کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5796376 1110703 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Higher somatic cells counted by the electronic counter method do not influence renneting properties of goat milk
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Higher somatic cells counted by the electronic counter method do not influence renneting properties of goat milk
چکیده انگلیسی

Laws of different countries regarding SCC of goat milk are not in agreement with each other and sometimes they fix a threshold for the enhancement of dairy products. The aim of this study was to assess if renneting properties of goat milk are influenced by higher somatic cell count (SCC) measured by an electronic cell counter. Milk samples, taken throughout the lactation of 169 goats from three farms, were analyzed for chemical, physical, hygienic and renneting properties. Samples were divided into three levels on the basis of their SCC: L: low level, samples with SCC lower than 106 cells/ml; M: medium, between 106 and 2 × 106 cells/ml; H: high, higher than 2 × 106 cells/ml. Milk clotting time was between 12.07 and 13.31 min, curd firming time between 1.68 and 2.05 min and curd firmness between 41.66 and 48.97 mm. All the three renneting properties were not affected by the SCC level but they were highly correlated with other factors as protein content and pH. Furthermore, the microbial count showed a high positive correlation with SCC. These results showed that in goat milk, contrarily to other dairy species, higher SCC did not affect renneting properties and that counting of somatic cells by using electronic cell counters might be not suitable for the improvement of dairy products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Small Ruminant Research - Volume 102, Issue 1, January 2012, Pages 32-36
نویسندگان
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