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      Antimicrobial and Antioxidative Activity of Newly Synthesized Peptides Absorbed into Bacterial Cellulose Carrier against Acne vulgaris

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          Abstract

          The ongoing search for effective treatment of Acne vulgaris is concentrated, i.a., on natural peptides with antimicrobial properties. The aim of this work was the development of new amino acid derivatives with potential activity on dermal infections against selected microorganisms, including the facultative anaerobe C. acne. The peptides P1–P6 were synthesized via Fmoc solid phase peptide synthesis using Rink amide AM resin, analyzed by RP-HPLC-MS, FTIR, DPPH radical scavenging activity, and evaluated against C. acne and S. aureus, both deposited and non-deposited in BC. Peptides P1–P6 presented a lack of cytotoxicity, antimicrobial activity, or antioxidative properties correlated with selected structural properties. P2 and P4–P6 sorption in BC resulted in variable data, i.a., confirming the prospective topical application of these peptides in a BC carrier.

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          Most cited references61

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          Use of a free radical method to evaluate antioxidant activity

          LWT - Food Science and Technology, 28(1), 25-30
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            Fourier transform infrared spectroscopic analysis of protein secondary structures.

            Infrared spectroscopy is one of the oldest and well established experimental techniques for the analysis of secondary structure of polypeptides and proteins. It is convenient, non-destructive, requires less sample preparation, and can be used under a wide variety of conditions. This review introduces the recent developments in Fourier transform infrared (FTIR) spectroscopy technique and its applications to protein structural studies. The experimental skills, data analysis, and correlations between the FTIR spectroscopic bands and protein secondary structure components are discussed. The applications of FTIR to the secondary structure analysis, conformational changes, structural dynamics and stability studies of proteins are also discussed.
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              Standardized methods for the determination of antioxidant capacity and phenolics in foods and dietary supplements.

              Methods available for the measurement of antioxidant capacity are reviewed, presenting the general chemistry underlying the assays, the types of molecules detected, and the most important advantages and shortcomings of each method. This overview provides a basis and rationale for developing standardized antioxidant capacity methods for the food, nutraceutical, and dietary supplement industries. From evaluation of data presented at the First International Congress on Antioxidant Methods in 2004 and in the literature, as well as consideration of potential end uses of antioxidants, it is proposed that procedures and applications for three assays be considered for standardization: the oxygen radical absorbance capacity (ORAC) assay, the Folin-Ciocalteu method, and possibly the Trolox equivalent antioxidant capacity (TEAC) assay. ORAC represent a hydrogen atom transfer (HAT) reaction mechanism, which is most relevant to human biology. The Folin-Ciocalteu method is an electron transfer (ET) based assay and gives reducing capacity, which has normally been expressed as phenolic contents. The TEAC assay represents a second ET-based method. Other assays may need to be considered in the future as more is learned about some of the other radical sources and their importance to human biology.
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                Author and article information

                Contributors
                Role: Academic Editor
                Journal
                Int J Mol Sci
                Int J Mol Sci
                ijms
                International Journal of Molecular Sciences
                MDPI
                1422-0067
                12 July 2021
                July 2021
                : 22
                : 14
                : 7466
                Affiliations
                [1 ]Department of Physical Chemistry and Biophysics, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland; iwona.golonka@ 123456umed.wroc.pl (I.G.); andrzej.drys@ 123456umed.wroc.pl (A.D.)
                [2 ]Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland; katarzyna.greber@ 123456gumed.edu.pl (K.E.G.); wieslaw.sawicki@ 123456gumed.edu.pl (W.S.)
                [3 ]Department of Pharmaceutical Microbiology and Parasitology, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland; monika.oleksy-wawrzyniak@ 123456umed.wroc.pl (M.O.-W.); justyna.paleczny@ 123456student.umed.wroc.pl (J.P.); adam.junka@ 123456umed.wroc.pl (A.J.)
                Author notes
                [* ]Correspondence: witold.musial@ 123456umed.wroc.pl ; Tel.: +48-717-840-231
                Author information
                https://orcid.org/0000-0002-8281-6374
                https://orcid.org/0000-0002-8783-7123
                https://orcid.org/0000-0003-1422-1616
                https://orcid.org/0000-0002-7559-8903
                https://orcid.org/0000-0001-5695-5998
                Article
                ijms-22-07466
                10.3390/ijms22147466
                8306634
                34299085
                d415e2cc-b772-4eb9-851c-614183716fa3
                © 2021 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( https://creativecommons.org/licenses/by/4.0/).

                History
                : 01 June 2021
                : 08 July 2021
                Categories
                Article

                Molecular biology
                peptides,antimicrobial activity,acne vulgaris,antioxidant properties,photosensitivity,bacterial cellulose

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