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by Petejon on September 27th, 2006

Petejon

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How is glycerol ester of wood rosin made? What is it made from?

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Answers. 2 helpful answers below.

  • by Kevisaurus is a Carnotaurus today on May 8th, 2007

    Kevisaurus is a Carnotaurus today

    Glycerol esters of resin acids of wood rosins used as food
    additives in beverages and chewing gum are those prepared from wood
    rosin that is harvested from the stumps of the longleaf pine (Pinus
    palustris) and purified to a beverage-grade ester gum. The resin
    acid composition of wood rosin can vary considerably; however, the
    main resin acids in ester gum are abietic acids, with smaller contents
    of dehydroabietic and neoabietic acids; pimaric acids, including
    isopimaric and sandaracopimaric acids; and palustric acid. The
    toxicology of glycerol esters of wood rosins harvested from the stumps
    of the pine tree is different from that of glycerol esters from
    tall-oil and gums, which are not used for the preparation of food
    additives. The latter are therefore not reviewed or evaluated in this
    monograph addendum.

    for more, read the whole report: http://www.inchem.org/documents/jecfa/jecmono/v37je02.htm

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  • by looney on October 1st, 2006

    looney

    In general, an ester is made by dissolving a carboxylic compound in an alcohol and adding catalytic acid (usually sulfuric acid). In this case, the compounds involved are wood rosin and glycerol (aka glycerin).

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