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GAINESVILLE, Fla. — River beds in urban areas worldwide store pharmaceuticals, and University of Florida scientists warn they can pose a potential environmental danger to aquatic organisms.
UF/IFAS Post-Doctoral Researcher Yun-Ya Yang conducted a study along rural and urban areas of the Alafia River, which runs through parts of Hillsborough County and empties into the Gulf of Mexico. In her study, Yang collected sediment samples at several sites along the river and found 17 pharmaceuticals.
Yang found a lower amount of pharmaceuticals than in previous similar studies because river beds in Florida do not contain enough silt and clay, but they can still present an environmental concern.
These types of chemicals are not confined to the Alafia River or urban-area rivers in Florida, said Gurpal Toor, an associate professor in soil and water science, who supervised Yang’s study. The scientists say their findings are representative of urban rivers worldwide, partly because wastewater treatments plants, septic systems and industrial wastewater empty into water bodies. Landfill chemicals also leach into water bodies. All these sources contribute these contaminants in the environment.
GAINESVILLE, Fla. — George Baker hopes to help ensure Gulf seafood remains safe to consume.
As the new seafood safety specialist for Florida Sea Grant, Baker will primarily give seafood processors the best scientific data from the University of Florida Institute of Food and Agricultural Sciences and other sources.
He’ll train processors and others in seafood safety. Baker wants to help develop methods to detect chemical compounds that would hinder seafood safety, and he hopes to generate and disseminate basic nutritional information or analysis.
“Working with seafood can be very exciting and quite challenging,” said Baker, who, in addition to his new Sea Grant position, will retain his appointment as an assistant professor in food science and human nutrition at UF/IFAS. “It seems that there are far more safety issues associated with seafood in the news or on the web than other food commodities like meat and poultry or produce. However, it’s my opinion that, unless you have a seafood-related allergy, seafood is as just as safe, or safer, than other food.”
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GAINESVILLE, Fla. — A sampling of more than 1,000 Gulf of Mexico fish, shrimp, oysters and blue crabs taken from Cedar Key, Fla., to Mobile Bay, Ala., between 2011 to 2013, shows no elevated contaminant levels, according to a seafood safety study conducted by Dr. Andrew Kane and colleagues at the University of Florida. In fact, some 74 percent of the seafood tested showed no quantifiable levels of oil contaminants at all.
“Seafood appears as safe to eat now as it was before the spill,” said Kane, associate professor of environmental and global health and director of the Aquatic Pathobiology Laboratory at UF’s Emerging Pathogens Institute. (more …)
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GAINESVILLE, Fla. — While Floridians believe they do a fairly good job of keeping themselves safe from foodborne illnesses, they aren’t always clear about which foods, preparation techniques or cooking methods pose the biggest risks.
But they may be a bit overconfident.
A survey released by the University of Florida’s Public Issues in Education, PIE Center today shows that the state’s residents have many concerns about food safety and genetically modified foods but want to know more.
GAINESVILLE, Fla. — Mosquitoes bite male birds nearly twice as often as they bite females, a finding that may help scientists understand how to stem some viruses from spreading to humans, new University of Florida research shows.
In findings published online today in Royal Society Open Science, UF entomology assistant professor Nathan Burkett-Cadena found mosquitoes bite male birds 64 percent of the time, compared to 36 percent for females.
This marks the first step for scientists to try to determine why mosquitoes bite men more often than women in some parts of the world and vice versa in other areas, said Burkett-Cadena, who is based at the Florida Medical Entomology Laboratory in Vero Beach.
“Understanding why mosquitoes bite males more often than females may lead to novel strategies for interrupting disease transmission,” said Burkett-Cadena, an Institute of Food and Agricultural Sciences faculty member.
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GAINESVILLE, Fla. — University of Florida Agricultural Extension Agent Cesar Asuaje is the recipient of the 2014 National Extension Diversity Award, given by the Cooperative Extension and the U.S. Department of Agriculture’s National Institute of Food and Agriculture. (more …)
GAINESVILLE, Fla. – Americans can take a warning from a University of Florida study of bottled water in China ─ don’t drink the liquid if you’ve left it somewhere warm for a long time.
Plastic water bottles are made from polyethylene terephthalate. When heated, the material releases the chemicals antimony and bisphenol A, commonly called BPA.
While the U.S. Food and Drug Administration has said BPA is not a major concern at low levels found in beverage containers, it continues to study the chemical’s impacts. Some health officials, including those at the Mayo Clinic, say the chemical can cause negative effects on children’s health.
And antimony is considered a carcinogen by the International Agency for Research on Cancer, part of the World Health Organization.
K.C. Jeong, an assistant professor of animal sciences at UF/IFAS, led the study.
GAINESVILLE, Fla. — A new biological treatment could help dairy cattle stave off uterine diseases and eventually may help improve food safety for humans, a University of Florida study shows.
Kwang Cheol Jeong, an assistant professor in animal sciences and UF’s Emerging Pathogens Institute, examined cattle uterine illnesses because they can make cows infertile, lower milk production and because those maladies are often linked to bacteria, he said. The UF researchers did their experiments in labs and at the Dairy Unit on the Gainesville campus.
Jeong and his research team infused chitosan microparticles ─ an antimicrobial material derived from dissolved shrimp shells ─ into diseased cow uteri. When bought in stores, chitosan can be used to treat many ailments from obesity to anemia. On its own, chitosan only works at acidic pH levels, Jeong said. For cattle, Jeong’s team developed chitosan microparticles, which work in acidic and neutral pH, because cattle uteri have a neutral pH.
GAINESVILLE, Fla. — University of Florida researchers have gained new insight into produce-associated salmonella that they hope will eventually reduce the number and severity of the illness-causing outbreaks.
Tomato variety and weather can combine to make what the researchers call a “perfect storm” for salmonella to proliferate in harvested tomatoes, a new study shows.
It remains unclear how much each contributes to salmonella’s spread, but scientists say understanding the process is key to eventually curbing produce-associated outbreaks.
GAINESVILLE, Fla. – Two papers co-authored by a University of Florida professor have been highlighted by a leading science journal.
The science journal Plant Physiology recently named the studies “Crop Genome Plasticity and Its Relevance to Food and Feed Safety of Genetically Engineered Breeding Stacks” and “Evaluating the Potential for Adverse Interactions within Genetically Engineered Breeding Stacks” as Editor’s Choice papers.
The papers were co-authored by Curtis Hannah, an professor with the horticultural sciences department, part of the UF Institute of Food and Agricultural Sciences.