Microbiological quality of refrigerated milk on farms

被引：52

作者：

Arcuri, E. E. ^{[1
]}

Brito, M. A. V. P. ^{[1
]}

Brito, J. R. F. ^{[1
]}

Pinto, S. M. ^{[1
]}

Angelo, F. F. ^{[1
]}

Souza, G. N. ^{[1
]}

机构：

[1] EMBRAPA, BR-36038330 Juiz De Fora, MG, Brazil

来源：

ARQUIVO BRASILEIRO DE MEDICINA VETERINARIA E ZOOTECNIA | 2006年 / 58卷 / 03期

关键词：

milk quality; microbiology; equipment cleaning procedure; standard plate count;

D O I：

10.1590/S0102-09352006000300024

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

The effect of bulk tank and milking machine cleaning procedures (determined from a questionnaire) on bacterial contamination of 48-hour refrigerated milk was examined in 24 herds. Milk samples were analyzed for standard plate count (SPC) and for total coliform, Staphylococcus aureus and Streptococcus agalactiae contamination. Milk samples from 14 herds were cultured for Salmonella and Listeria monocytogenes. Geometrical means of SPC were < 1.0x10(6) UFC/ml in 20 herds, < 7.5x10(5) UFC/ml in 19 herds and < 1.0x10(5) UFC/ml in 11 herds. Geometrical means > 10(3) UFC/ml of total coliforms were observed in seven herds. S. aureus and S. agalactiae were found in 22 and 12 herds, respectively. Salmonella and L. monocytogenes were not found in any of the samples. The use of alkaline and acid detergents plus sanitizing was associated (P < 0.05) with SPC < 1.0x10(5), and the use of either alkoline or acid detergent or sanitizing or no chemical product was associated with SPC > 5.0x10(5) UFC/ml.

引用

页码：440 / 446

页数：7

共 27 条

[1]

ANDIST MJ, 1998, AUSTR J DAIRY TECHNO, V53, P28

[2]

ANDREWS W.H, 1998, BACTERIOLOGICAL ANAL, P501

[3]

[Anonymous], DIARIO OFICIAL UNIAO

[4]

Boor K. J., 1997, Dairy, Food and Environmental Sanitation, V17, P714