Most vegetable oils are obtained from beans or seeds, which generally furnish two valuable commodities: a fatty oil and a protein rich meal.
All vegetable oil extraction processes have certain objectives in common. They aim to maximize the oil yield, minimize damage to the oil and meal and minimize undesirable impurities in both fractions.
The preparations of raw materials includes husking, cleaning, crushing and conditioning.
Seed extraction is achieved by pressing and/or by extraction with hexane. Oils such as palm and olive, on the other hand are pressed out of the soft fruit.
After extraction, the liquid oil is skimmed; after pressing, the oil is filtered; and after solvent extraction, the crude oil is separated and the solvent is evaporated and recovered.
The residual meal or cake, which has a high protein content is usually used as a protein concentrate to feed livestock and poultry.
Crude oil refining includes degumming, neutralization, bleaching, deodorization, and further refining.
Processing of crude oils to finished edible food products is dictated by factors of consumer preference, flavor and oxidative stability characteristics and modification of liquid oils to hardened products, i.e. margarine and shortening.
Processing of vegetable oil
The primary goal of food is to promote our health and general well-being. Food science entails comprehending the characteristics, composition, and behaviors of food constituents in different situations, such as storage, handling, and consumption.
October 15, 2012
The Most Popular Posts
-
Crude fat is the term used to refer to the crude mixture of fat-soluble material present in a sample. Crude fat also known as the ether ext...
-
Resveratrol is a naturally occurring polyphenol found in a range of plants, particularly in the skin of red grapes, blueberries, raspberries...
-
Crude fiber is a measure of the quantity of indigestible cellulose, pentosans, lignin, and other components of this type in present foods. ...
-
Gelatinization occurs when starch granules are heated in a liquid. It is responsible for the thickening of food systems. The process is an i...
-
Anethole is primarily extracted from plants like anise, fennel, and star anise through various methods, with steam distillation and solvent...