کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8415535 | 1545523 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanoencapsulated Thymus capitatus essential oil as natural preservative
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کلمات کلیدی
MICInhibition zone diameterOral acute toxicityMBCIC50DPPHLD50SDS1,1-diphenyl-2-picrylhydrazyl - 1،1-دیفنیل-2-پریکیل هیدرازیلGC–MS - GC-MSminimum bactericidal concentration - حداقل غلظت باکتریMinimum inhibitory concentration - حداقل غلظت مهاریsodium dodecylsulfate - سدیم دودسیل سولفاتgas chromatography–mass spectrometry - طیف سنجی جرم کروماتوگرافی گازEssential oil - عطرمایه یا اسانسAntioxidant activity - فعالیت آنتیاکسیدانیAntibacterial activity - فعالیت ضد باکتریmedian lethal dose - میانگین دوز مرگبارNanoemulsion - نانوامولسیون
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
In the present study, a nanoemulsion was developed to improve the functional performance of Thymus capitatus essential oil (thyme EO) as natural food preservative. Thyme EO was submitted to phytochemical prospection and its safety limit was evaluated by acute oral toxicity. Hereafter, the EO was nanoencapsulated and the antioxidant and antibacterial activities of bulk and encapsulated EO were examined. Results showed that concentrations up to 2 g·kgâ 1 b.w. of T. capitatus EO did not present any toxic effects. Moreover, results exhibited an enhancement of nanoencapsulated EO antibacterial activity. In fact, nanoemulsion demonstrated higher growth inhibition diameters than free EO (15.8 and 9.8 mm, against Staphylococcus aureus, respectively). Furthermore, nanoemulsion exhibited significant lower minimum inhibitory concentration against all tested bacteria than bulk EO. However, nanoencapsulating T. capitatus EO decreased significantly its antioxidant activity. Indeed, for DPPH test, free EO IC50 concentrations were considerably lower than those of the nanoencapsulated form (300 and 390 μg·mLâ 1, respectively). As well, the capacity of T. capitatus EO to inhibit the β-carotene bleaching has been reduced after its nanoencapsulation. These results provide useful information for designing effective natural preservative able to inhibit food bacterial spoilage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Innovative Food Science & Emerging Technologies - Volume 45, February 2018, Pages 92-97
Journal: Innovative Food Science & Emerging Technologies - Volume 45, February 2018, Pages 92-97
نویسندگان
Mariem Ben Jemaa, Hanen Falleh, Raja Serairi, Marcos A. Neves, Mejdi Snoussi, Hiroko Isoda, Mitsutoshi Nakajima, Riadh Ksouri,