Newer Processing Methods for the Extraction & Refining of Rice Bran Oil By S. M. Javed Husain MUEZ-HEST INDIA PVT. LTD. Global Rice Bran Oil Conference 2015 August 7-8 th 2015 Trident Hotel, Mumbai, India
Rice Bran Seed Rice is the seed of the monocot plants Oryza sativa (Asian rice) or Oryza Glaberrima (African rice). As a cereal grain, it is the most important staple food for a large part of the world's human population, especially in East Asia, Southeast Asia, South Asia, the Middle East, and the West Indies.
Global Rice Paddy Production & Area Source- Food & Agriculture Organization of United Nations
Extraction of Rice Bran Oil Raw Material Conditioning Hydraulic Pressing Meal Cooling Value Addition De Sludging Sludge Crude Oil By Products Refining RBD Oil
Characteristics Composition of Rice Bran Full Fat Rice Bran Semifat Rice Bran Defatted Rice Bran Whole Wheat Flour Moisture (%) 11.2 9.2 10.3 12.1 Fat Content (%) 20 8 0.9 1.8 Total Carbohydrate (%) 33 41.8 41.1 72.2 Protein (%) 14.9 19.2 19.3 10 Crude Fiber (%) 12.7 10.1 14.4 2.4 Ash Content 7.9 11.7 10-13 1.7 Silica Content (%) 0.34 0.31 0.29 0.09 P Content (mg/g) 11.0 9.8 2.58 - γ- Oryzanol (%) 3.2 2.11 1.52 - Energy (kcal/100gm) 381.6 316 249.7 344.2
Physical & Chemical Properties of Crude & RBD Rice Bran Oil Characteristics Unit Value Crude Oil Refined Oil Iodine Value (gl 2 /100g) 95-100 99-108 Peroxide Value (Meq/kg) 3.12 1.0 Max Moisture (%) 0.5-1 0.05 Max Colour Tintometer 20Y+2.8R 10Y+1.0R Acid Value (mg KoH/gm) 10-30 1.2 Free Fatty Acid (As oleic Acid) (%) 5-15 0.05 Max Saponification Value (mg KoH/gm) 187 180-190 Unsaponifiable Matter % 4.5-5.5 3-5 Oryzanol ppm 20000 12000-18000 Total Tocopherol mg/kg 1500 200 (0.02%) Smoke Point (Degree C) 160 213 Fire Point (Degree C) 198 352 Cloud Point (Degree C) 11 17 Refractive Index at 25 0 C 1.729 1.470-1.473 Specific Gravity at 25 0 C 0.91-0.92 0.916-0.921 Density 0.913-0.920 0.913-0.920
Glyceride & Fatty Acid Composition of Rice Bran Oil Glycerides Content (%) Fatty Acid Content (%) Boiling Point (ºC/ 10 mmhg) Monoglycerides 5-6 Myristic Acid 0.4-0.6 193 Diglyceride 2-3 Palmitic Acid 11.7-16.5 212 Triglycerides 81.3-84.3 Steric Acid 1.7-2.5 227 Oleic Acid 39.2-43.7 223 Linoleic Acid 26.4-35.1 224 Linolenic Acid 0.4-3.8 225 Archidic Acid 0.4-0.6 170
Physical Refining of Crude Rice Bran Oil with Value Addition Crude RBO Water Degumming Gums (Rice Lecithin ) Value Addition Degumming Agent (Enzyme) Enzymatic Assisted Conditioning Bleaching Agents Bleaching High Purity Fatty Acid Distillate Value Addition Filtration Dewaxing & Filtration Physical Refining Winterization & Filtration Spent Bleaching Agents Crude Wax Value Addition Fatty Acid with high content of tocopherol Value Addition Crude Wax Value Addition Refined RBO
Data Generated at Pilot Scale Processing Step Color Acid Number Phosphorous (ppm) Oryzanol wt % Crude Oil 44* 31 621 1.6 Water Degumming 44* 31 148 1.6 Enzymatic Conditioning 51* 31.6 148 - Bleaching 32** 31.6 9 1.6 Dewaxing 27** 31.2 4.8 - *¼ cell ** 1 cell
Water Degumming
Enzymatic Dry Degumming
Factors affecting Enzymatic Degumming Enzyme Dosage Temperature ph Time
Steam Bleaching with PLF
PLC Automated Dewaxing ( Crystallization) PLC DISPLAY
Features of Crystallizer Muez Hest s Specialty Crystallizer. PLC Automated Dewaxing brings down Cloud Point below 6ºC.
Deodorization with Short Path Distillation
Features of Deodorizer with Short Path Distillation Controlled Temperature and Pressure High Vacuum Low Heat Transfer No Polymerization of Oil Low Trans Fat Formation in Oil High Retention of Oryzanol Content in Oil Low Mechanical Damage to Oil Optimum Steam Utilization Thermic Fluid can be used for longer time due to low temperature.
Winterization (Crystallization) for Cloud Point 0ºC
Lecithin Plant New Technology
Phospholipid Content & Composition of some selected Vegetable Oils Source % in Oil PC (%) PE (%) PI (%) *Soybean 2-4 20-22 21-23 18-20 **Rice Bran 1-2 20-23 18-20 6-7 Rapeseed 1-2 20-25 15-22 15-18 Sunflower 0.5-1.0 42-65 30-46 21-37 Groundnut 0.4-0.5 45-50 14-18 20-22 Cottonseed 1-1.5 34-36 20-24 20-22 Palm 0.5-0.7 25.30 30-35 20-25 * Issue of GMO and Non GMO ** Free from issue of GMO Phospholipid Composition of both Soybean and Rice Bran Lecithins are almost similar Note :- PC : Phosphotidal Choline PE : Phosphotidal Ethanolamine,PI : Phosphotidal Inositol
Why Rice Bran Lecithin is Superior to Soya Lecithin? Fatty acid Soya lecithin Rice bran lecithin Rice bran lyso lecithin 14:0-0.2-16:0 10.8 19.1 18.2 18:0 4.0 1.4 1.5 18:1 24.2 43.2 43.5 18:2 54.8 35.2 35.1 18:3 6.3 0.9 1.7 Acid Value of Rice Bran and Soya Lecithin: 25-30 Rice Bran Lecithin More Oxidative Stability due to less content of Linoleic and Linolenic acids Rice Bran Lecithin contains Oryzanol and Tocotrienols which enhances its Value, hence very useful as efficient emulsifier, growth promoter and so on
Phospholipid Composition of Lyso Rice Lecithin Crude Rice Bran Oil Phosphatidyl Choline 20.4 23.1 Phosphatidyl Etyhanolamine 17.8 20.2 Dewaxed Rice Bran Oil Phosphatidyl Inositol 5.8 6.6 Other Phospholipids 9.4 10.8 Triglycerides 39.2 35.2 Wax 3.1 - Carbohydrates, sterols, FFA 4.0 3.8 Moisture 0.3 0.3
Properties & Uses of lecithin Emulsifiers Wetting Agents Viscosity Modifiers Release Agents Separating Agents Extrusion Aids Anti-Dusting Agents Shelf- Life Aids Nutritional Supplements
RICE BRAN OIL SAMPLES
Rice Bran Oil Samples Crude Rice bran Oil Rice Bran Bleached Oil Winterized Refined Rice Bran Oil COLOUR 1-20 UNITS FFA 0.07% COLOUR 1 -<8 UNITS CLOUD POINT- 0ºC
Facilities R&D Centre Drawing & Design Proto validation
MUEZ-HEST S Strategic Initiatives Drawing & Design Laboratory Pilot Plant
R & D Centre
R & D Lab
Pilot Plant
Recognition and Approvals
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