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Chen H, Wang X, Jin D, Wu X, Fang Y, Lin Q, Ding Y. Interactions between pectin, starch and linoleic acid and their effects on starch structure, digestion and release properties. Int J Biol Macromol 2024; 275:133255. [PMID: 38908630 DOI: 10.1016/j.ijbiomac.2024.133255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/20/2024] [Accepted: 06/17/2024] [Indexed: 06/24/2024]
Abstract
This study aimed at gaining insight into the mechanism of interactions between pectin (PE), starch and unsaturated fatty acids (UFAs) in relation to structure, in vitro digestibility and release properties of starch. Due to the barrier and encapsulation effects of PE, the complexing behavior of potato starch (PtS) with linoleic acid (LOA) was enhanced, which increased the complexing index, the compactness of network structure, short-range ordered structure and relative crystallinity of PtS-LOA-PE films. These structural changes resulted in the increases of slowly digestible starch and resistant starch and in the decreases of first-order rate coefficient in PtS-LOA-PE films. Besides, the in vitro release results also showed that the release properties of PtS-LOA could be controlled by the PE addition with the decreases in LOA release rate and increase in LOA bioavailability under simulated gastrointestinal conditions. Notably, at different PtS-LOA:PE ratios, the PtS-LOA-PE film with the PtS-LOA:PE ratio of 5:1 showed the better complexing degree, structural order, anti-digestibility and colon-targeted release properties than other PtS-LOA-PE films. These results indicated that PE influenced the release properties of the PtS-LOA-PE films, which was closely related to their complexing degree, structural order, and digestibility. This study provided new insights into the design of resistant films for delivery of UFAs to colon.
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Affiliation(s)
- Huirong Chen
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Key Laboratory of Processed Food For Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
| | - Xiaoyan Wang
- Chongqing Academy of Animal Sciences, Rongchang 402460, China
| | - Danni Jin
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Key Laboratory of Processed Food For Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
| | - Xiaonian Wu
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Key Laboratory of Processed Food For Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023,China
| | - Qinlu Lin
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Key Laboratory of Processed Food For Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
| | - Yongbo Ding
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Key Laboratory of Processed Food For Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China.
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2
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Liu JZ, Wang L, Jiang LJ, Lyu HC, Yuan Q, Wang GF, Fu YJ, Cui Q. In sight the behavior of natural Bletilla striata polysaccharide hydrocolloids by molecular dynamics method. Int J Biol Macromol 2024; 266:131245. [PMID: 38554922 DOI: 10.1016/j.ijbiomac.2024.131245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Plant polysaccharides, distinguished by diverse glycosidic bonds and various cyclic sugar units, constitute a subclass of primary metabolites ubiquitously found in nature. Contrary to common understanding, plant polysaccharides typically form hydrocolloids upon dissolution in water, even though both excessively high and low temperatures impede this process. Bletilla striata polysaccharides (BSP), chosen for this kinetic study due to their regular repeating units, help elucidate the relationship between polysaccharide gelation and temperature. It is suggested that elevated temperatures enhance the mobility of BSP molecular chains, resulting in a notable acceleration of hydrogen bond breakage between BSP and water molecules and consequently, compromising the conformational stability of BSPs to some extent. This study unveils the unique relationship between polysaccharide dissolution processes and temperature from a kinetics perspective. Consequently, the conclusion provides a dynamical basis for comprehending the extraction and preparation of natural plant polysaccharide hydrocolloids, pharmaceuticals and related fields.
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Affiliation(s)
- Ju-Zhao Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
| | - Lu Wang
- School of Life Sciences, Westlake University, Hangzhou 310030, PR China
| | - Li-Jie Jiang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Hong-Chang Lyu
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Qiang Yuan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Guang-Fu Wang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu-Jie Fu
- College of Forestry, Beijing Forestry University, No. 35, Tsinghua East Road, Haidian District, Beijing 100083, PR China
| | - Qi Cui
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
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3
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SureshKumar H, Appadurai R, Srivastava A. Glycans modulate lipid binding in Lili-Mip lipocalin protein: insights from molecular simulations and protein network analyses. Glycobiology 2024; 34:cwad094. [PMID: 38015986 DOI: 10.1093/glycob/cwad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 11/30/2023] Open
Abstract
The unique viviparous Pacific Beetle cockroaches provide nutrition to their embryo by secreting milk proteins Lili-Mip, a lipid-binding glycoprotein that crystallises in-vivo. The resolved in-vivo crystal structure of variably glycosylated Lili-Mip shows a classical Lipocalin fold with an eight-stranded antiparallel beta-barrel enclosing a fatty acid. The availability of physiologically unaltered glycoprotein structure makes Lili-Mip a very attractive model system to investigate the role of glycans on protein structure, dynamics, and function. Towards that end, we have employed all-atom molecular dynamics simulations on various glycosylated stages of a bound and free Lili-Mip protein and characterised the impact of glycans and the bound lipid on the dynamics of this glycoconjugate. Our work provides important molecular-level mechanistic insights into the role of glycans in the nutrient storage function of the Lili-Mip protein. Our analyses show that the glycans stabilise spatially proximal residues and regulate the low amplitude opening motions of the residues at the entrance of the binding pocket. Glycans also preserve the native orientation and conformational flexibility of the ligand. However, we find that either deglycosylation or glycosylation with high-mannose and paucimannose on the core glycans, which better mimic the natural insect glycosylation state, significantly affects the conformation and dynamics. A simple but effective distance- and correlation-based network analysis of the protein also reveals the key residues regulating the barrel's architecture and ligand binding characteristics in response to glycosylation.
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Affiliation(s)
- Harini SureshKumar
- Molecular Biophysics Unit, Indian Institute of Science, C. V. Raman Road, Bangalore, KA 560012, India
| | - Rajeswari Appadurai
- Molecular Biophysics Unit, Indian Institute of Science, C. V. Raman Road, Bangalore, KA 560012, India
| | - Anand Srivastava
- Molecular Biophysics Unit, Indian Institute of Science, C. V. Raman Road, Bangalore, KA 560012, India
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4
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Wei X, Xie H, Hu Z, Zeng X, Dong H, Liu X, Bai W. Multiscale structure changes and mechanism of polyphenol-amylose complexes modulated by polyphenolic structures. Int J Biol Macromol 2024; 262:130086. [PMID: 38360224 DOI: 10.1016/j.ijbiomac.2024.130086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/26/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024]
Abstract
This study was designed to investigate the effect of polyphenolic structure on the interaction strength and process between polyphenols (gallic acid (GA), epigallocatechin gallate (EGCG) and tannic acid (TA)) and amylose (AM). The results of Fourier transform infrared spectroscopy, isothermal titration calorimetry, X-ray photoelectron spectroscopy and molecular dynamic simulation (MD) suggested that the interactions between the three polyphenols and AM were noncovalent, spontaneous, low-energy and driven by enthalpy, which would be enhanced with increasing amounts of pyrogallol groups in the polyphenols. The results of turbidity, particle size and appearance of the complex solution showed that the interaction process between polyphenols and AM could be divided into three steps and would be advanced by increasing the number of pyrogallol groups in the polyphenols. At the same time, MD was intuitively employed to exhibit the interaction process between amylose and polyphenols, and it revealed that the interaction induced the aggregation of amylose and that the agglomeration degree of amylose increased with increasing number of pyrogallol groups at polyphenols. Last, the SEM and TGA results showed that TA/AM complexes had the tightest structure and the highest thermal stability (TA/AM˃EGCG/AM˃GA/AM), which could be attributed to TA having five pyrogallol groups.
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Affiliation(s)
- Xianling Wei
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, Guangdong 510225, China; Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou, Guangdong 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China
| | - Huan Xie
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, Guangdong 510225, China; School of Food and Pharmacy, Shanghai Zhongqiao Vocational and Technology University, Shanghai 201514, China
| | - Ziqing Hu
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, Guangdong 510225, China
| | - Xiaofang Zeng
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, Guangdong 510225, China; Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou, Guangdong 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China
| | - Hao Dong
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, Guangdong 510225, China; Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou, Guangdong 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China
| | - Xiaoyan Liu
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou, Guangdong 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China.
| | - Weidong Bai
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, Guangdong 510225, China; Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou, Guangdong 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China.
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5
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He T, Zhao L, Wang L, Liu L, Liu X, Dhital S, Hu Z, Wang K. Gallic acid forms V-amylose complex structure with starch through hydrophobic interaction. Int J Biol Macromol 2024; 260:129408. [PMID: 38228203 DOI: 10.1016/j.ijbiomac.2024.129408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/09/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024]
Abstract
This study aimed to investigate the role of amylose and amylopectin in the formation of starch-polyphenol complex and elucidate the interaction mechanisms. Gallic acid (GA) was used to complex with maize starch with various amylose contents. Results showed GA formed V-type crystals with normal maize starch (NMS) and high amylose maize starch (HAMS), while higher relative crystallinity was exhibited in HAMS-GA complexes than NMS counterparts. Molecular structure analysis revealed more amylose in GA-starch complexes than in treated starch counterparts without GA, and this was more apparent in HAMS than NMS, implying amylose is preferred to complex with GA than amylopectin. FTIR detected higher R1047/1022 value in starch-GA complexes than their starch counterparts without GA, suggesting increased short-range ordered structrure of complexes. Typical signatures of hydrophobic interactions were further revealed by isothermal titration calorimetry, indicating the complexation of GA to starch is mainly through hydrophobic bonds. More binding sites were observed for HAMS (72.50) than NMS (11.33), which proves the preferences of amylose to bind with GA. Molecular dynamics simulated the complexation of GA to amylose, and confirmed hydrophobic bond is the main interaction force. These findings would provide guidance for precise design and utilization of starch-polyphenol complexes in functional foods.
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Affiliation(s)
- Ting He
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China; Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton Campus, VIC 3800, Australia
| | - Lei Zhao
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Liang Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Lin Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Xuwei Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Sushil Dhital
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton Campus, VIC 3800, Australia
| | - Zhuoyan Hu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Kai Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China.
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6
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Zhu Z, Sun C, Wang C, Mei L, He Z, Mustafa S, Du X, Chen X. The anti-digestibility mechanism of soy protein isolate hydrolysate on natural starches with different crystal types. Int J Biol Macromol 2024; 255:128213. [PMID: 37989032 DOI: 10.1016/j.ijbiomac.2023.128213] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/26/2023] [Accepted: 11/15/2023] [Indexed: 11/23/2023]
Abstract
The effects of soy protein isolate hydrolysate (SPIH) on the physicochemical properties and digestive characteristics of three starch types (wheat, potato, and pea) were investigated. Fourier-transform infrared spectroscopy and molecular dynamics simulations showed that hydrogen bonds were the driving force of the interaction between SPIH and starch. Furthermore, the SPIH was predicted to preferentially bind to the terminal region of starch using molecular dynamics simulations. Compared to pure starch, adding 20 % SPIH to wheat starch, potato starch, and pea starch, the content of resistant starch increased by 39.71 %, 125.66 % and 37.83 %, respectively. Both the radial distribution function (RDF) and low field-nuclear magnetic resonance (LF-NMR) showed that SPIH reduced the flow of water molecules in starch, indicating that SPIH competed with starch for water molecules. Multiple characterization experiments and molecular dynamics simulations confirmed that the anti-digestibility mechanism of SPIH on natural starches with different crystal types could be attributed to the interaction between starch and SPIH, which decreased the catalytic efficiency of amylase. This study clarified the anti-digestibility mechanism of SPIH on natural starches, which provides new insights into the production of low-glycemic index foods for the diabetic population.
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Affiliation(s)
- Zhijie Zhu
- Key Laboratory of Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei, China; Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
| | - Chengyi Sun
- Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
| | - Caihong Wang
- Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
| | - Liping Mei
- Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
| | - Zhaoxian He
- Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
| | - Saddam Mustafa
- Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xianfeng Du
- Key Laboratory of Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei, China; Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China.
| | - Xu Chen
- Key Laboratory of Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei, China; Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China.
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7
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Ma Y, Chen Z, Chen R, Wang Z, Zhang S, Chen J. Probing molecular interactions of amylose-morin complex and their effect on antioxidant capacity by 2D solid-state NMR spectroscopy. Food Chem 2023; 415:135693. [PMID: 36857873 DOI: 10.1016/j.foodchem.2023.135693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/24/2023] [Accepted: 02/12/2023] [Indexed: 02/17/2023]
Abstract
Interaction of polyphenols and starch significantly governed the further applications on polyphenol-starchy foods. Elucidation of inter-molecular interaction is, however, a challenge because conventional characterizations could not detect the change of micro-environment caused by weak interactions. Herein, a facile strategy for molecular detection of amylose-polyphenol interactions was reported using two-dimensional solid-state NMR spectroscopy. Amylose-morin complex was prepared and characterized using 1H NMR, FT-IR, DSC, XRD and SEM. Significantly, variation of chemical shifts, splitted peaks and peak width, monitored by 13C CP/MAS and 1H NMR spectra, identified the strong inter-molecular interaction and binding sites. Furthermore, correlated signals from 1H-13C HETCOR confirmed the binding sites of interactions. These findings confirmed the interaction was inter-molecular hydrogen bonds, which generated between hydroxy-3,5,7 of morin and hydroxy groups of amylose. Besides, DPPH radical scavenging and reducing power assay indicated inter-molecular hydrogen bonds are not strong enough to interfere antioxidant capacity of morin.
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Affiliation(s)
- Yunxiang Ma
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, China; Gansu Provincial Key Laboratory of Arid Land Crop Science, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Zidi Chen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, China
| | - Ruixi Chen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, China
| | - Zhipeng Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Shenggui Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, China; Gansu Provincial Key Laboratory of Arid Land Crop Science, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Jinfeng Chen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, China
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Bhardwaj VK, Purohit R. A comparative study on inclusion complex formation between formononetin and β-cyclodextrin derivatives through multiscale classical and umbrella sampling simulations. Carbohydr Polym 2023; 310:120729. [PMID: 36925262 DOI: 10.1016/j.carbpol.2023.120729] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/31/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023]
Abstract
Formononetin, a naturally occurring isoflavone exhibits a wide range of therapeutic applications including antioxidant, anti-tumor, antiviral, anti-diabetic and neuroprotective activities. However, the low hydro-solubility of formononetin has limited its prospective use in cosmetic, neutraceutical and pharmaceutical industries. Cyclodextrins (CDs), especially β-CD and its derivatives have emerged as promising agents to improve the water solubility of poorly hydrosoluble compounds by the formation of inclusion complexes. We employed multiscale (1000 ns) explicit solvent and umbrella sampling molecular dynamics (MD) simulations to study the interactions and thermodynamic parameters of inclusion complex formation between formononetin and five most commonly used β-CD derivatives. Classical MD simulations revealed two possible binding conformations of formononetin inside the central cavity of hydroxypropyl-β-CD (HP-β-CD), randomly methylated-β-CD (ME-β-CD), and sulfobutylether-β-CD (SBE-β-CD). The binding conformation with the benzopyrone ring of formononetin inside the central cavity of β-CD derivatives was more frequent than the phenyl group occupying the hydrophobic cavity. These interactions were supported by a variety of non-bonded contacts including hydrogen bonds, pi-lone pair, pi-sigma, and pi-alkyl interactions. Formononetin showed favorable end-state MD-driven thermodynamic binding free energies with all the selected β-CD derivatives, except succinyl-β-CD (S-β-CD). Furthermore, umbrella sampling simulations were used to investigate the interactions and thermodynamic parameters of the host-guest inclusion complexes. The SBE-β-CD/formononetin inclusion complex showed the lowest binding energy signifying the highest affinity among all the selected host-guest inclusion complexes. Our study could be used as a standard for analyzing and comparing the ability of different β-CD derivatives to enhance the hydro-solubility of poorly soluble molecules.
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Affiliation(s)
- Vijay Kumar Bhardwaj
- Structural Bioinformatics Lab, CSIR-Institute of Himalayan Bioresource Technology (CSIR-IHBT), Palampur, HP 176061, India; Biotechnology Division, CSIR-IHBT, Palampur, HP 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India
| | - Rituraj Purohit
- Structural Bioinformatics Lab, CSIR-Institute of Himalayan Bioresource Technology (CSIR-IHBT), Palampur, HP 176061, India; Biotechnology Division, CSIR-IHBT, Palampur, HP 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad- 201002, India.
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9
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Deng C, Zhang T, Zhang X, Gu T, Xu L, Yu Z, Zheng M, Zhou Y. Multiscale structure and precipitation mechanism of debranched starch precipitated by different alcohols. Int J Biol Macromol 2023; 241:124562. [PMID: 37088190 DOI: 10.1016/j.ijbiomac.2023.124562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/22/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Alcohol solution is a cheap, simple, and effective precipitating solvent frequently used for separating debranched starch (DBS), yet little is known about the precipitation mechanism of DBS by different alcohols. This study precipitated DBS from pullulanase-hydrolyzed starch using ethanol, n-butanol, and isopentanol. The multiscale structures of DBS were characterized, including chain length, single/double helix, and crystalline. The chain conformation and precipitation mechanism of DBS in different alcohols was investigated using molecular dynamics (MD) simulation. DBS precipitated by n-butanol contained the largest proportion of short chain (DP6-24, 83.2 %), the highest V-type crystallinity (21.1 %), and the largest single-helix content (24.7 %). A single helix conformation of DBS chain was determined in alcohols, where alcohol molecules entered the helix cavity. Intra/inter-molecular hydrogen bonds stabilized the helix, with a large number of hydrogen bonds leading to strong molecular interaction and stable helical structure. The solvent accessible surface area of DBS chain decreased by 7.88-19.32 % in alcohols, and the radial distribution function revealed that the first solvent layer of DBS chain at 0.29 nm was closely related to hydrogen bonding. This study provides a basis for the choice of precipitation solvent for preparing DBS with different chain lengths and physicochemical properties.
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Affiliation(s)
- Changyue Deng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Tiantian Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Xiumei Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Tingting Gu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Li Xu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Zhenyu Yu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Mingming Zheng
- Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China; Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Yibin Zhou
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China.
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10
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Li B, Wang S, Zhang Y, Huang C, Zhao Y, Wu G, Tan L. Effect of the Amylose Nanoscale Polymerization Index on the Digestion Kinetics and Mechanism of Recombinant Chinese Seedless Breadfruit Starch Triadic Complexes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37024427 DOI: 10.1021/acs.jafc.2c08746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The demand for multicomponent foods to meet human energy and nutritional needs has been increasing; however, few studies have addressed the theoretical basis for their preparation. We investigated the effect of the nanoscale polymerization index (DPw) of amylose on the logarithm of slope plot-based kinetics and the mechanism of digestion of starch-lauric acid-β-lactoglobulin protein complexes. Amylose from each of the five Chinese seedless breadfruit species was mixed with breadfruit amylopectin with the highest resistant starch (RS) content to form starch ternary complexes with various amylose DPws. All five complexes exhibited V-type crystalline diffraction and rod-like molecular configuration. Characteristic X-ray diffraction peaks and Fourier transform-infrared spectra of the ternary complexes revealed similar molecular configurations. As the amylose DPw increased, the complexing index, relative crystallinity, short-range order, weight-average molar mass, molecular density index, gelatinization temperature, decomposition temperature, RS, slowly digestible starch (SDS), and speed rate constants at the second hydrolysis stage (k2) increased, whereas the semicrystalline lamellae thickness, mass fractal structure parameter, average characteristic crystallite unit length, radius of gyration, fractal dimension and cavities of granule surface microstructure, final viscosity, interval speed rate from SDS to RS, equilibrium concentration, and glycemic index decreased. The digestion kinetics exhibited highly significant variation according to the physiochemical properties and multiscale supramolecular structure (r > 0.99 or r < -0.99, p < 0.01). Together, these results identify amylose DPw as an important structural factor that markedly affects the kinetics and mechanism of ternary complex digestion and provide a new theoretical direction for the production of starch-based multicomponent foods.
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Affiliation(s)
- Bo Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530003, China
- Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Wanning, Hainan 571533, China
- Key Laboratory of Processing Suitability and Quality Control of the Special Tropical Crops of Hainan Province, Wanning, Hainan 571533, China
| | - Shuangfei Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530003, China
| | - Yanjun Zhang
- Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Wanning, Hainan 571533, China
- Key Laboratory of Processing Suitability and Quality Control of the Special Tropical Crops of Hainan Province, Wanning, Hainan 571533, China
| | - Chongxing Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530003, China
| | - Yuan Zhao
- College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530003, China
| | - Gang Wu
- Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Wanning, Hainan 571533, China
- Key Laboratory of Processing Suitability and Quality Control of the Special Tropical Crops of Hainan Province, Wanning, Hainan 571533, China
| | - Lehe Tan
- Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Wanning, Hainan 571533, China
- Key Laboratory of Processing Suitability and Quality Control of the Special Tropical Crops of Hainan Province, Wanning, Hainan 571533, China
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11
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Wang C, Ji N, Dai L, Qin Y, Shi R, Xiong L, Sun Q. The Mechanism Underlying the Amylose-Zein Complexation Process and the Stability of the Molecular Conformation of Amylose-Zein Complexes in Water Based on Molecular Dynamics Simulation. Foods 2023; 12:foods12071418. [PMID: 37048239 PMCID: PMC10093620 DOI: 10.3390/foods12071418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
The aim of this study was to employ molecular dynamics simulations to elucidate the mechanism involved in amylose–zein complexation and the stability of the molecular conformation of amylose–zein complexes in water at the atomic and molecular levels. The average root mean square deviation and radius of gyration were lower for amylose–zein complexes (1.11 nm and 1 nm, respectively) than for amylose (2.13 nm and 1.2 nm, respectively), suggesting a significantly higher conformational stability for amylose–zein complexes than for amylose in water. The results of radial distribution function, solvent-accessible surface area, and intramolecular and intermolecular hydrogen bonds revealed that the amylose–zein interaction inhibited water permeation into the amylose cavity, leading to enhanced conformational stabilities of the V-type helical structure of amylose and the amylose–zein complexes. Furthermore, the amylose in amylose–zein complexes displayed the thermodynamically stable 4C1 conformation. These findings can provide theoretical guidance in terms of the application of protein on starch processing aiming to improve the physicochemical and functional properties of starch (such as swelling capacity, pasting properties, and digestibility) for developing novel low-digestibility starch–protein products.
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12
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Li Y, Yu T, Wang Z, Li Q, Rao L, Zhao L, Wang Y, Liao X. The influence mechanism of pH and hydrothermal processing on the interaction between cyanidin-3-O-glucoside and starch. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Zhuang J, Liu H, You L, Xu F, Zeng H, Zeng S. Influence of ultrasonic-microwave power on the structure and in vitro digestibility of lotus seed starch-glycerin monostearin complexes after retrogradation. Int J Biol Macromol 2023; 228:59-67. [PMID: 36563815 DOI: 10.1016/j.ijbiomac.2022.12.188] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 11/19/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
The digestibility of starches with high amylose content can be modulated by the complexation with lipids, which is largely influenced by physical modification methods. In the current work, the impact of ultrasound-microwavre synergistic treatment on the structure and in vitro digestibility of lotus seed starch-glycerin monostearin complexes (LS-GMSc) after retrogradation were investigated. Results showed that 400 W of ultrasound treatment combined with microwave was more conducive to the formation of LS-GMSc, which increased the microcrystalline region and ordering degree of starch. However, excessively high ultrasound intensity weakened V-type diffraction and promoted amylose recrystallization. Investigation of the micromorphology and thermal properties revealed that the existence of V-complexes retarded starch retrogradation, and this effect was significantly enhanced after appropriate ultrasound (400 W) treatment. The digestion showed that 400 W of ultrasound treatment improved the digestive resistance of starch complexes and increased the content of resistant starch. These results are significant to the theoretical foundation and functional application of V-type complexes on anti-gelling and anti-digestion.
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Affiliation(s)
- Jie Zhuang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Huifang Liu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Longnong You
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fangqing Xu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hongliang Zeng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China; China-Ireland International Cooperation Centre for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shaoxiao Zeng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China; China-Ireland International Cooperation Centre for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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14
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Developing DHA microcapsules using linear dextrin aggregates of different chain length distributions. Carbohydr Polym 2022; 293:119721. [DOI: 10.1016/j.carbpol.2022.119721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 06/06/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022]
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15
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Cao C, Deng C, Hu J, Zhou Y. Formation and molecular dynamics simulation of inclusion complex of large-ring cyclodextrin and 4-terpineol. J Food Sci 2022; 87:4609-4621. [PMID: 36086891 DOI: 10.1111/1750-3841.16303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/22/2022] [Accepted: 08/02/2022] [Indexed: 12/01/2022]
Abstract
In the present study, the formation and structure of the inclusion compound of large-ring cyclodextrin and 4-terpineol were obtained through different experiments and molecular dynamics (MD) simulation. The analysis of FTIR, 1 H-NMR, and thermodynamic results confirmed the formation of clathrates. Analysis of molecular structure (root-mean-square deviation and radius of gyration), solubility, and interaction energy (Coul, H bond) based on MD simulations further clarified the nature of the clathrate and the conformational changes caused by guest molecules as well as inclusion complexes process trends. The inclusion complex reportedly has a new crystal structure with improved thermal stability. PRACTICAL APPLICATION: This is the first work to demonstrate the complex formation between 4-terpineol and large-ring cyclodextrin by molecular dynamics simulation. Molecular dynamics simulation confirmed the formation of inclusion complexes theoretically. Conformational changes of the molecules and the formation of complexes with improved thermal stability were observed. Complexing with large-ring cyclodextrin can be used as an effective means to encapsulate the aroma/flavor compounds.
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Affiliation(s)
- Chuan Cao
- The College of Environment and Chemical Engineering, Anhui Vocational and Technical College, Hefei, China.,Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
| | - Changyue Deng
- Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
| | - Jinwei Hu
- Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
| | - Yibin Zhou
- Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
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16
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Wang C, Chao C, Yu J, Copeland L, Huang Y, Wang S. Mechanisms Underlying the Formation of Amylose- Lauric Acid-β-Lactoglobulin Complexes: Experimental and Molecular Dynamics Studies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:10635-10643. [PMID: 35994717 DOI: 10.1021/acs.jafc.2c04523] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of the present study was to reveal the mechanisms underlying the formation of ternary complexes with a model system of amylose (AM), lauric acid (LA), and β-lactoglobulin (βLG) using experimental studies and molecular dynamics (MD) simulations. Experimental analyses showed that hydrophobic interactions and hydrogen bonds contributed more than electrostatic forces to the formation of the AM-LA-βLG complex. MD simulations indicated that interactions between AM and βLG through electrostatic forces and hydrogen bonds, and to a less extent van der Waals forces, and interactions between AM and LA through van der Waals forces, were mostly responsible for complex formation. The combination of experimental results and MD simulations has provided new mechanistic insights and led us to conclude that hydrophobic interactions, van der Waals forces between AM and LA, and van der Waals forces and hydrogen bonds between AM and βLG were the main driving forces for the formation of the AM-LA-βLG complex.
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Affiliation(s)
- Cuiping Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- School of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Chen Chao
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- School of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jinglin Yu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Les Copeland
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales Australia 2006
| | - Yongchun Huang
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Shujun Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- School of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
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17
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Baldassa MA, Dias RV, Oliveira LC, Feitosa E. Aqueous mixtures of cornstarch and Pluronic® F127 studied by experimental and computational techniques. Food Res Int 2022; 158:111515. [DOI: 10.1016/j.foodres.2022.111515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/31/2022] [Accepted: 06/13/2022] [Indexed: 11/30/2022]
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18
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Li Q, Gao Y, Li Y, Du S, Yu X. Effect of hydrophilic groups in lipids on the characteristics of starch–lipid complexes. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qi Li
- Engineering Research Center of Grain and Oil Functionalized Processing in Universities of Shaanxi Province, College of Food Science and Engineering Northwest A&F University 22 Xinong Road Yangling 712100 Shaanxi China
| | - Yuan Gao
- Engineering Research Center of Grain and Oil Functionalized Processing in Universities of Shaanxi Province, College of Food Science and Engineering Northwest A&F University 22 Xinong Road Yangling 712100 Shaanxi China
| | - Yancai Li
- Engineering Research Center of Grain and Oil Functionalized Processing in Universities of Shaanxi Province, College of Food Science and Engineering Northwest A&F University 22 Xinong Road Yangling 712100 Shaanxi China
| | - Shuang‐kui Du
- Engineering Research Center of Grain and Oil Functionalized Processing in Universities of Shaanxi Province, College of Food Science and Engineering Northwest A&F University 22 Xinong Road Yangling 712100 Shaanxi China
| | - Xiuzhu Yu
- Engineering Research Center of Grain and Oil Functionalized Processing in Universities of Shaanxi Province, College of Food Science and Engineering Northwest A&F University 22 Xinong Road Yangling 712100 Shaanxi China
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19
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Xu H, Zhang S, Yu W. Revealing the mechanism beneath the effects of starch-amino acids interactions on starch physicochemical properties by molecular dynamic simulations. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Schahl A, Lemassu A, Jolibois F, Réat V. Evidence for amylose inclusion complexes with multiple acyl chain lipids using solid-state NMR and theoretical approaches. Carbohydr Polym 2022; 276:118749. [PMID: 34823780 DOI: 10.1016/j.carbpol.2021.118749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/22/2021] [Accepted: 10/08/2021] [Indexed: 11/02/2022]
Abstract
Amylose is known to form inclusion complexes in the presence of hydrophobic guests. Among lipids, only single-chain fatty acids have been reported as possible guests with the surrounding amylose in a well-defined V-helix conformation. Using experimental 13C solid-state NMR, we studied the formation of inclusion complexes between amylose and a variety of multiple-chains lipids of increasing complexity. Molecular dynamics simulations and calculations of 13C isotropic chemical shifts using the Density Functional Theory approach were performed to support the interpretation of experimental spectra. We provide unambiguous evidences that amylose forms inclusion complexes with lipids bearing multiple acyl chains. Amylose conformations around these lipids are characterized by {ϕ,ψ} anomeric bond dihedral angles near {115°,105°}. In the 13C NMR spectra, this translates into C1 and C4 chemical shifts of 102.5 ppm and 81.1 ppm, regardless of the helical conformation of the amylose surrounding the acyl chains.
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Affiliation(s)
- Adrien Schahl
- Institut de Pharmacologie et Biologie Structurale, IPBS, UMR5089, Université de Toulouse, CNRS, UPS, BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France; LPCNO, Université Fédérale de Toulouse Midi-Pyrénées, UMR5215, INSA-CNRS-UPS, 135 avenue de Rangueil, 31077 Cedex 4 Toulouse, France
| | - Anne Lemassu
- Institut de Pharmacologie et Biologie Structurale, IPBS, UMR5089, Université de Toulouse, CNRS, UPS, BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France
| | - Franck Jolibois
- LPCNO, Université Fédérale de Toulouse Midi-Pyrénées, UMR5215, INSA-CNRS-UPS, 135 avenue de Rangueil, 31077 Cedex 4 Toulouse, France
| | - Valérie Réat
- Institut de Pharmacologie et Biologie Structurale, IPBS, UMR5089, Université de Toulouse, CNRS, UPS, BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France.
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21
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Gao Q, Bie P, Tong X, Zhang B, Fu X, Huang Q. Complexation between High-Amylose Starch and Binary Aroma Compounds of Decanal and Thymol: Cooperativity or Competition? JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11665-11675. [PMID: 34469152 DOI: 10.1021/acs.jafc.1c01585] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The use of combinations of aroma compounds is common in many food and cosmetic applications. To investigate the binding behavior between high-amylose maize starch and binary aroma combinations of decanal and thymol, starch-aroma inclusion complexes (ICs) were prepared by a one-step or two-step method with different concentrations and orders of addition. The thymol molecule induced the starch chain to form a larger helical cavity and was more likely to form hydrogen bonds with solvents. The encapsulation efficiency and loading efficiency of starch-thymol ICs were always higher than those of starch-decanal ICs, independent of the aroma concentration and addition order in binary aroma ICs. However, starch-decanal ICs prepared in the presence of thymol encapsulated more decanal than in the absence of thymol. The V6I-type crystals formed by starch-decanal ICs and the V6III-type crystals formed by starch-thymol ICs were both present in binary aroma ICs, resulting in a less-ordered structure and lower thermal transition temperatures. In summary, the complexation between binary aroma compounds and starch exhibited both cooperative and competitive binding behaviors. The synergistic effects between decanal and thymol provide guidance in enhancing the aroma encapsulation in starch carriers.
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Affiliation(s)
- Qing Gao
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Pingping Bie
- Foshan Haitian (Gaoming) Flavoring & Food Co., Ltd., Foshan 528511, China
| | - Xing Tong
- Foshan Haitian (Gaoming) Flavoring & Food Co., Ltd., Foshan 528511, China
| | - Bin Zhang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
- China-Singapore International Joint Research Institute, Guangzhou 511363, China
| | - Xiong Fu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
| | - Qiang Huang
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
- China-Singapore International Joint Research Institute, Guangzhou 511363, China
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22
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Yassaroh Y, Nurhaini FF, Woortman AJJ, Loos K. Physicochemical properties of heat-moisture treated, sodium stearate complexed starch: The effect of sodium stearate concentration. Carbohydr Polym 2021; 269:118263. [PMID: 34294296 DOI: 10.1016/j.carbpol.2021.118263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 10/21/2022]
Abstract
Amylose‑sodium stearate (SS) complexes (2, 5 and 8%) in heat-moisture treated potato starch (HPS) were evaluated for their physicochemical properties. Based on the DSC thermograms, the amylose - SS complexes were successfully formed with high thermal stability, indicated by a melt temperature (Tpeak) of ≥ 112 °C for type I and ≥125 °C for type II complexes. Addition of 2% SS resulted in a single endothermal peak of the complexes, while 5 and 8% led to the formation of type I and II complexes with much higher enthalpy (ΔH) values. The XRD curve confirmed that the complexes were successfully formed. The pasting temperature increased from 66 °C for native to 91 °C for HPS145 complexed starch with 5% SS. Furthermore, the swelling power could be largely decreased, and the granular structure preserved. In addition, the inclusion complexation with SS on (HPS) succesfully improved the cook stabiliy.
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Affiliation(s)
- Yassaroh Yassaroh
- Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
| | - Feni F Nurhaini
- Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands; Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Science, Institut Teknologi Bandung (ITB), Ganesha 10, 40132 Bandung, Indonesia
| | - Albert J J Woortman
- Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
| | - Katja Loos
- Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands.
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23
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Tang P, Liu Y, Gao Y, Wang Y, Zhang H, Liu Y, Wu D. Molecular simulation, characteristics and mechanism of thermal-responsive acetylated amylose V-type helical complexes. J Mater Chem B 2021; 9:3389-3400. [PMID: 33881436 DOI: 10.1039/d1tb00102g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore the thermal-responsive characteristics of acetylated amylose-guest V-type helical complexes (AAGHCs) and their potential use as thermal-responsive drug carriers, different types of AAGHCs were built, in which acetylated amylose was used as a host, and iodine, propofol, or hexane was utilized as the guest molecule. Their thermal-responsive characteristics were investigated through molecular dynamic (MD) simulation and corresponding experiments. MD simulation showed that the thermal-responsive helix-unfolding and guest-release behavior in AAGHCs, and the complete unfolding of AAGHC could be divided into brewing, triggering and collapsing periods. Energy analysis revealed that the Lana-Jones potential is an important binding energy that bridges host and guest molecules and enhances the stability of the helix. The various types or number of guests showed different binding energies. The stronger the binding energy, higher is the temperature required to trigger the unfolding of the helix and the releasing of guests. FT-IR and X-ray diffraction analyses confirmed the structures of AAGHCs. The change in hydrated size, and UV-VIS absorption of AAGHCs at high temperatures both confirmed the thermal-responsiveness of AAGHCs. The fluorescence fluctuation of loaded 7-hydroxycoumarin reflected the same thermal-responsive process and mechanism as MD simulation. This study provides meaningful theoretical guidance for the design of thermal-responsive drug carriers based on acetylated amylose-guest V-type helical complexes.
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Affiliation(s)
- Peng Tang
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
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24
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Abstract
As the prevalence of obesity and diabetes has continued to increase rapidly in recent years, dietary approaches to regulating glucose homeostasis have gained more attention. Starch is the major source of glucose in the human diet and can have diverse effects, depending on its rate and extent of digestion in the small intestine, on postprandial glycemic response, which over time is associated with blood glucose abnormalities, insulin sensitivity, and even appetitive response and food intake. The classification of starch bioavailability into rapidly digestible starch, slowly digestible starch, and resistant starch highlights the nutritional values of different starches. As starch is the main structure-building macroconstituent of foods, its bioavailability can be manipulated by selection of food matrices with varying degrees of susceptibility to amylolysis and food processing to retain or develop new matrices. In this review, the food factors that may modulate starch bioavailability, with a focus on food matrices, are assessed for a better understanding of their potential contribution to human health. Aspects affecting starch nutritional properties as well as production strategies for healthy foods are also reviewed, e.g., starch characteristics (different type, structure, and modification), food physical properties (food form, viscosity, and integrity), food matrix interactions (lipid, protein, nonstarch polysaccharide, phytochemicals, organic acid, and enzyme inhibitor), and food processing (milling, cooking, and storage).
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Affiliation(s)
- Ming Miao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China;
| | - Bruce R Hamaker
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; .,Whistler Center for Carbohydrate Research and Department of Food Science, Purdue University, West Lafayette, Indiana 47907-1160, USA;
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25
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Khatami MH, Barber W, de Haan HW. Using geometric criteria to study helix-like structures produced in molecular dynamics simulations of single amylose chains in water. RSC Adv 2021; 11:11992-12002. [PMID: 35423775 PMCID: PMC8697119 DOI: 10.1039/d1ra00071c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/02/2021] [Indexed: 11/25/2022] Open
Abstract
Amylose is a linear polymer chain of α-d-glucose units connected through α(1 → 4) glycosidic bonds. Experimental studies show that in non-polar solvents, single amylose chains form helical structures containing precise H-bond patterns. However, both experimental and computational studies indicate that these perfectly H-bonded helices are not stable in pure water. Nevertheless, amylose chains are observed to form helix-like structures in molecular dynamics (MD) simulations that exhibit imperfect H-bond patterns. In this paper, we study the structure of amylose chains in water using MD simulations to identify and characterize these “imperfect” helical structures. To this end we devise geometry-based criteria to define imperfect helical structures in amylose chains. Using this approach, the propensity of amylose chains to form these structures is quantified as a function of chain length and solvent temperature. This analysis also uncovers both short and long time helix-breaking mechanisms such as band-flips and kinks in the chain. This geometric approach to defining imperfect helices thus allows us to give new insight into the secondary structure of single amylose chains in spite of imperfect H-bond patterns. We introduce a geometrical approach to capture and study helix-like structures in MD simulations of single amylose chains in water.![]()
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Affiliation(s)
| | - William Barber
- Ontario Tech University, Department of Physics 2000 Simcoe St N Oshawa ON L1H 7K4. Canada
| | - Hendrick W de Haan
- Ontario Tech University, Department of Physics 2000 Simcoe St N Oshawa ON L1H 7K4. Canada
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Physicochemical properties of heat-moisture treated, stearic acid complexed starch: The effect of complexation time and temperature. Int J Biol Macromol 2021; 175:98-107. [PMID: 33508365 DOI: 10.1016/j.ijbiomac.2021.01.124] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/20/2022]
Abstract
Starch modification has been extensively studied to alter its physicochemical properties based on human needs. Lowering the digestion rate of starch is one of the interests in food science research, since when it is nutritionally improved, it can reduce the risk of human chronic diseases. In this study, heat-moisture treatment (HMT) followed by inclusion complexation with stearic acid at various temperatures and times was applied to improve the functional properties of starch. Thermal analysis suggested the formation of type I and type II complexes after complexation at 90 °C, indicated by a endothermal peak at 107 and 122 °C, respectively, while native starch after complexation only resulted in type I complexes. The formation of crystalline complexes was also confirmed by XRD showing peaks at 2θ = 13.1° and 20.1°. Furthermore, the modified starch displayed a higher pasting temperature, considerably less swelling and significantly lower viscosity behavior. This implied that the starch granules were thermally and mechanically more stable. The granular appearance of the modified starch was confirmed with light microscopy that presented more intact granules and less ruptured granules, even after heating to 90 °C. This study offers a way to upgrade the nutritional properties of starch.
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Schahl A, Gerber IC, Réat V, Jolibois F. Diversity of the Hydrogen Bond Network and Its Impact on NMR Parameters of Amylose B Polymorph: A Study Using Molecular Dynamics and DFT Calculations Within Periodic Boundary Conditions. J Phys Chem B 2020; 125:158-168. [PMID: 33356276 DOI: 10.1021/acs.jpcb.0c08631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Classical molecular dynamics simulations have been combined with quantum (DFT) calculations of 13C NMR parameters in order to relate the experimental spectrum of the double-helix form of the amylose B-polymorph in highly crystalline conditions not only to its 3D structure but also to the arrangement of atoms in the crystal lattice. Structures obtained from these simulations or from geometry optimization procedures at the DFT level have shown the presence of hydrogen bond networks between sugars of the same helix or between residues of the two chains of the double helix. 13C NMR parameter calculations have revealed the impact of such a network on the chemical shifts of carbon atoms. In addition, DFT calculations using periodic boundary conditions were compulsory to highlight the presence of two types of sugar within the crystal sample. It allows us to confirm, theoretically, the experimental hypothesis that the existence of two distinct sugar types in the NMR spectrum is a consequence of crystal packing.
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Affiliation(s)
- Adrien Schahl
- LPCNO, CNRS UMR 5215, Université de Toulouse-INSA-UPS, 135 av. Rangueil, F-31077 Toulouse, France.,Institut de Pharmacologie et Biologie Structurale, UMR 5089, CNRS-Université de Toulouse-UPS BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France
| | - Iann C Gerber
- LPCNO, CNRS UMR 5215, Université de Toulouse-INSA-UPS, 135 av. Rangueil, F-31077 Toulouse, France
| | - Valérie Réat
- Institut de Pharmacologie et Biologie Structurale, UMR 5089, CNRS-Université de Toulouse-UPS BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France
| | - Franck Jolibois
- LPCNO, CNRS UMR 5215, Université de Toulouse-INSA-UPS, 135 av. Rangueil, F-31077 Toulouse, France
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Schahl A, Réat V, Jolibois F. Structures and NMR spectra of short amylose-lipid complexes. Insight using molecular dynamics and DFT quantum chemical calculations. Carbohydr Polym 2020; 235:115846. [DOI: 10.1016/j.carbpol.2020.115846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/06/2019] [Accepted: 01/08/2020] [Indexed: 01/29/2023]
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Cui F, Zi H, Liu H, Zhang S, Yuan B. A study of starch-urea-water mixtures with a combination of molecular dynamics simulation and traditional characterization methods. Int J Biol Macromol 2020; 148:121-128. [DOI: 10.1016/j.ijbiomac.2019.12.268] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/15/2019] [Accepted: 12/31/2019] [Indexed: 01/19/2023]
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Yossa Nzeuwa IB, Xia H, Shi Y, Yang C, Shah MW, Guo B, Wang L, Sun G. Fatty acid and mineral contents of Lycium ruthenicum Murr. and antioxidant activity against isoproterenol-induced acute myocardial ischemia in mice. Food Sci Nutr 2020; 8:1075-1081. [PMID: 32148816 PMCID: PMC7020293 DOI: 10.1002/fsn3.1393] [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: 06/10/2019] [Revised: 11/19/2019] [Accepted: 11/25/2019] [Indexed: 01/03/2023] Open
Abstract
Dried fruits of black goji were investigated for their fatty acid, mineral contents, and antioxidant activity against isoproterenol-induced acute myocardial ischemia in mice was revealed. It was observed that the key fatty acids from Lycium ruthenicum Murr. (LRM) oil studied included linoleic (59.38%), oleic (20.85%), palmitic (7.07%), linolenic (2.98%), and stearic acids (5.31%), which together comprised 95.59% of the total fatty acids. The key mineral nutrients studied were potassium (17,631.15 mg/kg), calcium (2004.4 mg/kg), and magnesium (1,274.6 mg/kg), while copper, iron, manganese, and zinc were found in trace. Moreover, oral administration of water extraction of LRM exhibited significant reduction of enzyme activities, and MDA level triggered by ISO to be near normal level, while exhibited a significant increase of SOD and GSH activities. Our results provide deep insight on LRM as a potential source of high-value phytochemicals for the development of new functional food and beverage products.
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Affiliation(s)
- Irma Belinda Yossa Nzeuwa
- Department of Nutrition and Food HygieneKey Laboratory of Environmental Medicine Engineering of Ministry of EducationSchool of Public HealthSoutheast UniversityNanjingChina
| | - Hui Xia
- Department of Nutrition and Food HygieneKey Laboratory of Environmental Medicine Engineering of Ministry of EducationSchool of Public HealthSoutheast UniversityNanjingChina
| | - Yuanyuan Shi
- Key Laboratory of Drug Quality Control and PharmacovigilanceMinistry of EducationChina Pharmaceutical UniversityNanjingChina
| | - Chao Yang
- Department of Nutrition and Food HygieneKey Laboratory of Environmental Medicine Engineering of Ministry of EducationSchool of Public HealthSoutheast UniversityNanjingChina
| | - Muhammad Waseem Shah
- Department of Nutrition and Food HygieneKey Laboratory of Environmental Medicine Engineering of Ministry of EducationSchool of Public HealthSoutheast UniversityNanjingChina
| | - Baofu Guo
- Nanjing Municipal Center for Disease Control and PreventionNanjingChina
| | - Liya Wang
- Nanjing Municipal Center for Disease Control and PreventionNanjingChina
| | - Guiju Sun
- Department of Nutrition and Food HygieneKey Laboratory of Environmental Medicine Engineering of Ministry of EducationSchool of Public HealthSoutheast UniversityNanjingChina
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