PERUBAHAN PROFIL ASAM LEMAK CPKO DAN RBDPS SETELAH PROSES FRACTIONATION–DISTILLATION BERDASARKAN ANALISIS GC-FID
DOI:
https://doi.org/10.51544/kimia.v9i2.6859Keywords:
Crude Palm Kernel Oil (CPKO), Refined Bleached Deodorized Palm Stearin (RBDPS), Fatty Acid Profile, Fractionation–Distillation, GC-FID, FAME AnalysisAbstract
Crude Palm Kernel Oil (CPKO) dan Refined Bleached Deodorized Palm Stearin (RBDPS) merupakan fraksi minyak sawit dengan karakteristik komposisi asam lemak yang berbeda dan berpotensi mengalami perubahan distribusi komponen selama proses pemisahan termal. Penelitian ini bertujuan untuk membandingkan perubahan profil asam lemak CPKO dan RBDPS sebelum dan sesudah proses fractionation–distillation. Sampel dianalisis menggunakan Gas Chromatography–Flame Ionization Detector (GC-FID) setelah derivatisasi menjadi fatty acid methyl esters (FAME), dengan parameter yang diamati berupa komposisi relatif asam lemak berdasarkan persentase luas area puncak kromatogram. Hasil menunjukkan bahwa sebelum distilasi CPKO didominasi asam laurat (48,39%), sedangkan RBDPS didominasi asam palmitat (60,90%). Setelah proses fractionation–distillation, komposisi CPKO berubah signifikan dengan dominasi asam oleat (59,83%) dan palmitat (21,20%), sedangkan RBDPS menunjukkan dominasi asam oleat (52,93%) dan palmitat (23,27%). Perubahan ini mengindikasikan bahwa proses distilasi memperkaya fraksi dengan asam lemak rantai panjang akibat perbedaan volatilitas komponen. Penelitian ini memberikan dasar ilmiah mengenai selektivitas pemisahan termal pada fraksi minyak sawit untuk mendukung optimasi proses industri.
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