ArticleApplied biochemistry and biotechnology2026
UHPLC/HRMS-Based Metabolomic Profiling, Antioxidant, and Antibacterial Activity of Dendrobium crumenatum from the Different Regions of Indonesian Conservation Areas.
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Abstract
Dendrobium crumenatum grows extensively in Indonesia, with certain specimens preserved in nature conservation areas such as the Bogor Botanical Gardens (BBG) and the Ujung Kulon National Park (UKNP). Nevertheless, its abundance is frequently underutilized. This study investigated the metabolite profiles of D. crumenatum (leaf and stem) preserved in BBG and UKNP based on untargeted metabolomics of UHPLC-HRMS. The samples were classified using Principal Component Analysis (PCA), Variable Importance in Projection (VIP), heatmap, K-means, and correlation network plots. The D. crumenatum samples were further evaluated for their antioxidant and antibacterial activities, and the mechanism was predicted through molecular docking targeting specific enzymatic processes in pathogenic bacteria. The results showed a correlation between the metabolite profile and the geographical location of each conservation site. Soil nitrogen content and rainfall significantly affected the abundance of metabolites in D. crumenatum leaves and stems. UKNP leaves exhibit greater antioxidant activity through the ABTS radical scavenging (IC
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