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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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Wang Y, Tian Y, Ban X, Li C, Hong Y, Cheng L, Gu Z, Li Z. Substrate Selectivity of a Novel Amylo-α-1,6-glucosidase from Thermococcus gammatolerans STB12. Foods 2022; 11:1442. [PMID: 35627012 PMCID: PMC9142091 DOI: 10.3390/foods11101442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 02/05/2023] Open
Abstract
Amylo-α-1,6-glucosidase (EC 3.2.1.33, AMY) exhibits hydrolytic activity towards α-1,6-glycosidic bonds of branched substrates. The debranching products of maltodextrin, waxy corn starch and cassava starch treated with AMY, pullulanase (EC 3.2.1.41, PUL) and isoamylase (EC 3.2.1.68, ISO), were investigated and their differences in substrate selectivity and debranching efficiency were compared. AMY had a preference for the branched structure with medium-length chains, and the optimal debranching length was DP 13-24. Its optimum debranching length was shorter than ISO (DP 25-36). In addition, the debranching rate of maltodextrin treated by AMY for 6 h was 80%, which was 20% higher than that of ISO. AMY could decompose most of the polymerized amylopectin in maltodextrin into short amylose and oligosaccharides, while it could only decompose the polymerized amylopectin in starch into branched glucan chains and long amylose. Furthermore, the successive use of AMY and β-amylase increased the hydrolysis rate of maltodextrin from 68% to 86%. Therefore, AMY with high substrate selectivity and a high catalytic capacity could be used synergistically with other enzyme preparations to improve substrate utilization and reduce reaction time. Importantly, the development of a novel AMY provides an effective choice to meet different production requirements.
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Affiliation(s)
- Yamei Wang
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
| | - Yixiong Tian
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
| | - Xiaofeng Ban
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
| | - Caiming Li
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Yan Hong
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Li Cheng
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Zhengbiao Gu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Zhaofeng Li
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.W.); (Y.T.); (X.B.); (C.L.); (Y.H.); (L.C.); (Z.G.)
- Key Laboratory of Synergetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
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Lu Y, Chae M, Vasanthan T, Bressler DC. The potential of fiber-depleted starch concentrate produced through air currents assisted particle separation of barley flour in bio-ethanol production. BIORESOURCE TECHNOLOGY 2020; 303:122942. [PMID: 32044650 DOI: 10.1016/j.biortech.2020.122942] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
Isolation of fiber concentrate enriched in β-glucan from barley flour via air currents assisted particle separation (ACAPS) generates an underutilized by-product stream, starch concentrate. Since barley starch concentrate (BSC) is depleted in soluble fibre, we examined the enzyme requirements for its hydrolysis and subsequent fermentation. Lower doses of a common raw starch hydrolyzing enzyme (STARGEN™ 002) effectively hydrolyzed BSC, achieving similar hydrolysis kinetics to the wheat benchmark. Hydrolysis of BSC did not require further enzyme supplementation, which is required for optimal wheat hydrolysis. This likely resulted from the smaller particle size of BSC relative to wheat feedstocks. Interestingly, simultaneous saccharification and fermentation of BSC using a 0.25X dose of STARGEN™ 002 alone enabled efficient ethanol production, though a requirement for phosphorus supplementation was identified. This study proposes a biorefining strategy that supports the generation of a value-added co-product, starch concentrate, while significantly reducing the enzyme requirements for bioethanol production.
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Affiliation(s)
- Yeye Lu
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Michael Chae
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - Thava Vasanthan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
| | - David C Bressler
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada.
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Yang Y, Zhu Y, Obaroakpo JU, Zhang S, Lu J, Yang L, Ni D, Pang X, Lv J. Identification of a novel type I pullulanase from Fervidobacterium nodosum Rt17-B1, with high thermostability and suitable optimal pH. Int J Biol Macromol 2020; 143:424-433. [DOI: 10.1016/j.ijbiomac.2019.10.112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/09/2019] [Accepted: 10/11/2019] [Indexed: 01/06/2023]
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