Mardiyah, 0917011055 (2014) PENGARUH DELIGNIFIKASI TERHADAP PEROLEHAN FURFURAL PADA HIDROLISIS ASAM TANDAN KOSONG SAWIT (TKS). Fakultas Mipa, UNIVERSITAS LAMPUNG.
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Abstract
ABSTRAK Pada penelitian ini dilakukan proses delignifikasi dan hidrolisis serbuk Tandan Kosong Sawit (TKS). Delignifikasi menggunakan sodium hidroksida (NaOH) (1%; 3%; dan 5% (w/v)) yang direndam selama 24 dan 48 jam. Proses hidrolisis menggunakan TKS tanpa delignifikasi dan TKS dengan delignifikasi dengan variasi konsentrasi asam sulfat (H2SO4) (0%; 1%; dan 5% (v/v)), variasi suhu (80, 90, dan 100oC), dan variasi waktu (30, 45, 60, dan 90 menit) untuk mendapatkan perolehan furfural optimum. Identifikasi furfural menggunakan uji warna dengan anilin-asetat, spektrofotometer UV-Vis dan FT-IR serta menggunakan GC-MS. Furfural tertinggi dihasilkan oleh TKS tanpa delignifikasi dan TKS dengan delignifikasi NaOH 3% yang direndam selama 48 jam, pada kondisi hidrolisis optimum dengan konsentrasi H2SO4 5%, suhu 100oC, dan waktu 60 menit, yaitu masing-masing 0,3132 dan 0,4932 (mg/mL) dengan masing-masing perolehan sebesar 20,32% dan 32,42%. Pada uji warna menunjukkan hasil positif dengan terbentuknya warna merah. Panjang gelombang maksimal (λmaks) 273,5 nm pada analisis spektrofotometri UV-Vis, dan vibrasi bilangan panjang gelombang yang sesuai dengan teori dan furfural standart pada analisis spektrofotometri FT-IR serta puncak ion molekul pada m/z 96 yang merupakan berat molekul furfural pada analisis GC-MS. Kata kunci : Tandan Kosong Sawit (TKS), Delignifikasi, Hidrolisis Asam, Furfural. ABSTACT In this research, the process of delignification and hydrolysis of Oil Palm Empty Fruit Bunches (OPEFB) powder was done. Delignification carried out using sodium hydroxide (NaOH) (1%, 3%, and 5% (w/v)) were soaked for 24 and 48 hours. Hydrolysis process using OPEFB without delignification and OPEFB with delignification with various concentration of sulfuric acid (H2SO4) (0%; 1%; and 5% (v/v)), various temperature (80, 90, and 100oC), and various time (30, 45, 60, and 90 minute) to obtain the optimum yield of furfural. Identification furfural using color test with aniline-acetate, spectrophotometer UV-Vis and FT-IR also using GC-MS. The highest furfural produced by OPEFB without delignification and OPEFB with delignification using NaOH 3% were soaked for 48 hours at optimum hydrolysis condition with concetration of H2SO4 5%, temperature 100oC, and for 60 minutes, respectively 0,3132 dan 0,4932 (mg/mL) with respective yield of 20,32% dan 32,42%. The color test showed positive result with the formation of red color. The maximum wavelength of UV-Vis spectrophotometry is (λmaks) 273,5 nm and vibrational number of wavelengths corresponding to the theory and standard furfural in FTIR spectrophotometry and also molecular ion peak at m/z 96 which is the molecular weight of furfural on GC-MS analysis. Keyword : Oil Palm Empty Fruit Bunches (OPEFB), Delignification, Acid Hydrolysis, Furfural.
| Item Type: | Other |
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| Subjects: | A General Works = Karya Karya Umum |
| Divisions: | Fakultas MIPA > Prodi Kimia |
| Depositing User: | A.Md Cahya Anima Putra . |
| Date Deposited: | 11 Dec 2014 04:36 |
| Last Modified: | 11 Dec 2014 04:36 |
| URI: | http://digilib.unila.ac.id/id/eprint/5602 |
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