Characteristics and properties of fatty acid distilaates from palm oil

The past surveys on the characteristics and properties of palm fatty acid distillates (PFAD) from local refineries were conducted in 1983 and 1999. This article will update the information to monitor any quality parameters that have changed over the years. Results show that iodine value, free fatty acid (FFA), conventional mass per volume, titre, unsaponifiable matter, saponification value, fatty acid composition, trace metals content, e.g chromium, nickel and copper, for PFAD used in this study were only slightly different from the values reported in the survey in 1999. More obvious changes were noted for the water and iron (Fe) contents which had decreased over the years. The partial glycerides content was about two times higher than in the 1999 survey, but the quantity was less consistent. Tocopherols and tocotrienols contentswere also two times higher in this study.

Tinjauan telah diadakan pada 1983 dan 1999 ke atas ciri-ciri dan komposisi sulingan asid lemak minyak sawit dari kilang penapis tempatan. Artikel ini bertujuan untuk memantau parameter yang berubah dengan edaran masa. Keputusan menunjukkan nilai iodin, asid lemak bebas, jisim per isi padu biasa, titer, bahan tanpa pensaponinan, nilai pensaponinan, komposisi asid lemak, komposisi logam surihan seperti kromium, nikel dan kuprum untuk sulingan asid lemak dalam kajian ini hanyasedikit berbeza daripada keputusan yang diperoleh pada 1999. Perubahan yang lebih ketara diperhatikan dalam kuantiti air dan besi (Fe) yang telah berkurangan sejak 1999. Kuantiti gliserid separa adalah dua kali ganda lebih tinggi daripada yang dilaporkan dalam tinjauan 1999, tetapi kuantitinya kurang seragam. Kuantiti tokoferol dan tokotrienol juga dua kali ganda dalam tinjauan ini.

Releated

Palm emulsion in water (ew) – cypermerthrin insecticide against the rhinoceros beetle, oryctes rhinoceros in oil palm plantation

The field performance of palm emulsion in water (EW)-cypermethrin against rhinoceros beetles, Oryctes rhinoceros in immature oil palm was studied with respect to its insecticidal activities and phytotoxic effect on young palms. The conventional emulsifiable concentrate (EC)-cypermethrin and another commercial product (gamma-cyhalothrin) were included for comparison. The trial was carried out on one-year-old replants in […]

Determination of arsenic in palm glycerin using a graphite furnace atomic absorption spectrometer

A method for the determination of arsenic in palm glycerin using a graphite furnace atomic absorption spectrometer (AAS) was developed. Samples were dissolved in distilled water and injected directly into the graphite furnace AAS fitted with an arsenic electrode-less discharge lamp. The AAS furnace temperatures were set at 120oC, 800oC and 2400oC for drying, charring […]