Research Article

Comparative Study of ɛ-Polylysine or Nisin Inhibition Kinetics of Lactococcus lactis and Spoilage Microorganisms in Fresh Flammulina velutipes Fruiting Bodies

Table 1

Growth parameters of L. lactis estimated by the reparameterized Gompertz model.

Temperature4°C16°C20°C4°C16°C20°C

ɛ-Polylysine (g/kg)0.000.150.300.000.150.300.000.150.30Nisin (g/kg)0.000.100.200.000.100.200.000.100.20
Y0 (ln CFU/g)7.0106.6146.1118.2287.6357.1375.5976.7405.901Y0 (ln CFU/g)7.1316.4586.2316.9416.6056.2806.9156.4236.099
L95CI6.5886.3895.9207.5717.0096.6034.3916.4395.289L95CI6.9126.2106.1125.3255.4735.5415.5245.0455.144
U95CI7.5316.8396.3028.8848.2617.6716.8027.0406.513U95CI7.3516.7076.3508.5577.7387.0208.3067.8007.053
Ymax (ln CFU/g)15.79111.88311.04318.96319.00718.60417.97117.17616.968Ymax (ln CFU/g)16.10712.95911.54518.88018.93318.74618.22418.12018.284
L95CI15.36011.60510.72418.49918.50718.05416.89816.93516.394L95CI15.91312.62611.36417.91618.06118.09917.53117.23717.297
U95CI16.22212.16111.36319.42819.50719.15319.04517.41717.541U95CI16.30113.29211.72519.84419.80619.39418.91719.00419.272
µmax (h−1)0.0740.0340.0290.2370.2080.1840.5350.5360.594µmax (h−1)0.1060.0440.0350.4090.2700.2380.8940.5230.465
L95CI0.0580.0280.0240.1970.1800.1630.4320.5020.505L95CI0.0930.0370.0320.2050.1970.1950.6150.4010.376
U95CI0.0900.0390.0340.2780.2360.2060.6370.5710.683U95CI0.1180.0510.0380.6140.3430.2811.1730.6450.553
λ (h)69.24063.43576.90411.56311.45013.3093.4743.7484.703λ (h)67.69370.48776.81611.15912.80916.7323.5493.6485.419
L95CI53.91547.85261.1126.1365.8777.8660.3302.7472.707L95CI61.58657.33468.7041.7454.40110.3320.5760.8361.631
U95CI84.56679.01892.69616.98917.02418.7527.2794.7486.699U95CI73.80183.63984.92820.57421.21823.1328.3068.1329.207