Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities
The effect of chitosan-epigallocatechin gallate conjugate (CS-EGCG) at various ratios (10:0, 9:1, 8:2, 7:3, 6:4 and 5:5, w/w) and glycerol (30 and 50%, w/w) on mechanical, barrier and optical properties of CS films and CS/CS-EGCG composite films was studied. CS films added with 30 or 50% glycerol (C...
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| Format: | Article |
| Language: | English English |
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Elsevier
2021
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| Online Access: | https://eprints.ums.edu.my/id/eprint/31359/1/Composite%20film%20based%20on%20chitosan%20and%20epigallocatechin%20gallate%20grafted%20chitosan_%20characterization%2C%20antioxidant%20and%20antimicrobial%20activities_ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/31359/2/Composite%20film%20based%20on%20chitosan%20and%20epigallocatechin%20gallate%20grafted%20chitosan_%20characterization%2C%20antioxidant%20and%20antimicrobial%20activities.pdf |
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| author | Ajay Mittal Avtar Singh Soottawat Benjakul Thummanoon Prodpran Krisana Nilsuwan Nurul Huda Koro de la Caba |
| author_facet | Ajay Mittal Avtar Singh Soottawat Benjakul Thummanoon Prodpran Krisana Nilsuwan Nurul Huda Koro de la Caba |
| author_sort | Ajay Mittal |
| collection | UMS |
| description | The effect of chitosan-epigallocatechin gallate conjugate (CS-EGCG) at various ratios (10:0, 9:1, 8:2, 7:3, 6:4 and 5:5, w/w) and glycerol (30 and 50%, w/w) on mechanical, barrier and optical properties of CS films and CS/CS-EGCG composite films was studied. CS films added with 30 or 50% glycerol (CS-30G or CS-50G, respectively) had high tensile strength and elongation at break. Generally, CS/CS-EGCG composite films had higher resistance to light transmission than CS films (p < 0.05). With augmenting concentrations of CS-EGCG, films with lower lightness (L*) and higher redness (a*) and yellowness (b*) were obtained. Therefore, among composite films, those with CS/CS-EGCG ratio of 8:2, containing 30 or 50% glycerol, were selected for further analyses in comparison to CS films. Composite films, regardless of glycerol levels, showed higher antioxidant and antimicrobial activities as compared to CS films (p < 0.05). Overall, CS/CS-EGCG (8:2) composite films had satisfactory physical properties with increased antimicrobial and antioxidant activities and could serve as promising packaging for food shelf-life extension. |
| first_indexed | 2024-03-06T03:12:48Z |
| format | Article |
| id | ums.eprints-31359 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-03-06T03:12:48Z |
| publishDate | 2021 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | ums.eprints-313592021-12-06T00:01:48Z https://eprints.ums.edu.my/id/eprint/31359/ Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities Ajay Mittal Avtar Singh Soottawat Benjakul Thummanoon Prodpran Krisana Nilsuwan Nurul Huda Koro de la Caba TP248.13-248.65 Biotechnology The effect of chitosan-epigallocatechin gallate conjugate (CS-EGCG) at various ratios (10:0, 9:1, 8:2, 7:3, 6:4 and 5:5, w/w) and glycerol (30 and 50%, w/w) on mechanical, barrier and optical properties of CS films and CS/CS-EGCG composite films was studied. CS films added with 30 or 50% glycerol (CS-30G or CS-50G, respectively) had high tensile strength and elongation at break. Generally, CS/CS-EGCG composite films had higher resistance to light transmission than CS films (p < 0.05). With augmenting concentrations of CS-EGCG, films with lower lightness (L*) and higher redness (a*) and yellowness (b*) were obtained. Therefore, among composite films, those with CS/CS-EGCG ratio of 8:2, containing 30 or 50% glycerol, were selected for further analyses in comparison to CS films. Composite films, regardless of glycerol levels, showed higher antioxidant and antimicrobial activities as compared to CS films (p < 0.05). Overall, CS/CS-EGCG (8:2) composite films had satisfactory physical properties with increased antimicrobial and antioxidant activities and could serve as promising packaging for food shelf-life extension. Elsevier 2021 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/31359/1/Composite%20film%20based%20on%20chitosan%20and%20epigallocatechin%20gallate%20grafted%20chitosan_%20characterization%2C%20antioxidant%20and%20antimicrobial%20activities_ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/31359/2/Composite%20film%20based%20on%20chitosan%20and%20epigallocatechin%20gallate%20grafted%20chitosan_%20characterization%2C%20antioxidant%20and%20antimicrobial%20activities.pdf Ajay Mittal and Avtar Singh and Soottawat Benjakul and Thummanoon Prodpran and Krisana Nilsuwan and Nurul Huda and Koro de la Caba (2021) Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities. Food Hydrocolloids, 111. pp. 1-10. ISSN 0268-005X https://www.sciencedirect.com/science/article/pii/S0268005X20318658?casa_token=UXudzFLmBEEAAAAA:LJDH6VFKwKmqev_YSlilbPe8EShuDh6Z9o38jFG5Y18XO7p6NwiRq1DDoYHYhLw7-9tOjlqgvTU https://doi.org/10.1016/j.foodhyd.2020.106384 https://doi.org/10.1016/j.foodhyd.2020.106384 |
| spellingShingle | TP248.13-248.65 Biotechnology Ajay Mittal Avtar Singh Soottawat Benjakul Thummanoon Prodpran Krisana Nilsuwan Nurul Huda Koro de la Caba Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities |
| title | Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities |
| title_full | Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities |
| title_fullStr | Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities |
| title_full_unstemmed | Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities |
| title_short | Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities |
| title_sort | composite film based on chitosan and epigallocatechin gallate grafted chitosan characterization antioxidant and antimicrobial activities |
| topic | TP248.13-248.65 Biotechnology |
| url | https://eprints.ums.edu.my/id/eprint/31359/1/Composite%20film%20based%20on%20chitosan%20and%20epigallocatechin%20gallate%20grafted%20chitosan_%20characterization%2C%20antioxidant%20and%20antimicrobial%20activities_ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/31359/2/Composite%20film%20based%20on%20chitosan%20and%20epigallocatechin%20gallate%20grafted%20chitosan_%20characterization%2C%20antioxidant%20and%20antimicrobial%20activities.pdf |
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