antibiotic substances meaning in English

抗菌物质

Earthworms may produce antibiotic substances .
蚯蚓可以产生抗菌物质。
In this experiment , some conclusions were drawn . after being steriled , explants were treated by using antibiotic substance solution with a level of l00mg / l for 30 min , the non - contamination rate was up to 80 % - 92 %
实验结果表明，在外植体表面灭菌后使用100mg l的抗生素溶液处理30min ，未污染率达到80 - 92 ，效果最为理想。
Then , tlc was used to purify them , and antibiotic experiments were made to define which was the main antibiotic substance . results showed , orange pigment was the major antibiotic substance , and it could inhibit bacteria , but had no effect on yeasts and algae . the diameter of the inhibition zone was directly proportional to the value of absorption of orange pigment
( 2 )利用吸附柱分离三种色素，并用tlc法纯化，刮取相应的色素点， 70乙醇溶解，浓缩，进行抑菌实验，证实橙色素是主要的抑菌物质，对细菌具有较强的抑制效果，其抑菌性与其吸光度呈正比变化，橙色素对酵母菌和霉菌无抑制效果。