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All Journal Indonesian Journal of Pharmaceutical Science and Technology Journal of Pharmaceutical and Sciences.
Ramadaini, Tiara
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health

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Uji Aktivitas Antioksidan Teh Herbal Biji Durian (Durio zibethinus Murr.) dengan Tambahan Daun stevia (Stevia rebaudiana Bertoni) sebagai Pemanis Alami dengan Metode DPPH Andry, Muhammad; Ramadaini, Tiara; Marseli, Cindy; Nurfitriyana, Nurfitriyana; Azzahra, Rafifah; Syahputra, Hafid; Shiyan, Shaum
Journal of Pharmaceutical and Sciences JPS Volume 8 Nomor 4 (2025)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36490/journal-jps.com.v8i4.1070

Abstract

Free radicals are an important health concern due to their role in the development of various diseases. Antioxidants, capable of neutralizing free radicals, are abundant in plants such as durian seeds (Durio zibethinus Murr.) and stevia leaves (Stevia rebaudiana Bertoni). Herbal tea formulated from these materials has potential as an alternative functional drink because both contain phenolic compounds with antioxidant activity. This study aimed to evaluate the potential of durian seeds and stevia leaves as herbal tea with antioxidant properties. The research involved sample collection, identification, preparation of simplicia, characterization, formulation of herbal tea, quality testing, and determination of antioxidant activity. The simplicia characteristics of durian seeds and stevia leaves showed water content of 6.16% each, water-soluble extract of 35% and 15.8%, ethanol-soluble extract of 25.5% and 14.6%, total ash of 0.73% and 0.3%, and acid-insoluble ash of 0.5% and 0.26%. Quality testing of the herbal tea showed water content of 2.18%, total ash of 3.90%, water-soluble ash of 73.85%, and acid-insoluble ash of 3.80%. Antioxidant activity based on IC50 values was 68.45 ± 1.32 ppm for durian seed tea, 61.6 ± 1.05 ppm for stevia tea, 39.28 ± 0.98 ppm (1:1), 44.64 ± 1.11 ppm (1:2), and 42.32 ppm ± 1.07 (2:1). These results indicate that combining durian seeds and stevia leaves can enhance antioxidant activity compared to individual extracts. Overall, durian seeds and stevia leaves can be developed into herbal tea formulations with very strong antioxidant activity, as reflected in their ability to reduce DPPH radicals. Radikal
Shallot (Allium ascalonicum): An overview of antidiabetic activity by α-glucosidase inhibition Ramadaini, Tiara; Sumiwi, Sri Adi; Febrina, Ellin
Indonesian Journal of Pharmaceutical Science and Technology Vol 12, No 3 (2025)
Publisher : Indonesian Journal of Pharmaceutical Science and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijpst.v12i3.52104

Abstract

Allium ascalonicum (shallot) is a medicinal plant with promising potential in the management of type 2 diabetes mellitus (T2DM). This review summarizes the phytochemical constituents, mechanisms of action, and existing research gaps that warrant further exploration for targeted drug development. A systematic literature search was performed using PubMed, ScienceDirect, and Google Scholar to identify relevant studies published between 2013 and 2023. Only full-text original research articles in English were included, while reviews and incomplete studies were excluded. The search strategy employed the keywords: “Allium ascalonicum OR shallot AND α-glucosidase.” The findings indicate that A. ascalonicum demonstrates significant antidiabetic activity across in vitro, in vivo, and limited human studies, primarily through inhibition of the α-glucosidase enzyme. This activity is largely attributed to quercetin and other flavonoid compounds, which play an essential role in reducing blood glucose levels and mitigating oxidative stress. Collectively, the evidence highlights the therapeutic potential of A. ascalonicum as a natural α-glucosidase inhibitor. However, further clinical investigations and comprehensive toxicity assessments are required to establish its efficacy and safety as a standardized herbal medicine and future phytopharmaceutical candidate for diabetes management.
Co-Authors Ellin Febrina Hafid Syahputra Marseli, Cindy Muhammad Andry Nurfitriyana Nurfitriyana Rafifah Azzahra Shaum Shiyan Sri Adi Sumiwi