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INDONESIA
Journal of Research and Technology
Published by Universitas NU Sidoarjo
ISSN : 24605972     EISSN : 24776165     DOI : -
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering
Journal of Research and Technology published since 2015 contains a collection of a selected articles from the results of research and study of literature which is relevant to industrial , chemical, and environment engineering. Target readers of the Journal of Research and Technology are scientists, academics, and practitioners from various fields of industry.
Arjuna Subject : -
Articles 454 Documents
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VEHICLE ROUTING PROBLEM ON JUICE DISTRIBUTION USING NEAREST NEIGHBOR METHOD Tamyiz, Muchammad; Waluyo Prasetyo
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v4i1.265

Abstract

Product distribution problem becomes an important topic in a company transportation system. PT Amanah Prima Indonesia (API), a company that focuses on national-scalejuice production. With the sum of scattered consumers in Semarang, it is necessary a solution in the products distribution to obtain operational efficiency.The method used is Nearest Neighborh Algorithm. The results obtained are: (a) The total distance traveled by the truck results in a distance savings of 144.20 Km or 40.06%, (b) The time of product distribution can be reduced for 5.15 hours or by 30.31%, (c) The savings of fuel cost resulted Rp.108,150,- or 40.06%, (, d) There is no difference cost for the driver and partner, which is Rp.600,000, and (e) Total savings for product distribution cost obtained of Rp.108,150, - or 12.43%. Keywords: Cost, VRP, Transportation.
OPTIMASI KUALITAS BRIKET BIOMASSA PADI DAN TONGKOL JAGUNG DENGAN VARIASI CAMPURAN SEBAGAI BAHAN BAKAR ALTERNATIF Hamidah, Laily Noer; Rahmayanti, Ardhana
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.274

Abstract

The energy crisis demands the development of an alternative energy that can meet daily needs. The existence of rice straw biomass waste and corn cob are potential to be utilized as bioenergy in the briquettes form. This research was conducted to develop and to test the characteristics of biomass briquettes as alternative fuels. Biomass used in this research is rice straw and corn cob. The making of briquettes is done through carbonation and compaction with 10% starch adhesive. To know the best quality of briquettes, a mixture of rice straw (100%) was used, mixed rice straw:corn cobs (25%:75%, 50%:50%, and 75%:25%), and corn cob (100 %). Test parameters used were ash content, volatile matter content, and calorific value. The results showed that briquettes from corn cobs were the best briquettes from ash content and volatile matter content of 9.52% and 9.7% respectively. While based on calorific value, briquettes with highest heating value was rice straw briquettes which was equal to 3562 Kcal/kg. Keywords: Biomass Briquette, Rice Straw, Corn cob, Ash Content, Volatile Matter, Calorific Value, Bioenergy.
PENGARUH JENIS BAHAN ATAP PADA PROSES DESALINASI EVAPORASI AIR LAUT Novitrie, Nora Amelia; Afiuddin, Ahmad Erlan; Hardiansyah, Rizal
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.275

Abstract

Treatment technology of sea water into freshwater is known as desalination. An effective and economical desalination technique is desalination with evaporation. Thisstudy aims to determine the effect of roofing materials on the amount of freshwater produced. The study was conducted using a miniature evaporative tub that had a rooflike shape. Evaporative tubs dimension was 1m x 1m x 0.02m of laminated wood material. 20 liters of brackish water was pumped into the tub. Water in the tub was then closed using a roof designed like a roof made of fiberglass and polycarbonate. Brackish water was left in contact with the sunlight for 24 hours. As a result of heat transfer from sunlight to evaporation tub, brackish water experienced evaporation. The steam moved upward and was captured by the roof wall then condensated resulting in fresh water. The conclusion obtained was a miniature roof of evaporative desalination using fiberglass material obtained 427 ml of fresh water while using polycarbonate material obtained 136 ml fresh water. Keywords: Roof, Desalination, Evaporation.
PERBANDINGAN METODE KONVENSIONAL EKSTRAKSI PEKTIN DARI KULIT BUAH PISANG DENGAN METODE ULTRASONIK Adhiksana, Arief
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v3i2.276

Abstract

The Banana is the most widely produced fruit in Indonesia with waste of banana peel about 1/3 of the fruit. If the banana peel is not utilized in large quantities it will cause environmental problems and is a waste of resources because the waste can still be utilized. The Banana peel contains a variety of compounds such as pectin 10-21%. Based on its content, banana peels have potential as a source of pectin. Pectin can be utilized in various industries of making jelly, jam, gelling, thickener, stabilizer and emulsifier. The purpose of this study was to find the influence of ultrasonic and mass on pectin yield. This research was conducted by using ultrasonic method extraction using 0.05 N HCl solvent of 400 mL and extraction temperature of 60oC. variation of mass in this research are 5, 10, 20, 30 and 40 grams. The highest yield obtained in ultrasonic method is 20.0008 gram with yield of 25,59%. The conventional method only can reach 18,3%. Keywords: Conventional, Banana peel skin, Ultrasound, Yield of pectin.
EFISIENSI REMOVAL BAKTERI PADA FILTER AIR PAYAU DENGAN MEDIA KARBON AKTIF Rahmayanti, Ardhana; Hamidah, Laily Noer
Journal of Research and Technology Vol. 5 No. 1 (2019): JRT Volume 5 No 1 Jun 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i1.279

Abstract

Seawater intrusion causes groundwater in coastal areas to be brackish, so it requires special processing to remove salt levels in raw water so that the water becomestasteless. In addition to salinity, the presence of bacteria in water can cause disease if consumed without proper processing. Brackish water treatment called desalination can be done by ion exchange using an activated carbon filter. The purpose of this study was to determine the efficiency of the performance of brackish water processing filters in setting aside water quality parameters in the form of: coli bacteria and total bacteria expressed in the Total Plate Count (TPC). The filtration reactor is made using filter media in the form of activated charcoal (20 cm), silica sand (15 cm), zeolite (15 cm), and gravel (10 cm). laying the reactor upright and tilted 45 degrees. The results showed that the reactor filter was effective in reducing Coliform bacteria and total bacteria in raw water up to 100% and 97%, respectively, although it did not meet drinking water quality standards PERMENKES No.492/Menkes/Per/IV/2010. Both reactor variations have performance effectiveness that is not significantly different in processing raw water, but overall reactors with upright variations have better performance. Keywords: Active Carbon Filtration, Coliform, Total Plate Count.
Fitoteknologi Pengolahan Limbah Cair Depo Pemasaran Ikan (DPI) Kabupaten Sidoarjo Menggunakan Eceng Gondok (Eichhornia crassipes) dan Kangkung Air (Ipomoea aquatic) Atik Widiyanti; Lily Oktavia; Ari Setiawan
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.280

Abstract

DPI Kabpaten Sidoarjo produces liquid waste from the fish washing process, which has the potential to pollute the environment. The results of the laboratory test of liquid waste produced by DPI Kabupaten Sidoarjo contains 764 mg/L BOD and 1.440 mg/L COD. DPI Kabupaten Sidoarjo uses phytoremediation methods with water hyacinth (Eichornia crassipes) and water spinach (Ipomoea aquatic). The parameters analysed were BOD5, COD, TSS, and TDS and biodegradability ratio. The reactor used was a 25 L batch reactor and the residence time used was 6 days. The results obtained by water hyacinth plants were able to reduce COD and BOD5 levels better than water spinach, namely 98.60% and 98.70%. Then the results of the TDS parameters of the water hyacinth reactor also got the lowest concentration of 368 ppm. For TSS parameters the best value was obtained from the water spinach reactor with a value of 400 mg/L. The pH parameters of the water hyacinth reactor and water spinach got a value between 6-7. The best biodegradability ratio was obtained from the water hyacinth plant reactor, which was 0.5-0.53.  
Pengaruh Lama Perendaman dan Suhu Larutan Jeruk Nipis Terhadap Kadar Kalsium Oksalat Pada Umbi Porang Wardani, Ratih Kusuma; Djamilah Arifiyana
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.284

Abstract

Degenerative disease is a disease caused by a decrease in the condition of the human body. Degenerative diseases can be prevented with a healthy lifestyle, one of them is consuming foods with high fiber. One of the high-fiber foods that are being developed at this time is the porang tuber. Glucomannan, which is mostly contained in porang tubers, is a polysaccharide that is easily soluble in water and high in fiber. Besides containing glucomannan, porang tubers also contain lots of calcium oxalate which can cause irritation to the tongue and mouth when consuming it. Calcium oxalate levels can be lowered through immersion in acidic solution. Solution that can be used to reduce calcium oxalate levels in porang tubers is lime. Soaking time is one of the factors that affect the reduction of calcium oxalate levels. Porang tubers that have been immersed in 5% lime solution for 60 minutes showed the highest decrease, namely 31.79%. In addition, soaking at high temperatures can decrease calcium oxalate levels in porang tubers also. Porang tubers that have been immersed in a 5% lime solution at 60 ° C, the calcium oxalate level has decreased to 49.58%.
Concentration and Time Exposure Determination of Methanol Extract from Carica papaya Leaves in The Larvicidal Activity Against Aedes aegypti Larvae Sudarwati, Tri Puji Lestari; M. A Hanny Ferry Fernanda
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.288

Abstract

Dengue Haemorrhagic Fever (DHF) is a disease caused by dengue virus which is transmitted through Aedes aegypti mosquito bite. Efforts to control the widespread of the vectors have been made using biological agents and also chemical compound. Chemicals known as a standard protocol have raised concerns about resistance and harmfulness to the environment. Hence, the present study was aimed to explore the larvicidal activity of papaya (Carica papaya) leaf extract against Aedes aegypti larvae in regards to the optimum concentration and time exposure.  Preparation the obtained extract was diluted to make a serial concentration. These solutions were made by pipetting 0.65 mL, 1.25 mL, 2.5 mL, 5.0 mL, and 10.0 mL of extract into 10.0 mL volumetric flasks and dilute with distilled water. The test solution was poured into a glass jar contained 90 mL of distilled water and filled with 20 third instar larvae. Each experiment was replicated four times. The larval mortality was recorded in 24h and calculated as a percentage of total larvae used in the experiment. The table above shows the value of LC50 And LT50 from toxicity assay of papaya leaf extract. According to the LT50 value, it can be seen that the lowest LT50 of 1,006h occurred at the concentration of 11000 ppm. Moreover, calculated LC50 is 4929,344 ppm. Based on these results, papaya leaves have the ability to Aedes aegypti larvaside so that it can help in breaking the chain of development of Aedes aegypti.  
Value Chain Analysis and Supply Chain of Layang Fishing Prigi Fish Auction Trenggalek Regency, East Java Indonesia Indrasari, Lolyka Dewi; Komari, Ana
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.297

Abstract

The objective of this research is to understand value chain analysis and fish supply chain in the fishery field because the process needs so much cost and consuming too much time—many problems deal with many costs, and also much time allocation to get Layang Fish for consumption commodity. The value chain is useful to produce things or service which have main activity elements and support to achieve the goal. In supply chain which is analyzed, it deals with the costs spent to get Layang Fish on the sea. The result obtained from both analyses is to understand activities from Prigi Fishery Bureau and the cost spent on every trip to get fish. In one trip, there is a dividing percentage, namely 60% for the shipowner, for fishers 30% per 5 people, for ship's captain 5% and worker ship5 %. So, the value chain will distribute to consumers consistently.
PROPORSI MANGGA PODANG-PISANG KEPOK DAN KONSENTRASI JERUK NIPIS TERHADAP KARAKTERISTIK FRUIT LEATHER MANGGA Rejeki, Fungki Sri; Anggita, Della; Wedowati, Endang Retno
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.302

Abstract

Fruit leather is a snack made from fruit puree in the form of thin sheets, plastic texture, and does not break when rolled. The raw material used was a podang mango extract. The component of pectin, acid, and sugar affect the fruit leather texture. Addition ofkepok banana puree needed as a source of pectin. Furthermore, the addition of ime juice to reduce pH on mixed puree. Randomized Block Design used with two factors and three replications. The first factor was the proportion of podang mango extract and kepok banana puree (90:10; 80:20; 70:30). The second factor was a concentration of lime juice (0%; 0,4%; 0,8%). The parameters observed were yield, pH, moisture content, crude fiber content, reducing sugar content, aroma, flavor, and texture. The research result showed that the best treatment was 80% podang mango extract, 20% kepok banana puree, and 0.4% lime juice.

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