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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. 11 No. 1 (2022)" : 5 Documents clear
Design and Development of Soil Nutrients Level Detection System based on Soil Color and pH for Crop Recommendations using Fuzzy Algorithms Novanna Rahma Zani; Ali Husein Alasiry; Ardik Wijayanto
The Indonesian Green Technology Journal Vol. 11 No. 1 (2022)
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2022.011.01.05

Abstract

In recent years, modern farmers usually taking a soil sample to the laboratory or using a soil test kit to know soil macronutrients, i.e., nitrogen (N), phosphorus (P), and potassium (K), and pH to determine what kind of crop plant is suitable for their agriculture land. However, these manual methods are costly and time consumed. The characteristic of soil samples also possibly changing by time or contact during transport. This paper presents the design and development of a portable integrated soil macronutrient level and pH detection system that can analyze soil samples quickly. To give crop recommendations, IoT components and cloud-based fuzzy inference systems are used. The fuzzy algorithm decides the crop recommendation from the soil pH and level content of N, P, and K. The user can receive the crop recommendation via the android application. Data is sent from the portable system to the cloud system and vice versa using the internet network with HTTP request protocol. The accuracy test results of system plant decision on agricultural land were compared with the fuzzy logic method have a quite uniform crop output with a small error rate of 1,66%. Keywords: Color sensor, Soil pH sensor, Soil NPK, Fuzzy Logic, Plant recommendation
Green Warehousing Practices in the Philippines Romer Castillo; Kristhel Ann Gonzales; Danica Rosales; Mary Jane Zaraspe
The Indonesian Green Technology Journal Vol. 11 No. 1 (2022)
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2022.011.01.01

Abstract

Green practice is a worldwide policy and everybody is concerned with sustainable development. This study assessed the green warehousing (GWH) practices in the Philippines and its sustainability dimensions. It utilized a quantitative descriptive-survey approach with questionnaire for data collection. The sample consists of 48 warehouses with warehouse managers as respondents. Statistical tests used were frequency and percentage, mean and standard deviation, Kruskal-Wallis H-Test, and Mann-Whitney U-Test. Results showed most of participating warehouses are located in Parañaque, corporate-owned, small enterprises, operating for 15 years or less, with less than 100 employees, and private. Results further revealed that GWH practices on inventory management and operations were almost always practiced while those on facility design, layout, mechanical handling equipment, staff, and warehouse management system (WMS) were often practiced. Environment, social, and economic GWH practices are also often practiced. Top GWH practices are mostly economic and some social while bottom GWH practices are mostly environmental. Significant differences on GWH practices were found on inventory management, staff, WMS, and social dimension when grouped to location; on WMS when grouped to operation years; and on facility design, environment, and social dimension when grouped to nature of service.  These findings may guide warehouse managers in enhancing their GWH practices as they gear towards attaining sustainability in support to the United Nation’s Sustainable Development Goals. Keywords: green practices; sustainable development; sustainable warehousing; warehouse management
Physicochemical Properties and Antibacterial Activity of Kaffir Lime Oil Emulsion Applicable to Baverage Product Vincentius Johar Windrayan Pambudi; Elvina Dhiaul Iftitah; Diah Mardiana
The Indonesian Green Technology Journal Vol. 11 No. 1 (2022)
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2022.011.01.02

Abstract

Essential oil inside beverage emulsion became an interesting subject to get a new value for the fast-moving customer goods (FMCG) market. In this study, kaffir lime oil (KFO) antibacterial test on formulation and physicochemical properties of kaffir lime oil in water beverage emulsions was investigated. The main ingredients of beverage emulsions are water, high fructose corn syrup (HFCS), Arabic gum as an emulsifier, vitamin E, and kaffir lime oil as flavoring and antibacterial. KFO composition used instrument with Stability of oil-in-water emulsion was observed by measuring physicochemical properties: turbidity, alkalinity, and conductivity. GC-MS characterization on kaffir lime essential oils revealed the top three components, i.e., citronella (46,47%), citronellol (12,22%), and citronellyl acetate (6,48%). FT-IR KFO spectrum had absorbance at 1726 (C=O stretching), 2922, and 2874 cm-1 (C-H stretching from aldehyde). Absorbance was also present on 1454 and 1379 cm-1 (C=C stretching) wavelengths, resembling citronella. Gum arabic with R−S(=O)₂−OH  group addition reduced pH value to 1.1 on each composition addition and increased conductivity by 317.3 μS/cm. Fructose addition reduced the value by 153.4 μS/cm. Turbidity value increased averagely by 46,9 NTU, then reduced by 14,4 NTU. Citronellal in KFO could hinder e-coli bacterial growth and had an alt value >72 CFU/mL. This formulation study produces a beverage product with pH, conductivity, and turbidity values following the standard and has criteria under the microbiological contamination limit of BPOM and SNI standards. Keywords: emulsified beverage, kaffir lime oil, physicochemical properties, stability, perception
Modifikasi Kitosan sebagai Komposit Biopolimer untuk Pemisahan Pb(II) dan Cd(II) secara Simultan pada Sistem Multikomponen Layta Dinira
The Indonesian Green Technology Journal Vol. 11 No. 1 (2022)
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2022.011.01.04

Abstract

Biopolimer diketahui jumlahnya melimpah dan memiliki toksisitas rendah. Hal tersebut sesuai dengan kebutuhan adsorben saat ini, yaitu murah, ramah lingkungan, dan efisiensi tinggi. Biopolimer berbasis polisakarida seperti kitosan potensial untuk dijadikan adsorben karena karakteristik fisiko-kimianya masih dapat terus dieksplorasi. Metode yang digunakan dalam penulisan artikel ini adalah literature review yang dilakukan dengan cara mengumpulkan sumber data yaitu jurnal ilmiah 10 tahun terakhir yang terkait dengan pemanfaatan kitosan untuk pemisahan analit secara simultan. Berdasarkan literature review yang telah dilakukan, upaya peningkatan ketahanan dan adsorpsi kitosan dilakukan dengan cara menambahkan nanopartikel, partikel magnetik, bahan alam anorganik, atau material lain. Komposit kitosan yang digunakan untuk pemisahan kation Pb(II) dan Cd(II) secara simultan pada sistem multikomponen menunjukkan ion lain yang berada pada sistem biner, tersier, maupun kuartener menurunkan kapasitas adsorpsi. Adsorpsi pada sistem multikomponen lebih banyak bersifat antagonis dibanding non-interaksi dan sinergi. Selektivitas kitosan termodifikasi untuk ion Pb(II) dan Cd(II) dalam sistem multikomponen bergantung pada penggunaan material untuk modifikasi kitosan dan karakteristik ion logam seperti jari-jari dan elektronegativitas. Oleh sebab jumlah kitosan yang melimpah dan meningkatnya volume limbah cair industri yang mengandung logam berat, kitosan termodifikasi untuk adsorpsi ion logam multikomponen potensial dikembangkan di Indonesia. Kata kunci: kitosan termodifikasi, pemisahan, ion logam, multikomponen, simultan
Penerapan Konsep Kurikulum Hijau dan Kimia Hijau dalam Desain Praktikum dan Pengolahan Limbah Laboratorium Kimia Soerjani Widyastuti; Nur Yusrina; Sasti Gona Fadhilah; Mohammad Misbah Khunur
The Indonesian Green Technology Journal Vol. 11 No. 1 (2022)
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2022.011.01.03

Abstract

Desain praktikum yang ramah lingkungan dan pengolahan limbah laboratorium kimia di perguruan tinggi perlu diperhatikan untuk mengurangi potensi pencemaran di area kampus maupun lingkungan sekitarnya. Hal ini juga media pembelajaran yang baik bagi mahasiswa dalam memadukan konsep kurikulum hijau dan kimia hijau. Penelitian ini bertujuan untuk mengevaluasi penerapan konsep kurikulum hijau dan kimia hijau dalam desain praktikum dan pengolahan limbah laboratorium kimia, dengan sampel yaitu Praktikum Kimia Dasar di Fakultas MIPA Universitas Brawijaya 2019-2020. Penelitian ini terbagi dalam beberapa tahapan, yaitu: (1) desain model praktikum, (2) pelaksanaan dan observasi praktikum, (3) pengolahan limbah praktikum, dan (4) evaluasi dan analisa data. Berdasarkan hasil evaluasi, konsep kurikulum hijau yang dipadukan dengan konsep kimia hijau di Praktikum Kimia Dasar dapat diterapkan dengan memperhatikan capaian pembelajaran. Tingkat capaian pembelajaran yang masih dalam level dasar (dari segi alat dan bahan kimia yang digunakan), kemudahan dalam substitusi bahan kimia, dan banyaknya pilihan jenis percobaan merupakan alasan utama dalam fisibiltas penerapan konsep ini. Penerapan konsep hijau ini juga dapat mengurangi jumlah dan toksisitas limbah laboratorium, mengurangi biaya bahan kimia yang digunakan dalam praktikum serta dalam pengolahan limbah cair di laboratorium. Kata kunci: kurikulum hijau, kimia hijau, limbah cair, pengelolaan limbah, praktikum.

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