نوع مقاله : مقاله پژوهشی
نویسندگان
گروه کشاورزی، واحد سوادکوه، دانشگاه آزاد اسلامی، سوادکوه، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study investigated the effectiveness of alginate biopolymer containing Eryngium caucasicum extract as a potential anti-oxidant and antimicrobial active packaging on chicken meat's quality characteristics and shelf life during storage (4 oC). The treatments included uncoated fillets (distilled water as a control), coated with E. caucasicum extract in two concentrations of 0.75% and 1.5%, and coated with active alginate packaging containing two concentrations of the extract, a total of five treatments. Microbial and chemical parameters were evaluated at 0, 3, 6 and 12 intervals. The results indicated that E. caucasicum extract had concentration-dependent antimicrobial and especially antioxidant properties. As well as the effectiveness of the extract in alginate-extract packaging form was maintained during storage. At the end of the storage period, the lowest means of mesophilic bacteria (5.20 log CFU/g), total volatile nitrogen (17.35 mg/100g), peroxide value (2.25 meq/kg) and thiobarbituric acid index (0.59 mg MDA/kg) were seen in the fillets coated with active packaging of alginate-extract 1.5% (P<0.05). Also, this group's mean value of pH (6.65) and water holding capacity (54.00%) were higher than other fillets. In general, it can be said that the alginate-based active packaging was able to maintain its effectiveness during storage through the slow and continuous release of E. caucasicum extract, thus, as active packaging, can elongate the shelf life of refrigerated storage chicken fillets for at least 3 days
کلیدواژهها [English]
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