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Tag: "food" at biology news

It's never too late to get it back! Aging interrupted

...lories which are consumed, rather than the type of food which is the key to the effects of low calorie diets on the ageing process. However, it is known that vegetarians and fish eaters live longer than red meat eaters, and that, generally, the more fruit and vegetables in the diet, the better your health...

Genome sequencing reveals key to viable ethanol production

...egrade and ferment grasses, corn stovers, and even food waste. "I don’t think this is the revolution that makes ethanol a mainstay," says Wu, "but I believe this is a part of what will lead to the revolution." This research, also authored by Wu’s graduate students Michael Newcomb and Chun-Yu Chen, is fu...

Cloning the smell of the seaside

...ypothesis'. DMS is also a remarkably effective food marker for ocean-going birds such as shearwaters a...er table! - and the birds sniff out their plankton food in the lonely oceans at astonishingly low concentrations. Scientists have known about DMS for man...

Researchers develop marker that identifies energy-producing centers in nerve cells

...ough a metabolic process that combines oxygen with food calories. It is these nerve signals that cause muscles to move and thoughts to be processed. Dr. Chandrasekaran says the fluorescent marker system may make it possible to explore how neuronal activity and the mitochondrial energy-producing system are...

Researchers find link between food odors and lifespan in fruit flies

...tling discovery ?in fruit flies, just the smell of food can have a negative effect on longevity. Scientis... the University of Houston report that exposure to food odors can modulate lifespan and partially reverse the longevity-extending effects of dietary restric...

New success in engineering plant oils

...to allow scientists to engineer more heart-healthy food oils. "Scientists have known for a long time that the ratio of saturated to unsaturated fatty acids plays a key role in plants' ability to adapt to different climates, but to change this ratio specifically in seed oils without changing the climate...

Blood sugar's manufacture limited by building blocks' supply

...During fasting, the supply of glucose derived from food dries up, Gray explained. In response, the body first breaks down liver glycogen, the principal storage form of glucose. However, the body "goes through those stores overnight," she said. Once the reserves are depleted, the body must rely on the s...

Scientists genetically engineer tomatoes with enhanced folate content

..."It can take years to get a genetically-engineered food plant approved by the FDA," Hanson said. "But before that is even a question, there are many more studies to be done--including a better look at how the overall product is affected by this alteration." And there is another hurdle the researchers m...

In obesity, brain becomes 'unaware' of fat

...atively constant despite large variations in daily food intake and energy expenditure, Cowley explained. Energy balance is regulated by neural and hormonal signals that are integrated in the brain. Leptin sends signals to the brain about the body’s fat reserves, modifying appetite and energy expenditur...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...s always been. Cook meat thoroughly and use proper food handling and preparation techniques ?washing your ...f them," Lee said. "There's no substitute for good food handling and preparation." ...

Human's ecological footprint in 2015 and Amazonia revealed

...on may affect the environment by taking account of food and fiber production, energy use, and human use of land for living space and other purposes. Population size and affluence have long been hypothesized to be primary drivers of environmental impact, however doubts over their relative impact remaine...

New report: Explosive growth changes salmon industry

...eport also recommends: harmonizing regulatory food safety standards; recognizing and mitigating environmental impacts of both farmed and wild salmon production; providing accurate and balanced information about salmon issues; collecting better data about seafood markets and consumers; ...

Arsenic in chicken feed may pose health risks to humans, C&EN reports

...s may not be the only organisms endangered by some food additives. An arsenic-based additive used in chick...pic of increasing controversy. A growing number of food suppliers have stopped using the compound, including the nation’s largest poultry producer, Tyson Fo...

Cambodian vulture nests offer hope for species

...l endangered from other threats, such as a lack of food due to the over-hunting of large-bodied mammals, l...ination of scientific research, direct protection, food supplementation and awareness-raising. Satellite-collaring of animals has lead to a greater understa...

Eating with our eyes: Why people eat less at unbused tables

...people restrict their consumption when evidence of food consumed is available to signal how much food they have eaten," said Brian Wansink, the John S. Dyson Professor of Marketing and of Applied Econom...

Metacognition: Faced with a test, rats can check their knowledge first

...the rat opted out of the test, it received a small food reward; if it opted in, it was subsequently presented with two levers, one of which it knew from past training represented "short duration" and one "long duration." Selection of the correct lever resulted in a large reward, whereas an incorrect choic...

Tracking sperm whales and jumbo squid

...ck: "For though other species of whales find their food above water, and may be seen by man in the act of feeding, the spermaceti whale obtains his whole food in unknown zones below the surface; and only by inference is it that any one can tell of what, preci...

How appetite-stimulating brain cells work overtime during fasting

...n's hunger center to remain active when periods of food scarcity result in a "negative energy balance," sa... production ate less than normal after a period of food deprivation. "This shows the key importance of UCP in the brain and its effect on neuronal activ...

Hotspots of mercury contamination identified in eastern North America

...o a millionfold and chemically modified in aquatic food chains, resulting in dangerous levels of methylmercury in some wildlife species. Fish consumption advisories responding to mercury contamination exist in all the states and provinces included in the study, and loons are adversely affected by mercury ...

Smell may outlast other senses

... smell was an important factor in the enjoyment of food flavours. “People who lose their sense of smel...so an important warning sense ?telling people when food is not fit for consumption.? Healthy women were shown to have a more sensitive sense of smell th...

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