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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL AGROINDUSTRI HALAL
Udin Hasanudin
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Social Sciences

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POTENSI BIOGAS DARI PROSES REKAYASA AKLIMATISASI BIOREAKTOR AKIBAT PERUBAHAN SUBSTRAT PADA INDUSTRI BIOETHANOL Julfi Restu Amelia; Udin Hasanudin; Erdi Suroroso
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 8, No 3 (2019): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1268.862 KB) | DOI: 10.23960/jtep-l.v8i3.224-233

Abstract

Produksi etanol (bioetanol) dari bahan baku biomassa merupakan salah satu cara mengurangi polusi lingkungan dan konsumsi terhadap minyak mentah.  Salah satu bahan bakar yang dapat diperbaharui yakni bioethanol yang merupakan produk turunan dari singkong dan tetes tebu dengan menggunakan teknik proses multiple feedstock system. Industri bioethanol tidak hanya memproduksi produk utama berupa etanol, tetapi juga menghasilkan air limbah dalam jumlah besar. Air limbah bioethanol berbahan baku singkong disebut dengan thinslop, sedangkan air limbah bioethanol berbahan baku tetes tebu disebut dengan vinasse. Adanya proses perubahan substrat dari thinslop ke vinasse akan menyebabkan perubahan beban mikroorganisme dalam penguraian bahan organik . Tujuan dari penelitian yakni  untuk mengukur potensi produksi biogas dari proses rekayasa aklimatisasi perubahan substrat. Penelitian menggunakan tiga bioreaktor CSTR dengan kapasitas 50 L. Perlakuan setiap bioreaktor yakni 50% thinslop dan 50% vinasse; 25% thinslop dan 75% Vinasse, dan 100% Vinasse, dengan laju pembebanan berbeda setiap minggu (0,5 g / L hari, 1,0 g / L hari, 1,5 g / L hari, dan 2,0 g / L hari). Hasil penelitian menunjukkan bahwa nilai potensial biogas dari bioreaktor pertama (50% thinslop: 50% vinasse), bioreaktor kedua (25% thinslop: 75% vinasse), dan bioreaktor ketiga (100% vinasse) berturut-turut yakni 39,39 L/hari, 38,97 L/hari 27,23 L/hari. Hasil penelitian juga menunjukkan bahwa kandungan gas metana secara berturut-turut dari bioreaktor pertama, bioreaktor kedua, dan bioreaktor ketiga (100% vinasse) sekitar 32,67-52,81%, 40,29-67,29%, 20,46-57,33%. Kata kunci : bioethanol, singkong, tetes tebu, bireaktor, aklimatisasi
Karakteristik Kimia dan Fisik Beras Terserang Kutu (Sitophylus oryzae. sp): Chemical and physical characteristics of Rice Infested with lice (Sitophyllus oryzae. sp) Rani Juniarti; Samsu Udayana Nurdin; Siti Nurdjanah; Subeki; Udin Hasanudin
JURNAL AGROINDUSTRI HALAL Vol. 8 No. 2 (2022): Jurnal Agroindustri Halal 8(2)
Publisher : Lembaga Riset dan Pengabdian Kepada Masyarakat Universitas Djuanda Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jah.v8i2.6741

Abstract

Rice (Oryza sativa) is susceptible to damage during storage including quantity and quality. Rice during storage for a long time will experience a decrease in quality both chemically and physically. This study was aims to determine the chemical and physical properties of rice attacked by lice (Sitophyllus oryzae sp). The experiment was arranged in a Randomized Completely Block Design (RCBD) with treatments in the form of samples of commercial rice, rice free of lice, rice attacked by lice. and by product of lice-attacted rice. The study consisted of 4 treatments with 6 replications. The data will be statistically tested using the SPSS 25 application. All data are further processed with the Least Significant Difference Test (BNT/LSD) at the 5% level. The chemical properties of rice infested with lice cause an increase in moisture content, lower protein content and total starch content. The physical properties of rice attacked by lice caused a decrease in water absorption, oil absorption and whiteness. The results showed that rice that was attacked by pests with moisture content of 13.23%, crude protein content 4.90%, total starch content 73.82%, water absorption capacity of 2.09 g/g, oil absorption capacity of 1.93 g/g and whiteness of 80.23.
Co-Authors Erdi Suroroso Indra Gumay Febryano Jiho Yoo Julfi Restu Amelia, Julfi Restu Rani Juniarti Samsu Udayana Nurdin Sangdo Kim Sihyun Lee Siti Nurdjanah Subeki Wahyu Hidayat Yogi Sulistio