Figure 2. Changes in pH during storage at -20°C of frozen oysters by the initial freshness

From

Initial Freshness of Pacific Oyster (Crassostea gigas) Affects Its Quality and Self-life during Freezing Storage

Hong Hee LEE, Woo Young JUNG, Won Kyung LEE, Jin Gi MIN

Journal of Food and Nutrition Research. 2017, 5(9), 629-635 doi:10.12691/jfnr-5-9-1