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Are frozen fruit and vegetables as good for you as fresh?

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When you are shopping for juicy strawberries or fresh greens, you may not stop at the frozen food aisle. Frozen fruit and vegetables often don’t look the part once defrosted, and you may think that the freezing process depletes them of some nutritious value.

Nothing is as good for you as fresh – right? On the other hand, frozen is often cheaper and is there all year round. And fresh is a relative term; fruit and vegetables can be in transit, sit in stores or wait in your fridge for some weeks. But can you get the same nutritional benefit from your frozen five a day?



Many had a go at perfecting the freezing process before Clarence Birdseye (the captain himself) came up with “quick-frozen” technology in the early 1920s. He copied Inuits in Alaska, who preserved their fish by freezing them quickly, meaning that large ice crystals didn’t form to damage cells and destroy the taste of the food.

Fruit and vegetables are between 70% and 90% water, and, once harvested, rapidly lose moisture, are attacked by microbes and degraded by enzymes.

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Nowadays, newer techniques are used, such as blanching vegetables before flash freezing. There are no chemicals involved, and, if you worry about frozen fruit and vegetables losing nutrients, then remember that fresh ones lose them too. Green peas lose just over half their vitamin C in the first 24 to 48 hours after picking.

A study by Ali Bouzari and colleagues at the University of California, comparing nutrients in eight different fresh and frozen fruit and vegetables (corn, broccoli, spinach, carrots, peas, green beans, strawberries and blueberries), found no consistent differences between fresh and frozen.

Vitamin C was higher in frozen corn, green beans and blueberries than in their fresh equivalents. There was more riboflavin (a B vitamin) in frozen rather than fresh broccoli, though fresh peas had more than frozen ones.

In another paper, the researchers looked at fibre and levels of minerals such as magnesium, calcium, zinc and iron and found no big difference between the frozen and fresh forms of the same eight fruit and vegetables.

Fans of frozen fruit and vegetables (and there are many in the food industry) argue that freezing stops the rotting process in its tracks. Frozen fruit and vegetables, if kept undisturbed in a good freezer, will have been captured and preserved in their prime and retain their minerals and vitamins.

Issues such as preferring the taste of fresh are more subjective. And, of course, frozen peas are much better than fresh ones for applying to minor bumps on the head.

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The Guardian

Health & Lifestyle

Climate change forces El Paso to make treated sewage water turn into drinking water

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As the global climate changes and water becomes an increasingly scarce resource, a number of cities such as India, Australia has earlier express their concern to reduce water shortage.



The authorities has disclosed to her citizens stating that “What we are seeing is a systematic increase in temperature, so we’re seeing the snow-melt runoff earlier…and more rapid melt than average. And again, for a given level of snow-pack, less runoff actually reaching the river and reaching our reservoir.

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However, in a bid to mitigate the water shortages,  El Paso is set to become one of the first cities in the US to treat sewage water and turn it into drinking water.

Chief technical officer of El Paso Water, Mr Gilbert Trejo said that the facility to treat sewage water with multiple steps of filtration such as carbon and UV filtration to make sure no pathogens or microbes are present.

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Adding that It will help to solve a major supply problem in the city and what’s more, some locals even say it tastes better.

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Food & Cuisine

Satellites warn African farmers of pest parasitic diseases

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Prof Charlotte Watts, chief scientific adviser for the UK’s Department for International Development, which funds the plant doctor scheme, says a new initiative with CABI and the UK Space Agency (UKSA) will use the network to prevent, rather than just reduce infestations.



When speaking to the newsmen, she expressed that the idea is to use satellite data collected by the UKSA to develop a system that is able to predict when pest infestations will strike a week or more in advance.

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It is also designed to inform the farmers through mobile phone alert for them to take precautions, adding that it will help boost farmers incomes and mitigate poverty rate.

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The modern forecast is being used in Kenya, Ghana and Zambia and will be rolled out soon to other part of the world.

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