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      Identifikasi dan Interaksi Molekuler Senyawa Bioaktif Buah Pare (Momordica charantia L.) terhadap Reseptor Xantin Oksidase In Silico

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      Date
      2026
      Jenis/Type
      Skripsi
      Subtype
      Undergraduate Theses
      Author
      Mediartha, I Ketut
      Purwanto, Ukhradiya Magharaniq Safira
      Kurniasih, Rini
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      Abstract
      Hiperurisemia dipicu oleh aktivitas berlebih dari enzim xantin oksidase menyebabkan penyakit kardiovaskular yang parah. Ekstrak etanol dan air buah pare (Momordica charantia L.) diketahui mampu menekan sintesis asam urat, namun mekanisme molekulernya masih belum diteliti lebih lanjut. Penelitian ini bertujuan mengidentifikasi senyawa bioaktif dari buah pare (NusaFarm) dan mengevaluasi interaksi molekulernya terhadap reseptor xantin oksidase (PDB ID: 1FIQ) secara in silico. Metode maserasi menggunakan etanol 96% dan analisis LC-HRMS berhasil menganotasi 132 senyawa yang didominasi oleh asam karboksilat, tanpa adanya senyawa penciri utama. Senyawa penciri minor yang terdeteksi meliputi coumarin dan benzaldehyde. Uji bioavailabilitas, ADME, prediksi toksisitas, serta penapisan virtual (?Gbind and Kd) dievaluasi dengan membandingkannya terhadap asam salisilat dan allopurinol. Hasil penapisan menunjukkan tiga senyawa tidak toksik, namun senyawa dengan interaksi molekuler dan afinitas terbaik coumarin tetap divisualisasikan sebagai senyawa penuntun. Senyawa 4-Nitroaniline menunjukkan interaksi molekuler dan afinitas baik terhadap reseptor 1FIQ dengan nilai ?Gbind sebesar-6,6790 kkal/mol dan nilai Kd sebesar 8,8436 µM.
       
      Hyperuricemia triggered by the overactivity of the xanthine oxidase enzyme, leads to severe cardiovascular diseases. Ethanol and aqueous extracts of bitter gourd (Momordica charantia L.) suppress uric acid synthesis, yet its molecular mechanism remains unexplored. This study identified the bioactive compounds from bitter gourd (NusaFarm) and evaluated their molecular interactions with the xanthine oxidase (PDB ID: 1FIQ) receptor in silico. Maceration using 96% ethanol followed by LC-HRMS analysis successfully annotated 132 compounds, predominantly carboxylic acids, with no major marker compounds detected. Minor marker compounds detected included coumarin and benzaldehyde. Bioavailability, ADME, toxicity prediction, and virtual screening (?Gbind and Kd) were evaluated and compared them against salicylic acid and allopurinol. Screening results revealed three non-toxic compounds; however, coumarin — which exhibited the best molecular interaction and affinity — was still visualized as a lead compound. 4-Nitroaniline demonstrated strong molecular interaction and good affinity toward the 1FIQ receptor, with a ?Gbind value of 6,6790 kcal/mol and a Kd value of 8,8436 µM.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/174105
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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