نوع مقاله : مقاله پژوهشی
نویسندگان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The aim of this study was to evaluate the different properties of bioactive peptides (weight less than 3 kDa) nanoencapsulated with a combined coating of nanoliposome and chitosan. Accordingly, the wastes of shrimp processing and packaging centers were hydrolyzed using Neuterase enzyme and the antibacterial, antioxidant and antihypertensive properties of the product were evaluated in the form of five treatments including P (free peptides), NP (peptide-carrying nanoliposomes), NP-CH-0.05 (peptide-carrying nanoliposomes with a coating of 0.05% chitosan), NP-CH-0.1 (peptide-carrying nanoliposomes with a coating of 0.1% chitosan) and NP-CH-0.5 (peptide-carrying nanoliposomes with a coating of 0.5% chitosan). The results showed that all research treatments have certain antibacterial, antioxidant and antihypertensive properties. P and NP treatments provided almost equal values for all three properties and their properties did not differ significantly (p>0.05). Chitosan-coated treatments had significantly more antibacterial, antioxidant and antihypertensive properties than P and NP treatments (p<0.05). In chitosan-coated treatments, with increasing the amount of chitosan in the coating, all three mentioned properties were significantly increased (p<0.05). Among the research treatments, the highest growth inhibition activity of Escherichia coli, Bacillus cereus and Staphylococcus aureus (45.89±0.96, 34.82±0.75 and 49.67±1.45%, respectively), the maximum amount of inhibition of DPPH, ABTS and linoleic acid peroxidation (63.52±2.86, 73.91±0.29 and 89.06±2.11%, respectively) and also the most effective antihypertensive property (37.91±1.29%) were related to NP-CH-0.5 treatment.
کلیدواژهها [English]
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