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 ?
The content of pectic substances in culture liquids was determined by color index by measurement of optical density using a KFK-2 photocolorimeter at a wave length of 315 nm.
the present study the muskmelon peel one of the common kitchen biowastes produced in large amount each year is considered for the adsorbent preparation because it contains pectic acid which has been verified to have good affinity to the heavy metal ions [25].
12] are being used in several conventional industrial processes, such as textile, paper industries [24] coffee and tea fermentation [10], oil extraction [37], pretreatment of industrial wastewater from vegetable food processing industries containing pectic material [43], and processing and degumming of plant fibers.
The enzyme pectinase (sometimes called pectic enzyme) can be added to high-pectin fruit musts to degrade the pectin into simple sugars.
Imports of Vegetable Saps and Extracts, Pectic Substances, Pectinates and Pectates has grew month on month basis by 14.
RhamnogalacturonanII: structure and function of a borate cross-linked cell wall pectic polysaccharide.
Alterations of matrix metalloproteinases, gastric: mucin and prostaglandin L(2) levels by pectic polysaccharide of swallow root (Decalepis hamiltonii) during ulcer healing.
Pectin hydrolysis test: The ability of the microorganisms to hydrolyze pectin in to pectic acid was assessed by the test.
This behavior is due mainly to the presence of hardener substances (protopectines and pectines) that give turgor to the fruit and are transformed in pectic acids, soluble in water and sugar, through the respiration process, which gives the characteristic softness to the ripe fruit (Parra-Coronado et al.
Extraction of green labeled pectins and pectic oligosaccharides from plant byproducts.