The word cereal is derived from ceres, the Roman Goddess of grain. The common cereal crops are rice, wheat, corn, oats and rye. The term cereal is not limited to these but also flours, meals, breads and alimentary pastes or pasta. Cereal science is a study concerned with all technical aspects of cereal. It is the study the nature of the cereals and the changes that occurs naturally and as a result of handling and processing.

Tuesday, October 30, 2012

Lipid content of cereal grains

Lipids present in cereals are complex as they consist of a large number of chemical classes and individuals compounds. The distribution of the classes and compounds varies with not only cereal species but also structural parts. 

Lipids –fats and oil makes up approximately 1-7% of a kernel, depending on the grain.

Wheat, rice, corn, rye and barley contain 1-2% lipids. Oats contain higher content of lipids: 4-7%, one-third of which are polar (phospholipids and galactolipids). Most lipids are concentrated in germ and aleurone. 

Maize lipids are predominantly acyltriglycerides in cultivars having a high total lipid content.

The main components of lipid is 72-85% unsaturated fatty acids, primarily, oleic acid, and linolenic acid. 

Phospholipids and glycolipids are also significantly present. Minor components include free fatty acids, tocopherols, tocotrienols, and phytosterol.
 Lipid content of cereal grains
at 9:49 PM
Labels: ,

The Most Popular Posts

  • Bread during ancient Egypt
    In ancient Egypt, bread was made as flat cakes from toasted grains of barley, whet or millet. Before the discovery of yeast all breads were ...
  • General history of barley
    Barley cultivation probably originated in the highlands of Ethiopia and in Southeast Asia in prehistoric times. It is believed to extend bac...
  • Wheat flour lipids
    Most bread wheat is milled into flour and bran for human consumption, but substantial quantities are also used to feed livestock and poultry...
  • Phytochemicals in Cereal Grains: Natural Compounds for Better Health
    Phytochemicals are naturally occurring bioactive compounds produced by plants to protect themselves from environmental stresses such as pest...
  • Malting barley for brewing
    Malt barley is one of the principal ingredients in the manufacture of beer. Brewers can either purchase malt barley to manufacture malt them...
BannerFans.com