Bioactive amines changes in raw and sterilised milk inoculated with Pseudomonas fluorescens stored at different temperatures

• Autor(a) principal: Gloria, M. Beatriz A.
• Data de Publicação: 2011
• Outros Autores: Saraiva, Patricia R. L., Rigueira, Juliana C. S., Brandão, Sebastião C. C.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://dx.doi.org/10.1111/j.1471-0307.2010.00637.x; http://www.locus.ufv.br/handle/123456789/23276
• topic: Bioactive amines; Refrigerated storage; Pseudomonas fluorescens; Proteolysis

The presence of bioactive amines in raw and sterilised milk inoculated with Pseudomonas fluorescens during storage at 4°C, 7°C and 10°C for 6 days was investigated. Spermine, spermidine, putrescine, serotonin and phenylethylamine were present in the samples immediately after milking. Histamine, cadaverine and tyramine were formed in the raw milk on the 4th day of storage at 10°C, increasing significantly afterwards. Cadaverine was formed during sterilisation. There was no significant change in amines, acidity, thermostability and alizarol tests throughout storage of the sterilised milk; however, a putrid smell was detected at every temperature on the 6th day. Therefore, raw or sterilised milk storage at 4–7°C should not exceed 4 days. Furthermore, raw milk should not be stored at 10°C.