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Yu Y, Weng W, Ren Z, Zhang Y, Li P, Shi L. Quality deterioration of mashed potatoes during the freeze-thaw cycle: From the perspective of moisture and microstructure. Food Chem X 2024; 23:101753. [PMID: 39280215 PMCID: PMC11402148 DOI: 10.1016/j.fochx.2024.101753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/26/2024] [Accepted: 08/17/2024] [Indexed: 09/18/2024] Open
Abstract
This study aimed to simulate cold chain sales temperatures to predict the effects of temperature fluctuations on the physicochemical properties, moisture distribution, microstructure, and flavor of mashed potatoes. The results showed a decline in the hardness and chewability of mashed potatoes alongside the migration of water from bound water states to weakly bound states under freeze-thaw cycles (FTC) conditions. Microstructural analysis indicated that the adhesive forces between proteins and starch granules were weakened, and the structure of mashed potatoes particles was destroyed following FTC. The oxidation and degradation of fat induced by FTC increased the content of key compounds such as octanal and nonanal, thereby contributing to an overall deterioration in the flavor of mashed potatoes. This study elucidates the effects of FTC on water migration, microstructure, and flavor characteristics of mashed potatoes, thereby providing a theoretical foundation for improving the quality of prefabricated frozen mashed potatoes dishes.
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Affiliation(s)
- Yingying Yu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Wuyin Weng
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Zhongyang Ren
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Yucang Zhang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Ping Li
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Linfan Shi
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
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Kavya M, Krishnan R, Suvachan A, Sathyan S, Tozuka Y, Kadota K, Nisha P. The art and science of porous starch: understanding the preparation method and structure-function relationship. Crit Rev Food Sci Nutr 2024:1-18. [PMID: 38768041 DOI: 10.1080/10408398.2024.2352548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Porous starch (PS), a modified form of starch with unique properties, is attracting substantial attention for its diverse advantages and applications. Its intricate porous structure, crystalline and amorphous characteristics, and hydrophilic-hydrophobic properties stem from pore formation via physical, chemical, enzymatic, and combined synergistic methods. Porous starch offers benefits like improved gelatinization temperature, water absorption, increased surface area, tunable crystallinity, and enhanced functional properties, making it appealing for diverse food industry applications. To optimize its properties, determining the parameters governing porous structure formation is crucial. Factors such as processing conditions, starch source, and modification methods substantially impact porosity and the overall characteristics of the material. Understanding and controlling these parameters allows customization for specific applications, from pharmaceutical drug delivery systems to enhancing texture and moisture retention in food products. To date, studies shedding light on how porosity formation can be fine-tuned for specific applications are fewer. This review critically assesses the existing reports on porous starch, focusing on how preparation methods affect porosity formation, thereby influencing the product's crystallinity/hydrophilic-hydrophobic nature and overall applicability.
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Affiliation(s)
- Mohan Kavya
- Agro Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research, Trivandrum, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Reshma Krishnan
- Agro Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research, Trivandrum, India
| | - Abhijith Suvachan
- Agro Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research, Trivandrum, India
| | - Sannya Sathyan
- Agro Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research, Trivandrum, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Yuichi Tozuka
- Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Kazunori Kadota
- Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - P Nisha
- Agro Processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research, Trivandrum, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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de Oliveira Maior L, Bach D, Demiate IM, Lacerda LG. Impact of cyclic and continuous dry heat modification on the structural, thermal, technological, and in vitro digestibility properties of potato starch (Solanum tuberosum L.): A comparative study. Int J Biol Macromol 2024; 263:130370. [PMID: 38403222 DOI: 10.1016/j.ijbiomac.2024.130370] [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: 08/25/2023] [Revised: 02/09/2024] [Accepted: 02/20/2024] [Indexed: 02/27/2024]
Abstract
Dry heat treatment (DHT) has been demonstrated as a viable method for starch modification, offering benefits due to its environmentally friendly process and low operational costs. This research modified potato starch using different DHT conditions (continuous-CDHT and cyclic-RDHT), with durations ranging from 3 to 15 h and 1 to 5 cycles, at 120 °C. The study investigated and compared the structural, thermal, pasting, and morphological properties of the treated samples to those of untreated potato starch, including in vitro digestibility post-modification. DHT altered the amylose content of the biopolymer. X-ray diffraction patterns transitioned from type B to type C, and a decrease in relative crystallinity (RC%) was observed. Morphological changes were more pronounced in starches modified by RDHT. Paste viscosities of both CDHT and RDHT-treated starches decreased significantly, by 61.7 % and 58.1 % respectively, compared to native starch. The gelatinization enthalpy of RDHT-treated starches reduced notably, from 17.60 to 16.10 J g-1. Additionally, starch digestibility was impacted, with cyclic treatments yielding a significant increase in resistant starch content, notably an 18.26 % rise. These findings underscore the efficacy of dry heat in enhancing the functional properties of potato starch.
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Affiliation(s)
- Luane de Oliveira Maior
- Food Science and Technology Graduate Program, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti 4748, Uvaranas Campus, Ponta Grossa, PR 84030-900, Brazil
| | - Daniele Bach
- Food Science and Technology Graduate Program, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti 4748, Uvaranas Campus, Ponta Grossa, PR 84030-900, Brazil
| | - Ivo Mottin Demiate
- Food Science and Technology Graduate Program, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti 4748, Uvaranas Campus, Ponta Grossa, PR 84030-900, Brazil
| | - Luiz Gustavo Lacerda
- Food Science and Technology Graduate Program, State University of Ponta Grossa (UEPG), Av. Carlos Cavalcanti 4748, Uvaranas Campus, Ponta Grossa, PR 84030-900, Brazil.
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4
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Liu W, Zhao R, Liu Q, Zhao R, Zhang L, Chen Z, Hu H. Assessment of freeze damage in tuber starch with electrical impedance spectroscopy and thermodynamic, rheological, spectrographic techniques. Int J Biol Macromol 2023; 253:127197. [PMID: 37797854 DOI: 10.1016/j.ijbiomac.2023.127197] [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: 07/19/2023] [Revised: 09/12/2023] [Accepted: 09/30/2023] [Indexed: 10/07/2023]
Abstract
In this study, we aimed to use electrical impedance spectroscopy (EIS) to assess the freeze-damage level of starches from potato tubers treated with multiple freezing-thawing (FT) cycles. The results showed that the relationship between the physicochemical properties of starches and the impedance characteristics of starch paste is temperature-dependent. As the temperature rises to 70-90 °C, the impedance modules show a significant correlation with the amylose and mineral contents, gelatinization and pasting properties, short-range ordered structure, relative crystallinity, and damage level within the range of 10-1 MHz (p < 0.01). This could be because FT leads to a reduction in amylose and ion content. Compared to a high level of freeze-damaged starch (FDS), a low level of FDS has less amylopectin and more amylose. Additionally, the ions could be typically evenly distributed throughout the unbranched linear amylose structure in starch paste. At the peak gelatinization temperature, the starch paste made from a low level of FDS exhibits a weakened network structure, allowing more unbound water for ion movement and enhancing electric conduction. In conclusion, EIS can predict the damage level and properties of FDS, which can benefit the frozen starchy food industry.
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Affiliation(s)
- Wei Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Ruixuan Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Qiannan Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Renjie Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Liang Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Ziqi Chen
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Honghai Hu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, China.
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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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6
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Zhang C, Wang SY, Wu CY, Li JJ, Zhang LZ, Wang ZJ, Liu QQ, Qian JY. Effect of melting combined with ice recrystallization on porous starch preparation: Pore-forming properties, granular morphology, functionality, and multi-scale structures. Food Res Int 2023; 174:113463. [PMID: 37986407 DOI: 10.1016/j.foodres.2023.113463] [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: 06/27/2023] [Revised: 09/05/2023] [Accepted: 09/10/2023] [Indexed: 11/22/2023]
Abstract
In this work, critical melting (CM) combined with freeze-thawing treatment (FT, freezing at -20 ℃ and -80 ℃, respectively) was used to prepare porous starch. The results showed that CM combined with the slow freezing rate (-20 ℃) can prepare porous starch with characteristics of grooves and cavities, while combined with the rapid freezing rate (-80 ℃) can prepare with holes and channels, especially after repeating FT cycles. Compared with the native counterpart, the specific surface area, pore volume, and average diameter of CMFT-prepared porous starch were significantly increased to 4.07 m2/g, 7.29 cm3/g × 10-3, and 3.57 nm, respectively. CMFT significantly increased the thermal stability of starch, in which the To, Tp, and Tc significantly increased from 63.32, 69.62, and 72.90 (native) to ∼69, 72, and 76 °C, respectively. CMFT significantly increased water and oil absorption of porous starch from 91.20 % and 72.00 % (native) up to ∼163 % and 94 %, respectively. Moreover, CMFT-prepared porous starch had a more ordered double-helical structure, which showed in the significantly increased relative crystallinity, semi-crystalline lamellae structure, and the proportion of the double helix structure of starch. The synergistic effect of melting combined with ice recrystallization can be used as an effective way to prepare structure-stabilized porous starch.
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Affiliation(s)
- Chen Zhang
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China; Postdoctoral Mobile Station of Agriculture, College of Agriculture, Yangzhou University, Wenhui Donglu 48, Yangzhou, Jiangsu 225009, People's Republic of China
| | - Shi-Yi Wang
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China
| | - Chu-Yun Wu
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China
| | - Jing-Jing Li
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China
| | - Ling-Zhi Zhang
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China
| | - Zhi-Juan Wang
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China
| | - Qiao-Quan Liu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Wenhui Donglu 48, Yangzhou, Jiangsu 225009, People's Republic of China.
| | - Jian-Ya Qian
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China.
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Ohnuma M, Ito K, Hamada K, Takeuchi A, Asano K, Noda T, Watanabe A, Hokura A, Teramura H, Takahashi F, Mutsuro-Aoki H, Tamura K, Shimada H. Peculiar properties of tuber starch in a potato mutant lacking the α-glucan water dikinase 1 gene GWD1 created by targeted mutagenesis using the CRISPR/dMac3-Cas9 system. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2023; 40:219-227. [PMID: 38420564 PMCID: PMC10901162 DOI: 10.5511/plantbiotechnology.23.0823a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 08/23/2023] [Indexed: 03/02/2024]
Abstract
Glucose chains in starch are phosphorylated and contribute to structural stabilization. Phosphate groups contained in starch also play a role in retaining moisture. α-Glucan water dikinase 1 (GWD1) is involved in the phosphorylation of glucose chains in starch. In this study, we generated potato mutants of the GWD1 gene using the CRISPR/dMac3-Cas9 system. Observation of the phenotypes of the GWD1-deficient mutants revealed their physiological roles in tuber starch formation. The 4-allele mutants showed growth retardation and a delay in tuber formation. A significant decrease in phosphorus content was detected in the tuber starch of the gwd1 mutant. This mutant starch showed a higher amylose content than the wild-type starch, whereas its gelatinization temperature was slightly lower than that of the WT starch. The peak viscosity of the mutant starch was lower than that of the WT starch. These observations revealed that the starch of the gwd1 mutants had peculiar and unique properties compared to those of WT, sbe3 and gbss1 mutant starches. The amount of tissue-released water due to freeze-thawing treatment was determined on tubers of the gwd1 mutant and compared with those of WT and the other mutants. Significantly less water loss was found in the gwd1, sbe3 and gbss1 mutant tubers than in the WT tubers. Our results indicate that the GWD1 gene is not only important for potato growth, but also largely effective for the traits of tuber starch.
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Affiliation(s)
- Mariko Ohnuma
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Kosuke Ito
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Karin Hamada
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Ami Takeuchi
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Kenji Asano
- Division of Large-Scale Upland Farming Research, Field Crop Breeding Group, Hokkaido Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Kasai, Hokkaido 082-0081, Japan
| | - Takahiro Noda
- Division of Large-Scale Upland Farming Research, Field Crop Breeding Group, Hokkaido Agricultural Research Center, National Agriculture and Food Research Organization (NARO), Kasai, Hokkaido 082-0081, Japan
| | - Akira Watanabe
- Department of Applied Chemistry, Tokyo Denki University, Adachi, Tokyo 120-8551, Japan
| | - Akiko Hokura
- Department of Applied Chemistry, Tokyo Denki University, Adachi, Tokyo 120-8551, Japan
| | - Hiroshi Teramura
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Fuminori Takahashi
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Hiromi Mutsuro-Aoki
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Koji Tamura
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
| | - Hiroaki Shimada
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika, Tokyo 125-8585, Japan
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Zhang C, Wang ZJ, Wan KX, Wang SY, Zhang LZ, Liu QQ, Qian JY. Enhancement of starch-hydrocolloid synergism via the construction of an interchain entanglement. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Modified Starch-Based Adhesives: A Review. Polymers (Basel) 2022; 14:polym14102023. [PMID: 35631906 PMCID: PMC9147152 DOI: 10.3390/polym14102023] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/29/2022] [Accepted: 05/06/2022] [Indexed: 02/02/2023] Open
Abstract
Consumer trends towards environmentally friendly products are driving plastics industries to investigate more benign alternatives to petroleum-based polymers. In the case of adhesives, one possibility to achieve sustainable production is to use non-toxic, low-cost starches as biodegradable raw materials for adhesive production. While native starch contains only hydroxyl groups and has limited scope, chemically modified starch shows superior water resistance properties for adhesive applications. Esterified starches, starches with ester substituents, can be feasibly produced and utilized to prepare bio-based adhesives with improved water resistance. Syntheses of esterified starch materials can involve esterification, transesterification, alkylation, acetylation, succinylation, or enzymatic reactions. The main focus of this review is on the production of esterified starches and their utilization in adhesive applications (for paper, plywood, wood composites, fiberboard, and particleboard). The latter part of this review discusses other processes (etherification, crosslinking, grafting, oxidation, or utilizing biobased coupling agents) to prepare modified starches that can be further applied in adhesive production. Further discussion on the characteristics of modified starch materials and required processing methods for adhesive production is also included.
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