They certainly do. They contain one of the highest known concentrations of chitin of any known insect, and as I mentioned, some get consumed in the process. There are also tons of pupae casings left over in the process, and I sift out "remnants", and put it back in the bin for further processing.lek said:i don't know whether black soldier fly has bacteria that can produce chitinase or not. chitinase assay kit should give you an answer.
I have no idea how one tests for chitinase. That's not a standard thing that non-scientists do.