Nowadays, high standard level of living has led to an increase in demand for foods which are minimally processed via high sensory and nutritional quality and also an extended shelf life. High pressure processing (HPP) is one of the techniques that was considered for food preservation at the first application in food industry. Pressures in the range of 300 to 650MPa have been found to affect the...

Milk is a healthy natural beverage and the main raw material of dairy products. It well known that milk first link to guarantee control quality safety Only high-quality can produce

background and objectives: in this study, the proteolysis and lipolysis of poosti cheese produced from raw sheep milk in mountainous eastern regions of iran were investigated during 90 days of ripening. materials and methods: sodium dodecyl sulfate polyacrylamide gel electrophoresis for proteolysis (sds-page) and gas chromatography (gc) for free fatty acids (ffas) were applied to investigate th...

materials and methods samples were collected from six different farms and milk factories in iran, and were tested by beta-star and cylinder-plate methods. results among 992 raw milk samples, 236 positive samples, 9 suspected and 747 negative samples in respond to beta-star test and among 236 samples, which had positive responses to beta-star test, 28 positive, 0 suspected and 208 negative resul...

A rapid method for the estimation of the microbiological quality of refrigerated raw milk was developed based on the aminopeptidase activity of Gram-negative psychrotrophic bacteria, the dominant microbial population in refrigerated foods. Two versions of the test for measuring the aminopeptidase activity are reported (direct and indirect). A good correlation (r=0.93–0.95) between bacterial cou...

The composition and physical properties of raw milk from a commercial herd were studied 8 over a one year period in order to understand how best to utilise milk for processing 9 throughout the year. Protein and fat levels demonstrated seasonal trends, while minerals and 10 many physical properties displayed considerable variations, which were apparently unrelated 11 to season. However, rennet c...

Isolation of genomic DNA is one of the basic steps in many different molecular analyses. There are a few reports on methods of DNA isolation from milk, but many of them are time consuming and expensive, and require relatively large volumes of raw milk. In this study a rapid, sensitive, and efficient method of DNA extraction from milk somatic cells of various mammals (cattle, sheep, goats, horse...

The aim of the present study was to investigate the physico-chemical quality of raw milk of one-humped camel coming from Khur and Biabanak known as a camel-rearing area located in Isfahan province of Iran. 500 milliliters of raw milk from thirty individual one-humped camels were randomly collected and subjected for proximate analyses indicating the amounts of total solid, protein, fat, lactose,...

The composition and physical properties of raw milk from a commercial herd were studied over a 1 year period in order to understand how best to utilise milk for processing throughout the year. Protein and fat levels demonstrated seasonal trends, while minerals and many physical properties displayed considerable variations, which were apparently unrelated to season. However, rennet clotting time...