Research progress on different pickling techniques and their equipment applications

The traditional pickling method for meat has a slow pickling speed and uneven pickling solution, which can easily lead to unstable taste and color of the meat. With the deepening of research in recent years, the improvement mechanism of new technologies such as ultra-high voltage and pulsed electric field on the quality of meat pickling has gradually been elucidated and applied in meat pickling. The article reviews the research progress of different pickling techniques and their equipment applications, including ultrasonic pickling technology, vacuum rolling pickling technology, variable pressure rolling pickling technology, ultra-high pressure pickling technology, and pulse electric field technology. The advantages and disadvantages of these techniques and their applications in industrial production are analyzed, and the shortcomings of current pickling techniques are summarized. The future research directions for meat pickling are also discussed.