Avaliação da qualidade microbiológica, físico-química e contagem de células somáticas em leite de cabra produzido na região de Nova Friburgo-RJ: metodologia tradicional versus metodologia eletrônica

Abstract

Goat milk is a high nutritional value food, of easy digestion, being also recommended for individuals presenting allergy to cow milk protein. In other to provide the consumer a good product, it is necessary to control the milk quality in terms of physicochemical and microbiological analysis and somatic cells counts. The objective of this work was to study goat milk production and to establish factors that influence its quality, using physicochemical and bacteriological analysis and somatic cells counting and through the comparison between the traditional and electronic methodology of the analyses of fat, protein, lactose, total dry extract, density, acidity and cryoscopic index; analyses of counting heterotrofic aerobic mesophilic and psycrotrophic bacteria; and somatic cells counting. The results show that electronic analysis methods when compared with traditional methods are advantageous and practical. However, it is important a specific standardization to use in goat milk. The physicochemical results had indicated that milk produced in the region of Nova Friburgo-RJ was in agreement with the legislation. The microbiological contamination index indicated possible problems of hygiene of milk. The development of goat dairy farm good agricultural practical is suggested.