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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
16/08/2012 |
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Data da última atualização: |
30/06/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VIANNA, P. C. B.; WALTER, E. H. M.; DIAS, M. E. F.; FARIA, J. A. F.; NETTO, F. M.; GIGANTE, M. L. |
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Afiliação: |
P. C. B. VIANNA, UNOPAR; EDUARDO HENRIQUE MIRANDA WALTER, CTAA; M. E. F. DIAS, UNICAMP; J. A. F. FARIA, UNICAMP; FLÁVIA MARIA NETTO, UNICAMP; M. L. GIGANTE, UNICAMP. |
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Título: |
Effect of addition of CO2 to raw milk on quality of UHT-treated milk. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 95, n. 8, p. 4256-4262, aug., 2012. |
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DOI: |
10.3168/jds.2012-5387 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate the effect of addition of CO2 to raw milk on UHT milk quality during storage. Control milk (without CO2 addition) and treated milk (with CO2 addition up to pH 6.2) were stored in bulk tanks at 4°C for 6 d. After storage, both samples were UHT processed using indirect heating (140°C for 5 s). Samples were aseptically packed in low-density polyethylene pouches and stored in the dark at room temperature. Raw milk was evaluated upon receipt for physicochemical composition, proteolysis, lipolysis, standard plate count, psychrotrophic bacteria, and Pseudomonas spp. counts, and after 6 d of storage for proteolysis, lipolysis, and microbial counts. After processing, UHT milk samples were evaluated for physicochemical composition, proteolysis, and lipolysis. Samples were evaluated for proteolysis and lipolysis twice a month until 120 d. Peptides from pH 4.6-soluble N filtrates were performed by reversed-phase HPLC after 1 and 120 d of storage. A split-plot design was used and the complete experiment was carried out in triplicate. The results were evaluated by ANOVA and Tukey's test. After 6 d of storage, CO2-treated raw milk kept its physicochemical and microbiological quality, whereas the untreated milk showed significant quality losses. A significant increase in proteolysis occurred during 120 d of storage in both treatments, but the increase occurred 1.4 times faster in untreated UHT milk than in CO2-treated UHT milk. In both UHT milks, the proteolysis was a consequence of the action of plasmin and microbial proteases. However, the untreated UHT milk showed higher microbial protease activity than the treated UHT milk. The addition of CO2 to the raw milk maintained the quality during storage, resulting in UHT milk with less proteolysis and possibly longer shelf life, which is usually limited by age gelation of UHT milk. MenosThe objective of this study was to evaluate the effect of addition of CO2 to raw milk on UHT milk quality during storage. Control milk (without CO2 addition) and treated milk (with CO2 addition up to pH 6.2) were stored in bulk tanks at 4°C for 6 d. After storage, both samples were UHT processed using indirect heating (140°C for 5 s). Samples were aseptically packed in low-density polyethylene pouches and stored in the dark at room temperature. Raw milk was evaluated upon receipt for physicochemical composition, proteolysis, lipolysis, standard plate count, psychrotrophic bacteria, and Pseudomonas spp. counts, and after 6 d of storage for proteolysis, lipolysis, and microbial counts. After processing, UHT milk samples were evaluated for physicochemical composition, proteolysis, and lipolysis. Samples were evaluated for proteolysis and lipolysis twice a month until 120 d. Peptides from pH 4.6-soluble N filtrates were performed by reversed-phase HPLC after 1 and 120 d of storage. A split-plot design was used and the complete experiment was carried out in triplicate. The results were evaluated by ANOVA and Tukey's test. After 6 d of storage, CO2-treated raw milk kept its physicochemical and microbiological quality, whereas the untreated milk showed significant quality losses. A significant increase in proteolysis occurred during 120 d of storage in both treatments, but the increase occurred 1.4 times faster in untreated UHT milk than in CO2-treated UHT milk. In both UHT milks, ... Mostrar Tudo |
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Palavras-Chave: |
Bactérias psicrotróficas; Gás carbônico; Leite UHT. |
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Thesagro: |
Proteólise. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02578naa a2200241 a 4500
001 1931404
005 2016-06-30
008 2012 bl --- 0-- u #d
024 7 $a10.3168/jds.2012-5387$2DOI
100 1 $aVIANNA, P. C. B.
245 $aEffect of addition of CO2 to raw milk on quality of UHT-treated milk.
260 $c2012
520 $aThe objective of this study was to evaluate the effect of addition of CO2 to raw milk on UHT milk quality during storage. Control milk (without CO2 addition) and treated milk (with CO2 addition up to pH 6.2) were stored in bulk tanks at 4°C for 6 d. After storage, both samples were UHT processed using indirect heating (140°C for 5 s). Samples were aseptically packed in low-density polyethylene pouches and stored in the dark at room temperature. Raw milk was evaluated upon receipt for physicochemical composition, proteolysis, lipolysis, standard plate count, psychrotrophic bacteria, and Pseudomonas spp. counts, and after 6 d of storage for proteolysis, lipolysis, and microbial counts. After processing, UHT milk samples were evaluated for physicochemical composition, proteolysis, and lipolysis. Samples were evaluated for proteolysis and lipolysis twice a month until 120 d. Peptides from pH 4.6-soluble N filtrates were performed by reversed-phase HPLC after 1 and 120 d of storage. A split-plot design was used and the complete experiment was carried out in triplicate. The results were evaluated by ANOVA and Tukey's test. After 6 d of storage, CO2-treated raw milk kept its physicochemical and microbiological quality, whereas the untreated milk showed significant quality losses. A significant increase in proteolysis occurred during 120 d of storage in both treatments, but the increase occurred 1.4 times faster in untreated UHT milk than in CO2-treated UHT milk. In both UHT milks, the proteolysis was a consequence of the action of plasmin and microbial proteases. However, the untreated UHT milk showed higher microbial protease activity than the treated UHT milk. The addition of CO2 to the raw milk maintained the quality during storage, resulting in UHT milk with less proteolysis and possibly longer shelf life, which is usually limited by age gelation of UHT milk.
650 $aProteólise
653 $aBactérias psicrotróficas
653 $aGás carbônico
653 $aLeite UHT
700 1 $aWALTER, E. H. M.
700 1 $aDIAS, M. E. F.
700 1 $aFARIA, J. A. F.
700 1 $aNETTO, F. M.
700 1 $aGIGANTE, M. L.
773 $tJournal of Dairy Science$gv. 95, n. 8, p. 4256-4262, aug., 2012.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
04/05/2022 |
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Data da última atualização: |
04/08/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
AGUIAR, J. V. G. de; FREITAS, M. V. F.; MORAES, G. S.; MAJOLO, C.; MUNIZ, A. W. |
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Afiliação: |
JOÃO VITOR GOMES DE AGUIAR, Bolsista de Iniciação Científica, Paic/Fapeam/CPAA; MARCOS VINICIUS FARIAS FREITAS, Bolsista de Iniciação Científica, Paic/Fapeam/CPAA; GUSTAVO SARAIVA MORAES, Bolsista de Iniciação Científica, Paic/Fapeam/CPAA; CLAUDIA MAJOLO, CPAA; ALEKSANDER WESTPHAL MUNIZ, CPAA. |
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Título: |
Bactérias solubilizadoras de fosfato de áreas de Terra Mulata e Terra Preta de Índio cultivadas com seringueira e mandioca. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA OCIDENTAL, 18., 2021, Manaus. Anais... Brasília, DF: Embrapa, 2022. |
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Páginas: |
p. 21-22. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo foi isolar bactérias solubilizadoras de fosfato de áreas cultivadas com seringueira e mandioca em Terra Mulata e Terra Preta de Índio. |
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Palavras-Chave: |
Bacillus; Cetrimide ágar. |
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Thesagro: |
Inoculação. |
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Thesaurus NAL: |
Pseudomonas. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1142656/1/XVIII-Jornada-IC-p21a22.pdf
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Marc: |
LEADER 00893nam a2200217 a 4500
001 2142656
005 2022-08-04
008 2022 bl uuuu u00u1 u #d
100 1 $aAGUIAR, J. V. G. de
245 $aBactérias solubilizadoras de fosfato de áreas de Terra Mulata e Terra Preta de Índio cultivadas com seringueira e mandioca.$h[electronic resource]
260 $aIn: JORNADA DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA OCIDENTAL, 18., 2021, Manaus. Anais... Brasília, DF: Embrapa$c2022
300 $ap. 21-22.
520 $aO objetivo foi isolar bactérias solubilizadoras de fosfato de áreas cultivadas com seringueira e mandioca em Terra Mulata e Terra Preta de Índio.
650 $aPseudomonas
650 $aInoculação
653 $aBacillus
653 $aCetrimide ágar
700 1 $aFREITAS, M. V. F.
700 1 $aMORAES, G. S.
700 1 $aMAJOLO, C.
700 1 $aMUNIZ, A. W.
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Embrapa Amazônia Ocidental (CPAA) |
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