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INDONESIA
Surya Octagon Interdisciplinary Journal of Science and Technology
Published by Universitas Surya
ISSN : 24608777     EISSN : 26155192     DOI : -
Core Subject : Economy, Education, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Engineering Social Sciences Other
SOIJST (Surya Octagon Interdisciplinary Journal of Science and Technology) is a bilingual interdisciplinary journal that publishes original research on science and technology in Indonesia. SOIJST is organized by Surya Universisty. Interdisciplinary offerings reflect breakthrough research, as well as new directions of knowledge creation in four scopes: Life Sciences, Engineering, Socioeconomics, and Information & Communication. All of which explore the technology-oriented methods to offer solutions in ways that are inspirational and intellectually engaging. SOIJST was first published in 2015 and 2016. Due to change process of management, in the 2nd dan 3rd year, SOIJST did not released any volume. Starting from 2018, the further publication would be released for the next volumes.
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Articles 6 Documents
 1 
Search results for , issue "Vol 1 No 2 (2016): SOIJST" : 6 Documents clear
Bio-degradeable Bioplastics sebagai Plastik Ramah Lingkungan Wijayanti, Kim Poppy; Dermawan, Nathanael; Faisah, Sabila Nur; Prayogi, Vincent; Judiawan, William; Nugraha, Tutun; Listyorini, Niken Taufiqurrahmi
Surya Octagon Interdisciplinary Journal of Science and Technology Vol 1 No 2 (2016): SOIJST
Publisher : Surya University

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Abstract

Massive uses of conventional plastics have brought negative consequences to the aspects of sustainability and environmental friendliness of human activities, due to the problems concerning the availability of its raw materials and eventual wastes. One of the solutions to face these problems is by producing and using plastics that can degrade and be derived from renewable biomasses which are now known as bio-degradeable bioplastics.  At least, there are 4 kinds of plastics that can fulfill the criteria as being bio-degradeable bioplastics, namely starch-based plastic, cellulose-based plastics, PLA (polylactic acid), and PHA (polyhydroxylalkanoates). These four kinds of plastics have different characteristics, applications, strengths, and also weaknesses. In spite of the many challenges  in the uses of  bio-degradeable bioplastics to replace conventional plastics, newest technological development and the birth of stronger public awareness towards a more sustainable and more environmentaly-friendly life style have given stronger stronger forces to increase the uses and urgency of bio-degradeable bioplastics.
A Review of Nanotechnology Application for Seawater Desalination Process Jordan, Evan; Jessica, Jessica; Martin, Martin; Suryajaya, Tommy; Hakeem, Muhammad Hilmy; Nugraha, Tutun; Listyorini, Niken Taufiqurrahmi
Surya Octagon Interdisciplinary Journal of Science and Technology Vol 1 No 2 (2016): SOIJST
Publisher : Surya University

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Abstract

As freshwater resource decreasing rapidly due to high rate of human population growth, many researchers have done studies to develop methods for producing freshwater supply. Seawater desalination is one of the method that has the credibility to be implemented. However, conventional seawater desalination processes suffer from a number of problems related to energy efficiency and cost. In spite of this, nanotechnology has been applied to the process. In this paper, we give an overview and explanations concerning the roles of nanotechnology in seawater desalination processes which consist of pretreatment, reverse osmosis (RO), and disinfection. In addition, the comparisons between conventional and nanotechnology-applied processes as related to its efficiency and effectiveness are also provided.
Pengumpulan Data Base Sumber Antioksidan Alami Alternatif Berbasis Pangan Lokal di Indonesia Silvia, Deli; Katharina, Kezia; Hartono, Stefanny Agness; Anastasia, Vanessa; Susanto, Yunita
Surya Octagon Interdisciplinary Journal of Science and Technology Vol 1 No 2 (2016): SOIJST
Publisher : Surya University

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Abstract

Nowadays the interest in food with antioxidant content continues to increase, especially the natural antioxidant content found in the local Indonesian food. Therefore, the aim of this research is to explain some kind of natural antioxidant compounds commonly found in food, describe several methods of extraction and food processing, and gathering data about the local food products that could be an alternative natural source of antioxidants. The research method used is literature study by analyzing data based on references and journals that already exist. From this study, the result showed that antioxidant compounds in food products commonly found in the form of Vitamin C, Vitamin E, beta carotene, selenium, superoxide dismutase (SOD), and flavonoid. Some local food that can be an alternative source of antioxidants found in vegetables, fruits, spices, as well as animal products that are easily found around the community. Extraction methods commonly used to identify the antioxidant compounds are solvent extraction and mechanical extraction.
Biodiversitas Semut di Wilayah Gading Serpong, Tangerang Alfonsius, Giovani; Lestari, Lo Bunga; Wijaya, Viorenda Thery; Ivan, Fransiskus Xaverius
Surya Octagon Interdisciplinary Journal of Science and Technology Vol 1 No 2 (2016): SOIJST
Publisher : Surya University

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Nowadays, ants have become a very interesting research subject due to their roles in environments, including as ‘ecosystems engineers’ and predators. Nonetheless, ant research in Indonesia is still rare, and hence it needs to be encouraged. Here we present the results of our investigation on ant biodiversity in Gading Serpong, Tangerang, which was conducted in the early of 2016.The investigation was done by collecting ants from 20 spots, and followed by the identification of ant species based on their morphological characteristics. Overall, we uncovered that there are 26 ant species from 7 subfamilies in Gading Serpong area. The most abundant species wasForelius mccooki, which has been known for their likeness to dry and hot environment. In addition, the Shannon-Wiener index of 2.72 indicates that the ant biodiversity atGading Serpong area isat moderate level, andthus the pollution level in Gading Serpong area is still of moderate impact.
Pemetaan Vegetasi Hutan Mangrove Menggunakan Metode Normalized Difference Vegetation Index (NDVI) di Desa Arakan, Minahasa Selatan, Sulawesi Utara Philiani, Intan; Saputra, Livinia; Harvianto, Loecky; Muzaki, Anggi Afif
Surya Octagon Interdisciplinary Journal of Science and Technology Vol 1 No 2 (2016): SOIJST
Publisher : Surya University

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Tatapaan District in North Minahasa has  mangrove forest covering an area of 8.736.00 m2. One of the village in Tatapaan District is Arakan. This study aim for mapping mangrove density in Arakan village and determine the best result of Normalized Difference Vegetation Index (NDVI) from band combination used. NDVI method calculate the amount of vegetation greeness value derived from digital signal processing of brightness value data of multiple channels satellite sensor data from satellite images. NDVI measures the slope between the original value of the red band and infrared band in the sky with the value of each pixel in the image. Imagery used is Worldview2 satellite image recording on June 19th 2014. Based on the combination of bands used, the best result of band combination is the combination of Red and NIR 2 band with the value of the smallest error rate of deviation, ie 0.3. The density of the widest is “Rapat” class (824,566.01 m2), “Sedang” class (133,622.41 m2), “Jarang” class (12,004.92 m2), “Sangat jarang” class (10,494.23 m2), and the smallest is “Sangat rapat” class (24.45 m2). 
Sistem Hidroponik Nutrient Film TEchnique (NFT) dan Wick pada Penamaan Bayam Merah Sari, Elvita; Kitty, Yelina; Dwiranti, Astari
Surya Octagon Interdisciplinary Journal of Science and Technology Vol 1 No 2 (2016): SOIJST
Publisher : Surya University

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Indonesia terus mengalami peningkatan jumlah penduduk terutama dalam satu dekade terakhir. Hasil proyeksi Badan Pusat Statistik (BPS) menunjukkan bahwa jumlah penduduk Indonesia pada tahun 2020 akan mencapai 271,1 juta jiwa dan akan terus meningkat hingga 15 tahun mendatang (Bappenas et. al., 2013). Seiring dengan meningkatnya jumlah penduduk, permintaan pasar pada sektor pangan juga akan semakin meningkat (Roidah, 2014). Namun, hal tersebut tidak diikuti dengan ketersediaan lahan pertanian yang cukup. Penurunan luas lahan pertanian terutama pada sawah mencapai 0,25% pada tahun 2013 (Pusat Data dan Sistem Informasi Pertanian, 2014). Keadaan ini yang menjadi landasan bahwa teknologi bercocok tanam dengan sistem hidroponik dapat diterapkan dalam masyarakat dan diharapkan dapat meningkatkan produksi bahan pangan terutama komoditas sayur-sayuran

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