Investigation of Physicochemical and Microbial Properties of Chitosan / Silver / Cumin Extract Nanocomposite Film (L. Cuminum cyminum)

Document Type : Research Paper

Authors

1 Free University of Damghan

2 Assistant Professor of Food Science and Technology, Faculty of Agriculture, Islamic Azad University, Damghan

Abstract

Background: Polyphenols with antioxidant properties are responsible for the health and antimicrobial properties of L. Cuminum cyminum. Materials and Methods: In this study, the physicochemical and microbial properties of silver (Ag), chitosan (Ch) containing L. Cuminum cyminum extract (E) were investigated. L. Cuminum cyminum extract was first extracted by ultrasonic extraction and water / ethanol solvent extraction methods. The extract was subjected to total phenol tests, tocopherol. In the following, chitosan / silver nanocomposite film (0.15 mol/ l) was prepared at three concentrations of 0.2, 0.4 and 1% of cumin extract and subjected to physicochemical tests (thickness measurement, water vapor passage rate, Scanning Electron Microscope (SEM), film solubility, resistance). Tensile and film length increase at the moment of tear) and microbial (no growth zone diameter). Results: The results showed that the extract of L. Cuminum cyminum extracted by massage method had high phenolic compounds (74.18 mg / g dry weight) and tocopherol (24.05 mg alpha-tocopherol / g dry weight). Experimental results showed that by increasing L. Cuminum cyminum extract to 1% film thickness (0.093 mm), water vapor passage rate (3.81 g / s.m2, film solubility (26.45%) and increasing film length in The tearing moment (30.21%) showed a significant increase (P <0.05), but the tensile strength of the film (16.10 MPa) decreased with increasing concentration.The results of microbial test showed that with increasing the extract concentration L. Cuminum cyminum increased by 1% the antimicrobial activity of chitosan / silver nanocomposite film, microbial results showed that the chitosan / silver nanocomposite film containing antiseptic extract had antimicrobial activity against Staphylococcus aureus> Aspergus, respectively. Los niger> Candida albicans> E. coli, respectively. Conclusions: This study showed generally good quality feature film for food packaging is closed.Background: Polyphenols with antioxidant properties are responsible for the health and antimicrobial properties of L. Cuminum cyminum. Materials and Methods: In this study, the physicochemical and microbial properties of silver (Ag), chitosan (Ch) containing L. Cuminum cyminum extract (E) were investigated. L. Cuminum cyminum extract was first extracted by ultrasonic extraction and water / ethanol solvent extraction methods. The extract was subjected to total phenol tests, tocopherol. In the following, chitosan / silver nanocomposite film (0.15 mol/ l) was prepared at three concentrations of 0.2, 0.4 and 1% of cumin extract and subjected to physicochemical tests (thickness measurement, water vapor passage rate, Scanning Electron Microscope (SEM), film solubility, resistance). Tensile and film length increase at the moment of tear) and microbial (no growth zone diameter). Results: The results showed that the extract of L. Cuminum cyminum extracted by massage method had high phenolic compounds (74.18 mg / g dry weight) and tocopherol (24.05 mg alpha-tocopherol / g dry weight). Experimental results showed that by increasing L. Cuminum cyminum extract to 1% film thickness (0.093 mm), water vapor passage rate (3.81 g / s.m2, film solubility (26.45%) and increasing film length in The tearing moment (30.21%) showed a significant increase (P <0.05), but the tensile strength of the film (16.10 MPa) decreased with increasing concentration.The results of microbial test showed that with increasing the extract concentration L. Cuminum cyminum increased by 1% the antimicrobial activity of chitosan / silver nanocomposite film, microbial results showed that the chitosan / silver nanocomposite film containing antiseptic extract had antimicrobial activity against Staphylococcus aureus> Aspergus, respectively. Los niger> Candida albicans> E. coli, respectively. Conclusions: This study showed generally good quality feature film for food packaging is closed.Background: Polyphenols with antioxidant properties are responsible for the health and antimicrobial properties of L. Cuminum cyminum. Materials and Methods: In this study, the physicochemical and microbial properties of silver (Ag), chitosan (Ch) containing L. Cuminum cyminum extract (E) were investigated. L. Cuminum cyminum extract was first extracted by ultrasonic extraction and water / ethanol solvent extraction methods. The extract was subjected to total phenol tests, tocopherol. In the following, chitosan / silver nanocomposite film (0.15 mol/ l) was prepared at three concentrations of 0.2, 0.4 and 1% of cumin extract and subjected to physicochemical tests (thickness measurement, water vapor passage rate, Scanning Electron Microscope (SEM), film solubility, resistance). Tensile and film length increase at the moment of tear) and microbial (no growth zone diameter). Results: The results showed that the extract of L. Cuminum cyminum extracted by massage method had high phenolic compounds (74.18 mg / g dry weight) and tocopherol (24.05 mg alpha-tocopherol / g dry weight). Experimental results showed that by increasing L. Cuminum cyminum extract to 1% film thickness (0.093 mm), water vapor passage rate (3.81 g / s.m2, film solubility (26.45%) and increasing film length in The tearing moment (30.21%) showed a significant increase (P <0.05), but the tensile strength of the film (16.10 MPa) decreased with increasing concentration.The results of microbial test showed that with increasing the extract concentration L. Cuminum cyminum increased by 1% the antimicrobial activity of chitosan / silver nanocomposite film, microbial results showed that the chitosan / silver nanocomposite film containing antiseptic extract had antimicrobial activity against Staphylococcus aureus> Aspergus, respectively. Los niger> Candida albicans> E. coli, respectively. Conclusions: This study showed generally good quality feature film for food packaging is closed.Background: Polyphenols with antioxidant properties are responsible for the health and antimicrobial properties of L. Cuminum cyminum. Materials and Methods: In this study, the physicochemical and microbial properties of silver (Ag), chitosan (Ch) containing L. Cuminum cyminum extract (E) were investigated. L. Cuminum cyminum extract was first extracted by ultrasonic extraction and water / ethanol solvent extraction methods. The extract was subjected to total phenol tests, tocopherol. In the following, chitosan / silver nanocomposite film (0.15 mol/ l) was prepared at three concentrations of 0.2, 0.4 and 1% of cumin extract and subjected to physicochemical tests (thickness measurement, water vapor passage rate, Scanning Electron Microscope (SEM), film solubility, resistance). Tensile and film length increase at the moment of tear) and microbial (no growth zone diameter). Results: The results showed that the extract of L. Cuminum cyminum extracted by massage method had high phenolic compounds (74.18 mg / g dry weight) and tocopherol (24.05 mg alpha-tocopherol / g dry weight). Experimental results showed that by increasing L. Cuminum cyminum extract to 1% film thickness (0.093 mm), water vapor passage rate (3.81 g / s.m2, film solubility (26.45%) and increasing film length in The tearing moment (30.21%) showed a significant increase (P <0.05), but the tensile strength of the film (16.10 MPa) decreased with increasing concentration.The results of microbial test showed that with increasing the extract concentration L. Cuminum cyminum increased by 1% the antimicrobial activity of chitosan / silver nanocomposite film, microbial results showed that the chitosan / silver nanocomposite film containing antiseptic extract had antimicrobial activity against Staphylococcus aureus> Aspergus, respectively. Los niger> Candida albicans> E. coli, respectively. Conclusions: This study showed generally good quality feature film for food packaging is closed.

Keywords

References

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Food Research Journal
Volume 31, Issue 2
July 2021
Pages 35-50

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