{'fraction_non_alphanumeric': 0.046511627906976744, 'fraction_numerical': 0.04302325581395349, 'mean_word_length': 5.020979020979021, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Optimization of bacitracin production by Bacillus licheniformis B5.

Production of the polypeptide antibiotic bacitracin by a newly isolated Bacillus licheniformis B5 strain, using a laboratory medium was optimized. A medium of the following conditions was obtained: 1.5% glycerol as carbon source, 0.05% glutamic acid as nitrogen source, 1.43% inorganic phosphate, 0.0025% magnesium sulfate, with an initial pH of 7.5. Culture was incubated at 37 degrees C for 48 h. The bacitracin productivity was about 174.2 units mL(-1). Bacitracin antibiotic was also produced using immobilized cells of the B5 isolate in different immobilization supports (7.5% polyacrylamide, 4% sodium alginate beads and 2% agar). It was found that the highest bacitracin production rate (192 units mL(-1)) was obtained when using 7.5% polyacrylamide gel as an immobilization material.