Oil Palm Bulletin No. 39 (November 1999) p13-24

Studies on bleachability of palm kernel oil, olein and stearin : Optimum conditions and effects on composition and quality

HALIMAH Muhamad , AINIE Kuntom , ZULKIFLI Abd Rahman , NOR' ASHIKIN Saim , TANG Thin Sue

The optimization of small scale refining for the Seed Crushers and Oil Processors’ Association (SCOPA) was studied. The performance of three types of bleaching earths, WACSupreme, Pure-Flo, SBE Gold and two types of degumming agents, phosphoric acid and water were compared. The samples used were crude palm kernel oil and its fractions. The effects of bleaching earths and degumming agents on quality and composition of these oils were also investigated. SBE Gold earth had superior adsorptive cleansing capability when compared with the other bleaching earths. Results showed that phosphopric acid was a better degumming agent compared to water. It was found that the optimum temperature and dosage of clay for the bleaching of palm kernel products were at 95°C and 0.5% respectively.


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