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nike air max trainers Simple device can ensure food

Simple device can ensure food gets to the store bacteria free

WEST LAFAYETTE, Ind. A Purdue University researcher has found a way to eliminate bacteria in packaged foods such as spinach and tomatoes, a process that could eliminate worries concerning some food borne illnesses.

Kevin Keener designed a device consisting of a set of high voltage coils attached to a small transformer that generates a room temperature plasma field inside a package, ionizing the gases inside. The process kills harmful bacteria such as E. coli and salmonella, which have caused major public health concerns.

Keener’s process is outlined in an article released online early in LWT Food Science and Technology, a journal for the Swiss Society of Food and Technology and the International Union of Food Science and Technology.

“Conceptually, we can put any kind of packaged food we want in there,” said Keener, an associate professor in the Department of Food Science. “So far, it has worked on spinach and tomatoes, but it could work on any type of produce or other food.”

By placing two high voltage, low watt coils on the outside of a sealed food package, a plasma field is formed. In the plasma field, which is a charged cloud of gas, oxygen has been ionized and turned into ozone. Treatment times range from 30 s nike air max trainers nike air max trainers rong>econds to about five minutes, Keener said.

Ozone kills bacteria such as E. coli and salmonella. The longer the gas in the package remains ionized, the more bacteria that are killed. Eventually, the ionized gas will revert back to its original composition.

The process uses only 30 40 watts of electricity, less than most incandescent light bulbs. The outside of the container only increases a few degrees in temperature, so its contents are not cooke nike air max trainers d or otherwise altered.

Other methods of ozone treatment require adding devices to bags before sealing them to create ozone or pumping ozone into a bag and then sealing it. Keener’s method creates the ozone in the already sealed package, eliminating any opportunity for contaminants to ent nike air max trainers er while ozone is created.

“It’s kind of like charging a battery. We’re charging that sample,” Keener said. “We’re doing it without electrode intrusion. We’re not sticking a probe in the package. We can do this in a sealed package.”

Keener said testing has worked with glass containers, flexible plastic like food storage bags and rigid plastics, such as strawberry cartons and pill bottles. He said the technology also could work to ensure pharmaceuticals are free from bacteria. In this demonstration with a bag of tomatoes, helium has been added to a plastic bag because it glows, showing the ionization process. (Purdue Agricultural Communication photo/Tom Campbell)

nike air max trainers Simple Crochet Patterns For Be

Simple Crochet Patterns For Beginners Page 1 of 2

Easy crochet patterns are perfect for beginners. Easy crochet patterns can teach a beginner the basic crochet stitches. The only thing needed is a crochet hook and a ball of yarn. Simple crochet patterns can be finished in less than an hour, which is a great way to spend the time productively. A beginner will be able to master any basic crochet stitch with the help of any easy crochet pattern. Children and adults interested in learning how to crochet can begin with easy crochet patterns. Although it may take some time and a few easy crochet patterns before a beginner can master the basic stitches. It won’t be long before a crochet novice is creating wonderful masterpieces nike air max trainers that will become family heirlooms. Available Easy Crochet Patterns Crochet patterns for simple projects generally contain step by step instructions that are accompanied by colorful photos or sketches illustrating each part of the design. Aside from this, easy crochet patterns also contain valuable tips and additional how to notes about the project. These projects also provide helpful suggestions on the mo nike air max trainers st appropriate type of yarn a beginner should use for a project. Different easy crochet patterns are a great way to introduce a beginner to the various types of yarn used for crocheting. There are various types of easy crochet patterns that are available to a novice. From wearable items such as baby booties, bibs and mittens or decorative pieces like doilies, afghan covers or pillowcases. The simplest crochet pattern a beginner can do is a scarf. There are various crochet patterns for simple scarves that incorporate a single crochet stitch. However, there are crochet patterns for scarves that make use of two or more stitches. This helps a beginner become acquainted with more of the basic crochet stitches. Dishcloths and doll blankets are another example of easy crochet nike air ma nike air max trainers x trainers patterns that are perfect for beginners. One more easy crochet pattern that a beginner should consider trying out is the granny square project. Granny squares can be used to create other crochet projects like vests and blankets wherein the size can be adjusted for kids, adults and even pets. Beginners can also try out easy crochet patterns like a kitchen mat or even a poncho. Coasters, round or square, also make great projects for beginners as well as miniature purses that can be given away as gifts. Hats are another easy crochet pattern that make ideal gifts also. Resources for Easy Crochet Patterns There are numerous resources that can provide easy crochet patterns for beginners and even advanced crochet enthusiasts. Various craft books that are dedicated to crochet offer a variety of crochet patterns that range from the basic to the complex. Although craft books provide a comprehensive guide for beginners and skilled crocheters it often quite too bulky to lug around. At the same time leafing through numerous pages takes too much.

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