title: Inhibition of acetylcholinesterase activity by essential oil from Citrus paradisi.
abstract: Inhibition of acetylcholinesterase (AChE) activity by essential oils of Citrus paradisi (grapefruit pink in USA) was studied. Inhibition of AChE was measured by the colorimetric method. Nootkatone and auraptene were isolated from C. paradisi oil and showed 17-24% inhibition of AChE activity at the concentration of 1.62 microg/mL.
authors.affiliation: Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University, Higashiosaka-shi, Osaka, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Miyazawa
authors.forename: H
authors.initials: H
authors.lastname: Tougo
authors.forename: M
authors.initials: M
authors.lastname: Ishihara
mesh_terms: D000110:Acetylcholinesterase / Q000097:blood*; D000818:Animals; D002417:Cattle; D002800:Cholinesterase Inhibitors / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002957:Citrus / Q000737:chemistry*; D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D004912:Erythrocytes / Q000201:enzymology; D008401:Gas Chromatography-Mass Spectrometry; D020128:Inhibitory Concentration 50; D007700:Kinetics; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010938:Plant Oils / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D010946:Plants, Medicinal / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013055:Spectrophotometry, Infrared; D014481:United States
chemical_list: D002800:Cholinesterase Inhibitors; D003374:Coumarins; D010938:Plant Oils; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; D000110:Acetylcholinesterase; C105832:aurapten; C050302:nootkatone