Anti-atherogenic and Nephroprotective Effects of Tocotrienol Rich Fraction (TRF) from Palm Oil and Rice Bran Oil

This study aimed to use the Chemometrics approach, namely cluster analysis (CA), discriminant analysis (DA) and Vectorial Angle Method (VAM) to analyze palm oil in rice bran oil (RBO). RBO was extracted from fresh rice bran in China and palm oil from Malaysia. Simulated adulteration of palm oil in RBO was designed and the amounts of fatty acid content under different adulteration were detected by gas chromatography (GC). DA and CA were used for the classification of RBO and RBO mixed with palm oil based on GC data. The VAM was exploited for the quantification of palm in RBO. The clustering analysis showed that no misclassification for RBO and RBO mixed with palm oil when adulteration is over 9%, and discriminant analysis reached a maximum classification accuracy of 100%.

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Analysis of Rice Bran Oil Adulterated with other Edible Oils by GC

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.781-784.1806 ◽

2013 ◽

Vol 781-784 ◽

pp. 1806-1810

Author(s):

Hong Xia Li ◽

Min Zhi ◽

Xin Lu ◽

Jun Jie Zhang ◽

Mei Ting Li

Keyword(s):

Fatty Acids ◽

Soybean Oil ◽

Rice Bran ◽

Palm Oil ◽

Sunflower Oil ◽

Edible Oils ◽

Rice Bran Oil ◽

Cottonseed Oil ◽

The People

Since rice bran oil (RBO) is well-known by consumer and more expensive than other oils, some RBO is adulterated with other cheap oils, such as cottonseed oil (CO), palm oil (PO), sunflower oil (SFO) and soybean oil (SO). The types and content of FAs in RBO changes great after adulterated, this will seriously affect the quality of the rice and the people health. In this study, GC was used to detect the change of fatty acids (FAs) after adulterated with those inferior oils. The analysis will provide a reference for the RBO adulteration problem.

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The effect of ethoxylate nonionic surfactants on phase inversion temperature and salinity: an alternative approach for vegetable oil recovery from spent bleaching earth

MATEC Web of Conferences ◽

10.1051/matecconf/201819203042 ◽

2018 ◽

Vol 192 ◽

pp. 03042

Author(s):

Gitsada Panumonwatee ◽

Ampira Charoensaeng ◽

Noulkamol Arpornpong

Keyword(s):

Soybean Oil ◽

Vegetable Oils ◽

Rice Bran ◽

Palm Oil ◽

Phase Inversion ◽

Nonionic Surfactants ◽

Rice Bran Oil ◽

Bleaching Earth ◽

Crude Palm Oil ◽

Optimum Salinity

An accurate determination of the hydrophilic-lipophilic nature of surfactants plays an important role in guiding microemulsion formation. The objective of this study is to determine the effect of ethoxylate numbers (EONs) (3, 5, and 7 moles) of nonionic surfactants on a phase inversion temperature (PIT) and optimum salinity based on the equivalent alkane carbon numbers (ACNs) of vegetable oils. Three vegetable oils, soybean oil, crude rice bran oil and crude palm oil, were selected for use as a surrogate oil to represent the residual oils found in spent bleaching earth. In this study, the hydrophilic-lipophilic deviation (HLD) was used to predict the optimum salinity (0-20 %wt.) at various temperatures (25-55°C). The results showed that the ACNs of crude rice bran oil, crude palm oil, and soybean oil were 15.41±0.35, 13.71±0.41, and 17.60±0.28, respectively. In comparison, these predictions with the experimental results, the data showed slight deviations in the optimum salinity with the specific temperature. Finally, the ACN and the surfactant characteristics obtained in this study were combined with the HLD equation and used to validate its practically and utility for guiding the optimum microemulsion formulation.

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