Chemical composition and physicochemical properties of shiitake mushroom and high fiber products

Increasing dietary fiber (DF) intake may help to decrease risk of chronic diseases such as diabetes, cardiovascular disease and colon cancer. The objective of this work was to study and compare the chemical composition and physicochemical properties of some products used as DF sources. The DF source products evaluated were Metamucil, Kania, Tarasca, Nopalinaza, Xotzil and dried shiitake mushroom (Lentinus edodes). Metamucil showed the highest content of DF (52.72%), followed by Kania (50.57%) and DS (49.09%). Also, Metamucil, Kania and DS showed the highest water absorption values 15.9, 8.5, and 5.7 g water/g sample respectively, while DS showed the highest oil absorption capacity (3.1 g oil/g sample). Best values delaying diffusion of glucose were obtained in Metamucil, Nopalinaza, Kania and DS samples. Multiple correlation analysis indicated that soluble fiber contents positively correlated with water absorption capacity, viscosity and minor particle size.