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Wang J, Xu X, Cui B, Wang B, Abd El-Aty AM. Changes in the properties of the corn starch glycerol film in a time-dependent manner during gelatinization. Food Chem 2024; 458:140183. [PMID: 38943954 DOI: 10.1016/j.foodchem.2024.140183] [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: 03/13/2024] [Revised: 06/08/2024] [Accepted: 06/20/2024] [Indexed: 07/01/2024]
Abstract
This study aimed to investigate the fundamental properties, solubility, mechanical properties, barrier performance, and microstructural features of films composed of corn starch and glycerol. Changes in the microstructure were analyzed to understand how they relate to the physical and chemical properties of these films. Specifically, we found that increasing the gelatinization time decreased the film thickness, solubility, water vapor permeability, and maximum degradation temperature and increased the water content. A gradual increase in the water contact angle of the corn starch-glycerol films was observed with increasing gelatinization time. This trend is likely due to the disruptive effect of gelatinization on the crystalline and amorphous structures inherent in corn starch, resulting in reduced film crystallinity, degree of order (DO) and degree of double helix (DD).
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Affiliation(s)
- Jiarui Wang
- Department of Food Science and Engineering, Shandong Agricultural University, Taian, 271018, China
| | - Xin Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
| | - Bo Cui
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
| | - Bin Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China; Department of Food Science and Engineering, Shandong Agricultural University, Taian, 271018, China; Shandong Qingyun Large Leaf Coriander Science and Technology Backyard, Dezhou 253600, Shandong, China.
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211-Giza, Egypt; Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum 25240, Turkey.
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2
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Zhang M, Hou Y, Chen X, Zhao P, Wang Z, Huang J, Hui C, Li C. Amylose molecular weight affects the complexing state and digestibility of the resulting starch-lipid complexes. Carbohydr Polym 2024; 342:122400. [PMID: 39048199 DOI: 10.1016/j.carbpol.2024.122400] [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: 03/26/2024] [Revised: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 07/27/2024]
Abstract
Previous RS5 (type 5 resistant starch) research has significantly broadened starch use and benefited society, yet the effects of the molecular weight of amylose on RS5 remain underexplored. In this study, amyloses with different molecular weights were complexed with caproic acid (C6), lauric acid (C12), and stearic acid (C18) to observe the effects of the molecular weight of amylose on the structure and in vitro digestive properties of RS5. Gel permeation chromatography revealed that the peak average molecular weight (Mp) values of high-amylose cornstarch NF-CGK (CGK), high-amylose cornstarch obtained via cornstarch via autoclave (high temperature and high pressure)-cooling combined pullulanase enzymatic hydrolysis (CTE), and high-amylose cornstarch NF-G370 (HCK) were 21,282, 171,537, and 188,084 before fatty acid complexation, respectively. Additionally, their weight average molecular weight (Mw) values of 32,429, 327,344, and 410,610 and hydrolysis rates of 58.12 %, 86.77 %, and 64.58 %, respectively. The hydrolysis rate of low-Mw amylose (GCK) complexes with fatty acids was lower than that of HCK and CTE starch-lipid complexes. However, HCK and CTE having similar molecular weights, there was no significant difference in the hydrolysis rate of starch-lipid complexes. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and complexing index analyses confirmed the formation of these complexes. This study proposed the mechanism of RS5 formation and provided guidance for its future development.
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Affiliation(s)
- Mingyi Zhang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Yinchen Hou
- College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China; Food Laboratory of Zhongyuan, Luohe 462300, China.
| | - Xinyang Chen
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Penghui Zhao
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Zhen Wang
- State Key Laboratory of Crop Stress Adaptation and Improvement College of Agriculture, Henan University Kaifeng 475004, China; Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Jihong Huang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China; College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China; State Key Laboratory of Crop Stress Adaptation and Improvement College of Agriculture, Henan University Kaifeng 475004, China; Food Laboratory of Zhongyuan, Luohe 462300, China.
| | - Chuanyin Hui
- College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China
| | - Chenyu Li
- College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China
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3
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Xu C, Li C, Li E, Gilbert RG. Insights into wheat-starch biosynthesis from two-dimensional macromolecular structure. Carbohydr Polym 2024; 337:122190. [PMID: 38710564 DOI: 10.1016/j.carbpol.2024.122190] [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: 09/22/2023] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 05/08/2024]
Abstract
Starch structure is often characterized by the chain-length distribution (CLD) of the linear molecules formed by breaking each branch-point. More information can be obtained by expanding into a second dimension: in the present case, the total undebranched-molecule size. This enables answers to questions unobtainable by considering only one variable. The questions considered here are: (i) are the events independent which control total size and CLD, and (ii) do ultra-long amylopectin (AP) chains exist (these chains cannot be distinguished from amylose chains using simple size separation). This was applied here to characterize the structures of one normal (RS01) wheat and two high-amylose (AM) mutant wheats (an SBEIIa knockout and an SBEIIa and SBEIIb knockout). Absolute ethanol was used to precipitate collected fractions, then size-exclusion chromatography for total molecular size and for the size of branches. The SBEIIa and SBEIIb mutations significantly increased AM and IC contents and chain length. The 2D plots indicated the presence of small but significant amounts of long-chain amylopectin, and the asymmetry of these plots shows that the corresponding mechanisms share some causal effects. These results could be used to develop plants producing improved starches, because different ranges of the chain-length distribution contribute independently to functional properties.
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Affiliation(s)
- Chen Xu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, PR China; Laboratory of Crop Genomics and Molecular Breeding, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, PR China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - Changfeng Li
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, PR China; Laboratory of Crop Genomics and Molecular Breeding, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, PR China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - Enpeng Li
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, PR China; Laboratory of Crop Genomics and Molecular Breeding, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, PR China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, Jiangsu, PR China
| | - Robert G Gilbert
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, PR China; Laboratory of Crop Genomics and Molecular Breeding, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genetics and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, PR China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, Jiangsu, PR China; Centre for Nutrition and Food Science, Queensland Alliance for Agricultural and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia.
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4
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Wang R, Wu X, Yi C, Feng W, Wang T, Luo X, Chen Z, Zhang H. Production and characterization of recrystallized linear α-glucans at different temperatures for controllable thermostability and digestibility. Food Chem 2024; 448:139156. [PMID: 38555688 DOI: 10.1016/j.foodchem.2024.139156] [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: 11/28/2023] [Revised: 03/11/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Molecular structure of linear α-glucans (LAGs) and crystallization temperature have great effects on the thermostability and digestibility of recrystallized LAGs, but the recrystallization behaviors of LAGs in response to temperature remain unclear. Here LAGs with different lengths were prepared from amylopectin via chain elongation and debranching. Recrystallization of LAGs at 4 °C yielded B-type crystalline structure with relative crystallinity ranged from 23.7% to 46.1%. With a chain length of 40.2, an A-type allomorph was observed for a slow recrystallization at 50 °C. Differential scanning calorimetry suggested that A-type crystal had a higher thermostability than the B-type crystal, and increasing LAGs' chain length improved the dimension of double helices, whose assembly produced starch crystallites that enhanced the thermostability and decreased the in vitro digestibility of recrystallized LAGs. An improved thermostability of recrystallized LAGs preserved their ordered structures and kept the resistance to digestive enzymes, with a RS content up to 75.4%.
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Affiliation(s)
- Ren Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangsu Provincial Research Centre for Bioactive Product Processing Technology, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Xiaoli Wu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangsu Provincial Research Centre for Bioactive Product Processing Technology, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Cuiping Yi
- School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha 410114, People's Republic of China
| | - Wei Feng
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangsu Provincial Research Centre for Bioactive Product Processing Technology, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Tao Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangsu Provincial Research Centre for Bioactive Product Processing Technology, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Xiaohu Luo
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, Zhejiang, People's Republic of China
| | - Zhengxing Chen
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangsu Provincial Research Centre for Bioactive Product Processing Technology, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Hao Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangsu Provincial Research Centre for Bioactive Product Processing Technology, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China.
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5
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Pesek S, Silaghi-Dumitrescu R. The Iodine/Iodide/Starch Supramolecular Complex. Molecules 2024; 29:641. [PMID: 38338385 PMCID: PMC10856212 DOI: 10.3390/molecules29030641] [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: 08/15/2023] [Revised: 01/21/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
The nature of the blue color in the iodine-starch reaction (or, in most cases, iodine-iodide-starch reaction, i.e., I2 as well as I- are typically present) has for decades elicited debate. The intensity of the color suggests a clear charge-transfer nature of the band at ~600 nm, and there is consensus regarding the fact that the hydrophobic interior of the amylose helix is the location where iodine binds. Three types of possible sources of charge transfer have been proposed: (1) chains of neutral I2 molecules, (2) chains of poly-iodine anions (complicated by the complex speciation of the I2-I- mixture), or (3) mixtures of I2 molecules and iodide or polyiodide anions. An extended literature review of the topic is provided here. According to the most recent data, the best candidate for the "blue complex" is an I2-I5--I2 unit, which is expected to occur in a repetitive manner inside the amylose helix.
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Affiliation(s)
| | - Radu Silaghi-Dumitrescu
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania;
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6
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Mokhtari Z, Jafari SM, Ziaiifar AM, Cacciotti I. Extraction, purification and characterization of amylose from sago and corn: Morphological, structural and molecular comparison. Int J Biol Macromol 2024; 255:128237. [PMID: 37981288 DOI: 10.1016/j.ijbiomac.2023.128237] [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: 10/22/2023] [Accepted: 11/16/2023] [Indexed: 11/21/2023]
Abstract
In the present work, a comprehensive study was carried out to better understand the molecular characteristics of amylose extracted from sago starch, using butanol as the extraction solvent. The sago derived amylose was compared with amylose extracted from corn starch and both characterized through different techniques, i.e. size exclusion chromatography, X-ray diffraction (XRD), Fourier transform infrared spectroscopy, Raman spectroscopy, Scanning electron microscopy, Atomic force microscopy and Zeta potential measurements. The purity of the amylose extracted from sago and corn was 99.20 % and 93.46 %, respectively. From XRD results, it was revealed that sago amylose had more crystallinity with high thermal stability compared to corn amylose. Based on Raman spectra, single and double helices formed in both extracted amyloses, but due to their intrinsic differences, the intensities associated with these helices varied for sago and corn amylose. Purified amyloses were shown to have two different forms of spherulite morphology: torus and spherical shapes with varying degrees of roughness. Our findings demonstrated that sago starch is a novel and low-cost source for supplying amylose, a promising polymer for different applications.
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Affiliation(s)
- Zohreh Mokhtari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran; Halal Research Center of IRI, Iran Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran.
| | - Aman Mohammad Ziaiifar
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Ilaria Cacciotti
- Engineering Department, INSTM RU, University of Rome "Niccolò Cusano", Rome, Italy
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7
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Li C, Wu A, Gilbert RG. Critical examination of the characterization techniques, and the evidence, for the existence of extra-long amylopectin chains. Compr Rev Food Sci Food Saf 2023; 22:4053-4073. [PMID: 37458307 DOI: 10.1111/1541-4337.13212] [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: 04/05/2023] [Revised: 06/15/2023] [Accepted: 06/29/2023] [Indexed: 09/13/2023]
Abstract
It has been suggested that amylopectin can contain small but significant amounts of extra-long chains (ELCs), which could affect functional properties, and also would have implications for the mechanism of starch biosynthesis. However, current evidence for the existence of ELCs is ambiguous. The amylose/amylopectin separation and the characterization techniques used for the investigation of ELCs are reviewed, problems in those techniques are examined, and studies of ELCs of amylopectin are discussed. A model for the biosynthesis of amylopectin chains in terms of conventional biosynthesis enzymes, which provides an excellent fit to a large amount of experimental data, is used to provide a rigorous definition of ELCs. In addition, current investigations of ELCs, involving separation, is hindered by the lack of a method to quantitatively separate all the amylopectin from starch without any traces of residual amylose (which would have long chains). Unambiguous evidence for the existence of ELCs can be obtained using two-dimensional (2D) characterization, these dimensions being the degree of polymerization of a chain and the size of the whole molecule. Available 2D data indicate that there are no ELCs present in currently detectable quantities in native rice starches. However, concluding this more rigorously requires improvements in the resolution of current 2D methods.
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Affiliation(s)
- Changfeng Li
- Department of Food Science and Engineering, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, China
| | - Alex Wu
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Australia
| | - Robert G Gilbert
- Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou, China
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Australia
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8
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Ali M, Cybulska J, Frąc M, Zdunek A. Application of polysaccharides for the encapsulation of beneficial microorganisms for agricultural purposes: A review. Int J Biol Macromol 2023; 244:125366. [PMID: 37327939 DOI: 10.1016/j.ijbiomac.2023.125366] [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: 01/03/2023] [Revised: 05/25/2023] [Accepted: 06/11/2023] [Indexed: 06/18/2023]
Abstract
Intensive farming practices have increased the consumption of chemical-based pesticides and fertilizers thereby creating health issues for humans and animals and also causing a deterioration in the natural ecosystem. The promotion of biomaterials synthesis could potentially lead to the replacement of synthetic products and improve soil fertility, protect plants from pathogen attacks, and enhance the productivity of the agricultural sector resulting in less environmental pollution. Microbial bioengineering involving the use and improvement of encapsulation using polysaccharides has the required potential to address environmental issues and promote green chemistry. This article describes various encapsulation techniques and polysaccharides which have an immense applicable capability to encapsulate microbial cells. The review elucidates the factors that may result in a reduced viable cell count during encapsulation, particularly using the spray drying method, where a high temperature is required to dry the suspension, this may damage the microbial cells. The environmental advantage of the application of polysaccharides as carriers of beneficial microorganisms, which do not pose a risk for soil due to their full biodegradability, was also shown. The encapsulated microbial cells may assist in addressing certain environmental problems such as ameliorating the unfavourable effects of plant pests and pathogens, and promoting agricultural sustainability.
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Affiliation(s)
- Mohsin Ali
- Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
| | - Justyna Cybulska
- Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland.
| | - Madgalena Frąc
- Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
| | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
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Kang S, Wu Z, Liu Y, Wang P, Zhang X, Ahmad M, Khan MR, Zhu W, Guo J, Jin Y, Xiao H, Song J. Morphology-induced differences in adsorption behaviors and strength enhancement performance for fiber networks between quaternized amylose and amylopectin. Int J Biol Macromol 2023:125013. [PMID: 37224910 DOI: 10.1016/j.ijbiomac.2023.125013] [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: 12/23/2022] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 05/26/2023]
Abstract
Cationic starch is the most widely used paper strength additive for papermaking wet end applications. However, it remains unclear how differently quaternized amylose (QAM) and amylopectin (QAP) are adsorbed on the fiber surface and their relative contribution to the inter-fiber bonding of papers. Herein, separated amylose and amylopectin were quaternized with different degrees of substitution (DS). After that, the adsorption behaviors of QAM and QAP on the fiber surface, the viscoelastic properties of the adlayers and their strength enhancement to fiber networks were comparatively characterized. Based on the results, the morphology visualizations of the starch structure displayed a strong impact on the adsorbed structural distributions of QAM and QAP. QAM adlayer with a helical linear or slightly branched structure was thin and rigid, while the QAP adlayer with a highly branched structure was thick and soft. In addition, the DS, pH and ionic strength had some impacts on the adsorption layer as well. Regarding the paper strength enhancement, the DS of QAM correlated positively to the paper strength, whereas the DS of QAP correlated inversely. The results provide a deep understanding of the impacts of starch morphology on performance and offer us some practical guidelines in starch selection.
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Affiliation(s)
- Shaomin Kang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhenghong Wu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Yena Liu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Peipei Wang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Xinyu Zhang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Mehraj Ahmad
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Mohammad Rizwan Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Wenyuan Zhu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Jiaqi Guo
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Yongcan Jin
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada.
| | - Junlong Song
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
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10
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Zhao C, Miao Z, Qi Q, Zheng Q, Mao Y, Chu Z, Zhang H, Xu X, Zheng M, Liu J. Interactions of soy protein isolate with common and waxy corn starches and their effects on acid-induced cold gelation properties of complexes. Food Chem X 2023; 18:100671. [PMID: 37091514 PMCID: PMC10119499 DOI: 10.1016/j.fochx.2023.100671] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/23/2023] [Accepted: 03/31/2023] [Indexed: 04/03/2023] Open
Abstract
Soy protein isolate (SPI) was mixed with different concentrations of common starch (CS) and waxy starch (WS) from corn. The interactions of SPI with CS or WS and their effects on the acid-induced cold gelation properties of complexes were investigated. Compared with WS, SPI could bind to CS more strongly and formed a tighter SPI-CS non-covalent complex, which resulted in the increased β-sheet and a more ordered secondary structure. The gel strength, water holding capacity (WHC), viscoelasticity, hydrophobic interactions and thermal stability of SPI-CS complex gels were enhanced as increasing CS concentration, and the complex with 2% of CS had the best gelation properties. Although adding WS reduced the gel strength, rheological properties and hydrophobic interactions of SPI-WS complex gels, it improved the WHC and thermal stability of the complex gels. Therefore, CS had a broader effect on improving acid-induced cold gelation properties of SPI than WS.
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11
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Li C, Ji Y, Zhang S, Yang X, Gilbert RG, Li S, Li E. Amylose Inter-Chain Entanglement and Inter-Chain Overlap Impact Rice Quality. Foods 2022; 11:foods11101516. [PMID: 35627085 PMCID: PMC9141181 DOI: 10.3390/foods11101516] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 11/25/2022] Open
Abstract
Retrogradation of cooked rice happens in two ways: one is by the formation of ordered structures, and the other is through intra- and inter-chain entanglement and inter-chain overlap, which in turn are affected by the amylose chain-length distribution. Both entanglement and overlap could affect rice texture. Here, four amylose samples were isolated from starch by precipitation from a dimethyl sulfoxide solution with butan-1-ol and isoamyl alcohol. Following enzymatic debranching, they were then characterized using size-exclusion chromatography. Amylose solutions (10%, m/v) were made by dissolving amylose in 90% (v/v) DMSO. Amylose gels (10%, w/v) were made by dissolving amylose powders into hot water, followed by cooling. The rigidity of the amylose gels and the structural order were measured using a texture analyzer and X-ray diffractometer, respectively. In the amylose solution, for a given mass of polymer in a fixed amount of solvent, the total occupied volume was reduced when the polymer molecular weight was smaller, resulting in less inter-chain overlap and a lower viscosity of the amylose solution. The overall mobility and diffusion of the molecules were inversely related to the square of the molecular weight until the gelation concentration. Thus, amylose gels in which amylose had a lower molecular weight had a greater chance to permeate into other molecules, which counterintuitively led to more inter-chain entanglement and more rigid amylose gels during retrogradation. This information could help rice breeders improve rice quality by using the molecular structure of starch as a guide.
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Affiliation(s)
- Changfeng Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology, State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, China; (C.L.); (Y.J.); (X.Y.); (R.G.G.); (S.L.)
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Yi Ji
- Jiangsu Key Laboratory of Crop Genetics and Physiology, State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, China; (C.L.); (Y.J.); (X.Y.); (R.G.G.); (S.L.)
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Shaobo Zhang
- Center for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Xiaoyan Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, China; (C.L.); (Y.J.); (X.Y.); (R.G.G.); (S.L.)
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Robert G. Gilbert
- Jiangsu Key Laboratory of Crop Genetics and Physiology, State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, China; (C.L.); (Y.J.); (X.Y.); (R.G.G.); (S.L.)
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Center for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Songnan Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology, State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, China; (C.L.); (Y.J.); (X.Y.); (R.G.G.); (S.L.)
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Enpeng Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology, State Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, China; (C.L.); (Y.J.); (X.Y.); (R.G.G.); (S.L.)
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- Correspondence:
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Differences in Eating Quality Attributes between Japonica Rice from the Northeast Region and Semiglutinous Japonica Rice from the Yangtze River Delta of China. Foods 2021; 10:foods10112770. [PMID: 34829057 PMCID: PMC8617791 DOI: 10.3390/foods10112770] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 11/16/2022] Open
Abstract
Differences in cooked rice and starch and protein physicochemical properties of three japonica rice were compared systematically. Cultivars of japonica rice, Daohuaxiang2, from Northeast China (NR) and two semiglutinous japonica rice (SGJR), Nangeng46 and Nangeng2728, from the Yangtze River Delta (YRD) were investigated. Both Daohuaxiang2 and Nangeng46 achieved high taste values, but there were great differences in starch and protein physicochemical properties. Daohuaxiang2 showed higher apparent amylose content (AAC), lower protein content (PC), and longer amylopectin (especially fb2 and fb3) and amylose chain lengths, resulting in thicker starch lamellae and larger starch granule size. Its cooked rice absorbed more water and expanded to larger sizes. All of these differences created a more compact gel network and harder but more elastic cooked rice for Daohuaxiang2. Nangeng46 produced a lower AAC, a higher PC, shorter amylopectin and amylose chain lengths, thinner starch lamellae, and smaller starch granule sizes, creating a looser gel network and softer cooked rice. The two SGJR, Nangeng46 and Nangeng2728, had similar low AACs but great differences in taste values. The better-tasting Nangeng46 had a lower PC (especially glutelin content) and higher proportion of amylopectin fa chains, which likely reduced the hardness, improved the appearance, and increased the adhesiveness of its cooked rice. Overall, both types of japonica rice from the NR and YRD could potentially have good eating qualities where Nangeng46's cooked rice was comparable to that of Daohuaxiang2 because of its lower AC. Moreover, its lower PC and higher proportion of amylopectin fa chains likely improved its eating quality over the inferior-tasting SGJR, Nangeng2728. This research lays a foundation for the improvement of the taste of japonica rice in rice breeding.
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Korompokis K, Verbeke K, Delcour JA. Structural factors governing starch digestion and glycemic responses and how they can be modified by enzymatic approaches: A review and a guide. Compr Rev Food Sci Food Saf 2021; 20:5965-5991. [PMID: 34601805 DOI: 10.1111/1541-4337.12847] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/19/2021] [Accepted: 08/25/2021] [Indexed: 12/15/2022]
Abstract
Starch is the most abundant glycemic carbohydrate in the human diet. Consumption of starch-rich food products that elicit high glycemic responses has been linked to the occurrence of noncommunicable diseases such as cardiovascular disease and diabetes mellitus type II. Understanding the structural features that govern starch digestibility is a prerequisite for developing strategies to mitigate any negative health implications it may have. Here, we review the aspects of the fine molecular structure that in native, gelatinized, and gelled/retrograded starch directly impact its digestibility and thus human health. We next provide an informed guidance for lowering its digestibility by using specific enzymes tailoring its molecular and three-dimensional supramolecular structure. We finally discuss in vivo studies of the glycemic responses to enzymatically modified starches and relevant food applications. Overall, structure-digestibility relationships provide opportunities for targeted modification of starch during food production and improving the nutritional profile of starchy foods.
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Affiliation(s)
- Konstantinos Korompokis
- Laboratory of Food Chemistry and Biochemistry, KU Leuven, Leuven, Belgium.,Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Kristin Verbeke
- Translational Research Center in Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium.,Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Jan A Delcour
- Laboratory of Food Chemistry and Biochemistry, KU Leuven, Leuven, Belgium.,Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
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Chi C, Li X, Huang S, Chen L, Zhang Y, Li L, Miao S. Basic principles in starch multi-scale structuration to mitigate digestibility: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.024] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Guo B, Wang Y, Pang M, Wu J, Hu X, Huang Z, Wang H, Xu S, Luo S, Liu C. Annealing treatment of amylose and amylopectin extracted from rice starch. Int J Biol Macromol 2020; 164:3496-3500. [DOI: 10.1016/j.ijbiomac.2020.08.245] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/07/2020] [Accepted: 08/31/2020] [Indexed: 10/23/2022]
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Guo B, Hu X, Deng F, Wu J, Luo S, Chen R, Liu C. Supernatant starch fraction of corn starch and its emulsifying ability: Effect of the amylose content. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105711] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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