Abstract
Chlorophyll, carotenoid, total phenolic compound, and tocopherol contents of daraesoon (shoot of the Siberian gooseberry tree, Actinidia arguta Planchon) were determined after blanching and during drying in the dark (13 days) and under light (10 days), using HPLC and spectrophotometry. Blanching caused a significant (p<0.05) increase in the total chlorophyll content to 4,629.8 mg/kg from 2,932.5 mg/kg, and in the β-carotene content to 4,953.4 mg/kg from 4,590.5 mg/kg, compared with controls. Drying of blanched daraesoon caused a significant (p<0.05) loss of chlorophylls and carotenoids, and carotenoids were more affected by light than chlorophylls. Total phenolic compounds and tocopherols were also degraded during blanching and drying, with more degradation of tocopherols (up to 54.3%) than for total phenolic compounds (up to 15.8%). In spite of degradation of pigments and antioxidants during drying, dried daraesoon provides high levels of health-beneficial carotenoids, total phenolic compounds, and tocopherols.
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Ahn, H., Choe, E. Effects of blanching and drying on pigments and antioxidants of daraesoon (shoot of the Siberian gooseberry tree, Actinidia arguta Planchon). Food Sci Biotechnol 24, 1265–1270 (2015). https://doi.org/10.1007/s10068-015-0162-4
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DOI: https://doi.org/10.1007/s10068-015-0162-4