STUDIES ON PHYSICO - CHEMICAL PROPERTIES AND·INCIDENCE OF PATHOGENIC ORGANISMS IN VENDORS' MILK OF VARIOUS TAHESILS IN YEOTMAL DISTmCT

Article Id: ARCC5306 | Page : 169-177
Citation :- STUDIES ON PHYSICO - CHEMICAL PROPERTIES AND·INCIDENCE OF PATHOGENIC ORGANISMS IN VENDORS' MILK OF VARIOUS TAHESILS IN YEOTMAL DISTmCT.Asian Journal Of Dairy and Food Research.2006.(25):169-177
N.S.Thakre*, C. D. Khedkar, M. R. Patil, D. N. Bajad and A. R. Sarode.
Address : College of Dairy Technology, Warud (Pusad}-445 204 India

Abstract

Being number one country in milk production it is utmost important to see that the milk and dairy products produced in India meet the laid down/required national/internationai standards regarding the composition and microbiological qualities. The quality of milk vended in ten tahesils of Yeotmal district was investigated with the object to know the compositional parameters and incidence of pathogenic organisms therein. The results obtained on the fat content of vendors' milk showed statistically significant variation in its fat content. The protein content values were significantly different from each other. Moreover T. S. content of vendors' milk revealed the lowest value for Yeotmal tahesil to be 7.62 and the highest 9.84% with an average 8.53%. The acidity of vendors' milk was within the admissible limits. The average pH values of the vendors' milk tested for entire ten tahesils showed the highest pH during winter and the lowest values during summer. The electric conductivity of vendors' milk showed the average electric conductivity value of 104.82 mhos during the rainy season and 99.52 mhos in winter as well as 130.66 mhos in summer. The differences in specific gravity of milk samples during various seasons were found to be Significant. In addition to this the presence of pathogenic/enterotoxigenic organisms in vendors milk was alarming because though the milk was invariably boiled before its consumption their presence was an indication of unhygienic practices prevailing in milk production, handling and distridution.

Keywords

References

  1. Bates, R. G. (1964): Determination of pH, Theory and Practice. John Wiley and Sons, New York. pp. 435.
  2. Dixon, B. (1963) Aust. J. Dairy Techno/. 18:141-144.
  3. Evans, A. C. (1916) J. Infect. Dis., 18:437-444.
  4. Gaunt, S. N. (1980) In : Factors Affecting the Yield and Constituents of Milk. Moore P. C and Rook J. A. F. Internal. Dairy Fed. Doc. 125.
  5. Ghosh, D. N. and Chattoraj, S. B. (1963) Indian J. Publ. Health. 7:4-9.
  6. Grover, S. and Srinivasan, R. A. (1988) Indian J. Dairy Sci. 41:326-330.
  7. Herrington, B. L. et al.,(1972) New York Food Ufe Sci. Bull. 18:1-23.
  8. Indian Standards (1973): Specifications for Apparatus for Determination of M'tIk Fat by Gerber's method. Indian Standards Institute, New Delhi. Part-II:1223.
  9. Indian Standards (1977): Specifications for Apparatus for Determination of Milk Fat by Gerber's method. Indian Standards Institute, NewDelhi...Part-III:1223.
  10. Indian Standards (1982): Method of Test for Determination of Solids- not-fat (SNF) in Milk by the use of lactometer.
  11. Indian Standards Institute, New Delhi. No.lOO83.
  12. Indian Standards Institute .(1981): In: Handbook of Food Analysis Part-XI Dairy Products. Bureau of Inidan Standards, New Delhi pp. 16-27.
  13. Indian Standards Institute (1982): Method of Test for Determination of SNF in Milk by the use of lactometer. Indian Standards Institute, New Delhi pp. 8-11.
  14. IS : 1124 Part-I,1977 IS: 1479,Part- 11,1961IS: 1479-Part I, 1960 IS: 1479-1977, Part-III).
  15. ISO (1995): Procedure for enumeration of Staphylococcus aureus in milk and milk
  16. products.ISO/CD/6888-1(Revised). \
  17. ISO (1985): Procedure for Enumeration,of Salmonella dysenteriae in Milk and Milk Products. ISO/CD/6785.
  18. Indian Standards Institute (1977): Procedure for Enumeration of Coliforms. lSI BookletNo1479 Part-III. Vol. 25, No. 3/4, 2006 177
  19. Lecos, C. W. (1986) FDA Consum. 20:14-17.
  20. Malik, K. (1968): Dairy Sci. Abstr.30:343.
  21. Mathur, M. P; et al (1999): in: Textbook of
  22. Mishra, M.; et al (1977): Indian Vety. J. 54:627-631.
  23. Overman. O. R.; et al (1939) Agr. Expt. Sta. BuJI., 457.
  24. PFA (1976): Prevention of Food Adulteration Rule, Ministry of Health and Family Welfare, New Delhi. pp.77-82.
  25. Reina, L. D etal., (1998) J. Food Prot. 61:1203-1206.
  26. Rook, J. A.F. (1961) Dairy Sci. Abstr. 23:251.
  27. Snedecore G. Wand Cochran, W. G (1967) Statustical Methods oxfond and I B P. Pns, New Dehli
  28. Sommer, H. H. and Miller, P. G. (1940) J. Dairy Sci. 23:405-422.
  29. Tocher, J. E (1925): Vatiation in Composition of Milk, H. M. Stationary Office, London. Dairy Chemistry. lCAR Publishers, New Delhi pp.1-23.

Global Footprints