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Chen K, Wei P, Jia M, Wang L, Li Z, Zhang Z, Liu Y, Shi L. Research Progress in Modifications, Bioactivities, and Applications of Medicine and Food Homologous Plant Starch. Foods 2024; 13:558. [PMID: 38397535 PMCID: PMC10888398 DOI: 10.3390/foods13040558] [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: 12/28/2023] [Revised: 02/03/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Starchy foods are an essential part of people's daily diet. Starch is the primary substance used by plants to store carbohydrates, and it is the primary source of energy for humans and animals. In China, a variety of plants, including edible medicinal plants, such as Pueraria root, yam tuber and coix seed, are rich in starch. However, limited by their inherent properties, kudzu starch and other starches are not suitable for the modern food industry. Natural starch is frequently altered by physical, chemical, or biological means to give it superior qualities to natural starch as it frequently cannot satisfy the demands of industrial manufacturing. Therefore, the deep processing market of modified starch and its products has a great potential. This paper reviews the modification methods which can provide excellent functional, rheological, and processing characteristics for these starches that can be used to improve the physical and chemical properties, texture properties, and edible qualities. This will provide a comprehensive reference for the modification and application of starch from medicinal and edible plants.
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Affiliation(s)
- Kai Chen
- Shangrao Innovation Institute of Agricultural Technology, College of Life Science, Shangrao Normal University, Shangrao 334001, China; (K.C.); (P.W.)
| | - Pinghui Wei
- Shangrao Innovation Institute of Agricultural Technology, College of Life Science, Shangrao Normal University, Shangrao 334001, China; (K.C.); (P.W.)
| | - Meiqi Jia
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (M.J.); (L.W.)
| | - Lihao Wang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (M.J.); (L.W.)
| | - Zihan Li
- State Key Laboratory of Food Science and Resources, Engineering Research Center for Biomass Conversion, Ministry of Education, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Z.L.); (Z.Z.)
| | - Zhongwei Zhang
- State Key Laboratory of Food Science and Resources, Engineering Research Center for Biomass Conversion, Ministry of Education, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Z.L.); (Z.Z.)
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Resources, Engineering Research Center for Biomass Conversion, Ministry of Education, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; (Z.L.); (Z.Z.)
| | - Lin Shi
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (M.J.); (L.W.)
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Bashir S, Farooq Z, Zafar S, Tufail T, Ain HBU, Hussain M, Al Jbawi E, Saha P, Kumar R, Nyarko RO. Recording Postprandial Glucose Reactions with Potato Starch Structural Improvements. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2023; 2023:1263896. [PMID: 38124783 PMCID: PMC10733000 DOI: 10.1155/2023/1263896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 10/26/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
The current study is aimed at modifying the structural makeup of potato starch through the application of heat and moisture to better control the postprandial glycemic response. Heat-moisture treatment (HMT) was used to prepare potato starch using different moisture levels and temperatures. The samples were digested with pancreatin to determine the % of easily digestible, slowly digestible, and resistant starch. Subjects were given pudding made with HMT potato starch, and their postprandial glycemic response was tracked by measuring their blood glucose levels. In addition, incremental and total incremental areas under the curve (IAUC, TIAUC) were also assessed. The current findings of in vitro enzymatic digestibility of potato starch showed inconsistent results as measured at different time intervals. Adding moisture and heating the mixture to 30 and 70°C both increased the amount of rapidly digestible starch in all of the treatments from 20 to 40%. The maximum value of slowly digestible starch was 43.63% when the sample was heated to 30°C with a moisture content of 30%. The highest value (68.46%) for resistant starch was achieved at 20% moisture level and 30°C. After eating pudding, blood sugar spiked for the first 60 and 90 min before gradually dropping off over the next 240 min. As a whole, the highest IAUC and TIAUC values, as well as the glycemic index and load, were observed in potato starch heated to 70°C, which contained 40% moisture. Most parameters achieved their highest values when 40% moisture was added and the heat was applied at 70°C.
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Affiliation(s)
- Sadaf Bashir
- Department of Food Science and Human Nutrition, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Zubair Farooq
- Department of Food Science and Human Nutrition, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Sobia Zafar
- Services Hospital, Jail Road, Lahore, Pakistan
| | - Tabussam Tufail
- University Institute of Diet & Nutritional Sciences, The University of Lahore, Lahore, Pakistan
| | - Huma Bader Ul Ain
- University Institute of Diet & Nutritional Sciences, The University of Lahore, Lahore, Pakistan
| | - Muzzamal Hussain
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | | | - Purabi Saha
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, Punjab, India
| | - Roshan Kumar
- Department of Pharmacy, Shree Dev Bhoomi Institute of Education Science and Technology, Dehradun, Uttarakhand, India
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de Sousa Ferreira M, de Oliveira Silva Ribeiro F, Dourado FF, de Jesus Oliveira AC, Araújo TDS, Brito LM, Pessoa C, de Lima LRM, de Paula RCM, Silva-Filho EC, da Silva DA. Production of galactan phthalates derivatives extracted from Gracilaria birdie: Characterization, cytotoxic and antioxidant profile. Int J Biol Macromol 2023; 243:125254. [PMID: 37295699 DOI: 10.1016/j.ijbiomac.2023.125254] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/11/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023]
Abstract
The present work explores the esterification reaction in the polysaccharide extracted from the seaweed Gracilaria birdiae and investigates its antioxidant potential. The reaction process was conducted with phthalic anhydride at different reaction times (10, 20 and 30 min), using a molar ratio of 1:2 (polymer: phthalic anhydride). Derivatives were characterized by FTIR, TGA, DSC and XRD. The biological properties of derivatives were investigated by assays of cytotoxicity and antioxidant activity (2,2-diphenyl-1-picrylhydroxyl - DPPH and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt - ABTS). The results obtained by FT-IR confirmed the chemical modification, there was a reduction related to the presence of carbonyl and hydroxyl groups when compared to the in nature polysaccharide spectrum. TGA analysis showed a change in the thermal behavior of the modified materials. X-ray diffraction, it was shown that the in nature polysaccharide appeared as an amorphous material, while the material obtained after the chemical modification process had increased crystallinity, due to the introduction of phthalate groups. For the biological assays, it was observed that the phthalate derivative was more selective than the unmodified material for the murine metastatic melanoma tumor cell line (B16F10), revealing a good antioxidant profile for DPPH and ABTS radicals.
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Affiliation(s)
- Michelle de Sousa Ferreira
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaíba Delta Federal University, UFDPar, Parnaíba, PI, Brazil; Interdisciplinary Laboratory for Advanced Materials - LIMAV, Federal University of Piaui, Teresina, PI, Brazil
| | - Fábio de Oliveira Silva Ribeiro
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaíba Delta Federal University, UFDPar, Parnaíba, PI, Brazil; Center for Research in Applied Morphology and Immunology, NuPMIA, University of Brasilia, Brasilia, Brazil
| | - Flaviane França Dourado
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaíba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Antônia Carla de Jesus Oliveira
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaíba Delta Federal University, UFDPar, Parnaíba, PI, Brazil; Interdisciplinary Laboratory for Advanced Materials - LIMAV, Federal University of Piaui, Teresina, PI, Brazil
| | - Thaís Danyelle Santos Araújo
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaíba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Lucas Moreira Brito
- Department of Physiology and Pharmacology, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | - Claudia Pessoa
- Department of Physiology and Pharmacology, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | | | | | | | - Durcilene Alves da Silva
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaíba Delta Federal University, UFDPar, Parnaíba, PI, Brazil; Interdisciplinary Laboratory for Advanced Materials - LIMAV, Federal University of Piaui, Teresina, PI, Brazil.
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4
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Laffargue T, Moulis C, Remaud-Simeon M. Phosphorylated polysaccharides: Applications, natural abundance, and new-to-nature structures generated by chemical and enzymatic functionalization. Biotechnol Adv 2023; 65:108140. [PMID: 36958536 DOI: 10.1016/j.biotechadv.2023.108140] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/14/2023] [Accepted: 03/18/2023] [Indexed: 03/25/2023]
Abstract
Polysaccharides are foreseen as serious candidates for the future generation of polymers, as they are biosourced and biodegradable materials. Their functionalisation is an attractive way to modify their properties, thereby increasing their range of applications. Introduction of phosphate groups in polysaccharide chains for the stimulation of the immune system was first described in the nineteen seventies. Since then, the use of phosphorylated polysaccharides has been proposed in various domains, such as healthcare, water treatment, cosmetic, biomaterials, etc. These alternative usages capitalize on newly acquired physico-chemical or biological properties, leading to materials as diverse as flame-resistant agents or drug delivery systems. Phosphorylated polysaccharides are found in Nature and need to be extracted to assess their biological potential. However, they are not abundant, often present complex backbones hard to characterize, and most of them have a low phosphate content. These drawbacks have pushed forward the development of chemical phosphorylation employing a wide variety of phosphorylating agents to obtain polysaccharides with a large range of phosphate content. Chemical phosphorylation requires the use of harsh conditions and toxic, petroleum-based solvents, which hinders their exploitation in the food and health industry. Over the last 20 years, although enzymes are regiospecific catalysts that work in aqueous and mild conditions, enzymatic phosphorylation has been little investigated. To date, only three families of enzymes have been used for the in vitro phosphorylation of polysaccharides. Considering the number of unresolved metabolic pathways leading to phosphorylated polysaccharides, the huge diversity of kinase sequences, and the recent progress in protein engineering one can envision native and engineered kinases as promising tools for polysaccharide phosphorylation.
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Affiliation(s)
- Thibaud Laffargue
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France
| | - Claire Moulis
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France
| | - Magali Remaud-Simeon
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135, Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France.
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5
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Tiamwong S, Yukhajon P, Noisong P, Subsadsana M, Sansuk S. Eco-Friendly Starch Composite Supramolecular Alginate–Ca2+ Hydrogel as Controlled-Release P Fertilizer with Low Responsiveness to Multiple Environmental Stimuli. Gels 2023; 9:gels9030204. [PMID: 36975653 PMCID: PMC10048729 DOI: 10.3390/gels9030204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/10/2023] Open
Abstract
Environmentally friendly fertilizers (EFFs) have been developed to improve fertilizer efficiency and minimize adverse environmental impacts, but their release behavior under various environmental conditions has been less explored. Using phosphorus (P) in the form of phosphate as a model nutrient, we present a simple method for preparing EFFs based on incorporating the nutrient into polysaccharide supramolecular hydrogels using Cassava starch in the Ca2+-induced cross-link gelation of alginate. The optimal conditions for creating these starch-regulated phosphate hydrogel beads (s-PHBs) were determined, and their release characteristics were initially evaluated in deionized water and then under various environmental stimuli, including pH, temperature, ionic strength, and water hardness. We found that incorporating a starch composite in s-PHBs at pH = 5 resulted in a rough but rigid surface and improved their physical and thermal stability, compared with phosphate hydrogel beads without starch (PHBs), due to the dense hydrogen bonding-supramolecular networks. Additionally, the s-PHBs showed controlled phosphate-release kinetics, following a parabolic diffusion with reduced initial burst effects. Importantly, the developed s-PHBs exhibited a promising low responsiveness to environmental stimuli for phosphate release even under extreme conditions and when tested in rice field water samples, suggesting their potential as a universally effective option for large-scale agricultural activities and potential value for commercial production.
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Affiliation(s)
- Supattra Tiamwong
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pratchayaporn Yukhajon
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Pittayagorn Noisong
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Maliwan Subsadsana
- Program of Chemistry, Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University, Nakhon Ratchasima 30000, Thailand
| | - Sira Sansuk
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence:
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6
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Frenett ML, Weis K, Cole MJ, Vargas JCC, Ramsay A, Huang J, Gentry MS, Vander Kooi CW, Raththagala M. Differential activity of glucan phosphatase starch EXcess4 orthologs from agronomic crops. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Dyrek K, Wenda E, Bidzińska E, Kruczała K. Effect of pH on the Redox and Sorption Properties of Native and Phosphorylated Starches. Molecules 2022; 27:5981. [PMID: 36144731 PMCID: PMC9501201 DOI: 10.3390/molecules27185981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
Starch is a common biopolymer that can be used for removing heavy metal ions from aqueous solutions. A valuable property of starch is its functional diversity, which can be enhanced by chemical modification. Hydroxyl groups enclosed in the starch and formed during hydrolysis act as reducing agents of Cr(VI). The sorption properties of native starch depend mainly on the presence of carboxyl groups formed during redox processes and basic centers created during acid hydrolysis, while the superiority of phosphorylated starch is related to the presence of phosphate groups binding Cr(III) ions. The effectiveness of starch depends on a series of equilibria established in its aqueous suspension and chromate ions solution, where the pH is the driving force for these processes. In this article, a systematic discussion of pH changes being the consequence of chemical reactions unraveling the extraordinary functionalities of starch was given. It also explained the influence of establishing equilibria and chemical modifications of starch on the efficiency of chromium ion removal. This allowed for the development of a comprehensive mechanism for the interaction of Cr(VI) and Cr(III) ions with native and phosphorylated starch.
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Affiliation(s)
| | | | | | - Krzysztof Kruczała
- Faculty of Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Krakow, Poland
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Ačkar Đ, Grec M, Grgić I, Gryszkin A, Styczyńska M, Jozinović A, Miličević B, Šubarić D, Babić J. Physical Properties of Starches Modified by Phosphorylation and High-Voltage Electrical Discharge (HVED). Polymers (Basel) 2022; 14:polym14163359. [PMID: 36015615 PMCID: PMC9414949 DOI: 10.3390/polym14163359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022] Open
Abstract
High-voltage electrical discharge (HVED) is considered as a novel, non-thermal process and is currently being researched regarding its effect on microorganisms (decontamination of food), waste water treatment, and modification of different compounds and food components. In this paper, four native starches (maize, wheat, potato, and tapioca) were treated with HVED, phosphorylated with Na2HPO4 and Na5P3O10, and modified by a combination of HVED with each phosphorylation reaction both prior and after chemical modification. Pasting properties, swelling power, solubility, gel texture, and particle size were analyzed. Although HVED induced lower contents of P in modified starches, it had an effect on analyzed properties. The results revealed that HVED treatment alone had a limited effect on pasting properties of starches, but it had an effect on properties of phosphorylated starches, both when it was conducted prior and after the chemical modification, reducing the influence of Na5P3O10 and Na2HPO4 on the decrease of pasting temperature. With minor exceptions, the gel strength of starches increased, and the rupture strength decreased by all modifications. HVED treatment resulted in a decrease of the particle size after the modification of maize and wheat starches, while potato and tapioca starches were not significantly influenced by the treatment.
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Affiliation(s)
- Đurđica Ačkar
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, 31000 Osijek, Croatia
- Correspondence:
| | - Marijana Grec
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, 31000 Osijek, Croatia
| | - Ivanka Grgić
- Institute of Public Health Brod-Posavina County, V. Nazora 2A, 35000 Slavonski Brod, Croatia
| | - Artur Gryszkin
- Department of Food Storage and Technology, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wroclaw, Poland
| | - Marzena Styczyńska
- Department of Human Nutrition, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wroclaw, Poland
| | - Antun Jozinović
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, 31000 Osijek, Croatia
| | - Borislav Miličević
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, 31000 Osijek, Croatia
- Polytechnic in Požega, Vukovarska ulica 17, 34000 Požega, Croatia
| | - Drago Šubarić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, 31000 Osijek, Croatia
| | - Jurislav Babić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, 31000 Osijek, Croatia
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Nakkala K, Godiyal S, Ettaboina SK, Laddha K. Chemical modifications of turmeric starch by Oxidation, Phosphorylation, and Succinylation. STARCH-STARKE 2022. [DOI: 10.1002/star.202200053] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Komalatha Nakkala
- Medicinal and Natural Products Research Laboratory Institute of Chemical Technology Matunga, Mumbai Mumbai 400019 India
| | - Shilpa Godiyal
- Medicinal and Natural Products Research Laboratory Institute of Chemical Technology Matunga, Mumbai Mumbai 400019 India
| | | | - K.S Laddha
- Medicinal and Natural Products Research Laboratory Institute of Chemical Technology Matunga, Mumbai Mumbai 400019 India
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10
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Fu Y, Jiang E, Yao Y. New Techniques in Structural Tailoring of Starch Functionality. Annu Rev Food Sci Technol 2022; 13:117-143. [PMID: 35080964 DOI: 10.1146/annurev-food-102821-035457] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Inherent characteristics of native starches such as water insolubility, retrogradation and syneresis, and instability in harsh processing conditions (e.g., high temperature and shearing, low pH) limit their industrial applications. As starch properties mainly depend on starch composition and structure, structural tailoring of starch has been important for overcoming functional limitations and expanding starch applications in different fields. In this review, we first introduce the basics of starch structure, properties, and functionalities and then describe the interactions of starch with lipids, polysaccharides, and phenolics. After reviewing genetic, chemical, and enzymatic modifications of starch, we describe current progress in the areas of porous starch and starch-based nanoparticles. New techniques, such as using the CRISPR-Cas9 technique to tailor starch structures and using an emulsion-assisted approach in forming functional starch nanoparticles, are only feasible when they are established based on fundamental knowledge of starch. Expected final online publication date for the Annual Review of Food Science and Technology, Volume 13 is March 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Yezhi Fu
- Department of Food Science, The Pennsylvania State University, University Park, Pennsylvania
| | - Evelyn Jiang
- Department of Food Science, Purdue University, West Lafayette, Indiana; .,Lincolnshire, Illinois
| | - Yuan Yao
- Department of Food Science, Purdue University, West Lafayette, Indiana;
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Kim KH, Kim JY. Understanding Wheat Starch Metabolism in Properties, Environmental Stress Condition, and Molecular Approaches for Value-Added Utilization. PLANTS (BASEL, SWITZERLAND) 2021; 10:2282. [PMID: 34834645 PMCID: PMC8624758 DOI: 10.3390/plants10112282] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/21/2021] [Accepted: 10/21/2021] [Indexed: 01/19/2023]
Abstract
Wheat starch is one of the most important components in wheat grain and is extensively used as the main source in bread, noodles, and cookies. The wheat endosperm is composed of about 70% starch, so differences in the quality and quantity of starch affect the flour processing characteristics. Investigations on starch composition, structure, morphology, molecular markers, and transformations are providing new and efficient techniques that can improve the quality of bread wheat. Additionally, wheat starch composition and quality are varied due to genetics and environmental factors. Starch is more sensitive to heat and drought stress compared to storage proteins. These stresses also have a great influence on the grain filling period and anthesis, and, consequently, a negative effect on starch synthesis. Sucrose metabolizing and starch synthesis enzymes are suppressed under heat and drought stress during the grain filling period. Therefore, it is important to illustrate starch and sucrose mechanisms during plant responses in the grain filling period. In recent years, most of these quality traits have been investigated through genetic modification studies. This is an attractive approach to improve functional properties in wheat starch. The new information collected from hybrid and transgenic plants is expected to help develop novel starch for understanding wheat starch biosynthesis and commercial use. Wheat transformation research using plant genetic engineering technology is the main purpose of continuously controlling and analyzing the properties of wheat starch. The aim of this paper is to review the structure, biosynthesis mechanism, quality, and response to heat and drought stress of wheat starch. Additionally, molecular markers and transformation studies are reviewed to elucidate starch quality in wheat.
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Affiliation(s)
- Kyung-Hee Kim
- Department of Life Science, Dongguk University-Seoul, Seoul 04620, Korea;
| | - Jae-Yoon Kim
- Department of Plant Resources, College of Industrial Science, Kongju National University, Yesan 32439, Korea
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12
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Engineering Properties of Sweet Potato Starch for Industrial Applications by Biotechnological Techniques including Genome Editing. Int J Mol Sci 2021; 22:ijms22179533. [PMID: 34502441 PMCID: PMC8431112 DOI: 10.3390/ijms22179533] [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: 07/26/2021] [Revised: 08/20/2021] [Accepted: 08/29/2021] [Indexed: 11/25/2022] Open
Abstract
Sweet potato (Ipomoea batatas) is one of the largest food crops in the world. Due to its abundance of starch, sweet potato is a valuable ingredient in food derivatives, dietary supplements, and industrial raw materials. In addition, due to its ability to adapt to a wide range of harsh climate and soil conditions, sweet potato is a crop that copes well with the environmental stresses caused by climate change. However, due to the complexity of the sweet potato genome and the long breeding cycle, our ability to modify sweet potato starch is limited. In this review, we cover the recent development in sweet potato breeding, understanding of starch properties, and the progress in sweet potato genomics. We describe the applicational values of sweet potato starch in food, industrial products, and biofuel, in addition to the effects of starch properties in different industrial applications. We also explore the possibility of manipulating starch properties through biotechnological means, such as the CRISPR/Cas-based genome editing. The ability to target the genome with precision provides new opportunities for reducing breeding time, increasing yield, and optimizing the starch properties of sweet potatoes.
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Mak CA, Weis K, Henao T, Kuchtova A, Chen T, Sharma S, Meekins DA, Thalmann M, Vander Kooi CW, Raththagala M. Cooperative Kinetics of the Glucan Phosphatase Starch Excess4. Biochemistry 2021; 60:2425-2435. [PMID: 34319705 DOI: 10.1021/acs.biochem.1c00307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Glucan phosphatases are members of a functionally diverse family of dual-specificity phosphatase (DSP) enzymes. The plant glucan phosphatase Starch Excess4 (SEX4) binds and dephosphorylates glucans, contributing to processive starch degradation in the chloroplast at night. Little is known about the complex kinetics of SEX4 when acting on its complex physiologically relevant glucan substrate. Therefore, we explored the kinetics of SEX4 against both insoluble starch and soluble amylopectin glucan substrates. SEX4 displays robust activity and a unique sigmoidal kinetic response to amylopectin, characterized by a Hill coefficient of 2.77 ± 0.63, a signature feature of cooperativity. We investigated the basis for this positive kinetic cooperativity and determined that the SEX4 carbohydrate-binding module (CBM) dramatically influences the binding cooperativity and substrate transformation rates. These findings provide insights into a previously unknown but important regulatory role for SEX4 in reversible starch phosphorylation and further advances our understanding of atypical kinetic mechanisms.
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Affiliation(s)
- Claudia A Mak
- Department of Chemistry, Skidmore College, Saratoga Springs, New York 12866, United States
| | - Kenyon Weis
- Department of Chemistry, Skidmore College, Saratoga Springs, New York 12866, United States
| | - Tiffany Henao
- Department of Chemistry, Skidmore College, Saratoga Springs, New York 12866, United States
| | - Andrea Kuchtova
- Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, Kentucky 40506, United States
| | - Tiantian Chen
- Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, Kentucky 40506, United States
| | - Savita Sharma
- Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, Kentucky 40506, United States
| | - David A Meekins
- Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, Kentucky 40506, United States
| | - Matthias Thalmann
- The John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - Craig W Vander Kooi
- Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, Kentucky 40506, United States
| | - Madushi Raththagala
- Department of Chemistry, Skidmore College, Saratoga Springs, New York 12866, United States
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14
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Easson MLAE, Malka O, Paetz C, Hojná A, Reichelt M, Stein B, van Brunschot S, Feldmesser E, Campbell L, Colvin J, Winter S, Morin S, Gershenzon J, Vassão DG. Activation and detoxification of cassava cyanogenic glucosides by the whitefly Bemisia tabaci. Sci Rep 2021; 11:13244. [PMID: 34168179 PMCID: PMC8225905 DOI: 10.1038/s41598-021-92553-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 06/10/2021] [Indexed: 11/19/2022] Open
Abstract
Two-component plant defenses such as cyanogenic glucosides are produced by many plant species, but phloem-feeding herbivores have long been thought not to activate these defenses due to their mode of feeding, which causes only minimal tissue damage. Here, however, we report that cyanogenic glycoside defenses from cassava (Manihot esculenta), a major staple crop in Africa, are activated during feeding by a pest insect, the whitefly Bemisia tabaci, and the resulting hydrogen cyanide is detoxified by conversion to beta-cyanoalanine. Additionally, B. tabaci was found to utilize two metabolic mechanisms to detoxify cyanogenic glucosides by conversion to non-activatable derivatives. First, the cyanogenic glycoside linamarin was glucosylated 1–4 times in succession in a reaction catalyzed by two B. tabaci glycoside hydrolase family 13 enzymes in vitro utilizing sucrose as a co-substrate. Second, both linamarin and the glucosylated linamarin derivatives were phosphorylated. Both phosphorylation and glucosidation of linamarin render this plant pro-toxin inert to the activating plant enzyme linamarase, and thus these metabolic transformations can be considered pre-emptive detoxification strategies to avoid cyanogenesis.
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Affiliation(s)
| | - Osnat Malka
- The Hebrew University of Jerusalem, 7610001, Rehovot, Israel.
| | - Christian Paetz
- Max Planck Institute for Chemical Ecology, 07745, Jena, Germany
| | - Anna Hojná
- Max Planck Institute for Chemical Ecology, 07745, Jena, Germany
| | | | - Beate Stein
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38104, Braunschweig, Germany
| | - Sharon van Brunschot
- Natural Resources Institute, University of Greenwich, Chatham Maritime, ME4 4TB, Kent, UK.,University of Queensland, Brisbane, QLD, 4072, Australia
| | | | - Lahcen Campbell
- EMBL-European Bioinformatics Institute, Cambridge, CB10 1SD, UK
| | - John Colvin
- Natural Resources Institute, University of Greenwich, Chatham Maritime, ME4 4TB, Kent, UK
| | - Stephan Winter
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38104, Braunschweig, Germany
| | - Shai Morin
- The Hebrew University of Jerusalem, 7610001, Rehovot, Israel
| | | | - Daniel G Vassão
- Max Planck Institute for Chemical Ecology, 07745, Jena, Germany.
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15
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Tappiban P, Ying Y, Xu F, Bao J. Proteomics and Post-Translational Modifications of Starch Biosynthesis-Related Proteins in Developing Seeds of Rice. Int J Mol Sci 2021; 22:5901. [PMID: 34072759 PMCID: PMC8199009 DOI: 10.3390/ijms22115901] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 12/25/2022] Open
Abstract
Rice (Oryza sativa L.) is a foremost staple food for approximately half the world's population. The components of rice starch, amylose, and amylopectin are synthesized by a series of enzymes, which are responsible for rice starch properties and functionality, and then affect rice cooking and eating quality. Recently, proteomics technology has been applied to the establishment of the differentially expressed starch biosynthesis-related proteins and the identification of posttranslational modifications (PTMs) target starch biosynthesis proteins as well. It is necessary to summarize the recent studies in proteomics and PTMs in rice endosperm to deepen our understanding of starch biosynthesis protein expression and regulation, which will provide useful information to rice breeding programs and industrial starch applications. The review provides a comprehensive summary of proteins and PTMs involved in starch biosynthesis based on proteomic studies of rice developing seeds. Starch biosynthesis proteins in rice seeds were differentially expressed in the developing seeds at different developmental stages. All the proteins involving in starch biosynthesis were identified using proteomics methods. Most starch biosynthesis-related proteins are basically increased at 6-20 days after flowering (DAF) and decreased upon the high-temperature conditions. A total of 10, 14, 2, 17, and 7 starch biosynthesis related proteins were identified to be targeted by phosphorylation, lysine acetylation, succinylation, lysine 2-hydroxyisobutyrylation, and malonylation, respectively. The phosphoglucomutase is commonly targeted by five PTMs types. Research on the function of phosphorylation in multiple enzyme complex formation in endosperm starch biosynthesis is underway, while the functions of other PTMs in starch biosynthesis are necessary to be conducted in the near future.
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Affiliation(s)
- Piengtawan Tappiban
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
| | - Yining Ying
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
| | - Feifei Xu
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
| | - Jinsong Bao
- Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China; (P.T.); (Y.Y.); (F.X.)
- Hainan Institute of Zhejiang University, Yazhou Bay Science and Technology City, Yazhou District, Sanya 572025, China
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16
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Razavi S, Janfaza S, Tasnim N, Gibson DL, Hoorfar M. Nanomaterial-based encapsulation for controlled gastrointestinal delivery of viable probiotic bacteria. NANOSCALE ADVANCES 2021; 3:2699-2709. [PMID: 36134186 PMCID: PMC9419840 DOI: 10.1039/d0na00952k] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/25/2021] [Indexed: 05/02/2023]
Abstract
Probiotics are microorganisms that have beneficial health effects when administered in adequate dosages. The oral administration of probiotic bacteria is widely considered beneficial for both intestinal as well as systemic health but its clinical efficacy is conflicted in the literature. This may at least in part be due to the loss of viability during gastrointestinal passage resulting in poor intestinal delivery. Microencapsulation technology has been proposed as a successful strategy to address this problem by maintaining the viability of probiotics, thereby improving their efficacy following oral administration. More recently, nanomaterials have demonstrated significant promise as encapsulation materials to improve probiotic encapsulation. The integration of nanotechnology with microencapsulation techniques can improve the controlled delivery of viable probiotic bacteria to the gut. The current review aims at summarizing the types of nanomaterials used for the microencapsulation of probiotics and showing how they can achieve the delivery and controlled release of probiotics at the site of action.
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Affiliation(s)
| | - Sajjad Janfaza
- School of Engineering, University of British Columbia Kelowna BC Canada
| | - Nishat Tasnim
- School of Engineering, University of British Columbia Kelowna BC Canada
| | - Deanna L Gibson
- Department of Biology, Faculty of Science, University of British Columbia Kelowna Canada
- Department of Medicine, Faculty of Medicine, University of British Columbia Vancouver Canada
| | - Mina Hoorfar
- School of Engineering, University of British Columbia Kelowna BC Canada
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17
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Adegoke TV, Wang Y, Chen L, Wang H, Liu W, Liu X, Cheng YC, Tong X, Ying J, Zhang J. Posttranslational Modification of Waxy to Genetically Improve Starch Quality in Rice Grain. Int J Mol Sci 2021; 22:4845. [PMID: 34063649 PMCID: PMC8124582 DOI: 10.3390/ijms22094845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 01/07/2023] Open
Abstract
The waxy (Wx) gene, encoding the granule-bound starch synthase (GBSS), is responsible for amylose biosynthesis and plays a crucial role in defining eating and cooking quality. The waxy locus controls both the non-waxy and waxy rice phenotypes. Rice starch can be altered into various forms by either reducing or increasing the amylose content, depending on consumer preference and region. Low-amylose rice is preferred by consumers because of its softness and sticky appearance. A better way of improving crops other than downregulation and overexpression of a gene or genes may be achieved through the posttranslational modification of sites or regulatory enzymes that regulate them because of their significance. The impact of posttranslational GBSSI modifications on extra-long unit chains (ELCs) remains largely unknown. Numerous studies have been reported on different crops, such as wheat, maize, and barley, but the rice starch granule proteome remains largely unknown. There is a need to improve the yield of low-amylose rice by employing posttranslational modification of Wx, since the market demand is increasing every day in order to meet the market demand for low-amylose rice in the regional area that prefers low-amylose rice, particularly in China. In this review, we have conducted an in-depth review of waxy rice, starch properties, starch biosynthesis, and posttranslational modification of waxy protein to genetically improve starch quality in rice grains.
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Affiliation(s)
- Tosin Victor Adegoke
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yifeng Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Lijuan Chen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Huimei Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Wanning Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Xingyong Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Yi-Chen Cheng
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Xiaohong Tong
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Jiezheng Ying
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
| | - Jian Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou 311400, China; (T.V.A.); (Y.W.); (L.C.); (H.W.); (W.L.); (X.L.); (Y.-C.C.); (X.T.); (J.Y.)
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18
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Advances in dietary polysaccharides as anticancer agents: Structure-activity relationship. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.008] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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19
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Zan K, Wang J, Ren F, Yu J, Wang S, Xie F, Wang S. Structural disorganization of cereal, tuber and bean starches in aqueous ionic liquid at room temperature: Role of starch granule surface structure. Carbohydr Polym 2021; 258:117677. [PMID: 33593553 DOI: 10.1016/j.carbpol.2021.117677] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/23/2020] [Accepted: 01/14/2021] [Indexed: 10/22/2022]
Abstract
The structural disorganization of different starches in a 1-ethyl-3-methylimidazolium acetate ([Emim][OAc])/water mixture (1:6 mol./mol.) at room temperature (25 °C) was studied. For normal cereal starches, which have pinholes randomly dispersed on the granule surface or only in the outermost annular region (wheat starch), the aqueous ionic liquid (IL) completely destroyed the granule structure within 1-1.5 h. Pea starch (PeS) granules with cracks were destroyed by the aqueous IL within 6 h. High-amylose maize starch (HAMS), as well as potato and purple yam starches (PoS and PYS), which have a dense and thick outer granule layer, were even more resistant to the action of the solvent. Structural disorganization was accompanied by increased viscosity and controlled the binding of water molecules with starch chains. From this study, we concluded that the surface characteristics of starch granule are an important factor affecting starch structural disorganization in an aqueous IL.
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Affiliation(s)
- Ke Zan
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China
| | - Jinwei Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China
| | - Fei Ren
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China
| | - Jinglin Yu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, 300071, China
| | - Fengwei Xie
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry, CV4 7AL, United Kingdom.
| | - Shujun Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China; College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
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20
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New Insights into the Co-Occurrences of Glycoside Hydrolase Genes among Prokaryotic Genomes through Network Analysis. Microorganisms 2021; 9:microorganisms9020427. [PMID: 33669523 PMCID: PMC7922503 DOI: 10.3390/microorganisms9020427] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/06/2021] [Accepted: 02/14/2021] [Indexed: 12/21/2022] Open
Abstract
Glycoside hydrolase (GH) represents a crucial category of enzymes for carbohydrate utilization in most organisms. A series of glycoside hydrolase families (GHFs) have been classified, with relevant information deposited in the CAZy database. Statistical analysis indicated that most GHFs (134 out of 154) were prone to exist in bacteria rather than archaea, in terms of both occurrence frequencies and average gene numbers. Co-occurrence analysis suggested the existence of strong or moderate-strong correlations among 63 GHFs. A combination of network analysis by Gephi and functional classification among these GHFs demonstrated the presence of 12 functional categories (from group A to L), with which the corresponding microbial collections were subsequently labeled, respectively. Interestingly, a progressive enrichment of particular GHFs was found among several types of microbes, and type-L as well as type-E microbes were deemed as functional intensified species which formed during the microbial evolution process toward efficient decomposition of lignocellulose as well as pectin, respectively. Overall, integrating network analysis and enzymatic functional classification, we were able to provide a new angle of view for GHs from known prokaryotic genomes, and thus this study is likely to guide the selection of GHs and microbes for efficient biomass utilization.
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21
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Jang HS, Lee J, Lee HJ, Park EY. Phytate-mediated phosphorylation of maize, rice, and potato starches at different pH conditions. Int J Biol Macromol 2020; 165:857-864. [DOI: 10.1016/j.ijbiomac.2020.09.245] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 11/30/2022]
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22
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Modification and application of polysaccharide from traditional Chinese medicine such as Dendrobium officinale. Int J Biol Macromol 2020; 157:385-393. [DOI: 10.1016/j.ijbiomac.2020.04.141] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/08/2020] [Accepted: 04/18/2020] [Indexed: 01/17/2023]
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23
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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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24
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Pfister B, Zeeman SC, Rugen MD, Field RA, Ebenhöh O, Raguin A. Theoretical and experimental approaches to understand the biosynthesis of starch granules in a physiological context. PHOTOSYNTHESIS RESEARCH 2020; 145:55-70. [PMID: 31955343 PMCID: PMC7308250 DOI: 10.1007/s11120-019-00704-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
Starch, a plant-derived insoluble carbohydrate composed of glucose polymers, is the principal carbohydrate in our diet and a valuable raw material for industry. The properties of starch depend on the arrangement of glucose units within the constituent polymers. However, key aspects of starch structure and the underlying biosynthetic processes are not well understood, limiting progress towards targeted improvement of our starch crops. In particular, the major component of starch, amylopectin, has a complex three-dimensional, branched architecture. This architecture stems from the combined actions of a multitude of enzymes, each having broad specificities that are difficult to capture experimentally. In this review, we reflect on experimental approaches and limitations to decipher the enzymes' specificities and explore possibilities for in silico simulations of these activities. We believe that the synergy between experimentation and simulation is needed for the correct interpretation of experimental data and holds the potential to greatly advance our understanding of the overall starch biosynthetic process. We furthermore propose that the formation of glucan secondary structures, concomitant with its synthesis, is a previously overlooked factor that directly affects amylopectin architecture through its impact on enzyme function.
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Affiliation(s)
- Barbara Pfister
- Department of Biology, Institute of Molecular Plant Biology, ETH Zurich, 8092, Zurich, Switzerland
| | - Samuel C Zeeman
- Department of Biology, Institute of Molecular Plant Biology, ETH Zurich, 8092, Zurich, Switzerland
| | - Michael D Rugen
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Robert A Field
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Oliver Ebenhöh
- Department of Biology, Institute of Quantitative and Theoretical Biology, Heinrich-Heine University, 40225, Düsseldorf, Germany
- Department of Biology, Cluster of Excellence on Plant Sciences, Institute of Quantitative and Theoretical Biology, Heinrich-Heine University, 40225, Düsseldorf, Germany
| | - Adélaïde Raguin
- Department of Biology, Institute of Quantitative and Theoretical Biology, Heinrich-Heine University, 40225, Düsseldorf, Germany.
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25
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Roman L, Yee J, Hayes AMR, Hamaker BR, Bertoft E, Martinez MM. On the role of the internal chain length distribution of amylopectins during retrogradation: Double helix lateral aggregation and slow digestibility. Carbohydr Polym 2020; 246:116633. [PMID: 32747268 DOI: 10.1016/j.carbpol.2020.116633] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/10/2020] [Accepted: 06/10/2020] [Indexed: 12/22/2022]
Abstract
A structure-digestion model is proposed to explain the formation of α-amylase-slowly digestible structures during amylopectin retrogradation. Maize and potato (normal and waxy) and banana starch (normal and purified amylopectin through alcohol precipitation), were analyzed for amylose ratio and size (HPSEC) and amylopectin unit- and internal-chain length distribution (HPAEC). Banana amylopectin (BA), like waxy potato (WP), exhibited a larger number of B3-chains, fewer BS- and Bfp-chains and lower S:L and BS:BL ratios than maize, categorizing BA structurally as type-4. WP exhibited a significantly greater tendency to form double helices (DSC and 13C-NMR) than BA, which was attributed to its higher internal chain length (ICL) and fewer DP6-12-chains. However, retrograded BA was remarkably more resistant to digestion than WP. Lower number of phosphorylated B-chains, more S- and Bfp-chains and shorter ICL, were suggested to result in α-amylase-slowly digestible structures through further lateral packing of double helices (suggested by thermo-rheology) in type-4 amylopectins.
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Affiliation(s)
- Laura Roman
- School of Engineering, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Josephine Yee
- School of Engineering, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Anna M R Hayes
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, 745 Agriculture Mall Drive, West Lafayette, IN 47907, USA
| | - Bruce R Hamaker
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, 745 Agriculture Mall Drive, West Lafayette, IN 47907, USA
| | - Eric Bertoft
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, 745 Agriculture Mall Drive, West Lafayette, IN 47907, USA
| | - Mario M Martinez
- School of Engineering, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada; Department of Food Science, iFOOD Multidisciplinary Center, Aarhus University, Agro Food Park 48, Aarhus N, 8200, Denmark.
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26
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Fang F, Luo X, Fei X, Mathews MAA, Lim J, Hamaker BR, Campanella OH. Stored Gelatinized Waxy Potato Starch Forms a Strong Retrograded Gel at Low pH with the Formation of Intermolecular Double Helices. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:4036-4041. [PMID: 32159957 DOI: 10.1021/acs.jafc.9b08268] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Waxy potato amylopectin has longer internal and external linear chains than rice or corn amylopectin that are capable of retrograding to a higher degree, but its molecular recrystallization is impeded by unprotonated phosphate groups. Here, we studied whether retrogradation and gel properties of waxy potato starch can be enhanced by lowering pH. The gel strength of waxy potato starch was strongly inversely correlated with pH, going from 10 to 4, and its magnitude was higher at pH values in which the ζ potential of the system was low. Waxy potato starch formed a strong aggregate gel driven by the formation of intermolecular double helices (G' drop25-95 °C ≈ 1358 Pa, melting ΔH = 9.5 J/g) when conditions that reduce electrostatic repulsion (pH 4, ζ = -1.7) are used, a phenomenon that was not observed in low-phosphorylated waxy cereal starches (i.e., waxy rice and corn).
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Affiliation(s)
- Fang Fang
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, Indiana 47906, United States
| | - Xuan Luo
- Whistler Center for Carbohydrate Research, Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana 47906, United States
| | - Xing Fei
- Whistler Center for Carbohydrate Research, Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana 47906, United States
| | | | - Jongbin Lim
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, Indiana 47906, United States
| | - Bruce R Hamaker
- Whistler Center for Carbohydrate Research, Department of Food Science, Purdue University, West Lafayette, Indiana 47906, United States
| | - Osvaldo H Campanella
- Whistler Center for Carbohydrate Research, Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana 47906, United States
- Department of Food Science and Technology, The Ohio State University, Columbus, Ohio 43210, United States
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27
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Ramadan MF, Sitohy MZ. Phosphorylated Starches: Preparation, Properties, Functionality, and Techno‐Applications. STARCH-STARKE 2020. [DOI: 10.1002/star.201900302] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mohamed Fawzy Ramadan
- Agricultural Biochemistry Department, Faculty of AgricultureZagazig University Zagazig 44519 Egypt
- Deanship of Scientific ResearchUmm Al‐Qura University Makkah P. O. Box 175 Kingdom of Saudi Arabia
| | - Mahmoud Z. Sitohy
- Agricultural Biochemistry Department, Faculty of AgricultureZagazig University Zagazig 44519 Egypt
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Thomas A, Joseph P, Moinuddin K, Zhu H, Tretsiakova-McNally S. Thermal and Calorimetric Evaluations of Some Chemically Modified Carbohydrate-Based Substrates with Phosphorus-Containing Groups. Polymers (Basel) 2020; 12:polym12030588. [PMID: 32150967 PMCID: PMC7182859 DOI: 10.3390/polym12030588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/19/2020] [Accepted: 02/23/2020] [Indexed: 11/16/2022] Open
Abstract
In the present article, we report on the chemical modifications of some carbohydrate-based substrates, such as potato starch, dextran, β-cyclodextrin, agar agar and tamarind, by reacting with diethylchlorophosphate (DECP), in dispersions in dichloromethane (DCM), in the presence of triethylamine (TEA) as the base. The modified substrates, after recovery and purification, were analyzed for their chemical constitutions, thermal stabilities and calorimetric properties using a variety of analytical techniques. These included: solid-state 31P NMR, inductively coupled plasma-optical emission spectroscopy (ICP-OES), thermogravimetric analysis (TGA) and pyrolysis combustion flow calorimetry (PCFC). The unmodified counterparts were also subjected to the same set of analyses with a view to serving as controls. Phosphorus analyses, primarily through ICP-OES on the recovered samples, showed different degrees of incorporation. Such observations were optionally verified through solid-state 31P NMR spectroscopy. The thermograms of the modified substrates were noticeably different from the unmodified counterparts, both in terms of the general profiles and the amounts of char residues produced. Such observations correlated well with the relevant parameters obtained through PCFC runs. Overall, the modified systems containing phosphorus were found to be less combustible than the parent substrates, and thus can be considered as promising matrices for environmentally benign fire-resistant coatings.
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Affiliation(s)
- Ananya Thomas
- Institute for Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia; (P.J.); (K.M.)
- Correspondence: ; Tel.: +61-3-9919-7605
| | - Paul Joseph
- Institute for Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia; (P.J.); (K.M.)
| | - Khalid Moinuddin
- Institute for Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia; (P.J.); (K.M.)
| | - Haijin Zhu
- Institute for Frontier Materials, Deakin University, Melbourne, VIC 3125, Australia;
| | - Svetlana Tretsiakova-McNally
- Belfast School of Architecture and the Built Environment, Ulster University, Newtownabbey BT37 0QB, Northern Ireland, UK;
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Balet S, Gous P, Fox G, Lloyd J, Manley M. Characterisation of starch quality from barley varieties grown in South Africa. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sandra Balet
- Department of Food Science Stellenbosch University Private Bag X1 Matieland (Stellenbosch) 7602 South Africa
| | - Peter Gous
- Centre for Nutrition and Food Science Queensland Alliance for Agriculture and Food Sciences The University of Queensland Hartley Teakle Building Brisbane QLD 4072 Australia
| | - Glen Fox
- Department of Food Science Stellenbosch University Private Bag X1 Matieland (Stellenbosch) 7602 South Africa
- Centre for Nutrition and Food Science Queensland Alliance for Agriculture and Food Sciences The University of Queensland Hartley Teakle Building Brisbane QLD 4072 Australia
| | - James Lloyd
- Institute for Plant Biotechnology Department of Genetics Stellenbosch University Matieland Stellenbosch South Africa
| | - Marena Manley
- Department of Food Science Stellenbosch University Private Bag X1 Matieland (Stellenbosch) 7602 South Africa
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Beninca C, Oliveira CS, Bet CD, Bisinella RZB, Gaglieri C, Schnitzler E. Effect of Ball Milling Treatment on Thermal, Structural, and Morphological Properties of Phosphated Starches from Corn and Pinhão. STARCH-STARKE 2020. [DOI: 10.1002/star.201900233] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cleoci Beninca
- State University of Ponta Grossa (UEPG) Av. Carlos Cavalcanti, 4748–Uvaranas Ponta Grossa PR 84030‐900 Brazil
- Federal Institute of EducationScience and Technology of Santa Catarina (IFSC) Av. Expedicionários, 2150–Campo da Água Verde Canoinhas SC 89460‐000 Brazil
| | - Cristina Soltovski Oliveira
- State University of Ponta Grossa (UEPG) Av. Carlos Cavalcanti, 4748–Uvaranas Ponta Grossa PR 84030‐900 Brazil
| | - Camila Delinski Bet
- State University of Ponta Grossa (UEPG) Av. Carlos Cavalcanti, 4748–Uvaranas Ponta Grossa PR 84030‐900 Brazil
| | | | - Caroline Gaglieri
- Paulista State University–UNESP–Campus Bauru Av. Eng. Luiz Edmundo Carrijo Coube, 14‐01–Vargem Limpa Bauru SP 17033‐360 Brazil
| | - Egon Schnitzler
- State University of Ponta Grossa (UEPG) Av. Carlos Cavalcanti, 4748–Uvaranas Ponta Grossa PR 84030‐900 Brazil
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Chemical modifications of polysaccharides and their anti-tumor activities. Carbohydr Polym 2019; 229:115436. [PMID: 31826393 DOI: 10.1016/j.carbpol.2019.115436] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 09/14/2019] [Accepted: 10/03/2019] [Indexed: 12/24/2022]
Abstract
With the rising trend of incidence of cancers, effective therapies are urgently needed to control human malignancies. However, the chemotherapy drugs currently on the market cause serious side effects. Polysaccharides belong to a class of biomacromolecules, which have drawn considerable research interest over the years as it possess anti-cancer activities or can increase the efficacy of conventional chemotherapy drugs with fewer side effects. The antitumor activity of many polysaccharides was significantly increased after modification. Based on these encouraging observations, a great deal of effort has been focused on discovering anti-cancer polysaccharides and modified derivatives for the development of effective therapeutics for various human cancers. This review highlights recent advances on the major chemical modification methods of polysaccharides, and discusses the effect of molecular modification on the physicochemical properties and anti-tumor activities of polysaccharides. Meanwhile, the underlying anti-tumor mechanisms of polysaccharide and its modified derivatives were also discussed.
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Xiong W, Ma H, Zhang Z, Jin M, Wang J, Xu Y, Wang Z. The protective effect of icariin and phosphorylated icariin against LPS-induced intestinal goblet cell dysfunction. Innate Immun 2019; 26:97-106. [PMID: 31390916 PMCID: PMC7016409 DOI: 10.1177/1753425919867746] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In this study, we used LS174T cells as a model to investigate the protective effects of icariin and phosphorylated icariin on LPS-induced goblet cell dysfunction. Our results indicated that icariin and phosphorylated icariin increased the cell viability and decreased lactate dehydrogenase activity in LPS-treated LS174T cells. Icariin and phosphorylated icariin attenuated LPS-induced changes in mucin 2 synthesis and secretion. Besides, Icariin and phosphorylated icariin reduced the levels of ROS, MDA, and H2O2 and increased the activity of SOD, GPx, CAT, and T-AOC in LPS-treated LS174T cells. Moreover, the levels of IL-1β, IL-6, IL-8, and TNF-α were reduced in the Icariin and phosphorylated icariin group. Furthermore, Icariin and phosphorylated icariin decreased gene abundance or enzyme activity of Bip, XBP1, GRP78, CHOP, caspase-3, and caspase-4 in LPS-treated LS174T cells. Our data suggest that Icariin and phosphorylated icariin effectively attenuate LPS-induced intestinal goblet cell function damage through regulating oxidative stress, inflammation, apoptosis, and mucin expression.
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Affiliation(s)
- Wen Xiong
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Haoyue Ma
- College of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - Zhu Zhang
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Meilan Jin
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Jian Wang
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yuwei Xu
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Zili Wang
- College of Animal Science and Technology, Southwest University, Chongqing, China
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Xiong W, Ma H, Zhang Z, Jin M, Wang J, Xu Y, Wang Z. The protective effect of icariin and phosphorylated icariin against LPS-induced intestinal epithelial cells injury. Biomed Pharmacother 2019; 118:109246. [PMID: 31387006 DOI: 10.1016/j.biopha.2019.109246] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/17/2019] [Accepted: 07/18/2019] [Indexed: 02/07/2023] Open
Abstract
Icariin (ICA) and phosphorylated icariin (pICA) have excellent antiviral and antioxidant effects. However, whether ICA and pICA cause anti-LPS-induced intestinal damage remains unclear. In this study, we used Caco-2 cells as a model to investigate the protective effects of ICA and pICA on human colonic epithelial cells and explore their potential mechanisms. Our results indicated that ICA and pICA increased cell viability and decreased lactate dehydrogenase activity in Caco-2 cells. ICA and pICA also attenuated LPS-induced changes in intestinal epithelial cell permeability and reduced the levels of oxidative stress indicators, such as reactive oxygen species, malondialdehyde, and hydrogen peroxide, in Caco-2 cells. Antioxidant indicators, such as superoxide dismutase, glutathione peroxidase, catalase and total antioxidant capacity, were increased, while the levels of IL-1β, IL-6, IL-8 and TNF-α were reduced in the ICA and pICA groups. Furthermore, ICA and pICA decreased the gene abundance and enzyme activities of caspase-3, -8, -9 and -10 in Caco-2 cells. Our data suggest that ICA and pICA effectively attenuated LPS-induced changes in the oxidative stress, inflammation, apoptosis and intestinal permeability of intestinal epithelial cells. These findings provide new insight for treating LPS-induced intestinal injury.
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Affiliation(s)
- Wen Xiong
- College of Animal Science and Technology, Southwest University, Chongqing, China.
| | - Haoyue Ma
- College of Pharmaceutical Sciences, Southwest University, Chongqing, China.
| | - Zhu Zhang
- College of Animal Science and Technology, Southwest University, Chongqing, China.
| | - Meilan Jin
- College of Animal Science and Technology, Southwest University, Chongqing, China.
| | - Jian Wang
- College of Animal Science and Technology, Southwest University, Chongqing, China.
| | - Yuwei Xu
- College of Animal Science and Technology, Southwest University, Chongqing, China.
| | - Zili Wang
- College of Animal Science and Technology, Southwest University, Chongqing, China.
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Starch/Poly (Glycerol-Adipate) Nanocomposite Film as Novel Biocompatible Materials. COATINGS 2019. [DOI: 10.3390/coatings9080482] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Starch is one of the most abundant polysaccharides on the earth and it is the most important source of energy intake for humans. Thermoplastic starch (TPS) is also widely used for new bio-based materials. The blending of starch with other molecules may lead to new interesting biodegradable scaffolds to be exploited in food, medical, and pharmaceutical fields. In this work, we used native starch films as biopolymeric matrix carriers of chemo enzymatically-synthesized poly (glycerol-adipate) (PGA) nanoparticles (NPs) to produce a novel and biocompatible material. The prototype films had a crystallinity ranging from 4% to 7%. The intrinsic and thermo-mechanical properties of the composite showed that the incorporation of NPs in the starch films decreases the glass transition temperature. The utilization of these film prototypes as the basis for new biocompatible material showed promise, particularly because they have a very low or even zero cytotoxicity. Coumarin was used to monitor the distribution of the PGA NPs in the films and demonstrated a possible interaction between the two polymers. These novel hybrid nanocomposite films show great promise and could be used in the future as biodegradable and biocompatible platforms for the controlled release of amphiphilic and hydrophobic active ingredients.
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35
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Harvest time optimization leads to the production of native cassava starches with different properties. Int J Biol Macromol 2019; 132:710-721. [DOI: 10.1016/j.ijbiomac.2019.03.245] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/26/2019] [Accepted: 03/31/2019] [Indexed: 01/18/2023]
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36
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Effects of phosphorylation on the chemical composition, molecular structure, and paste properties of Hedychium coronarium starch. FOOD BIOPROCESS TECH 2019. [DOI: 10.1007/s11947-019-02261-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Luo K, Park KH, Lee DH, Hong CE, Song YW, Yoo SH, Kim YR. Self-assembly kinetics of debranched short-chain glucans from waxy maize starch to form spherical microparticles and its applications. Colloids Surf B Biointerfaces 2019; 176:352-359. [DOI: 10.1016/j.colsurfb.2019.01.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 11/05/2018] [Accepted: 01/01/2019] [Indexed: 10/27/2022]
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Beninca C, Barboza RA, de Oliveira CS, Bet CD, Bisinella RZB, Schnitzler E. Corn and
Pinhão
Starches Modified with Sodium Tripolyphosphate: Thermal, Pasting, Structural and Morphological Properties. STARCH-STARKE 2019. [DOI: 10.1002/star.201800290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Cleoci Beninca
- State University of Ponta Grossa (UEPG)Av. Carlos Cavalcanti, 4748 ‐ Uvaranas84030‐900 Ponta GrossaPRBrazil
- Federal Institute of Education, Science and Technology of Santa Catarina (IFSC)Av. Expedicionários, 2150 ‐ Campo da Água Verde89460‐000 CanoinhasSCBrazil
| | - Raíssa A. Barboza
- State University of Ponta Grossa (UEPG)Av. Carlos Cavalcanti, 4748 ‐ Uvaranas84030‐900 Ponta GrossaPRBrazil
| | - Cristina S. de Oliveira
- State University of Ponta Grossa (UEPG)Av. Carlos Cavalcanti, 4748 ‐ Uvaranas84030‐900 Ponta GrossaPRBrazil
| | - Camila D. Bet
- State University of Ponta Grossa (UEPG)Av. Carlos Cavalcanti, 4748 ‐ Uvaranas84030‐900 Ponta GrossaPRBrazil
| | - Radla Z. B. Bisinella
- State University of Ponta Grossa (UEPG)Av. Carlos Cavalcanti, 4748 ‐ Uvaranas84030‐900 Ponta GrossaPRBrazil
| | - Egon Schnitzler
- State University of Ponta Grossa (UEPG)Av. Carlos Cavalcanti, 4748 ‐ Uvaranas84030‐900 Ponta GrossaPRBrazil
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Inostroza-Blancheteau C, de Oliveira Silva FM, Durán F, Solano J, Obata T, Machado M, Fernie AR, Reyes-Díaz M, Nunes-Nesi A. Metabolic diversity in tuber tissues of native Chiloé potatoes and commercial cultivars of Solanum tuberosum ssp. tuberosum L. Metabolomics 2018; 14:138. [PMID: 30830417 DOI: 10.1007/s11306-018-1428-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 09/08/2018] [Indexed: 10/28/2022]
Abstract
INTRODUCTION The native potatoes (Solanum tuberosum ssp. tuberosum L.) cultivated on Chiloé Island in southern Chile have great variability in terms of tuber shape, size, color and flavor. These traits have been preserved throughout generations due to the geographical position of Chiloé, as well as the different uses given by local farmers. OBJECTIVES The present study aimed to investigate the diversity of metabolites in skin and pulp tissues of eleven native accessions of potatoes from Chile, and evaluate the metabolite associations between tuber tissues. METHODS For a deeper characterization of these accessions, we performed a comprehensive metabolic study in skin and pulp tissues of tubers, 3 months after harvesting. Specific targeted quantification of metabolites using 96 well microplates, and high-performance liquid chromatography combined with non-targeted metabolite profiling by gas chromatography time-of-flight mass spectrometry were used in this study. RESULTS We observed differential levels of antioxidant activity and phenolic compounds between skin and pulp compared to a common commercial cultivar (Desireé). In addition, we uncovered considerable metabolite variability between different tuber tissues and between native potatoes. Network correlation analysis revealed different metabolite associations among tuber tissues that indicate distinct associations between primary metabolite and anthocyanin levels, and antioxidant activity in skin and pulp tissues. Moreover, multivariate analysis lead to the grouping of native and commercial cultivars based on metabolites from both skin and pulp tissues. CONCLUSIONS As well as providing important information to potato producers and breeding programs on the levels of health relevant phytochemicals and other abundant metabolites such as starch, proteins and amino acids, this study highlights the associations of different metabolites in tuber skins and pulp, indicating the need for distinct strategies for metabolic engineering in these tissues. Furthermore, this study shows that native Chilean potato accessions have great potential as a natural source of phytochemicals.
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Affiliation(s)
- Claudio Inostroza-Blancheteau
- Núcleo de Investigación en Producción Alimentaría (NIPA-UCT), Universidad Católica de Temuco, P.O. Box 56-D, Temuco, Chile.
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 56-D, Temuco, Chile.
| | | | - Fabiola Durán
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 56-D, Temuco, Chile
| | - Jaime Solano
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 56-D, Temuco, Chile
| | - Toshihiro Obata
- Central Metabolism Group, Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476, Potsdam-Golm, Germany
| | - Mariana Machado
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa-Minas Gerais, Brazil
| | - Alisdair R Fernie
- Central Metabolism Group, Max Planck Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476, Potsdam-Golm, Germany
| | - Marjorie Reyes-Díaz
- Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
- Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
| | - Adriano Nunes-Nesi
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa-Minas Gerais, Brazil.
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Ubeyitogullari A, Brahma S, Rose DJ, Ciftci ON. In Vitro Digestibility of Nanoporous Wheat Starch Aerogels. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:9490-9497. [PMID: 30130963 DOI: 10.1021/acs.jafc.8b03231] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study reports the in vitro digestibility of starch aerogels for the first time. The relative crystallinities of the wheat starch aerogels (WSAs) produced at gelatinization temperatures of 120 °C (WSA-120C), 130 °C (WSA-130C), and 120 °C with the addition of sodium metaphosphate (STMP) (WSA-STMP) and xerogel were similar. However, WSA-120C showed the highest amylose-lipid complex content. The addition of STMP created some cross-linked starch with a phosphorus content of 0.023%. Resistant starch (RS) contents of WSA-STMP (33.5%) and xerogel (26.9%) were higher than the other samples when they were uncooked prior to digestion. Nevertheless, the RS contents of WSA-STMP and xerogel decreased drastically with cooking. RS contents of WSA-120C and WSA-130C were stable with cooking and provided 4.5- and 3.0-fold increases in the RS content, respectively. WSA is a promising functional food ingredient with a high RS content, even after cooking.
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Affiliation(s)
- Ali Ubeyitogullari
- Department of Food Science and Technology , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-6205 , United States
| | - Sandrayee Brahma
- Department of Food Science and Technology , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-6205 , United States
| | - Devin J Rose
- Department of Food Science and Technology , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-6205 , United States
| | - Ozan N Ciftci
- Department of Food Science and Technology , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-6205 , United States
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Romano A, Masi P, Aversano R, Carucci F, Palomba S, Carputo D. Microstructure and tuber properties of potato varieties with different genetic profiles. Food Chem 2018; 239:789-796. [DOI: 10.1016/j.foodchem.2017.07.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/22/2017] [Accepted: 07/02/2017] [Indexed: 11/28/2022]
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Xiong W, Zhang W, Yuan W, Du H, Ming K, Yao F, Bai J, Chen Y, Liu J, Wang D, Hu Y, Wu Y. Phosphorylation of Icariin Can Alleviate the Oxidative Stress Caused by the Duck Hepatitis Virus A through Mitogen-Activated Protein Kinases Signaling Pathways. Front Microbiol 2017; 8:1850. [PMID: 29018425 PMCID: PMC5622922 DOI: 10.3389/fmicb.2017.01850] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/11/2017] [Indexed: 12/02/2022] Open
Abstract
The duck virus hepatitis (DVH) caused by the duck hepatitis virus A (DHAV) has produced extensive economic losses to the duck industry. The currently licensed commercial vaccine has shown some defects and does not completely prevent the DVH. Accordingly, a new alternative treatment for this disease is urgently needed. Previous studies have shown that icariin (ICA) and its phosphorylated derivative (pICA) possessed good anti-DHAV effects through direct and indirect antiviral pathways, such as antioxidative stress. But the antioxidant activity showed some differences between ICA and pICA. The aim of this study is to prove that ICA and pICA attenuate oxidative stress caused by DHAV in vitro and in vivo, and to investigate their mechanism of action to explain their differences in antioxidant activities. In vivo, the dynamic deaths, oxidative evaluation indexes and hepatic pathological change scores were detected. When was added the hinokitiol which showed the pro-oxidative effect as an intervention method, pICA still possessed more treatment effect than ICA. The strong correlation between mortality and oxidative stress proves that ICA and pICA alleviate oxidative stress caused by DHAV. This was also demonstrated by the addition of hydrogen peroxide (H2O2) as an intervention method in vitro. pICA can be more effective than ICA to improve duck embryonic hepatocytes (DEHs) viability and reduce the virulence of DHAV. The strong correlation between TCID50 and oxidative stress demonstrates that ICA and pICA can achieve anti-DHAV effects by inhibiting oxidative stress. In addition, the superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) of ICA and pICA showed significant difference. pICA could significantly inhibit the phosphorylation of p38, extra cellular signal regulated Kinase (ERK 1/2) and c-Jun N-terminal kinase (JNK), which were related to mitogen-activated protein kinases (MAPKs) signaling pathways. Ultimately, compared to ICA, pICA exhibited more antioxidant activity that could regulate oxidative stress-related indicators, and inhibited the phosphorylation of MAPKs signaling pathway.
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Affiliation(s)
- Wen Xiong
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Wei Zhang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Wenjuan Yuan
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Hongxu Du
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ke Ming
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Fangke Yao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jingying Bai
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yun Chen
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jiaguo Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yuanliang Hu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yi Wu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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Raguin A, Ebenhöh O. Design starch: stochastic modeling of starch granule biogenesis. Biochem Soc Trans 2017; 45:885-893. [PMID: 28673938 PMCID: PMC5652221 DOI: 10.1042/bst20160407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/15/2017] [Accepted: 05/19/2017] [Indexed: 12/03/2022]
Abstract
Starch is the most widespread and abundant storage carbohydrate in plants and the main source of carbohydrate in the human diet. Owing to its remarkable properties and commercial applications, starch is still of growing interest. Its unique granular structure made of intercalated layers of amylopectin and amylose has been unraveled thanks to recent progress in microscopic imaging, but the origin of such periodicity is still under debate. Both amylose and amylopectin are made of linear chains of α-1,4-bound glucose residues, with branch points formed by α-1,6 linkages. The net difference in the distribution of chain lengths and the branching pattern of amylose (mainly linear), compared with amylopectin (racemose structure), leads to different physico-chemical properties. Amylose is an amorphous and soluble polysaccharide, whereas amylopectin is insoluble and exhibits a highly organized structure of densely packed double helices formed between neighboring linear chains. Contrarily to starch degradation that has been investigated since the early 20th century, starch production is still poorly understood. Most enzymes involved in starch growth (elongation, branching, debranching, and partial hydrolysis) are now identified. However, their specific action, their interplay (cooperative or competitive), and their kinetic properties are still largely unknown. After reviewing recent results on starch structure and starch growth and degradation enzymatic activity, we discuss recent results and current challenges for growing polysaccharides on granular surface. Finally, we highlight the importance of novel stochastic models to support the analysis of recent and complex experimental results, and to address how macroscopic properties emerge from enzymatic activity and structural rearrangements.
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Affiliation(s)
- Adélaïde Raguin
- Institute of Quantitative and Theoretical Biology, Heinrich-Heine University, Düsseldorf 40225, Germany
| | - Oliver Ebenhöh
- Institute of Quantitative and Theoretical Biology, Heinrich-Heine University, Düsseldorf 40225, Germany
- Cluster of Excellence on Plant Sciences, Institute of Quantitative and Theoretical Biology, Heinrich-Heine University, Düsseldorf 40225, Germany
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Pirone C, Gurrieri L, Gaiba I, Adamiano A, Valle F, Trost P, Sparla F. The analysis of the different functions of starch-phosphorylating enzymes during the development of Arabidopsis thaliana plants discloses an unexpected role for the cytosolic isoform GWD2. PHYSIOLOGIA PLANTARUM 2017; 160:447-457. [PMID: 28303594 DOI: 10.1111/ppl.12564] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/01/2017] [Accepted: 02/15/2017] [Indexed: 05/20/2023]
Abstract
The genome of Arabidopsis thaliana encodes three glucan, water dikinases. Glucan, water dikinase 1 (GWD1; EC 2.7.9.4) and phosphoglucan, water dikinase (PWD; EC 2.7.9.5) are chloroplastic enzymes, while glucan, water dikinase 2 (GWD2) is cytosolic. Both GWDs and PWD catalyze the addition of phosphate groups to amylopectin chains at the surface of starch granules, changing its physicochemical properties. As a result, GWD1 and PWD have a positive effect on transitory starch degradation at night. Because of its cytosolic localization, GWD2 does not have the same effect. Single T-DNA mutants of either GWD1 or PWD or GWD2 have been analyzed during the entire life cycle of A. thaliana. We report that the three dikinases are all important for proper seed development. Seeds from gwd2 mutants are shrunken, with the epidermal cells of the seed coat irregularly shaped. Moreover, gwd2 seeds contain a lower lipid to protein ratio and are impaired in germination. Similar seed phenotypes were observed in pwd and gwd1 mutants, except for the normal morphology of epidermal cells in gwd1 seed coats. The gwd1, pwd and gwd2 mutants were also very similar in growth and flowering time when grown under continuous light and all three behaved differently from wild-type plants. Besides pinpointing a novel role of GWD2 and PWD in seed development, this analysis suggests that the phenotypic features of the dikinase mutants in A. thaliana cannot be explained solely in terms of defects in leaf starch degradation at night.
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Affiliation(s)
- Claudia Pirone
- Department of Pharmacy and Biotechnology FaBiT, University of Bologna, Bologna, 40126, Italy
| | - Libero Gurrieri
- Department of Pharmacy and Biotechnology FaBiT, University of Bologna, Bologna, 40126, Italy
| | - Ivan Gaiba
- Department of Pharmacy and Biotechnology FaBiT, University of Bologna, Bologna, 40126, Italy
| | - Alessio Adamiano
- Department of Chemistry "G. Ciamician", University of Bologna, Bologna, 40126, Italy
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Faenza, 48018, Italy
| | - Francesco Valle
- Institute for the Study of Nanostructured Materials (ISNM), National Research Council (CNR), Bologna, 40129, Italy
| | - Paolo Trost
- Department of Pharmacy and Biotechnology FaBiT, University of Bologna, Bologna, 40126, Italy
| | - Francesca Sparla
- Department of Pharmacy and Biotechnology FaBiT, University of Bologna, Bologna, 40126, Italy
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45
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MacNeill GJ, Mehrpouyan S, Minow MAA, Patterson JA, Tetlow IJ, Emes MJ. Starch as a source, starch as a sink: the bifunctional role of starch in carbon allocation. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:4433-4453. [PMID: 28981786 DOI: 10.1093/jxb/erx291] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Starch commands a central role in the carbon budget of the majority of plants on earth, and its biological role changes during development and in response to the environment. Throughout the life of a plant, starch plays a dual role in carbon allocation, acting as both a source, releasing carbon reserves in leaves for growth and development, and as a sink, either as a dedicated starch store in its own right (in seeds and tubers), or as a temporary reserve of carbon contributing to sink strength, in organs such as flowers, fruits, and developing non-starchy seeds. The presence of starch in tissues and organs thus has a profound impact on the physiology of the growing plant as its synthesis and degradation governs the availability of free sugars, which in turn control various growth and developmental processes. This review attempts to summarize the large body of information currently available on starch metabolism and its relationship to wider aspects of carbon metabolism and plant nutrition. It highlights gaps in our knowledge and points to research areas that show promise for bioengineering and manipulation of starch metabolism in order to achieve more desirable phenotypes such as increased yield or plant biomass.
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Affiliation(s)
- Gregory J MacNeill
- Department of Molecular and Cellular Biology, College of Biological Science, Summerlee Science Complex, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Sahar Mehrpouyan
- Department of Molecular and Cellular Biology, College of Biological Science, Summerlee Science Complex, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Mark A A Minow
- Department of Molecular and Cellular Biology, College of Biological Science, Summerlee Science Complex, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Jenelle A Patterson
- Department of Molecular and Cellular Biology, College of Biological Science, Summerlee Science Complex, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Ian J Tetlow
- Department of Molecular and Cellular Biology, College of Biological Science, Summerlee Science Complex, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Michael J Emes
- Department of Molecular and Cellular Biology, College of Biological Science, Summerlee Science Complex, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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Highly phosphorylated functionalized rice starch produced by transgenic rice expressing the potato GWD1 gene. Sci Rep 2017; 7:3339. [PMID: 28611462 PMCID: PMC5469863 DOI: 10.1038/s41598-017-03637-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/02/2017] [Indexed: 11/20/2022] Open
Abstract
Starch phosphorylation occurs naturally during starch metabolism in the plant and is catalysed by glucan water dikinases (GWD1) and phosphoglucan water dikinase/glucan water dikinase 3 (PWD/GWD3). We generated six stable individual transgenic lines by over-expressing the potato GWD1 in rice. Transgenic rice grain starch had 9-fold higher 6-phospho (6-P) monoesters and double amounts of 3-phospho (3-P) monoesters, respectively, compared to control grain. The shape and topography of the transgenic starch granules were moderately altered including surface pores and less well defined edges. The gelatinization temperatures of both rice flour and extracted starch were significantly lower than those of the control and hence negatively correlated with the starch phosphate content. The 6-P content was positively correlated with amylose content and relatively long amylopectin chains with DP25-36, and the 3-P content was positively correlated with short chains of DP6-12. The starch pasting temperature, peak viscosity and the breakdown were lower but the setback was higher for transgenic rice flour. The 6-P content was negatively correlated with texture adhesiveness but positively correlated with the cohesiveness of rice flour gels. Our data demonstrate a way forward to employ a starch bioengineering approach for clean modification of starch, opening up completely new applications for rice starch.
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Engineering Potato Starch with a Higher Phosphate Content. PLoS One 2017; 12:e0169610. [PMID: 28056069 PMCID: PMC5215930 DOI: 10.1371/journal.pone.0169610] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 12/17/2016] [Indexed: 11/19/2022] Open
Abstract
Phosphate esters are responsible for valuable and unique functionalities of starch for industrial applications. Also in the cell phosphate esters play a role in starch metabolism, which so far has not been well characterized in storage starch. Laforin, a human enzyme composed of a carbohydrate-binding module and a dual-specificity phosphatase domain, is involved in the dephosphorylation of glycogen. To modify phosphate content and better understand starch (de)phosphorylation in storage starch, laforin was engineered and introduced into potato (cultivar Kardal). Interestingly, expression of an (engineered) laforin in potato resulted in significantly higher phosphate content of starch, and this result was confirmed in amylose-free potato genetic background (amf). Modified starches exhibited altered granule morphology and size compared to the control. About 20–30% of the transgenic lines of each series showed red-staining granules upon incubation with iodine, and contained higher phosphate content than the blue-stained starch granules. Moreover, low amylose content and altered gelatinization properties were observed in these red-stained starches. Principle component and correlation analysis disclosed a complex correlation between starch composition and starch physico-chemical properties. Ultimately, the expression level of endogenous genes involved in starch metabolism was analysed, revealing a compensatory response to the decrease of phosphate content in potato starch. This study provides a new perspective for engineering starch phosphate content in planta by making use of the compensatory mechanism in the plant itself.
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Mitchell M, Pritchard J, Okada S, Larroque O, Yulia D, Pettolino F, Szydlowski N, Singh S, Liu Q, Ral JP. Oil Accumulation in Transgenic Potato Tubers Alters Starch Quality and Nutritional Profile. FRONTIERS IN PLANT SCIENCE 2017; 8:554. [PMID: 28446916 PMCID: PMC5388768 DOI: 10.3389/fpls.2017.00554] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/27/2017] [Indexed: 05/07/2023]
Abstract
Plant storage compounds such as starch and lipids are important for human and animal nutrition as well as industry. There is interest in diverting some of the carbon stored in starch-rich organs (leaves, tubers, and cereal grains) into lipids in order to improve the energy density or nutritional properties of crops as well as providing new sources of feedstocks for food and manufacturing. Previously, we generated transgenic potato plants that accumulate up to 3.3% triacylglycerol (TAG) by dry weight in the tubers, which also led to changes in starch content, starch granule morphology and soluble sugar content. The aim of this study was to investigate how TAG accumulation affects the nutritional and processing properties of high oil potatoes with a particular focus on starch structure, physical and chemical properties. Overall, TAG accumulation was correlated with increased energy density, total nitrogen, amino acids, organic acids and inorganic phosphate, which could be of potential nutritional benefit. However, TAG accumulation had negative effects on starch quality as well as quantity. Starch from high oil potatoes had lower amylose and phosphate content, reduced peak viscosity and higher gelatinization temperature. Interestingly, starch pasting properties were disproportionately affected in lines accumulating the highest levels of TAG (>2.5%) compared to those accumulating only moderate levels (0.2-1.6%). These results indicate that optimized engineering of specialized crops for food, feed, fuel and chemical industries requires careful selection of traits, and an appropriate level of transgene expression, as well as a better understanding of starch structure and carbon partitioning in plant storage organs.
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Affiliation(s)
- Madeline Mitchell
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
- *Correspondence: Madeline Mitchell
| | - Jenifer Pritchard
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
| | - Shoko Okada
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
| | - Oscar Larroque
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
| | - Dina Yulia
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
| | - Filomena Pettolino
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
| | - Nicolas Szydlowski
- Univ. Lille, CNRS, USR 3290 - MSAP - Miniaturisation pour la Synthèse l'Analyse et la ProtéomiqueLille, France
| | - Surinder Singh
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
| | - Qing Liu
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
| | - Jean-Philippe Ral
- Commonwealth Scientific and Industrial Research OrganisationCanberra, ACT, Australia
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Chen Y, Yao F, Ming K, Wang D, Hu Y, Liu J. Polysaccharides from Traditional Chinese Medicines: Extraction, Purification, Modification, and Biological Activity. Molecules 2016; 21:E1705. [PMID: 27983593 PMCID: PMC6273901 DOI: 10.3390/molecules21121705] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/23/2016] [Accepted: 12/02/2016] [Indexed: 02/07/2023] Open
Abstract
Traditional Chinese Medicine (TCM) has been used to treat diseases in China for thousands of years. TCM compositions are complex, using as their various sources plants, animals, fungi, and minerals. Polysaccharides are one of the active and important ingredients of TCMs. Polysaccharides from TCMs exhibit a wide range of biological activities in terms of immunity- modifying, antiviral, anti-inflammatory, anti-oxidative, and anti-tumor properties. With their widespread biological activities, polysaccharides consistently attract scientist's interests, and the studies often concentrate on the extraction, purification, and biological activity of TCM polysaccharides. Currently, numerous studies have shown that the modification of polysaccharides can heighten or change the biological activities, which is a new angle of polysaccharide research. This review highlights the current knowledge of TCM polysaccharides, including their extraction, purification, modification, and biological activity, which will hopefully provide profound insights facilitating further research and development.
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Affiliation(s)
- Yun Chen
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
| | - Fangke Yao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
| | - Ke Ming
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yuanliang Hu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
| | - Jiaguo Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
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50
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Xu X, Dechesne A, Visser RGF, Trindade LM. Expression of an (Engineered) 4,6-α-Glucanotransferase in Potato Results in Changes in Starch Characteristics. PLoS One 2016; 11:e0166981. [PMID: 27911907 PMCID: PMC5135068 DOI: 10.1371/journal.pone.0166981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/07/2016] [Indexed: 11/19/2022] Open
Abstract
Starch structure strongly influences starch physicochemical properties, determining the end uses of starch in various applications. To produce starches with novel structure and exploit the mechanism of starch granule formation, an (engineered) 4, 6-α-glucanotransferase (GTFB) from Lactobacillus reuteri 121 was introduced into two potato genetic backgrounds: amylose-containing line Kardal and amylose-free mutant amf. The resulting starches showed severe changes in granule morphology regardless of genetic backgrounds. Modified starches from amf background exhibited a significant increase in granule size and starch phosphate content relative to the control, while starches from Kardal background displayed a higher digestibility, but did not show changes in granule size and phosphate content. Transcriptome analysis revealed the existence of a mechanism to restore the regular packing of double helices in starch granules, which possibly resulted in the removal of novel glucose chains potentially introduced by the (engineered) GTFB. This amendment mechanics would also explain the difficulties to detect alterations in starch fine structure in the transgenic lines.
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Affiliation(s)
- Xuan Xu
- Wageningen UR Plant Breeding, Wageningen University and Research, P.O. Box 386, 6700, AJ, Wageningen. The Netherlands
- National Centre for Vegetable Improvement (Central China), Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Annemarie Dechesne
- Wageningen UR Plant Breeding, Wageningen University and Research, P.O. Box 386, 6700, AJ, Wageningen. The Netherlands
| | - Richard G. F. Visser
- Wageningen UR Plant Breeding, Wageningen University and Research, P.O. Box 386, 6700, AJ, Wageningen. The Netherlands
| | - Luisa M. Trindade
- Wageningen UR Plant Breeding, Wageningen University and Research, P.O. Box 386, 6700, AJ, Wageningen. The Netherlands
- * E-mail:
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