Ekstraksi minyak dan nutrisi dari ampas kelapa sawit dengan karbondioksida superkritis

Wisnudianto, Dimas and Safrianda, Ragasatya (2015) Ekstraksi minyak dan nutrisi dari ampas kelapa sawit dengan karbondioksida superkritis. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk mengekstrak minyak dan nutrisi (β-karoten dan α-tokoferol) dari ampas kelapa sawit dengan karbondioksida superkritis, menghitung yield minyak yang terekstrak serta kelarutan minyak dalam CO2 superkritis, dan mengamati pengaruh kondisi operasi ekstraksi ampas kelapa sawit menggunakan CO2 superkritis terhadap yield ekstrak, kandungan β-karoten dan α-tokoferol. Ekstraksi dilakukan dengan kondisi operasi yang bervariasi yaitu tekanan 20 ; 30 ; 40 MPa, temperatur 40 ; 60 ; 80 oC, dan flow rate CO2 3 ; 3,5 ; 4 ml/menit dengan waktu ekstraksi selama enam jam. Untuk mengetahui kandungan β-karoten dan α-tokoferol, ekstrak yang didapat dianalisa menggunakan Spektrofotometer UV – Vis dan High Performance Liquid Chromatograph. Hasil penelitian menunjukkan bahwa yield minyak, β-karoten, dan α-tokoferol cenderung meningkat seiring dengan kenaikan tekanan dan temperatur operasi. Sedangkan kenaikan flow rate CO2 tidak memberikan pengaruh yang signifikan terhadap yield minyak, β- karoten dan α-tokoferol. Yield minyak yang dapat terekstrak sekitar 0,026 – 0,064 gr/gr sampel. Untuk solubilitas minyak dalam CO2 superkritis sekitar 0,001 – 0,023 g/L CO2 yang dikorelasikan dengan persamaan Chrastil dan diperoleh konstanta Chrastil k, a, dan b yaitu sebesar 10,62; -6101,28; -57,52. ============================================================================================================ The aim of this research was to extract of oil and nutrients (β-carotene dan α-tocopherol) from palm-pressed fiber with supercritical carbon dioxide, to calculate yield of the extract and oil solubility in supercritical CO2, and to observe the effect of operating conditions to the extraction of palm-pressed fiber with supercritical CO2 towards yield of extract, the content of β- carotene dan α-tocopherol. The extraction were carried out by various operating conditions. The pressure are ; 30 ; 40 Mpa, the temperature are 40 ; 60 ; 80 oC, and flow rate of CO2 are 3 ; 3,5 ; 4 ml/minute. The extraction was taken for six hours. Spectrofotometer UV – Vis and High Performance Liquid Chromatograph was used to determine the content of β-carotene dan α-tocopherol. The result showed that the yield of oil, β- carotene, and α-tocopherol tends to increase in accordance with increasing operating pressure and temperature. While the increase in the flow rate of CO2 does not have a significant effect on the yield of oil, β-carotene, and α-tocopherol. The yield of oil which can be extracted approximately 0,026 to 0,064 gr/gr sample. For the solubility of oil in supercritical CO2 approximately 0,001 to 0,023 g/L CO2 and obtained chrastil constant k, a, and b is 10,62; -6101,28; -57,52.

Item Type: Thesis (Undergraduate)
Additional Information: RSK 660.284 2 Wis e
Uncontrolled Keywords: Ekstraksi, Karbondioksida, Superkritis, α-Tokoferol, β-Karoten
Subjects: T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions.
Divisions: Faculty of Industrial Technology > Chemical Engineering > (S1) Undergraduate Theses
Depositing User: - Taufiq Rahmanu
Date Deposited: 12 Apr 2019 03:29
Last Modified: 12 Apr 2019 03:29
URI: http://repository.its.ac.id/id/eprint/62745

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