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All Journal Jurnal Teknologi Informasi dan Pendidikan Inovasi Kesehatan Global
Pingki Pingki
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Computer Science & IT Control & Systems Engineering Education Engineering Medicine & Pharmacology Nursing Public Health

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Analysis of User Satisfaction Virtual Reality Tourism Kemenparekraf Using the End User Computing Satisfaction Method Pingki Pingki; Wira Bharata
Jurnal Teknologi Informasi dan Pendidikan Vol 16 No 1 (2023): Jurnal Teknologi Informasi dan Pendidikan
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtip.v16i1.697

Abstract

Virtual Reality (VR) has developed on the concept of tourism where people can enjoy virtual tourist destinations called VR Tourism. The tourism industry, one of which is Indonesia, is utilizing this technology development as a marketing strategy for tourist objects, one of which is VR Tourism Kemenparekraf. Previous research on how VR affects marketing has been carried out a lot, but this research will focus on user responses to VR Tourism services which are still little done. From this, by utilizing the End User Computing Satisfaction (EUCS) method, it is used to measure the satisfaction of VR Tourism Kemenparekraf users, as well as to see whether this method is still relevant to use. Respondents were determined as many as 75 people who had used VR Tourism Kemenparekraf at least once. The data was processed using SPSS software, where the research results found that all variables contained in the EUCS method had a positive effect on user satisfaction. Users are satisfied with VR Tourism Kemenparekraf. The EUCS method is still relevant for use in testing user satisfaction in VR Tourism Ministry of Tourism and Creative Economy.
Isolasi dan Identifikasi Senyawa Metabolit Sekunder Ekstrak Daun Kopi Arabika (Coffea arabica) Menggunakan Teknik Kromatografi Nurul Amaliya Hikma; A. Nur Afiah Rahman; Siti Aisyah Basir; A. Yeyen Maharani; Pingki Pingki; A. Putri Wulandari Syam; Mufidah Humairah S; Nur Andini; Fatma Fatma; Fityatun Usman
Inovasi Kesehatan Global Vol. 2 No. 3 (2025): Agustus : Inovasi Kesehatan Global
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/ikg.v2i3.2216

Abstract

This study aims to extract and purify secondary metabolite compounds from Coffea arabica leaves using various separation techniques, such as maceration, column chromatography, thin layer chromatography (KLT), and preparatory KLT, and followed by flavonoid content analysis using UV-Vis spectrophotometry. The process begins with drying the arabica coffee leaves, then extraction is carried out using 96% ethanol for three days. After that, the solvent is evaporated with a rotary evaporator at 60°C to obtain a viscous extract. The extracts were further separated using column chromatography with a mixed solvent of n-hexane: ethyl acetate (3:1), resulting in 12 fractions that showed color differences, which was an indication of the diversity of the compounds in the extract. Advanced identification was carried out with KLT using methanol solvents: chloroform (9:1) at UV wavelengths of 254 nm and 366 nm, indicating the presence of compounds with medium to high polarity. Furthermore, the isolated compounds were further separated using the preparative KLT (KLTP) method. To determine the flavonoid content, UV-Vis spectrophotometry was performed at a wavelength of 431 nm, using quercetin as standard. The results of the analysis showed that Arabica coffee leaf extract had a yield of 7.35% and a total flavonoid content of 19.0605 mgQE/g. These findings show that arabica coffee leaves are a source of flavonoid compounds that have the potential for the development of herbal or phytopharmaceutical products. The flavonoid content found may provide health benefits, particularly in increasing antioxidant activity, which can be used in the treatment of oxidative stress-related diseases. The results of this study also open up opportunities for the development of plant-based products, especially Arabica coffee, in the pharmaceutical and cosmetic industries as an efficacious natural active ingredient.
Co-Authors A. Nur Afiah Rahman A. Putri Wulandari Syam A. Yeyen Maharani Fatma Fatma Fityatun Usman Mufidah Humairah S Nur Andini Nurul Amaliya Hikma Siti Aisyah Basir Wira bharata