https://jopr.mpob.gov.my Wed, 17 Nov 2021 02:16:54 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://jopr.mpob.gov.my/determination-of-antioxidants-in-palm-oil-products-by-high-performance-liquid-chromatography/ Tue, 16 Nov 2021 15:55:51 +0000 https://jopr.mpob.gov.my/V2/?p=10597 Tertiary butyl hydroquinone (TBHQ),butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) were found to be the common antioxidants used in the palmoil industry.They are added to palm oil products either singly or in combination products either singly or in combination within the permissible limit of 200 parts per million. A procedure for the determination of the phenolic antioxidants which is based on the AIIBP method using a single step methanolic extraction and reverse phase gradient elution by HPLC was proven to be very simple and reliable.

]]> https://jopr.mpob.gov.my/identification-of-palm-oil-and-its-fractions-by-hplc-using-triacylglycerol-peak-area-ratios/ Sat, 13 Nov 2021 16:17:34 +0000 https://jopr.mpob.gov.my/V2/?p=9387 The concept of peak-area ratios in reversed-phase HPLC of triacylglycerols in palm oil and palm oil fractions was expanded and tested by analysis of numerous authentic samples. Palm oil fractionation changes the tripalmitin and triolein peaks and peak-area ratios. To expand the database, a large number of palm oils, palm oleins and palm stearins of Malaysian origin were investigated and the results compiled. Variability of the peak areas and peak-area ratios with changes of solvents is discussed. Peak-area ratios were found to be useful in identifying palm oils from different sources as well as in detecting possible admixtures of oils.

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