Physicochemical characteristics of goat's milk submitted to different freezing periods

• Autor(a) principal: Lima, Lílian Raquel do Nascimento
• Data de Publicação: 2021
• Outros Autores: Negreiros, Igor Filipe Leal, Silva, Edilene Ferreira da, Ramos, Lidiana de Siqueira Nunes
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/14089
• topic: Parâmetros de leite de cabra; Congelamento de leite de cabra; Método de conservação do leite.; Goat milk parameters; Freezing of goat's milk; Method of preserving milk.; Parámetros de la leche de cabra; Congelación de leche de cabra; Método de conservación de la leche.

Goat's milk is considered one of the most complete foods for presenting several important chemicals for human nutrition. However, the irregularity in the supply of such milk, resulting in dissatisfaction of industry and consumers. Given the above, if the objective was to evaluate the influence of different times of freezing as preservation technique, under the physical-chemical characteristics in goat's milk. Samples in natura goat were collected that represented the zero time and the same samples were targeted and subjected to slow freezing (-18 ± 2 °C), remaining frozen for 30, 60, 90, 120 and 150 days, and later thawed for achievement of Physicochemical fat analysis (%) non-fat solids (%), density of 15/15 °C, protein (%) lactose (%), salts (%), pH, acidity% lactic acid and cryoscopic index (° H). Goat milk samples were separated in natura of each producer for the establishment of the microbiological quality control. Microbiological and physico-chemical parameters in natura goat milk were within the recommended by law. Goat's milk may be subjected to the freezing of up to 150 days without suffering interference in their physicochemical characteristics. The conservation of goat milk by freezing is a viable technique to solve the problems of small-scale production of goat milk per animal and the seasonal nature of this production, regulating their stock in the consumer market.