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tomatine

(Science: chemical) An alkaloid that occurs in the extract of leaves of wild tomato plants. It has been found to inhibit the growth of various fungi and bacteria. It is used as a precipitating agent for steroids.

Pharmacological action: antifungal agents, anti-infective agents, indicators and reagents.

Chemical name: beta-D-Galactopyranoside, (3beta,5alpha,22beta,25S)-spirosolan-3-yl O-beta-D-glucopyranosyl-(1-2)-O-(beta-D-xylopyranosyl-(1-3))-O-beta-D-glucopyranosyl-(1-4)-