کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10215759 | 1679705 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave-assisted extraction of Vernonia amygdalina leaf for optimal recovery of total phenolic content
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
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چکیده انگلیسی
The microwave-assisted extraction conditions for the optimal yield of extracts and total phenolic content (TPC) from Vernonia amygdalina leaf were optimized using a face-centered central composite design of response surface methodology. The independent parameters were viz: irradiation time (5-15â¯min), microwave power (400-600â¯W), temperature (90-110â¯Â°C), and feed-to-solvent ratio (1:8-1:12â¯g/mL). The optimal conditions for highest yield of extract (22.34%â¯w/w) and TPC (102.24â¯mg GAE/gâ¯d.w.) were obtained at irradiation time of 8â¯min, microwave power of 416â¯W, temperature of 100â¯Â°C, and feed-to-solvent ratio of 1:8â¯g/mL. The quadratic model significantly (pâ¯<â¯0.0001) fitted the experimental data with R2 values of 0.9664 and 0.9885 for the responses (extraction yield and TPC), respectively. Furthermore, the efficiency of MAE was compared with Soxhlet, it was observed that the yields, antioxidant activity and functional groups from Fourier transform infrared (FTIR) analysis was higher than that of the Soxhlet extract.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Applied Research on Medicinal and Aromatic Plants - Volume 10, September 2018, Pages 16-24
Journal: Journal of Applied Research on Medicinal and Aromatic Plants - Volume 10, September 2018, Pages 16-24
نویسندگان
O.R. Alara, N.H. Abdurahman, S.K. Abdul Mudalip, O.A. Olalere,