(120f) Jojoba (Jojoba oil and Jojoba rest) As An Alternative Energy Source in Jordan

The objective of this work is to investigate the energy value of Jordanian jojoba seeds. The oil content in jojoba seeds obtained from jojoba plants cultivated in Jordan is investigated utilizing solvent extraction. The effects of extraction parameters (solvent and time) were studied. The physicochemical properties of the extracted oil (acid value (AV), saponification value (SP), the iodine value (IV), peroxide value (PV), viscosity, density heating value and ash content) were investigated. These properties are of interest when considering biodiesel manufacturing. 

The results show that hexane gave the highest oil yield at 58.76% with optimum extraction time of 30 min.

The physicochemical properties were measure as AV=0.712 mgKOH/g, SV = 93.65 mgKOH/g, IV= 43.803 g I2/100g, PV = 1.708 mEq/kg, the viscosity = 20 cp at 40oC. Such low values of these properties and the high energy content of the jojoba oil (44.308 MJ/kg) suggest the possibility of single step base catalyzed process transesterification for biodiesel manufacturing with high yield. Also, the remaining part after oil extraction (jojoba rest) has a heating value of 15. 344 MJ/kg and thus it can be used to replace solid nonrenewable fuels.