Showing posts with label methods. Show all posts
Showing posts with label methods. Show all posts

April 10, 2012

How is the Food You Buy Preserved? - Top Five Methods of Processing Foods Revealed

What is the aim of preserving food? Well to put it plainly is to prolong the shelf life whilst maintaining the flavour and customary texture of the food.

What preserving food essentially does is stem the natural progression of the biological destruction of the food, ever wondered why milk past its sell by date has a terrible odour? This is caused by huge amounts of exploding populations of micro-organisms contaminating the milk. So in a word throw it away immediately.

1. Take off The Water In The Food -




Much like any living thing, the microbes on your food need water to live. Take off the water then the bugs on your food will not survive and reproduce more bugs. This means your food is fresher for longer. This is achieved by exposing the food to the air and sunlight. Typical examples of these foods would be raisins, prunes and apricots. Foods can also be heated or smoked which essentially the same thing such as smoked salmon, ham and trout.

2. Controlling The number Of Air To Food -

As discussed previously just as those annoying microbes need water to survive they also need air. Nine times out of ten if you cut the number of air to food you cut the number of bacteria. For example if we cook some pasta and put it in the refrigerator, without thinking we put plastic wrap to cover it. We are essentially doing the above and prolonging its life. The most favorite version of this you would find is in your local store which is 'vacuum packaging'. This is done as it is an extremely effective way of removing all the air from the food they are commonly in the form of a glass jar or plastic bag.

3. Preserving With Chemicals -

There are at least twenty five chemicals which are designed as food preservatives to forestall your food from spoiling. The three most favorite and found in the majority of preserved foods are 'Mold Inhibitors' these slow down the growth of mold on bakery products such as calcium propionate, sodium propionate and sodium benzoate which is also used in cheese and dairy spreads to forestall mould growth. One of the most widely used and oldest is 'Salt' for example if you covered some beef with salt and left it for a integrate of days the salt would draw out all of the water whilst eradicating the bacteria living in the meat, next thing you know you have corned beef. This has been used widely for centuries by sailors and the formula is still used to this day by the military. Finally the remaining favourite are 'Acidifiers' microbes cannot withhold themselves in an acid environment so hence it is the exquisite retort to avoid spoilage. The most favorite used are vinegar, wine and citric acid. Also fruit have this natural preservative already.

4. Temperature -

Exposing your food to greatest heat for prolonged periods of time reduces the bacteria and kills the microbes that may otherwise be on your food. A good example of this would be milk, we have all heard of Uht milk (ultra high temperature) when milk has gone straight through pasteurization it is heated to almost 160 degrees for a short period of time so it destroys any bacteria and microbes. To note once you then open your carton of Uht milk and put in the refrigerator it can last a week as the cold environment prevents any bacteria organisms that may have survived the pasteurization process from reproducing more bacteria. Lastly one of the most favorite forms of preserving food in the modern world is 'Freezing' to give you an idea if you buy a leg of lamb from your local butcher and put it straight in your freezer it will keep for up to twelve months compared to that same leg of lamb being left in your refrigerator, it would then as a rule only last a week.

5. Irradiation -

This is a exact way of exposing food to electron beams or gamma radiation. These are high vigor beams that are stronger than X-rays. Gamma rays (sounds a a bit sci-fi I know) are designed to kill the living cells in food thus prolonging your foods shelf life. They work by destroying bacteria and insects on fruit, vegetables and wheat. For example by doing this it slows down the natural process that fruit ripens and stopping your potatoes from sprouting after a integrate of days. One of the big benefits of this food preservation is that it can stop diseases from certain organisms such as E.coli and listeria.

In up-to-date years with advent of the 'organic movement' you can purchase your fruit and vegetables without any of the above treatments and this is a preferred selection for many people these days, but you then have the problem of your fresh furnish spoiling sooner and a lot of critics do ask if there is a noticeable variation in taste between organic and non organic produce.

On the whole in this modern age we are fortunate adequate to live in, we have the luxury to select food that would not of otherwise been ready all year long for us to eat. Food processing does undoubtedly enhance our foods flavour and enriches the nutritional value of the food we buy for the needs of the buying public.

How is the Food You Buy Preserved? - Top Five Methods of Processing Foods Revealed

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February 4, 2012

Ten Ways to Eliminate Mosquitoes and Four Worthless Measures - The Best Mosquito control Methods

If you've ever wondered which mosquito control methods work and which ones will naturally drain your pocketbook, read on for a allembracing overview of the good, the bad and the dangerous.

1.) Get an market grade fan for your patio or deck. Mosquitoes have weak, fragile wings. They are in effect swept away by changing currents.

2.) remove any standing water from the property. Plastic pools, bird baths, buckets, ditches and puddles are all excellent places for mosquitoes to breed. You'll also want to clear clogged gutters and pipes.

3.) Look into cedar oil. The U.S. Division of Agriculture recognizes cedar oil as the whole one biological insect control agent, proven classic to chemical counterparts. Varied spray and fogging techniques are used to control a wide collection of insect infestations on market farms and neighborhood lots.

4.) Drink icy or heavily iced beverages to lower your body climatic characteristic and diminish sweating. The carbon monoxide you expel while breathing increases with heat and exercise, guiding mosquitoes to your vicinity. Your personal heat and body odor lead to the cycle, manufacture you more sharp than other candidates in the yard.

5.) Deodorize your feet. If you favor sandals and flip flops over socks and tennis shoes, beware that exposed feet give off a suited odor which attracts mosquitoes. Try a good unscented powder to control foot moisture.

6.) Look into lemon eucalyptus oil. The U.S. Center for Disease control issued a statement in 2008 recommending lemon eucalyptus equally to deet for mosquito control. The customary disadvantage with lemon eucalyptus is that it's ordinarily sold in small bottles as a personal insect repellent. Cedar oil solutions are ready in gallon-sized packaging and wholesale concentrates, manufacture them much more cost effective for medicine with fogging machines and wide area sprayers.

7.) Cover up! It may sound obvious, but the most horrifying mosquito episodes occur when outdoor enthusiasts fail to dress appropriately. Take benefit of the standard drop in climatic characteristic after dusk. Opt for long sleeves and full length pants, especially if you have mosquito allergies or sensitive skin. Keep an extra pair of slacks in the car or backpack for summertime emergencies.

8.) Go light on the beer. Mosquitoes are attracted to the alcohol essence that is released straight through your pores.

9.) Forget the perfume. Positive members of the insect society will appreciate your scent even more than the humans you want to impress. Mosquitoes love perfume, especially floral or fruity fragrances.

10.) invest in a mosquito tent for outdoor gatherings. Your guests will thank you for creating a party climate conducive to fun and relaxation.

Now for some worthless measures...

According to the American Mosquito control Association, the following mosquito control tactics naturally don't work as well as consumers perceive:

1.) Bugs Zappers. Two independent studies found no significant dissimilarity in the whole of mosquitoes found in yards with or without bug zappers. Such devices catch huge numbers of non pest insects and relatively few mosquitoes.

2.) Citronella Candles: Citronella candles may yield a mild repellent effect, but they don't offer a significant increase in protection.

3.) Electronic Devices: At least 10 studies have found ultrasonic devices to be totally useless.

4.) Backyard Misting Systems: Misters needlessly inject pesticides into the environment, affecting mosquitoes and useful insects alike.

The Dangers of approved Pesticides

Before you reconsider using a chemical delivery system, take a moment to investigate the active ingredient online. You may not like what you find. customary Deet products are notorious for causing rashes, headaches, nausea and disorientation. Even pyrethrum based insecticides derived from chrysanthemums are not as safe as once believed. According to an E.P.A. scrutinize of poison control centers, pyrethrum based pesticides cause more insecticide poisoning incidents than any other pesticides except for organophosphates.

Due to allembracing controversy over customary insect control methods, cedar oil insect formulations have gained addition popularity and respect in the pest control industry. In 2006, at the invite of the U.S. Army, a team of world famed organic scientists extensive upon customary cedar oil formulations by introducing a quartz rock carrier to deliver a lethal dose of substance at the little level. This nano-sized delivery ideas closes the breathing pores of pheromone driven insects on taste and creates a chronic a barrier that discourages new insects from entering sprayed territory.

Ten Ways to Eliminate Mosquitoes and Four Worthless Measures - The Best Mosquito control Methods

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April 30, 2011

Cultural methods - a strategy of competition for control of pests

Different agricultural practices make the environment less friendly insect pests. Among these, the most effective and best strategy for pest control is the rotation, but is strongly recommended to avoid the development of pathogens and pests that often occurs when the species is a truncated region of continuity in the same.

Planting dissimilar in the same area in different seasons of work cultures as a way to control pests. A typical example is the ColoradoColorado beetle, which can only be controlled by crop rotation. Prevented from planting the potatoes away from the previous year's crop, that access to food beetle desirable, and die of hunger. Regularly changing the implantation site, the cycles of the parasites are interrupted or restricted. Yet another distinctive cultural method of pest control tactics are inter-cropping or mixed cropping, the practice of cultivating two or more cultures, in the immediate vicinity. Inter-cultivation of suitable speciesprovides habitat for a variety of soil organisms and insects that would not have been introduced in a single crop. ecological diversity and put an end to the outbreak of pests by increasing the number of host species of spiders and parasites.

Electronic Insect Control

There is another effective strategy for cultural control of pests using the restricted and proper use of water and fertilizers. annual rainfall and flooding can inhibit the dangers of pests in agricultural land.Pesticides as a useful organic fertilizer with adequate irrigation can ward off pests.

sanitation practices are another method for some pests, eliminating the parasites from the food and shelter to suppress. This technique provides improved cleaning and removing harborage of pests and increasing the frequency of waste collection.

By far the best cultural methods to control pests. We can take advantage of this method with the proper use of all parasites derivedThe control products, making our environment green and healthy at the same time.

Cultural methods - a strategy of competition for control of pests

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