particle size and relatively smooth surface, the morphology of GMRS prepared by autoclave method was flaky and rough surface with pore like depression. The data of the further experiments, in which GMRS was used to replace part of the flour to make biscuits, showed that with the increasing of the amount of GMRS, the shear force of biscuits increased, and the GI value decreased significantly, the biscuits could be transformed from high GI value food to medium GI value food, meeting the needs of consumers for low GI value food.
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spelling doaj.art-902a10eace9a429b8ff22d50e9d936682023-03-13T08:20:01ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062023-03-0144621922510.13386/j.issn1002-0306.20220600172022060017-6Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of BiscuitsSumin ZHANG0Yan CUI1Xiaowen WANG2College of Food Science and Engineering, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Food Science and Engineering, Shanxi Agricultural University, Jinzhong 030801, ChinaCollege of Food Science and Engineering, Shanxi Agricultural University, Jinzhong 030801, ChinaIn this study, the effects of starch emulsion concentration, autoclave time and autoclave temperature on the preparation of glutinous millet resistant starch (GMRS) were systematically investigated by using the yield of GMRS as the detection index. Then, the physicochemical properties and microstructure of glutinous millet starch (GMS) before and after autoclave treatment were further analyzed and compared. The influence of different ratio of GMRS addition on the texture and GI value of biscuits were studied. The results showed that the optimum conditions for the preparation of GMRS by autoclave method were starch emulsion concentration of 10%, autoclave time of 40 min, and autoclave temperature of 120 ℃. Under these conditions, the yield of GMRS was 30.64%. Further detection indicated that compared with GMS, the light transmittance, solubility and swelling power of GMRS were decreased significantly. Unlike GMS, which had small particle size and relatively smooth surface, the morphology of GMRS prepared by autoclave method was flaky and rough surface with pore like depression. The data of the further experiments, in which GMRS was used to replace part of the flour to make biscuits, showed that with the increasing of the amount of GMRS, the shear force of biscuits increased, and the GI value decreased significantly, the biscuits could be transformed from high GI value food to medium GI value food, meeting the needs of consumers for low GI value food.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022060017thermal-press processingresistant starchphysicochemical propertiesmicrostructurebiscuitsin vitro digestionglycemic index
spellingShingle Sumin ZHANG
Yan CUI
Xiaowen WANG
Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of Biscuits
Shipin gongye ke-ji
thermal-press processing
resistant starch
physicochemical properties
microstructure
biscuits
in vitro digestion
glycemic index
title Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of Biscuits
title_full Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of Biscuits
title_fullStr Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of Biscuits
title_full_unstemmed Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of Biscuits
title_short Preparation of Glutinous Millet Resistant Starch by Thermal-press Processing Method and the Effect of Its Addition Amount on the Texture and GI of Biscuits
title_sort preparation of glutinous millet resistant starch by thermal press processing method and the effect of its addition amount on the texture and gi of biscuits
topic thermal-press processing
resistant starch
physicochemical properties
microstructure
biscuits
in vitro digestion
glycemic index
url http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022060017
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AT xiaowenwang preparationofglutinousmilletresistantstarchbythermalpressprocessingmethodandtheeffectofitsadditionamountonthetextureandgiofbiscuits