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Jurnal Teknologi Pertanian
Published by Universitas Brawijaya
ISSN : 14115131     EISSN : 25282794     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT
Jurnal Teknologi Pertanian diterbitkan oleh Fakultas Teknologi Pertanian Universitas Brawijaya untuk penyebarluasan hasil penelitian yang dilakukan oleh para peneliti dari dalam dan luar Fakultas Teknologi Pertanian Universitas Brawijaya. Jurnal Teknologi Pertanian terbit tiga kali dalam setahun, memuat tulisan hasil penelitian yang termasuk dalam lingkup disiplin ilmu pengetahuan yang terkait dengan Ilmu-ilmu Teknologi Pertanian guna menunjang pengembangan ilmu pengetahuan dan teknologi serta pembangunan nasional.
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Articles 3 Documents
 1 
Search results for , issue " Vol 15, No 2 (2014)" : 3 Documents clear
The Comparison of Paddy Straw Lignin Degradation Pretreatment Process Using Wet Milling and Dry milling in Bioethanol Production Ni’mah, Farisatun; Argo, Bambang Dwi; Lutfi, Musthofa; Maharani, Dewi Maya; Putranto, Angky Wahyu
Jurnal Teknologi Pertanian Vol 15, No 2 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Bioethanol is one alternative to fossil fuel substitutes depleting annually. Bioethanol production using waste material containing cellulose such as rice straw, require special attention in the process of pretreatment to customize the lignocellulose both in terms of structure and size to break up and reduce the content of lignin and hemicellulose. This research has been conducted on the hydrolysis of rice straw using wet milling pretreatment (WMP) and microwave-NaOH method compared to the dry milling pretreatment (DMP) with respect to the content of cellulose, hemicellulose and lignin. The results showed that the hydrolysis using WMP has a lower content of cellulose, hemicellulose and lignin compared to the DMP, since the size of the rice straw affect the mesh lignocellulose content. The larger mesh size of rice straw used, so the lignocellulose content is getting smaller.   Keywords: Bioetanol, Delignifikasi, Pretreatment, Wet Milling, Rice Straw
The Effect Of NaOH Concentration And Microwave Heating Time On Pretreatment Process Toward Lignocellulose Content Of Chlorella vulgaris Siregar, Moh. Risal; Hendrawan, Yusuf; Nugroho, Wahyunanto Agung
Jurnal Teknologi Pertanian Vol 15, No 2 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The scarcity of fossil fuel, cause necessary a renewable energy such as bioenergy with biomass as resources. One of biomass resources which can be used is microalgae Chlorella vulgaris. The aim of this research is to learn the effect of NaOH concentration and microwave heating time toward content of cellulose, lignin and hemicellulose Chlorella vulgaris. 15 grams powder of Chlorella vulgaris is mixing with 150 ml NaOH (0.3M ; 0.5 M ; 0.7 M) and then be heated on microwave PANASONIC model NN-GD371M (f = 2450 MHz ; P = 950 Watt) at low temperature level with time variations that 20 meniutes, 30 minutes, 40 minutes. The result of effectivity indeks analyze, the best treatment on 0,7 M 40 menit. Cellulose content go down from 1.27% to 0.53%, hemicellulose go up from 17.02% to 0.65% and lignin go up from 0.27% to 0.65% or can be said carbohydrat go up from 18.29% to 67.49%. Microstructure analysis with SEM show that structure of molecules changed, destroyed and not compact. Key Words : Chlorella vulgaris, Microwave-NaOH, Pretreatment
The Effect of Gum Arabic Addition to Physicochemical and Sensory Properties of Pineapple (Ananas comosus L. Merr.) and Carrot (Daucus carota) Fruit Leather Prasetyowati, Denanda Andini; Widowati, Esti; Nursiwi, Asri
Jurnal Teknologi Pertanian Vol 15, No 2 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The aimed of this research were to determine the effect of gum arabic addition (0.3, 0.6, and 0.9%) to the physicochemical and sensory properties of pineapple and carrot fruit leather and which concentration can be a recommendation in pineapple and carrot fruit leather. This study used Completely Randomized Design (CRD) with one factor of concentration variation of gum arabic. The results analysis of physicochemical pineapple and carrot fruit leather showed that gum arab addition give significant effect on tensile strength, moisture content, and dietery fiber content, but the addition of gum arabic did not significantly affect on ash content and aw. From the sensory properties, pineapple and carrot fruit leather with gum arabic addition affect the color and texture but didn’t give significant effect on the aroma, flavor and overall. Based on physicochemical and sensory properties the recommended concentration is 0.6% gum arabic in pineapple and carrot fruit leather.Keywords: fruit leather, pineapple and carrot fruit leather, gum arabic

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