Lead removal method for porphyra haitanensis
A technology for the removal of almond laver, which is applied in application, food preparation, food science, etc., can solve the problems of excessive heavy metal element content, restricting the export of altar laver products, and affecting children's health, so as to reduce harm, speed up, and remove In addition to the effect of less time
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[0011] Put 5 grams of fresh seaweed into a conical flask, add 25 ml of deionized water, and then move the conical flask into an ultrasonic extractor. Under the conditions of an ultrasonic temperature of 35°C and an ultrasonic frequency of 25KHz, use ultrasonic waves for 0.5 seconds , Pause at intervals of 0.5 seconds to ultrasonically treat the laver in the container. The total ultrasonic time is 20 minutes, and the deleaded laver with good removal effect can be obtained; at the same time, some other heavy metals can also be removed.
[0012] In the above-mentioned embodiment, the interval ultrasonic method can also be ultrasonic 0.3 seconds, pause 0.7 seconds, or ultrasonic 0.6 seconds, pause 0.4 seconds, etc.; the ultrasonic temperature can also be 30°C, 25°C or 45°C, etc.; the total ultrasonic time can also be 15 minutes or 25 minutes.
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