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摘要: 在20~120 MPa静水压力范围内,研究了压力对鲜牛奶中细菌的生长繁殖的影响。我们发现,在室温及20 MPa静水压下受压5 min后,细菌的生理活性显著降低,其生长繁殖受到抑制,而且生理活性的降低是一种压力非在位效应。Abstract: The effect of pressure on growth and reproductive capacity of bacteria in raw fresh milk is studied in range of hydrostatic pressure from 20 to 120 MPa. The result is following: At room temperature and 20 MPa the raw fresh milk was pressed for 5 minutes then it was return to normal pressure, the physiologic activity of bacteria in the raw fresh milk have a striking reduction, this effect is the pressure effect in no situ. The effect of pressure up to 120 MPa has not obvious difference from that of 20 MPa.
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Key words:
- bacterium /
- physiologic activity /
- pressure inhibition /
- in no situ
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Tamura K, Muramoto Y, Kourai H. Biotech Lett, 1993, 15: 1189. Iwahashi H, Kaul S C, Obuchi K, et al. FEMS Microbiol Lett, 1991, 80: 325.
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