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Liu L, Jiang X, Chen Y, Yaqoob S, Xiu L, Liu H, Zheng M, Cai D, Liu J. Germination-induced modifications of starch structure, flour-processing characteristics, and in vitro digestive properties in maize. Food Chem X 2024; 22:101430. [PMID: 38736981 PMCID: PMC11087989 DOI: 10.1016/j.fochx.2024.101430] [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: 03/13/2024] [Revised: 04/24/2024] [Accepted: 04/28/2024] [Indexed: 05/14/2024] Open
Abstract
Current research on maize germination suffers from long sampling intervals, and the relationship between the starch structure and the processing properties of flour in maize is still unclear. This study observed the effect of germination on the structure and composition of maize starch and the processing properties of maize flour over a 72 h period using a short interval sampling method. At 36 h, the short-range ordered structure, crystallinity, and enthalpy of starch reached the highest values of 1.02, 34.30%, and 9.90 J/g, respectively. At 72 h, the ratios of rapidly-digested starch (RDS) and slowly-digested starch (SDS) enhanced to 29.37% and 28.97%; the RS content reduced to 35.37%; and the flow properties of the starch were improved. This study enhances the understanding of the effects of germination on the processing properties of maize starch and flour, determines the appropriate application, and recommends the use of germination in the food industry.
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Affiliation(s)
- Lipeng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Xin Jiang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Yelinxin Chen
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Sanabil Yaqoob
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Lin Xiu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Huimin Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Mingzhu Zheng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Dan Cai
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Jingsheng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
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Zheng X, Wang Q, Li L, Liu C, Ma X. Recent advances in germinated cereal and pseudo-cereal starch: Properties and challenges in its modulation on quality of starchy foods. Food Chem 2024; 458:140221. [PMID: 38943963 DOI: 10.1016/j.foodchem.2024.140221] [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: 04/12/2024] [Revised: 06/15/2024] [Accepted: 06/22/2024] [Indexed: 07/01/2024]
Abstract
Germination is an environmentally friendly process with no use of additives, during which only water spraying is done to activate endogenous enzymes for modification. Furthermore, it could induce bioactive phenolics accumulation. Controlling endogenous enzymes' activity is essential to alleviate granular disruption, crystallinity loss, double helices' dissociation, and molecular degradation of cereal and pseudo-cereal starch. Post-treatments (e.g. thermal and high-pressure technology) make it possible for damaged starch to reassemble towards well-packed structure. These contribute to alleviated loss of solubility and pasting viscosity, improved swelling power, or enhanced resistant starch formation. Cereal or pseudo-cereal flour (except that with robust structure) modified by early germination is more applicable to produce products with desirable texture and taste. Besides shortening duration, germination under abiotic stress is promising to mitigate starch damage for better utilization in staple foods.
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Affiliation(s)
- Xueling Zheng
- College of Food Science and Engineering, Henan University of Technology, No. 100 Lianhua Street in Zhongyuan District, Zhengzhou, Henan 450001, China
| | - Qingfa Wang
- College of Food Science and Engineering, Henan University of Technology, No. 100 Lianhua Street in Zhongyuan District, Zhengzhou, Henan 450001, China
| | - Limin Li
- College of Food Science and Engineering, Henan University of Technology, No. 100 Lianhua Street in Zhongyuan District, Zhengzhou, Henan 450001, China.
| | - Chong Liu
- College of Food Science and Engineering, Henan University of Technology, No. 100 Lianhua Street in Zhongyuan District, Zhengzhou, Henan 450001, China.
| | - Xiaoyan Ma
- College of Food Science and Technology, Hebei Agricultural University, No.2596 Yuekainan Street, Baoding, Hebei 071001, China
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Zhang X, Shen H, Qiao J, Li S, Yang X, Liu X, Zhang Y, Zhang H, Zhao X, Wang H, Xie F. Impact of flaxseed gum on the aggregate structure, pasting properties, and rheological behavior of waxy rice starch. Int J Biol Macromol 2024; 270:132421. [PMID: 38759854 DOI: 10.1016/j.ijbiomac.2024.132421] [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: 01/29/2024] [Revised: 04/07/2024] [Accepted: 05/14/2024] [Indexed: 05/19/2024]
Abstract
This study examines the effects of flaxseed gum (FG) on the aggregate structure, pasting and rheological properties of waxy rice starch (WRS). Results display an increase in the ordered molecular structure (R1047/1024), relative crystallinity (RC), compactness (α), and microphase heterogeneity (ε, density degree of nanoaggregates, from 3.52 to 4.23) for WRS-FG complexes. These suggested FG facilitated the development of more organized molecular and crystalline structures of WRS, accompanied by the formation of ordered nanoaggregates with higher density (i.e., nano-aggregation structure). Also, FG addition resulted in the formation of enhanced gel network structure characterized by thicker layer walls and more uniform pores. These structural transformations contributed to a rise in gelatinization temperature (To, from 56.90 °C to 62.10 °C) and enthalpy (ΔH), as well as alterations in paste viscosities (PV, from 1285.00 mPa·s to 1734.00 mPa·s), and the rigidity of network structure (e.g., decreased loss tangent). These results indicate that FG could effectively regulate the techno-functional properties of WRS by rationally controlling the starch intrinsic structures of starch. And this study may improve the pasting and gelling properties of starch, thus driving the development of high-quality starchy foods and prolonging their shelf life, especially for glutinous rice flour products.
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Affiliation(s)
- Xinping Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China
| | - Huishan Shen
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Jingyue Qiao
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China
| | - Shuaihao Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China
| | - Xiaojuan Yang
- Editorial Department of Journal, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China
| | - Xingli Liu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Yanyan Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Hua Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Xuewei Zhao
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Hongwei Wang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, No. 136 Kexue Road, Zhengzhou, Henan 450001, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, China; Food Laboratory of Zhongyuan, Luohe, Henan 462300, China; School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom.
| | - Fengwei Xie
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom; Department of Chemical Engineering, University of Bath, Bath BA2 7AY, United Kingdom.
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Shen H, Li J, Chen L, Guo X. Insights into multiscale structure and digestive characteristic of starch from two cultivars of chestnut during kernel development. Int J Biol Macromol 2024; 269:131978. [PMID: 38692537 DOI: 10.1016/j.ijbiomac.2024.131978] [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: 01/22/2024] [Revised: 04/17/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
Multiscale structure and digestive characteristic of starch during kernel development of Castanea henryi ('Jinzhui' (YS) and 'Baiyan No.1' (WS)) were investigated in this study. Structural analysis revealed that the surface of starch granules became smooth, the amylopectin content decreased (from 71.32 % to 70.47 %, from 71.44 % to 68.37 %, respectively), the chain length distribution of amylopectin reduced (the proportion of B1 chain decreased from 52.35 % to 50.60 %, from 52.22 % to 50.59 %, respectively) while the amorphous and semi-crystalline lamellae of starch increased during development, which was consistent with the decreasing relative crystallinity (from 28.79 % to 24.11 %, from 29.57 % to 23.66 %, respectively) and short-range ordering degree. The degradation of ordered structure further resulted in the increase of digestibility, especially in the late developmental stage, supported by a significant decrease of resistant starch content (from 70.21 % to 61.70 % and from 73.58 % to 58.86 %, respectively). Transcriptome analysis and RT-qPCR were performed to explore the possible molecular mechanisms affecting starch structure. The high expression of several key genes including AGPase, GBSS, SBE, SSS, ISA and PUL in late development stage might be the reason of structural changes during development. The results provided valuable information for starch accumulation during kernel development of Castanea henryi.
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Affiliation(s)
- Haoran Shen
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Research Institute for Food Nutrition and Human Health, South China University of Technology, Guangzhou 510640, China
| | - Jiaqi Li
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Research Institute for Food Nutrition and Human Health, South China University of Technology, Guangzhou 510640, China
| | - Ling Chen
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Research Institute for Food Nutrition and Human Health, South China University of Technology, Guangzhou 510640, China
| | - Xinbo Guo
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Research Institute for Food Nutrition and Human Health, South China University of Technology, Guangzhou 510640, China.
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5
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Geng DH, Tang N, Gan J, Cheng Y. Two-step modification of pullulanase and transglucosidase: A novel way to improve the gel strength and reduce the digestibility of rice starch. Int J Biol Macromol 2024; 266:130992. [PMID: 38521318 DOI: 10.1016/j.ijbiomac.2024.130992] [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: 12/05/2023] [Revised: 03/12/2024] [Accepted: 03/17/2024] [Indexed: 03/25/2024]
Abstract
The multiscale structure, gel strength and digestibility of rice starch modified by the two-step modification of pullulanase (PUL) pretreatment and transglucosidase (TG) treatment for 6, 12, 18 and 24 h were investigated. The debranching hydrolysis of PUL produced some linear chains, which rearranged to form stable crystalline structures, reducing the digestible starch content, but weakening the gel strength. TG treatment connected some short chains to longer linear chains via α-1,6-glycosidic bonds, generating the structures of linear chain with fewer branches. The short branches promoted the interaction between starch molecules to form a more compact three-dimensional gel network structure, showing higher hardness and springiness. Moreover, these chains could form more stable crystals, reducing the digestible starch content, and the increase of branching degree inhibited digestive enzyme hydrolysis, reducing the digestion rate. The multiscale structure of starch tended to stabilize after TG treatment for 18 h, which could form a gel with stronger strength and lower digestibility than native starch gel. Therefore, the two-step modification of PUL and TG was an effective way to change the structure of rice starch to improve the gel strength and reduce the digestibility.
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Affiliation(s)
- Dong-Hui Geng
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Ning Tang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jing Gan
- College of Life Science, Yantai University, Yantai 264000, China
| | - Yongqiang Cheng
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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6
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Zhang G, Hua D, Xu J, Yang L, Zhou D, He Y, Liu Y, Tang A, Lu B, Liu H. Pulsed light treatment enhances starch hydrolysis and improves starch physicochemical properties of germinated brown rice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:1599-1608. [PMID: 37847530 DOI: 10.1002/jsfa.13051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/08/2023] [Accepted: 10/17/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Recently, germinated brown rice (GBR) has gained substantial attention as a functional food because of its nutritional attributes. Notably, pulsed light technology (PLT) has emerged as a promising tool for enhancing rice germination and, consequently, has improved the nutritional and functional qualities of GBR-derived products. However, further research is required to comprehensively understand the impact of PLT on GBR physicochemical properties. The present study aimed to investigate the stimulating effects of PLT on starch hydrolysis, starch structure and functional properties of GBR. RESULTS The PLT substantially boosted α-amylase activity during brown rice germination, leading to a 10.9% reduction in total starch content and a 17.3% increase in reducing sugar content, accompanied by elevated free water levels. Structural analysis indicated no changes in starch crystalline types, whereas gelatinization temperature slightly increased. Pasting properties exhibited a significant drop in peak viscosity. Scanning electron microscopy showed surface erosion of starch granules with microstructural changes. Furthermore, correlation analysis established positive links between α-amylase activity, reducing sugar accumulation, starch structure and functional properties in GBR. CONCLUSION The present study demonstrates that PLT enhanced the physicochemical properties of GBR starch, significantly improving the stability of GBR products, thereby contributing to expanded applicability of rice starch in the food industry. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Guangchen Zhang
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Dong Hua
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Jiaxin Xu
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Lina Yang
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Dayu Zhou
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Yutang He
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Youhong Liu
- Institute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Northeast Branch of National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Harbin, China
| | - Ao Tang
- Institute of Crop Cultivation and Tillage, Heilongjiang Academy of Agricultural Sciences/Northeast Branch of National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Harbin, China
| | - Bingxuan Lu
- Liaoning Zhaixiang Eco Agriculture Limited By Share Ltd, Benxi, China
| | - He Liu
- College of Food Science and Technology, Bohai University, Jinzhou, China
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Zhang X, Tang N, Jia X, Geng D, Cheng Y. Multi-Scale Comparison of Physicochemical Properties, Refined Structures, and Gel Characteristics of a Novel Native Wild Pea Starch with Commercial Pea and Mung Bean Starch. Foods 2023; 12:2513. [PMID: 37444251 DOI: 10.3390/foods12132513] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
In the present study, the morphology, refined structure, thermal properties, and dynamic rheological, texture, and digestive properties of common vetch starch, a potential new type of legume starch, were systematically investigated, and compared with commercially available pea and mung bean starch. The results showed that the composition and chemical structure of common vetch starch were similar to the pea and mung bean starch. However, the amylose content (35.69), A-chain proportion (37.62), and relative crystallinity (34.16) of common vetch starch were higher, and the particle size and molecular weight (44,042 kDa) were larger. The value of pasting properties and enthalpy change (ΔH) of gelatinization of common vetch starch was lower and higher than mung bean and pea starch, respectively, and a lower swelling power and pasting index indicate that common vetch starch had higher hot-paste and cold-paste stability. In addition, common vetch starch gel exhibited good rheology, cohesiveness, and anti-digestive properties. These results provide new insights into the broader application of common vetch starch.
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Affiliation(s)
- Xiaojun Zhang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Ning Tang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xin Jia
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Donghui Geng
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yongqiang Cheng
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
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Deng C, Zhang T, Zhang X, Gu T, Xu L, Yu Z, Zheng M, Zhou Y. Multiscale structure and precipitation mechanism of debranched starch precipitated by different alcohols. Int J Biol Macromol 2023; 241:124562. [PMID: 37088190 DOI: 10.1016/j.ijbiomac.2023.124562] [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: 12/30/2022] [Revised: 02/22/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Alcohol solution is a cheap, simple, and effective precipitating solvent frequently used for separating debranched starch (DBS), yet little is known about the precipitation mechanism of DBS by different alcohols. This study precipitated DBS from pullulanase-hydrolyzed starch using ethanol, n-butanol, and isopentanol. The multiscale structures of DBS were characterized, including chain length, single/double helix, and crystalline. The chain conformation and precipitation mechanism of DBS in different alcohols was investigated using molecular dynamics (MD) simulation. DBS precipitated by n-butanol contained the largest proportion of short chain (DP6-24, 83.2 %), the highest V-type crystallinity (21.1 %), and the largest single-helix content (24.7 %). A single helix conformation of DBS chain was determined in alcohols, where alcohol molecules entered the helix cavity. Intra/inter-molecular hydrogen bonds stabilized the helix, with a large number of hydrogen bonds leading to strong molecular interaction and stable helical structure. The solvent accessible surface area of DBS chain decreased by 7.88-19.32 % in alcohols, and the radial distribution function revealed that the first solvent layer of DBS chain at 0.29 nm was closely related to hydrogen bonding. This study provides a basis for the choice of precipitation solvent for preparing DBS with different chain lengths and physicochemical properties.
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Affiliation(s)
- Changyue Deng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Tiantian Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Xiumei Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Tingting Gu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Li Xu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Zhenyu Yu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Mingming Zheng
- Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China; Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Yibin Zhou
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China.
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9
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Zhai J, Li X, Svensson B, Jin Z, Bai Y. Increasing Protein Content of Rice Flour with Maintained Processability by Using Granular Starch Hydrolyzing Enzyme. Molecules 2023; 28:molecules28083522. [PMID: 37110757 PMCID: PMC10141220 DOI: 10.3390/molecules28083522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/12/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
Rice flour (RF) has become a promising food material. In the present study, RF with higher protein content was prepared using a granular starch hydrolyzing enzyme (GSHE). Particle size, morphology, crystallinity, and molecular structures of RF and rice starch (RS) were characterized to establish a hydrolytic mechanism; thermal, pasting, and rheological properties were determined to evaluate processability using differential scanning calorimetry (DSC), rapid viscosity analysis (RVA), and rheometer, respectively. The GSHE treatment resulted in pinholes, pits, and surface erosion through sequential hydrolysis of crystalline and amorphous areas on the starch granule surface. The amylose content decreased with hydrolysis time, while the very short chains (DP < 6) increased rapidly at 3 h but decreased slightly later. After hydrolysis for 24 h, the protein content in RF increased from 8.52% to 13.17%. However, the processability of RF was properly maintained. Specifically, the data from DSC showed that the conclusion temperature and endothermic enthalpy of RS barely changed. The result of rapid RVA and rheological measurement indicated that RF paste viscosity and viscoelastic properties dropped rapidly after 1 h hydrolysis and thereafter recovered slightly. This study provided a new RF raw material useful for improving and developing RF-based foods.
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Affiliation(s)
- Jinxing Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiaoxiao Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Birte Svensson
- Enzyme and Protein Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Yuxiang Bai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
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10
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Zhang X, Cheng Y, Jia X, Geng D, Bian X, Tang N. Effects of Extraction Methods on Physicochemical and Structural Properties of Common Vetch Starch. Foods 2022; 11:foods11182920. [PMID: 36141051 PMCID: PMC9498701 DOI: 10.3390/foods11182920] [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: 09/02/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Three extraction methods: water extraction, lactic acid bacteria fermentation, and back-slopping fermentation were applied to extract a new type of legume starch, common vetch starch. Our results showed that the lactic acid bacteria fermented starch had the highest amylose content (35.69%), followed by the back-slopping fermented starch (32.34%), and the water-extracted starch (30.25%). Furthermore, erosion surface, lower molecular weight, smaller particle size, larger specific surface area, and a higher proportion of B1 chain were observed in the fermented starch, especially in the back-slopping fermented starch. All the extracted starches showed a type C structure, but a type CB structure was observed in the back-slopping fermented starch. In addition, the relative crystallinity of the lactic acid bacteria fermented starch (34.16%) and the back-slopping fermented starch (39.43%) was significantly higher than that of the water-extracted starch (30.22%). Moreover, the swelling power, solubility, pasting, and thermal properties of the fermented starches were also improved. In conclusion, the fermentation extraction method, especially back-slopping fermentation, could improve the quality of the extracted common vetch starch when compared with the traditional water extraction method.
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Affiliation(s)
- Xiaojun Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Key Laboratory of Functional Food from Plant Resources, Beijing 100083, China
| | - Yongqiang Cheng
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Key Laboratory of Functional Food from Plant Resources, Beijing 100083, China
| | - Xin Jia
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Key Laboratory of Functional Food from Plant Resources, Beijing 100083, China
| | - Donghui Geng
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Key Laboratory of Functional Food from Plant Resources, Beijing 100083, China
| | - Xiaojia Bian
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Key Laboratory of Functional Food from Plant Resources, Beijing 100083, China
| | - Ning Tang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Beijing Key Laboratory of Functional Food from Plant Resources, Beijing 100083, China
- Correspondence: ; Tel.: +86-010-62737401
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