Figure 3. Relationship of OD and pH

From

Effect of Ultrasound on the Hydrolytic Reaction of AS1.398 Neutral Protease

HU Ai-jun, CAO Yuan-yuan, QU Ying, SONG Fei-ying, ZHENG Jie

Journal of Food and Nutrition Research. 2016, 4(9), 566-570 doi:10.12691/jfnr-4-9-2