2. Academic Validation
  3. Non-competitive inhibition of acetylcholinesterase by jaboticaba (Myrciaria cauliflora) peel ethanolic extracts

Non-competitive inhibition of acetylcholinesterase by jaboticaba (Myrciaria cauliflora) peel ethanolic extracts

  • Heliyon. 2024 Jun 3;10(11):e32322. doi: 10.1016/j.heliyon.2024.e32322.
Katharina Ardanareswari 1 2,  Chih-Yuan Tan 1,  Cheng-Kuang Hsu 3,  Yun-Chin Chung 1
Affiliations

Affiliations

  • 1 Department of Food and Nutrition, Providence University, Taichung City, 43301, Republic of China (Taiwan).
  • 2 Department of Food Technology, Faculty of Agricultural Technology, Soegijapranata Catholic University, Semarang, 50234, Indonesia.
  • 3 Department of Food Science, National Chiayi University, Chiayi City, 60004, Republic of China (Taiwan).
PMID: 38912491 DOI: 10.1016/j.heliyon.2024.e32322
Abstract

Specific anthocyanins and phenolic compounds exhibit acetylcholinesterase inhibitory (AChEi) activity. In this study, the AChEi activity of jaboticaba peel extracts were investigated based on their high phenol contents. Jaboticaba peel ethanolic extract (PEX) and aqueous extract (PAX) were prepared by extracting jaboticaba peel with 95% ethanol and boiling water, respectively. Through HPLC-MS/MS and HPLC-PDA analysis, gallic acid was identified in PAX with a concentration of 598.13 ± 42.43 mg/100 g extract, and ellagic acid in PEX with a concentration of 350.47 ± 8.53 mg/100 g extract. Both PEX and PAX showed dose-dependent inhibition against AChE activity, with IC50 values of 3.54 and 4.07 mg/mL, respectively. The mechanism of inhibition of PEX was determined to be non-competitive inhibition based on the decreasing V max and relatively constant K m with increasing PEX concentration, as determined using a Lineweaver-Burk plot.

Keywords

Acetylcholinesterase; Ellagic acid; Gallic acid; Inhibition mechanism; Jaboticaba peel.

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