A water-soluble antibiotic substance having anti-fungal, anti-viral, anti-nematodal and anti-bacterial properties is elaborated by the organism Bacillus uniflagellatus, sp. n., (ATCC 15134).

Strains of Actinoplanes produce an antibiotic substance upon aerobic cultivation. The antibiotic is sparingly soluble in water with a pronounced band in the UV absorption spectrum at 307 nm. Methods for preparing and using the antibiotic, both therapeutically and for promoting livestock growth, and composition adapted for these uses are described.

Strains of Actinoplanes produce an antibiotic substance upon aerobic cultivation. The antibiotic is soluble in water with a pronounced band in the UV absorption spectrum at 267 nm. Methods for preparing and using the antibiotic, both therapeutically and for promoting livestock growth, and composition adapted for these uses are described.

A novel Antibiotic C-15003 is produced by cultivating a microorganism of the genus Nocardia. The Antibiotic C-15003 is useful as an antifungal agent or an antiprotozoan agent.

The present invention relates to two recombinant colicin expression systems, one utilizing a yeast expression system that produces a protein that is inexpensive to purify, and the other utilizing a plasmid expression system to be used as a probiotic culture. The recombinant colicins provide effective alternatives to conventional antibiotics and may be used to improve the efficiency of pork production, and the safety of its products.

Novel antibiotic stalobacins H-1 and I-1 having physico-chemical properties as shown in Table 4 are provided, which are excellent antibiotics showing marked effects on Gram-positive bacteria.

This disclosure describes new antibiotic Cytosporacin having the structure: ##STR1## The invention relates to a new antibiotic designated Cytosporacin, to its production by fermentation, to methods for its recovery and concentration from the crude solutions, and to process for its purification. The invention includes within its scope the agent in dilute form, as a crude concentrate, and in pure form. The invention also relates to the use of the compound according to the invention in antimicrobia...

The present invention relates to carbapenems and provides a compound of the formula (I): ##STR00001## or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein: R.sup.1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R.sup.2 is hydrogen or C.sub.1-4alkyl; R.sup.3 is hydrogen or C.sub.1-4alkyl; R.sup.4 and R.sup.5 are the same or different and are selected from hydrogen, halo, cyano, C.sub.1-4alkyl, nitro, hydroxy, carboxy, C.sub.1-4alkoxy, C.sub.1-4alkoxycarbonyl, am...

An antibiotic toothpaste is formulated with an inorganic antibiotic metal containing composition that is present in an amount effective to impart substantial antimicrobial activity within the normal time for brushing teeth.

The present invention relates to carbapenems and provides a compound of the formula (I): ##STR1## or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein: R.sup.1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R.sup.2 is hydrogen or C.sub.1-4 alkyl; R.sup.3 is hydrogen or C.sub.1-4 alkyl; R.sup.4 and R.sup.5 are the same or different and are selected from hydrogen, halo, cyano, C.sub.1-4 alkyl, nitro, hydroxy, carboxy, C.sub.1-4 alkoxy, C.sub.1-4 alkoxycarbonyl, a...