To make a comprehensive assessment on mono-sodium glutamate(MSG)wastewater pollution,a pollution exposure experiment was carried out on the seed germination and root elongation of wheat,Chinese cabbage and tomato by u...To make a comprehensive assessment on mono-sodium glutamate(MSG)wastewater pollution,a pollution exposure experiment was carried out on the seed germination and root elongation of wheat,Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production.The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elonga-tion and the CODcr of the mother liquor scraps.The toxicity of MSG wastewater to the test crops was in the order of tomato>Chinese cabbage>wheat,indicating that tomato was the most sensitive to the wastewater,and could be considered as an ideal toxic bioindicator.The half-effect concentrations(IC50)based on the seed germination and root elongation of the test crops exposed to the wastewater discharged from various processing phases of MSG produc-tion was 22.0-32432 and 17.3-3320 mg/L,respectively.展开更多
基金This work was supported by the National Natural Science Foundation and the Ministry of Science and Technology of China(Grant No.20225722,20337010,and 2004CB418503).
文摘To make a comprehensive assessment on mono-sodium glutamate(MSG)wastewater pollution,a pollution exposure experiment was carried out on the seed germination and root elongation of wheat,Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production.The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elonga-tion and the CODcr of the mother liquor scraps.The toxicity of MSG wastewater to the test crops was in the order of tomato>Chinese cabbage>wheat,indicating that tomato was the most sensitive to the wastewater,and could be considered as an ideal toxic bioindicator.The half-effect concentrations(IC50)based on the seed germination and root elongation of the test crops exposed to the wastewater discharged from various processing phases of MSG produc-tion was 22.0-32432 and 17.3-3320 mg/L,respectively.
