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Cyclopropenoid Fatty Acids of Sida grewioides and Hibiscus caesius (Malvaceae) Seed Oils

✍ Scribed by Husain, S. ;Babu, M. ;Ahmad, M. U. ;Ansari, A. A. ;Osman, S. M.

Publisher
John Wiley and Sons
Year
1980
Weight
344 KB
Volume
82
Category
Article
ISSN
0931-5985

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✦ Synopsis

Abstract

Evidence is provided that sterculic and malvalic acids occur together in seed oils of Sida grewioides and Hibiscus caesius. Sida grewioides oil contains 1.3% sterculic and 2.1 % malvalic acids; Hibiscus caesius oil contains 1.0 % sterculic and 5.7 % malvalic acids. The cyclopropenoid acids were characterised by gas liquid chromatography (GLC) of the silver nitrate‐methanol treated methyl esters using Sterculia foetida esters as a reference standard. A third unusual component, identified as epoxy acid, also occurs in Sida grewioides oil as a trace constituent.

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## Abstract The cyclopropenoid (Malvalic acid) fatty acid content of oils from ten varieties of cotton seeds has been determined range (0.7 to 1.3). Iodine values varied from 32.9 to 114.0. The fatty acid composition was in the following range: Myristic, 0.9‐3.0; palmitic, 18.3‐34.1; stearic, 2.2‐4