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Li Z, Kong H, Li Z, Gu Z, Ban X, Hong Y, Cheng L, Li C. Designing liquefaction and saccharification processes of highly concentrated starch slurry: Challenges and recent advances. Compr Rev Food Sci Food Saf 2023; 22:1597-1612. [PMID: 36789798 DOI: 10.1111/1541-4337.13122] [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: 09/18/2022] [Revised: 01/15/2023] [Accepted: 01/25/2023] [Indexed: 02/16/2023]
Abstract
Starch-based sugars are an important group of starch derivatives used in food, medicine, chemistry, and other fields. The production of starch sugars involves starch liquefaction and saccharification processes. The production cost of starch sugars can be reduced by increasing the initial concentration of starch slurry. However, the usage of the highly concentrated starch slurry is characterized by challenges such as low reaction efficiency and poor product performance during the liquefaction and saccharification processes. In this study, we endeavored to provide a reference guide for improving high-concentration starch sugar production. Thus, we reviewed the effects of substrate concentration on the starch sugar production process and summarized several potential strategies. These regulation strategies, such as physical field pretreatment, complex enzyme-assisted, and temperature control, can significantly increase the starch concentration and mitigate the challenges of using highly concentrated starch slurry. We believe that highly concentrated starch sugar production will achieve a qualitative leap in the future. This review provides theoretical guidance and highlights the importance of high concentration in starch-based sugar production. Further studies are needed to explore the fine structure and enzyme attack mode during the liquefaction and saccharification processes to regulate the production of more targeted products.
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Affiliation(s)
- Zexi Li
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Haocun Kong
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhaofeng Li
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, China
| | - Zhengbiao Gu
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, China
| | - Xiaofeng Ban
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, China
| | - Yan Hong
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, China
| | - Li Cheng
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, China
| | - Caiming Li
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, China
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Estivi L, Brandolini A, Condezo-Hoyos L, Hidalgo A. Impact of low-frequency ultrasound technology on physical, chemical and technological properties of cereals and pseudocereals. ULTRASONICS SONOCHEMISTRY 2022; 86:106044. [PMID: 35605345 PMCID: PMC9126843 DOI: 10.1016/j.ultsonch.2022.106044] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 04/26/2022] [Accepted: 05/15/2022] [Indexed: 05/24/2023]
Abstract
Cereals (CE) and pseudocereals (PSCE) play a pivotal role in nourishing the human population. Low-frequency ultrasound (LFUS) modifies the structure of CE and PSCE macromolecules such as starch and proteins, often improving their technological, functional and bioactive properties. Hence, it is employed for enhancing the traditional processes utilized for the preparation of CE- and PSCE-based foods as well as for the upcycling of their by-products. We report recent advances in LFUS treatments for hydration, germination, extraction of bioactive compounds from by-products, and fortification of CEs and PSCE, including kinetic modelling and underlying action mechanisms. Meta-analyses of LFUS influence on compounds extraction and starch gelatinization are also presented. LFUS enhances hydration rate and time lag phase of CE and PSCE, essential for germination, extraction, fermentation and cooking. The germination is improved by increasing hydration, releasing promoters and eliminating inhibitors. Furthermore, LFUS boosts the extraction of phenolic compounds, polysaccharides and other food components; modifies starch structure, affecting pasting properties; causes partial denaturation of proteins, improving their interfacial properties and their peptides availability. Overall, LFUS has an outstanding potential to improve transformation processes and functionalities of CE and PSCE.
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Affiliation(s)
- Lorenzo Estivi
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Celoria 2, Milan 20133, Italy
| | - Andrea Brandolini
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria - Unità di Ricerca per la Zootecnia e l'Acquacoltura (CREA-ZA), via Piacenza 29, Lodi 26900, Italy.
| | - Luis Condezo-Hoyos
- Innovative Technology, Food and Health Research Group, Facultad de Industrias Alimentarias, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Peru; Instituto de Investigación de Bioquímica y Biología Molecular, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Peru
| | - Alyssa Hidalgo
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Celoria 2, Milan 20133, Italy
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Zhang M, Xu Z, Wang L. Ultrasonic treatment improves the performance of starch as depressant for hematite flotation. ULTRASONICS SONOCHEMISTRY 2022; 82:105877. [PMID: 34920351 PMCID: PMC8799593 DOI: 10.1016/j.ultsonch.2021.105877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/26/2021] [Accepted: 12/13/2021] [Indexed: 05/20/2023]
Abstract
In this study, ultrasonic treatment was introduced to enhance the depressive performance of starch in the reverse flotation separation of fine hematite from quartz. It was found that after ultrasonic treatment, starch was not only able to impart a higher surface wettability of hematite, but also better reduced the degree of entrainment of fine hematite, both of which alleviated the loss of hematite to the froth. Flocculation tests together with starch property characterization were conducted to understand the underpinning mechanism. It is interesting that ultrasonic treatment of starch led to stronger and more selective flocculation of hematite, which accounted for the reduced entrainment loss of fine hematite and benefited the concentrate Fe grade. It was also found that ultrasonic treatment enhanced the dissolution and acidity of starch with a simultaneous increase in the content of amylose, which in turn could contribute to the improved depression and selective flocculation of hematite.
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Affiliation(s)
- Ming Zhang
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Zeping Xu
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Lei Wang
- National Engineering Research Centre of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, China
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Li C, Kong H, Yang Q, Gu Z, Ban X, Cheng L, Hong Y, Li Z. A temperature-mediated two-step saccharification process enhances maltose yield from high-concentration maltodextrin solutions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:3742-3748. [PMID: 33301206 DOI: 10.1002/jsfa.11005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 10/02/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Designing a high-concentration (50%, w/w) maltodextrin saccharification process is a green method to increase the productivity of maltose syrup. RESULTS In this study, a temperature-mediated two-step process using β-amylase and pullulanase was investigated as a strategy to improve the efficiency of saccharification. During the saccharification process, both pullulanase addition time and temperature adjustment greatly impacted the final maltose yield. These results indicated that an appropriate β-amylolysis in the first stage (the first 8 h) was required to facilitate saccharification process, with the maltose yield of 8.46% greater than that of the single step saccharification. Molecular structure analysis further demonstrated that a relatively low temperature (50 °C), as compared with a normal temperature (60 °C), in the first stage resulted in a greater number of chains polymerized by at least seven glucose units and a less heterogeneity system within the residual substrate. The molecular structure of the residual substrate might be beneficial for the subsequent cooperation between β-amylase and pullulanase in the following 40 h (second stage). CONCLUSION Over a 48 h saccharification, the temperature-mediated two-step process dramatically increased the conversion rate of maltodextrin and yielded significantly more maltose and less byproduct, as compared with a constant-temperature process. The two-step saccharification process therefore offered an efficient and green strategy for maltose syrup production in industry. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Caiming Li
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People's Republic of China
| | - Haocun Kong
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Qianwen Yang
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Zhengbiao Gu
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People's Republic of China
| | - Xiaofeng Ban
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Li Cheng
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People's Republic of China
| | - Yan Hong
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People's Republic of China
| | - Zhaofeng Li
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi, People's Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, People's Republic of China
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