Pengaruh Konsentrasi H2SO4 Pada Proses Hidrolisis Terhadap Kandungan Lignoselulosa dan Gula Pereduksi Alga Coklat (Turbinaria sp.) Sebagai Bahan Bioetanol.

Amri, Saiful (2015) Pengaruh Konsentrasi H2SO4 Pada Proses Hidrolisis Terhadap Kandungan Lignoselulosa dan Gula Pereduksi Alga Coklat (Turbinaria sp.) Sebagai Bahan Bioetanol. Sarjana thesis, Universitas Brawijaya.

Abstract

Turbinaria sp. merupakan golongan makroalga dari kelas phaeophyta (dari bahasa Yunani phaios yang berarti “coklat”) yang disebut juga sebagai kelas Ochrophyta. Turbnaria sp. tersusun atas dinding – dinding sel dengan berbagai macam karbohidrat. Karbohidrat yang terdapat pada dinding – dinding selnya yaitu seperti lignoselulosa (lignin, selulosa dan hemiselulosa).Kandungan lignoselulosa pada alga coklat adalah selulosa sebesar 24,07%, hemiselulosa sabebsar 10,11%, dan lignin sebesar 9,27%%. Lignoselulosa adalah bahan yang menyusun dinding sel tumbuhan. Lignoselulosa merupakan istilah yang digunakan bahan yang mengandung lignin, selulosa dan hemiselulosa. Lignin adalah bagian utama dari dinding sel tanaman yang merupakan polimer terbanyak setelah selulosa. Selulosa adalah salah satu komponen utama dari lignoselulosa yang terdiri dari unit monomer D-glukosa yang terikat pada ikatan 1,4-glikosidik. Hemiselulosa adalah senyawa organik penyusun dinding sel tumbuhan yang berikatan dengan selulosa melalui lignin. Ketiga komponen ini yang nantinya akan dihidrolisis untuk mendapatkan gula pereduksi. Tujuan Penelitian ini adalah Untuk mengetahui pengaruh perbedaan penambahan konsentrasi H2SO4 pada proses hidrolisis terhadap kandungan lignoselulosa dan gula pereduksi alga coklat (Turbinaria sp.) sebagai bahan baku bioetanol. Penelitian ini dilaksanakan di Laboratorium Penanganan Hasil Perikanan dan Laboratorium Biokimia dan Nutrisi Pakan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya, Malang pada bulan Februari – April 2015. Metode yang digunakan dalam penelitian ini adalah metode eksperimen eksploratif. Penelitian ini dirancang menggunakan Rancangan Acak Lenkap (RAL) sederhana yang disusun dengan 1 faktor. Faktor yang digunakan adalah perbedaan konsentrasi yang digunakan dengan 4 perbandingan (1%, 2%, 4% dan 6%). Uji yang dilakukan antara lain uji kadar selulosa, uji kadar hemiselulosa, uji kadar lignin dan uji kadar gula pereduksi. Metode analisa data untuk data parametrik yaitu dengan menggunakan Analisa Sidik Ragam (ANOVA) yang dilanjutkan dengan Uji Beda Nyata Jujur (BNJ). Dari hasil penelitian didapatkan bahwa perbandingan konsentrasi yang digunakan pada proses hidrolisis memberikan pengaruh terhadap kadar lignoseluosa dan gula pereduksi. Hasil optimum yang didapatkan pada konsentrasi 6% dengan presentase hemiselulosa sebesar (9,27 ± 0,432), selulosa sebesar (8,59 ± 0,676) dan lignin (4,13 ± 0,504), serta hasil gula pereduksi yang optimum didapatkan pada konsetrasi 4% degan presentase (5,564 ± 0,035).

Item Type: Thesis (Sarjana)
Identification Number: SKR/FPR/2015/388/051505696
Subjects: 300 Social sciences > 333 Economics of land and energy > 333.9 Other natural resources > 333.91 Water and lands adjoining bodies of water
Divisions: Fakultas Perikanan dan Ilmu Kelautan > Manajemen Sumberdaya Perairan
Depositing User: Budi Wahyono Wahyono
Date Deposited: 25 Aug 2015 13:21
Last Modified: 20 Oct 2021 04:48
URI: http://repository.ub.ac.id/id/eprint/134242
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