1. Determination of degree of hydrolysis of food proteins hydrolysates by trinitrobencensulfonic acid;Adler-Nissen;Journal of Agricultural and Food Chemistry,1979
2. Añón, M.C., Quiroga, A., Scilingo, A., & Tironi, V. (2022). Plant bioactive peptides (oilseed, legume, cereal, fruit, and vegetable). In S. M. Jafari, A. Rashidinejad, J. Simal-Gandara, & J. Xiao (Eds.), Handbook of Food Bioactive Ingredients: Properties and Applications (Chapter 27). Springer Nature. https://doi.org/10.1007/978-3-030-81404-5_18-1.
3. AOAC (1984). Official Methods of Analysis. Association of Official Analytical Chemists, 24.002 and 24.009.
4. AOAC (1990). Official Methods of Analysis of the Association of Official Analytical Chemists. Association of Official Analytical Chemists, 920.39.
5. AOAC (1995) Official Methods of Analysis of the Association of Official Analytical Chemists., 991.43.