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      Studi Histokimia dan Aktivitas Antioksidan Ekstrak Batang Akar kuning (Arcangelisia flava) dari Dekoksi Air dan Maserasi dengan Pelarut Etanol

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      Date
      2025
      Author
      CHRISTIAN, ANGELYN CAHYA
      Sulistyaningsih, Yohana Caecilia
      Safithri, Mega
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      Abstract
      Akar kuning (Arcangelisia flava (L.) Merr.) merupakan tumbuhan obat tradisional dengan potensi antioksidan tinggi, namun informasi mengenai distribusi metabolit dan efektivitas metode ekstraksi masih terbatas. Penelitian ini bertujuan mengidentifikasi distribusi metabolit sekunder batang A. flava melalui uji histokimia serta menganalisis pengaruh dekoksi air dan maserasi etanol 70% terhadap kandungan fenolik, flavonoid, dan aktivitas antioksidan. Uji histokimia dilakukan pada irisan batang segar dengan reagen spesifik. Kandungan fenolik ditentukan dengan metode Folin–Ciocalteu, flavonoid dengan kompleksasi AlCl3, dan aktivitas antioksidan dengan uji DPPH. Hasil histokimia menunjukkan fenolik, alkaloid, lipofilik, dan terpenoid terakumulasi pada idioblas, latisifer, dan ruang antar sel yang tersebar di berbagai jaringan, sedangkan flavonoid terakumulasi di ruang antar sel. Ekstrak air menghasilkan kadar fenolik dan flavonoid total yang lebih tinggi daripada ekstrak etanol, tetapi ekstrak etanol menunjukkan aktivitas antioksidan yang lebih kuat. Temuan ini menegaskan relevansi dekoksi untuk konsumsi tradisional dan potensi maserasi etanol untuk pengembangan sediaan farmasi modern.
       
      Akar kuning (Arcangelisia flava (L.) Merr.) is a traditional medicinal plant with high antioxidant potential, but information on the distribution of metabolites and the effectiveness of extraction methods is still limited. This study aims to identify the distribution of secondary metabolites of A. flava stems through histochemical tests and to analyze the effect of water decoction and 70% ethanol maceration on phenolic, flavonoid, and antioxidant activity. Histochemical tests were performed on fresh stem slices with specific reagents. Phenolic content was determined by the Folin–Ciocalteu method, flavonoids by AlCl3 complexation, and antioxidant activity by DPPH assay. Histochemical results showed that phenolics, alkaloids, lipophilics, and terpenoids accumulated in idioblasts, laticifers, and intercellular spaces spread across various tissues, while flavonoids accumulated in the intercellular spaces. The water extract produced higher total phenolic and flavonoid levels than the ethanol extract, but the ethanol extract showed stronger antioxidant activity. These findings confirm the relevance of decoctions for traditional consumption and the potential of ethanol maceration for the development of modern pharmaceutical preparations.
       
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      http://repository.ipb.ac.id/handle/123456789/170863
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      • UT - Biology [2396]

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      Indonesia DSpace Group 
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