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All Journal JSFK (Jurnal Sains Farmasi & Klinis) Pharmaceutical And Biomedical Sciences Journal (PBSJ)
Citraningsih, Kinanti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Determination of Total Phenolic Content and Antioxidant Activity of Epigallocatechin Gallate Rich Fraction from Tea Leaves (Camellia sinensis L.) Amelia, Puteri; Citraningsih, Kinanti; Dewi, Asri Kusuma; Anggia, Vivi; Anggraeni, Yuni
JSFK (Jurnal Sains Farmasi & Klinis) Vol 12 No 1 (2025): J Sains Farm Klin 12(1), April 2025
Publisher : Fakultas Farmasi Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsfk.12.1.36-40.2025

Abstract

The tea plant, Camellia sinensis L., is a well-known natural product with significant health advantages. The main catechin found in green tea leaves is epigallocatechin gallate (EGCG), which has potent antioxidant properties. EGCG is a common active ingredient in products from the medical and cosmetics industries. This study examines the antioxidant properties and total phenolic content (TPC) of an EGCG-rich fraction (ERF) that is extracted from green tea leaves. TPC was quantified using the Folin-Ciocalteu method, with absorbance measured via UV-VIS spectrophotometry at 760.5 nm. Antioxidant activity was assessed using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay, with absorbance recorded at 516 nm. The findings indicated that the TPC of ERF was 437.18 mg GAE/g ± 5.54, while the IC50 value for antioxidant activity was 4.47 mg/L, This value was lower than that of the positive control, Vitamin C, which exhibited an IC₅₀ of 5.07 mg/L. These results suggest that ERF could be developed into a natural ingredient for cosmetics and dietary supplements.
Study of Consumer Satisfaction Levels with E-Pharmacy Services Using the Customer Satisfaction Index (CSI) and Importance Performance Analysis (IPA) Mustafidah, Mabrurotul; Shavira, Rurynta Ferly; Adhamira, Rania; Kinanti, Annisa Putri; Citraningsih, Kinanti
Pharmaceutical and Biomedical Sciences Journal (PBSJ) Vol. 6 No. 1 (2024)
Publisher : Pharmaceutical and Biomedical Sciences Journal (PBSJ)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/pbsj.v6i1.37922

Abstract

E-pharmacy is one of the efforts to improve pharmaceutical services to make them easier and more efficient. Customer Satisfaction Index (CSI) is a scale that can describe consumer satisfaction with a product or service. Customer satisfaction with e-pharmacy services can be assessed by the value of customer expectations for service quality and the reality of the service performance received. This study aims to examine the level of consumer satisfaction, expectations, and priorities for attribute improvement in the dimensions of e-pharmacy services so that service providers can evaluate and improve their services. Furthermore, the analytical method in this study uses an analysis of the results of the gap based on the Service Quality (Servqual), Customer Satisfaction Index (CSI), and Importance Performance Analysis (IPA). The results of this study indicate that attributes' performance on the dimensions of e-pharmacy services is not satisfactory. Customer satisfaction in e-pharmacy service is 86.11% or in the 'very satisfied' category. Meanwhile, the service attribute prioritized for service providers is to improve the guarantee that the drugs given are in good condition (by showing the drug's expiration date).
Co-Authors Adhamira, Rania Amelia, Puteri Dewi, Asri Kusuma Kinanti, Annisa Putri Mustafidah, Mabrurotul Shavira, Rurynta Ferly Vivi Anggia, Vivi Yuni Anggraeni