GRADE DESIGNATION | MOISTURE and insoluble impurities percent by weight (not more than) | Colour on Lovibond scale* in 1/4-inch cell expressed as Y ± 5 R (not deeper than) | Specific gravity at 30C/30C | Refractive Index at 40C | Saponification value | Iodine value method | Unsaponifiable matter percent by weight (max.) | Acid value (maximum) |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
REFINED | 0.10 | 10 | 0.913 TO 0.920 | 1.4645 TO 1.4675 | 187 TO 195 | 103 TO 128 | 1.5 | 0.5 |
Description
- Maize (corn) oil shall be obtained by a process of expression from the germs of clean and sound seeds of the plant Zea mays Linn. fam. Gramineae which are separated from the remainder of the kernel the wet or dry milling process in the manufacture of starch or glucose. The oil shall be refined by Neutralization, with bleaching earth and/or activated carbon and deodorized with steam. No other chemical agent shall be used.
General Requirements
- The oil shall be clear and free from turbidity when a filtered sample of oil is kept at 300C for 24 hours. The oil shall be free from rancidity, adulterants, sediments, suspended and foreign matters, other oils and substances, mineral oil, separated water and added colour and flavouring substance and obnoxious odour. The oil may contain permitted anti-oxidants not exceeding in concentration as specified under Prevention of Food Adulteration Rules 1955.