Antibiotics SF-1771 substance and SF-1771-B substance as well as the
production of these substances
    5.
    发明授权
    Antibiotics SF-1771 substance and SF-1771-B substance as well as the production of these substances 失效
    抗生素SF-1771物质和SF-1771-B物质以及这些物质的生产

    公开(公告)号:US4169140A

    公开(公告)日:1979-09-25

    申请号:US736143

    申请日:1976-10-27

    CPC分类号: C12P1/06

    摘要: A new antibiotic SF-1771 substance is produced by cultivating a new strain, Streptomyces toyocaensis SF-1771, in a liquid culture medium under aerobic conditions. This antibiotic may be isolated from the fermentation broth by treating the broth filtrate with a synthetic adsorbent resin for adsorption of the active compound and eluting the resin with an aqueous alcohol or aqueous acetone, followed by chromatographic purification. SF-1771 substance is a copper-containing antibiotic which shows antibacterial activity against Escherichia coli, Salmonella typhi, Pseudomonas aeruginosa, Staphylococcus aureus and Bacillus subtilis. Removal of the copper component from SF-1771 substance by treatment with hydrogen sulfide, an alkali metal sulfide or a copper-chelating agent gives SF-1771-B substance containing no copper component which shows antibacterial activity as high as but a toxicity lower than SF-1771 substance.

    摘要翻译: 通过在有氧条件下在液体培养基中培养新的菌株Streptomyces toyocaensis SF-1771来生产新的抗生素SF-1771物质。 通过用合成吸附剂树脂处理肉汤滤液以吸附活性化合物并用含水醇或丙酮水溶液洗脱树脂,然后进行色谱纯化,从发酵液中分离出该抗生素。 SF-1771物质是对大肠杆菌,伤寒沙门氏菌,铜绿假单胞菌,金黄色葡萄球菌和枯草芽孢杆菌具有抗菌活性的含铜抗生素。 通过用硫化氢,碱金属硫化物或铜螯合剂处理从SF-1771物质中除去铜成分得到不含铜成分的SF-1771-B物质,其抗菌活性高于但低于SF的毒性 -1771物质。