Data/hora: 07/06/2024 04:21:58

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Incorporation of nisin in natural casing for the control of spoilage microorganisms in vacuum packaged sausage	
Autores: 	Barros,Joyce Regina de; Kunigk,Leo; Jurkiewicz,Cynthia Hyppolito.	
Data: 	2010-12-01	
Ano: 	2010	
Palavras-chave: 	Nisin; Bacteriocin; Sausage; Natural casing.	
Resumo: 	This study aimed to evaluate the effectiveness of natural casing treatment with nisin and phosphoric acid on control of spoilage microorganisms in vacuum packaged sausages. Ovine casings were dipped in the following baths: 1) 0.1% food grade phosphoric acid; 2) 5.0 mg/L nisin; 3) 0.1% phosphoric acid and 5.0 mg/L nisin; and 4) sterile water (control). The sausages were produced in a pilot plant, stuffed into the pretreated natural casings, vacuum packaged and stored at 4 and 10 °C for 56 days. The experiments were performed according to a full factorial design 2³, totalizing 8 treatments that were repeated in 3 blocks. Aerobic plate counts and lactic acid bacteria analysis were conducted at 1, 14, 28, 42 and 56 days of storage. Treatment of casings with phosphoric acid 0.1% alone did not inhibit the growth of lactic acid bacteria and reduced the aerobic plate count by 1 log. The activity of nisin against lactic acid bacteria was enhanced by the addition of phosphoric acid, demonstrating a synergistic effect. Furthermore nisin activity was more evident at lower storage temperature (4 ºC). Therefore treatment of the natural casings with nisin and phosphoric acid, combined with low storage temperature, are obstacles that present a potential for controlling the growth of lactic acid bacteria in vacuum packaged sausage.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400019	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-83822010000400019	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.41 n.4 2010	
Fonte: 	info:eu-repo/semantics/openAccess