Table 5. Predicted levels of optimum hydrolysis condition for the maximum responses by ridge analysis total yield on total dietary fiber (TDF), water-soluble dietary fiber (SDF) and water-insoluble dietary fiber (IDF) content of Opuntia humifusa stem

Response Response Enzyme concentration (%) Reaction time (h) Result (%) Morphology
Total yield Max 2.46 2.47 54.12 Saddle point
Min 0.69 4.18 39.51  
TDF content Max 0.98 1.29 48.54 Saddle point
Min 0.91 4.61 27.28  
SDF content Max 0.96 1.32 46.97 Saddle point
Min 0.90 4.59 25.79  
IDF content Max 1.68 1.03 3.64 Saddle point
Min 2.32 4.13 0.71