Produktivitas Fenolik, Flavonoid, dan Kapasitas Antioksidan Adenostemma lavenia Pada Naungan dan Konsentrasi Hara Berbeda.

Abstract

Variasi naungan dan konsentrasi hara pada budidaya tanaman obat Adenostemma Lavenia menggunakan metode hidroponik dapat menghasilkan produktivitas fenolik, flavonoid, dan kapasitas antioksidan yang berbeda. Kadar fenolik, flavonoid, dan kapasitas antioksidan ditentukan menggunakan spektrofotometri UV-Vis. Hasil penelitian menunjukkan kombinasi tanpa naungan dan 600 ppm hara menghasilkan produktivitas fenolik tertinggi sebesar 7,68±1,67 μmol Gallic Acid Equivalent/g tanaman, Kombinasi naungan 25% dan 1000 ppm hara menghasilkan produktivitas flavonoid tertinggi sebesar 0,58±0,34 μmol Quercetin Equivalent/g tanaman, dan kombinasi tanpa naungan dan 600 ppm hara menghasilkan produktivitas kapasitas antioksidan tertinggi sebesar 536,23±117,66 μmol Ascorbic Acid Equivalent/g tanaman. Hasil terbaik yaitu pada produktivitas flavonoid kombinasi tanpa naungan dan konsentrasi 800 ppm. Kata kunci: Adenostemma lavenia, fenolik, konsentrasi hara, naungan, kapasitas antioksidan. ABSTRACT FATIMAH SYAM KARSONO PUTRI. Analysis of Productivity Phenolic, Flavonoid, and Antioxidant Capacity of Adenostemma lavenia under Different Light Conditions and Nutrient Concentrations.. Supervised by IRMANIDA BATUBARA and TAOPIK RIDWAN. Variations in shading levels and nutrient concentrations in the cultivation of the medicinal plant Adenostemma lavenia using hydroponic methods can lead to distinct yields of phenolic compounds, flavonoids, and antioxidant capacity. The levels of phenolic compounds, flavonoids, and antioxidant capacity were determined using UV-Vis spectrophotometry. The research results revealed that the combination of no shading and 600 ppm nutrient concentration resulted in the highest phenolic productivity of 7.68±1.67 μmol Gallic Acid Equivalent per plant. The combination of 25% shading and 1000 ppm nutrient concentration yielded the highest flavonoid productivity of 0.58±0.34 μmol Quercetin Equivalent per plant. Additionally, the combination of no shading and 600 ppm nutrient concentration exhibited the highest antioxidant capacity productivity of 536.23±117.66 μmol Ascorbic Acid Equivalent per plant. The optimal outcome was observed in the flavonoid productivity of the no shading and 800 ppm nutrient concentration combination. Keywords: Adenostemma lavenia, antioxidant capacity, nutrient concentration, shade, phenolic compounds.