1
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Chen X, Zhu L, Zhang H, Wu G, Cheng L, Zhang Y. A review of endogenous non-starch components in cereal matrix: spatial distribution and mechanisms for inhibiting starch digestion. Crit Rev Food Sci Nutr 2024:1-16. [PMID: 38920118 DOI: 10.1080/10408398.2024.2370487] [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: 06/27/2024]
Abstract
As compared with exogenous components, non-starch components (NSCS), such as proteins, lipids, non-starch polysaccharides (NSPs), and polyphenols, inherently present in cereals, are more effective at inhibiting starch digestibility. Existing research has mostly focused on complex systems but overlooked the analysis of the in-situ role of the NSCS. This study reviews the crucial mechanisms by which endogenous NSCS inhibit starch digestion, emphasizing the spatial distribution-function relationship. Starch granules are filled with pores/channels-associated proteins and lipids, embedding in the protein matrix, and maintained by endosperm cell walls. The potential starch digestion inhibition of endogenous NSCS is achieved by altering starch gelatinization, molecular structure, digestive enzyme activity, and accessibility. Starch gelatinization is constrained by endogenous NSCS, particularly cell wall NSPs and matrix proteins. The stability of the starch crystal structure is enhanced by the proteins and lipids distributed in the starch granule pores and channels. Endogenous polyphenols greatly inhibit digestive enzymes and participate in the cross-linking of NSPs in the cell wall space, which together constitute a physical barrier that hinders amylase diffusion. Additionally, the spatial entanglement of NSCS and starch under heat and non-heat processing conditions reduces starch accessibility. This review provides novel evidence for the health benefits of whole cereals.
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Affiliation(s)
- Xiaoyu Chen
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Ling Zhu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hui Zhang
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Gangcheng Wu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Lilin Cheng
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yayuan Zhang
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
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2
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Xiong W, Kumar G, Zhang B, Dhital S. Sonication-mediated modulation of macronutrient structure and digestibility in chickpea. ULTRASONICS SONOCHEMISTRY 2024; 106:106904. [PMID: 38749102 PMCID: PMC11109878 DOI: 10.1016/j.ultsonch.2024.106904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/05/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
Ultrasound processing is an emerging green technology that has the potential for wider application in the food processing industry. While the effects of ultrasonication on isolated macromolecules such as protein and starch have been reported, the effects of physical barriers on sonication on these macro-molecules, for example inside whole seed, tissue or cotyledon cells, have mostly been overlooked. Intact chickpea cells were subjected to sonication with different ultrasound processing times, and the effects of sonication on the starch and protein structure and digestibility were studied. The digestibility of these macronutrients significantly increased with the extension of processing time, which, however was not due to the molecular degradation of starch or protein but related to damage to cell wall macro-structure with increasing sonication time, leading to enhanced enzyme accessibility. Through this study, it is demonstrated that ultrasound processing has least effect on whole food structure, for example, whole seeds but can modulate the nutrient bioavailability without changing the properties of the macronutrients in seed fractions e.g. intact cells, offering new scientific knowledge on effect of ultrasound in whole foods at various length scales.
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Affiliation(s)
- Weiyan Xiong
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Gaurav Kumar
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Bin Zhang
- School of Food Science and Engineering, Overseas Expertise Introduction Centre for Discipline Innovation of Food Nutrition and Human Health, South China University of Technology, Guangzhou 510640, China
| | - Sushil Dhital
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia.
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3
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Zhu J, Han L, Wang M, Yang J, Fang Y, Zheng Q, Zhang X, Cao J, Hu B. Formation, influencing factors, and applications of internal channels in starch: A review. Food Chem X 2024; 21:101196. [PMID: 38370305 PMCID: PMC10869744 DOI: 10.1016/j.fochx.2024.101196] [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: 11/21/2023] [Revised: 01/28/2024] [Accepted: 02/03/2024] [Indexed: 02/20/2024] Open
Abstract
Starch, a natural polymer, has a complex internal structure. Some starches, such as corn and wheat starches, have well-developed surface pores and internal channels. These channel structures are considered crucial in connecting surface stomata and internal cavities and have adequate space for loading guest molecules. After processing or modification, the starch-containing channel structures can be used for food and drug encapsulation and delivery. This article reviews the formation and determination of starch internal channels, and the influence of different factors (such as starch species and processing conditions) on the channel structure. It also discusses relevant starch preparation methods (physical, chemical, enzymatic, and synergistic), and the encapsulation effect of starch containing internal channels on different substances. In addition, the role of internal channels in regulating the starch digestion rate and other aspects is also discussed here. This review highlights the significant multifunctional applications of starch with a channel structure.
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Affiliation(s)
- Junzhe Zhu
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Lingyu Han
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Meini Wang
- School of Life Science, College of Liberal Arts and Sciences, University of Westminster, United Kingdom
| | - Jixin Yang
- Faculty of Arts, Science and Technology, Wrexham Glyndwr University, Wrexham, United Kingdom
| | - Yapeng Fang
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qiuyue Zheng
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Xiaobo Zhang
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Jijuan Cao
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Bing Hu
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
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4
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Chen X, Zhang H, Zhu L, Wu G, Cheng L, Chen Y, Yin X, Zhang Y. The combined actions of the granule surface barrier and multiscale structural evolution of starch on in vitro digestion of oat flour. Int J Biol Macromol 2024; 259:129334. [PMID: 38218298 DOI: 10.1016/j.ijbiomac.2024.129334] [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: 10/18/2023] [Revised: 12/24/2023] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
The digestive properties of oat-based food have garnered considerable interest. This study aimed to explore the internal and external factors contributing to different digestion properties of oat flour under actual processing conditions. Analysis of the ordered structure of oat starch revealed that an increase in gelatinization moisture to 60 % led to a decrease in crystallinity, R1047/1022 value, and helical structures content to 0, 0.48 %, and 1.45 %, respectively. Even when the crystal structure was completely destroyed, the short-range structure retained a certain degree of order. Surface structure observations of starch granules and penetration experiments with amylase-sized polysaccharide fluorescence probes indicated that non-starch components and small pores effectively hindered the diffusion of the probes but low-moisture (20 %) gelatinization substantially damaged this barrier. Furthermore, investigations into starch digestibility and starch molecular structure revealed that the ordered structure remaining inside the starch after high gelatinization delayed the digestion rate (0.028 min-1) and did not increase the content of resistant starch (7.10 %). It was concluded that the surface structure and non-starch components of starch granules limited the extent of starch digestion, whereas the spatial barrier of the residual ordered structure affected the starch digestion rate.
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Affiliation(s)
- Xiaoyu Chen
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hui Zhang
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Ling Zhu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Gangcheng Wu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Lilin Cheng
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Yuhang Chen
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xianting Yin
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yayuan Zhang
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
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5
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Villwock VK, BeMiller JN. The architecture, nature, and mystery of starch granules. Part 1: A concise history of early investigations and certain granule parts. STARCH-STARKE 2022. [DOI: 10.1002/star.202100183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- V. Kurtis Villwock
- Whistler Center for Carbohydrate Research Department of Food Science (NLSN) Purdue University West Lafayette IN USA
| | - James N. BeMiller
- Whistler Center for Carbohydrate Research Department of Food Science (NLSN) Purdue University West Lafayette IN USA
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6
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Chapagai MK, Fletcher B, Witt T, Dhital S, Flanagan BM, Gidley MJ. Multiple length scale structure-property relationships of wheat starch oxidized by sodium hypochlorite or hydrogen peroxide. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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7
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Ma M, Chen X, Zhou R, Li H, Sui Z, Corke H. Surface microstructure of rice starch is altered by removal of granule-associated proteins. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.107038] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Li L, Cheng L, Li Z, Li C, Hong Y, Gu Z. Butyrylated starch protects mice from DSS-induced colitis: combined effects of butyrate release and prebiotic supply. Food Funct 2021; 12:11290-11302. [PMID: 34635904 DOI: 10.1039/d1fo01913a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Butyrate has recently emerged as a promising substance for the therapy of colitis. To overcome the shortcomings implicated in the existing delivery systems of butyrate, we utilized butyrylated starch to specifically deliver butyrate to the colon. Herein, we describe the stable loading of butyrate via chemical bonds with a heterogeneous distribution throughout the particle. Butyrylated starch supply increased butyrate as well as total short-chain fatty acid contents at the end of the intervention period. Moreover, butyrylated starch showed multiple effects on the suppression of DSS-induced colitis. From the observation of the gut-liver axis, reduced hepatic inflammation and hepatocyte damage further confirmed alleviated colonic inflammation. Given that butyrylated starch has the combined effects of specific release of butyrate in the colon and extra supply of fermentable substrates for gut microbiota, this work provides an effective strategy for the assistant therapy of colitis.
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Affiliation(s)
- Lingjin Li
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Li Cheng
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China. .,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China.,Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Zhaofeng Li
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China. .,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China.,Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Caiming Li
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China. .,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China.,Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Yan Hong
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China. .,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China.,Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Zhengbiao Gu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China. .,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China.,Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
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9
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Chen L, McClements DJ, Ma Y, Yang T, Ren F, Tian Y, Jin Z. Analysis of porous structure of potato starch granules by low-field NMR cryoporometry and AFM. Int J Biol Macromol 2021; 173:307-314. [PMID: 33476621 DOI: 10.1016/j.ijbiomac.2021.01.099] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 01/11/2021] [Accepted: 01/15/2021] [Indexed: 10/22/2022]
Abstract
Pore size distribution is a crucial structural element affecting the adsorption and diffusion of reagents and enzymes within starch granules. An accurate and credible method of determining the pore size distribution of starch granules especially for smooth ones is therefore required. In this work, low-field NMR cryoporometry (LF-NMRC) was applied to analyze the pore structure of potato starch (PS). The reliability of the LF-NMRC method is verified by comparing with the traditional method, i.e. the low temperature nitrogen adsorption (LT-NA). Both LF-NMRC and LT-NA could characterize the PS pore structure in mesoporous range. However, LF-NMRC has superiority over LT-NA in terms of the distinguishment and determination of pore size distribution approaching to the micropores, gives more accurate and reliable results than LT-NA does. Structural evidences from scanning electron microscope (SEM) and atomic force microscope (AFM) further indicated that the new proposed method is a non-destructive method that does not induce structural changes during sample preparation.
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Affiliation(s)
- Long Chen
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
| | | | - Yun Ma
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Tianyi Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Fei Ren
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Zhengyu Jin
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
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10
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Mei J, Zhang L, Lin Y, Li S, Bai C, Fu Z. Pasting, Rheological, and Thermal Properties and Structural Characteristics of Large and Small
Arenga pinnata
Starch Granules. STARCH-STARKE 2020. [DOI: 10.1002/star.201900293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jiang‐Yang Mei
- Institute of Light Industry and Food Engineering Guangxi University Nanning 530004 China
| | - Lu Zhang
- Institute of Light Industry and Food Engineering Guangxi University Nanning 530004 China
| | - Ying Lin
- Institute of Light Industry and Food Engineering Guangxi University Nanning 530004 China
| | - Shu‐Bo Li
- Institute of Light Industry and Food Engineering Guangxi University Nanning 530004 China
| | - Cong‐Hao Bai
- Institute of Light Industry and Food Engineering Guangxi University Nanning 530004 China
| | - Zhen Fu
- Institute of Light Industry and Food Engineering Guangxi University Nanning 530004 China
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11
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Wulff D, Chan A, Liu Q, Gu FX, Aucoin MG. Characterizing internal cavity modulation of corn starch microcapsules. Heliyon 2020; 6:e05294. [PMID: 33163649 PMCID: PMC7610249 DOI: 10.1016/j.heliyon.2020.e05294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/11/2020] [Accepted: 10/14/2020] [Indexed: 12/27/2022] Open
Abstract
Swelling of normal corn starch granules through heating in water leads to enlargement of the starch particles and a corresponding increase in internal cavity size. Through control of the swelling extent, it is possible to tune the size of the internal cavity for the starch microcapsules (SMCs). The swelling extent can be controlled through regulation of the swelling time and the swelling temperature. Since the swelling extent is correlated with particle size and solubility, these aspects may also be controlled. Imaging the SMCs at increasing levels of swelling extent using scanning electron microscopy (SEM) allowed for the internal cavity swelling process to be clearly observed. Brightfield and polarizing light microscopy validated the SEM observations. Confocal laser scanning microscopy provided further validation and indicated that it is possible to load the SMCs with large molecules through diffusion. The highly tunable SMCs are novel microparticles which could have applications in various industries.
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Affiliation(s)
- David Wulff
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
- Waterloo Institute for Nanotechnology, Waterloo, Ontario, N2L 3G1, Canada
| | - Ariel Chan
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, M5S 3E5, Canada
| | - Qiang Liu
- Guelph Research and Development Center, Agriculture and Agri-Food Canada, Guelph, Ontario N1G 5C9, Canada
| | - Frank X. Gu
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, M5S 3E5, Canada
| | - Marc G. Aucoin
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
- Waterloo Institute for Nanotechnology, Waterloo, Ontario, N2L 3G1, Canada
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12
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Chen L, Ma R, Zhang Z, McClements DJ, Qiu L, Jin Z, Tian Y. Impact of frying conditions on hierarchical structures and oil absorption of normal maize starch. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.105231] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Location and interactions of starches in planta: Effects on food and nutritional functionality. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.09.011] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Chen L, Ma R, Zhang Z, Huang M, Cai C, Zhang R, McClements DJ, Tian Y, Jin Z. Comprehensive investigation and comparison of surface microstructure of fractionated potato starches. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.10.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Qi X, Tester RF. Starch granules as active guest molecules or microorganism delivery systems. Food Chem 2019; 271:182-186. [DOI: 10.1016/j.foodchem.2018.07.177] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/18/2018] [Accepted: 07/25/2018] [Indexed: 11/26/2022]
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16
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Hong JS, Gomand SV, Huber KC, Delcour JA. Comparison of maize and wheat starch chain reactivity in relation to uniform versus surface oriented starch granule derivatization patterns. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Yakubov GE, Zhong L, Li M, Boehm MW, Xie F, Beattie DA, Halley PJ, Stokes JR. Lubrication of starch in ionic liquid–water mixtures: Soluble carbohydrate polymers form a boundary film on hydrophobic surfaces. Carbohydr Polym 2015; 133:507-16. [DOI: 10.1016/j.carbpol.2015.06.087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 06/18/2015] [Accepted: 06/29/2015] [Indexed: 01/01/2023]
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18
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Kansou K, Buléon A, Gérard C, Rolland-Sabaté A. Multivariate model to characterise relations between maize mutant starches and hydrolysis kinetics. Carbohydr Polym 2015; 133:497-506. [DOI: 10.1016/j.carbpol.2015.07.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 07/08/2015] [Accepted: 07/11/2015] [Indexed: 10/23/2022]
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19
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Fluorescence recovery after photobleaching in material and life sciences: putting theory into practice. Q Rev Biophys 2015; 48:323-87. [PMID: 26314367 DOI: 10.1017/s0033583515000013] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
AbstractFluorescence recovery after photobleaching (FRAP) is a versatile tool for determining diffusion and interaction/binding properties in biological and material sciences. An understanding of the mechanisms controlling the diffusion requires a deep understanding of structure–interaction–diffusion relationships. In cell biology, for instance, this applies to the movement of proteins and lipids in the plasma membrane, cytoplasm and nucleus. In industrial applications related to pharmaceutics, foods, textiles, hygiene products and cosmetics, the diffusion of solutes and solvent molecules contributes strongly to the properties and functionality of the final product. All these systems are heterogeneous, and accurate quantification of the mass transport processes at the local level is therefore essential to the understanding of the properties of soft (bio)materials. FRAP is a commonly used fluorescence microscopy-based technique to determine local molecular transport at the micrometer scale. A brief high-intensity laser pulse is locally applied to the sample, causing substantial photobleaching of the fluorescent molecules within the illuminated area. This causes a local concentration gradient of fluorescent molecules, leading to diffusional influx of intact fluorophores from the local surroundings into the bleached area. Quantitative information on the molecular transport can be extracted from the time evolution of the fluorescence recovery in the bleached area using a suitable model. A multitude of FRAP models has been developed over the years, each based on specific assumptions. This makes it challenging for the non-specialist to decide which model is best suited for a particular application. Furthermore, there are many subtleties in performing accurate FRAP experiments. For these reasons, this review aims to provide an extensive tutorial covering the essential theoretical and practical aspects so as to enable accurate quantitative FRAP experiments for molecular transport measurements in soft (bio)materials.
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20
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Liu D, Wellner N, Parker ML, Morris VJ, Cheng F. In situ mapping of the effect of additional mutations on starch granule structure in amylose-extender (ae) maize kernels. Carbohydr Polym 2015; 118:199-208. [DOI: 10.1016/j.carbpol.2014.11.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 11/06/2014] [Accepted: 11/09/2014] [Indexed: 10/24/2022]
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21
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Dhital S, Butardo VM, Jobling SA, Gidley MJ. Rice starch granule amylolysis – Differentiating effects of particle size, morphology, thermal properties and crystalline polymorph. Carbohydr Polym 2015; 115:305-16. [DOI: 10.1016/j.carbpol.2014.08.091] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 08/12/2014] [Accepted: 08/13/2014] [Indexed: 10/24/2022]
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22
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Cai C, Lin L, Man J, Zhao L, Wang Z, Wei C. Different structural properties of high-amylose maize starch fractions varying in granule size. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:11711-21. [PMID: 25392928 DOI: 10.1021/jf503865e] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Large-, medium-, and small-sized granules were separated from normal and high-amylose maize starches using a glycerol centrifugation method. The different-sized fractions of normal maize starch showed similar molecular weight distribution, crystal structure, long- and short-range ordered structure, and lamellar structure of starch, but the different-sized fractions of high-amylose maize starch showed markedly different structural properties. The amylose content, iodine blue value, amylopectin long branch-chain, and IR ratio of 1045/1022 cm(-1) significantly increased with decrease of granule size, but the amylopectin short branch-chain and branching degree, relative crystallinity, IR ratio of 1022/995 cm(-1), and peak intensity of lamellar structure markedly decreased with decrease of granule size for high-amylose maize starch. The large-sized granules of high-amylose maize starch were A-type crystallinity, native and medium-sized granules of high-amylose maize starch were CA-type crystallinity, and small-sized granules of high-amylose maize starch were C-type crystallinity, indicating that C-type starch might contain A-type starch granules.
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Affiliation(s)
- Canhui Cai
- Key Laboratories of Crop Genetics and Physiology of the Jiangsu Province and Plant Functional Genomics of the Ministry of Education, ‡Co-Innovation Center for Modern Production Technology of Grain Crops, and #Testing Center, Yangzhou University , Yangzhou 225009, China
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Man J, Lin L, Wang Z, Wang Y, Liu Q, Wei C. Different structures of heterogeneous starch granules from high-amylose rice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:11254-63. [PMID: 25373551 DOI: 10.1021/jf503999r] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
High-amylose cereal starches usually have heterogeneous starch granules in morphological structure. In the present study, the polygonal, aggregate, elongated, and hollow starch granules were separated from different regions of the kernels of high-amylose rice, and their structures were investigated. The results showed that the polygonal starch granules had low amylose content and high short branch-chain and branching degree of amylopectin, and exhibited A-type crystallinity. The aggregate starch granules had high long branch-chain of amylopectin, relative crystallinity, and double helix content, and exhibited C-type crystallinity. The elongated starch granules had high amylose content and low branching degree of amylopectin and relative crystallinity, and exhibited C-type crystallinity. The hollow starch granules had very high amylose content, proportion of amorphous conformation, and amylose-lipid complex, and very low branch-chain of amylopectin, branching degree of amylopectin, and double helix content, and exhibited no crystallinity. The different structures of heterogeneous starch granules from high-amylose rice resulted in significantly different thermal properties.
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Affiliation(s)
- Jianmin Man
- Key Laboratories of Crop Genetics and Physiology of the Jiangsu Province and Plant Functional Genomics of the Ministry of Education, ‡Co-Innovation Center for Modern Production Technology of Grain Crops, and §Testing Center, Yangzhou University , Yangzhou 225009, China
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Amylase binding to starch granules under hydrolysing and non-hydrolysing conditions. Carbohydr Polym 2014; 113:97-107. [DOI: 10.1016/j.carbpol.2014.06.063] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 06/13/2014] [Accepted: 06/16/2014] [Indexed: 11/20/2022]
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Zhang B, Wang K, Hasjim J, Li E, Flanagan BM, Gidley MJ, Dhital S. Freeze-drying changes the structure and digestibility of B-polymorphic starches. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:1482-1491. [PMID: 24471496 DOI: 10.1021/jf405196m] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Starch granules both isolated from plants and used in foods or other products have typically been dried. Common food laboratory and industry practices include oven (heat), freeze, and ethanol (solvent-exchange) drying. Starch granules isolated from maize (A-type polymorph) and potato (B-type polymorph) were used to understand the effects of different dehydration methods on starch structure and in vitro digestion kinetics. Oven and ethanol drying do not significantly affect the digestion properties of starches compared with their counterparts that have never been dried. However, freeze-drying results in a significant increase in the digestion rate of potato starch but not maize starch. The structural and conformational changes of starch granules after drying were investigated at various length scales using scanning electron microscopy, confocal laser scanning microscopy, X-ray diffraction, FTIR spectroscopy, and NMR spectroscopy. Freeze-drying not only disrupts the surface morphology of potato starch granules (B-type polymorph), but also degrades both short- and long-range molecular order of the amylopectin, each of which can cause an increase in the digestion rate. In contrast to A-polymorphic starches, B-polymorphic starches are more disrupted by freeze-drying, with reductions of both short- and long-range molecular order. We propose that the low temperatures involved in freeze-drying compared with oven drying result in greater chain rigidity and lead to structural disorganization during water removal at both nanometer and micrometer length scales in B-type polymorphic starch granules, because of the different distribution of water within crystallites and the lack of pores and channels compared with A-type polymorphic starch granules.
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Affiliation(s)
- Bin Zhang
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland , Brisbane, Queensland 4072, Australia
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