کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8880238 1624794 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simple and rapid procedures for the extraction of bioactive compounds from Guayule leaves
ترجمه فارسی عنوان
روش های ساده و سریع برای استخراج ترکیبات زیست فعال از برگ های
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Solid liquid extraction (SLE) and ultrasound-assisted extraction (UAE) using food grade solvents were applied to Guayule leaves in order to obtain phenolic compound-rich extracts. The influence of solvent composition and time were evaluated for both techniques reaching the highest phenolic content with UAE using water and 25% aqueous ethanol (27.0 ± 0.2 and 22 ± 2 mg gallic acid equivalents/g dried leaves, respectively) and with SLE using water and 50% aqueous ethanol (16 ± 1 and 17 ± 1 mg/g, respectively). Antioxidant and antiradical activities of the selected extracts were evaluated by means of spectrophotometric procedures. In addition HPLC-ESI-QTOF-MS was used to characterize the bioactive compounds in the richest extracts. A variety of phenolic compounds, mainly phenolic acids and flavonoids, were identified for the first time in Guayule leaves. This study indicates that conventional extraction techniques, such as SLE and UAE, represent a powerful tool for the fast isolation of antioxidant compounds from Guayule.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 116, June 2018, Pages 162-169
نویسندگان
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