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Liu J, Dhital S, Ahmed Junejo S, Fu X, Huang Q, Zhang B. Structural changes and degradation mechanism of type 3 resistant starch during in vitro fecal fermentation. Food Res Int 2024; 190:114639. [PMID: 38945585 DOI: 10.1016/j.foodres.2024.114639] [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: 04/12/2024] [Revised: 06/11/2024] [Accepted: 06/11/2024] [Indexed: 07/02/2024]
Abstract
The colonic fermentation metabolites of resistant starch (RS) are recognized to have various health benefits. However, the relationship between the structural variation of RS and the colonic fermentation properties, remains inadequately studied, especially for type 3 resistant starch. The in vitro fecal fermentation properties with multi-structure evolution of A- and B-type polymorphic resistant starch spherulites (RSS) were investigated. Both polymorphic types of RSS showed similar fermentation rate and total short-chain fatty acid profiles, while the butyrate concentration of the A-type RSS subjected to 24 h of fermentation was significantly higher compared to B-type RSS. In the case of recrystallized starch spherulites, irrespective of the polymorphic type, gut bacteria preferentially degraded the intermediate chains and crystalline regions, as the local molecule-ordered area potentially serves as suitable attachment sites or surfaces for microbial enzymes.
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Affiliation(s)
- Jiaying Liu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Sushil Dhital
- Department of Chemical and Biological Engineering, Monash University, Clayton Campus, VIC 3800, Australia
| | - Shahid Ahmed Junejo
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Xiong Fu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Qiang Huang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Bin Zhang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health, Guangzhou 510640, China.
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2
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Li S, He R, Liu J, Chen Y, Yang T, Pan K. Rod-Shaped Starch from Galanga: Physicochemical Properties, Fine Structure and In Vitro Digestibility. Foods 2024; 13:1784. [PMID: 38891012 PMCID: PMC11171565 DOI: 10.3390/foods13111784] [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: 04/17/2024] [Revised: 05/27/2024] [Accepted: 06/04/2024] [Indexed: 06/20/2024] Open
Abstract
This work investigated the physicochemical properties, structural characteristics, and digestive properties of two non-conventional starches extracted from Galanga: Alpinia officinarum Hance starch (AOS) and Alpinia galanga Willd starch (AGS). The extraction rates of the two starches were 22.10 wt% and 15.73 wt%, which is lower than widely studied ginger (Zingiber officinale, ZOS). But they contained similar amounts of basic constituents. AOS and AGS showed a smooth, elongated shape, while ZOS was an oval sheet shape. AOS and ZOS were C-type starches, and AGS was an A-type starch. AOS showed the highest crystallinity (35.26 ± 1.02%) among the three starches, possessed a higher content of amylose (24.14 ± 0.73%) and a longer amylose average chain length (1419.38 ± 31.28) than AGS. AGS starch exhibits the highest viscosity at all stages, while AOS starch shows the lowest pasting temperature, and ZOS starch, due to its high amylose content, displays lower peak and trough viscosities. Significant differences were also found in the physicochemical properties of the three starches, including the swelling power, solubility, thermal properties, and rheological properties of the three starches. The total content of resistant starch (RS) and slowly digestible starch (SDS) in AOS (81.05%), AGS (81.46%), and ZOS (82.58%) are considered desirable. These findings proved to be valuable references for further research and utilization of ginger family starch.
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Affiliation(s)
- Shanshan Li
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China; (S.L.); (R.H.); (J.L.); (T.Y.)
| | - Rui He
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China; (S.L.); (R.H.); (J.L.); (T.Y.)
| | - Jiaqi Liu
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China; (S.L.); (R.H.); (J.L.); (T.Y.)
| | - Ying Chen
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Tao Yang
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China; (S.L.); (R.H.); (J.L.); (T.Y.)
| | - Kun Pan
- Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China; (S.L.); (R.H.); (J.L.); (T.Y.)
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3
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Zhong Y, Tian Y, Głazowska S, Blennow A, Shen L, Zhang A, Liu D, Liu X. Periodic changes in chain lengths distribution parameters of wheat starch during endosperm development. Food Chem 2023; 424:136455. [PMID: 37263096 DOI: 10.1016/j.foodchem.2023.136455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/30/2023] [Accepted: 05/22/2023] [Indexed: 06/03/2023]
Abstract
This study analyzed the molecular structure of developing wheat endosperm starch at different stages after anthesis (DAA) using chain length distribution analysis by size exclusion chromatography (SEC) and fluorophore-assisted carbohydrate electrophoresis. Our results revealed periodic changes in the content of both amylose and amylopectin fractions. Specifically, the content of amylose chains with a degree of polymerization (DP) > 100 significantly decreased from 5 to 10 DAA (28% to 21%) and from 15 to 20 DAA (29% to 26%), but increased between 10 and 15 DAA (21% to 29%) and 20 to 25 DAA (30.0% to 33%). Conversely, the content of short amylopectin chains with DP ≤ 32 showed the opposite trend. Interestingly, mRNA expression levels of key starch biosynthesis genes did not exhibit periodic changes. These findings contribute to our understanding of starch biosynthesis and provide important insights for the development of starch-based products.
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Affiliation(s)
- Yuyue Zhong
- Lab of Food Soft Matter Structure and Advanced Manufacturing, College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, China; Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Denmark
| | - Yu Tian
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Denmark
| | - Sylwia Głazowska
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Denmark
| | - Andreas Blennow
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Denmark
| | - Lisha Shen
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
| | - Aimin Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang District, Beijing 100101, China
| | - Dongcheng Liu
- State Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agricultural University, Baoding 071000, Hebei, China.
| | - Xingxun Liu
- Lab of Food Soft Matter Structure and Advanced Manufacturing, College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, China.
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Fox GP, Bettenhausen HM. Variation in quality of grains used in malting and brewing. FRONTIERS IN PLANT SCIENCE 2023; 14:1172028. [PMID: 37377804 PMCID: PMC10291334 DOI: 10.3389/fpls.2023.1172028] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/15/2023] [Indexed: 06/29/2023]
Abstract
Cereal grains have been domesticated largely from food grains to feed and malting grains. Barley (Hordeum vulgare L.) remains unparalleled in its success as a primary brewing grain. However, there is renewed interest in "alternative" grains for brewing (and distilling) due to attention being placed on flavor, quality, and health (i.e., gluten issues) aspects that they may offer. This review covers basic and general information on "alternative grains" for malting and brewing, as well as an in-depth look at several major biochemical aspects of these grains including starch, protein, polyphenols, and lipids. These traits are described in terms of their effects on processing and flavor, as well as the prospects for improvement through breeding. These aspects have been studied extensively in barley, but little is known about the functional properties in other crops for malting and brewing. In addition, the complex nature of malting and brewing produces a large number of brewing targets but requires extensive processing, laboratory analysis, and accompanying sensory analysis. However, if a better understanding of the potential of alternative crops that can be used in malting and brewing is needed, then significantly more research is required.
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Affiliation(s)
- Glen P. Fox
- Department of Food Science and Technology, University of California, Davis, Davis, CA, United States
| | - Harmonie M. Bettenhausen
- Center for Craft Food and Beverage, Hartwick College Center for Craft Food and Beverage, Oneonta, NY, United States
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Vela AJ, Villanueva M, Li C, Hamaker B, Ronda F. Ultrasound treatments of tef [Eragrostis tef (Zucc.) Trotter] flour rupture starch α-(1,4) bonds and fragment amylose with modification of gelatinization properties. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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6
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Variations in the Multilevel Structure, Gelatinization and Digestibility of Litchi Seed Starches from Different Varieties. Foods 2022; 11:foods11182821. [PMID: 36140947 PMCID: PMC9497979 DOI: 10.3390/foods11182821] [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: 07/29/2022] [Revised: 08/31/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022] Open
Abstract
Litchi seed starches from six varieties, as compared with maize starch, were studied for their multilevel structures, thermal and digestion properties to understand the distinct feather of each variety and provide guidance for their utilization in multi-industries. The results showed different varieties of litchi seed starch shared similar appearances with granules in oval shape and with a smooth surface. Starch granules of all the varieties exhibited typical bimodal size distributions consisting of small (<40 μm) and large granules (40−110 μm), although their relative proportions were largely dependent on variety. Huaizhi had the largest D50 value, whilst Guiwei showed the lowest. All the litchi seed starches had A-type crystalline with relative crystallinity varying from 20.67% (Huaizhi) to 26.76% (Guiwei). Similarly, the semi-crystalline structure varied apparently with variety. As to the chain-length distribution, only slight differences were observed among varieties, except Huaizhi displayed apparently higher amylose content (34.3%) and Guiwei showed the lowest (23.6%). Significant differences were also present in the gelatinization properties. Huaizhi seed starch showed significantly higher gelatinization temperatures and lower enthalpy change than the others. The digestibility of cooked litchi seed starches was only slightly different among varieties, suggesting variety is not the most critical factor regulating the digestibility of cooked litchi seed starch.
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Sultana S, Faruque M, Islam MR. Rice grain quality parameters and determination tools: a review on the current developments and future prospects. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2071295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sharmin Sultana
- IRRI-PPP Grain Quality Testing Laboratory, International Rice Research Institute, Los Baños, Bangladesh
| | - Muhiuddin Faruque
- IRRI-PPP Grain Quality Testing Laboratory, International Rice Research Institute, Los Baños, Bangladesh
| | - Md Rafiqul Islam
- IRRI-PPP Grain Quality Testing Laboratory, International Rice Research Institute, Los Baños, Bangladesh
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Zhou X, Wang C, Yue S, Zheng Y, Li C, Yu W. Mutual interactions between α‑amylase and amyloglucosidase on the digestion of starch with distinct chain-length distributions at fully gelatinized state. Food Funct 2022; 13:3453-3464. [PMID: 35244103 DOI: 10.1039/d1fo04256d] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amyloglucosidase (AMG) and α-amylase (AMY) are involved in the human small intestine for starch digestion, whereas their mutual interactions with starch molecules of distinct structures are still unknown. In current...
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Affiliation(s)
- Xianglong Zhou
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou City, 510632, China.
| | - Chenrui Wang
- University of Edinburgh Business School, 29 Buccleuch Place, Edinburgh, EH8 9JS, UK
| | - Shuke Yue
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou City, 510632, China.
| | - Yong Zheng
- School of Mathematics, South China University of Technology, Guangzhou, China
| | - Cheng Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Wenwen Yu
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou City, 510632, China.
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9
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Liu X, Huang S, Chao C, Yu J, Copeland L, Wang S. Changes of starch during thermal processing of foods: Current status and future directions. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2021.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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10
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Xu J, Li Z, Zhong Y, Zhou Q, Lv Q, Chen L, Blennow A, Liu X. The effects of molecular fine structure on rice starch granule gelatinization dynamics as investigated by in situ small-angle X-ray scattering. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.107014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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Zhou X, Yu W, Li C. Protein content correlates with the in vitro starch digestibility of raw barley flour. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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12
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Zhong Y, Li Z, Qu J, Bertoft E, Li M, Zhu F, Blennow A, Liu X. Relationship between molecular structure and lamellar and crystalline structure of rice starch. Carbohydr Polym 2021; 258:117616. [PMID: 33593533 DOI: 10.1016/j.carbpol.2021.117616] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/30/2020] [Accepted: 01/02/2021] [Indexed: 12/29/2022]
Abstract
The relationship between molecular structure and crystalline and lamellar structures of fifteen types of rice starches was studied. GPC and HPAEC were used for the molecular chain analysis and WAXS, SAXS, and CP/MAS 13C NMR were employed for aggregation structural analysis. The amylopectin content and the average lengths of fb1-chains (the degree of polymerization (DP) 13-24) were positively correlated with the amount of double helices (r2 = 0.92 and 0.57, respectively). In contrast, amylose content was positively correlated with the amounts of amorphous materials in starch (r2 = 0.77). The amount of double helices, which constitute a major part of the crystalline matrix, was positively correlated with the lamellar ordering (r2 = 0.81), and negatively correlated with the thickness of crystalline lamellae (r2 = 0.90) and lamellar repeat distance (r2 = 0.84). Conversely, the amount of the amorphous matrix was correlated with these parameters in the opposite way (r2 = 0.50, 0.75, and 0.75, respectively).
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Affiliation(s)
- Yuyue Zhong
- Lab of Food Soft Matter Structure and Advanced Manufacturing, College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, China; Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Denmark
| | - Zhihang Li
- Lab of Food Soft Matter Structure and Advanced Manufacturing, College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, China; Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jianzhou Qu
- Key Laboratory of Biology and Genetic Improvement of Maize in Arid Area of Northwest Region, Ministry of Agriculture, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Eric Bertoft
- Bertoft Solutions, Gamla Sampasvägen 18, 20960, Turku, Finland
| | - Ming Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Fan Zhu
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Andreas Blennow
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Denmark.
| | - Xingxun Liu
- Lab of Food Soft Matter Structure and Advanced Manufacturing, College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, China.
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Wang S, Dhital S, Wang K, Fu X, Zhang B, Huang Q. Side-by-side and exo-pitting degradation mechanism revealed from in vitro human fecal fermentation of granular starches. Carbohydr Polym 2021; 263:118003. [PMID: 33858585 DOI: 10.1016/j.carbpol.2021.118003] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/08/2021] [Accepted: 03/25/2021] [Indexed: 12/16/2022]
Abstract
The in vitro fecal fermentation characteristics and microbiota responses to A- and B-type polymorphic starches as model (whole) foods enriched with resistant starch was investigated. Marked difference in fermentation rate as well as microbial genera was observed during fermentation, the degradation pattern as well as structural evolution during fermentation was almost similar. The final butyrate concentrations of both HAMS and PS (ca. 38 mM) were significantly higher than that of WMS (23 mM) and NMS (33 mM), which was associated with the increase of the relative abundance of Roseburia, Blautia, and Lachnospiraceae. A-type polymorphic starches, on the other hand had remarkably faster fermentation rate and promoted Megamonas. X-ray diffraction and size-exclusion chromatography of residual starch during the fermentation course demonstrated the "side-by-side" fermentation pattern. Based on the structural changes observed, we conclude that in vitro fecal fermentation of starch granules predominantly controlled by the surface features rather than the molecular and supra-molecular structure.
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Affiliation(s)
- Shaokang Wang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, 510640, China; Sino-Singapore International Research Institute, Guangzhou, 510555, China
| | - Sushil Dhital
- Department of Chemical Engineering, Monash University, Clayton Campus, VIC, 3800, Australia
| | - Kai Wang
- School of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Xiong Fu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, 510640, China; Sino-Singapore International Research Institute, Guangzhou, 510555, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, 510640, China
| | - Bin Zhang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, 510640, China; Sino-Singapore International Research Institute, Guangzhou, 510555, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, 510640, China.
| | - Qiang Huang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, 510640, China; Sino-Singapore International Research Institute, Guangzhou, 510555, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, 510640, China.
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14
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Effects of endogenous proteins on rice digestion during small intestine (in vitro) digestion. Food Chem 2020; 344:128687. [PMID: 33272758 DOI: 10.1016/j.foodchem.2020.128687] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/24/2020] [Accepted: 11/17/2020] [Indexed: 11/20/2022]
Abstract
Rices with higher protein contents are nutritionally desirable. This study investigates the effects of endosperm proteins on starch in vitro digestibility in cooked and uncooked rice, and the mechanisms underlying any changes. The composition of rice endosperm proteins and the morphologies of proteins and starch granules were determined by SDS-PAGE and confocal microscopy. Starch molecular fine structure was examined using size-exclusion chromatography. In vitro digestion showed that the digestion rate coefficients (k) of cooked rice flour were significantly lower than those of isolated starch or of a starch-protein mixture. (e.g for samples from SWR4, k is 9.6, 12.9 and 11.6 × 10-2 min-1 for cooked rice flour, isolated starch and starch-protein mixture, respectively). For uncooked samples, digestion rate coefficients were 1.4, 1.5 and 1.8 × 10-2 min-1 for flour, starch-protein mixture and starch, respectively. The digestion rates in cooked samples were higher than those in uncooked samples. This suggests that, in cooked samples, starch digestion rates are more affected by the protein physical barrier than by some chemical effect (e.g. hydrogen bonding between protein and starch), while in uncooked samples, a chemical effect from protein is more pronounced than a physical barrier from protein.
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15
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Effect of biochar on rice starch properties and starch-related gene expression and enzyme activities. Sci Rep 2020; 10:16917. [PMID: 33037302 PMCID: PMC7547735 DOI: 10.1038/s41598-020-73888-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/23/2020] [Indexed: 11/08/2022] Open
Abstract
We determined the effects of biochar on starch properties and the activities of enzymes and expression levels of genes related to starch in two Japonica rice cultivars. The two rice varieties were subjected to five biochar treatments (0, control; and 5, 10, 20, and 40 t/hm2). In both rice varieties, the content of apparent amylose and resistant starch were lower in biochar treatments than in the control. The proportion of fa chains was higher and that of fb3 chain was lower in the biochar treatments than in the control. Starch viscosity and cooking taste quality were improved by the biochar treatments. In both rice varieties, the activity of granule-bound starch synthase was significantly decreased by biochar treatments, and the activities of soluble starch synthase, starch branching enzyme, and starch debranching enzyme were significantly increased. The transcript levels of genes encoding starch synthases and starch branching enzymes were significantly increased by biochar treatments. We conclude that biochar at a dose of 5-10 t/hm2 can regulate the activity of starch-related enzymes, and this affects the type, content, and fine structure of starch. Therefore, the addition of biochar to soil can improve the viscosity and taste quality of rice starch.
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16
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Bai Y, Zhang M, Chandra Atluri S, Chen J, Gilbert RG. Relations between digestibility and structures of pumpkin starches and pectins. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105894] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Li C, Hu Y, Huang T, Gong B, Yu WW. A combined action of amylose and amylopectin fine molecular structures in determining the starch pasting and retrogradation property. Int J Biol Macromol 2020; 164:2717-2725. [PMID: 32822732 DOI: 10.1016/j.ijbiomac.2020.08.123] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/08/2020] [Accepted: 08/13/2020] [Indexed: 12/20/2022]
Abstract
Starch fine molecular structures are of essentially important in determining its pasting and retrogradation properties. In this study, 10 different starches from various botanical sources were selected to investigate the combined action of amylose and amylopectin molecules in determining the starch physicochemical properties. Correlation between starch structural parameters with the pasting and retrogradation properties showed that amylose and amylopectin CLDs do not affect these properties in isolation. Such as, the amount of amylose long chains and amylopectin short chains are both positively correlated with the melting temperatures and enthalpy of retrograded starches. Furthermore, relatively longer amylose short to medium chains can result in higher trough and breakdown viscosity, while higher amount of amylopectin medium to long chains result in higher peak viscosity. The results help a better understanding of the importance of amylose and amylopectin fine molecular structures in determining starch functional properties.
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Affiliation(s)
- Cheng Li
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Yiming Hu
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai 200031, China
| | - Tao Huang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315800, China
| | - Bo Gong
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Wen-Wen Yu
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou City, China.
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Reyniers S, Ooms N, Gomand SV, Delcour JA. What makes starch from potato (Solanum tuberosumL.) tubers unique: A review. Compr Rev Food Sci Food Saf 2020; 19:2588-2612. [DOI: 10.1111/1541-4337.12596] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/02/2020] [Accepted: 06/12/2020] [Indexed: 01/21/2023]
Affiliation(s)
- Stijn Reyniers
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe)KU Leuven Leuven Belgium
| | - Nand Ooms
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe)KU Leuven Leuven Belgium
| | - Sara V. Gomand
- Department of Agriculture and FisheriesGovernment of Flanders Brussels Belgium
| | - Jan A. Delcour
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe)KU Leuven Leuven Belgium
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19
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Yu S, Du D, Wu AC, Bai Y, Wu P, Li C, Gilbert RG. Effects of Nonstarch Genetic Modifications on Starch Structure and Properties. Foods 2020; 9:foods9020222. [PMID: 32093175 PMCID: PMC7074516 DOI: 10.3390/foods9020222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 11/28/2022] Open
Abstract
This paper examines if, in maize, starch structure and starch-dependent properties might be altered by pleiotropic effects arising from genetic modifications that are not directly related to starch synthesis. The molecular structure, specifically the starch chain-length distributions (CLDs), of two maize lines transformed with Bar (bialaphos resistance) and Cry1c genes (an artificial gene, encoding proteinaceous insecticidal δ-endotoxins) were compared to those of their control lines. The two transgenes are responsible for herbicidal resistance and insect tolerance, respectively. The starch CLDs were measured by enzymatic debranching and measuring the molecular weight distributions of the resulting linear chains. It was found that although all the lines had similar amylose contents, the CLDs of both amylopectin and amylose for Cry1c were noticeably different from the others, having more short amylopectin and long amylose chains. These CLDs are known to affect functional properties, and indeed it was found that the Cry1c transgenic lines showed a lower gelatinization temperature and faster digestion rate than the control or Bar lines. However, a slower digestion rate is nutritionally desirable. Thus, pleiotropic effects from genetic modifications can indirectly but significantly affect the starch synthesis pathway and thus change functional properties of significance for human health.
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Affiliation(s)
- Shiyao Yu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; (S.Y.); (Y.B.); (C.L.)
- The University of Queensland, Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, Brisbane, QLD 4072, Australia;
| | - Dengxiang Du
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, Wuhan 430030, China;
| | - Alex C. Wu
- The University of Queensland, Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, Brisbane, QLD 4072, Australia;
| | - Yeming Bai
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; (S.Y.); (Y.B.); (C.L.)
- The University of Queensland, Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, Brisbane, QLD 4072, Australia;
| | - Peng Wu
- The University of Queensland, Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, Brisbane, QLD 4072, Australia;
- College of Chemistry and Chemical Engineering, Xiamen University, Fujian Province 361005, China
| | - Cheng Li
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; (S.Y.); (Y.B.); (C.L.)
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Robert G. Gilbert
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; (S.Y.); (Y.B.); (C.L.)
- The University of Queensland, Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, Brisbane, QLD 4072, Australia;
- Correspondence: ; Tel.: +61-41-22-15-144
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20
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Wu C, Wu QY, Wu M, Jiang W, Qian JY, Rao SQ, Zhang L, Li Q, Zhang C. Effect of pulsed electric field on properties and multi-scale structure of japonica rice starch. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108515] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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The size dependence of the average number of branches in amylose. Carbohydr Polym 2019; 223:115134. [DOI: 10.1016/j.carbpol.2019.115134] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 07/21/2019] [Accepted: 07/25/2019] [Indexed: 01/18/2023]
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22
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Henry RJ. Australian Wild Rice Populations: A Key Resource for Global Food Security. FRONTIERS IN PLANT SCIENCE 2019; 10:1354. [PMID: 31695720 PMCID: PMC6817564 DOI: 10.3389/fpls.2019.01354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/01/2019] [Indexed: 05/24/2023]
Abstract
Rice is one of the most important food crops contributing to the diet of large numbers of people especially in Asia. Rice (Oryza sativa) was domesticated in Asia many thousands of years ago and more recently independently in Africa. Wild rice populations are found around the tropical world. The extensive production of rice in many areas has displaced the wild populations that were the basis of the original domestications by humans. Recent research, reviewed here, has identified wild rice species in northern Australia that have been isolated from the impact of domestication in Asia. Wild rice populations contain novel alleles that are a source of desirable traits such as erect habit, disease resistance, large grain size, and unique starch properties. These populations include the most divergent genotypes within the primary gene pool of rice and more distant wild relatives. Genome sequencing also suggests the presence of populations that are close relatives of domesticated rice. Hybrid populations that demonstrate mechanisms of ongoing evolution of wild Oryza have been identified in the wild. These populations provide options for both new domestications and utilization of novel alleles to improve or adapt domesticated rice using conventional or preferably new breeding technologies. Climate change and growing food demands associated with population and economic growth are major challenges for agriculture including rice production. The availability of diverse genetic resources to support crop adaptation and new crop domestication is critical to continued production, and increased efforts to support in situ and ex situ conservation of wild Oryza and related species are warranted.
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23
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de Souza Moretti MM, Yu W, Zou W, Franco CML, Albertin LL, Schenk PM, Gilbert RG. Relationship between the molecular structure of duckweed starch and its in vitro enzymatic degradation kinetics. Int J Biol Macromol 2019; 139:244-251. [DOI: 10.1016/j.ijbiomac.2019.07.206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 01/27/2023]
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24
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Advances in Molecular Genetics and Genomics of African Rice ( Oryza glaberrima Steud). PLANTS 2019; 8:plants8100376. [PMID: 31561516 PMCID: PMC6843444 DOI: 10.3390/plants8100376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 02/07/2023]
Abstract
African rice (Oryza glaberrima) has a pool of genes for resistance to diverse biotic and abiotic stresses, making it an important genetic resource for rice improvement. African rice has potential for breeding for climate resilience and adapting rice cultivation to climate change. Over the last decade, there have been tremendous technological and analytical advances in genomics that have dramatically altered the landscape of rice research. Here we review the remarkable advances in knowledge that have been witnessed in the last few years in the area of genetics and genomics of African rice. Advances in cheap DNA sequencing technologies have fuelled development of numerous genomic and transcriptomic resources. Genomics has been pivotal in elucidating the genetic architecture of important traits thereby providing a basis for unlocking important trait variation. Whole genome re-sequencing studies have provided great insights on the domestication process, though key studies continue giving conflicting conclusions and theories. However, the genomic resources of African rice appear to be under-utilized as there seems to be little evidence that these vast resources are being productively exploited for example in practical rice improvement programmes. Challenges in deploying African rice genetic resources in rice improvement and the genomics efforts made in addressing them are highlighted.
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25
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Tao K, Yu W, Prakash S, Gilbert RG. High-amylose rice: Starch molecular structural features controlling cooked rice texture and preference. Carbohydr Polym 2019; 219:251-260. [DOI: 10.1016/j.carbpol.2019.05.031] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/29/2019] [Accepted: 05/08/2019] [Indexed: 01/18/2023]
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26
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Microstructure of indica and japonica rice influences their starch digestibility: A study using a human digestion simulator. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.02.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Zhang B, Zhou W, Qiao D, Zhang P, Zhao S, Zhang L, Xie F. Changes in Nanoscale Chain Assembly in Sweet Potato Starch Lamellae by Downregulation of Biosynthesis Enzymes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6302-6312. [PMID: 30925057 DOI: 10.1021/acs.jafc.8b06523] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Granule-bound starch synthase I (GBSSI) and starch-branching enzymes I and II (SBEI and SBEII) are crucial enzymes that biosynthesize starches with varied apparent amylose contents and amylopectin branching structure. With a sweet potato ( Ipomoea batatas [L.] Lam. cv. Xushu22), this work shows that downregulating GBSSI (for waxy starch) or SBE (for high-amylose starch) activity allowed the formation of new semicrystalline lamellae (named Type II) in sweet potato starch in addition to the widely reported Type I lamellae. Small-angle X-ray scattering (SAXS) results show that, compared with Type I lamellae, Type II lamellae displayed increased average thickness and thickness-distribution width, with thickened amorphous and crystalline components. The size-exclusion-chromatography (SEC) data revealed mainly two enzyme sets, (i) and (ii), synthesizing amylopectin chains. Reducing the GBSSI or SBE activity increased the amounts of amylopectin long chains (degree of polymerization (DP) ≥ 33). Combined SAXS and SEC analyses indicate that parts of these long chains from enzyme set (i) could be confined to Type II lamellae, followed by DP ≤ 32 short chains in Type I lamellae and the rest of the long chains from enzyme sets (i) and (ii) spanning more than a single lamella.
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Affiliation(s)
- Binjia Zhang
- Group for Cereals and Oils Processing, Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology , Huazhong Agricultural University , Wuhan 430070 , China
| | - Wenzhi Zhou
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences , Chinese Academy of Sciences , Shanghai 200032 , China
| | - Dongling Qiao
- Glyn O. Phillips Hydrocolloid Research Centre at HBUT , Hubei University of Technology , Wuhan 430068 , China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences , Chinese Academy of Sciences , Shanghai 200032 , China
| | - Siming Zhao
- Group for Cereals and Oils Processing, Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology , Huazhong Agricultural University , Wuhan 430070 , China
| | - Liang Zhang
- School of Food Science and Engineering , Yangzhou University , Yangzhou 225127 , China
| | - Fengwei Xie
- Institute of Advanced Study , University of Warwick , Coventry CV4 7HS , United Kingdom
- International Institute for Nanocomposites Manufacturing (IINM), WMG , University of Warwick , Coventry CV4 7AL , United Kingdom
- School of Chemical Engineering , The University of Queensland , Brisbane , Queensland 4072 , Australia
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28
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Qiao D, Tu W, Zhang B, Wang R, Li N, Nishinari K, Riffat S, Jiang F. Understanding the multi-scale structure and digestion rate of water chestnut starch. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.01.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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29
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Multi-scale structure and pasting/digestion features of yam bean tuber starches. Carbohydr Polym 2019; 213:199-207. [DOI: 10.1016/j.carbpol.2019.02.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/26/2019] [Accepted: 02/24/2019] [Indexed: 01/22/2023]
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30
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Characteristics of Flour and Starch Isolated from Red Rice Subjected to Different Drying Conditions. STARCH-STARKE 2019. [DOI: 10.1002/star.201800257] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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31
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Yao M, Tian Y, Yang W, Huang M, Zhou S, Liu X. The multi-scale structure, thermal and digestion properties of mung bean starch. Int J Biol Macromol 2019; 131:871-878. [PMID: 30905756 DOI: 10.1016/j.ijbiomac.2019.03.102] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/26/2019] [Accepted: 03/17/2019] [Indexed: 12/20/2022]
Abstract
Identification and selection one special variety mung bean for lower GI food is very useful, however, the fundamental study for mung bean starch is still insufficient to meet its demand. In this study, four varieties of mostly planted mung bean in China were selected as model materials. The multi-scale structure of mung bean starch was characterized by SEC, HPAEC, XRD, SAXS, and SEM. SEC and HPAEC give the amylose contents, amylose and amylopectin fine structure of mung bean starch. Mung bean starch from XRD spectrum display CA type semi crystallinity. The crystalline lamellar thickness from SAXS curves were 7.34-7.60 nm. DSC indicated that the peak gelatinization temperature is at 67 °C-68 °C. Resistant starch in mung bean disappears rapidly after cooking, although the amount of slowly digested starch was still more than half of the total starch. Since the gene backgrounds of the mung bean starch samples are very close, there was no obvious difference in their molecular and aggregated state structure, and the digestion properties were similar, too. Unique SEC and HPAEC profiles of starch chain length distribution can be utilized to help find more genetic resources and cultivate variety to meet the needs for starch applications.
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Affiliation(s)
- Mengdi Yao
- Institute of Food Science and Technology (IFST), Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
| | - Yu Tian
- Institute of Food Science and Technology (IFST), Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
| | - Wenjian Yang
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing 210023, China
| | - Mingquan Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University, Beijing 100048, China
| | - Sumei Zhou
- Institute of Food Science and Technology (IFST), Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
| | - Xingxun Liu
- Institute of Food Science and Technology (IFST), Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China.
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32
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Fox G, Yu W, Nischwitz R, Harasymow S. Variation in maltose in sweet wort from barley malt and rice adjuncts with differences in amylose structure. JOURNAL OF THE INSTITUTE OF BREWING 2018. [DOI: 10.1002/jib.546] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- G. Fox
- Queensland Alliance for Agriculture and Food Innovation; The University of Queensland; St Lucia Qld 4072 Australia
- Department of Food Science; Stellenbosch University; Stellenbosch South Africa
| | - W. Yu
- Queensland Alliance for Agriculture and Food Innovation; The University of Queensland; St Lucia Qld 4072 Australia
| | - R. Nischwitz
- Barrett Burston Malting Co; Gough St Richmond Victoria 3121 Australia
| | - S. Harasymow
- Australian Export Grains Innovation Centre; South Perth 6151 Australia
- Department of Primary Industries and Regional Development; Diagnostics and Laboratory Services Biosecurity and Sustainability, 3 Baron-Hay Court; South Perth WA 6151 Australia
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33
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Hierarchical Structure, Gelatinization, and Digestion Characteristics of Starch from Longan (Dimocarpus longan Lour.) Seeds. Molecules 2018; 23:molecules23123262. [PMID: 30544737 PMCID: PMC6321464 DOI: 10.3390/molecules23123262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 11/24/2018] [Accepted: 12/07/2018] [Indexed: 12/14/2022] Open
Abstract
Starch was isolated from longan seeds of three widely distributed cultivars (Chuliang, Shixia, and Caopu) in China. Comparisons of the multi-level structure of the starch of longan seeds among various cultivars were made, and the relations between these structural and property characteristics are discussed. The isolated starch, accounting for 44.9–49.5% (w/w) in longan seeds, had an oval or an irregular polygonal shape with a smooth surface. Their chain-length distributions (CLDs) varied with longan cultivar; Chuliang showed a larger proportion of longer amylopectin chains with a degree of polymerization (DP) 30~100. This is attributed to the slightly higher relative crystallinity of Chuliang longan seed starch. Apparent differences were also detected in amylose structure. Caopu showed a higher amylose content than Chuliang and Shixia, resulting in its lower gelatinization temperatures and enthalpy change. All longan seed starch had a typical A-type crystal structure with relative crystallinity ranging 28.6–28.9%. For raw starch, Caopu showed the lowest digestion rate, followed by Chuliang; Shixia showed the highest. This is because Caopu had the highest amylose content. Chuliang had a more intact structure than Shixia, as suggested by its higher crystallinity, although they had similar amylose content. After being fully gelatinized, all starch showed a similar digestion process, indicating that the digestibility of gelatinized starch does not differ with starch source or structure.
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34
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Feng G, Flanagan BM, Williams BA, Mikkelsen D, Yu W, Gidley MJ. Extracellular depolymerisation triggers fermentation of tamarind xyloglucan and wheat arabinoxylan by a porcine faecal inoculum. Carbohydr Polym 2018; 201:575-582. [DOI: 10.1016/j.carbpol.2018.08.089] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/20/2018] [Accepted: 08/20/2018] [Indexed: 01/01/2023]
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35
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Re-sequencing Resources to Improve Starch and Grain Quality in Rice. Methods Mol Biol 2018. [PMID: 30397808 DOI: 10.1007/978-1-4939-8914-0_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Next-generation sequencing can identify differences in the rice genome that explain the genetic basis of grain quality variation. Differences in rice grain quality are mainly associated with differences in the major component of the grain, starch. Association of rice quality variation with rice genome variation can be conducted at the gene or whole-genome level. Re-sequencing of specific genes or whole genomes can be used depending on the extent to which candidate genes for the traits of interest are known. Amplicon sequencing of genes involved in starch metabolism can help in targeted discovery of the molecular genetic basis of differences in starch related quality attributes. Whole-genome re-sequencing can complement this, when the genetic basis of the trait is expected to be outside the coding region of starch metabolism genes. These approaches have been used successfully to understand the rice genome at specific loci and over the whole genome.
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36
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Yu W, Tao K, Gilbert RG. Improved methodology for analyzing relations between starch digestion kinetics and molecular structure. Food Chem 2018; 264:284-292. [DOI: 10.1016/j.foodchem.2018.05.049] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 05/06/2018] [Accepted: 05/08/2018] [Indexed: 02/05/2023]
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37
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Zhou X, Ying Y, Hu B, Pang Y, Bao J. Physicochemical properties and digestibility of endosperm starches in four indica rice mutants. Carbohydr Polym 2018; 195:1-8. [DOI: 10.1016/j.carbpol.2018.04.070] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/25/2018] [Accepted: 04/17/2018] [Indexed: 11/30/2022]
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38
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Zhu A, Zhang Y, Zhang Z, Wang B, Xue P, Cao Y, Chen Y, Li Z, Liu Q, Cheng S, Cao L. Genetic Dissection of qPCG1 for a Quantitative Trait Locus for Percentage of Chalky Grain in Rice ( Oryza sativa L.). FRONTIERS IN PLANT SCIENCE 2018; 9:1173. [PMID: 30147703 PMCID: PMC6095994 DOI: 10.3389/fpls.2018.01173] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/23/2018] [Indexed: 05/18/2023]
Abstract
Rice is a pivotal cereal crop that provides the staple food for more than half of the world's population. Along with improvements in the standard of living, people not only pay attention to the grain yield but also to the grain quality. Chalkiness is one of the most important index of grain quality. In this study, qPCG1, a QTL for percentage of chalky grain, was mapped in an interval with a physical distance about 139 kb on chromosome 1 by residual heterozygous line (RHL) method. qPCG1 was incomplete dominant and the additive effect plays a major role and explained 6.8-21.9% of phenotypic variance within the heterogeneous region on chromosome 1. The effect of allele from Zhonghui9308 was decreasing the percentage of chalky grains (PCG). Microscope observation results indicated that there are great differences in the shape, structure and arrangement of starch granule between the chalky part and transparent part. Analysis of starch physicochemical properties showed that the total starch content, amylose content and chain length distribution of amylopectin changed while the protein contents were not apparently affected with the changed chalkiness. qPCG1 had little influence on main agronomic traits and it might be useful in rice breeding for it did not bring negative effect on grain yield while reducing the chalkiness.
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Affiliation(s)
- Aike Zhu
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- Nanchong Academy of Agricultural Sciences, Nanchong, China
| | - Yingxin Zhang
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Zhenhua Zhang
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Beifang Wang
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Pao Xue
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Yongrun Cao
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- Crop Genetic Breeding Department, Henan Agricultural University, Zhengzhou, China
| | - Yuyu Chen
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Zihe Li
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Qunen Liu
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Shihua Cheng
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Liyong Cao
- Key Laboratory for Zhejiang Super Rice Research, State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
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39
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Behera G, Sutar P. A comprehensive review of mathematical modeling of paddy parboiling and drying: Effects of modern techniques on process kinetics and rice quality. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.03.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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40
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Feng G, Flanagan BM, Mikkelsen D, Williams BA, Yu W, Gilbert RG, Gidley MJ. Mechanisms of utilisation of arabinoxylans by a porcine faecal inoculum: competition and co-operation. Sci Rep 2018. [PMID: 29540852 PMCID: PMC5852058 DOI: 10.1038/s41598-018-22818-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Recent studies show that a single or small number of intestinal microbes can completely degrade complex carbohydrates. This suggests a drive towards competitive utilisation of dietary complex carbohydrates resulting in limited microbial diversity, at odds with the health benefits associated with a diverse microbiome. This study investigates the enzymatic metabolism of wheat and rye arabinoxylans (AX) using in vitro fermentation, with a porcine faecal inoculum. Through studying the activity of AX-degrading enzymes and the structural changes of residual AX during fermentation, we show that the AX-degrading enzymes are mainly cell-associated, which enables the microbes to utilise the AX competitively. However, potential for cross-feeding is also demonstrated to occur by two distinct mechanisms: (1) release of AX after partial degradation by cell-associated enzymes, and (2) release of enzymes during biomass turnover, indicative of co-operative AX degradation. This study provides a model for the combined competitive-co-operative utilisation of complex dietary carbohydrates by gut microorganisms.
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Affiliation(s)
- Guangli Feng
- ARC Centre of Excellence in Plant Cell Walls, Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Bernadine M Flanagan
- ARC Centre of Excellence in Plant Cell Walls, Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Deirdre Mikkelsen
- ARC Centre of Excellence in Plant Cell Walls, Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Barbara A Williams
- ARC Centre of Excellence in Plant Cell Walls, Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Wenwen Yu
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Robert G Gilbert
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, College of Agriculture, Yangzhou University, Yangzhou, Jiangsu Province, 225009, China
| | - Michael J Gidley
- ARC Centre of Excellence in Plant Cell Walls, Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4072, Australia.
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41
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The adsorption of α-amylase on barley proteins affects the in vitro digestion of starch in barley flour. Food Chem 2018; 241:493-501. [DOI: 10.1016/j.foodchem.2017.09.021] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/12/2017] [Accepted: 09/04/2017] [Indexed: 12/27/2022]
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42
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Wambugu P, Ndjiondjop M, Furtado A, Henry R. Sequencing of bulks of segregants allows dissection of genetic control of amylose content in rice. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:100-110. [PMID: 28499072 PMCID: PMC5785344 DOI: 10.1111/pbi.12752] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/25/2017] [Accepted: 05/01/2017] [Indexed: 05/03/2023]
Abstract
Amylose content (AC) is a key quality trait in rice. A cross between Oryza glaberrima (African rice) and Oryza sativa (Asian rice) segregating for AC was analysed by sequencing bulks of individuals with high and low AC. SNP associated with the granule bound starch synthase (GBSS1) locus on chromosome 6 were polymorphic between the bulks. In particular, a G/A SNP that would result in an Asp to Asn mutation was identified. This amino acid substitution may be responsible for differences in GBSS activity as it is adjacent to a disulphide linkage conserved in all grass GBSS proteins. Other polymorphisms in genomic regions closely surrounding this variation may be the result of linkage drag. In addition to the variant in the starch biosynthesis gene, SNP on chromosomes 1 and 11 linked to AC was also identified. SNP was found in the genes encoding the NAC and CCAAT-HAP5 transcription factors that have previously been linked to starch biosynthesis. This study has demonstrated that the approach of sequencing bulks was able to identify genes on different chromosomes associated with this complex trait.
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Affiliation(s)
- Peterson Wambugu
- Queensland Alliance for Agriculture and Food InnovationUniversity of QueenslandBrisbaneQldAustralia
- Present address:
Kenya Agricultural and Livestock Research Organization (KALRO)Genetic Resources Research InstituteNairobiKenya
| | | | - Agnelo Furtado
- Queensland Alliance for Agriculture and Food InnovationUniversity of QueenslandBrisbaneQldAustralia
| | - Robert Henry
- Queensland Alliance for Agriculture and Food InnovationUniversity of QueenslandBrisbaneQldAustralia
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43
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Parameterizing amylose chain-length distributions for biosynthesis-structure-property relations. Anal Bioanal Chem 2017; 409:6813-6819. [PMID: 28948315 DOI: 10.1007/s00216-017-0639-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 02/06/2023]
Abstract
Amylose, one of the components of starch, is a glucose polymer consisting largely of long, linear chains with a few long-chain branch points. The chain-length (molecular weight) distribution (CLD) of the component chains of amylose can provide information on amylose biosynthesis-structure-property relations, as has been done previously by fitting amylopectin CLDs to a model with physically meaningful parameters. Due to the presence of long chains, the CLD of amylose can currently best be obtained by size-exclusion chromatography, a technique that suffers from band-broadening effects which alter the observed distribution. The features of the multiple regions present in amylose chain-length distributions are also difficult to resolve, an issue that combines with band broadening to compound the difficulty of analysis and subsequent parameterization of the structural characteristics of amylose. A new method is presented to fit these distributions with biologically meaningful parameters in a way that accounts for band broadening. This is achieved by assuming that band broadening takes the form of a simple Gaussian over a relatively small region and that chain stoppage is a random process independent of the length of the substrate chain over the same region; these assumptions are relatively weak and expected to be frequently applicable. The method provides inbuilt consistency tests for its applicability to a given data set and, in cases where it is applicable, allows for the first nonempirical parameterization of amylose biosynthesis-structure-property relations from CLDs by using parameters directly linked to the activities of the enzymes responsible for chain growth and chain stoppage. Graphical abstract Model calculation illustrating the method described and showing the division between the three characteristic regions of a typical amylose chain-length distribution.
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44
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Molecular structures and properties of starches of Australian wild rice. Carbohydr Polym 2017; 172:213-222. [DOI: 10.1016/j.carbpol.2017.05.046] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 05/13/2017] [Accepted: 05/16/2017] [Indexed: 11/20/2022]
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45
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Chang Y, Yan X, Wang Q, Ren L, Tong J, Zhou J. High efficiency and low cost preparation of size controlled starch nanoparticles through ultrasonic treatment and precipitation. Food Chem 2017; 227:369-375. [DOI: 10.1016/j.foodchem.2017.01.111] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 01/03/2017] [Accepted: 01/23/2017] [Indexed: 02/01/2023]
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46
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Xu J, Kuang Q, Wang K, Zhou S, Wang S, Liu X, Wang S. Insights into molecular structure and digestion rate of oat starch. Food Chem 2017; 220:25-30. [DOI: 10.1016/j.foodchem.2016.09.191] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/22/2016] [Accepted: 09/28/2016] [Indexed: 12/13/2022]
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47
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Zhang C, Chen S, Ren X, Lu Y, Liu D, Cai X, Li Q, Gao J, Liu Q. Molecular Structure and Physicochemical Properties of Starches from Rice with Different Amylose Contents Resulting from Modification of OsGBSSI Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2222-2232. [PMID: 28241110 DOI: 10.1021/acs.jafc.6b05448] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
OsGBSSI, encoded by the Waxy (Wx) gene, is the key enzyme in the synthesis of amylose chains. Transgenic rice lines with various GBSSI activities were previously developed via site-directed mutagenesis of the Wx gene in the glutinous cultivar Guanglingxiangnuo (GLXN). In this study, grain morphology, molecular structure, and physicochemical properties were investigated in four transgenic lines with modified OsGBSSI activity and differences in amylose content. A milky opaque appearance was observed in low- and non-amylose rice grains due to air spaces in the starch granules. Gel permeation chromatography (GPC) and high-performance anion-exchange chromatography (HPAEC) analyses showed that although OsGBSSI can synthesize intermediate and extra-long amylopectin chains, it is mainly responsible for the longer amylose chains. Amylose content was positively correlated with trough viscosity, final viscosity, setback viscosity, pasting time, pasting temperature, and gelatinization temperature and negatively with gel consistency, breakdown viscosity, gelatinization enthalpy, and crystallinity. Overall, the findings suggest that OsGBSSI may be also involved in amylopectin biosynthesis, in turn affecting grain appearance, thermal and pasting properties, and the crystalline structure of starches in the rice endosperm.
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Affiliation(s)
- Changquan Zhang
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
| | - Shengjie Chen
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
| | - Xinyu Ren
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
| | - Yan Lu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
| | - Derui Liu
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032, China
| | - Xiuling Cai
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
| | - Qianfeng Li
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
| | - Jiping Gao
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
| | - Qiaoquan Liu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University , Yangzhou 225009, China
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48
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Gao P, Wang F, Gu F, ning J, Liang J, Li N, Ludescher RD. Preparation and characterization of zein thermo-modified starch films. Carbohydr Polym 2017; 157:1254-1260. [DOI: 10.1016/j.carbpol.2016.11.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 09/12/2016] [Accepted: 11/02/2016] [Indexed: 02/07/2023]
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49
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Influence of ultrasonic treatment on formation of amylose nanoparticles prepared by nanoprecipitation. Carbohydr Polym 2017; 157:1413-1418. [DOI: 10.1016/j.carbpol.2016.11.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 11/03/2016] [Accepted: 11/06/2016] [Indexed: 02/06/2023]
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50
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Yu W, Tan X, Zou W, Hu Z, Fox GP, Gidley MJ, Gilbert RG. Relationships between protein content, starch molecular structure and grain size in barley. Carbohydr Polym 2017; 155:271-279. [DOI: 10.1016/j.carbpol.2016.08.078] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 08/03/2016] [Accepted: 08/25/2016] [Indexed: 12/13/2022]
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