scholarly journals Effect of saponification on composition of unsaponifiable matter in rice bran oil

2012 ◽  
Vol 61 (5) ◽  
pp. 241-247 ◽  
Author(s):  
L. S. Afinisha Deepam ◽  
C. Arumughan
Keyword(s):  
Unsaponifiable Matter ◽  
Rice Bran ◽  
Rice Bran Oil

Encapsulation of Unsaponifiable Matter of Rice Bran Oil Bychitosan and Lepidium perfoliatum Seed Gum: Characterization and Antioxidant Activity

2020 ◽  
Vol 97 (10) ◽  
pp. 1131-1140
Author(s):  
Mahboobeh Jamshidi ◽  
Reza Esmaeilzadeh Kenari ◽  
Ali Motamedzadegan ◽  
Pourya Biparva
Keyword(s):  
Antioxidant Activity ◽  
Unsaponifiable Matter ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Seed Gum

scholarly journals Utilization of unsaponifiable matter from rice bran oil fatty acid distillate for preparing an antioxidant-rich oleogel and evaluation of its properties

2020 ◽  
Vol 71 (1) ◽  
pp. 336
Author(s):  
S. Sahu ◽  
M. Ghosh ◽  
D. K. Bhattacharyya
Keyword(s):  
Differential Scanning Calorimetry ◽  
Fatty Acid ◽  
Light Microscopy ◽  
Unsaponifiable Matter ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Polarized Light ◽  
Weight Basis ◽  
Scanning Calorimetry ◽  
Fatty Acid Distillate

Rice bran oil fatty acid distillate (RBOFAD) is an important by-product obtained from the physical refining process. This fatty acid distillate contains high a amount of Unsaponifiable Matter (γ-oryzanol 3.27 gm/100gm UM; total tocopherol 10.93 mg/100 g UM; total phytosterol 21.81 g/100g UM; squalene 1.15 g/100 g UM and total fatty alcohol 73.34 g/100 g UM) and free fatty acids. Antioxidant-rich Oleogels were obtained from rice bran wax (RBW), rice bran oil fatty acid distillate (RBOFAD) and refined rice bran oil. The main objective of this study was to utilize the antioxidant-rich unsaponifiable matter of RBOFAD (UMRBOFAD) as an organogelator along with rice bran wax, which also acts as a good organogelator. Antioxidant-rich oleogel was prepared using UMRBFAD, ethylcellulose (EC) and RBW at 2%, 2%, 3% on weight basis, respectively, in refined rice bran oil and this antioxidant-rich oleogel was compared with rice bran oil oleogel using RBW at 7% on weight basis of rice bran oil. These oleogels were evaluated using a combination of techniques such as differential scanning calorimetry (DSC), polarized light microscopy (PLM), Viscosity, synchrotron radiation X-ray diffraction (SR-XRD) and FTIR Spectroscopy. The differential scanning calorimetry (DSC) measured the thermal properties of rice bran oil oleogel and high antioxidant-rich oleogel. Polarized light microscopy images revealed needle-like crystals for RBW. SR-XRD measurements were used for clarification of the crystal structures of the building blocks of these oleogels. The antioxidant activities of oleogels were evaluated involving DPPH and ABTS assays.

scholarly journals (369)Unsaponifiable Matter of Rice Bran Oil I.

1951 ◽  
Vol 54 (11) ◽  
pp. 737-739
Author(s):  
Ryohei Kaneko ◽  
Tomotaro Tsuchiya
Keyword(s):  
Unsaponifiable Matter ◽  
Rice Bran ◽  
Rice Bran Oil

scholarly journals Isolation of the unsaponifiable matter (squalene, phytosterols, tocopherols, γ-oryzanol and fatty alcohols) from a fatty acid distillate of rice bran oil

2018 ◽  
Vol 69 (3) ◽  
pp. 262 ◽  
Author(s):  
S. Sahu ◽  
M. Ghosh ◽  
D. K. Bhattacharyya
Keyword(s):  
Fatty Acid ◽  
Unsaponifiable Matter ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Physical Refining ◽  
Extraction Process ◽  
Fatty Alcohols ◽  
Hexane Extraction ◽  
The Individual ◽  
Fatty Acid Distillate

Rice bran oil is characterized by its unique composition of unsaponifiable matter such as oryzanol, squalene, sterols, tocopherols and fatty alcohols. Rice bran oil fatty acid distillate (RBOFAD) is an important by-product of physical refining plants. In the present study, an appropriate fractionation methodology is proposed for isolating the unsaponifiable matter into two fractions, squalene, phytosterols and fatty alcohols as fraction 1; tocopherols and γ- oryzanol as fraction 2. The two fractions together constitute the total unsaponifiable matter in the RBOFAD. The individual unsaponifiable matter components (γ-oryzanol 1.78g/100g, squalene 209.63 mg/100g, tocopherol 2.45mg/100g, total phytosterols 3.79g/100g and fatty alcohols 94.23g/100g) were isolated from RBOFAD by combining a chemical esterification process and liquid-liquid extraction process with 95% ethanol which extracted tocopherol, γ-oryzanol, sterols, squalene, FFA, monoglycerides; later with hexane extraction of the alkaline phase to remove squalene, sterols and fatty alcohols. The alkaline salts of tocopherols and γ-oryzanol are decomposed by the acidification and extraction of the unsaponifiable matter with n-hexane.

scholarly journals P-0179 Effects of γ-Oryzanol and Unsaponifiable Matter from Rice Bran Oil on Colon Carcinogenesis in Rats

2012 ◽  
Vol 23 ◽  
pp. iv82
Author(s):  
Hung Ke-Chen ◽  
Wei-Fang Hsu ◽  
Sing-Chung Li ◽  
Chun-Kuang Shih
Keyword(s):  
Unsaponifiable Matter ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Colon Carcinogenesis
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