Vegetable soaking long time increases carcinogen
Many vegetables, like soaking time, thinking that cleaner, eat at ease. In fact, a long soak wash vegetables, is not necessarily more washed residues, or even an increase would make nitrite carcinogens.
First, immersion is not more effective pesticide residue removal. Associate Professor of Food Science, China Agricultural University, Dai Yunqing that the most important components of pesticide residues in organic phosphorus, and this substance is not water soluble. In contrast, tap water rinse to remove detergent and then soaked in pesticides better.
Second, the long soaking to nitrite contents of vegetables also increased. Soaked with water 20 minutes after the nitrite content in vegetables than washed with detergent, then rinse clean vegetables. Research that may be because the immersion is an anaerobic condition conducive to the enhancement of nitrate reductase activity, reduced nitrite reductase activity, thereby enhancing the nitrite content in vegetables. Finally, a long soak can also damage the leaves of vegetables can increase the nutrient loss.
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