What are the different processing techniques of oilseeds?
Understanding of various processing techniques of oilseeds is very important. Pre-treatments like cleaning, dehulling, decortications, flaking and heat treatments assist to enhance the recovery and quality of oil during processing. Oil extraction methods including ghanies, hydraulic press, screw press and solvent extraction are discussed in detail.
Which oil is considered a refined oil?
As per the Food Safety and Standards Authority of India (FSSAI, 2006), 25 oils were categorized in refined oils category including cottonseed oil, coconut oil, soybean oil, sunflower oil, rapeseed oil, mustard oil, and groundnut oil. The oil should be clear and free from rancidity and adulterants.
What is small-scale oil production?
Small-scale oil extrac-tion is more commonplace in other parts of the world. As a result, many of the useful resource materials and much of the appropriate-scale machinery come from other countries. Th is pub-lication describes the basic processes of oilseed production, with extensive sources for additional information and equipment.
What is the process of refining oil?
The refining includes degumming, neutralization of fatty acids, bleaching and deodorization. Usually degumming process requires 1¨C3% water addition at 60¨C80 °C for about 30¨C60 min based on the type of oilseeds; however, small amount of acid may increase the solubility of phospholipids, which are capable of binding calcium and magnesium.
