Malaysian Journal of Analytical Sciences, Vol 26 No 5 (2022): 1011 - 1022

 

ASSESSMENT ON THE CURRENT QUALITY AND IDENTITY CHARACTERISTICS OF MALAYSIAN PALM SUPEROLEIN

 

(Penilaian Kualiti dan Ciri Identiti Semasa Superolein Sawit Malaysia)

 

Najwa Sulaiman*, Yeoh Chee Beng, Farah Khuwailah Ahmad Bustamam, Elina Hishamuddin

 

Malaysian Palm Oil Board,

6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia

*Corresponding author: najwa.sulaiman@mpob.gov.my

 

 

Received: 19 May 2022; Accepted: 19 July 2022; Published:  30 October 2022

 

 

Abstract

An experimental investigation was conducted to assess the current quality and identity characteristics of palm superolein (PSO) produced in Malaysia. A total of 44 PSO samples were collected from several palm oil refineries and ports in Malaysia and were tested for several important indices for characterization of PSO, i.e., iodine value, fatty acids composition, triacylglycerols composition, refractive index, apparent density, relative density, slip melting point, peroxide value, impurities content, moisture content, free fatty acids content, unsaponifiable matter and saponification value. Generally, the quality of PSO was within the specification listed in Codex CXS 210-1999, with slight variations compared to the previous assessment conducted two decades ago. Most prominent variations were observed for refractive index and apparent density of PSO in which the experimental temperature was changed to 40 °C, and a new set of range values were obtained. The findings from this current quality assessment have provided significant data for the revision of the international food standard, as well as the Malaysian national standard for PSO, to accurately reflect the present quality of PSO for consumer health protection, hence removing any barriers to the international trading of PSO.

 

Keywords: assessment, Malaysia, palm superolein, quality, standard

 

Abstrak

Satu kajian eksperimen telah dijalankan untuk menilai kualiti dan ciri identiti semasa superolein sawit (PSO) yang dihasilkan di Malaysia. Sebanyak 44 sampel PSO yang diperoleh dari beberapa kilang penapisan minyak sawit dan pelabuhan di Malaysia telah diuji untuk beberapa indeks penting bagi pencirian PSO seperti nilai iodin, komposisi asid lemak, komposisi triasilgliserol, indeks biasan, ketumpatan ketara, ketumpatan relatif, takat lebur gelincir, nilai peroksida, bendasing, kelembapan, asid lemak bebas, bahan tak tersaponinan dan nilai penyabunan. Secara amnya, kualiti PSO menepati spesifikasi yang disenaraikan dalam Codex CXS 210-1999, dengan sedikit perbezaan berbanding penilaian yang telah dijalankan dua dekad yang lalu. Perbezaan ketara dilihat pada indeks biasan dan ketumpatan ketara PSO di mana suhu eksperimen telah diubah kepada 40 °C, dan satu nilai julat baru diperoleh. Hasil penemuan daripada penilaian kualiti ini telah menyediakan data yang signifikan bagi semakan semula piawaian makanan antarabangsa, dan juga piawaian kebangsaan Malaysia bagi PSO, bagi memberikan gambaran yang tepat berkenaan kualiti semasa PSO untuk penjagaan kesihatan pengguna, seterusnya menghapuskan sebarang halangan dalam perdagangan antarabangsa PSO.

 

Kata kunci: penilaian, Malaysia, superolein sawit, kualiti, piawai

 

 

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