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Antioxidant and anticholinesterase activities of eleven edible plants

Boga, Mehmet, Hacibekiroglu, Isil, Kolak, Ufuk
Pharmaceutical biology 2011 v.49 no.3 pp. 290-295
Apium graveolens, Beta vulgaris, Borago officinalis, Brassica oleracea, Cinnamomum, Eruca vesicaria subsp. sativa, Helianthus tuberosus, Jerusalem artichokes, Portulaca oleracea, Rosa canina, Spinacia oleracea, Tilia tomentosa, acetylcholinesterase, antioxidant activity, antioxidants, cabbage, celery, chard, cholinesterase, cinnamon, ethanol, flowers, food plants, fruits, methylene chloride, rose hips, spinach, tea
Context: Consumers have become more interested in beneficial effects of vegetables, fruits, and tea to protect their health. Objective: The antioxidant potential and anticholinesterase activity of eleven edible plants were investigated. Material and methods: The dichloromethane, ethanol and water extracts prepared from celery [Apium graveolens L. (Umbelliferae)], Jerusalem artichoke [Helianthus tuberosus L. (Compositae)], spinach [Spinacia oleracea L. (Chenopodiaceae)], chard [Beta vulgaris L. var. cicla (Chenopodiaceae)], purslane [Portulaca oleracea L. (Portulacaceae)], ispit, or borage [Trachystemon orientale (L.) G. Don (Boraginaceae)], garden rocket [Eruca sativa Mill. (Brassicaceae)], red cabbage [Brassica oleracea L. var. capitata f. rubra DC. (Cruciferae)], lime flower [Tilia tomentosa Moench (Tiliaceae)], cinnamon [Cinnamomum cassia Presl. (Lauraceae)], and rosehip [Rosa canina L. (Rosaceae)], were tested to determine their antioxidant and anticholinesterase activities by using CUPRAC (cupric reducing antioxidant capacity) and Ellman methods, respectively, for the first time. Results: As a result, the dichloromethane, ethanol and water extracts of cinnamon showed the best antioxidant effect among the extracts of the tested plants. The ethanol extract of cinnamon exhibited 63.02% inhibition against acetylcholinesterase and 85.11% inhibition against butyrylcholinesterase (BChE) at 200 µg/mL concentration while the dichloromethane extract of garden rocket possessed the highest inhibition (91.27%) against BChE among all the tested extracts. Discussion and conclusion: This study indicated that the ethanol extract of cinnamon may be a new potential resource of natural antioxidant and anticholinesterase compounds.