In Thailand, S. oleosa named Ta-Khro is found in
the Northern, North-eastern, South-eastern, Southwestern
and Central region. It is used in the wood
industry. The wood is suitable for fuelwood and
charcoal, the bark is used as dye and the young
leaves are eaten as vegetable.
In this study, Ta-Khro seeds were blended and
macerated with hexane. The oil was then separated
and hexane was evaporated in vacuo. The fatty acid
composition was investigated by GC/MS after
methylation. Ta-Khro seed contain 40.3% oil with
yellowish brown color. Fatty acid profile showed 16
components. Linolelaidic acid, the trans form of linoleic
acid, was found as dominant fatty acid (49.7%). The
next below were eicosenoic acid or gondoic acid
(29.5%), palmitic acid (7.6%), linoleic acid (5.6%) and
oleic acid (2.8%) (Table 1).
Oleic acid was previously well-known as major fatty
acid in Kusum oil1). However Basu’s study showed the
different result which reported 50% linoleic acid3). This
study revealed the trans fatty acid in S. oleosa seed oil.