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International Journal of Science, Technology and Applications
Published by Alpatih Harapan Semesta
ISSN : -     EISSN : 30249228     DOI : https://doi.org/10.70115
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Engineering Physics
International Journal of Science, Technology and Applications [e-ISSN: 3024-9228] is an Open Access Journal published by the Alpatih Harapan Semesta Foundation. IJSTA is intended to communicate original research and current issues about science (Physics, Biology, Chemistry), technology and its applications. This journal publishes research articles that are comprehensive by inviting reviews from leading experts in their fields. Incoming papers will be peer-reviewed and selected based on high scientific study and ability to make important contributions in the field. International Journal of Science, Technology and Applications. Published by the Alpatih Harapan Semesta Foundation, which is twice a year in June and December
Arjuna Subject : Umum - Umum
Articles 25 Documents
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Eksplorasi Konsep Sains dalam Produksi Roti Kenari: Pendekatan Multidisiplin untuk Memahami Budaya dan Konteks Sains Taher, Tamrin; Ali, Lalu Usman
International Journal of Science, Technology and Applications Vol 2 No 2 (2024): Volume 2 Number 2 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i2.216

Abstract

The process of making walnut bread is a dynamic process where the flour components and other ingredient mixtures undergo physicochemical changes. The aim of this study is to explore scientific concepts both at the preparation, process and product stages in the form of walnut bread. Analysis was also carried out to determine the integration of sin concepts according to Fogarty's view. This study uses descriptive qualitative methods. Data collection techniques through libraries. The results of the analysis show that the process of making walnut bread involves scientific concepts including physics, chemistry and biology. These concepts include colloids, collisions, fermentation, temperature and heat, reaction rates, Maillard reactions and caramelization and spoilage processes in food..
Inovasi Nanoagroteknologi untuk Pertanian Berkelanjutan: Mengintegrasikan Smart Technology dengan Praktik Ramah Lingkungan Hasibuan, Molani Paulina; Agustina Nst, Mutiara; Panda, Florentina Maria; Agustini, Dwi
International Journal of Science, Technology and Applications Vol 2 No 1 (2024): Volume 2 Number 1 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i1.223

Abstract

Global climate change and rapid population growth have created significant challenges to food security. To overcome these challenges, innovative technologies are needed that are capable of increasing agricultural yields in a sustainable manner. This research aims to explore the concept of Nanoagrotechnology as a smart technology that has the potential to increase agricultural productivity and efficiency while maintaining environmental sustainability. Nanoagrotechnology integrates nanotechnology applications in crop production and protection, such as the use of nano-fertilisers, nanopesticides, nanobiosensors, and nano-based technologies for remediation of contaminated soil. This research method uses a literature review approach by analysing various study results related to the application of nanotechnology in the agricultural sector. The results of the analysis show that nanotechnology is able to increase the efficiency of resource use, reduce negative environmental impacts, and produce crops with better quality and quantity. Nanoagrotechnology is thus a potential solution to the challenges of modern agriculture and contributes to global food security.
Green Synthesis Nanopartikel Perak-Gelatin dengan Ekstrak Limbah Kulit Manihot esculenta untuk Aplikasi Surface-Enhanced Raman Scattering (SERS) Aprilia, Septi; Shofiyatun, Siti; Fitriyah, Isnanik Juni; Erlangga, Soni Yunior
International Journal of Science, Technology and Applications Vol 2 No 1 (2024): Volume 2 Number 1 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i1.224

Abstract

This study aims to develop a green synthesis method of silver nanoparticles (AgNPs) by utilising cassava (Manihot esculenta) peel waste extract and gelatin as reducing and stabilising agents for Surface-Enhanced Raman Scattering (SERS) applications. This synthesis technique promotes environmentally friendly principles by using natural materials that are easily available, cost-effective, and reduce the use of hazardous chemicals. The synthesis results show that the silver nanoparticles obtained have high stability and are able to increase the intensity of the Raman signal, allowing the detection of molecules at very low concentrations. Characterisation of AgNPs includes analysis using UV-Vis spectroscopy, TEM, XRD, as well as SERS performance measurements. This research shows that green chemistry-based synthesis methods can produce high-quality nanoparticles with high efficiency, so they have the potential to be widely applied in various chemical sensor applications that require high sensitivity.
Menilai Keanekaragaman Tumbuhan di Vegetasi Lantai Bawah Danau Laguna: Implikasi untuk Konservasi Keanekaragaman Hayati di Ternate Natan, Sutriadin; Tabaika, Rosita; Umagap, Wirda AZ
International Journal of Science, Technology and Applications Vol 2 No 1 (2024): Volume 2 Number 1 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i1.225

Abstract

The forest floor vegetation is a layer of plants that grow near the soil surface and generally consists of shrubs, low bushes, herbs, and grasses. Erosion is the process of detaching soil particles from their original location, followed by the transportation of these materials by water or wind until they are deposited in another location. This study aims to analyze the diversity of floor vegetation types around Laguna Lake, Ngade Village, and to explain their role in reducing surface erosion. The research was conducted using a descriptive qualitative method with direct field observation. The research results show a variation in the types of ground vegetation in the three observation plots, where plot 1 contained 6 types, plot 2 consisted of 5 types, and plot 3 consisted of 5 types. Dominance analysis shows that there are no dominant types of vegetation in the three plots. This indicates that all types of vegetation work together to reduce surface erosion rates. The ground vegetation plays an important role in maintaining soil stability around Laguna Lake.
Variabilitas Spasial Makrozoobenthos di Zona Pesisir Tropis: Studi Kasus dari Pantai Kastela, Ternate, Indonesia Syukur, Rinaldo; Juniartin, Juniartin; Muna, Lintal
International Journal of Science, Technology and Applications Vol 2 No 1 (2024): Volume 2 Number 1 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i1.226

Abstract

Kastela Beach, located in Kastela Village, Ternate Island District, Ternate City, North Maluku, has main characteristics such as stretches of fine alluvial sand and an ecosystem of seagrass beds and coral reefs extending over 2 km. This research aims to identify the types of macrozoobenthos, study their distribution and abundance, and analyze the factors affecting them along the coast of Kastela Beach. The research was conducted using qualitative methods with an observational approach and quadrat analysis. The data analysis technique used the species abundance index according to the Ludwig and Reynold formulation. The research results revealed the presence of six macrozoobenthic species evenly distributed across five plots: Holothuria atra (21 individuals), Diadema setosum (30 individuals), Tridacna gigas (9 individuals), Conus marmoreus (11 individuals), Strombus sp (22 individuals), and Pinctada margaritifera (5 individuals). Factors of physicochemical environment, such as brightness, water temperature, salinity, and local community activities, were found to play an important role in influencing the abundance of macrozoobenthos.
Keanekaragaman Jenis Mangrove Di Pesisir Pantai Kelurahan Dowora Kecamatan Tidore Timur Kota Tidore Kepulauan Sebagai Bahan Ajar Poster Abdullah, Nurdianti Hi; Juniartin, Juniartin; Muna, Lintal
International Journal of Science, Technology and Applications Vol 1 No 2 (2023): Volume 1 Number 2 Tahun 2023
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v1i2.227

Abstract

Mangrove forests are tropical ecosystems with significant ecological, social, and economic benefits. This ecosystem has unique characteristics due to the complex interactions between its constituent components. This research aims to: (1) analyze the diversity of mangrove species on the coastal shores of Dowora Village, Tidore Islands City as poster-based teaching materials in the subject of biodiversity; (2) identify the types of mangroves present in the area; and (3) evaluate the feasibility of the poster teaching materials based on the research results. The method used is Research and Development (R&D) with the Borg & Gall approach and the quadrant or plot method for data collection. The research results show that there are four types of mangroves in the area, namely Rhizophora apiculata, Bruguiera gymnorhiza, Sonneratia alba, and Ceriops tagal, with different diversity indices. The highest diversity index was obtained by Rhizophora apiculata (5.064), while Sonneratia alba and Bruguiera gymnorhiza had indices of 1.456 and 1.396, respectively, and Ceriops tagal had an index of 1.268. The validation of the poster teaching materials by content experts reached a validity level of 75% (fairly valid), while the validation by media experts reached 98% (very valid). These results indicate that the poster teaching materials are suitable for use as a learning medium for biodiversity based on the mangrove ecosystem.
Potensi, Peluang, dan Risiko Teknologi Nano dalam Kosmetik: Inovasi, Efektivitas, dan Tantangan Keamanan Faizah
International Journal of Science, Technology and Applications Vol 1 No 2 (2023): Volume 1 Number 2 Tahun 2023
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v1i2.231

Abstract

Nanotechnology in the field of cosmetics has experienced rapid development over the past four decades in developed countries, while in Indonesia, it is still in the development stage through various research and innovations. This technology offers many advantages, such as improving the performance and efficiency of cosmetic products. Nano-sized particles with a large surface area enable more effective transportation of active ingredients to the skin, enhance the efficacy of sunscreens for deeper penetration, and improve skin hydration. However, the use of nano-technology-based cosmetics also poses potential risks, including increased toxicity, inhalation risk through spray products, penetration into blood vessels, and other health impacts. This research uses the literature review method by analyzing various primary and secondary sources, including scientific journals, research reports, and regulations related to nanotechnology in cosmetics. The analysis was conducted to identify the benefits, potential risks, and the need for safety regulations in the use of nanotechnology in the field of cosmetics. The research results emphasize the importance of clear and strict regulations from the Food and Drug Administration (BPOM) regarding the safety limits of nano materials in cosmetics. This regulation provides guidance to cosmetic industry players and the public in understanding the safety standards of nano-based products, thereby supporting the development of safe and effective cosmetics in Indonesia.
Teknologi Nano Dari Bahan Alam Sebagai Prospek Penerapan Konstruksi Berkelanjutan Lubis, Nur Azizah; Putri, Mentari Darma
International Journal of Science, Technology and Applications Vol 2 No 2 (2024): Volume 2 Number 2 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i2.232

Abstract

This research explores the benefits of nanotechnology in the construction sector to improve energy efficiency, reduce environmental impact, and create environmentally friendly materials that can be recycled. Using the literature review method, this research analyzes various study results and secondary data related to the application of nanotechnology in construction materials and the utilization of natural materials as additives. The study shows that the application of nanotechnology in concrete can improve its quality, such as accelerating the curing time, reducing cracking and shrinkage, and lowering environmental impact. In addition, natural materials such as nanocellulose, rice husk ash, and coconut fibers have proven to have great potential in strengthening construction materials. Rice husk ash, with its high silica content, is effective as a substitute for conventional silica, enhancing concrete durability and reducing cracking. Meanwhile, coconut fibers provide advantages in tensile strength, flexibility, and earthquake resistance, making them suitable for use in tropical regions. This research underscores the important role of nanotechnology and natural materials in supporting sustainable construction.
Penerapan Media Bioflok Dalam Budidaya Ikan Lele Dumbo Dan Ikan Gurame Di Desa Kejuden Kecamatan Depok Kabupaten Cirebon Nurlaeli, Nurlaeli; Ekawati, Nurul; Novianti, Teni
International Journal of Science, Technology and Applications Vol 2 No 2 (2024): Volume 2 Number 2 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i2.233

Abstract

Fish farming is an effort to utilize the resources around to achieve a common goal in a group, This activity is carried out in order to produce fish in a controlled and profit-oriented container or media. It is hoped that the products produced will be multiplied and abundant. After field observations in Kejuden Village, there is some information that the problems faced by fish farmers due to limited resources such as land and water are the main obstacles in dumbo catfish cultivation and carp farming, especially in areas with high population density such as Kejuden Village.  One of them is the use of biofloc media. In this study, the researcher used a case study research method. is a research procedure that produces descriptive data obtained from informants in the field, The data collection techniques used are interviews, and observations. Based on the results of research in the field, biofloc fish cultivation techniques have been applied such as feeding, probiotic administration and fish pond maintenance, but there are several techniques that are not applied such as water quality measurement, temperature, fish growth monitoring and weight monitoring per fish. Based on the results of the study, the researcher concluded that there are several stages in the cultivation process, namely the preparation stage, both land preparation, broodstock, spawning, and other facilities that support the catfish cultivation process. The land preparation in question is the preparation of a pond for catfish cultivation. There are various types of mini kola such as earthen ponds, tarpaulin ponds, and cast ponds, or even by using other media that have currently been developed so that the process of cultivating catfish using biofloc requires a lot of great preparation.
Pengembangan Kertas Indikator pH Ramah Lingkungan yang Berasal dari Ekstrak Bunga Telang (Clitoria ternatea) Ariwidiani, Ni Nyoman; Anulus, Ayu; Metriani, Putu Desy
International Journal of Science, Technology and Applications Vol 2 No 2 (2024): Volume 2 Number 2 Tahun 2024
Publisher : Alpatih Harapan Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70115/ijsta.v2i2.234

Abstract

Acid-base indicator paper is a type of paper that changes color when exposed to an acid or base solution, used to distinguish the properties of a substance as either acidic or basic. Several studies have been conducted to find alternative plants that can be used as acid-base indicators.One of them is the butterfly pea flower. The need for practical and economical indicator testing tools prompted researchers to test indicator paper that is cheaper compared to litmus paper. The paper tested comes from commonly found paper in the surroundings, namely HVS paper, BC paper, and Whatman paper. Research objective: Creating Kerinlang, an innovative alternative paper for acid-base indicators using the Telang flower (Clitoria Ternatea). Research method: Maceration of Butterfly Pea Flower is carried out with a 70% ethanol solution to produce an extract from the butterfly pea flower (Clitoria ternatea). The ethanol extract of butterfly pea flower (Clitoria ternatea) was soaked using HVS paper, BC paper, and Whatman paper, then tested with acid-base test solutions to observe the resulting color changes as well as the structure and durability of the tested paper. Conclusion: Kerinlang can be used as an alternative pH indicator paper for butterfly pea flower (Clitoria ternatea) with Whatman paper as the medium, which produces the best color change, is durable, and inexpensive.

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