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首页> 外文期刊>African Journal of Food, Agriculture, Nutrition and Development >Evaluation of physico-chemical, nutritional and microbiological quality of raw cow’s milk usually Consumed in the central part of C?te d’Ivoire
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Evaluation of physico-chemical, nutritional and microbiological quality of raw cow’s milk usually Consumed in the central part of C?te d’Ivoire

机译：通常在科特迪瓦中部食用生牛奶的理化，营养和微生物质量评估

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Cow’s milk is by far the principal type of milk used throughout the world. Three systems of husbandry in C?te d’Ivoire produce raw milk. This production is always consumed directly by people, mainly children (orphans) although it presents real sanitary risks. In order to evaluate quality of these cow’s milks, several samples were collected during a three month period (April to June 2009) at three cattle farms from where consumers got supplies. Physicochemical, nutritional, microbiological properties of the milks were studied. Results showed that viscosity, dry matter, fat and chloride contents of milk of traditional cows, N’dama and Zebu are higher than the standard values. pH values and acid content of N’dama milks are identical to those of standards. Zebu milk values for these two parameters are higher than standards: 6.59 ± 0.30 > 6.50 ± 0.30 %; 21.0 ± 1.0 > 17.0 ± 1.0 °D, respectively. However,conductivity, protein content, lactose and ash content of these milks are lower than those of standards. Comparing the characteristics of milks from various farms showed that farm C had higher content of fat (5.00 ± 1.18 > 3.25 ± 0.25), titrable acidity (20.40 ± 0.68 > 17.0 ± 1.00), dry matter (174.00 ± 18.42 > 127.50 ± 2.50), chloride (2.66 ± 0.56 > 1.60 ± 0.20) and viscosity (1.60 ± 0.20 > 2.00 ± 0.30) compared with the standard values. There is no significant difference (p >0.05) in viscosity value, chloride and protein contents among the milks of the three farms. Conductivity, ash and protein content showed lower values than those of the standards. Microbiological result showed that all of the raw milks were contaminated, but the milks from farms B and C were more contaminated. Staphylococcus aureus count in milk of these farms were 8 x102 and 65 x102 cfu/ml, 5.1 x105 and 251.2 x105 cfu/ml for TVBC and total coliform were 3.85 x103 and 6.91 x103 cfu/ml. These values are higher than those of the standards. In short, milk produced in the farms has acceptable physico-chemical, nutritional and properties but bad microbiological qualities. Key words: raw milk, cows, quality, hygiene
机译：迄今为止，牛奶是全世界使用的主要牛奶类型。科特迪瓦的三种畜牧业生产原料奶。尽管这种产品存在真正的卫生风险，但始终直接被人们（主要是儿童（孤儿））消费。为了评估这些牛奶的质量，在三个月（2009年4月至2009年6月）的三个养牛场中收集了一些样品，消费者从那里获得了补给。研究了牛奶的理化，营养，微生物特性。结果表明，传统奶牛，N'dama和Zebu的牛奶的粘度，干物质，脂肪和氯化物含量均高于标准值。 N'dama牛奶的pH值和酸含量与标准值相同。这两个参数的Zebu牛奶值高于标准值：6.59±0.30> 6.50±0.30％; 21.0±1.0> 17.0±1.0°D但是，这些牛奶的电导率，蛋白质含量，乳糖和灰分含量均低于标准牛奶。比较不同农场的牛奶特性后发现，农场C的脂肪含量较高（5.00±1.18> 3.25±0.25），可滴定的酸度（20.40±0.68> 17.0±1.00），干物质（174.00±18.42> 127.50±2.50）与标准值相比，氯离子（2.66±0.56> 1.60±0.20）和粘度（1.60±0.20> 2.00±0.30）。三个农场的牛奶之间的粘度值，氯化物和蛋白质含量没有显着差异（p> 0.05）。电导率，灰分和蛋白质含量显示低于标准值。微生物学结果表明，所有原奶均受到污染，但农场B和C的牛奶受到更多污染。这些农场的牛奶中金黄色葡萄球菌计数分别为8 x102和65 x102 cfu / ml，TVBC的5.1 x105和251.2 x105 cfu / ml，总大肠菌群为3.85 x103和6.91 x103 cfu / ml。这些值高于标准值。简而言之，农场生产的牛奶具有可接受的理化，营养和特性，但微生物质量较差。关键词：原料奶母牛质量卫生

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