Evaluation of antibacterial activity of ethanol extracts of some medicinal plants against Listeria monocytogenes
Journal Title: مجله دانشگاه علوم پزشکی شهرکرد - Year 2006, Vol 8, Issue 3
Abstract
Background and aim: Listeria monocytogenes is a foodborne pathogen capable of causing outbreak or sporadic episodes in human. Most of the outbreak or sporadic episodes were in the last two decades and due to high rate of mortality, caused a great concern in food industries. There are various medicinal plants with the high performance of antibacterial activity in Iran. The present study investigated the anti-listerial activity of some of these palnts against two serotypes of foodborne L. monocytogenes. Methods: The plants were used included: Thymus vulgaris L., Eucalyptus globulus Labill. Matricaria recutita L, Rosmarinus officinalis L and Saliva officinalis L. The plants were selected and identified by Pharmacognosy Department of Isfahan Faculty of Pharmacy. Extracts of the selected plants were prepared. Then antibacterial activity of these extracts was determined by disc diffusion method. The Minimal Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) were also determined by the serial dilution method. Ampicillin (10 µg/disc) used in the test as standard. Results: Only ethanolic extract of Eucalyptus showed antibacterial effects against L. monocytogenes in both disc diffusion and serial dilution method. MIC and MBC of this extract were 31. 25 µg/ml and 500 µg/ml, respectively. There was no significant difference between the sensitivity of the two serotypes. Extract of other plants did not show any antibacterial effects against L. monocytogenes. Conclusion: Based on our results, only the extract of Eucalyptus showed antibacterial effects on both serotypes. Using other extraction methods and higher concentration of extracts may cause stronger antibacterial effect on L. monocytogenes. Keywords: Antimicrobial activity, Eucalyptus globulus Labill, Listeria monocytogene, Matricaria recutita L, Rosmarinus officinalis L, Salvia officinalis L, Thymus vulgaris L.
Authors and Affiliations
mouhamad Jalali, daryoush Abedi, nasrollah Ghassemi Dehkordi , amir Chaharmahali
Keywords
Related Articles
- EP ID EP112850
- DOI -
- Views 122
- Downloads 0
بررسي ميزان مخاطره عوارض قلبي بيماري تالاسمي ماژور در مدل كاكس <br /> <br />
چکیده: زمينه و هدف: تالاسمي ماژور شايع ترين كم خوني ارثي در دنيا و ايران است. تزريق مکرر خون به این بيماران موجب افزايش آهن ورودي به بدن شده و عدم تزريق منظم دسفرال باعث عوارض متعددي مي شود كه از جمله مهم ترين آنها عوار...
بررسي اثرات محافظت كبدي گياه بيلهر بر سميت القاء شده توسط تتراكلريدكربن در موش صحرايي
چکیده: زمينه و هدف: امروزه بیماری های کبدی یکی از مشکلات مهم جوامع بشری است. یافتن دارویی مؤثر در درمان این اختلالات مورد توجه محققین و پزشکان می باشد. بیلهر (Dorema auchri) از گیاهان تیره چتریان است و ساکنان مناطق جنوب...
تأثير گرسنگي بر تداخل عمل محور هورمون رشد و محور هيپوتالاموس– هيپوفيز– گناد در موش هاي صحرايي نر بالغ
چکیده: زمينه و هدف: گرسنگی سبب تغییر در سطوح پلاسمایی هورمون های هیپوفیزی از جمله گنادوتروپین ها و هورمون رشد می گردد. با توجه به پیچیدگی دو محور هیپوتالاموس- هیپوفیز- گناد و محور هورمون ر شد و نتایج متناقضی که در خصوص...
Comparison of birth growth indices between newborns of depressed and non-depressed women
Background and aims: High prevalence of depressive disorder and its disabling effects probably result in adverse effect on normal growth of fetus and on birth growth indices of newborns. Most importantly, their postnatal...
Effects of hyperglycemia and hypoglycemia on analgesic activity of Morphine in rat
Administration of Glucose or Insulin alters the pharmacological effects of some drugs. It has been reported that alteration of blood Glucose level affects the animal sensitivity top Barbiturates and Amphetamine. In this...