title: Decontamination of aquatic vegetable leaves by removing trace toxic metals during pickling process with acetic acid solution.
abstract: The heavy-metal content of aquatic plants is mainly dependent upon their ecological system. This study indicated that although the toxic heavy-metal contents could be above the recommended maximum levels depending upon their concentrations in growing water, they can be decontaminated by pickling with 5% acetic acid solution. Almost all Cd, Hg, Ba, or Sb and 99.5% Pb, 96.7% Ag, or 97.1% Al were removed from Water Spinach leaves by soaking in acetic acid solution. For Water-Shield leaves, almost all Cd, Hg, Pb, Ba, or Sb and 95.0% Ag or 96.1% Al were removed. For Watercress leaves, almost all Cd, Hg, Ba, or Sb and 99.0% Pb or 99.7% Ag were removed. For Water Hyacinth leaves, almost all Cd, Ba, or Sb and 99.0% Hg, 98.5% Pb, 95.0% Ag, or 98.7% Al were removed.
authors: College of Food Science, Southwest University, People's Republic of China. wbwu62@yahoo.com
authors: Wenbiao
authors: W
authors: Wu
authors: Yixing
authors: Y
authors: Yang
mesh_terms: D019342:Acetic Acid / Q000494:pharmacology*; D003666:Decontamination / Q000379:methods*; D017753:Ecosystem; D031806:Eichhornia / Q000737:chemistry; D005506:Food Contamination; D005511:Food Handling / Q000379:methods*; D019216:Metals, Heavy / Q000737:chemistry*; D031223:Nasturtium / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*; D014675:Vegetables / Q000737:chemistry*
chemical_list: D019216:Metals, Heavy; D019342:Acetic Acid