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food gums show potential as teeth protectors
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formulating soft drinks with food gums like pectin and propylene glycol alginate may protect enamel from the detrimental effects of citric acid, suggests a new study from germany. the food gums could form a protective coating on the enamel surface of teeth, thereby protecting them from the dissolution and softening of enamel, according to findings published in dental materials. soft drink manufacturers are already looking at various options to reduce the enamel-eroding action of their products, according to the german researchers, with additives such as citrate and fluoride, saliva proteins and milk-proteins being investigated. the lab-based in vitro study, which used a citric acid solutions modified with the food polymers, indicated that pectin and propylene glycol alginate also have potential in this area. “to our best knowledge, the present study is the first using highly esterified pectin (hp) and propylene glycol alginate (pga), as erosion inhibitors,” state the researchers, led by klaus jandt from institute of materials science and technology (imt) at the friedrich-schiller-university in jena. study details professor jandt and his co-workers prepared citric acid solutions modified with the food-approved polymers at a level of 1 per cent. the solutions were made to varying acidity levels, including ph 2.3, 3.3, and 4.0. using enamel from human molars, the researchers tested the hardness of the enamel after soaking in the citric acid solution, and the polymer-modified solutions. the results showed that the gum arabic and the pga protected the enamel, with “statistically significantly higher nanohardness compared to samples treated with [the control citric acid solution],” said the researchers.
Source :foodnavigator.com
Date :
16
August
2010
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a new video from laboratory equipment specialist thermo fisher scientific is designed to improve food safety by showcasing the benefits of its tracefinder analytical software. intended for food safety and environmental testing laboratories, the video shows how tracefinder software allows users to reduce method development time from hours or days to minutes. dipankar ghosh, the company’s head of environmental and food safety marketing group, told foodproductiondaily.
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the agency has today written to all local authorities in england, wales and northern ireland to tell them about local launches of the national food hygiene rating scheme (fhrs), its branding and other developments. fhrs will help consumers choose where to eat out or shop for food by giving them information about the hygiene standards in restaurants, pubs, cafes, takeaways, hotels, supermarkets, and other places they eat out and buy food.
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washington (ap) - seafood from the gulf of mexico is being put under the microscope like no other kind on the market, with fish, shrimp and other catches ground up to hunt for minute traces of oil - far more reassuring than that sniff test that made all the headlines. and while the dispersant that was dumped into the massive oil spill has consumers nervous, health regulators contend there\'s no evidence it builds up in seafood - although they\'re working to create a test for it, just in case.
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do you want a statin with that cheeseburger and milkshake? touting pharmaceuticals as the neutralisers of fast food is not the answer to unhealthy diets and even the suggestion sends out the wrong message. last week, researchers from imperial college london published a study in the american journal of cardiology with the conclusion that handing out statins with a cheeseburger could neutralise the detrimental effects of daily fast food consumption.
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the american dietetic association (ada) recently published a position paper that urges local schools and their surrounding communities to work together to improve the nutritional quality of food in schools. the ada is also advocating for better nutrition education programs to assist students in making healthy lifestyle choices.\"[w]hen nutrition education, physical activity and a healthful school environment are ensured, learning is enhanced and students develop lifelong, healthful eating habits,\" explains the ada in its paper.
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several major reports have come out in recent years about the dangers of pharmaceutical drug residues being found in the nation\'s water supplies. but a new study has shown that major american food crops like soybeans are also absorbing these chemicals, and others, from the treated wastewater that farmers are applying to them.it is common practice for large-scale farm operations to dump billions of gallons of treated sewage and other recycled water on crops to help fertilize them.
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you may want to think twice about cooking that meat well-done, according to a new study out of the university of texas. researchers there have found that charring meat by frying, barbecuing or otherwise heavily cooking it can lead to the formation of cancer-causing chemicals in the meat.the study explains that people who eat well-done meat double their risk of developing bladder cancer when compared to people who eat meat on the rarer end of the spectrum.
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