Process cheese is produced by blending natural cheese in the presence of emulsifying salts and other dairy and nondairy ingredients followed by heating and continuous mixing to form a homogeneous product with an extended shelf life. Extensive research on the important physicochemical and functional properties associated with process cheese and the various physicochemical, technological, and microbiological factors that influence these properties has resulted in process cheese being one of the most versatile dairy products with numerous end-use applications. The present review is an attempt to cover the scientific and technological aspects of process cheese and highlight and critique some of the important research findings associated with them. The 1st objective of this article is to extensively describe the physicochemical properties and microstructure, as well as the functional properties, of process cheese and highlight the various analytical techniques used to evaluate these properties. The 2nd objective is to describe the formulation parameters, ingredients, and various processing conditions that influence the functional properties of process cheese. This review is primarily targeted at process cheese manufacturers as well as students in the field of dairy and food science who may want to learn more about the scientific and technological aspects of process cheese. The review is limited to the relevant research associated with process cheeses as defined by the U.S. Code of Federal Regulations and does not cover imitation and substitute cheeses.
The various types of cheese are nutrient-dense foods that are good sources of calcium, phosphorus, and protein. They are also important ingredients in many highly consumed foods such as pizza, cheeseburgers, and sauces. However, they are also perceived as being high in fat and sodium. Consumers have indicated that they would like to continue utilizing cheese in their diet but would prefer to have lower-fat and lower-sodium products. Fat and salt are important elements in the flavor, texture, food safety, and overall acceptability of cheese. Alternatives to fat and salt are being investigated but have not been found to be acceptable, especially in those products that meet the FDA's definition of low-fat and/or low-sodium. This review is primarily a report on the current status of research to develop desirable cheeses with low-fat and/or low-sodium, their regulatory and labeling status, consumer acceptability, and challenges for further efforts.
This study was undertaken to determine the proximate composition, vitamins, minerals and the antinutritional factor tannic acid in leaves of six genotypes of mulberry. The results showed that in fresh mulberry leaves the proximate composition values ranged from 71.13 to 76.68% for moisture, from 4.72 to 9.96% for crude protein, from 4.26 to 5.32% for total ash, from 8.15 to 11.32% for Neutral Detergent Fiber (NDF), from 0.64 to 1.51% for crude fat, from 8.01 to 13.42% for carbohydrate and from 69 to 86 kcal/100 g for energy. In dried mulberry leaf powder, moisture ranged from 5.11 to 7.24%, crude protein from 15.31 to 30.91%, total ash from 14.59 to 17.24%, NDF from 27.60 to 36.66%, crude fat from 2.09 to 4.93%, carbohydrate from 9.70 to 29.64% and energy from 113 to 224 kcal/100 g. Among vitamins ascorbic acid and beta-carotene were found to range from 160 to 280 mg/100 g and from 10,000.00 to 14,688.00 microg/100 g, respectively, in fresh mulberry leaves and from 100 to 200 mg/100 g and from 8438.00 to 13,125.00 microg/100 g, respectively, in dried mulberry leaf powder. The minerals iron, zinc and calcium were observed in the ranges of 4.70-10.36 mg/100 g, 0.22-1.12 mg/100 g and 380-786 mg/100 g, respectively, for fresh mulberry leaves, and 19.00-35.72 mg/100 g, 0.72-3.65 mg/100 g and 786.66-2226.66 mg/100 g, respectively, for dried mulberry leaf powder. The tannic acid ranged from 0.04 to 0.08% in fresh leaves and from 0.13 to 0.36% in dried leaf powder.
We find ourselves today often carrying numerous portable electronic devices, such a s notebook computers, mobile phones, PDAs, digital cameras, and mp3/MD/DVD players, used to help and entertain US in our professional as well as private lives. For the most part, these devices are used separately, and their a p lications do not interwhere inyormation may flow seamlessly between the devicessuch a network of personal devices is often referred to as a personal area network, or PAN. Moreover, access to the Internet via a (public) wireless LAN access point and/or via a 3G UMTS mobile phone would enable the PAN to be constantly online. The strongest candidate to provide the cheap short-range radio links necessary to enable such networks is the Bluetooth wireless technology. Seen from a networking perspective, a PAN will be expected to have participants, both of its "own" devices and "guest" devices from other PANs, continuously moving in andoutof itscoverage.Tocopewith thisvolatile nature of the network, the concept of ad hoc networking may be applied to create robust and flexible connectivity. A maior technical step is taken when the Bluetooth piconet network architecture, a strict star topology, is extended into a scatternet architecture, where piconets are interconnected. A consequence of creating scatternet-based
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