화학공학소재연구정보센터
Bioresource Technology, Vol.73, No.2, 195-196, 2000
Extraction, analysis and utilization of a drying-oil from Tetracarpidium conophorum
Tetracarpidium conophorum (conophor) is known in the southern Nigeria as Ukpa (Igbo) and serves as an edible nut eaten in-between meals. It serves no other use. The golden yellow oil extracted from this nut by solvent extraction has been shown to be a rapidly drying oil. The yield was calculated as 48-52%. The acid value and free fatty acid values indicated that the oil has a fairly low acidity, and thus is in a high state of purity. The iodine value was quite high, comparing very well with those of linseed oil, and perilla oil which are drying oils. The UV-vis absorbance at 400 nm was consistent with the golden yellow colour. The infra-red spectrum suggested on oil in a high state of purity and the ester functional group at 1746.20 cm(-1) was quite characteristic. The oil was useful in the formulation of stand oil, vulcanized oil for rubber and leather substitutes. It was also used in formulating a wood varnish.