Silkworms and serrapeptase

[SPandS]

I tried searching for more information about this but maybe it's just too early for me and I can't get what I'm looking for out of my head easy enough for Google to figure it out so I thought I'd ask here and hope you guys can understand me better.

I know silkworms produce serrapeptase but why is that? I know they only eat mulberry leaves so is it possible it's actually from the leaves? I read it comes from their digestive track so could it be possible it's from the way the leaves break down and not actually from the worm itself? I have a couple mulberry trees in and around my property that I pick the young leaves to feed my girls and also their feeders, they all tend to like the softer young leaves better. I'm not expecting the superworms I feed the leaves to to start producing serrapeptase but could it be possible?

 

[MrSpectrum]

Serrapeptase is produced by a bacterium in the gut of silkworms.
Supers wouldn't produce it unless they had the same bacteria in their guts.
Searches for the bacterium--Serratia marcescens ATCC 21074--along with superworms--produced zero results, so I doubt the supers have it.