pectin

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Related to pectic: pectin, Pectic Substances

pectin,

any of a group of white, amorphous, complex carbohydratescarbohydrate,
any member of a large class of chemical compounds that includes sugars, starches, cellulose, and related compounds. These compounds are produced naturally by green plants from carbon dioxide and water (see photosynthesis).
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 that occur in ripe fruits and certain vegetables. Fruits rich in pectin are the peach, apple, currant, and plum. Protopectin, present in unripe fruits, is converted to pectin as the fruit ripens. Pectin forms a colloidal solution in water and gels on cooling. When fruits are cooked with the correct amount of sugar, and when the acidity is optimum and the amount of pectin present is sufficient, jams and jellies can be made. In overripe fruits, the pectin becomes pectic acid, which does not form jelly with sugar solutions. Commercial preparations of pectin are available for jelly making. An indigestible, soluble fiber, pectin is a general intestinal regulator that is used in many medicinal preparations, especially as an antidiarrhea agent.

pectin

[′pek·tən]
(biochemistry)
A purified carbohydrate obtained from the inner portion of the rind of citrus fruits, or from apple pomace; consists chiefly of partially methoxylated polygalacturonic acids.

pectin

Biochem any of the acidic hemicelluloses that occur in ripe fruit and vegetables: used in the manufacture of jams because of their ability to solidify to a gel when heated in a sugar solution (may be referred to on food labels as E440(a))
References in periodicals archive ?
Inhibition of galectin-3 mediated cellular interactions by pectic polysaccharides from dietary sources.
Sugar helps prevent solubilization of pectic material and consequent collapse of the fruit.
The influence of acid volume, ethanol-to-extract ratio and acid-washing time on the yield of pectic substances extraction from peach pomace.
The pectic polysaccharide named bergenan BC was extracted from green leaves.
Bateman DF and RD Lumpsden Relation of Calcium content and nature of the Pectic Substances in bean hypocotyls of different ages to susceptibility to isolate of Rhizoctonia solani.
To prevent metastases, Weeks recommends modified citrus pectic, heparin, and thalidomide.
The complexity in the structure and confusion in the nomenclature have made it almost impossible to draw a clear -cut classification of NSP, however, NSP fall into three main groups as shown below, hemicelluloses, non-cellulose polymers and pectic polysaccharides (bailey, 1973).
EXTRACTION OF GREEN LABELED PECTINS AND PECTIC LIGOSACCHARIDES FROM PLANT BYPRODUCTS.
Pectinase is a generic name for a family of enzymes that catalyse hydrolysis of the glycosidic bonds in the pectic polymers [5].