Polarization measurements shows that mangrove tannins

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Unformatted text preview: of the uniform corroded surface, localized corrosion and distribution of pits was reduced after treatment with tannin in HCl, NaCl and H 2SO4 respectively. The experimental part revealed the presence of anion Cl in inhibitors solution favor the adsorption of cationic form of tannin and catechin onto Al surface. The inhibition of corrosion could be aroused mainly by electrostatic interaction as deduced from Temkin isotherm. Results from the experiment al measurements shows tannin behaved as catechin. According to the theoretical calculation, protonated catechin showed the lowest energy of adsorption interaction between catechin+H+Al+Cl represented the strong adsorption. The chemical potential properties of catechin show that catechin as well as tannin can perform good anticorrosion properties. POSTER PRESENTATION (MATERIAL) MAT-P1 EFFECT OF RED PALM OIL ON LIPID PROFILES OF RATS 1 Eqbal Dauqan, Halimah Abdullah and Aminah Abdullah 1 2 1 2 Department of Biochemistry, Faculty Science and Technology, University Kebangsaan Malaysia Department of Food science, Faculty Science and Technology, University Kebangsaan Malaysia E-mail: edouqan@yahoo.com The objective of the study was to evaluate the effect of Red Palm Oil (RPO) on lipid profiles of rats. Seventy eight rats were randomly divided into thirteen groups of 6 rats per group were treated with different concentrations of RPO (5, 10 and 15 %) for 2, 4 and 8 weeks. Rats in control group were given normal rat pellet only while in treated groups 5, 10 and 15 % of additional RPO were given. Results showed a decline in low density lipoprotein cholesterol (LDL -C) values whereas the high density lipoprotein cholesterol (HDL-C) values increased. Rats treated with 15 % RPO for 8 week showed an increased in LDL-C value (26.69 ±1.18 mg/dL) compared to control group (23.2 ±2.31 mg/dL). The results of total cholesterol (TC), triglyceride (TG) in all treated rats were within the normal range. There was no significantly different in TC and TG of rats treat...
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