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Wu K, Li C, Li Z, Gu Z, Ban X, Hong Y, Cheng L, Kong H. Enzymatic modification lowers syneresis in corn starch gels during freeze-thaw cycles through 1,4-α-glucan branching enzyme. Int J Biol Macromol 2024; 269:132183. [PMID: 38723826 DOI: 10.1016/j.ijbiomac.2024.132183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
The current research in the food industry regarding enzymatic modification to enhance the freeze-thaw (FT) stability of starch is limited. The present study aimed to investigate the FT stability of normal corn starch (NCS) modified using 1,4-α-glucan branching enzyme (GBE) derived from Geobacillus thermoglucosidans STB02. Comprehensive analyses, including syneresis, scanning electron microscopy, and low-field nuclear magnetic resonance, collectively demonstrated the enhanced FT stability of GBE-modified corn starch (GT-NCS-30) in comparison to its native form. Its syneresis was 66.4 % lower than that of NCS after three FT cycles. Notably, GBE treatment induced changes in the pasting properties and thermal resistance of corn starch, while simultaneously enhancing the mechanical strength of the starch gel. Moreover, X-ray diffractograms and microstructural assessments of freeze-thawed gels indicated that GBE treatment effectively hindered the association of corn starch molecules, particularly amylose retrogradation. The enhanced FT stability of GBE-modified starch can be attributed to alterations in the starch structure induced by GBE. This investigation establishes a foundation for further exploration into the influence of GBE treatment on the FT stability of starch and provides a theoretical basis for further research in this area.
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Affiliation(s)
- Kunrong Wu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Caiming Li
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Institute of Future Food Technology, JITRI, Yixing 214200, China
| | - Zhaofeng Li
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Institute of Future Food Technology, JITRI, Yixing 214200, China
| | - Zhengbiao Gu
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiaofeng Ban
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yan Hong
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Li Cheng
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Haocun Kong
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Institute of Future Food Technology, JITRI, Yixing 214200, China.
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Zheng Y, Ma Y, Ukwatta RH, Xue F, Li C. Development of Novel Cornstarch Hydrogel-Based Food Coolant and its Characterization. Polymers (Basel) 2024; 16:569. [PMID: 38475253 DOI: 10.3390/polym16050569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024] Open
Abstract
The food, pharmaceutical, and supply transport storage chain is seeking coolants that come with plastic-free packaging, are nontoxic, environmentally friendly, robust, reusable, and reduce water waste. To meet this demand, a new food coolant based on cornstarch hydrogel was developed and tested using the regeneration method. This study investigated the reusability, water retention, rehydration, and surface cleanliness of the hydrogel, along with its application in freshness retention for fruits. The results of the gel strength and differential scanning calorimetry (DSC) analysis showed that the ideal concentration of cornstarch hydrogel was 8%. Freezing and thawing experiments demonstrated that the hydrogel had the potential to be used as a cooling medium for refrigerated fresh foods. Moreover, the gel strength, scanning electron microscopy images (SEM), DSC, and thermogravimetric analysis (TG) revealed that the freeze-thaw reuse only slightly affected its freezable water content and that its gel strength gradually increased during reuse. Water retention and rehydration tests showed that the hydrogels could be better preserved at -20 °C compared to 4 °C, and the water lost during reuse could be replenished through rehydration. The flexibility in terms of shape and size also allows the hydrogel ice to be used as a customized coolant for various food shapes, as demonstrated by preservation experiments. Additionally, washing the hydrogel after each use can result in a significant reduction in Escherichia coli, Salmonella, and Staphylococcus aureus concentrations by 3.03, 3.47, and 2.77 log CFU/hydrogel, respectively. Overall, the new cornstarch hydrogel coolant is a promising alternative to conventional ice, with the potential to serve as a food coolant.
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Affiliation(s)
- Yalu Zheng
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Yan Ma
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | | | - Feng Xue
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chen Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
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3
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Jia R, Cui C, Gao L, Qin Y, Ji N, Dai L, Wang Y, Xiong L, Shi R, Sun Q. A review of starch swelling behavior: Its mechanism, determination methods, influencing factors, and influence on food quality. Carbohydr Polym 2023; 321:121260. [PMID: 37739518 DOI: 10.1016/j.carbpol.2023.121260] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/18/2023] [Accepted: 08/02/2023] [Indexed: 09/24/2023]
Abstract
Swelling behavior involves the process of starch granules absorbing enough water to swell and increase the viscosity of starch suspension under hydrothermal conditions, making it one of the important aspects in starch research. The changes that starch granules undergo during the swelling process are important factors in predicting their functional properties in food processing. However, the factors that affect starch swelling and how swelling, in turn, affects the texture and digestion characteristics of starch-based foods have not been systematically summarized. Compared to its long chains, the short chains of amylose easily interact with amylopectin chains to inhibit starch swelling. Generally, reducing the swelling of starch could increase the strength of the gel while limiting the accessibility of digestive enzymes to starch chains, resulting in a reduction in starch digestibility. This article aims to conduct a comprehensive review of the mechanism of starch swelling, its influencing factors, and the relationship between swelling and the pasting, gelling, and digestion characteristics of starch. The role of starch swelling in the edible quality and nutritional characteristics of starch-based foods is also discussed, and future research directions for starch swelling are proposed.
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Affiliation(s)
- Ruoyu Jia
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Congli Cui
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Lin Gao
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Yang Qin
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao, Shandong Province 266109, China; Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying, Shandong Province 257300, China
| | - Na Ji
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao, Shandong Province 266109, China; Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying, Shandong Province 257300, China
| | - Lei Dai
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao, Shandong Province 266109, China; Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying, Shandong Province 257300, China
| | - Yanfei Wang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao, Shandong Province 266109, China; Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying, Shandong Province 257300, China
| | - Liu Xiong
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Rui Shi
- College of Food Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, China
| | - Qingjie Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao, Shandong Province 266109, China; Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying, Shandong Province 257300, China.
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Dos Santos JS, Biduski B, Colussi R, Pinto VZ, Dos Santos LR. Hydrogel properties of non-conventional starches from guabiju, pinhão, and uvaia seeds. Food Res Int 2023; 173:113243. [PMID: 37803556 DOI: 10.1016/j.foodres.2023.113243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 10/08/2023]
Abstract
The physicochemical properties of starch vary depending on the botanical sources, thereby influencing the gelatinisation/retrogradation properties and subsequently affecting the hydrogels characteristics. This study aimed to assess the influence of botanical sources influence on starch and hydrogel properties using non-conventional starch derived from guabiju, pinhão, and uvaia seeds. Hydrogels were prepared by starch gelatinisation followed by 6 h ageing period at room temperature (20 ± 2 °C) and subjected to five freeze-thaw cycles. Pinhão starch exhibited a higher viscosity peak and breakdown, along with a lower final viscosity and setback, compared to guabiju and uvaia starches. The significantly different pasting properties influenced the porous microstructure, water absorption (p-value: 0.01), and resistance of the hydrogels (p-value: 0.01). The guabiju starch hydrogels showed a uniform pore structure without cavities, whereas pinhão and uvaia starch hydrogels exhibited agglomerated and spongy pore structures. Furthermore, the guabiju starch hydrogel demonstrated the lowest water absorption (4.56 g/g) and the highest compression resistance (1448.50 g) among all the studied starch hydrogels. In contrast, the pinhão starch hydrogel showed the highest water absorption (7.43 g/; p-value: 0.01) among all studied starch hydrogels. The hardness of uvaia starch hydrogel did not differ significantly from the guabiju and pinhão starch hydrogel. The different non-conventional starches reveal important variations in the hydrogels characteristics. This provides insights into how amylose and amylopectin interact and present alternatives for using these unique starch-based hydrogels in diverse applications.
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Affiliation(s)
- Jucilene Sena Dos Santos
- Graduate Program in Food Science and Technology, University of Passo Fundo, BR 285, 99052-900 Passo Fundo, RS, Brazil.
| | - Bárbara Biduski
- Graduate Program in Food Science and Technology, University of Passo Fundo, BR 285, 99052-900 Passo Fundo, RS, Brazil; Food Quality and Sensory Science Department, Teagasc Food Research Centre Ashtown, Dublin D15 KN3K, Ireland.
| | - Rosana Colussi
- Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas, Pelotas, RS 96010-900, Brazil.
| | - Vania Zanella Pinto
- Graduate Program in Food Science and Technology, Universidade Federal da Fronteira Sul, Laranjeiras do Sul, PR 85301-970B, Brazil.
| | - Luciana Ruschel Dos Santos
- Graduate Program in Food Science and Technology, University of Passo Fundo, BR 285, 99052-900 Passo Fundo, RS, Brazil; Graduate Program in Bioexperimentation, University of Passo Fundo, BR 285, 99052-900 Passo Fundo, RS, Brazil.
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5
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Cui C, Jia Y, Sun Q, Yu M, Ji N, Dai L, Wang Y, Qin Y, Xiong L, Sun Q. Recent advances in the preparation, characterization, and food application of starch-based hydrogels. Carbohydr Polym 2022; 291:119624. [DOI: 10.1016/j.carbpol.2022.119624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 01/11/2023]
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6
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Insights into the formation and digestive properties of lotus seed starch-glycerin monostearate complexes formed by freeze-thaw pretreatment and microfluidization. Int J Biol Macromol 2022; 204:215-223. [PMID: 35104470 DOI: 10.1016/j.ijbiomac.2022.01.160] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/16/2022] [Accepted: 01/26/2022] [Indexed: 11/23/2022]
Abstract
The objective of this paper was to investigate the formation and digestive properties of lotus seed starch-glycerin monostearate complexes (LSG) formed by freeze-thaw pretreatment and microfluidization. The results showed that the preparation of LSG with six freeze-thaw cycles at 60 MPa had the highest complex index (69.92%). The formation of LSG led to the conversion of the crystalline pattern of lotus seed starch from C-type to V-type and increased the proportion of the microcrystalline region. In addition, the digestive results indicated that LSG had a high resistance to digestive enzymes, which was conducive to increasing the content of resistant starch. Based on the above investigation, the formation and digestive properties showed that the appropriate number of freeze-thaw cycles of pretreatment could facilitate the complexation of starch and lipid under low-pressure microfluidization, which made for the directional regulation of helical conformation and anti-digestion.
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7
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Zheng S, Yang Y, Li Z, Pan Z, Huang Z, Ai Z. A Comparative Study of Different Freezing Methods on Water Distribution, Retrogradation and Digestion Properties of Liangpi (Starch Gel Food). STARCH-STARKE 2022. [DOI: 10.1002/star.202100205] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuaishuai Zheng
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Yong Yang
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
| | - Zhen Li
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Zhili Pan
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Zhongmin Huang
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Zhilu Ai
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
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8
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Wang H, Wang Y, Xu K, Zhang Y, Shi M, Liu X, Chi C, Zhang H. Causal relations among starch hierarchical structure and physicochemical characteristics after repeated freezing-thawing. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107121] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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He J, Zeng L, Gong J, He Y, Liu X, Zhang L, Xu N, Wang Q. Effects of two contrasting dietary polysaccharides and tannic acid on the digestive and physicochemical properties of wheat starch. Food Sci Nutr 2021; 9:5800-5808. [PMID: 34646547 PMCID: PMC8498076 DOI: 10.1002/fsn3.2559] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 06/23/2021] [Accepted: 08/24/2021] [Indexed: 12/27/2022] Open
Abstract
In this study, konjac glucomannan, κ-carrageenan, and tannic acid were selected to study the effects of different combinations on the in vitro digestibility and physicochemical properties of wheat starch. Results showed that the addition of konjac glucomannan, κ-carrageenan, and tannic acid could decrease the digestion of starch and increase the content of resistant starch. Besides, the two polysaccharides weakened the extent of tannic acid on starch digestion. Moreover, although the two polysaccharides had different effects on the in vitro digestion of starch, they had no significant increase in the content of resistant starch. DSC and XRD results demonstrated that the polysaccharides and tannic acid showed synergistic effects on the rebuilding of starch microstructure. FTIR results further manifested that κ-carrageenan and konjac glucomannan could significantly increase the strength of hydrogen bonds in starch. At the same time, the addition of tannic acid would weaken the molecular interaction between polysaccharides and starch. SEM and CLSM results showed that tannic acid added to the polysaccharide-starch mixture not only interacted with starch but also influenced the structure of polysaccharide gel.
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Affiliation(s)
- Juncheng He
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
| | - Lirong Zeng
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
| | - Junan Gong
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
| | - Yalun He
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
| | - Xiong Liu
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
| | - Ling Zhang
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
| | - Na Xu
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
| | - Qiong Wang
- College of Life Sciences and HealthWuhan University of Science and TechnologyWuhanChina
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Bai X, Yang S, Zeng L, Han W, Ran X. Study on physicochemical properties of purple waxy wheat starch. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2021. [DOI: 10.1080/10942912.2021.1901732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Xiangyu Bai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, P.R. China
| | - Shuangpan Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, P.R. China
| | - Li Zeng
- College of Biomass Science and Engineering, Sichuan University, Chengdu, P.R. China
| | - Wei Han
- College of Biomass Science and Engineering, Sichuan University, Chengdu, P.R. China
| | - Xu Ran
- College of Biomass Science and Engineering, Sichuan University, Chengdu, P.R. China
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11
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Yang Q, Liu L, Li X, Li J, Zhang W, Shi M, Feng B. Physicochemical characteristics of resistant starch prepared from Job’s tears starch using autoclaving–cooling treatment. CYTA - JOURNAL OF FOOD 2021. [DOI: 10.1080/19476337.2021.1897688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Qinghua Yang
- College of Agronomy, Northwest A & F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Long Liu
- College of Agronomy, Northwest A & F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Xiangdong Li
- Department of Adlay Research Center, Adlay of Engineering Technical Research Centre in Guizhou, Xingyi, China
- Southwest Guizhou Institue of Karst Regional Development, Xingyi, Guizhou, China
| | - Jing Li
- College of Agronomy, Northwest A & F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Weili Zhang
- College of Agronomy, Northwest A & F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Ming Shi
- Department of Adlay Research Center, Adlay of Engineering Technical Research Centre in Guizhou, Xingyi, China
| | - Baili Feng
- College of Agronomy, Northwest A & F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
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12
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Yang Z, Xu D, Guo L, Zhou H, Wu F, Xu X. The contribution of particle‐size distribution to the physiochemical properties of total wheat starch during freezing. Cereal Chem 2021. [DOI: 10.1002/cche.10402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Zixuan Yang
- School of Food Science and Technology Jiangnan University Wuxi China
| | - Dan Xu
- School of Food Science and Technology Jiangnan University Wuxi China
| | - Lunan Guo
- School of Food Science and Technology Jiangnan University Wuxi China
| | - Hongling Zhou
- School of Food Science and Technology Jiangnan University Wuxi China
| | - Fengfeng Wu
- School of Food Science and Technology Jiangnan University Wuxi China
- State Key Laboratory of Food Science and Technology Jiangnan University Wuxi China
| | - Xueming Xu
- School of Food Science and Technology Jiangnan University Wuxi China
- State Key Laboratory of Food Science and Technology Jiangnan University Wuxi China
- International Joint Laboratory on Food Safety Synergetic Innovation Center of Food Safety and Nutrition Jiangnan University Wuxi China
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13
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Lee HG, Yoo S. Changes in the physical properties of frozen cooked rice depending on thermal insulation levels of packaging during freeze-thaw. J Food Sci 2020; 85:4342-4350. [PMID: 33179330 DOI: 10.1111/1750-3841.15524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/18/2020] [Accepted: 10/19/2020] [Indexed: 11/28/2022]
Abstract
Frozen cooked rice, a common commercially available product, has become the food of convenience in different parts of the world. Frozen foods that are well made in factories often experience quality deterioration due to temperature fluctuation during distribution. This study aimed to evaluate the impact of repeated freeze-thaw, which may occur during distribution, on the physical quality of frozen cooked rice. Additionally, the effect of the thermal insulation levels of the packaging on the quality change of frozen cooked rice as a result of repeated freeze-thaw was analyzed. The repeated freeze-thaw treatment of frozen cooked rice resulted in moisture loss, microstructure destruction, increase in hardness, increase in adhesiveness, decrease in the L* -value, increase in the a* -value, increase in the b* -value, and increase in the ΔE-value. In particular, the quality of frozen cooked rice quickly deteriorated in samples stored in packaging with low thermal insulation. On the contrary, the higher the thermal insulation of the packaging, the longer the changes in the physical properties of the frozen cooked rice were delayed. The findings of the present study show that the deterioration of quality induced by the repeated freeze-thaw treatment of frozen cooked rice could be suppressed by thermal insulated packaging. PRACTICAL APPLICATION: The present study indicates that thermal insulated packaging can be used for industrial packaging of frozen cooked rice, as it delays the quality deteriorating effects of repeated freeze-thaw. This can help maintain the quality of frozen cooked rice and improve consumer satisfaction despite temperature fluctuations during distribution.
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Affiliation(s)
- Hyun-Gyu Lee
- World Institute of Kimchi, Gwangju, 61755, Republic of Korea
| | - SeungRan Yoo
- World Institute of Kimchi, Gwangju, 61755, Republic of Korea
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14
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Shen G, Zhang L, Hu T, Li Z, Chen A, Zhang Z, Wu H, Li S, Hou X. Preparation of potato flour by freeze-thaw pretreatment: Effect of different thawing methods on hot-air drying process and physicochemical properties. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.110157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Jiang J, Zeng J, Gao H, Zhang L, Wang F, Su T, Xiang F, Li G. Effect of low temperature on the aging characteristics of a potato starch gel. Int J Biol Macromol 2020; 150:519-527. [PMID: 32057878 DOI: 10.1016/j.ijbiomac.2020.02.077] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/03/2020] [Accepted: 02/09/2020] [Indexed: 02/07/2023]
Abstract
In this work, the freezing curve of a potato starch gel with different concentrations was determined. The water migration, texture, microstructure and gelatinization of a potato starch gel with 8% starch concentration were studied during aging. The results showed that the freezing characteristics of the potato starch gel with different starch concentrations were quite different. NMR results showed that the relaxation time and proportion of water with different existing states (T21, T22 and T23) in the potato starch gel varied significantly under different aging temperatures. Under different aging temperatures, the texture characteristics and the gel strength of the starch gel were significantly different. The water retention of the gel was better under aging temperatures of 3 °C and -3 °C than for other gel samples. SEM and C-cell results showed that under aging temperatures of 3 °C and 0 °C, the formation of a gel network structure was accelerated, and the gel was relatively firm, with small and uniform pores and a larger pore area and number. The rapid viscosity analysis results showed that the peak viscosity, breakdown and setback of the vacuum freeze-dried gel powder changed differently under the aging temperatures.
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Affiliation(s)
- Jikai Jiang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Jie Zeng
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China.
| | - Haiyan Gao
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Lin Zhang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Fang Wang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Tongchao Su
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Fengjuan Xiang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Guanglei Li
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
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