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Register a new userIsolation and characterization of lactic acid bacteria from some Syrian diary products
عزل و توصيف أنواع بكتيريا حمض اللبن من بعض منتجات الألبان السورية
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أجري البحث في مخابر كلية الزراعة في قسم علوم الأغذية بهدف عزل بكتيريا حمض اللـبن مـن بعض منتجات الحليب السورية (حليب، لبن، جبن) و تحديد بعض خصائـصها الـشكلية و الفيزيولوجيـة و قدرتها على تخمير السكريات.
This research was conducted at the Faculty of Agriculture, Department of Food Science laboratories to isolate lactic acid bacteria from some Syrian milk products (milk, yogurt, cheese) and determine some morphological, physiological characteristic and the ability of these isolates to ferment sugars.
References used
Abdullah, A. S. and M.M. Osman. 2010. Isolation and Identification of Lactic Acid Bacteria from Raw Cow Milk, White Cheese and Rob in Sudan.Pakistan Journal of Nutrition .9 (12): 1203-1206. Issn 1680-5194
Ali, A. A. 2011. Isolation and Identification of Lactic Acid Bacteria from Raw Cow Milk in Khartoum State, Sudan. International Journal Dairy Science. 6(1): 66–71
Axelsson, L. 2004. Lactic Acid Bacteria: Classification and physiology. In: Lactic Acid Bacteria, Microbiological and Functional Aspects. Salminen, A.V. and A. O. Wright (Eds.) ouwehand. Marcel Dekker, New York, pp: 1- 66
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This research was conducted in the Agriculture Faculty- Food Science
Department, Damascus University, for detecting Lactic acid bacteria isolated
from Syrian dairy products (white fresh cheese-Leben), Samples were collected
from August, 2004 to Oc
tober, 2005 from different areas in Syria. Analysis was
done for 245 bacterial isolates from 40 samples of white fresh cheese and 58
samples of yogurt (curd). Results showed that the genus Enterococcus was
dominant with a percentage of 47.52%; Pediococcus had a percentage of 26.3
%; while Lactococcus had a percentage of 15.38% with only 3.2% for
Lactobacillus.
This study was conducted at the laboratory of Food Science Department,
Agriculture College, Damascus University to isolate and characterize of
Lactobacilli bacteria from some Syrian foods and detection the effectiveness of
anti-pathogenic bacteria
l growth. Lactic acid bacteria from different dairy
products, pickles and dried plant samples were isolated and identified
according to common characteristics. Results showed that twenty-three isolates
were rods while only 2 of the them were coccid. These isolates were tested for
their antimicrobial effect against pathogenic bacteria for both gram positive
bacteria (Staphylococcus aureus) and gram negative bacteria (Klebsiella
pneumonia and Escherichia coli). Fifteen isolates demonstrated antimicrobial
effect against the three tested bacteria, of which CP50 and CP46 isolates
showed the best antimicrobial effect. Results of the standard physiological and
biochemical tests identified fourteen isolates as Lactobacillus plantarum and one
isolate as Lactobacillus fermentum.
Fifty eight isolates of lactic acid bacteria were obtained from different
local fermented foods. Isolates were identified using microscopic, cultural and
biochemical tests using API strips. Results showed that 44.83% of the isolates
were rod shape
d and 55.17% belonged to cocci bacteria.
Total of 33 isolates of lactic acid bacteria from different
samples (Dairy products, Pickles), were isolated and identified
according to the common characteristics of lactic acid bacteria.
Twinty-five isolates were rods and 9 were cocci.
أجري هذا البحث في مخابر كلية الزراعة بجامعة الفرات قسم علوم الأغذية وفي مخابر هيئة الطاقة الذرية بدمشق وقد هدف إلى عزل وتعريف بعض سلالات بكتريا حمض اللبن من الحليب الخام للنوق والماعز الشامي بالإضافة إلى دراسة بعض الخصائص الكيميائية والتصنيعية للسلالات المعزولة وذلك في عامي ( 2010و 2011)
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