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Yana Aditia Gerhana
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ISTEK
Published by Universitas Islam Negeri Sunan Gunung Djati Bandung
ISSN : 19798911     EISSN : 30895081     DOI : https://doi.org/10.15575/istek.v13i2
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering
ISTEK is a scientific journal that publishes research findings and theoretical studies focusing on the interaction between science, technology, and Islamic values. The journal aims to provide a platform for academics, researchers, and practitioners to share their discoveries and innovations that support the development of science and technology from an Islamic perspective.
Arjuna Subject : Umum - Umum
Articles 17 Documents
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Analytical Solutions of Single Dose Drug Models with Injection Administration: Literature Review Frizki Putra Dilalah; Diny Zulkarnaen
ISTEK Vol. 13 No. 1 (2024): Juni 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i1.929

Abstract

This literature review aims to explore the development the Single Dose Injection Models by finding their Analytical Solutions. The most very known single-compartment pharmacokinetic model with first-order elimination was developed by Tang & Xiao in 2007, where the elimination part is modified by the Michaelis-Menten kinetics. Years later, in 2015 Wu, Li, & Nekka developed the model by considering simultaneous elimination and drug distribution in the body, then they modified the more complex model through incorporating the endogenous production in 2018. These three models employ differential equations to depict changes in drug concentration, and not only utilize the Lambert W function, the models also introduce the X function to obtain the analytical solutions. The results are expected to provide a deeper understanding of drug dynamics in the body and to serve as a basis for further research and clinical applications in pharmacokinetics as well as to offer the deeper insights into drug delivery within the human body.
Implementation of Rule-Base and Internet Methods of Things Optimizing Water Mangement For Improving Seed Quality Yana Aditia Gerhana; Deden Suparman
ISTEK Vol. 13 No. 1 (2024): Juni 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i1.930

Abstract

System hydroponics Nutrients Film Technique (NFT) is one of the increasingly popular plant cultivation techniques used because it can increase the efficiency of water and nutrient use as well as crop yields. The NFT Hydroponic System has problems that are often faced in the form of control that must be optimal for important parameters like pH, temperature water, And concentration nutrition, so that can influence plant health and growth and need a good environment controlled To avoid decline quality plant or withering plant. Study This design uses Arduino Uno as a center control system monitoring hydroponics NFTs Which in add sensors pH For read value from pH water, sensors TDS used For read density nutrition, sensors temperature DS18B20 used For read temperature water Because own waterproff and water sensor features flow to read the amount of water flow. Data is read by the sensor and Then sent to Firebase through module NodeMCU which has been connected to the Arduino Uno then from Firebase it is created output form information to the user through the application mobile. Results testing done with the use 3 media Which were different as much 60 time experienced 58 successes and 2 failures resulted in a score accuracy of 96.6% of the total testing.
Nutritional And Antioxidant Analysis Of Cookies Made From Sorghum Flour Lathifa Nur Aisha; Nunung Kurniasih
ISTEK Vol. 13 No. 1 (2024): Juni 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i1.931

Abstract

One type of snack that is highly favored by the public is desert. Replacing wheat flour with food that can be produced in Indonesia, such as sorghum, can reduce wheat imports. It is expected that sorghum flour will increase the benefits and nutritional value of cookie products. Wheat flour is one of the main ingredients for making cookies. Sorghum has almost the same nutritional content as wheat flour, therefore sorghum can be used as a substitute for wheat flour in food raw materials. The purpose of this study was to determine the nutritional content and antioxidants found in cookies made from sorghum flour. Carbohydrate, protein, and fat values as well as antioxidant activity values for the replaced sorghum flour cookies were measured by gravimetric and titrimetric methods. The results met the standards of SNI No.2973-2011 for carbohydrate, fat, and protein tests.
Analysis of Community Structure of Plankton as Bioindikator of Water Quality in Cikapundung River, West Java Fauzi Ahmad Ghiffary Nugraha; Ita Fitriyah; Ateng Supriyatna; Rahmat Taufik MA
ISTEK Vol. 13 No. 1 (2024): Juni 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i1.932

Abstract

The Cikapundung River is a sub-river of the Citarum River that is heavily polluted with waste. The presence of waste in the Cikapundung River can cause various environmental problems. Research on plankton community structure analysis needs to be conducted in the Cikapundung River to determine community structure, its relationship with physical and chemical parameters, and water quality conditions. This research was conducted in May-June 2023 using a purposive sampling method at 3 stations with different characteristics. Sampling was done 3 times in each station with an interval of 1 week. The parameters of COD, BOD, Nitrate, and Phosphate were tested at the sampling location and LPKL PDAM. Plankton sampling was done by filtering 6L of water into a plankton net and preserved using 70% alcohol. Plankton identification was carried out at the Integrated Laboratory of UIN Sunan Gunung Djati based on morphological characteristics under a microscope observation. Data on physical and chemical parameters obtained were analyzed using IBM SPSS software version 25.0.0. Then continued with the Spearmann correlation test between physical and chemical parameters and plankton communities. The results showed that there were 46 genus of plankton in Cikapundung River.The highest diversity and evenness values were found at station 3 with mean values of 1.847 and 0.618. The highest dominance value is found at station 1 with a mean value of 0.381. The mean values of the probity index SI and TSI in Cikapundung River are 0.419 and 0.425. There is no real correlation between physical and chemical parameters in the plankton community. The probity index indicates that the Cikapundung River belongs to the β/α mesosaprobic water group with a moderate level of pollution.
Tempe Made from Green Beans (Vigna radiata L.) and Red Beans (Phaseolus vulgaris L.) as Functional Food Dhaffi Muhammad Hisyam; Nunung Kurniasih
ISTEK Vol. 13 No. 1 (2024): Juni 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i1.968

Abstract

Tempeh is a traditional Indonesian fermented food that is rich in protein and has various health benefits. This study aims to compare the nutritional content, bioactive compounds, and antioxidant activity in tempeh made from green beans (Vigna radiata L.) and red beans (Phaseolus vulgaris L.) as functional food. Tempeh is made by fermenting green beans and red beans using Rhizopus oligosporus inoculum. The levels of proteins, fats, carbohydrates, isoflavones, antioxidant activity and water were determined. The content of bioactive compounds such as isoflavones, total phenolic, and flavonoids was measured using the HPLC method. Antioxidant activity was measured by the DPPH method. The results showed that green bean tempeh has higher levels of antioxidants and carbohydrates compared to red bean tempeh. Red bean tempeh has higher levels of fat, protein, isoflavones and water. The content of isoflavones in green bean tempeh is much lower than that of red bean tempeh. The antioxidant activity of green bean tempeh is much higher than that of red bean tempeh.
Comparison of Antioxidant and Compound Content of Herbal Tea as A Functional Drink for Patients With Type 2 Diabetes Mellitus Rahmawati Nuraeni; Nunung Kurniasih
ISTEK Vol. 13 No. 1 (2024): Juni 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i1.969

Abstract

Type 2 diabetes mellitus is a metabolic condition characterized by high levels of glucose in the blood. People with Diabetes Mellitus need to regulate blood glucose levels by following a strict medical diet, especially in terms of sugar intake. Herbal plants contain antioxidant compounds that can reduce blood glucose levels. This study generally aims to compare the antioxidant power value and compound content of various types of herbal tea. The method used is a literature study using sources through Science Direct and Google Scholar. The results of the review show that plants that can be used as antioxidants and herbal teas that are useful in preventing type 2 diabetes mellitus from various plants that are used as comparison materials can have potential as antioxidants due to the presence of several secondary metabolite compounds such as flavonoids, tannins, saponins, and alkaloids. 50 Of the plants obtained, those that contain antioxidant activity with the strongest category are soursop leaves (Annona Muricata L.) with an IC value of 9.846 ppm. 50 The antioxidant activity with the weakest category is Ciplukan (Physalis angulata) leaves with an IC value of 812.96 ppm. For a little water content of 1.425% in soursop leaves, which indicates that soursop leaf herbal tea is better consumed by patients with type 2 diabetes mellitus, it has the potential to be used as an alternative functional drink.
Rekayasa Rekayasa Genetika terhadap Pengendalian Vektor Nyamuk Demam Berdarah: Dalam Perspektif Bioetika Fikri Iqlilah Gunawan; Fadhilla Rahma Irawan; Hilda Wulan Cahyani; Intan Azzahra
ISTEK Vol. 13 No. 2 (2024): Desember 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i2.1117

Abstract

Demam Berdarah Dengue (DBD) merupakan penyakit infeksi virus yang ditularkan oleh nyamuk Aedes aegypti dan Aedes albopictus, yang menjadi masalah kesehatan utama di wilayah tropis dan subtropis, termasuk Indonesia. Upaya pengendalian konvensional, seperti penggunaan insektisida, menghadapi tantangan resistensi nyamuk dan dampak negatif terhadap lingkungan. Oleh karena itu, pendekatan inovatif seperti rekayasa genetika pada nyamuk mulai dikembangkan. Teknologi ini mencakup metode seperti Teknik Pejantan Mandul (Sterile Insect Technique, SIT), penyebaran serangga dengan gen dominan mematikan (RIDL), dan penggunaan gen penyandi berbasis CRISPR-Cas9. Penelitian ini menggunakan metode studi literatur untuk mengkaji potensi rekayasa genetika dalam pengendalian vektor DBD, serta isu bioetika yang menyertainya. Hasil kajian menunjukkan bahwa rekayasa genetika menawarkan solusi efektif dalam menekan populasi nyamuk dan mengurangi penyebaran DBD. Namun, tantangan operasional, kebutuhan infrastruktur, dan biaya tinggi menjadi hambatan di negara endemik. Selain itu, isu bioetika seperti dampak ekosistem, keadilan sosial, dan keterlibatan masyarakat dalam pengambilan keputusan juga perlu diperhatikan. Oleh karena itu, meskipun menjanjikan, penerapan rekayasa genetika dalam pengendalian nyamuk harus dilakukan dengan pertimbangan yang matang terhadap aspek etis dan social.
Potential of Peanut and Pumpkin-Based Biscuits for Dietary Management in Diabetes Mellitus Patients Fadia Fadia Imanda Nurhaliza; Nunung Kurniasih
ISTEK Vol. 13 No. 2 (2024): Desember 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i2.1245

Abstract

People with type 2 diabetes mellitus often face challenges in achieving an adequate balanced diet that fulfills their nutritional needs. Pecans (Carya illinoinensis) are known to be rich in dietary fiber, protein, and healthy fats, and are a rich source of antioxidant polyphenols. Consumption of pecan nuts can help control blood sugar levels by lowering lipid levels and oxidative stress to improve insulin sensitivity in patients with type 2 diabetes mellitus. Therefore, this study aims to explore the potential of pecan nut biscuits as an alternative food that can help increase nutritional value and improve dietary management in patients with type 2 diabetes mellitus. The research methods used included biscuit recipe development, analysis of SNI No. 3571:2009, in vivo test of pecan nuts in male wistars, and nutritional analysis of raw materials. Pecan nut biscuits contain 35.0% carbohydrate, 12.7% protein and 33.1% lipid. Pecan nut biscuits are the most bioactive diet biscuits for patients with type 2 diabetes mellitus.
Comparison of Acidity, Reducing Sugars, Vitamin C, and Antioxidants of Several Types of Kombucha Tea: Review Mutiara Sani Gunawan; Nunung Kurniasih
ISTEK Vol. 13 No. 2 (2024): Desember 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i2.1246

Abstract

Kombucha tea is a beverage produced from sweet tea using symbiotic bacteria and yeast. This study aims to investigate and compare the pH, carbohydrate reduction, vitamin C content, and antioxidant content of different varieties of kombucha, analysing the effect of fermentation time on chemical characteristics which include organoleptic tests (pH value, vitamin C content and reducing sugar) and antioxidant tests. Literature study on existing research is about the pH contained, antioxidant activity, vitamin C, and reducing sugar in several types of kombucha tea. It is expected that the results of this research will provide significant benefits in the food, health and other sectors with the potential to be a good option for individuals who want to consume high nutritional drinks and have antioxidant activity, as well as provide a pleasant taste experience. The research is expected to help fulfil people's nutritional needs and support the strength of the immune system.
Implementation of Convolutional Neural Network CNN Algorithm to Detect Coffe Fruit Maturity Yana Aditia Gerhana; Rafi Rai Heryanto; Undang Syaripudin; Deden Suparman
ISTEK Vol. 13 No. 2 (2024): Desember 2024
Publisher : Fakultas Sains dan Teknologi UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/istek.v13i2.1247

Abstract

Fruit ripeness detection is important in the agriculture and food processing industries to ensure optimal product quality. Proper fruit ripeness can affect flavour, texture and nutrition, making it a key focus in production process monitoring and control. The fruit ripeness detection process still needs to be done manually, which can be inefficient and inaccurate. This research aims to address these challenges by implementing the CNN algorithm with VGG-19 architecture to detect coffee fruit ripeness automatically. The process involves collecting datasets of fruit images with various ripeness levels, image pre-processing including cropping and resizing, training the CNN VGG-19 model with feature learning and hyperparameter optimisation and evaluating model performance using a confusion matrix. This experiment aims to evaluate the model's performance in detecting fruit ripeness and measure the speed and efficiency of the CNN-based detection system with VGG-19 architecture. The results of this research are expected to help develop a better system for identifying fruit ripeness.

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