The organic solvent extract of lichen had no inhibition on bacillus subtilis and their water extract had no antibacterial effect.
地衣有机溶剂提取液对枯草芽孢杆菌无抑制作用，其水提液无任何抑菌作用。
Preferably, the antigenicity-reducing component is an extract of an Olea or a Ligustrum plant extracted with water or an organic solvent.
优选地，所述抗原性降低成分 是用水或有机溶剂从木犀榄属或女真属植物中提取的提取物。
The extract can be obtained by being extracted by water, organic solvent or hydrous organic solvent and being refined.
该提取物可经水、有机溶剂或含水有机溶剂经提取、精制后获得。
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