Biological Pretreatment by Solid-State Fermentation of Oat Straw to Enhance Physical Quality of Pellets

Figure 3

Interaction effects of independent variables on the responses of pellets produced by the oat straw pretreated with PC. (a) Interaction between moisture content and fermentation time on density 0. (b) Interaction between fermentation temperature and particle size on density 0. (c) Interaction between fermentation temperature and fermentation time on the dimensional stability.

(a)

(b)

(c)