The Relationship Between Some Physico-Chemical, Microbiological Characteristics and Electrical Conductivity of Milk Stored at Different Temperature

Year 2011, Volume: 8 Issue: 2, 13 - 21, 01.06.2011

B. Kaptan S. Kayışoğlu M. Demirci

Abstract

Keywords

-

The Relationship Between Some Physico-Chemical, Microbiological Characteristics and Electrical Conductivity of Milk Stored at Different Temperature

Abstract

Bu çalışma da, iki farklı depolama sıcaklığında bekletilen sütlerin elektriksel iletkenliği (Eİ), laktik asit, pH ve toplam bakteri içeriği arasındaki ilişki belirlenmiştir. Yapılan çalışma sonucunda farklı sıcaklıkta depolanan sütlerin laktik asit ve toplam bakteri içeriği artarken pH değeri ise azalmıştır. Aynı zamanda çalışmada, bu parametrelerin Eİ ile arasındaki ilişki de araştırılmıştır. Elektriksel iletkenlik ile pH, Eİ ile laktik asit, Eİ ile toplam bakteri arasındaki ilişki istatistiksel olarak önemli bulunmuştur (P

Keywords

Süt elektriksel iletkenlik, toplam bakteri, laktik asit, pH

References

• Anonymous, 2005. Association of official analytical chemists-Official methods of analysis of the association analytical chemists (18th ed.). Washington, DC:
• Anonymous, 1998. Bacteriological analytical manual (8th ed.). Gaithersburg, MD, USA.
• Carcia-Golding, F., M., Giallorenzo, N., Moreno and V., Chang, 1995. Sensor for determining the water content of oil-in-water emülsion by specific admittance measurement. Sensors and Actuators A. 46-47, 337-341.
• Curda, I. and M., Plockova, 1995. Impedance measurement of growth of lactic acid bacteria in dairy cultures with honey addition. Int. Dairy Journal, 5, 727-733.
• Daunoras, J.and A., Knus, 2006. Research into correlation of milk electrical conductivity and bacterial contamination. Electronic and Electrical Engineering. Kaunas: Technologija, 6(70), 95-98.
• Daunoras, J.and A., Knus, 2007. Application of electronicconductivity for evaluation of liquid paramaters. Electronic and Electrical Engineering. Kaunas: Technologija,7(79),37-40.
• Felice, C., J., R. E., Madrid, J., M.,Olivera, V. I., Rotger. and M. E., Valentinuzzi, 1999. Impedance microbiology; quantification of bacteria content in milk by means of capacitance growth curves. Journal of Microbiological Methods, 35, 37-42
• Gelais, D. S., C. P. Champagne, F., Erepmoc and P., Audet, 1995. The use of electrical conductivity to follow acidification od dairy blend. Int. Dairy Journal 5, 427-438.
• Hamana, K., Y., Tura, K., Arakawa and M., Yamamoto, 1992. Detection of subclinical mastitsis by electronic conductivity measurement and California Mastitis Test. Dairy Sci. Abst 54 (2) 1147.
• Lanzanova. M., R., Lodi, G., Mucchetti and E., Neviani, 1992. Sviluppo di batten lattici termofili in latte ultrafiltrato. Sci. Tech. Latt. Casear, 43:241.
• Lanzanova, M., G., Mucchetti and E., Neviani, 1993. Analysis of conductance changes as a growth index of lactic acid bacteria in milk. J. Dairy Sci. 76:20.
• Latrille, E. D., Picque,B., Peret and G., Corrieui, 1992. Characterizing acidification kinetic by measuring pH and elekrical conductivity in batch thermophilic lactic acid fermentations. J. Fermentation and Bioengineering. 74 (1) 32-38.
• Lawton, B.A. and R., Pethig, 1993. Determining the fat content of milk and cream using AC conductivity measurements. Measurement Sci. and Tech. 4, 38-41.
• Mabrook, M. F. and M. C., Petty, 2002. Application of electrical admittance measurements to the quality control of milk. Sensors and Actuators B. 84, 136-141.
• Muchetti, G., M., Gatti and E., Neviani, 1994. Electrical conductivity changes in milk caused by acidificationdetermining factors. J. Dairy Sci. 77 (4) 940-945.
• Neilen, M., H., Deluyker, Y., H. Schukken, and A., Brand, 1992. Electrical conductivity of milk measurement, modifiers and meta analysis of mastitis detection performance. J. Dairy Sci. 75, 606-614
• Neviani, E., A., Veneroni and M. G., Bossi, 1990. Utilizzazione della tecnica conduttimetrica per lo studio della crescita e dell’attiviti metabolica in latte di ceppi appartenenti alla specie Streptococcus thermophilus. Ind. Latte 2:3.
• Neviani, E., M. G., Bossi, F., Brambilla and M., Gatti, 1992. Differentiated count of Streptococcus thermophilus and Lactobacillus delbrueckli subsp bulgaricus in yoghurt using the conductance method, Dairy Sci. Abst. 54 8387.
• Peris C., P., Molina, N., Frenandez, M,. Rodriguez and A.,Torres, 1991. Variation in somatic cell count, California Mastitsi Test and Electrical Conductivity among various fraction of ewe’s Milk. J. Dairy Sci. (74) 1553-1560.
• Renda, V., D., Rysanek and O., Matouskova, 1975. Effect of various factors on the electric conductivity of mixed milk vet Med (Praha) Aug; 20(10):463-9.
• Sims, L.A., P. C. Vasavada, R.R., Hull, R. A., Chandler and H., Marth, 1991. Impedimetric analysis of quality and shelf-life ofmilk pasteurized by a continous microware treatment. J. Dairy Sci. 74, Supp.1.139.
• Suhren, G. and W., Heeschen, 1990. Bacterriological testing by impedance assays. Brief Comunication of the XXIII Int. Dairy Congress, Montreal, October 8-12, Vol.I.239 (447).
• Thijessen, H. 1991. Leitfahigkeite monitoring in der mikrorobiologischen qualitatssicherung. DMZ. Lebensmiddelindustrie und Milchwissenschaft, 111 (126) 794-796.
• Yang ,L. and R., Bashir, 2008. Electrical/electrochemical impedance for rapid detection of foodborne pathogenic bacteria. Biotechnology Advances. 26, 135-150.
• Wong, N. P. 1988. Physical properties of milk. In: Wong, N.P. (Ed.), Fundamentals of Dairy Chem. 3 the ed. Van Nostrand Reinhold Co., New York, NY, p. 409.