کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7583874 | 1492021 | 2019 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The influence of the extraction temperature on polyphenolic profiles and bioactivity of chamomile (Matricaria chamomilla L.) subcritical water extracts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The main goal of this research was to determine the relationship among chemical structure, bioactivity and temperature of chamomile during subcritical water extraction in isobaric conditions (45â¯bar) at seven different temperatures (65-210â¯Â°C). The influence of temperature on phenolic profiles was defined by UHPLC-HESI-MS/MS. The overall results indicate that the presence of conjugated double bonds, side chains, glucose moiety or ether moiety in molecules influence the efficiency of polyphenols' extraction in subcritical water. In terms of antioxidant activity, the extracts were the most active towards ABTS radicals (IC50â¯=â¯7.3-16.8â¯Âµg/mL), whereby temperature of 150â¯Â°C was optimal. On the other hand, the extracts obtained at 115â¯Â°C showed highest cytotoxicity. Inhibition of α-amylase and α-glucosidase was the highest at 65 and 85â¯Â°C, i.e. 0.51 and 4.13â¯mmolAE/g, respectively. Activity against tyrosinase was the highest at 210â¯Â°C (17.92â¯mgKAE/g). The data showed that different non-phenolic compounds may also participate in bio-activities of the extracts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 271, 15 January 2019, Pages 328-337
Journal: Food Chemistry - Volume 271, 15 January 2019, Pages 328-337
نویسندگان
Aleksandra CvetanoviÄ, Jaroslava Å varc-GajiÄ, Zoran ZekoviÄ, Jelena JerkoviÄ, Gokhan Zengin, UroÅ¡ GaÅ¡iÄ, Živoslav TeÅ¡iÄ, Pavle MaÅ¡koviÄ, Cristina Soares, M. Fatima Barroso, Cristina Delerue-Matos, SaÅ¡a ÄuroviÄ,