Estabilidade térmica e ao álcool do leite de cabras Saanen e Alpina= Thermal and alcohol stability of Saanen abd Alpine goat's milk / Thermal and alcohol stability of Saanen abd Alpine goat's milk
AUTOR(ES)
Mello, Fernanda Assaife de
DATA DE PUBLICAÇÃO
2011
RESUMO
Background: The increase in the goat’s milk production chain has been intensified in recent years. However, little is known about the quality characteristics of goat’s milk. In this sense, the present assay aimed to evaluate the physical parameters of goat’s milk: titratable acidity, alcohol and heat stability and its possible relations. Materials, Methods & Results: 71 samples of Saanen and Alpine goat’s milk were collected during the second lactation phase. In the milk samples were determined the titratable acidity and thermal and alcohol stability. Besides milk samples, date of individual milk production, race, date of birth and order of birth were collected. The titratable acidity values ranged between 11 and 20°D. The median stability of alcohol 52ºGL was verified and 76.4% of the samples presented an alcohol stability in which the graduation was lower than 60ºGL. A low negative (r = -0.1914) and non significant (P = 0.1073) correlation was determined between milk production and alcohol stability. In addition to this, a low negative (r = -0.05702) non-significant (P = 0.6223) correlation between alcohol stability and acidity, measured in Dornic degrees was determined; however, these results did not present a significant association between each other (k = -0.006). During the clot-on boiling test, a coagulation rate of 39.46% (30/76) from the samples was observed, from which 32% (16/50) was originated from Saanen goats and 53.85% (14/26) from Alpine goats
ASSUNTO(S)
leite : caracteristica fisico-quimica goat’s milk leite caprino : composicao titratable acidity thermal resistance leite alcohol test estabilidade termica
ACESSO AO ARTIGO
http://hdl.handle.net/10183/29213Documentos Relacionados
- Aspectos sanitários do úbere e composição química do leite de cabras Saanen
- Qualidade higiênica do leite caprino por contagem de coliformes e estafilococos.
- Efeito do tempo de armazenamento do leite de cabra in natura sobre a qualidade e a estabilidade do leite de cabra em pó.
- Yersinia enterocolitica in raw goat's milk.
- Avaliação da produção de leite em cabras da raça Saanen utilizando modelos de regressão aleatória