Influence of rice bran stearin on stability, properties and encapsulation efficiency of polyglycerol polyricinoleate (PGPR)-stabilized water-in-rice bran oil emulsions

2017 ◽  
Vol 93 ◽  
pp. 26-32 ◽  
Author(s):  
Nattapong Prichapan ◽  
David Julian McClements ◽  
Utai Klinkesorn
Author(s):  
S Murali ◽  
Abhijit Kar ◽  
Avinash Singh Patel ◽  
Debabandya Mohapatra ◽  
P Krishnakumar

Abstract Response surface methodology (RSM) was used to optimize rice bran oil encapsulation using jackfruit seed starch – whey protein isolate blend as wall material by spray drying technique. Oil concentration (20, 25 and 30 %), wall material (Jackfruit seed starch & whey protein isolate) starch-protein ratio (1:1, 3:1 and 5:1) and spray drying inlet air temperature (140, 150 and 160 °C) were considered as process variables for optimization. A three-factor, three-level Box-Behnken design of RSM was used to conduct the experiments with the aim of maximizing encapsulation efficiency and minimizing peroxide value in the encapsulated powder. A polynomial regression model was fitted using design expert software, and the optimum conditions obtained were 20 % oil concentration, 3:1 starch-protein ratio and 140 °C spray drying inlet air temperature. The encapsulated rice bran oil powers obtained at optimized conditions offered 85.90 % of encapsulation efficiency and 1.18 meq/kg oil of peroxide value. The characterization study revealed that powder particles size (diameter) varied from 3.40 to 300.51 µm and most of the particles were smooth spheres with little appendages.


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

Author(s):  
Sneh Punia ◽  
Manoj Kumar ◽  
Kawaljit Singh Sandhu ◽  
William Scott Whiteside
Keyword(s):  

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