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      Aktivitas Inhibisi a-Glukosidase Campuran Ekstrak Daun dan Rakis Suren (Toona sureni) sebagai Antidiabetes

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      Date
      2025
      Author
      Putri, Kayla Rizky Amalia
      Falah, Syamsul
      Andrianto, Dimas
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      Abstract
      Daun dan rakis suren (Toona sureni) diketahui mengandung senyawa yang berpotensi sebagai inhibitor enzim a-glukosidase untuk pengendalian diabetes melitus. Penelitian ini bertujuan mengevaluasi aktivitas inhibisi a-glukosidase secara in vitro dari ekstrak tunggal dan campuran daun serta rakis suren menggunakan pelarut etanol 70% dan akuades. Prosedur yang dilakukan pada penelitian antara lain analisis kadar air, ekstraksi dengan metode maserasi dan refluks, uji aktivitas inhibisi a-glukosidase, serta analisis data menggunakan perangkat statistik. Hasil menunjukkan bahwa aktivitas inhibisi tertinggi terdapat pada campuran daun dan rakis, dengan persentase inhibisi dan IC50 masing-masing sebesar 72,03±0,28% dan 114,82±11,47 ppm dari ekstrak etanol 70%, serta 63,61±0,72% dan 197,01±27,95 ppm dari ekstrak akuades. Ekstrak campuran menunjukkan efek sinergis dalam menghambat enzim a-glukosidase dibandingkan ekstrak tunggal. Kesimpulan dari penelitian ini yaitu kombinasi ekstrak dan pelarut memiliki pengaruh terhadap aktivitas penghambatan enzim a-glukosidase, dengan aktivitas inhibisi terbaik dari campuran ekstrak etanol 70% daun dan rakis suren.
       
      The leaves and rachis of suren (Toona sureni) are known to contain compounds with potential as a-glucosidase enzyme inhibitors for diabetes mellitus control. This study aimed to evaluate the in vitro a-glucosidase inhibitory activity of single and combined extracts of suren leaves and rachis using 70% ethanol and distilled water as solvents. The procedures carried out in this study included moisture content analysis, extraction using maceration and reflux methods, a glucosidase inhibitory activity assay, and data analysis using statistical tools. The results showed that the highest inhibitory activity was observed in the combination of leaf and rachis, with inhibition percentage and IC50 values of 72.03±0.28% and 114.82±11.47 ppm for the 70% ethanol extract, and 63.61±0.72% and 197.01±27.95 ppm for the aqueous extract, respectively. The combined extracts exhibited a synergistic effect in inhibiting the a-glucosidase enzyme compared to single extracts. The conclusion of this study is that extract combination and solvent type influence the a-glucosidase inhibitory activity, with the best inhibition shown by the leaf and rachis combination extracted with 70% ethanol.
       
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      http://repository.ipb.ac.id/handle/123456789/163962
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      • UT - Biochemistry [1463]

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