MATHEMATICAL MODELLING of RICE BRAN OIL EXPRESSION

1991 ◽  
Vol 14 (1) ◽  
pp. 51-68 ◽  
Author(s):  
K. SIVALA ◽  
V. VASUDEVA RAO ◽  
S. SARANGI ◽  
R. K. MUKHERJEE ◽  
N. G. BHOLE
1991 ◽  
Vol 50 ◽  
pp. 81-91 ◽  
Author(s):  
K. Sivala ◽  
N.G. Bhole ◽  
R.K. Mukherjee

2017 ◽  
Vol 901 ◽  
pp. 190-196 ◽  
Author(s):  
Ari Diana Susanti ◽  
Wahyudi Budi Sediawan ◽  
Sang Kompiang Wirawan ◽  
Budhijanto

Mathematical modelling of batch adsorption of Oryzanol separation from Rice Bran Oil (RBO) has been set-up and tested by generated experimental data. The proposed model takes into account mass transfer and equilibrium phenomena. The effects of intra-particle gradient were considered, so the adsorption rate is controlled by the rate of solute mass transfer from the bulk liquid to the surface of particles and the intra-particle diffusion. In this model, the rate of Oryzanol mass transfer from the bulk liquid to the surface of the particle is described by film theory, while the intra-particle diffusion is assumed to be through the liquid inside the pore. Furthermore the Oryzanol in the liquid in the pore was assumed to be in equilibrium with the Oryzanol on the adjacent pore surface, in which equilibrium model applied was coefficient distribution approach. The values of the parameters involved in the models were obtained by curve fitting to the experimental data. It turned out that model proposed can quantitatively describe the batch adsorption of Oryzanol adsorption from rice bran oil with silica gel.


2017 ◽  
pp. 15-21
Author(s):  
Thi Minh Nguyet Le ◽  
Thi Kim Lien Phan

Background and Objectives: For a long time, Asian women have known to use rice water, rice bran for skin care, lightening dark spots and slowing down the aging process. Gamma Oryzanol, an ester mixture of trans-ferulic acid with phytosterols and triterpene alcohols extracted from rice bran oil, has been shown to have beneficial effects on the skin, especially its antioxidant and anti-aging effect. The aims of this research were to formulate Gamma Oryzanol-loaded anti-aging cream and to evaluate the product quality. Materials and Methods: Gamma Oryzanol was imported from Japan. Some formulation parameters such as emulsifi-ers, performance modifiers were investigated and the product quality was evaluated according to the criteria of drugs and cosmetics. Results: The excipients were chosen including 1% (w/w) of Lunamer with 3% (w/w) of Prolipid as emulsifiers and 8% (w/w) of mango seed butter as a state modifier in the formulation of Gamma Oryzanol anti-aging cream. The cream is ivory-white, thick, smooth, fragrant-smelling and satisfied all criteria of developed specification. Conclusion: The study was successful in the preparation of Gamma Oryzanol anti-aging cream. Key words: Gamma Oryzanol, anti-aging cream, Franz cells.


2005 ◽  
Vol 96 (17) ◽  
pp. 1889-1896 ◽  
Author(s):  
Siti Zullaikah ◽  
Chao-Chin Lai ◽  
Shaik Ramjan Vali ◽  
Yi-Hsu Ju

Sign in / Sign up

Export Citation Format

Share Document