scholarly journals Optimization of microwave-assisted extraction of pomegranate (Punica granatum L.) seed oil and evaluation of its physicochemical and bioactive properties

2017 ◽  
Vol 55 (1) ◽  
Author(s):  
Hasene Keskin Çavdar ◽  
◽  
Derya Koçak Yanık ◽  
Uğur Gök ◽  
Fahrettin Göğüş ◽  
...  
Keyword(s):  
Seed Oil ◽  
Punica Granatum ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Bioactive Properties ◽  
Assisted Extraction ◽  
Punica Granatum L

scholarly journals Microwave-Assisted Extraction of Ricinine from Ricinus communis Leaves

Antioxidants ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 438
Author(s):  
Liliane Nebo ◽  
Rosa M. Varela ◽  
João B. Fernandes ◽  
Miguel Palma
Keyword(s):  
Ricinus Communis ◽  
Extraction Temperature ◽  
Microwave Assisted Extraction ◽  
Extraction Solvent ◽  
Solid Ratio ◽  
Microwave Assisted ◽  
Bioactive Properties ◽  
Assisted Extraction ◽  
The Stability ◽  
Sample Ratio

The alkaloid ricinine (3-cyano-4-methoxy-N-methyl-2-pyridone) is found in different parts of the Ricinus communis plant and is known to possess several bioactive properties, including strong antioxidant activity. In this study, a new microwave-assisted extraction (MAE) method was developed for the recovery of ricinine from R. communis leaves. The extraction variables studied were extraction temperature (between 125 °C and 175 °C), microwave power (between 500 W and 1000 W), extraction time (between 5 min and 15 min), extraction solvent (between 10% and 90% of EtOAc in MeOH), and solvent-to-sample ratio (between 25:1 mL and 50:1 mL of solvent per gram of the sample). On studying the effects of extraction variables, both solvent and liquid-to-solid ratio were found to exhibit the highest effects on ricinine recovery. A fast (15 min) microwave-assisted extraction method was developed (high temperatures can be applied because the stability of ricinine is proven in the literature), allowing for the recovery of ricinine from R. communis leaves. The study revealed that R. communis leaves had almost 1.5 mg g−1 (dried weight) of ricinine.

Orthogonal test in optimizing microwave-assisted extraction process of magnolin from Magnoliae Flos

2010 ◽  
Vol 30 (5) ◽  
pp. 567-568
Author(s):  
Xiao-li LI ◽  
Ming-yuan ZHANG ◽  
Wei-quan ZHAO ◽  
Man Li ◽  
Hai-ying TENG ◽  
...  
Keyword(s):  
Extraction Process ◽  
Orthogonal Test ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction
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