کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2439330 | 1108095 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nisin and lacticin 481 coproduction by Lactococcus lactis strains isolated from raw ewes' milk
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Nisin and lacticin 481 coproduction by Lactococcus lactis strains isolated from raw ewes' milk Nisin and lacticin 481 coproduction by Lactococcus lactis strains isolated from raw ewes' milk](/preview/png/2439330.png)
چکیده انگلیسی
Bacteriocin-producing lactococci were isolated from raw ewes' milk samples obtained from 5 different Protected Designation of Origin Zamorano cheese manufacturers. Thirteen isolates with antimicrobial activity against Lactococcus lactis HP were selected. Eleven were identified by a PCR technique as L. lactis ssp. lactis and 2 were identified as L. lactis ssp. cremoris. They were grouped under 4 different pulsed-field gel electrophoresis patterns. The presence of structural genes of both nisin and lacticin 481 was detected in 10 L. lactis ssp. lactis isolates belonging to 2 different pulsed-field gel electrophoresis patterns. Coproduction of nisin and lacticin 481 was confirmed after semipurification by using selective indicators. The production of 2 bacteriocins by the same strain is an uncommon property, with relevance in food safety. Nisin and lacticin 481 L. lactis-producing strains might be used as adjunct cultures to the commercial starter in the manufacture of dairy products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dairy Science - Volume 92, Issue 10, October 2009, Pages 4805-4811
Journal: Journal of Dairy Science - Volume 92, Issue 10, October 2009, Pages 4805-4811
نویسندگان
D. Bravo, E. RodrÃguez, M. Medina,