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Intelligent and active furcellaran-gelatin films containing green or pu-erh tea extracts: Characterization, antioxidant and antimicrobial potential.
Int J Biol Macromol. 2019 Feb 01; 122:745-757.IJ

Abstract

Biodegradable films from furcellaran and gelatin (FUR/GEL) with pu-erh (RTE) and green tea (GTE) water extracts (TEs) were obtained by a casting method. The films were examined in terms of physical properties (thickness, density, water solubility, water content, degree of swelling, color), antioxidant properties (DPPH, ABTS, TPC), antimicrobial properties (Escherichia coli, Staphylococcus aureus, Candida albicans and Henseniaspora uvarum) and mechanical properties (tensile strength, elongation at break). The values of tensile strength (TS) increased from 9.62 to 24.14 or 13.59 MPa after GTE or RTE incorporation, respectively. Parameters of elongation at break were not changed. Higher color parameters: a*, b* and ∆E were observed in biocomposite films with RTE. The FUR/GEL films with GTE and RTE can be used for intelligent food packaging, due to their sensibility of pH changes. Possible interaction between the film matrix and TEs was confirmed using FTIR. The antioxidant properties were significantly enhanced with increasing GTE and RTE concentration reaching 43.92 and 48.94% of DPPH and 15.76 and 14.98% of ABTS radical inhibition, respectively. The microbiological analysis confirmed antimicrobial properties of FUR/GEL with GTE against E.coli and S. aureus (inhibition zones of 16 and 22.5 mm, respectively).

Authors+Show Affiliations

Institute of Chemistry, University of Agriculture, Balicka Street 122, PL-30-149 Cracow, Poland. Electronic address: ewelina.jamroz@urk.edu.pl.Department of Animal Products Processing, University of Agriculture, Balicka Street 122, PL-30-149 Cracow, Poland.Department of Mycology, Collegium Medicum, Jagiellonian University, Czysta Street 18, PL-31-121 Cracow, Poland. Electronic address: pawel.krzysciak@uj.edu.pl.Department of Mycology, Collegium Medicum, Jagiellonian University, Czysta Street 18, PL-31-121 Cracow, Poland. Electronic address: katarzyna.talaga@uj.edu.pl.Department of Food Analysis and Evaluation of Food Quality, University of Agriculture in Cracow, Balicka Street 122, 30-149 Cracow, Poland. Electronic address: rrjuszcz@cyf-kr.edu.pl.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30408450

Citation

Jamróz, Ewelina, et al. "Intelligent and Active Furcellaran-gelatin Films Containing Green or Pu-erh Tea Extracts: Characterization, Antioxidant and Antimicrobial Potential." International Journal of Biological Macromolecules, vol. 122, 2019, pp. 745-757.
Jamróz E, Kulawik P, Krzyściak P, et al. Intelligent and active furcellaran-gelatin films containing green or pu-erh tea extracts: Characterization, antioxidant and antimicrobial potential. Int J Biol Macromol. 2019;122:745-757.
Jamróz, E., Kulawik, P., Krzyściak, P., Talaga-Ćwiertnia, K., & Juszczak, L. (2019). Intelligent and active furcellaran-gelatin films containing green or pu-erh tea extracts: Characterization, antioxidant and antimicrobial potential. International Journal of Biological Macromolecules, 122, 745-757. https://doi.org/10.1016/j.ijbiomac.2018.11.008
Jamróz E, et al. Intelligent and Active Furcellaran-gelatin Films Containing Green or Pu-erh Tea Extracts: Characterization, Antioxidant and Antimicrobial Potential. Int J Biol Macromol. 2019 Feb 1;122:745-757. PubMed PMID: 30408450.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intelligent and active furcellaran-gelatin films containing green or pu-erh tea extracts: Characterization, antioxidant and antimicrobial potential. AU - Jamróz,Ewelina, AU - Kulawik,Piotr, AU - Krzyściak,Paweł, AU - Talaga-Ćwiertnia,Katarzyna, AU - Juszczak,Lesław, Y1 - 2018/11/05/ PY - 2018/09/17/received PY - 2018/10/31/revised PY - 2018/11/02/accepted PY - 2018/11/9/pubmed PY - 2019/4/6/medline PY - 2018/11/9/entrez KW - Edible films KW - Furcellaran KW - Gelatin SP - 745 EP - 757 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 122 N2 - Biodegradable films from furcellaran and gelatin (FUR/GEL) with pu-erh (RTE) and green tea (GTE) water extracts (TEs) were obtained by a casting method. The films were examined in terms of physical properties (thickness, density, water solubility, water content, degree of swelling, color), antioxidant properties (DPPH, ABTS, TPC), antimicrobial properties (Escherichia coli, Staphylococcus aureus, Candida albicans and Henseniaspora uvarum) and mechanical properties (tensile strength, elongation at break). The values of tensile strength (TS) increased from 9.62 to 24.14 or 13.59 MPa after GTE or RTE incorporation, respectively. Parameters of elongation at break were not changed. Higher color parameters: a*, b* and ∆E were observed in biocomposite films with RTE. The FUR/GEL films with GTE and RTE can be used for intelligent food packaging, due to their sensibility of pH changes. Possible interaction between the film matrix and TEs was confirmed using FTIR. The antioxidant properties were significantly enhanced with increasing GTE and RTE concentration reaching 43.92 and 48.94% of DPPH and 15.76 and 14.98% of ABTS radical inhibition, respectively. The microbiological analysis confirmed antimicrobial properties of FUR/GEL with GTE against E.coli and S. aureus (inhibition zones of 16 and 22.5 mm, respectively). SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/30408450/Intelligent_and_active_furcellaran_gelatin_films_containing_green_or_pu_erh_tea_extracts:_Characterization_antioxidant_and_antimicrobial_potential_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(18)34967-5 DB - PRIME DP - Unbound Medicine ER -