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INDONESIA
Indonesian Green Technology Journal
Published by Universitas Brawijaya
ISSN : 23554010     EISSN : 23381787     DOI : https://igtj.ub.ac.id/index.php/igtj/
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Engineering Other
The Indonesian Green Technology Journal (IGTJ) is an international journal that publishes recent developments and emerging issues in both conceptual and experimental aspects of green and renewable technology. The Indonesian Green Technology Journal (IGTJ) publishes research results in the theoretical and experimental aspects of green science, engineering, technology, and medicine. Studies published in this journal include; Biomaterials, Green water management, Green energy development and management, Sustainable waste management, Green biotechnology, Green building and architecture, Clean production technology, Global warming technology, and Green building and architecture. This journal also emphasises the significance of green technology development, implementation, challenge, opportunity, and acceptance from an Indonesian perspective. IGTJ is publicly open for publication of review papers, short communication, and research papers. Since 2024, this journal has become an international journal and uses English for every paper that will be published.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 8, No 1 (2019)" : 5 Documents clear
Evaluation of the Lowland Rice Sustainability Based on the Dimensions of Biological Control in Besur Village, Lamongan District Aminudin Afandhi; Wilda Al Aluf; Budi Prasetya
The Indonesian Green Technology Journal Vol 8, No 1 (2019)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2019.008.01.04

Abstract

The biological control strategy in Besur Village of Lamongan District aims to increase the diversity of macroorganism natural enemies, the application of biological pesticides and to increase the diversity of microorganism biological technology. Excessive application of chemical pesticides inhibits the sustainability of lowland rice. This study aims to evaluate the sustainability of lowland rice based on biological control dimensions using the Multidimensional Scaling (MDS) method. The results of the MDS analysis showed that lowland rice farming is sufficiently sustainable with an diversity of macroorganism natural enemies by 1.96; the application of biological pesticides by 3.99 and the diversity of microorganism biological technology by 2.00. The application of biological pesticides plays a very important role in the sustainability of lowland rice in Besur Village of Lamongan district. It is recommended to improve the introduction of predators, parasitoid and insect pathogens to support the sustainability of lowland rice.Keywords: biological control, Besur, lowland rice, sustainability
Effect of NaOH Concentration and Immersion of Ice Water on Physical and Mechanical Characteristics of Candlenut Seeds (Aleurites moluccana L Willd) Muchammad Zakaria; La Choviya Hawa; Gunomo Djoyowasito
The Indonesian Green Technology Journal Vol 8, No 1 (2019)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2019.008.01.05

Abstract

The breakdown of candlenut seeds from the shell is very important to note due to the increasing consumption needs of candlenut seeds in the market has not been able to be balanced with the quality of the breakdown of good candlenut seeds. The purposed of this research was to identified the physical and mechanical properties of candlenut, analyzed the strength of the candlenut seeds that was in the treatment, analyzed the mass of the candlenut seeds which stick to the shell, analyzed the level of integrity of the candlenut seeds. This research was conducted using factorial randomized block design (RAKF) method with 2 factors. The first factor was the variation of NaOH concentration, while the second factor was the time of immersion ice water. Pressed load testing of candlenut shell used brazillian test, from this research was obtained the result of press load candlenut seeds with variations of NaOH immersion and the immersion time of ice water 10 and 45 minutes on average were 31.28 N and 22.30 N, while the load control was 44.692 N. Mass the seed core that was still sticky to the shell with the treatment given was an average value of 0.114 gr (3.8%) and 0.033 gr (1.2%), while the control is 1,753 gr (63%). The whole candlenut seeds core results with the given treatment were 7 grains (31.8%) and 15 grains (64%), whereas the control did not get the whole candlenut seeds core. The results of research is shows that the parameters of the increase in NaOH concentration does not have a significant effects but when compare with the control of NaOH it is very significant for the breakdown of candlenut, while the time parameters have a very significant effects.Keywords: NaOH, Ice water immersion, The process of breaking candlenut,
Penentuan Area-Area Paling Layak Huni di Kota Banjarmasin Berdasarkan Indikator-Indikator Spasial Miftahul Ridhoni; Muhammad Yusuf Ridhani; Andi Achmad Priyadharma
The Indonesian Green Technology Journal Vol 8, No 1 (2019)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2019.008.01.01

Abstract

Fokus penelitian adalah untuk menentukan area-area dengan tingkat kelayakhunian tertinggi di Kota Banjarmasin, didasarkan pada indikator-indikator fisik yang mengandung nilai spasial. Penelitian ini diharapkan sebagai masukan bagi pemerintah terkait potensi kelayakhunian di Kota Banjarmasin dapat lebih spesifik khususnya pada aspek fisik-spasial, serta meningkatkan keragaman jenis-jenis penelitian mengenai kelayakhunian di Kota Banjarmasin. Metode yang digunakan untuk menentukan parameter kelayakhunianadalah triangulasi, metode yang digunakan untuk menentukan zonasi kelayakhunian tertinggi adalah menggunakan overlay data spasial. Parameter yang digunakan adalah kepadatan penduduk, ketersediaan dan keterjangkauan sarana ruang terbuka hijau, fasilitas umum, sarana perdagangan, serta jaringan jalan. Area kelayakhunian tinggi tersebar di semua kecamatan di Kota Banjarmasin, dengan alokasi terbesar berada di Kecamatan Banjarmasin Tengah.Kata kunci: Area Kelayakhunian, Overlay, Parameter Kelayakhunian. The focus of research is to determine zones with the highest level of livability in Banjarmasin City, based on physical indicators containing spatial values. Research is expected to enrich livability assessment diversity specifically in term of physical livability aspect. The method used to determine livability parameters is triangulation, the spatial overlay is the method used to determine livability zones. The parameters used are population density, availability and radius  of green open space, public facilities, trade facilities, and road networks. High livability zone spread across all subdistrict in Banjarmasin City, with the largest allocation in Central Banjarmasin District.Keywords: Livability Parameter, Livability Zone, Overlay.
Fuzzy Logic in Determining The Control Temperature and Humidity in Plant Factory for Cultivation of Pak choy (Brassica chinensis l.) Hydroponics Choirul Umam; Sandra Malin Sutan; Yusuf Hendrawan
The Indonesian Green Technology Journal Vol 8, No 1 (2019)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2019.008.01.02

Abstract

In cultivation of vegetable plants, plant factory system requires flexible approach and resolution methods with a high degree of accuracy, considering the main requirement quality of plant factory is internal environmental conditions that must be a constant value for a long period, while the value of temperature and humidity environment is fluctuate easily. The purpose of this study is to find out the steps of obtaining fuzzy values and knowing the value of PWM (Pulse Width Modulation) output in the plant factory for a set point temperature of 280C and a set point humidity of 75% using the Tsukamoto fuzzy approach. Fuzzy logic is an approach method and problem solving by modeling linear and non-linear functions, the main advantages of this method are being very flexible, high tolerance and high-value precision as well natural language use in this method, so  it can be understood easily. Pak choy plants (Brassica Chinensis L.) can grow ideally at temperatures of 19-30oC and 75% humidity. The steps of research is, first determine the input and output variables which are firm sets. Second,  fuzzy compositions, are the steps of changing input values to the value of  functions involve. Third, inference fuzzy set of Tsukamoto  with the minimum method. Fourth, defuzzication with re-convert data in fuzzy set to crisp data. The last step is to get the output value of the defuzzification result which  converted to PWM (Pulse Width Modulation) value. The calculation results obtained a PWM (Pulse Width Modulation) value of 760.2450 for the set point temperature of 28oC and humidity of 75% in the plant factory of pak choy’s cultivation.Keywords: Fuzzy Logic, Fuzzy Tsukamoto, High Accuracy, Pak Choy, Plant Factory, PWM.
Analisis Daya Cerna Pakan Alami pada Larva Ikan Koi Nanik Retno Buwono; Mohammad Mahmudi; Siwi Oktafia Sabtaningsih; Evellin Lusiana
The Indonesian Green Technology Journal Vol 8, No 1 (2019)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2019.008.01.03

Abstract

Salah satu faktor yang mempengaruhi rendahnya pertumbuhan dan kelangsungan hidup larva ikan koi adalah ketidaksesuaian jenis  pakan yang diberikan. Ikan koi saat larva memerlukan pemberian pakan yang tepat  yaitu pakan alami karena sistem pencernaannya belum sempurna. Kelebihan dari pakan alami yaitu mempunyai ukuran yang sesuai dengan bukaan mulut larva ikan, memilki kandungan protein tinggi dan mudah dicerna. Penelitian ini dilakukan untuk mengetahui mengetahui pertumbuhan larva pada pembenihan ikan koi dengan pemberian pakan alami planktonik yang berbeda dan mengetahui tingkat kecernaan pakan alami plantonik pada ikan koi.  Pakan planktonik yang digunakan untuk perlakuan pada larva koi yaitu Chlorella sp, Artemia salina dan Daphnia magna. Hasil penelitian menunjukkan  nilai Spesific Growth Rate (SGR) atau laju pertumbuhan spesifik larva ikan koi diperoleh nilai tertinggi pada perlakuan pemberian pakan Daphnia magna dengan nilai sebesar 2,7%/hari. Nilai survival rate (SR) atau kelangsungan hidup tertinggi pada perlakuan pemberian Daphnia magna sebesar  50,67% dan hasil kecernaan pakan yang tertinggi pada perlakuan  pemberian Daphnia magna sebesar  53,55%. Kualitas air pada perlakuan pemberian pakan planktonik untuk ikan koi masih pada kondisi optimal.Kata kunci: kecernaan pakan, ikan koi, pakan alami, plankton

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