Centella asiatica, also known as gotu kola, has shown potential as a biomonitoring plant for heavy metal pollution. The review discusses the ability of Centella asiatica to accumulate heavy metals in different plant parts and its potential use in monitoring changes in heavy metal contamination over time. The review also highlights the importance of assessing the safety of Centella asiatica-based products for human consumption, considering the potential contamination during processing.
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Additionally, the review discusses the various methods used in studies to assess the accumulation of heavy metals in Centella asiatica, such as atomic absorption spectrometry and inductively coupled plasma mass spectrometry. It also emphasizes the need for further research to establish standardized protocols for using Centella asiatica as a biomonitoring plant, as well as to determine the specific heavy metal uptake mechanisms in the plant. Overall, the review suggests that Centella asiatica has great potential as a tool for monitoring heavy metal pollution and underscores the importance of assessing its safety for human consumption in light of potential heavy metal contamination.