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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
21/05/2024 |
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Data da última atualização: |
21/05/2024 |
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Autoria: |
GREEN, M. L.; FOSTER, P. M. D. |
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Afiliação: |
MARGARET L. GREEN. |
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Título: |
Comparison of the rates of proteolysis during ripening of Cheddar cheeses made with calf rennet and swine pepsin as coagulants. |
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Ano de publicação: |
1974 |
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Fonte/Imprenta: |
Journal of Dairy Research, v. 41, n. 2, p. 269-282, Jun. 1974. |
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DOI: |
https://doi.org/10.1017/S0022029900019683 |
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Idioma: |
Inglês |
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Conteúdo: |
The rates of proteolysis during ripening were followed in cheeses made with either calf rennet or swine pepsin and either starter or δ-gluconic acid lactone (GAL) as a replacement for the starter. A gel-filtration column technique and starch-gel electrophoresis were used for analysis, and bacterial counts were made on all samples. Proteolysis was faster in cheeses made using GAL than in those made using starter and also slightly faster in GAL cheeses made with swine pepsin than in those made with rennet. Further, it was considerably slower in starter-containing cheeses made with swine pepsin than in those made with rennet. It is suggested that these differences were due to the much greater rate of development of acidity in cheeses made with GAL than in those made with starter, which resulted in more of the coagulant being incorporated into the curd in an active state. The rate of proteolysis in starter-containing cheeses appeared to follow a characteristic course, being initially slow, then markedly increasing with a later slow decline. It is suggested that the increase in the rate of proteolysis was due to an increase in the total activity of bacterial proteinases released by lysis of the bacteria. Indications were obtained that the coagulants and bacterial proteinases catalysed broadly similar patterns of protein breakdown in cheese, and that medium-sized peptides (mol. wt 9000–14000) were formed as definite intermediates in the process. The results also showed that rennet and swine pepsin remained active for at least 7 months in GAL cheeses, that rennet contributed significantly to proteolysis in starter-containing cheeses, and that swine pepsin was at least extensively inactivated and possibly completely inactivated during cheese-making with starter. MenosThe rates of proteolysis during ripening were followed in cheeses made with either calf rennet or swine pepsin and either starter or δ-gluconic acid lactone (GAL) as a replacement for the starter. A gel-filtration column technique and starch-gel electrophoresis were used for analysis, and bacterial counts were made on all samples. Proteolysis was faster in cheeses made using GAL than in those made using starter and also slightly faster in GAL cheeses made with swine pepsin than in those made with rennet. Further, it was considerably slower in starter-containing cheeses made with swine pepsin than in those made with rennet. It is suggested that these differences were due to the much greater rate of development of acidity in cheeses made with GAL than in those made with starter, which resulted in more of the coagulant being incorporated into the curd in an active state. The rate of proteolysis in starter-containing cheeses appeared to follow a characteristic course, being initially slow, then markedly increasing with a later slow decline. It is suggested that the increase in the rate of proteolysis was due to an increase in the total activity of bacterial proteinases released by lysis of the bacteria. Indications were obtained that the coagulants and bacterial proteinases catalysed broadly similar patterns of protein breakdown in cheese, and that medium-sized peptides (mol. wt 9000–14000) were formed as definite intermediates in the process. The results also showed that rennet... Mostrar Tudo |
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Thesagro: |
Protease. |
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Thesaurus Nal: |
Cattle; Cheese milk; Cheeses; Proteolysis. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02446naa a2200205 a 4500
001 2164366
005 2024-05-21
008 1974 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1017/S0022029900019683$2DOI
100 1 $aGREEN, M. L.
245 $aComparison of the rates of proteolysis during ripening of Cheddar cheeses made with calf rennet and swine pepsin as coagulants.$h[electronic resource]
260 $c1974
520 $aThe rates of proteolysis during ripening were followed in cheeses made with either calf rennet or swine pepsin and either starter or δ-gluconic acid lactone (GAL) as a replacement for the starter. A gel-filtration column technique and starch-gel electrophoresis were used for analysis, and bacterial counts were made on all samples. Proteolysis was faster in cheeses made using GAL than in those made using starter and also slightly faster in GAL cheeses made with swine pepsin than in those made with rennet. Further, it was considerably slower in starter-containing cheeses made with swine pepsin than in those made with rennet. It is suggested that these differences were due to the much greater rate of development of acidity in cheeses made with GAL than in those made with starter, which resulted in more of the coagulant being incorporated into the curd in an active state. The rate of proteolysis in starter-containing cheeses appeared to follow a characteristic course, being initially slow, then markedly increasing with a later slow decline. It is suggested that the increase in the rate of proteolysis was due to an increase in the total activity of bacterial proteinases released by lysis of the bacteria. Indications were obtained that the coagulants and bacterial proteinases catalysed broadly similar patterns of protein breakdown in cheese, and that medium-sized peptides (mol. wt 9000–14000) were formed as definite intermediates in the process. The results also showed that rennet and swine pepsin remained active for at least 7 months in GAL cheeses, that rennet contributed significantly to proteolysis in starter-containing cheeses, and that swine pepsin was at least extensively inactivated and possibly completely inactivated during cheese-making with starter.
650 $aCattle
650 $aCheese milk
650 $aCheeses
650 $aProteolysis
650 $aProtease
700 1 $aFOSTER, P. M. D.
773 $tJournal of Dairy Research$gv. 41, n. 2, p. 269-282, Jun. 1974.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 13 | |
| 4. |  | CARVALHO, H. F. de S.; MOURA, M. S. B. de; SILVA, T. G. F. da; RODRIGUES, C. T. A. Microclima em áreas de Caatinga preservada e cana-de-açúcar irrigada no Semiárido brasileiro. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 20; SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 5., 2017, Juazeiro, BA. A agrometeorologia na solução de problemas multiescala: anais. Petrolina: Embrapa Semiárido; Juazeiro: UNIVASF; Campinas: Sociedade Brasileira de Agrometeorologia, 2017. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 5. | | CARVALHO, H. F. de S.; MOURA, M. S. B. de; LEITÃO, M. de M. V. B. R.; RODRIGUES, C. T. A.; SILVA, T. G. F. da. Albedo de Caatinga preservada comparado com cultivo de cana-de-açúcar irrigada. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 20; SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 5., 2017, Juazeiro, BA. A agrometeorologia na solução de problemas multiescala: anais. Petrolina: Embrapa Semiárido; Juazeiro: UNIVASF; Campinas: Sociedade Brasileira de Agrometeorologia, 2017. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 6. | | CARVALHO, H. F. de S.; MOURA, M. S. B. de; SILVA, T. G. F. da; SILVA, G. D.; RODRIGUES, C. T. A. Calibração do ceptômetro Accupar para determinação do índice de área foliar na cana-de-açúcar. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 20; SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 5., 2017, Juazeiro, BA. A agrometeorologia na solução de problemas multiescala: anais. Petrolina: Embrapa Semiárido; Juazeiro: UNIVASF; Campinas: Sociedade Brasileira de Agrometeorologia, 2017. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 8. | | RODRIGUES, C. T. A.; SILVA, T. G. F. da; MOURA, M. S. B. de; ARAUJO, G. G. L. de; CARVALHO, H. F. de S. Modificação do índice de cobertura vegetal da Gliricidia sepium promovida por diferentes lâminas de irrigação com água salina. In: JORNADA DE INTEGRAÇÃO DA PÓS-GRADUAÇÃO DA EMBRAPA SEMIÁRIDO, 1., 2016, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2016. p. 19-20. (Embrapa Semiárido. Documentos, 274).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 10. | | CARVALHO, H. F. de S.; MOURA, M. S. B. de; RODRIGUES, C. T. A.; SILVA, T. G. F. da; OLIVEIRA, L. D. da S. Índice de cobertura vegetal da Caatinga e cana-de-açúcar irrigada no Submédio do Vale do São Francisco. In: JORNADA DE INTEGRAÇÃO DA PÓS-GRADUAÇÃO DA EMBRAPA SEMIÁRIDO, 1., 2016, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2016. p. 15-16. (Embrapa Semiárido. Documentos, 274).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 11. | | RODRIGUES, C. T. A.; NUNES, T. C.; CARVALHO, H. F. de S.; SILVA, T. G. F. da; ARAUJO, G. G. L. de. Variabilidade espacial da umidade do solo em cultivo de gliricídia. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 20; SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 5., 2017, Juazeiro, BA. A agrometeorologia na solução de problemas multiescala: anais. Petrolina: Embrapa Semiárido; Juazeiro: UNIVASF; Campinas: Sociedade Brasileira de Agrometeorologia, 2017. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 12. | | RODRIGUES, C. T. A.; CARVALHO, H. F. de S.; SILVA, T. G. F. da; MOURA, M. S. B. de; CAMPOS, F. S. Variabilidade espaço temporal da temperatura máxima e mínima do ar no município de Petrolina-PE. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 20; SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 5., 2017, Juazeiro, BA. A agrometeorologia na solução de problemas multiescala: anais. Petrolina: Embrapa Semiárido; Juazeiro: UNIVASF; Campinas: Sociedade Brasileira de Agrometeorologia, 2017. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 13. | | CARVALHO, H. F. de S.; SILVA, T. G. F. da; SOUSA, C. A. A. de; DINIZ, W. J. da S.; RODRIGUES, C. T. A.; MOURA, M. S. B. de. Modelos matemáticos do coeficiente de cultura em função da evolução do crescimento da palma forrageira irrigada e sob diferentes sistemas de plantio. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 19., 2015, Lavras. Agrometeorologia no século 21: o desafio do uso sustentável dos biomas brasileiros: anais. Lavras: UFLA, 2015. p. 1081-1085.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 13 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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