کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7585514 1492037 2018 43 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deep eutectic solvent-based valorization of spent coffee grounds
ترجمه فارسی عنوان
ارزش قلیایی مصرف شده بر اساس حلالهای عمیق یوتکتیک
کلمات کلیدی
زمینه های قهوه مصرفی، حلال های عمیق یوتکتیک، ترکیبات فنل، فعالیت ضد اکسید کننده، طراحی فاکتوریل دو مرحله ای، روش سطح پاسخ،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Spent coffee grounds (SCGs) are viewed as a valuable resource for useful bioactive compounds, such as chlorogenic acids and flavonoids, and we suggest an eco-friendly and efficient valorization method. A series of choline chloride-based deep eutectic solvents (DESs) were tested as green extraction solvents for use with ultrasound-assisted extraction. Extraction efficiency was evaluated based on total phenolic content (TPC), total flavonoid content, total chlorogenic acids, and/or anti-oxidant activity. A binary DES named HC-6, which was composed of 1,6-hexanediol:choline chloride (molar ratio 7:1) was designed to produce the highest efficiency. Experimental conditions were screened and optimized for maximized efficiency using a two-level fractional factorial design and a central composite design, respectively. As a result, the proposed method presented significantly enhanced TPC and anti-oxidant activity. In addition, phenolic compounds could be easily recovered from extracts at high recovery yields (>90%) by adsorption chromatography.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 255, 30 July 2018, Pages 357-364
نویسندگان
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