کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7586836 1492075 2017 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quality preservation of deliberately contaminated milk using thyme free and nanoemulsified essential oils
ترجمه فارسی عنوان
نگهداری کافی از شیرهای عمدی آلوده شده با استفاده از روغن های ضروری آزاد و نانو امولسیفونی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
The objective of this study is to evaluate the effect of either a solution of Thymus capitatus essential oil or its nanoemulsion on the quality of milk contaminated by bacteria. After 24 h of S. aureus inoculation, bacterial growth reached 202 × 103 CFU/ml in the presence of the essential oil while it was limited to 132 × 103 CFU/ml when treated with nanoemulsion. The reduction of antioxidant capacity of milk treated with essential oil was higher when treated with nanoemulsion. Moreover, free essential oil was more efficient in protecting proteins from degradation than the nanoemulsion. For instance, after 24 h of E. hirae contamination, 26% of the total proteins were consumed in the presence of nano-encapsulated essential oil, while only 14% of the initial content was consumed when free essential oil was added. Concerning milk acidity increase and the inhibition of peroxide production, no statistical differences have been recorded between the use of free essential oil or its nano-emulsion. In conclusion, bulk or nano-encapsulated T. capitatus essential oil preserve milk quality and can extend its shelf life.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 217, 15 February 2017, Pages 726-734
نویسندگان
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