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Original Article

J App Pharm Sci. 2020; 10(1): 101-107

Acetylcholinesterase: Inhibitory Activity of Some Indonesian Vegetables and Fraction of Selected Plants

Maulita Cut Nuria, Asep Gana Suganda, Elin Yulinah Sukandar, Muhamad Insanu.

Dementia is a global health problem that requires severe treatment. People with dementia who consume vegetables everyday can reduce the risk of dementia. One type of diseases characterized by dementia is Alzheimer’s, which resulting in the decreased neurotransmitter acetylcholine. This study was to investigate the acetylcholinesterase enzyme (AChE) inhibitory activity of various vegetables which are widely used by Indonesian Sundanese and Javanese ethnics. In this study, total phenolic and flavonoid content were analyzed for determination of active compounds of the extracts. Ethanol extracts of 13 vegetables have been tested for AChE inhibitory activity using Ellman's colorimetric method in 96-well plate. Four types of extracts (Cosmos caudatus, Nasturtium officinale, Nothopanax fruticosus, and Ocimum americanum) had higher total phenolic and flavonoid content than other extracts. Vegetable extracts that had IC50 values less than 1000 µg/mL were C. caudatus and O. americanum. Both of these extracts were partitioned with n-hexane and water. The IC50 values of water fraction of C. caudatus and n-hexane fraction of O. americanum were 325.0±18.3 and 374.4±42.1 µg/mL, respectively. These result showed that fractions had a potential inhibitor of AChE and the chemical components (phenolic, flavonoid, and terpenoid) can be isolated to find the active compound.

Key words: Acetylcholinesterase, flavonoid, phenolic, vegetables

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