Sorption of chlorophenols onto fruit cuticles and potato periderm.
To better understand the interaction mechanisms of plant surfaces with polar organic compounds, sorption of 4-chlorophenol, 2,4-dichlorophenol, and 2,4,6-trichlorophenol by fruit cuticles (i.e., tomato, apple, and pepper), and potato tuber periderm were investigated. The roles of cuticular components (waxes, cutin, cutan and sugar) on sorption of chlorophenols are quantitatively compared. Cutin and waxes govern the sorption capacity of bulk apple cuticle by hydrophobic interactions. Potato periderm with highest sugar content exhibits the lowest sorption capability for the chlorophenols. With the increase of hydrophobicity (i.e., Kow ) of sorbate, the relative contribution of lipophilic components (wax, cutin and cutan) on total sorption increases, however, the ratios of Koc to Kow decreases due to increasing ionization degree of sorbates.
Department of Environmental Science, Zhejiang University, Hangzhou 310058, China. yungui2008@yahoo.com.cn
Yungui
Y
Li
Yingqing
Y
Deng
Baoliang
B
Chen
D000327:Adsorption; D001673:Biodegradation, Environmental; D002733:Chlorophenols / Q000302:isolation & purification*; D004602:Elements; D005638:Fruit / Q000033:anatomy & histology*; D007700:Kinetics; D027845:Malus / Q000033:anatomy & histology; D008563:Membrane Lipids / Q000737:chemistry; D012044:Regression Analysis; D011198:Solanum tuberosum / Q000033:anatomy & histology*; D012996:Solutions; D014885:Waxes / Q000737:chemistry
D002733:Chlorophenols; D004602:Elements; D008563:Membrane Lipids; D012996:Solutions; D014885:Waxes; C029107:4-chlorophenol; C000521:cutin; C024564:2,4,6-trichlorophenol; C004762:2,4-dichlorophenol