Solid-Liquid Extraction Kinetics of Flavonoids in Ficus microcarpa

2011 ◽  
Vol 396-398 ◽  
pp. 575-581
Author(s):  
Li Sheng Wang ◽  
Li Heng Liu ◽  
Man Duan ◽  
Xiong Min Liu

The solid-liquid extraction kinetics of flavonoids from Ficus microcarpa with ethanol was studied. The effects of temperature and concentration of ethanol on extraction kinetics were examined. It is found that the higher temperature and concentration of ethanol, the higher leaching yields. The leaching process can be described by outer diffusion control model before 60 min and the shrinking-core model between 60 min and 150 min. The leaching process kinetics equations were established, respectively.

2007 ◽  
Vol 81 (1) ◽  
pp. 236-242 ◽  
Author(s):  
Ana Bucić-Kojić ◽  
Mirela Planinić ◽  
Srećko Tomas ◽  
Mate Bilić ◽  
Darko Velić

2015 ◽  
Vol 4 (5) ◽  
Author(s):  
Umar Isah Abubakar ◽  
Lee Suan Chua ◽  
Ramlan Aziz

AbstractIn this work, the influences of particle size and solid-liquid ratio on the kinetics of green solid-liquid extraction of andrographolide from


2014 ◽  
Vol 50 (11) ◽  
pp. 1658-1664 ◽  
Author(s):  
Dušan Đ. Paunović ◽  
Snežana S. Mitić ◽  
Gordana S. Stojanović ◽  
Milan N. Mitić ◽  
Branka T. Stojanović ◽  
...  

2011 ◽  
Vol 36 (1) ◽  
pp. 103-112 ◽  
Author(s):  
ERKAN KARACABEY ◽  
LEVENT BAYINDIRLI ◽  
NEVZAT ARTIK ◽  
GIUSEPPE MAZZA

2019 ◽  
Vol 19 (2) ◽  
pp. 813-826 ◽  
Author(s):  
J.P. Pérez-Orozco ◽  
◽  
L.M. Sánchez-Herrera ◽  
E. Barrios-Salgado ◽  
M.T. Sumaya-Martínez

2017 ◽  
Vol 192 ◽  
pp. 36-44 ◽  
Author(s):  
K. Castillo-Santos ◽  
I.I. Ruiz-López ◽  
G.C. Rodríguez-Jimenes ◽  
J. Carrillo-Ahumada ◽  
M.A. García-Alvarado

2018 ◽  
Vol 7 (1) ◽  
pp. 68-73 ◽  
Author(s):  
Evgeni Simeonov ◽  
Zvezdelina Yaneva ◽  
Chavdar Chilev

AbstractA mathematical model for modeling solid-liquid extraction from plants was developed. Two extraction systems, System INicotiana tabacumL.-waterand System IIGeranium sanguineumL.-water, were investigated. The effect of agitation rate on the mode of the extraction process was studied, as the limit values in the case of internal diffusion for System I and System II were determined. The kinetics of extraction for both systems at determined technological parameters (temperature and solid/liquid ratio) was experimentally investigated. The values of the partial mass transfer coefficient,k, were determined by the Regular regime method. A four-parameter empirical model for prediction of the effective diffusivity,Deff, was also presented. The model adequacy is verified with the experimental data and shows very good coincidence.


2003 ◽  
Vol 16 (1) ◽  
pp. 66-70 ◽  
Author(s):  
Irena Vovk ◽  
Breda Simonovska ◽  
Samo Andrenšek ◽  
Teijo Yrjönen ◽  
Pia Vuorela ◽  
...  

2018 ◽  
Vol 17 (4) ◽  
pp. 827-839
Author(s):  
Eugenia Teodora Iacob Tudose ◽  
Marcela Popa ◽  
Ioan Mamaliga

Author(s):  
Venkatasubramanian Sivakumar

Background: In the growing environmental concern use of natural products, efficient processes and devices are necessary. Solid-Liquid extraction of active Ingredients from Plant materials is one of the important unit operations in Chemical Engineering and need to be enhanced. Objectives: Since, these active ingredients are firmly bound to the plant cell wall membrane, which pose mass-transfer resistance and need to get detached through the use of suitable process intensification tools such as ultrasound and suitable devices. Therefore, detailed analysis and review is essential on development made in this area through Publications and Patents. Hence, the present paper illustrates the development of ultrasound assisted device for solid-liquid extraction are presented in this paper. Methods: Advantages such as % Yield, Reduction in extraction time, use of ambient conditions, better process control, avoidance or minimizing multi stage extraction could be achieved due to the use of ultrasound in extraction as compared to conventional processes. Conclusions: Use of ultrasound to provide significant improvements in the extraction of Vegetable tannins, Natural dyes for application in Leather processing has been demonstrated and reported earlier. These enhancement could be possible through various effects of ultrasound such as better flow of solvents through micro-jet formation, mass transfer enhancement due to rupture of plant cell wall membranes through acoustic cavitation, better leaching due to micro-mixing and acoustic streaming effects. This approach would minimize material wastage; thereby, leading to eco-conservation of plant materials, which is very much essential for better environment. Hence, various methods and design for application of ultrasound assisted solid-liquid extractor device are necessary.


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