这项工作的目的是评估超声(US)的潜力,单独或与温和加热和/或EDTA结合以减少As,Cd,I,海带和汞含量。As的浓度,Cd,I,和Hg为56.29、0.596、7340和<0.01mgkg-1干重,分别,在长尾草叶片中发现。在50°C下用US处理增加约。释放的As量的2倍,虽然没有显著影响Cd或I的含量,与对照(无美国)样品相比。将温度降低到8°C显着降低了US的效果,但与在50°C下的处理相比,在80°C下加热不会产生显著影响。另一方面,在50°C下用0.1NEDTA处理可使释放的Cd百分比提高约7倍,不管声处理。在目前的工作中,US和EDTA在50°C下5分钟的组合导致As(32%)的显着降低,金鸡乳杆菌中Cd(52%)和I(31%)含量,从而提高产品对消费者的安全性。
The aim of this work was to evaluate the potential of ultrasound (US), alone or in combination with mild heating and/or EDTA towards reduction of As, Cd, I, and Hg content of Laminaria hyperborea. Concentrations of As, Cd, I, and Hg of 56.29, 0.596, 7340, and <0.01 mg kg-1 of dry weight, respectively, were found in L. hyperborea blades. Treatment with US at 50 °C increased approx. 2-fold the amount of As released, although did not affect significantly the content of Cd or I, as compared to control (no US) samples. Reducing the temperature to 8 °C significantly decreased the effect of US, but heating at 80 °C did not cause a significant effect as compared to treatments at 50 °C. On the other hand, treatment with 0.1 N EDTA at 50 °C enhanced the percentage of Cd released by approximately 7-fold, regardless of sonication. In the present work, the combination of US and EDTA at 50 °C for 5 min led to a significant reduction of the As (32%), Cd (52%) and I (31%) content in L. hyperborea, thus improving the product\'s safety for consumers.