# Silk fibroin (recombinant biomaterials)

Upstream — fermentation & cell culture — Recombinant silk fibroin and spider-silk proteins — expressed via microbial precision fermentation, transgenic Bombyx mori silkworms (MaSp1/MaSp2, Kraig Biocraft), or extracted from Bombyx mori cocoons — for biomaterials.

Source: https://en.bioecon.ru/market/upstream/silk-fibroin-recombinant-biomaterials/