background: histamine is a food-borne chemical hazard which causes scombroid poisoning. the efficiency of histamine recovery from fish is greatly influenced by selection of an appropriate extraction solvent. hence, in this study the efficiency of different extraction solvents on recovery of histamine from fresh, frozen and canned fish was evaluated. methods: fresh, frozen and canned rainbow tro...

background: nowadays obesity is considered as a worldwide issue. although genetics is one of the factors associated with obesity, but the predisposing factors are nutrition and environmental factors.  there are several studies conducted regarding the relationship between nutritional factors and general obesity and central adiposity. therefore the purpose of this study was to determine the relat...

materials and methods: a total of 285 commercial and traditional dairy products as well as 267 pasteurized and raw milk samples were collected during one year. the samples were studied by culturing and the positive-culture samples were investigated using pcr techniques. results: the results of culture showed that 52 (9.42%) and 28 (5.07%) of the total 552 milk and dairy samples were positive fo...

background toxoplasma gondii is an obligate, intracellular parasite, which is widely spread in the world. the parasite is able to infect all warm-blooded hosts including human.the infection occures via consumption of food or water containing oocytes, eatingundercooked meats containing tissue cysts, and placenta. undercooked meat consumption is one of the most important ways of toxoplasma transm...

the accurate prediction of protein stability is one of the most challenging goals in protein formulation and delivery. in this study, a gradient rp-hplc method is described for the separation of human growth hormone (hgh) variants as deamidated and oxidized forms. the methodology employed a polymeric poly (styrene-co-divinylbenzene) column and a 1ml/min flow rate of a linear gradient of 0.1% v/...

objective:  unaccustomed and intense eccentric exercise is a common cause of delayed-onset muscle soreness (doms). there are multiple remedies for the treatment of doms, but its clinical and laboratory pieces of evidence are scarce. currently, the treatments proposed for doms are numerous and include pharmaceuticals, herbal remedies, stretching, massage, nutritional supplements, and other alter...

background and objectives: the objective of this study was to monitor the microorganisms isolated from grapes and its derivative traditional products produced in iran. material and methods: four kinds of grapes cultivated summer of 2010 in vineyard of takestan and also grape derived products from shahrod, hamedan and takestan were used for this study.  the samples were cultured in specific medi...

this fact that marketing can encourage farmers to produce and their products better introduce to compete in the sell market and with market-friendly products to know better is important. the farmer who is not familiar with the importance of marketing and its technology will not be able to succeed in selling their product and may sell your product at a cheaper price and will be deprived of inter...

the main purpose of this study was to identify and analyze factors affecting development of entrepreneurship in complementary and processing industries of citrus products at khouzestan province, iran. the statistical population of this study consisted of all managers in processing and complementary industries of citrus products in khouzestan province (n=89). by census method all managers were s...