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Test on Chitosan Against Cow S.agalactiae in Vitro
Author(s): Lu Zhenxiang, Shang Changfa, Song Changjing
Pages: 39
Year: 2009
Issue:
1
Journal: China Dairy Cattle
Keyword: 壳聚糖; 乳房炎; 病原菌; 抑菌作用;
Abstract: 将2g壳聚糖加入一定量的蒸溜水和乙酸配成2%(20g/L)的壳聚糖原液,再用蒸馏水稀释至10g/L、5g/L、2.5g/L、1.25g/L和0.625g/L,同时以相应浓度醋酸溶液作为对照,然后用圆纸片扩散试验对奶牛无乳链球菌、大肠杆菌、金黄色葡萄球菌、绿脓杆菌进行体外抑菌试验.结果表明:壳聚糖对上述4种细菌的生长均有不同程度的抑制作用,且随着壳聚糖浓度的降低,对细菌生长繁殖的抑制作用相应减弱.
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