Rao, P. S., Nichal, M. A., Harisha, B., Bajaj, R. K., & Mann, B. (2017). Comparison of pH stat and O-phthalaldehyde method for degree of hydrolysis measurement of alcalase and flavourzyme digested casein. Indian Journal of Dairy Science, 71(1). https://epubs.icar.org.in/index.php/IJDS/article/view/72661