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Optimizing Growth and Flavonoid Production in Kaempferia angustifolia Using Organic (Chicken and Cow Manure) and Inorganic Fertilizers Aziz, Sandra Arifin; Ridwan, Taopik; Iswantini, Dyah; Trivadila, Trivadila; Murni, Anggia; Rafi, Mohamad
Journal of Tropical Crop Science Vol. 12 No. 02 (2025): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.12.02.365-377

Abstract

Kaempferia angustifolia originated in Southeast Asia and is widely used for its medicinal properties. One of which is from its flavonoids. The research aims to determine the optimal dosage of organic and inorganic fertilizers for promoting the growth and flavonoid production of K. angustifolia. The study was laid out in a split-plot design using organic fertilizers as the main plots (chicken and cow manure at 10 t.ha-1) and inorganic fertilizers as the subplots, consisting of 19 combinations of urea, SP36, and KCl. Each treatment has three replications.  The results showed that there is no interaction between organic and inorganic fertilizers in affecting the growth of Kaempferia angustifolia. Plants treated with chicken manure at 10 tons per hectare have a higher fresh weight than those treated with cow manure. Plants without inorganic fertilizer application showed suppressed growth and yielded more rhizomes three months after planting. Inorganic fertilizer promoted more shoots and tillers, with the highest value obtained from 100 kg.ha-1 urea + 200 kg.ha-1 SP36 + 200 kg.ha-1 KCl application.   The range of total flavonoids in inorganic fertilizer applications is 39.30-131.51% higher than the control, with the highest value observed at 200 kg.ha-1 SP36 + 200 kg.ha-1 KCl application. The results of this study would be useful for producing K. angustifolia for the medicinal industry, using either organic or inorganic fertilizers.
PHENOLIC AND FLAVONOID PRODUCTION, PHYTOCHEMICAL PROFILE, AND ANTIOXIDANT CAPACITY OF Adenostemma platyphyllum AT DIFFERENT CONCENTRATIONS OF HYDROPONIC SOLUTIONS : Produksi Fenolik dan Flavonoid, Profil Fitokimia, dan Kapasitas Antioksidan Adenostemma platyphyllum pada Konsentrasi Larutan Hara Hidroponik Berbeda Tamsin, Aqlia Hanna Nurfatiha; Batubara, Irmanida; Ridwan, Taopik; Trivadila; Aziz, Sandra Arifin
Jurnal Tumbuhan Obat Indonesia Vol. 16 No. 1 (2023): July 2023
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jtoi.v16i1.552

Abstract

Adenostemma platyphyllum is considered a weed with various benefits but has not been widely cultivated. This work aims to obtain the optimum concentration of a nutrient solution (AB-mix) to produce optimum phenolic and flavonoid levels, antioxidant capacity and metabolite profiling in A. platyphyllum using a hydroponic wick system. Different AB-mix nutrient solution concentrations were employed in a one-factor randomized block design. The highest total phenolic, flavonoid concentrations and antioxidant capacity were found in plants without additional nutrient solutions. However, the highest phenolic and flavonoid productivity was found in plants with a nutrient solution concentration of 1100 mg/L. The phenolic/flavonoid group compounds were successfully identified by separating the components using thin-layer chromatography. The intensity of the bands produced from each treatment was quite varied. The untreated plant produced thicker phenolic/flavonoid bands than the other treatments. This was supported by the heatmap pattern produced by the untreated ones, which had high color intensity. Therefore, the optimum concentration of nutrient solution to produce optimum phenolic, flavonoid levels, and antioxidant capacity in A. platyphyllum cultivation by hydroponic wick system was the concentration of 1100 mg/L.