Dictionary > Diglyceride

Diglyceride

Definition
noun, plural: diglycerides
A glyceride consisting of a glycerol and two fatty acid molecules joined through ester linkages
Supplement
Glycerides are esters formed from glycerol reacting with fatty acids. Their primary function is to serve as fat storage molecules. They may be classified based on the number of fatty acids reacting with glycerol. The fatty acids can react with one, two, or all three of the hydroxyl functional groups of the glycerol to form monoglycerides, diglycerides, or triglycerides, respectively.
A diglyceride is an ester from glycerol with two fatty acid molecules joined through ester linkages. It occurs naturally and artificially. For instance, it is produced in many seed oils. In the industry, it is produced primarily through glycerolysis for use as emulsifiers. It is used as an ingredient in baked products, confections, chewing gum, margarine, ice cream, beverages, etc. In humans, the dietary source of diglycerides is food containing triglycerides. The triglyceride is digested and broken down into monoacylglycerol (monoglyceride), diacylglycerol (diglyceride), or free fatty acids.
Diglycerides are essential for their biological role. For instance, they serve as a signaling lipid molecule, Munc13 Activation, a source for prostaglandins, a precursor of 2-arachidonoylglycerol (an endocannabinoid), and an activator of TRPC3/6/7 (a subfamily of transient receptor potential canonical cation channels).
Diglycerides may be converted into triglycerides by the addition of a third fatty acid through the catalytic action of diglyceride acyltransferase.
Word origin: di– (two) + glyceride
Synonym(s):

  • dioacylglycerol

See also:

  • glyceride
  • fatty acid
  • triglyceride
  • monoglyceride


  • You will also like...

    Freshwater aquatic plankton
    Freshwater Communities & Plankton

    Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

    Gibberellins and Gibberellic Acid
    Gibberellins and Gibberellic Acid

    This tutorial describes the role of gibberellin family in plants. Find out the effects of gibberellin on plant growth an..

    Evolution of Life - Ancient Earth
    Evolution of Life – Ancient Earth

    Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

    Homeostatic Mechanisms and Cellular Communication
    Homeostatic Mechanisms and Cellular Communication

    Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..

    river
    Running Water Freshwater Communities

    This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..

    Fossil trilobite imprint in the sediment
    Insects

    There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

    Related Articles...

    No related articles found

    See all Related Topics