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tihommey(金币+18, 翻译EPI+1): 3Q 2011-03-05 15:20:00
Because Gram-positive bacteria and Gram-negative bacteria have structure differences in their cell walls ,antibacterial effect of the X on the Gram-positive bacteria such as Staphylococcus aureus is obvious, while on the Gram-negative bacteria there was none of the effect.
Body temperature of humans and pigs are both 38 ℃ or so. Compared to the optimum temperature of X, Y's optimal temperature is closer to the body temperature of pigs and humans. In addition, the internal acidic environment in the human body makes the Y other than X suitable for use as food and feed additives. |
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