Secondary Metabolites and Antioxidant Activity of Purwoceng (Pimpinella Pruatjan) Root Extracts from Various Hydroponic Planting Techniques

Irmanida Batubara (Department of Chemistry, Faculty of Mathematics and Natural Sciences IPB University Tropical Biopharmaca Research Center, IPB University)
Shadila Fira Asoka (Department of Chemistry, Faculty of Mathematics and Natural Sciences IPB University)
Eni Sumarni (Department of Agricultural Technology, Faculty of Agriculture, General Soedirman University, Purwokerto, Indonesia)
Herry Suhardiyanto (Department of Mechanical and Biosystem Engineering, Faculty of Agricultural Engineering and Technology, IPB University, Bogor, Indonesia)
Mohamad Solahudin (Department of Mechanical and Biosystem Engineering, Faculty of Agricultural Engineering and Technology, IPB University, Bogor, Indonesia)
Slamet Widodo (Department of Mechanical and Biosystem Engineering, Faculty of Agricultural Engineering and Technology, IPB University, Bogor, Indonesia)
Supriyanto Supriyanto (Department of Mechanical and Biosystem Engineering, Faculty of Agricultural Engineering and Technology, IPB University, Bogor, Indonesia)
Eti Rohaeti (Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia Tropical Biopharmaca Research Center, IPB University)
Yudiwanti Wahyu (Department of Agronomy, Faculty of Agriculture, IPB University, Bogor, Indonesia)
Folkes Laumal (Doctoral Program, Department of Mechanical and Biosystem Engineering, Faculty of Agricultural Engineering and Technology, IPB University, Bogor, Indonesia)
Erniati Erniati (Doctoral Program, Department of Mechanical and Biosystem Engineering, Faculty of Agricultural Engineering and Technology, IPB University, Bogor, Indonesia)

Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Vol 12, No 3 (2023): September 2023

Purwoceng (Pimpinella pruatjan) is Indonesia’s native herbs that grow in the highlands but its existence is hard to find. The reason is that purwoceng is difficult to cultivate. A controlled factor in cultivation, such as hydroponic types and nutrient concentration, can be used as a solution to this problem. Hydroponic types and nutrient concentration treatments can affect the secondary metabolites and antioxidant activity of the purwoceng root extract produced. This study aimed to determine total phenolic and flavonoid content, as well as antioxidant activity in three different hydroponic systems (nonrecirculating drip, recirculating drip, and nutrient film technique (NFT)) and two nutrient concentrations (1.5‰ and 2.0‰). The combination of recirculating drip with low nutrient concentration was the best treatment to produce an extract with high phenolic and flavonoid content. Purwoceng root extracts from nonrecirculating with high nutrient concentrations produced high antioxidant activity. The characteristics of extracts from recirculating with low nutrient concentrations were similar to those from the nonrecirculating drip. In contrast, extracts from recirculating with high nutrient concentrations were closer to extracts from NFT, proven by principal component and heat map analysis. Antioxidant activity related to total phenolic content, also the presence of betaine and bergapten in purwoceng root extracts. Keywords: Flavonoid content, NFT, Nonrecirculating drip, Phenolic content, Recirculating drip