کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4754016 | 1417604 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The photostability of flavanones, flavonols and flavones and evolution of their antioxidant activity
ترجمه فارسی عنوان
عکس پذیری فلاوانون، فلاونول ها و فلاون ها و تکامل فعالیت های آنتیاکسیدانی آنها
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کلمات کلیدی
عکسبرداری، اکسیداسیون، فلاونوئید، فعالیت آنتیاکسیدانی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
The objective of this paper is to study the effect the light on the stability of 6 flavonoids with different structures under different oxygen amounts. The evolution of their antioxidant activity and the identification of degradation products were also investigated. The results obtained indicated that the kinetics of flavonoid degradation are not only influenced by the light intensity and the oxygen amount but also by the flavonoid structure. The 6 flavonoids can be ranked below according to their stability: naringin, eriodictyol then rutin, luteolin, luteolin-7-O-glucoside and mesquitol. The presence of a hydroxyl group in position 3 and a double bond C2-C3 decrease flavonoid stability. Moreover, it was also observed that despite the total degradation of some flavonoids, the treated solutions still have an antioxidant activity. The identification of the degraded products by LC-MS showed that the degradation pathways are different according to the flavonoid studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 336, 1 March 2017, Pages 131-139
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 336, 1 March 2017, Pages 131-139
نویسندگان
Hind Chaaban, Irina Ioannou, Cedric Paris, Céline Charbonnel, Mohamed Ghoul,