The microbial protein production on passion fruit peel shell as an animal protein supplement production is an alternative found out to avoid the large wastage of agri-industrial residues. Through the desorption isotherms of passion fruit peel, it is verified that for the microorganism growth by solid-state fermentation on this residue, the initial moisture content condition should be above 55% (wet basis). The ideal moisture content range for residue storage is around 5.3% (wet basis).
water activity; solid-state fermentation; fruit residues
