ABSTRAK
Telah dilakukan penentuan kadar minyak dan kadar air dari Palm Kernel Expeller (PKE) dan Copra Expeller (COPEX) di PT. Palmcoco Laboratories. Penentuan kadar minyak digunakan metode ekstraksi sokletasi selama 4 jam dan penentuan kadar air digunakan metode pemanasan pada suhu 105oC. Didapatkan kadar minyak untuk PKE dan COPEX adalah 7,44 % dan 6,20 %, sedangkan kadar air untuk PKE dan COPEX didapatkan 6,45 % dan 9,07 %.
Untuk menentukan kualitaas dari suatu minyak salah satu parameternya merupakan penentuan kadar asam lemak bebas. Selanjutnya diukur kadar asam lemak bebas dari PKE dan COPEX dengan metode titrasi asam basa. Diperoleh hasil kadar asam lemak untuk PKE dan COPEX adalah 4,23 % dan 7,17 %. Dari penentuan kadar asam lemak bebas didapatkan PKE masih memenuhi syarat Standar Nasional Indonesia (SNI), sedangkan COPEX sudah tidak memenuhi syarat Standar Nasional Indonesia (SNI), dimana syarat kadar asam lemak bebas pada Standar Nasional Indonesia (SNI)nomor 01-2901-2006 adalah 5%.
Kata Kunci: Palm Kernel Expeller, Copra Expeller, Kadar Minyak, Kadar Air, Asam Lemak Bebas
DETERMINATION OF OIL CONTENT AND MOISTURE IN PALM KERNEL EXPELLER (PKE) AND COPRA EXPELLER (COPEX)
ABSTRACT
The determination of oil content and moisture in Palm Kernel Expeller (PKE) and Copra Expeller (COPEX) at Palmcoco Laboratories. Had been done the determination of oil content with soxhlet method for 4 hours and the determination of moisture with heating method at 105oC temperature and gotten result the determination of oil content in PKE and COPEX were 7,44 % and 6,20 %, while the determination of moisture in PKE and COPEX were 6,45 % and 9,07 %.
The determination of oil qualities, one of it’s parameters was the determination free fatty acid. After that, determinied the free fatty acid of PKE and COPEX with based-acid titration method, getting the result of free fatty acid in PKE and COPEX were 4,23 % and 7,17 %. From the determination of free fatty acid was gotten that PKE still fulfilled the specification of Indonesia National Standard (SNI) while COPEX didn`t fulfill specification of Indonesia National Standard (SNI), while the maximum of free fatty acid content of Indonesia National Standard (SNI) number 01-2901-2006 was 5 %.
