Antibiotic reuterin prepd. from Lactobacillus reuteri - has antifungal, antiparasitic, antiviral, anticancer and antibacterial activity

摘要

Antibiotic is produced by placing cells of Lactobacillus reuteri (LR) under conditions suitable for prodn. Pref. process is carried at in the presence of glycerol, and with a reduced oxygen tension. Also claimed is an antibiotic and its derivs., effective in inhibiting Gram-positive and Gram-negative bacteria and the eucaryotic organisms S. cerevisiae and Trypanosoma cruzi, contg., in wt.%, carbon, 48.65%; hydrogen, 8.11%; oxygen, 43.24%; having a mol. wt. of 148g per mole; being soluble in water; nonresistant to heat at pH9 and resistant to proteases and nucleases; and exhibiting characteristic elution with water of 0.01 M H2SO4 between 1,3-propanediol and glycerol on HPLC. The LR produces an antibiotic called reuterin. Reuterin is a broad-spectrum antimicrobial agent. J6 is also effective in preventing virus replication. LR may be added to animal food to optimise the conditions for reuterin prodn. in the gastrointestinal tract. Teuterin inhibits ribonucleotide reductase involved in DNA synthesis and can be used to inhibit the growth of bacteria, yeasts moulds, protoxoa, viruses and neoplastic and normal animal cells Reuterin is also an effective food preservative.