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Articles by A.K. Arifah
Total Records ( 4 ) for A.K. Arifah
  M.A. Yassir , A.K. Arifah , H. Yaakub , A. Zuraini and Z.A. Zakaria
  Special attention has been given to the milk Fatty Acids (FA) that have a beneficial effect for human health such as mono and poly unsaturated fatty acids in particularly the Conjugated Linoleic Acids (CLA). This study was undertaken to investigate the milk fat contents of CLA variables (CLA and CLA-desaturase index) and other FA composition of Mafriwal and Jersey cows under same feeding system. In addition, the relationship between these two CLA variables with milk production and milk fat percent was determined. All the cows were grazed on pasture and given 5.5 kg of concentrate per head daily. Milk FA composition was determined using gas chromatography after extraction of milk fat using modified Folch’s method. The results showed a significant variation (p<0.05) in the FA contents of the two breeds. The cis-9, trans-11 CLA and CLA-desaturase index in milk fat of Mafriwal were significantly higher (p<0.05) than that of Jersey cows. Mafriwal cows produced significantly (p<0.05) higher concentrations of C18:0, C18:1 cis-9, C18:3 and C20:1 than that of Jersey, while Jersey cows produced significantly (p<0.05) higher concentrations of C12:0 and C14:0 than Mafriwal cows. Additionally, significant positive correlations were observed between CLA variables and milk production. This study indicates that the breed of cows has an effect on CLA and other FA composition of milk fat and Mafriwal cows produced significantly higher percentages of CLA than Jersey cows which would provide better benefits for human health. Furthermore, the milk fat content of CLA and CLA-desaturase index were positively related to the milk production.
  M.B. Achenef , A.K. Arifah , Y.M. Goh , A.Q. Sazili , O. Fauziah , Z.A. Zakaria , A. Zuraini and M.N. Somchit
  Conjugated Linoleic Acids (CLAs) are group of positional and geometric isomers of octadecadienoic acid with conjugated double bonds and believed to have many health promoting effects. The present study focused on the quantitative analysis of CLAs in liver, Superficial Pectoral (SP), Longissimus Dorsi (LD) and Semimembranosus (SM) muscles of local Malaysian Kedah-Kelantan (KK) cattle slaughtered for human consumption. Fatty acids were extracted using Folch method and determined by gas chromatography. The average content of CLAs in the liver, SP, LD and SM muscles were 38.71, 18.24, 11.03 and 13.04 mg/100 g of sample, respectively. The quantity of CLAs in the liver was significantly (p<0.05) higher than other samples. The percentages of cis-9, trans-11 CLA isomer were 63.39, 76.04, 90.66 and 82.82% of total CLAs in the liver, SP, LD and SM muscles, respectively. Positive correlations between CLAs and trans-11-octadecenoic acid concentration were observed in all samples. This study confirmed that meat from KK cattle could be the potential source of CLA but still its content has to be improved to make their meat more beneficial for consumers.
  M.B. Achenef , A.K. Arifah , Y.M. Goh , A.Q. Sazili , O. Fauziah , A. Zuraini , M.N. Somchit and Z.A. Zakaria
  This study was focused on the quantitative analysis of Conjugated Linoleic Acids (CLAs) in rumen liquor and assessment of the relationship between CLAs and other carbon 18 fatty acids and rumen pH of cattle slaughtered for meat consumption. The fatty acids were extracted using modified Folch method and determined by gas chromatography. The mean (n = 22) level of CLAs in the rumen liquor was 14.97 ±7.46 mg/100 mL. Cis-9, trans-11(c9, t11) was the dominant isomer of CLA followed by trans-10,cis-12 (t10, c12). The level of CLAs was positively correlated with the concentration of octadecatrienoic (18:3), cis-9, cis-12 octadecadienoic (18:2), trans-11octadecenoic (18:1) and octadecenoic (18:0) acids. Ruminal pH was positively correlated with the amount of c9, t11 and total CLA and negatively correlated with t10, c12 CLA isomer. All these correlations and relationships indicated that CLAs production in the rumen is dependent on availability of carbon 18 fatty acids and pH of the rumen liquor.
  Z.A. Zakaria , M.R. Sulaiman , A.K. Arifah , A.M. Mat Jais , M.N. Somchit , K. Kirisnaveni , D. Punnitharrani , M. Safarul , C.A. Fatimah and R. Johari
  The objective of this study was to elucidate the effects of C. olitorius as agent for relieving inflammation and fever. The aqueous extract of C. olitorius, in the concentration of 10, 50 and 100%, was used throughout the studies. The carrageenan-induced paw edema and brewer`s yeast-induced pyrexia assays were used as the anti-inflammatory and anti-pyretic assays, respectively. The extract, in the concentrations ranging from 50 to 100% and 10 to 100%, also exhibited significant (p<0.05) anti-inflammatory and anti-pyretic activities that lasted until the end of the experiments, respectively. In conclusion, the present studies provide scientific proof for the folklore medicinal used of C. olitorius as agent in the treatment of inflammation and fever.
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