Ghaemi, V. (2016) Effects of chitosan film containing Colpomenia sinuosa extract and hydrolyzed protein of Clupeonella cultriventris on the quality of Hypophthalmichthys molitrix fillet during refrigerated. Masters thesis, University of Zabol.
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Abstract
The objective of this research was to the investigate of chitosan film containing Colpomenia sinuosa algae extract and fish protein hydro-lysates on quality of silver carp fillets during refrigerated storage. In this study, different percentages of C. sinuosa algae extract and FPH (1, 2 and 3%) were prepared. To determine of optimum percentage, the antibacterial activity and DPPH antioxidant activity of extract and hydrolyzed protein were measured. According to the results chitosan film containing extract and FPH with concentration of 2% showed highest antibacterial and antioxidant activity. fillets prepared in five groups; control, chitosan film 2%, chitosan film 2% containing optimum algae extract, chitosan film 2% containing optimum hydrolyzed protein, chitosan film 2% containing optimum protein hydro-lysates + optimum algae extract, packed and stored in a refrigerator (4°c). Then chemical (pH, PV, TBA, TVB-N) and microbial parameter (TVC and PTC) were measured on 16 days. The result chemical and microbial of samples shown that the lowest, PV, TBA, pH and TVB-N. In all treatments such as chitosan film 2% containing protein hydro-lysates 1% + algae extract 1% treatment during refrigerated storage. TBA value of chitosan film 2% containing protein hydro-lysates 1% + algae extract 1% treatment was an acceptable level in the end of storage. TVB-N value was less than acceptable level. Thus addition of C. sinuosa algae extract and FPH in chitosan such as Edible Film caused improved of film for Silver carp Fillet during storage.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Colpomenia sinuosa algae extract, protein hydro-lysates, silver carp, DPPH |
| Subjects: | S Agriculture > SH Aquaculture. Fisheries. Angling |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 11 Dec 2016 06:43 |
| Last Modified: | 11 Dec 2016 06:43 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/1104 |
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