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Ainun Rohanah
Program Studi Keteknikan Pertanian Fakultas Pertanian USU Medan
Agriculture, Biological Sciences & Forestry Engineering

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Journal : Jurnal Rekayasa Pangan dan Pertanian

 1 
Testing of Various Types of Plastic Materials in Plastic Waste Processing Device using Coconut Shell Fuel Didy Hikmah Utama; Saipul Bahri Daulay; Ainun Rohanah
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 1 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

The decrease of fossil resources and increase population are very contradictive to energy consume for human life and social economy activity. So, alternative energy is needed which environment friendly by the use of plastic waste as fuel. This research as aimed to compare fuel from plastic (Polyethylene), cosmetic bottle (HDPE) and mineral water bottle (PET) with kerosene. This research was done in Agriculture Engineering Laboratory, and in Physical Chemistry Laboratory of  MIPA and Heat Engine Laboratory Faculty of Engineering in August 2014 until finish using completely randomized non factorial design with plastic (Polyethylene), cosmetic bottle (HDPE) and mineral water bottle (PET). The parameters analysed were yield, value of heat and viscosity. The results, showed that fuel nearly the same with kerosene was P2 (cosmetic bottle) with heat of 10.578,6 kcal/Kg and viscosity of 0,940 cP. Keywords : Plastic waste, Polyethylene, HDPE, PET
The Frying Temperature Test of Snake Fruits in Vacuum Frying (Vacuum Pump Type) Suryadi Suryadi; Ainun Rohanah; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 1 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (201.643 KB)

Abstract

Food processing by cooking needs a special technique to maintain the nutrition of the food. This research was aimed to measure the effective frying temperature in vacuum frying (vacuum pump type). This research was carried out at Agricultural Engineering Laboratory, Faculty of Agriculture USU in March – April 2014 using non factorial randomized block design with five levels, i.e. 75oC, 80oC, 85oC, 90oC, and 95oC. Parameters observed were water content, loss of oil, organoleptic value, and economic analysis. The results showed that frying temperature had highly significant effects on water content, loss of oil, and organoleptic value, but it showed that there was no highly significant effect on taste. Economic analysis showed that investment with this equipment was non - profitable. Keywords: Snake Fruit, Temperature, Chips, and Vacuum Frying.
Grinder Edge Variation Test of Multifucer Coffee Grinder Tarida Lestari Lumbangaol; Ainun Rohanah; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 1 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.366 KB)

Abstract

This research was done to test the effect of grinder edge on the effective capacity of the equipment,  percentage of losses material, and percentage of yield. This research was using non factorial completely randomized design. It was found that the capacity of the equipment,  percentage of losses material, and percentage of yield on two grinder edge are 12,72 kg/hour, 7,00%, dan 93,00% respectively.  On three grinder edge are 16,44 kg/hour, 7,67%, dan 92,33% respectively. On four grinder edge are 16,01 kg/hour, 9,00% dan 91,00% respectively. The results showed  that number of grinder edge had significant effect on the effective capacity, and had no effect on the percentage of losses material, and percentage of yield. Keywords : Grinder edge, grinder, arabica coffeaa
Test Results Of Temperature Variation On Hair Dryer Fishing Equipment (Cabinet Type) Erdi K.L. Tobing; Ainun Rohanah; Saipul Bahri Daulay
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 2 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Drying is an important activity in pickling food presentation, as well as in agriculture product industry. The easiest and cheapest way to do drying is with sun light or sundrying. To overcome the sunlight limitation, a sunlight fish drying was had to guarantee the fish higenity. This research was aimed to test moisture content of pora-pora fish using fish dryer machine (cabinet type) and calculated the organoleptic value of the result.  This research had been conducted at agriculture engineering laboratory, faculty of agriculture USU in December 2014 until March 2015 using pora-pora fish. Parameters observed were moisture content and organoleptic test. The result of this research showed that the best moisture content was 29,17%, the best appearance 7,13 and the smell was 7,0. Keywords: Dryer fish machine (cabinet type), pora-pora fish
Testing Of Variation Tray’s Hole Diameter Of Cassava Dryer Cabinet Type To Quality Drying Results Geri Frandianto Lumbantobing; Ainun Rohanah; Sulastri Panggabean
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 2 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

The dependence of people consume rice is not followed by the increase of rice production. Therefore on, alternative foodstuffs is needed such as cassava which can be processed into gaplek, and cassava flour. This research was done in Agriculture Engineering Laboratory Faculty of Agriculture, and Food Science and Technology Laboratory Faculty of Agriculture in Oktober 2014 until March 2015 using non factorial completely design with tray holes diameter of (D1) 3 mm, (D2) 5 mm, and (D3) 7 mm. The parameters analysed were processing capacity, moisture content, yield, and brightness level. The results, showed that, the best drying cassava is produced by (D2) 5 mm. Keywords : Cassava, Dryer, Tray holes
Test of The Effect of Workload on Performance of Desiccated Coconut Maria Evatri Tampubolon; Lukman Adlin Harahap; Ainun Rohanah
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 2 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.403 KB)

Abstract

Coconut plant is a plant of life, because all its parts can be utilized to meet human needs. One of the utilization is grated coconut that can be used in making bread, biscuits, sweets, taking its milk and coconut flour. This study was aimed to examine the effect of workload on the performance of grated coconut dryer. This research was conducted in May until June 2015 in the Laboratory of Agricultural Engineering, Faculty of Agriculture, University of North Sumatra, Medan, by literature study, testing equipment and parameters observation. Parameters measured were effective capacity, moisture content before and after drying, yield, power and organoleptic tests. The results showed that the workload was significantly affected the effective capacity, water content, yield, power and organoleptic tests of aroma and not significantly affected to the organoleptic test of colour and flavour. Key words: desiccated coconut, dryer, grated, workload.
Co-Authors Didy Hikmah Utama Erdi K.L. Tobing Geri Frandianto Lumbantobing Lukman Adlin Harahap Maria Evatri Tampubolon Saipul Bahri Daulay Sulastri Panggabean Suryadi Suryadi Tarida Lestari Lumbangaol