scholarly journals Lipase Catalyzed Synthesis of Neutral Glycerides Rich in Micronutrients from Rice Bran Oil Fatty Acid Distillate

2008 ◽  
Vol 57 (11) ◽  
pp. 599-603 ◽  
Author(s):  
Sumit Nandi ◽  
Sarbani Gangopadhyay ◽  
Santinath Ghosh
Keyword(s):  
Fatty Acid ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Fatty Acid Distillate

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 NON-Catalytic and glycerol-free biodiesel production from rice bran oil fatty acid distillate in a microreactor

2021 ◽  
pp. 100096
Author(s):  
Nattee Akkarawatkhoosith ◽  
Tiprawee Tongtummachat ◽  
Amaraporn Kaewchada ◽  
Attasak Jaree
Keyword(s):  
Fatty Acid ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Biodiesel Production ◽  
Fatty Acid Distillate

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 Continuous catalyst-free biodiesel synthesis from rice bran oil fatty acid distillate in a microreactor

2020 ◽  
Vol 6 ◽  
pp. 545-549
Author(s):  
Nattee Akkarawatkhoosith ◽  
Amaraporn Kaewchada ◽  
Attasak Jaree
Keyword(s):  
Fatty Acid ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Catalyst Free ◽  
Biodiesel Synthesis ◽  
Fatty Acid Distillate

scholarly journals Enzymatic Degumming of Rice Bran Oil Using Different Commercial Phospholipases and Their Cocktails

Life ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1197
Author(s):  
Mayara S. Rodrigues ◽  
Rafaela M. Dos Passos ◽  
Paula V. de A. Pontes ◽  
Marcela C. Ferreira ◽  
Antonio J. A. Meirelles ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Vegetable Oil ◽  
Rice Bran ◽  
Phosphorus Content ◽  
Rice Bran Oil ◽  
Reaction Times ◽  
Oil Refining ◽  
Residual Phosphorus ◽  
Enzymatic Degumming

Rice bran oil is a highly nutritious vegetable oil, as it is rich in tocols and γ-oryzanol. Degumming is the first step in the vegetable oil refining process, and its main objective is the removal of phospholipids or gums. In the present study, enzymatic degumming trials were performed on crude rice bran oil using the phospholipases PLA1, Purifine® PLC, their mixture (PLA1/PLC), and a cocktail known as Purifine® 3G. Enzymatic degumming applying 50 mg/kg of PLA1 for 120 min resulted in a residual phosphorus content of 10.4 mg/kg and an absolute free fatty acid increase of 0.30%. Enzymatic degumming applying 300 mg/kg of Purifine® PLC for 120 min at 60 °C resulted in a residual phosphorus content of 67 mg/kg and an absolute diacylglycerol increase of 0.41%. The mixture of phospholipases and the cocktail presented approximately 5 mg/kg of residual phosphorus content after the reaction times. For all degumming processes, the preservation of minor components such as tocols and γ-oryzanol were observed. These results indicate that the use of enzyme mixtures or their cocktails to attain low phosphorus content and high diacylglycerol/free fatty acid conversion during enzymatic degumming is a viable alternative.

scholarly journals Effect of rice bran oil addition on the oxidative degradation and fatty acid composition of soybean oil during heating

2019 ◽  
Vol 18 (4) ◽  
pp. 427-438
Author(s):  
M. Abbas Ali ◽  
◽  
M. Azizul Islam ◽  
Noor Hidayu Othman ◽  
Ahmadilfitri Md Noor ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Soybean Oil ◽  
Acid Composition ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Oxidative Degradation
Sign in / Sign up

Export Citation Format

Share Document