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Process for production of tetracycline

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1. A PROCESS FOR THE PRODUCTION OF TETRACYCLINE WHICH COMPRISES AEROBICALLY GROWING A CULTURE OF A CHLORTETRACYCLINE-PRODUCING SPECIES OF STREPTOMYCES SELECTED FROM THE GROUP CONSISTING OF STREPTOMYCES AUREOFACIENS AND STREPTOMYCES VIRIDIFACIENS IN AN AQUEOUS CARBOHYDRA TE SOLUTION CONTAINING AS ORGANIC SOURCES OF NITROGEN FROM 0.1 TO 5.0 PERCENT BY WEIGHT OF SOYBEAN MEAL, FROM 0.1 TO 5.0 PERCENT BY WEIGHT OF SUBSTANTIALLY OIL-FREE COTTONSEED ENDOSPERM FLOUR, FROM 0.1 TO 5.0 PERCENT BY WEIGHT OF CORN OIL MEAL AND FROM 0.1 TO 2.0 PERCENT BY WEIGHT OF YEAST, SAID FERMENTATION MEDIUM BEING UNDECHLORINATED AND SAID TETRACYCLINE IN THE FINAL FERMENTATION BROTH COMPRISING GREATER THAN 90 PERCENT OF THE ANTIBIOTIC ACTIVITY AND BEING PRESENT IN THE AMOUNT OF AT LEAST 2500 MCG./ML.
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