Quality of nigerian palm oil after bleaching with local treated clays

• DOI: 10.1007/bf02546063
• Publication Date: 2007-01-05T06:04:02Z
• Authors: Nnadozie N. Nkpa; T. A. Arowolo; H. J. Akpan
• Keywords: Bentonite; Cleanser; Refining (metallurgy); Peroxide

Abstract Laboratory investigations into the possibility of using local Nigerian clays in refining crude palm oil revealed that Okija clay may possess some potential as an adsorptive cleanser process. Activated bentonite was used standard comparison, and performance two natural clays, leached with various concentrations sulfuric acid, evaluated for their use alternative cleansers oil. Measurements peroxide values, para‐anisidine carotene content stabilities oils active oxygen method were assessing relative clays. The exhibited similar trend effects on identical batches alkali‐neutralized In one set experiments poor results obtained when degummed treated acid at 1M 4M. Better 2M 3M. Bentonite proved better than leaching performed H 2 SO 4 , but both had comparable effectiveness 3M leaching. Nsu gave least encouraging results. another series showed dosages clay, up to 3% by weight be refined, oxidative stability processed reasonably good which neither deodorized nor antioxidants.