scholarly journals A Green Protocol for Microwave-Assisted Extraction of Volatile Oil Terpenes from Pterodon emarginatus Vogel. (Fabaceae)

Molecules ◽  
2018 ◽  
Vol 23 (3) ◽  
pp. 651 ◽  
Author(s):  
Giuliana M. Vila Verde ◽  
Diogo A. Barros ◽  
Marilene Oliveira ◽  
Gilberto Aquino ◽  
Danilo M. Santos ◽  
...  
Keyword(s):  
Volatile Oil ◽  
Microwave Assisted Extraction ◽  
Green Protocol ◽  
Microwave Assisted ◽  
Assisted Extraction

scholarly journals Valorization of Glycine max (Soybean) Seed Waste: Optimization of the Microwave-Assisted Extraction (MAE) and Characterization of Polyphenols from Soybean Meal Using Response Surface Methodology (RSM)

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Cerile Ypolyte Woumbo ◽  
Dieudonné Kuate ◽  
Mathilde Julie Klang ◽  
Hilaire Macaire Womeni
Keyword(s):  
Glycine Max ◽  
Dry Matter ◽  
Soybean Seed ◽  
Total Phenolic ◽  
Soybean Seeds ◽  
Microwave Assisted Extraction ◽  
Quadratic Effect ◽  
Green Protocol ◽  
Microwave Assisted ◽  
Assisted Extraction

The present study aimed at determining the optimal conditions for extraction of total phenolic compounds from soybean (Glycine max) meal, a by-product of the soybean seeds industry, using a green protocol with microwave-assisted extraction (MAE). A face-centered composite design (FCCD) was used for optimization. Based on a screening aimed to determine the factors that significantly influenced the responses, a 50% hydro-ethanolic solution was used with solvent/dry matter ratio (60/1–110/1), power (120–270 W), and time (0–10 min) as factors, while the responses studied were total phenolic and flavonoid contents. FTIR, TLC, DPPH, and FRAP anti-oxidants tests were used to characterize the extracts obtained with optimum conditions. The factors that significantly influenced both responses were the individual effect of all factors, the interaction between solvent/dry matter ratio and extraction time, the quadratic effect of solvent/dry matter ratio, and power for total phenolic content, while only the quadratic effect of power significantly influenced the flavonoid content. The highest contents of phenols (13.09 mg GAE/g) and flavonoid (7.39 mg CE/g) were obtained at 120 W for 0.16 min with a solvent/dry matter ratio of 60/1. ATR-FTIR spectra indicated the presence of polyphenolic compounds in the extract, namely flavonoids. TLC indicated the presence of at least nine compounds in the extract, among which catechin and quercetin were identified with respective Rf of 0.98 and 0.93. DPPH assay showed the anti-oxidant capacity for the extract with an IC50 of 194.98 µg/ml. RSM permitted us to develop a green protocol for maximum extraction of polyphenols from soybean seeds waste using less solvent, low power, and a reduced time in MAE.

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

Optimization of the Microwave-Assisted Extraction of Azadirachta indica (Neem) Leaves Using NMR-based Metabolic Fingerprinting

2015 ◽  
Vol 11 (3) ◽  
pp. 142-145 ◽  
Author(s):  
Simone Carradori ◽  
Luisa Mannina ◽  
Federica De Cosmi ◽  
Tamara Beccarini ◽  
Daniela Secci ◽  
...  
Keyword(s):  
Azadirachta Indica ◽  
Metabolic Fingerprinting ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Neem Leaves
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