The Indonesian Green Technology Journal <p>The Indonesian Green Technology Journal (IGTJ) is a bilingual journal (Indonesian, English) that publish recent development and emerging issue in both conceptual and experimental aspects of green and renewable technology (science, engineering, medicine, agriculture, information technology, fisheries, animal husbandry), and its impact in general and industrial communities. This journal is also emphasising the significance of green technology development, implementation, challenge, opportunity, and acceptance in Indonesian perspective. IGTJ is publicly opens for publication of review paper, short communication, and research paper.</p><p><strong>Focus and Scope:</strong></p><ol><li>Green and renewable materials: bio-process, green production, modification, characterisation.</li><li>Green technology: impact, challenge, opportunity, modelling, community acceptance.</li><li><span lang="EN-AU">Green energy: potency, management, efficiency, sustainability, diversification, community acceptance.</span></li><li><span lang="EN-AU">Green design, eco-building, and architectures: space, building, landscape, public facilities.</span></li><li><span lang="EN-AU">Domestic and industrial waste treatments: concept, technology, feasibility, sustainability.</span></li><li><span lang="EN-AU"><span lang="EN-AU">Soil and water technology: process, pollution, management, sustainability, conservation.</span></span></li></ol> Program Pascasarjana Universitas Brawijaya en-US The Indonesian Green Technology Journal <p>Authors who publish with this journal agree to the following terms:</p><p> </p><ol><li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="" target="_new">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li><li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li><li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See <a href="" target="_new">The Effect of Open Access</a>).</li><li>Once submitted, it is corresponding author’s responsibility to confirm and to warrant the name included as author of the work is true (shadow author is unacceptable) and there is no conflict of interest occurred among the authors.</li></ol> Green Warehousing Practices in the Philippines 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. Romer Castillo Kristhel Ann Gonzales Danica Rosales Mary Jane Zaraspe Copyright (c) 2022 The Indonesian Green Technology Journal 2022-06-02 2022-06-02 11 1 Formulation and Physicochemical Properties of Kaffir Lime Oil-in-Water Beverage Emulsions and Antibacterial Test <p align="center"><strong>Abstract</strong><strong> </strong></p><p>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 &gt;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.</p><p> </p><p><strong>Keywords</strong>: emulsified beverage, kaffir lime oil, physicochemical properties, stability, perception</p> Vincentius Johar Windrayan Pambudi Elvina Dhiaul Iftitah Diah Mardiana Copyright (c) 2022 The Indonesian Green Technology Journal 2022-06-02 2022-06-02 11 1 Penerapan Konsep Kurikulum Hijau dan Kimia Hijau dalam Desain Praktikum dan Pengolahan Limbah Laboratorium Kimia <p><em>Desain praktikum yang ramah lingkungan </em><em>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. </em><em>Penelitian ini bertujuan untuk mengevaluasi penerapan konsep kurikulum </em><em>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.</em><em> 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. </em><em>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.</em><em></em></p><p> </p><p><strong><em>Kata kunci: </em></strong><em>kurikulum hijau,<strong> </strong>kimia hijau,<strong> </strong>limbah cair, pengelolaan limbah, praktikum.</em></p> Soerjani Widyastuti Nur Yusrina Sasti Gona Fadhilah Mohammad Misbah Khunur Copyright (c) 2022 The Indonesian Green Technology Journal 2022-06-02 2022-06-02 11 1 Modifikasi Kitosan sebagai Komposit Biopolimer untuk Pemisahan Pb(II) dan Cd(II) secara Simultan pada Sistem Multikomponen <p>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 <em>literature review</em> yang dilakukan dengan cara mengumpulkan sumber data yaitu jurnal ilmiah 10 tahun terakhir yang terkait dengan pemanfaatan kitosan untuk pemisahan analit secara simultan. Berdasarkan <em>literature review </em>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.</p> Layta Dinira Copyright (c) 2022 The Indonesian Green Technology Journal 2022-06-02 2022-06-02 11 1 Design and Development of Soil Nutrients Level Detection System based on Soil Color and pH for Crop Recommendations using Fuzzy Algorithms <p>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%.</p> Novanna Rahma Zani Ali Husein Alasiry Ardik Wijayanto Copyright (c) 2022 The Indonesian Green Technology Journal 2022-06-02 2022-06-02 11 1