Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Asian Journal of Scientific Research
  Year: 2008 | Volume: 1 | Issue: 5 | Page No.: 532-538
DOI: 10.3923/ajsr.2008.532.538
Physicochemical and Microbiological Quality of Raw, Pasteurized and UHT Milks in Shops
Z.A. Shojaei and A. Yadollahi

Abstract:
This study was conducted to evaluate physicochemical and microbiological quality of raw, pasteurized and UHT milks in Shahrekord (Iran) in the spring 2005. All types of milk samples were collected from different part of the city were selected and in three consequent periods. The physicochemical parameters including fat, protein, temperature, Titrable Acidity (TA), Solid Not Fat (SNF) and Specific Gravity (SG) were determined. Additionally, the microbiological evaluations were based on the total bacterial count, total coliform count and Escherichia coli (E. coli). The results (mean values of 81 measurements) for raw milk samples showed fat content 2.6, protein 3.5, T 18°C, TA 0.17, SNF 7.71 and SG 1.030 and total bacterial count 13x106 cfu mL-1, total coliform count 1300 cfu mL-1 and E. coli positive. Those values for the pasteurized milks were the fat content 2, protein 3.5, T 15°C, TA 0.16, SNF 7.5 and SG 1.033 and total bacterial count 71x104 cfu mL-1, total coliform count 800 cfu mL-1 and E. coli positive. Furthermore, the values of UHT milks were the fat content 2.8, protein 3.1, T 19°C, TA 0.15, SNF 8.3, SG 1.029, total bacterial count 71 cfu mL-1, total coliform count 9 cfu mL-1 and E. coli negative. Statistical analysis of data revealed that there is significant difference between results of different shops at the level of p<0.01 which implies the contamination of raw and pasteurized milk is above standards.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Microbiological Quality and Safety of Fluid Milk Marketed in Cairo and Giza Governorates
  •    Bacterial Quality of Informally Marketed Raw Milk in Kenitra City, Morocco
  •    Extent of Water Adulteration and its Influence on Physical Characteristics of Market Milk
  •    Microbial Assessments of Bulk Milk Before and After Pasteurization in Two Different Dairy Farms in Zaria, Nigeria
How to cite this article:

Z.A. Shojaei and A. Yadollahi, 2008. Physicochemical and Microbiological Quality of Raw, Pasteurized and UHT Milks in Shops. Asian Journal of Scientific Research, 1: 532-538.

DOI: 10.3923/ajsr.2008.532.538

URL: https://scialert.net/abstract/?doi=ajsr.2008.532.538

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

       

       

Curve Bottom