scholarly journals Kinetics of microwave assisted extraction of pectin from Balinese orange peel using Pseudo-homogeneous model

2018 ◽  
Author(s):  
Megawati ◽  
Ria Wulansarie ◽  
Merisa Bestari Faiz ◽  
Susatyo Adi ◽  
Waliyuddin Sammadikun
Keyword(s):  
Homogeneous Model ◽  
Orange Peel ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Kinetics Of

Optimization of microwave assisted extraction of pectin from orange peel

2013 ◽  
Vol 97 (2) ◽  
pp. 703-709 ◽  
Author(s):  
J. Prakash Maran ◽  
V. Sivakumar ◽  
K. Thirugnanasambandham ◽  
R. Sridhar
Keyword(s):  
Orange Peel ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction

scholarly journals Kinetics of soursop leaves antioxidant extraction using microwave-assisted extraction

2020 ◽  
Vol 572 ◽  
pp. 012041
Author(s):  
Megawati ◽  
D S Fardhyanti ◽  
D Widjanarko ◽  
Hanifah ◽  
G M Bungsu ◽  
...  
Keyword(s):  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Kinetics Of

Study on Microwave - Assisted Extraction of the Yellow Pigment from Orange Peel

2013 ◽  
Vol 295-298 ◽  
pp. 287-292 ◽  
Author(s):  
Xiu Hua Tang
Keyword(s):  
Microwave Power ◽  
Mass Concentration ◽  
Orthogonal Experiment ◽  
Orange Peel ◽  
Yellow Pigment ◽  
Process Conditions ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Microwave Time

The article is about extracting the yellow pigment from orange peel with the aid of microwave.It mainly studies the effect of concentration of ethanol,the ratio of material and solution,microwave time,microwave power on the extraction percent of yellow pigment .The Orthogonal experiment shows that the order of factors which influence the extraction rate are microwave time,microwave power and mass concentration of ethanol. The optimized process conditions are mass concentration of ethanol as 85%,the ratio of material and solution as 1:16g/mL,microwave time as 8 minutes,microwave power as 200W,the extraction percent of yellow pigment can be 8.59%.

scholarly journals Isothermal green microwave-assisted extraction of caffeine from guarana: a kinetic study

2017 ◽  
Vol 6 (6) ◽  
Author(s):  
Biljana Koturevic ◽  
Borivoj Adnadjevic ◽  
Jelena Jovanovic
Keyword(s):  
Microwave Heating ◽  
Model Fitting ◽  
Water Extract ◽  
Isoconversional Method ◽  
Microwave Assisted Extraction ◽  
Exponential Factor ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Caffeine Extraction ◽  
Kinetics Of

AbstractThe kinetics of isothermal green microwave-assisted extraction of caffeine from guarana seed powder with water at a temperature range from 40°C to 60°C was investigated. The caffeine concentration in the water extract was determined by UV-Vis spectrophotometry. By applying the isoconversional method, it was established that the kinetics of the caffeine extraction from the guarana seed powder with microwave heating is an elementary kinetic process. The model fitting method was used to determine the kinetic model of the caffeine extraction under microwave heating. It was found that the kinetics of the caffeine extraction can, under microwave heating, be modeled by the Jander’s model of three dimensional diffusion. The kinetic parameters, activation energy and pre-exponential factor of the caffeine extraction were determined.

scholarly journals Kinetic Study on Chlorophyll and Antioxidant Activity from Polyscias fruticosa (L.) Harms Leaves via Microwave-Assisted Extraction

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3761
Author(s):  
Thi-Thuy-Dung Nguyen ◽  
Quoc-Duy Nguyen ◽  
Thi-Van-Linh Nguyen
Keyword(s):  
Antioxidant Activity ◽  
Microwave Power ◽  
Order Kinetic ◽  
Microwave Assisted Extraction ◽  
Total Polyphenols ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Order Kinetic Model ◽  
High Antioxidant Activity ◽  
Kinetics Of

Polyscias fruticosa (L.) leaves contain significant bioactive compounds with high antioxidant activity such as chlorophylls, total polyphenols, etc. but these have still been underutilized. In this study, the kinetics of chlorophyll and antioxidant activity extraction from P. fruticosa leaves by microwave-assisted extraction (MAE) were investigated. Microwave power was 300, 450, or 600 (W); the ratio of material/solvent varied from 1:40 to 1:80 (g/mL). In this study, the second-order kinetic model successfully predicted the change of chlorophyll and antioxidant activity during MAE. The increase of microwave power or/and the solvent amount increased saturated extraction efficiency and the extraction rate constant. However, the saturated concentration of chlorophyll and antioxidant activity increased with the increment of microwave power and the decrease in solvent amount.

Microwave assisted extraction as an important technology for valorising orange waste

2014 ◽  
Vol 38 (6) ◽  
pp. 2278-2283 ◽  
Author(s):  
Thomas M. Attard ◽  
Baillie Watterson ◽  
Vitaliy L. Budarin ◽  
James H. Clark ◽  
Andrew J. Hunt
Keyword(s):  
Fold Increase ◽  
Microwave Assisted Extraction ◽  
Two Stage ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Orange Waste ◽  
Stage Process ◽  
Conventional Extraction ◽  
Kinetics Of

Kinetics of microwave-assisted d-limonene extraction demonstrates a five-fold increase in yield over conventional extraction in a two stage process.

Sign in / Sign up

Export Citation Format

Share Document