Response surface method optimized hotbed chive pigment extraction process and application thereof

The invention relates to a response surface method optimized hotbed chive pigment extraction process and application thereof. The extraction process comprises the following steps of cleaning hotbed chives, and steaming the cleaned hotbed chives into cooked hotbed chives, drying the cooked hotbed chives to obtain a cooked hotbed chive dried product, crushing the cooked dried hotbed chives product to obtain cooked hotbed chives powder, and finally, adding the cooked hotbed chives powder into an ethanol solution, carrying out ultrasonic extraction, carrying out suction filtration on the extractedsolution after the extraction is finished, combining clear solutions, passing through a micro-filtration membrane to obtain an effluent, recovering ethanol to obtain a concentrated solution, and carrying out low-temperature freezing on the concentrated solution to obtain the hotbed chives pigment. The method is simple in extraction process, high in extraction efficiency and easy to apply and popularize, a response surfac