SOLVENT EXTRACTION AND OIL REFINERY CUM PACKAGING OF RICE BRAN OIL
[EIRI/EDPR/1555] J.C.350, 429
INTRODUCTION
The structure of the rice kernel is illustrated in Fig.1. The bran fraction, which includes the germ or embryo in most commercial milling operations, represents only about 8% of paddy weight but contains about three-fourths of the total oil. Containing about 15-20% oil (the same general range of soybeans), rice bran is commercially feasible for oil extraction.
The typical composition of crude rice bran oil is 81.3-84.3% triglycerides, 2-3% diglycerides, 5-6% monoglycerides, 2-3% free fatty acids, 0.3% waxes, 0.8% glycolipids, 1.6% phospholipids, 4% unsaponifiables. In comparison with other vegetable oils, crude rice bran oil tends to contain higher levels of non-triglyceride components, most of which are removed during further refining processes. The free fatty acids, monoglycerides and diglycerides in rice bran oil are associated with enzymatic hydrolysis. The phospholispids predominantly include phosphatidylcholine, phosphatidylethanaolamine, and phosphatidylinositol. The wax content of rice bran oil can be somewhat variable, depending upon cultivar and processing parameters. Various sterols constitute the principal portion of the unsaponifiable fraction of nutraceutical interest. In recent years, many studies have been conducted in the area of utilization of these minor components as co-products of rice bran oil processing.
Oleic and linoleic fatty acids constitute more than 80% of the fatty acids of the glycerides. Rice bran oil is similar to peanut oil in fatty acid composition with a saturation level that is slightly higher than that of conventional soybean oil. The much lower linolenic acid content of rice bran oil makes it more stable to oxidation than soy oil.
The quality characteristics of properly refined rice bran oil include a maximum free fatty acid levels (as oleic acid) of 0.1%, a maximum peroxide value of 1.0 meq/kg, 0.05% moisture, an iodine value of 99–108, saponification value of 180-195, and a Lovibond color value of 3.5R. Appearance of rice bran oil ranges from cloudy to clear depending on the degree of dewaxing and winterization processes applied.
COST ESTIMATION
Plant Capacity 48 MT/Day
Land & Building (5 Acres) Rs. 4.51 Cr
Plant & Machinery Rs. 5.89 Cr
Working Capital for 1 Month Rs. 11.98 Cr
Total Capital Investment Rs. 23.89 Cr
Rate of Return 33%
Break Even Point 48%
CONTENTS
INTRODUCTION
USES AND SCOPE
MARKET POSITION
EDIBLE OIL DEMAND PROJECTION
LIST OF FEW RICE BRAN OIL PRODUCERS
IN THE COUNTRY
PRESENT GOVERNMENT POLICY
MODIFIED TECHNIQUE WITH MANUFACTURING
PROCESS FOR RICE BRAN OIL
B.I.S. SPECIFICATION FOR RICE BRAN OIL
B.I.S. SPECIFICATION
THEORY OF SOLVENT EXTRACTION
PROCESS OF MANUFACTURE
REFINING OF CRUDE RICE BRAN OIL
DEGUMMING
NEUTRALIZATION PROCESS
PROCESS FLOWSHEET
FLOW CHART OF A CONTINUOUS
EXTRACTION SYSTEM
MANUFACTURING PROCESS DESCRIPTION
SUPPLIER OF PLANT & MACHINERY
OF RICE BRAN OIL
GMP/GHP CRITERIA FOR FOOD
EFFLUENT TREATMENT AND DISPOSAL
APPENDIX – A:
01. PLANT ECONOMICS
02. LAND & BUILDING
03. PLANT AND MACHINERY
04. OTHER FIXED ASSESTS
05. FIXED CAPITAL
06. RAW MATERIAL
07. SALARY AND WAGES
08. UTILITIES AND OVERHEADS
09. TOTAL WORKING CAPITAL
10. TOTAL CAPITAL INVESTMENT
11. COST OF PRODUCTION
12. TURN OVER/ANNUM
13. BREAK EVEN POINT
14. RESOURCES FOR FINANCE
15. INSTALMENT PAYABLE IN 5 YEARS
16. DEPRECIATION CHART FOR 5 YEARS
17. PROFIT ANALYSIS FOR 5 YEARS
18. PROJECTED BALANCE SHEET FOR (5 YEARS)