Do complex proteins worsen Crohn's symptoms?

"Gut mucosal response to food antigens in Crohn's disease" in Alimentary Pharacology and Therapeutics (2002) [full article]
"It is therefore a plausible hypothesis that the complex proteins present in food may contribute to the inflammatory process."

See PDCAAS on Wikipedia
""Protein Digestibility Corrected Amino Acid Score (PDCAAS) is a method of evaluating the protein quality based on both the amino acid requirements of humans and their ability to digest it. ...
A PDCAAS value of 1 is the highest, and 0 the lowest. The table shows the ratings of selected foods.
1.00 casein (milk protein)
1.00 egg white
1.00 soy protein
1.00 whey (milk protein)
0.92 beef
0.91 soybeans
0.78 chickpeas
0.76 fruits
0.73 vegetables
0.70 Other legumes
0.59 cereals and derivatives
0.42 whole wheat
Limitations:  Amino acids that move beyond the terminal ileum in the body are less likely to be absorbed for use in protein synthesis. They may pass out of the body, or may be absorbed by bacteria, and thus will not be present in the faeces, and will appear to have been digested. The PDCAAS takes no account of where the proteins have been digested.
Similarly, amino acids that are lost due to antinutritional factors present in many foods are assumed to be digested according to the PDCAAS."