CONSIDERABLE doubt exists as to whether silk fibroin (Bombyx mori) contains a small amount of cystine or whether this amino-acid is entirely absent. Apart from any biological significance ...

But why is it so expensive? Silk is the product of the domesticated silkworm, Bombyx mori. The caterpillars eat constantly. They're fed mulberry leaves five times a day. After 45 days of munching ...

“Like the Bombyx mori and its mulberry bush ... on humans for everything from feeding to propagating.” • All silkworm silk is ...