Malaysian Journal of Analytical Sciences Vol 24 No 6 (2020): 855 - 861

 

 

 

 

A SNAPSHOT ON THE IRON CONTENT IN MALAYSIAN CRUDE PALM OIL

 

(Tinjauan Mengenai Kandungan Ferum dalam Minyak Sawit Mentah Malaysia)

 

Farah Khuwailah Ahmad Bustamam*, Najwa Sulaiman, Yeoh Chee Beng, Nik Sasha Khatrina Khairuddin

 

Malaysian Palm Oil Board,

No.6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia

 

*Corresponding author:  fkhuwailah@mpob.gov.my

 

 

Received: 10 June 2020; Accepted: 16 October 2020; Published:  10 December 2020

 

 

Abstract

This study reported the iron content in crude palm oil (CPO) and selected secondary oils collected at the Malaysian palm oil mills through national surveys that were carried out in 2015, 2016, and 2019. Data from these surveys provided an indicative average iron content in the CPO produced by Malaysian palm oil millers. It was found that the average iron content (11.1 ppm) was higher than the result obtained from the previous national survey. To this finding, this study aimed to investigate the effect of filtration using filter paper on the potential type of iron found in CPO. Analysis of iron was conducted using an inductively coupled plasma - mass spectrometry (ICP-MS) instrument. Another quality parameter that might accelerate the iron content such as free fatty acid was also deliberated. The possible factors that might contribute to the high iron content in CPO and recommendations on the control of iron contamination were also discussed.

 

Keywords:  iron, survey, crude palm oil, quality

 

Abstrak

Kajian ini melaporkan kandungan ferum dalam minyak sawit mentah (MSM) dan beberapa jenis minyak sekunder di kilang sawit Malaysia yang diperolehi daripada kaji selidik di peringkat nasional yang telah dijalankan pada tahun 2015, 2016, dan 2019. Data yang diperolehi daripada kaji selidik ini menunjukkan nilai purata kandungan ferum dalam MSM yang dihasilkan oleh pekilang di Malaysia. Nilai purata kandungan ferum (11.1 ppm) didapati lebih tinggi berbanding hasil kaji selidik yang telah dilaporkan sebelum ini. Analisis kandungan ferum telah dijalankan menggunakan instrumen spektrometri jisim - plasma gandingan aruhan (ICP-MS). Satu kajian awal telah dijalankan bagi meneroka kesan penapisan menggunakan kertas turas kepada jenis ferum yang mungkin terdapat dalam MSM. Parameter kualiti yang mungkin menjadi pemangkin kepada kandungan ferum seperti nilai asid bebas lemak dihuraikan. Faktor-faktor yang berkemungkinan menyumbang kepada kandungan ferum serta cadangan-cadangan bagi mengawal pencemaran ferum ke dalam MSM juga dibincangkan.

 

Kata kunci:  ferum, kaji selidik, minyak sawit mentah, kualiti

 

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