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Physicochemical and microbiological of Carora goat white cheese in Lara state, Venezuela

机译:委内瑞拉拉拉州Carora山羊白奶酪的理化和微生物学

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The quality and sensory attributes of cheese vary as a result of lack of standardization of manufacturing processes and the composition of the raw material. The physico-chemical composition (moisture, protein, fat, chlorides, ash, pH, water activity-aw) and the microbiological quality (total and fecal coliforms, Escherichia coli , Staphylococcus aureus , Salmonella sp) of cheese were studied from four traditional goats production units at the surroundings of Carora, Lara state The results showed high variability in their physicochemical and microbiological quality composition: moisture (50,24 - 55,03 g/100g), protein (18,06 - 31,07 g/100g), fat (23,55 - 35,31 g/100g), chloride (3,74 - 6,79 g/100g), ash (4,86 - 8,46 g/100g), acidity (0,19 - 0,28% lactic acid), aw (0, 95 - 0,98), total coliforms (102 - 104 MPN/ g) and fecal (101 - 104 MPN/g). We determined the presence of E. coli, and Citrobacter freundii , and no more of S. aureus and Salmonella spp. Based on the results obtained, it may indicate that the cheeses of this place had lack of microbiological quality and in some cases may represent a risk to consumer health. It is necessary to apply good manufacturing practices (GMP) and HACCP to improve the sanitary quality of artisanal cheeses.
机译:由于缺乏标准化的生产工艺和原料成分,奶酪的质量和感官属性有所不同。研究了四只传统山羊奶酪的理化组成(水分,蛋白质,脂肪,氯化物,灰分,pH,水活度-aw)和微生物质量(总和粪便大肠菌群,大肠杆菌,金黄色葡萄球菌,沙门氏菌)。拉拉州卡罗拉周边地区的生产单位结果显示,其理化和微生物质量组成存在很大差异:水分(50,24-1024 g / 100g),蛋白质(18,06-31,07 g / 100g) ,脂肪(23,55-35.31 g / 100g),氯化物(3,74-6,79 g / 100g),灰分(4,86-8,46 g / 100g),酸度(0,19-0 (28%乳酸),aw(0,95-0,98),大肠菌群(102-104 MPN / g)和粪便(101-104 MPN / g)。我们确定了大肠杆菌和弗氏柠檬酸杆菌的存在,而没有金黄色葡萄球菌和沙门氏菌的存在。根据获得的结果,这可能表明该地点的奶酪缺乏微生物品质,在某些情况下可能会危害消费者的健康。必须采用良好生产规范(GMP)和HACCP来改善手工奶酪的卫生质量。

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