Fatty acids multibranched

Rezanka analysed the fatty acid composition of several species of myxomycetes. In addition to the common fatty acids, polyunsaturated and methylene non-interrupted polyunsaturated fatty acids, for example, with 5, 9- and/or 5, 11-double bonds, were identified by GS-mass spectrometry of their corresponding oxazolines [25]. Multibranched polyunsaturated fatty acid and its four glycosides (50 -54) were isolated from seven different myxomycetes [26]. The absolute configurations of hydroxyl groups were determined by modified Mosher s method, and the glycosides were revealed to contain glucose, mannose, and rhamnose. It may be interesting that these fatty acid constituents contained by the seven species of myxomycetes were different (Table 1). 

A group termed other esters includes a large variety of functionally diverse lipids. Wax esters are a typical example. The term wax is used commonly for esters of long-chain fatty acids with long-chain primary alcohols, but sometimes it is used for the entire mixture of lipids that contain waxes. Ester waxes are present in both plants and animals where they form the water-repellent surface coating (e.g., skin surface of animals and the leaf cuticle). Esters of normal alcohols with monobranched or multibranched fatty acids have been found in the preen glands of birds (2). Complex waxes (in which either the fatty acid or the alcohol component or both has a complex structure) have been isolated from some bacteria. Diesters... 

This class of fatty acids has the general formula of R-(CH2CH-CH3CH2CH2) -CH-C = CH-COOH, where R = H. These saturated and partially unsaturated multibranched fatty acids belong to the is-oprenoid acid family, and in nature, isoprenoid acids are often found in microorganisms and plants. Phytenic acid, whose systematic name is 3,7,11,15-tetramethyl-2-hexadecenoic acid (Figure 4), is one member of this class. 

Rezanka, T. and Dembitsky, V.M. (2002) Multibranched polyunsaturated and very-longfatty acids of freshwater Israeli sponges./. Nat. Prod., 65,709-713. 

---