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      Food-grade silica-loaded gallic acid nanocomposites: Synthesis and mechanism for enhancing water-based biological activity

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          Highlights

          • •

            Food-grade silica-loaded gallic acid nanocomposites (F-SiO 2@GA) were prepared.

          • •

            The gallic acid in F-SiO 2@GA was loaded internally in a non-aggregated form.

          • •

            F-SiO 2@GA exhibited exceptional water solubility and antioxidant activity.

          • •

            F-SiO 2@GA effectively mitigated photodegradation of gardenia yellow pigment.

          • •

            F-SiO 2@GA could effectively control pH, TVBN and TBARS values of whiteleg shrimp.

          Abstract

          As the low water solubility of gallic acid (GA), its biological activities such as water-based antioxidant effect may be greatly reduced. Therefore, GA-loaded nanocomposites (F-SiO 2@GA) with high water solubility were synthesized via solvent evaporation using food-grade silica (F-SiO 2) as carriers in this work. The assessment of antioxidant capacity revealed that F-SiO 2@GA exhibited considerably greater free-radical scavenging ability than free GA and the physical mixture of F-SiO 2 and GA. In the photooxidation experiment of food-grade gardenia yellow pigment (GYP), F-SiO 2@GA showed a notable antioxidant effect on GYP solution. Additionally, in the storage experiment on chilled whiteleg shrimp ( Litopenaeus vannamei) treated with F-SiO 2@GA, pH, total volatile basic nitrogen (TVBN), and thiobarbituric acid reactive substance (TBARS) values were effectively inhibited. In conclusion, the internal encapsulation of GA effectively prevented the self-aggregation phenomenon, thereby facilitating the exposure of its active phenolic hydroxyl group and significantly enhancing its water-based biological activity.

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          Mesoporous silica nanoparticles as potential carriers for enhanced drug solubility of paclitaxel.

          Yongju He, Shuquan Liang, Mengqiu Long … (2017)
          In this study, paclitaxel (PTX), a typical chemotherapeutic agent with poor water-solubility, was selected as the model drug to evaluate the feasibility of mesoporous silica nanoparticles (MSN) to load a hydrophobic drug in different solvents. A sol-gel method was used to synthesize MSN. Drug loading was carried out in three different solvents: dichloromethane, ethanol and dimethyl sulfoxide (DMSO) via a solvent evaporation method, and their effects on drug loading were examined. We further studied the effects of drug loading period and mass ratio of drug to carrier on drug loading capacity of MSN, as well as the in vitro drug release was analyzed. Moreover, the cytotoxic effect of PTX loaded MSN on liver carcinoma (HepG2) cells was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The related materials were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), dynamic light scattering (DLS), fourier transform infrared spectrometer (FTIR), small-angle x-ray scattering (SAXS), wide-angle x-ray diffraction (XRD) and N2 adsorption-desorption analyses. The results demonstrated a highly improved solubility of PTX by using MSN as drug carriers compared to free PTX. In addition, drug loading content increased as the solvent polarity parameter decreased or the drug/carrier mass ratio increased. Compared with the blank MSN, the PTX loaded MSN could produce a significant cytotoxicity on HepG2 cells. Our results indicated that MSN could be very potential drug delivery carriers for poorly water soluble drugs.
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            Characterization and antioxidant properties of chitosan film incorporated with modified silica nanoparticles as an active food packaging

            Wenxia Dong, Jiaqi Su, Yulu Chen … (2022)
            In this study, two modified silica nanoparticles (SiO2-GA NPs) were successfully obtained by covalently grafting gallic acid onto silica nanoparticles. The mean particle diameters of their were 112.7 ± 0.55 nm (1-SiO2-GA NPs) and 408.7 ± 3.20 nm (4-SiO2-GA NPs), respectively. Novel antioxidant active packaging composite films were prepared by incorporation of 1-SiO2-GA NPs or 4-SiO2-GA NPs into chitosan. The structure analysis of the composite films showed that intermolecular hydrogen bonds were formed between the two modified silica nanoparticles and chitosan. Compared with the chitosan film, the mechanical properties, water vapor barrier property and UV light barrier ability of the composite films were significantly improved. Moreover, the incorporated of the two modified silica nanoparticles significantly increased antioxidant activity of the composite films. This study indicates that composite films incorporated with modified silica nanoparticles, especially the incorporation of 1-SiO2-GA NPs can be used as novel antioxidant food packaging composite films.
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              Enhancing oxidative stability of walnuts by using gallic acid loaded lentil flour based electrospun nanofibers as active packaging material

              Ayca Aydogdu, Eda Yildiz, Yildirim Aydogdu … (2019)
              Article 0 comments Cited 27 times – based on 0 reviews     Review now
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                Author and article information

                Contributors
                Long Jiao
                Xiaoye Zhang
                Journal
                Journal ID (nlm-ta): Food Chem X
                Journal ID (iso-abbrev): Food Chem X
                Title: Food Chemistry: X
                Publisher: Elsevier
                ISSN (Electronic): 2590-1575
                Publication date PMC-release: 08 February 2024
                Publication date Collection: 30 March 2024
                Publication date (Electronic): 08 February 2024
                Volume: 21
                Electronic Location Identifier: 101207
                Affiliations
                [a ]Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmacy, Zhejiang Ocean University, PR China
                [b ]School of Naval Architecture and Maritime, Zhejiang Ocean University, PR China
                [c ]International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Thailand
                [d ]Pisa Marine Graduate School, Zhejiang Ocean University, PR China
                Author notes
                [* ]Corresponding authors at: No.1, Haida South Road, Lincheng Changzhi Island, Zhoushan, Zhejiang province 316022, PR China. jiaolong502@ 123456zjou.edu.cn 2022096@ 123456zjou.edu.cn
                Article
                Publisher Item ID: S2590-1575(24)00094-4 Publisher ID: 101207
                DOI: 10.1016/j.fochx.2024.101207
                PMC ID: 10869746
                SO-VID: 0b114875-c2c8-4e45-b167-1bf9eac08d88
                Copyright © © 2024 Zhejiang Ocean University
                License:

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                Date received : 4 November 2023
                Date revision received : 2 January 2024
                Date accepted : 4 February 2024
                Categories
                Subject: Research Article

                Keywords: gallic acid,food-grade silica,nanocomposite,water-based biological activity
                Data availability:
                Keywords: gallic acid, food-grade silica, nanocomposite, water-based biological activity

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