Quality parameters of curd
DOI:
https://doi.org/10.5219/742Keywords:
milk, curd firmness, volume of rennet, microbial rennetAbstract
The aim of this work was measurement of the curd firmness prepared by different volume of rennet solution and comparison of differences of curd firmness between these volumes. Further, it was observed the influence of different volumes of rennet up to thevolume of whey release, curd firmness, dry matter of curd and dry matter of whey. The composition of milk was determined according ISO and Czech state standard. Dry matter content (%) was determined by gravimetry, in drying oven at 102 °C to constant weight (ISO 6731:2010), the protein content (%) by Kjeldahl´s method (EN ISO 8968-1:2002), content of fat (%) by Gerber´s acidobutyrometric method (ISO 2446:2008), content of lactose by polarimetry, titratable acidity by titration Soxhlet-Henkel method, pH and calcium content in milk (g.L-1) was determined by complexometric titration with flueroxone as an indicator according to Czech state standart No 57 0530. For coagulation was used microbial rennet CHY-MAXRM 200. There were measured: curd firmness, rennet coagulation time, curd quality, volume of released whey, weight of curd, dry matter of curd and dry matter of whey. Different volumes of rennet solution had influence on curd firmness. Curd firmness (volume of rennet solution) had no significant influence on curd quality (five grade scale). Curd firmness had influence on volume of whey release (mL) out of the curd. With the increasing curd firmness s increased the volume of whey released from the curd. The volume of rennet solution had an influence on weight of curd. Curd dry matter raised with higher volume of rennet solution. Volume of added rennet solution had no statistically significant effect on the change of whey dry matter.
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Bittante, G. 2011. Modeling rennet coagulation time and curd firmness of milk. Journal of Dairy Science, vol. 94, no. 12, p. 5821-5832. https://doi.org/10.3168/jds.2011-4514 DOI: https://doi.org/10.3168/jds.2011-4514
Bujko, J., Kocman, R., Žitný, J., Trakovická, A., Hrnčár, C. 2011. Analyse of trans of milk production in dairy cows. Potravinarstvo, vol. 5, no. 1, p. 5-9. Burgess, K. J. 1978. Measurement of the Firmness of Milk Coagulum. Irish Journal of Food Science and Technology, vol. 2, no. 2, p. 129-134. https://dx.doi.org/10.5219/93 DOI: https://doi.org/10.5219/93
Czech state standart No 57 0530:1974. Methods for testing of milk and milk products (Metody zkoušení mléka a tekutých mléčných výrobků.
Djurić, M., Carić, M., Milanović, S., Tekić, M., Panić, P. 2004. Developmentofwhey-basedbeverages. European Food Research and Technology, vol. 219, no. 4, p. 321-328. DOI: https://doi.org/10.1007/s00217-004-0950-1
Donato, L., Guyomarc'h, F. 2009. Formation and properties of the whey protein/κ-caseincomplexes in heated skim milk - A review. Dairy science & technology, vol. 89, no. 1, p. 3-29. https://doi.org/10.1051/dst:2008033 DOI: https://doi.org/10.1051/dst:2008033
EN ISO 8968-1:2002. Milk and milk products - Determination of nitrogen content. Part 1, Kjeldahl method and crude protein calculation.
Fox, F., McSweeney, P. L. H., Cohan, T. M., Guinee, T. P. 2004. Cheese Chemistry, Physics and Microbiology. 3rd ed., Oxford : Elsevier Ltd. 617 p. ISBN-13: 978-0122636523.
Fox, P. F., Guinee, T. P., Cogan, T. M., McSweeney, P. L. H. 2000. Fundamentals of cheese science. Maryland : AspenPublishers. 638 p. ISBN 0834212609.
ISO 2446:2008. Milk - Determination of fat content.
ISO 6731:2010. Milk, cream and evaporated milk - Determination of total solids content.
Krkošková, B. 1986. Textúra potravín (Food texture) . Bratislava : Alfa - Vydavateľstvo technickej a ekonomickej literatúry. 194 p.
Kuchtík, J., Šustová, K., Urban, T., Zapletal, D. 2008. Effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling in East Friesian ewes. Czech Journal of Animal Science, vol. 53, no. 2, p. 55-63. DOI: https://doi.org/10.17221/333-CJAS
López, M. B., Jordán, M. J., Granados, M. V. Fernández, J. C., Castillo, M., Laencina, J. 1999. Viscosity ganges during rennet coagulation of Murciano-Granadina goat milk. International Journal of Dairy Technolgy, vol. 52, no. 3, p. 102-106. https://doi.org/10.1111/j.1471-0307.1999.tb02081.x DOI: https://doi.org/10.1111/j.1471-0307.1999.tb02081.x
Lucey, J. A. 2002. Formation and physical properties of milk protein gels. Journal of Dairy Science, vol. 85, no. 2, p. 281-294. https://doi.org/10.3168/jds.S0022-0302(02)74078-2 DOI: https://doi.org/10.3168/jds.S0022-0302(02)74078-2
McMahon, D. J., Brown, R. J. 1982. Evaluation of Formagraph for Comparing Rennet Solutions. Journal of Dairy Science, vol. 65, no. 8, p. 1639-1642. https://doi.org/10.3168/jds.S0022-0302(82)82390-4 DOI: https://doi.org/10.3168/jds.S0022-0302(82)82390-4
Nájera, A. I., De Renobales, M., Barron, L. J. R. 2003. Effects of pH, temperature, CaCl2 and enzyme concentrations on the rennet-clotting properties of milk: a multifactorial study. Food Chemistry, vol. 80, no. 3, p. 345-352. https://doi.org/10.1016/S0308-8146(02)00270-4 DOI: https://doi.org/10.1016/S0308-8146(02)00270-4
Payne, F. A., Hicks, C. L., Shen, P. S. 1993. Predicting optimal cutting time of coagulating milk using difuse reflectance. Journal of Dairy Science, vol. 76, no. 1, p. 48-61. https://doi.org/10.3168/jds.S0022-0302(93)77322-1 DOI: https://doi.org/10.3168/jds.S0022-0302(93)77322-1
Pretto, D., Kaart, T., Vallas, M., Jõudu, I., Henno, M., Ancilotto, L., Cassandro, M., Pärna, E. 2011. Relationships between milk coagulation property trans analyzed with different methodologies. Journal of Dairy Science, vol. 94, no. 9, p. 4336-4346. https://doi.org/10.3168/jds.2011-4267 DOI: https://doi.org/10.3168/jds.2011-4267
PMid:21854906
Pytel, R., Šustová, K., Kumbár, V., Nedomová, Š. 2016. A comparison of determination of the rennet coagulation properties of bovine milk. Potravinarstvo, vol.10, no. 1, p. 366-371. https://doi.org/10.5219/604 DOI: https://doi.org/10.5219/604
Roginski, H., Fuquay, J. W., Fox, P. 2003. Encyclopedia of Dairy Sciences: Volume 1. New York : Academic Press, 557 p. ISBN-13: 0122272358.
Sbodio, O. A., Tercero, E. J., Coutaz, R., Revelli, G. R. 2006. Effect of rennet and sodium chloride concentration on milk coagulation properties. Ciencia y Technologia Alimentaria, vol. 5, no. 3, p. 182-188. https://doi.org/10.1080/11358120609487690 DOI: https://doi.org/10.1080/11358120609487690
Spreer, E. 1998. Milk and dairy product technology. New York : CRC Press. 483 p. ISBN 0-8247-0094-5.
Storry, J. E., Ford, G. D. 1982. Development of coagulum firmness in renneted milk - a two-phase process. Journal of Dairy Reserch, vol. 49, no. 2, p. 343-346. https://doi.org/10.1017/S0022029900022457 DOI: https://doi.org/10.1017/S0022029900022457
Teplý, M., Mašek, J., Havlová, J. 1976. Syřidla živočišná a mikrobiální (Annimal and microbial rennets). Praha : SNTL - Nakladatelství technické literatury. 287 p.
Walstra, P., Wouters, J. T. M., Geurts, T. J. 2006. Dairy science and technology. 2nd ed. BocaRaton : CRC Press - Taylor & Francis. 782 p. ISBN-13:978-0-8247-2763-5.
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