Survival of Escherichia coli O157:H7, nitrite content and sensory acceptance of low-salt Chinese paocai fermented by screened lactic acid bacteria

Summary Starter cultures of low-salt Chinese paocai were screened from 135 lactic acid bacteria (LAB) by evaluating their antimicrobial activity and growth characteristics. Furthermore, the survival of Escherichia coli O157:H7, nitrite contents and sensory acceptability of the starter-fermented paocai were evaluated. LAB BC92, which was identified as Lactobacillus pentosus, was used as a starter culture to produce paocai. In comparison with naturally fermented paocai, the disappearance time of E. coli O157:H7 in starter-fermented paocai decreased from 5.29 to 3.82 days, and the maximum nitrite content decreased from 11.73 to 8.64 mg kg−1, and the nitrite reduction time decreased from 4 to 3 days. In addition, starter fermentations were able to accelerate the flavour formation and shorten the paocai ripening period. The paocai that was fermented naturally and fermented by BC92 all had good sensory acceptance, and no significant difference (P > 0.05) was observed.

[1]  Wang Yong,et al.  Microbial safety and sensory quality of instant low-salt Chinese paocai , 2016 .

[2]  H. Paik,et al.  Investigation of reduction and tolerance capability of lactic acid bacteria isolated from kimchi against nitrate and nitrite in fermented sausage condition. , 2014, Meat science.

[3]  M. Xie,et al.  Starter culture fermentation of Chinese sauerkraut: Growth, acidification and metabolic analyses , 2014 .

[4]  B. Popkin,et al.  Understanding the patterns and trends of sodium intake, potassium intake, and sodium to potassium ratio and their effect on hypertension in China. , 2014, The American journal of clinical nutrition.

[5]  Y. Vander Heyden,et al.  The occurrence of N-nitrosamines, residual nitrite and biogenic amines in commercial dry fermented sausages and evaluation of their occasional relation. , 2014, Meat science.

[6]  L. De Vuyst,et al.  Applicability of Lactobacillus plantarum IMDO 788 as a starter culture to control vegetable fermentations. , 2013, Journal of the science of food and agriculture.

[7]  M. Xie,et al.  Dynamic changes of lactic acid bacteria flora during Chinese sauerkraut fermentation , 2012 .

[8]  Min Wang,et al.  Modeling in vitro gas production kinetics: Derivation of Logistic–Exponential (LE) equations and comparison of models , 2011 .

[9]  Jane M. Caldwell,et al.  Survival of Escherichia coli O157:H7 in cucumber fermentation brines. , 2011, Journal of food science.

[10]  H. Chang,et al.  Growth inhibition of foodborne pathogens by kimchi prepared with bacteriocin-producing starter culture. , 2011, Journal of food science.

[11]  M. E. Doyle,et al.  Sodium Reduction and Its Effect on Food Safety, Food Quality, and Human Health. , 2010, Comprehensive reviews in food science and food safety.

[12]  W. Xue,et al.  Effect of inoculating lactic acid bacteria starter cultures on the nitrite concentration of fermenting Chinese paocai , 2008 .

[13]  Sabrina Gioria,et al.  Toward metrological traceability for DNA fragment ratios in GM quantification. 1. Effect of DNA extraction methods on the quantitative determination of Bt176 corn by real-time PCR. , 2007, Journal of agricultural and food chemistry.

[14]  H. Raghuram,et al.  Donald Redfield Griffin , 2005 .

[15]  S. Kawasaki,et al.  Survival of Escherichia coli O157:H7, Salmonella enteritidis, Staphylococcus aureus, and Listeria monocytogenes in Kimchi. , 2004, Journal of food protection.

[16]  P. Saris,et al.  Formation of nisin, plant-derived biomolecules and antimicrobial activity in starter culture fermentations of sauerkraut , 2004 .

[17]  Deepanjan Majumdar,et al.  The Blue Baby Syndrome , 2003 .

[18]  M.A.J.S. van Boekel,et al.  On the use of the Weibull model to describe thermal inactivation of microbial vegetative cells , 2002 .

[19]  S. Torriani,et al.  Differentiation of Lactobacillus plantarum,L. pentosus, and L. paraplantarum by recA Gene Sequence Analysis and Multiplex PCR Assay with recA Gene-Derived Primers , 2001, Applied and Environmental Microbiology.

[20]  T. Ishibashi,et al.  N-nitroso compounds in two nitrosated food products in southwest Korea. , 1994, Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association.