The oil palms (Elaeis guineensis) Fig.1 shows comprise two species of the Arecaceae, or palm family. Mature trees are single-stemmed, and grow up to 20m tall. The leaves are pinnate, and reach between 3 and 5m long. The flowers are produced in dense clusters; each individual flower is small, with three sepals and three petals. Unlike, the coconut palm, the oil palm does not produce offshoots; propagation is by sowing the seeds. The fruit takes 5–6 months to mature from pollination to maturity; it comprises an oily, fleshy outer layer (the pericarp), with a single seed (kernel), also rich in oil [1]. Oil palm (Elaeis guineensis Jacq.) is the highest yielding edible oil crop in the world. It is cultivated in 42 countries in 11 million ha worldwide [2]. Oil palms are commonly used in commercial agriculture in the production of palm oil. Thus, oil palm is considered as a multipurpose and economically significant crop in many developing countries. The area under oil palm cultivation is likely to greatly increase over the next two decades. In Thailand, for example, the Royal Thai Government has a policy of a 5-fold expansion in the area under oil palm cultivation over the next 20 years[3]. Oil palm is now increasingly noticed when the Thai government has set its policy on producing palm oil-based biodiesel as a renewable energy. An experiment of mixing 2% of the B2 biodiesel with 98% of diesel oil on trucks will be undertaken during 2006-2010. After that, the B5 biodiesel will be used with other types of car in 2011 and the percentage of the biodiesel combination will rise to B10 in 2012. To fulfill the government’s ambition, a daily production of 8.5 million liters of biodiesel must be met. This means another five million rai (800,000 hectares) of oil palm plantation areas must be expanded between 2006 and 2009, totaling eight million rai (1.2 million hectares) of the palm cultivation. By 2029, the plantation areas will reach 10 million rai (1.6 million hectares).[4]