Fatty alcohols source indicators

The C12-C18 fatty acid fractions, approximately 85% of the coconut oil fatty acid composition, are the primary raw materials for detergent-grade fatty alcohols. Coconut oil is a primary source of basic oleochemicals and a host of other oleochemical derivatives. Figure 1 indicates some of the major processes by which... 

Ester, feed grade (33.4), is the product consisting of methyl, ethyl, and other nonglyceride esters of fatty acids derived from animal and/or vegetable fats. It consists predominantly of the ester and must contain not less than 85% total fatty acids, not more than 10% free fatty acids, not more than 6% unsaponifiable matter (2% for methyl esters), and not more than 1 % insoluble matter. Its source must be stated in the product name, e.g., methyl ester of animal fatty acids or ethyl ester of vegetable oil fatty acids. Methyl esters must contain not more than 150 ppm (0.015%) free methyl alcohol. If an antioxidant is used, the common name or names must be indicated, followed by the words used as a preservative. This feed fat includes FDA regulation 573.640 ... 

Polyprenols, polyprenyl alcohols acyclic, polyiso-prenoid alcohols. P. occur free or esterified with higher fatty acids in microorganisms, plants and animals. The natural source and the number of isoprene units is usually indicated in the names of P., e. g. betulapie-nol-8 is formed from 8 isoprene units and is found in Betula verrucosa. 

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