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Dedi Junaedi
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INDONESIA
Sci-Tech Journal
Published by Masyarakat Ekonomi Syariah Bogor
ISSN : -     EISSN : 28306759     DOI : 10.56709
Core Subject : Health, Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Public Health
Sci-Tech Journal is a peer-reviewed national journal published by Masyarakat Ekonomi Syariah (MES) Bogor in collaboration with Institut Agama Islam Nasional (IAI-N) Laa Roiba Bogor, Ikatan Ahli Ekonomi Islam (IAEI), and Intelectual Association for Islamic Studies (IAFORIS) . This journal contains scientific papers from academics, researchers and practitioners in the fields of sciences, technology, information, bioindustry, and business research. E-ISSN 2830-6759
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 38 Documents
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Analisis Kandungan Bunga Telang (Clitoria Ternatea) sebagai Minuman Teh Anti Oksidan Adinda Rahma Fitriandita; Duwi Agustina Damayanti; Alief Rachman; Muhammad Ramadhan; Saga Rianto; Denny Oktavina Radianto
Sci-tech Journal Vol. 2 No. 2 (2023): Sci-tech Journal  (STJ)
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v2i2.111

Abstract

The terran flower (Clitoria ternatea) is a pigmented plant. Anthocyanins have the potential to be developed as local natural pigments for various foods. Various foods also contain local natural pigments. It improves color quality and is also an antioxidant. Anti-cancer and anti-inflammatory effects. The purpose of this study was to identify the potential of butterfly pea flower extract as a natural antioxidant in food. In this study, the antioxidant activity test was used with the DPPH method. Analyzing the antioxidant capacity and chemical composition contained in butterfly pea extract. The results show that butterfly flower extract can do this used as a source of local natural dyes and natural antioxidants. Added the ability to make various types of food, such as drinks, ice cream, syrup, bread, and biscuits. Keywords: antioxidant, butterfly pea flower, tea drink
Pengolahan Inovasi Bandeng Modern Kaya Protein dengan Pemanfaatan Sumberdaya Lokal Jawa Timur dan Pemberdayaan Masyarakat  Achmat Samsul Ma’arif; Ristia Emalia Wati; Marsya Cahya Septyarini; Prasstyo Aditya Rahman; Kinaryosih Dressanala; Denny Oktavina Radianto
Sci-tech Journal Vol. 2 No. 2 (2023): Sci-tech Journal  (STJ)
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v2i2.112

Abstract

The main reason people are still reluctant to eat or process milkfish is the large number of spines that are difficult to clean, this reduces their interest in eating milkfish. In this era of globalization, the entry of foreign cultures into Indonesia has had an impact on lifestyles and eating patterns as well as people's culture giving rise to many kinds of food that are unique, practical but still nutritious enough. From the circumstances and opportunities we try to solve social problems while simultaneously wanting to access large market opportunities. This study uses quantitative methods based on systematic facts or characteristics of certain populations factually and carefully. We have created a product that is liked by various groups and utilize social media to attract enthusiasts. Looking at cities in Indonesia where the density is dominated by youth, they are the biggest contributors to urban development in all sectors. The two conditions above are what underlies the birth of this Milkfish Mci business, namely by producing modern processed milkfish products and utilizing social media to attract youth. With the existence of processed milkfish products that are in accordance with the interests of the target market. Because milkfish contains higher nutrition, it is of interest to the general public. For transactions that themselves use the method commonly used by the public. Marketing information uses media that is often found by the target market with the online platform services available in today's digital era. Especially milkfish which is abundant in the East Java area. Keywords: Processing, milkfish, milkfish innovation, milkfish Mci business, processed milkfish products.
Pengembangan LKPD Berbasis Project Based Learning untuk Meningkatkan Keterampilan Berpikir Kritis Siswa pada Materi Bioteknologi Konvesional Kelas XII SMA/IPA Siti Humayroh; Nirwana Anas; Miza Nina Adlini
Sci-tech Journal Vol. 2 No. 2 (2023): Sci-tech Journal  (STJ)
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v2i2.116

Abstract

The research that has been carried out is entitled "Development of LKPD Based on Project Based Learning to Improve Students' Critical Thinking Skills in Biotechnology Material for Class problems, understanding assumptions, formulating and selecting relevant hypotheses. There are five indicators in developing critical thinking, namely; formulate the main problem, reveal existing facts, choose logical arguments, detect different points of view and draw conclusions. This research aims to improve students' critical thinking skills at DHARMAWANGSA MEDAN PRIVATE HIGH SCHOOL in Biology learning. Research Methodology uses Research and Development. The research population was class XII students at DHARMAWANGSA PRIVATE SMA with a sample size of 32 students. Data collection techniques use LKPD, observation sheets and documentation. Data analysis techniques use the level of validity, level of practicality and level of effectiveness. The research results showed that the Validity Level was 85.5% in the very strong category, the Practicality Level was 71.0% in the practical category and the Effectiveness Level was 56.6% in the quite practical category at DHARMAWANGSA MEDAN PRIVATE HIGH SCHOOL. Based on the research above, it can be concluded that the overall level of validity, level of practicality and level of effectiveness of students at DHARMAWANGSA MEDAN PRIVATE HIGH SCHOOL in biology learning is in the good category, although there are still skill aspects below the average percentage value. So this indicates that students are able to face challenges in students' critical thinking skills in the Project Based Learning model
Pemanfaatan Daun Kelor (Moringa oleifera) untuk Bahan Dasar Pembuatan Cendol Jelly sebagai Minuman Tradisional Yuda Adisty; Tri Vanesa; Wahyuni Wahyuni; Miftahul Khairani
Sci-tech Journal Vol. 3 No. 1 (2024): Sci-Tech Journal
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v3i1.120

Abstract

Various types of plants that grow have the potential to provide benefits to human life, one of which is Moringa. Moringa is known as The Miracle Tree because it is proven to be a natural source of nutrients with medicinal properties. Utilization of local food ingredients that are relatively easy to obtain and have nutritional value, such as Moringa oleifera leaves, can be used as functional food products and sources of antioxidants. The research results show that the Moringa plant has various benefits both economically and healthily. Moringa is not only rich in nutrients but also has functional properties because this plant has properties and benefits for human health. Both the nutritional content and various active substances contained in this plant can be used for the benefit of living creatures and the environment. One part of the Moringa plant that has been widely studied for its nutritional content and uses for both food and health is the leaves. In this section there are a variety of nutrients, including calcium, iron, protein, vitamin A, vitamin B and vitamin C. The nutritional content of Moringa leaves is higher compared to other vegetables, namely in the range of 17.2 mg/100 g. The aim of this drink making activity is to utilize traditional ingredients which are rich in vitamins when consumed and are good for health. Keywords: Moringa leaves, active ingredients, vitamins, health.
Analisis dan Simulasi Efisiensi Kinerja Sepic Konverter Berbasis Kontroler Konvensional Destiarani; I Ketut Wiryajati; I Nyoman Wahyu Satiawan
Sci-tech Journal Vol. 2 No. 2 (2023): Sci-tech Journal  (STJ)
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v2i2.184

Abstract

The technology of components and electronic hardware has evolved to be able to produce a DC/DC current system for power, which is achieved by converting the DC power to higher or lower voltage. This DC voltage variable is commonly called the DC-DC Converter. This final task aims to find out the performance of the DC-DC Sepic Converter series design. The simulated testing of the system using SIMULINK/MATLAB software is subsequently obtained from the data analysis of the theoretical output voltage data and the monitoring of measurements that can be analyzed to determine the error level as well as the level of efficiency of the design of the sepic converter. The test was conducted by setting a constant input voltage of 12 V, a frequency of 50 kHz, with a duty cycle variation of 5% to 65% and a given load of 20 Ω. The result of the design of the Sepic Converter at the time of open loop mode with the value of duty Cycle of 5% produces a minimum voltage that is 0,38 V. Subsequently, when given the duty cicle value of 65%, the maximum voltage is 21,22 V error with the highest error rate of 1 V obtained at the 13th data trial. The average error value is 0,642 V and the standard deviation value is 0,453 V, the greatest efficiency point is 78,50% at the moment of the cycle duty value of 65. While the results of the testing of the Set of Sepic Konverters at the close loop mode, the input tension is given constantly 12 V. The configuration for the parameter value of PI is also constant, namely at the set point of 22,22 V, it is 21,97 V with an error difference 0,25 V.
Perancangan Strategi Pemasaran pada Coffee Shop dengan Metode SWOT dan QSPM: Studi Kasus: Kafe Ruang Warga Akbar Sodikin Febriansyah
Sci-tech Journal Vol. 3 No. 1 (2024): Sci-Tech Journal
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v3i1.194

Abstract

Marketing strategies in cafés are essential to attract and retain customers. This can be done through the use of social media and influencers, as well as ensuring product quality, service, and speed. Ruang Warga is a café in Jombang district. The implementation of inappropriate marketing strategies during the pandemic has made it difficult for Ruang Warga café to survive in today's business competition. Judging from January to May, visitor data is not stable and has even decreased with 1731 visitors in February. The purpose of this study is to implement a product marketing strategy using the SWOT and QSPM methods. This research uses SWOT and QSPM methods which are useful for knowing internal and external factors that can affect product sales. Then with the proposed improvements to increase consumer attractiveness to face market competition. The results of the SWOT analysis obtained three alternative strategies with the QSPM matrix to determine the strategic priority ranking. With the results of TAS 6.81, namely by prioritizing and developing marketing through social media by reaching a wider target market and making it easier to increase cafe branding. By prioritizing and developing marketing through social media, it can reach a wider target market and make it easier to increase cafe branding.
Analisis Kadar Formalin pada Mie Basah yang Dijual oleh Pedagang Bakso di Kota Sorong Menggunakan Spektrofotometer UV-Visible Siti Fatma Zf; Ratih Arum Astuti; Lukman Hardia
Sci-tech Journal Vol. 3 No. 1 (2024): Sci-Tech Journal
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v3i1.232

Abstract

Noodles are a popular food among middle class people, both upper and lower classes because they taste delicious and are affordable. Wet noodles have a short shelf life due to their high water content, this is what encourages some sellers to use formaldehyde as a preservative. This examination means to decide if there is formalin content in examples of wet noodles sold by meatball brokers in Sorong City. Formalin investigation was completed subjectively and quantitatively. Subjective tests were done by adding chromatogenic corrosive to wet noodle tests and quantitative tests were completed to see the degree of formaldehyde contained in the examples utilizing an UV-noticeable spectrophotometer. The consequences of the subjective test showed that one example with code (S1) was recognized as sure for containing formaldehyde, which was demonstrated by the adjustment of the shade of the filtrate from brown to purple subsequent to being dribbled with chromatophic corrosive reagent and warmed in bubbling water. The total formalin content contained in sample S1 was 0.905%.
Idealitas Weight and Balance pada Pesawat Tipe Comac ARJ21-700 Maskapai TransNusa di Bandar Udara Internasional Soekarno-Hatta Nurul Hikmah; Dhiani Dyahjatmayanti
Sci-tech Journal Vol. 3 No. 1 (2024): Sci-Tech Journal
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v3i1.257

Abstract

The calculation of weight and balance requires high accuracy so that the flight can be carried out safely to the destination airport. A number of obstacles that load control officers experience can affect the ideality of weight and balance and must be properly calculated. The purpose of this research is to determine the ideal weight and balance of Comac ARJ21-700 aircraft of TransNusa airline at Soekarno-Hatta International Airport. This research uses qualitative and quantitative methods using primary data obtained through observation and interviews, secondary data using documentation and literature studies. Data collection techniques used by observation, interviews and documentation. Interviews were conducted with supervisors and senior load control narrow body and junior load control. Data analysis techniques by means of data collection, data reduction, data presentation, and conclusion drawing. The results of this study are the obstacles of load control officers in calculating the weight and balance of Comac ARJ21-700 aircraft of TransNusa airline, namely the delay of check-in officers in inputting data on the number of passengers and luggage. Determination of the location of passengers and luggage is carried out by check-in officers, if there is a mismatch, the load control officer makes a request to the check-in officer to maximize the front compartment. The average center of gravity of the Comac ARJ21-700 shows at -7.29UP which states that the center of gravity of the Comac ARJ21-700 is -7.29UP.

Page 4 of 4 | Total Record : 38

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