Hossein Tajik
Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
[ 1 ] - Inhibitory effect of Zataria multiflora Boiss. essential oil, alone and in combination with monolaurin, on Listeria monocytogenes
Listeria monocytogenes is one of the major causes of infections in developing countries. In this study, chemical composition and anti-listerial effect of the essential oil of Zataria multiflora Boiss. alone and in combination with monolaurin were evaluated at different pH values (5, 6, and 7) and temperatures (5 ˚C and 30 ˚C). Chemical composition of Zataria multiflora</em...
[ 2 ] - The effect of Cinnamomum zeylanicum essential oil on chemical characteristics of Lyoner- type sausage during refrigerated storage
The effect of Cinnamomum zeylanicum essential oil (CZEO) at two concentrations (0.02% and 0.04% v/w) on chemical composition, pH, water activity (aw), lipid oxidation, color stability and sensory characteristics of Lyoner-type sausage stored at 4 ˚C for 40 days was investigated. The moisture content of the control sample was higher (p < 0.05) than CZEO incorporated samples, wh...
[ 3 ] - Physicochemical and antioxidative characteristics of Iranian pomegranate (Punica granatum L. cv. Rabbab-e-Neyriz) juice and comparison of its antioxidative activity with Zataria multiflora Boiss essential oil
Pomegranate juice (PJ) and its products are directly used in foods due to their pleasant taste and palatability as well as preservative effects. In spite of useful effects of essential oils such as zataria multiflora Boiss essential oil (ZEO) on prolonging shelf-life of foods, their application is restricted due to their vigorous taste and aroma. In the present study, physicochemical c...
[ 4 ] - Effect of carboxymethyl cellulose edible coating containing Zataria multiflora essential oil and grape seed extract on chemical attributes of rainbow trout meat
Meat products, especially fish meat, are very susceptible to lipid oxidation and microbial spoilage. In this study, first, gas chromatography mass spectrometry (GC-MS) analysis of Zataria multiflora essential oil (ZEO) components was done and then two concentrations of ZEO, (1% and 2%) and two concentrations of grape seed extract (GSE), (0.5% and 1%) were used in carboxymethyl cellulos...
[ 5 ] - Validation of drop plate technique for bacterial enumeration by parametric and nonparametric tests
Drop plate technique has a priority and preference compared with the spread plate procedure, because of less time, quantity of media, effort requirement, little incubator space, and less labor intensive. The objective of this research was to compare the accuracy and fidelity of drop plate method vs. spread plate method by parametric and nonparametric statistical tests. For bacterial enumeration...
[ 6 ] - ارزیابی آزمایشگاهی تاثیر ضدباکتریایی عصاره آبی سیر بر روی میکروارگانیسم‌های پاتو‍ژن زخم‌ها و جراحات درمانگاهی دامپزشکی
مقدمه: سیر از جمله گیاهانی است که از دیرباز در جوامع گوناگون به عنوان چاشنی، طعم‌دهنده و گیاه دارویی مورد استفاده بوده است. امروزه با بررسی‌های بیوشیمیایی صورت گرفته ترکیبات متفاوتی را به عنوان مسؤول خواص غذایی و دارویی سیر معرفی کرده‌اند از مهم‌ترین خواص مفید ادعا شده در مورد سیر، تاثیرات ضدمیکروبی آن است. هدف: انجام این تحقیق ارزیابی پتانسیل مهاری عصاره آبی سیر بر روی میکروارگانیسم‌های پاتو...
[ 7 ] - ارزیابی آزمایشگاهی تاثیرات مهاری مونولورین بر استافیلوکوکوس اورئوس در گوشت گاو
زمینه و اهداف: مونولورین یکی از معروف ترین گلیسرول مونواسـتر های اسـید لوریـک است که بر روی طیـف گستـرده ای از باکتری ها تاثیرات قابل ملاحظه مهاری دارد. جهت تقویت و گسترش اثرات مهاری آن از مواد شلاته کننده نظیر EDTA و مواد اسید کننده استفاده می شود. هدف از این مطالعه ارزیابی خاصیت مهاری مونولورین بر استافیلوکوکوس اورئوس و اثرات کاهش دهندگی مواد آلی موجود در گوشت بر خواص ضدباکتریایی آن بود. رو...
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