28 May 2008

The secret behind silkworm’s hardy stomachs

Silkworms have a unique ability to eat toxic mulberry leaves without feeling ill, and scientists have come one step closer to understanding why: silkworms contain a special digestive enzyme that is not affected by mulberrys toxic chemicals. Mulberry leaves contain an extremely high amount of alkaloids that inhibit enzymes that break down sucrose (sugar), and thus are potentially quite toxic. However, one type of sucrase called beta-fructofuranosidase is not affected by these alkaloids........

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