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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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Estevez-Areco S, Macchi C, Guz L, Goyanes S, Somoza A. Evolution of the free volume during water desorption in thermoplastic starch/citric acid films: In situ positron annihilation studies. Carbohydr Polym 2023; 310:120739. [PMID: 36925254 DOI: 10.1016/j.carbpol.2023.120739] [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: 11/11/2022] [Revised: 02/07/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023]
Abstract
The effect of citric acid (CA) concentration and water content on the free hole volume of thermoplastic cassava starch films (TPS) was studied. To this aim, continuous in situ positron annihilation lifetime spectroscopy measurements were performed at fixed moisture content and during water desorption. The results show that the increase in CA concentration leads to wider free hole volume distributions with lower mean values. During water desorption, the mean values and width of such distributions systematically decrease with the exposure time, and the evolution of the hole volumes was well-described using the Kohlrausch-Williams-Watts function. The water vapour permeability was significantly higher in films incorporating 5 % (w/w) of CA, in line with the more open network of this material that was revealed in the hole volumes distribution. The Young's modulus of all the developed films increased significantly after partial water desorption, which was attributed to the plasticizer loss reflected in a decrease in the mean hole volume value (between 4 % and 13 %). This work evidences that the control and report of the relative humidity are essential when testing TPS-based films, as their nanostructures are strongly dependent on external conditions.
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Affiliation(s)
- Santiago Estevez-Areco
- Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Exactas, Instituto de Física de Materiales Tandil (IFIMAT), Grupo Positrones "Prof. Alfredo Dupasquier", Pinto 399, 7000 Tandil, Buenos Aires, Argentina; CIFICEN, UNCPBA-CICPBA-CONICET, Tandil, Buenos Aires, Argentina.
| | - Carlos Macchi
- Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Exactas, Instituto de Física de Materiales Tandil (IFIMAT), Grupo Positrones "Prof. Alfredo Dupasquier", Pinto 399, 7000 Tandil, Buenos Aires, Argentina; CIFICEN, UNCPBA-CICPBA-CONICET, Tandil, Buenos Aires, Argentina.
| | - Lucas Guz
- Instituto de Investigación e Ingeniería Ambiental (IIIA), CONICET, Universidad Nacional de San Martín, (3iA), Campus Miguelete, 25 de mayo y Francia (1650), San Martín, Buenos Aires, Argentina.
| | - Silvia Goyanes
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Laboratorio de Polímeros y Materiales Compuestos (LP&MC), Ciudad Universitaria (C1428EGA), Ciudad Autónoma de Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires, Instituto de Física de Buenos Aires (IFIBA), Ciudad Universitaria (C1428EGA), Ciudad Autónoma de Buenos Aires, Argentina.
| | - Alberto Somoza
- Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Exactas, Instituto de Física de Materiales Tandil (IFIMAT), Grupo Positrones "Prof. Alfredo Dupasquier", Pinto 399, 7000 Tandil, Buenos Aires, Argentina; CIFICEN, UNCPBA-CICPBA-CONICET, Tandil, Buenos Aires, Argentina.
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Fang K, Zhang Y, Yin J, Yang T, Li K, Wei L, Li J, He W. Hydrogel beads based on carboxymethyl cassava starch/alginate enriched with MgFe 2O 4 nanoparticles for controlling drug release. Int J Biol Macromol 2022; 220:573-588. [PMID: 35988723 DOI: 10.1016/j.ijbiomac.2022.08.081] [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: 04/15/2022] [Revised: 08/05/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022]
Abstract
Implementing novel oral drug delivery systems with controlled drug release behavior is valuable in cancer therapy. Herein, a green synthetic approach based on the sol-gel technique was adopted to prepare MgFe2O4 nanoparticles at different calcination temperatures using citric acid as a chelating/combustion agent. In this context, pH-responsive and magnetic carboxymethyl starch/alginate hydrogel beads (CMCS-SA) containing the MgFe2O4 nanoparticles were developed as potential drug carriers for the anticancer drug (Doxorubicin, Dox) release in simulated gastrointestinal fluids. Furthermore, in vitro release behaviors validated that these beads illustrated excellent stability in the simulated stomach liquids. In contrast, the data in simulated intestinal fluids showed sustained release of Dox because of their pH-sensitive swelling characteristics. Notably, applying an external magnetic field (EMF) could accelerate drug release from the beads. The in vitro release of drugs from gel beads was mainly accomplished by a combination of diffusion, swelling and erosion. Moreover, the cell cytotoxicity test and laser confocal results showed no harmful effects on normal cells (3T3) but were significant cytotoxic to colon cancer cell lines (HCT116) by drug-loaded hydrogel beads. Therefore, the prepared gel beads could be qualified as latent platforms for controlling the release of anticancer drugs in cancer treatment.
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Affiliation(s)
- Kun Fang
- School of Chemistry and Chemical Engineering, School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials Guangxi University, Nanning 530004, Guangxi, China; College of Light Industry and Food Engineering, the Collaborative Innovation Center for Guangxi Sugar Industry, Nanning 530004, Guangxi, China
| | - Yuqi Zhang
- College of Light Industry and Food Engineering, the Collaborative Innovation Center for Guangxi Sugar Industry, Nanning 530004, Guangxi, China
| | - Jiangyu Yin
- College of Light Industry and Food Engineering, the Collaborative Innovation Center for Guangxi Sugar Industry, Nanning 530004, Guangxi, China
| | - Tonghan Yang
- School of Chemistry and Chemical Engineering, School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials Guangxi University, Nanning 530004, Guangxi, China
| | - Kai Li
- College of Light Industry and Food Engineering, the Collaborative Innovation Center for Guangxi Sugar Industry, Nanning 530004, Guangxi, China
| | - Li Wei
- Department of Human Anatomy, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, Guangxi, China
| | - Jianbin Li
- College of Light Industry and Food Engineering, the Collaborative Innovation Center for Guangxi Sugar Industry, Nanning 530004, Guangxi, China.
| | - Wei He
- School of Chemistry and Chemical Engineering, School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials Guangxi University, Nanning 530004, Guangxi, China.
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van der Sman R, Ubbink J, Dupas-Langlet M, Kristiawan M, Siemons I. Scaling relations in rheology of concentrated starches and maltodextrins. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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The porosity of carbohydrate-based spray-dried microparticles containing limonene stabilized by pea protein: Correlation between porosity and oxidative stability. Curr Res Food Sci 2022; 5:878-885. [PMID: 35647558 PMCID: PMC9136181 DOI: 10.1016/j.crfs.2022.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 05/03/2022] [Accepted: 05/08/2022] [Indexed: 11/21/2022] Open
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Pajzderska A, Wąsicki J. NMR relaxometry in an investigation of the kinetics of the recrystallization of a three-phase system. Int J Pharm 2021; 605:120800. [PMID: 34133972 DOI: 10.1016/j.ijpharm.2021.120800] [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: 04/07/2021] [Revised: 06/02/2021] [Accepted: 06/10/2021] [Indexed: 12/14/2022]
Abstract
The method of 1H Nuclear Magnetic Resonance (NMR) relaxometry is applied to investigate the kinetics of the recrystallization of an active pharmaceutical ingredient (felodipine) from the amorphous phase of its physical mixture with a polymer (polyvinylpyrrolidone, PVP). Comparison of the recrystallization results obtained for amorphous felodipine and its mixtures with PVP shows that the recrystallization process of API is faster in the mixtures and depends on the content of water in the system. The free induction decay (FID) for protons that were detected are composed of three components, and the loss of water from PVP strongly influences the part characterized by the longest spin-spin lattice relaxation time. Analysis of the FID of the physical mixture indicates that the content of water does not change during the recrystalization process. The study shows that the T11H NMR relaxometry method is very useful for analysing the composition of a three-phase mixture and the recrystallization process.
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Affiliation(s)
- A Pajzderska
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61-614 Poznań, Poland.
| | - J Wąsicki
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61-614 Poznań, Poland; NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland
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