نتایج جستجو برای: food
تعداد نتایج: 270769 فیلتر نتایج به سال:
برهمکنش dnaتیموس گاوی طبیعی (ct-dna) با اتیلن دی آمین تترااستات (edta)در بافرtris-hcl با 8/7 ph ( دراین ph،edta به نمک دی سدیم تبدیل می شود) وسسامول در بافر tris-hcl با4/7 ph مورد بررسی قرار گرفته است. edta و سسامول استفاده فراوانی در تکنولوژی غذایی و صنعت شیمیایی دارند. مدل اتصال dna مربوط بهedta بوسیله اسپکتروفتومتری جذب، دورنگ نمایی حلقوی(cd)، ویسکومتری وژل الکتروفورز بررسی شده است. طیفuv ...
Modern challenges of food science require a new understanding of the determinants of food quality and safety. Application of advanced imaging modalities such as magnetic resonance imaging (MRI) has seen impressive successes and fast growth over the past decade. Since MRI does not have any harmful ionizing radiation, it can be considered as a magnificent tool for the quality control of food prod...
fast food has become a prominent feature of diet and has grown into a dominant dietary pattern among youth worldwide. it is difficult to escape noticing the colourful edifice and bill boards of these food outlets, one is probably just around the corner of your street. mr biggs, tastes fried chicken, sweet sensation, big treat, favourite etc. due to competitive nature of the market many of the f...
background during fishing and transport, preservation and quality of fish products are important as well as storage to prevent the growth of pathogenic and toxin producing bacteria. staphylococcus aureus is one of the most common causes of sea food-borne diseases worldwide due to contamination of food by preformed enterotoxins. the aim of this study was to compare the prevalence and contaminati...
background: physical characteristics of crops play an important role in designing the required machinery and apparatus for planting, harvesting, transport, processing and also storing. the aim of this study was to determine physical characteristics of some native rice varieties cultivated in northern iran, namely gerde, shafagh, tarom-e-hashemi, shiroodi and keshvari. methods: some geometrical,...
background: the presence of antibacterial drug residues in food caused many concerns for consumers. this study was designed to determine of antibacterial drug residues in commercial eggs distributed in urmia, iran. methods: disc diffusion microbial inhibition test was performed using three media seeded with bacillus subtilis at different ph values (6, 7.2 or 8) and a fourth medium seeded with ...
background: herbal essential oils (eos) are natural, volatile, and complex compounds that are defined by a strong odor. this study was conducted to investigate and compare antioxidant and antifungal properties of eo extracted from flowers and leaves of origanum vulgare ssp. gracile from iran. methods: eos of leaves and flowers of o. vulgare ssp. gracile were extracted using a modified clevenger...
background: lactoperoxidase (lpo) is one of the most heat-stable enzymes in milk and its inactivation has been proposed for monitoring thermal processes. the aim of this study was to provide information on activity and thermal inactivation behavior of lpo in iranian cow and buffalo milk and whey. methods: sixty cow and buffalo milk samples were collected. the lpo activity was measured using spe...
introduction: food habits play important roles in maintaining physical and mental health and preventing chronic illnesses in the elderly. the aim of the present study was to investigate dietary behaviors of elderly people residing in yazd city which is located in central iran. methods: the present analysis was conducted on 1684 participants entered to yazd health study (yahs) aged over 60 years...
a bstract background: nutrition pattern is one of the important factors predicting menstrual distress, which varies among different cultures and countries. the purpose of this study is to determine the relationship between food frequency and menstrual distress in high school girls from mashhad. materials and methods: this cross‑sectional study was conducted in 2012 using a two‑stage sampling ...
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