pectic substance

pectic substance
noun
: any of a group of complex colloidal carbohydrate derivatives of plant origin containing a large proportion of units derived from galacturonic acid and subdivided into protopectins, pectins, pectinic acids, and pectic acids

Useful english dictionary. 2012.

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  • pectic substance — n any of a group of complex colloidal carbohydrate derivatives of plant origin that contain a large proportion of units derived from galacturonic acid and include protopectins, pectins, pectinic acids, and pectic acids …   Medical dictionary

  • Pectic — Pec tic, a. [Gr. ? curdled.] (Chem.) Of or pertaining to pectin; specifically, designating an acid obtained from ordinary vegetable jelly (pectin) as an amorphous substance, tough and horny when dry, but gelatinous when moist. [1913 Webster] …   The Collaborative International Dictionary of English

  • pectic acid — noun a complex acid that occurs in ripe fruit and some vegetables • Hypernyms: ↑acid * * * noun Etymology: French acide pectique : any of the pectic substances composed mostly of colloidal polymeric galacturonic acids and essentially free from… …   Useful english dictionary

  • pectic — pektɪk adj. pertaining to pectin (carbohydrate substance used in jams, medications, and other products) …   English contemporary dictionary

  • Economic importance of bacteria — The economic importance of bacteria derives from the fact that bacteria are exploited by humans in a number of beneficial ways. Despite the fact that some bacteria play harmful roles, such as causing disease and spoiling food, the economic… …   Wikipedia

  • cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… …   Universalium

  • wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… …   Universalium

  • Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… …   Universalium

  • pectin — pectinaceous /pek teuh nay sheuhs/, pectinous, adj. /pek tin/, n. Biochem. a white, amorphous, colloidal carbohydrate of high molecular weight occurring in ripe fruits, esp. in apples, currants, etc., and used in fruit jellies, pharmaceuticals,… …   Universalium

  • pectin — 1. Broad generic term for what are now called pectic substances or materials; specifically, a gelatinous substance, consisting largely of long chains of mostly d galacturonic acid units (typically α 1,4 linkages and sometimes present as methyl… …   Medical dictionary

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