Quality of water used in cleaning of bulk raw milk tanks: implementation and evaluation of water chlorination to ensure the product quality

Authors

  • Joaquim Mário Neiva Lamas Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais - Câmpus Rio Pomba- Rio Pomba- MG- Brasil
  • Maurilio Lopes Martins Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais - Câmpus Rio Pomba- Rio Pomba- MG- Brasil
  • Franklin Júnior Moreira da Silva Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais - Câmpus Rio Pomba- Rio Pomba- MG- Brasil
  • Eliane Maurício Furtado Martins Professora do Instituto Federal do Sudeste de Minas Gerais, campus Rio Pomba, Rio Pomba - MG
  • Cristiano Amancio Vieira Borges Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Gado de Leite
  • Marcelo Henrique Otenio Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Gado de Leite

DOI:

https://doi.org/10.14295/2238-6416.v70i5.449

Keywords:

water treatment, chlorination, expansion tank, quality of milk

Abstract

Water is the most important and indispensable resource to the maintenance of life in the Earth and it is not different in the farms, once it is a drink for the animals. Its use is also important in activities related to milking. The objective of this work was to evaluate the influence of chlorination of water used in 18 properties located in the Zona da Mata of Minas Gerais, Brazil, on the Somatic Cell Count (SCC) and Total Bacteria Count (TBC) of raw milk. Water samples were collected from hoses used for washing of individual and collective storage tanks of raw milk. In addition, samples of milk were collected for analysis. Chlorination of water did not influence their physicochemical parameters. Chlorinated water samples showed positive results in reducing the Most Probable Number of total and fecal coliforms, however, no significant reduction (p > 0.05) in their number of heterotrophic bacteria was observed. Milk composition was not affected by water chlorination and no significant reduction (p > 0.05) counts of SCC and TBC due to chlorination was found. Therefore, even the water used in cleaning the tanks not presenting good quality, being in disagreement with the Brazilian law, this did not influence the quality of refrigerated raw milk, which has many sources of contamination in the studied region.

Author Biographies

  • Joaquim Mário Neiva Lamas, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais - Câmpus Rio Pomba- Rio Pomba- MG- Brasil
    Mestre em Ciência e Tecnologia do Leite e Derivados – Técnico em Alimentos e Laticínios do Instituto Federal do Sudeste de Minas Gerais, campus Rio Pomba, Rio Pomba – MG
  • Maurilio Lopes Martins, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais - Câmpus Rio Pomba- Rio Pomba- MG- Brasil
    Tecnólogo em Laticínios, Bacharel em Ciência e Tecnologia de Laticínios, Mestre e Doutor em Microbiologia Agrícola pela Universidade Federal de Viçosa (UFV). Foi funcionário do Departamento de Garantia de Qualidade da Cooperativa Central de Laticínios do Estado de São Paulo (Leite Paulista). Foi bolsista de doutorado Sanduíche (SWE) do CNPq, desenvolvendo o projeto de tese relacionado ao mecanismo de quorum sensing, no Laboratório de Microbiologia da Universidade de Zurique (Suíça) e bolsista de pós-doutorado júnior do CNPq. Atualmente, é professor do Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais, câmpus Rio Pomba atuando nas áreas de processamento de leite e derivados, microbiologia de alimentos, microbiologia do leite e derivados, segurança alimentar, gerenciamento ambiental, inovação e propriedade intelectual. É tutor do grupo PET Ciências Agrárias
  • Franklin Júnior Moreira da Silva, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais - Câmpus Rio Pomba- Rio Pomba- MG- Brasil
    Bacharel em Ciência e Tecnologia de Alimentos – Instituto Federal do Sudeste de Minas Gerais, campus Rio Pomba, Rio Pomba – MG.
  • Eliane Maurício Furtado Martins, Professora do Instituto Federal do Sudeste de Minas Gerais, campus Rio Pomba, Rio Pomba - MG
    Mestre em Microbiologia Agrícola, Doutora em Ciência e Tecnologia de Alimentos e professora do Instituto Federal do Sudeste de Minas Gerais, campus Rio Pomba,
  • Cristiano Amancio Vieira Borges, Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Gado de Leite
    Pesquisador da Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Gado de Leite
  • Marcelo Henrique Otenio, Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Gado de Leite

    Pesquisador da Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA Gado de Leite

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Published

2016-11-10

Issue

Vol. 70 No. 5 (2015)

Section

Artigos/Articles

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How to Cite

Lamas, J. M. N., Lopes Martins, M., Silva, F. J. M. da, Martins, E. M. F., Borges, C. A. V., & Otenio, M. H. (2016). Quality of water used in cleaning of bulk raw milk tanks: implementation and evaluation of water chlorination to ensure the product quality. Journal of Candido Tostes Dairy Institute, 70(5), 239-253. https://doi.org/10.14295/2238-6416.v70i5.449