A total of 108 samples of twelve vegetables types were randomly collected from three traditional markets (TayLoc, Ben Ngu and An Cuu) in Hue city, Vietnam between March 2013 and January 2014. For each vegetable type,three samples from three different stalls were collected. The twelve types of vegetables analyzed in this study were young mustard greens (Brassica juncea), celery (Apium graveolens), amaranth (Amaranthus tricolor), cilantro(Coriandrum sativum), water spinach (Ipomoea aquatica),rice paddy herb (Limnophila aromatica), Vietnamese cilantro (Persicaria odorata), basil (Ocimum basilicum), centella (Centella asiatica), lettuce (Lactuca sativa var.
longifolia), watercress (Nasturtium officinale), and iceberg lettuce (Lactuca sativa var. capitata). Five hundred grams of each vegetable were collected, identified and placed in
separate sterilized bags and immediately transported to the laboratory in an ice box.
A total of 108 samples of twelve vegetables types were randomly collected from three traditional markets (TayLoc, Ben Ngu and An Cuu) in Hue city, Vietnam between March 2013 and January 2014. For each vegetable type,three samples from three different stalls were collected. The twelve types of vegetables analyzed in this study were young mustard greens (Brassica juncea), celery (Apium graveolens), amaranth (Amaranthus tricolor), cilantro(Coriandrum sativum), water spinach (Ipomoea aquatica),rice paddy herb (Limnophila aromatica), Vietnamese cilantro (Persicaria odorata), basil (Ocimum basilicum), centella (Centella asiatica), lettuce (Lactuca sativa var.longifolia), watercress (Nasturtium officinale), and iceberg lettuce (Lactuca sativa var. capitata). Five hundred grams of each vegetable were collected, identified and placed inseparate sterilized bags and immediately transported to the laboratory in an ice box.
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