Navigation Links
Pesticide build-up could lead to poor honey bee health
Date:8/18/2008

w them to meet national and international standards.

"When we began doing this work, honey was not regularly analyzed, and bee pollen was not a commodity and so was not analyzed," says Mullin. "We decided to go with the types of screening the lab does for milk and apples which look at over 170 pesticides. Now, honey is included in the commodities to be analyzed."

The researchers, including Roger Simonds, a chemist at the National Science Laboratory decided on a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method because it uses smaller samples. They coupled this with gas and liquid chromatography to develop methods of analyzing pollen, bees and wax.

"Simplicity was important because there were many people across the country sampling for us," says Maryann Frazier. "Now rather than having them collect 15 grams of pollen they need only collect 3 grams."

The researchers note that this method also uses less solvent and generates data in the parts per billion range.

While beekeepers will have a difficult time controlling pesticide exposure outside the hive, the researchers tested a method for reducing the acaricide load in beeswax. Using gamma radiation from a cobalt 60 source housed at Penn State's Breazeale Reactor, they irradiated the sheets of beeswax that beekeepers use as the structural foundation for the bees to build their combs. They used radiation levels at the high end of that used to irradiate foods. Irradiation broke down about 50 percent of the acaricides in the wax.

"Gamma radiation is often used to kill viruses and other disease causing agents," says James L. Frazier, professor of entomology, Penn State. "Commercial irradiation firms usually decontaminate medical instruments or foods."

The researchers tried irradiation at a commercial plant and though some modifications were necessary to irradiate the wax sheets, it is possible. Some beekeepers already irradiate their equ
'/>"/>

Contact: Andrea Elyse Messer
aem1@psu.edu
814-865-9481
Penn State
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Pesticides persist in ground water
2. Fruit fly helps identify protein critical to eggshell formation that may be pesticide target
3. Alternatives to ozone-depleting pesticide studied
4. 100 percent of people carry at least 1 type of pesticide
5. Satellites help ensure efficient use of pesticides
6. Alternative methods proposed to detect pesticides and antibiotics in water and natural food
7. CABI helps phase out dangerous pesticide in EU
8. Synthetic moleculues could add spice to fight against cancer
9. Brown tree snake could mean Guam will lose more than its birds
10. Medical doctors who do research could be a dying breed
11. Guilt on their hands: tiny tags could help to solve and deter gun crime
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/23/2014)... Ill. Scientists have scoured cow rumens and termite ... cell walls for the production of next-generation biofuels, but ... in the human lower intestine, researchers report. , Their ... the National Academy of Sciences , is the first ... microbes in the human gut can digest fiber, breaking ...
(Date:9/23/2014)... essential in the development of animals and plants. The ... information be translated in a reliable manner to give ... French-flag model of stripe formation is a classic paradigm ... colours of the French flag, is caused by a ... middle or low concentrations of the morphogen a "blue", ...
(Date:9/23/2014)... Sept. 23, 2014 Research and Markets ... Market Forecast and Opportunities, 2019" report to their ... used for enhancing security and protection in private as ... . The country,s government is focusing on using biometric ... and other national IDs that are of crucial importance ...
Breaking Biology News(10 mins):Search for better biofuels microbes leads to the human gut 2Search for better biofuels microbes leads to the human gut 3Recreating the stripe patterns found in animals by engineering synthetic gene networks 2India Biometrics Market Forecast and Opportunities, 2019 2India Biometrics Market Forecast and Opportunities, 2019 3
... discovered the critical sequence of events by which insulin ... The study, appearing in the May 9 Journal of ... Institute of Child Health and Human Development and the ... , “This finding provides useful information for understanding disorders ...
... lipid membrane. The membrane is studded with many hundreds ... into and out of the cell. Such membrane proteins ... and make the nervous system work. Scientists at Stockholm ... membrane proteins in the enteric bacterium Escherichia coli. Their ...
... to migrate to the appropriate locations in the brain and ... in an intricate network. Growth cones, structures in the tips ... right direction, guided by a complex set of signals from ... axons to extend and grow in a particular direction; others ...
Cached Biology News:NIH Researchers Discover How Insulin Allows Entry of Glucose Into Cells 2Cerebral navigation: How do nerve fibers know what direction to grow in? 2
(Date:9/23/2014)... September 23, 2014 Proove Biosciences ... will be presenting research on the association between specific ... U.S. Psychiatric and Mental Health Congress’ 27th ... conference focuses on the theme of ‘Embracing Change.’ Mental ... a changing landscape. From the challenges presented by the ...
(Date:9/23/2014)... Manassas, VA (PRWEB) September 23, 2014 ... organization, is pleased to announce two important appointments to ... as Executive Vice President of Strategy and Technology and ... Director for the Standards Resource Center. Both roles are ... Raymond H. Cypess, President and CEO at ATCC described ...
(Date:9/23/2014)... and ANNAPOLIS JUNCTION, MD (PRWEB) September 23, 2014 ... research leader in personalized medicine, presented industry leading research ... misuse this past weekend at the American Academy ... The meeting took place in Phoenix, Arizona at the ... study on the linkage between gender and genetic predisposition ...
(Date:9/23/2014)... Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced three ... to $5 million. The orders are all odour control projects ... continue to see new orders coming in," said Peter ... has climbed to over $11 million." About ... company that designs, manufactures and distributes a comprehensive line of ...
Breaking Biology Technology:Proove Biosciences Will Be Exhibiting New Genetic Research at the 27th Annual US Psych Congress Scientific Program 2Proove Biosciences Will Be Exhibiting New Genetic Research at the 27th Annual US Psych Congress Scientific Program 3ATCC Announces New Appointments to its Leadership Team 2ATCC Announces New Appointments to its Leadership Team 3Proove Biosciences Will Be Exhibiting I.M.P.L.O.R.E Study at the American Academy of Pain Management 25th Annual Meeting 2Proove Biosciences Will Be Exhibiting I.M.P.L.O.R.E Study at the American Academy of Pain Management 25th Annual Meeting 3
... Pennsylvania and REHOVOT Israel, January 16, Rosetta ... today unveiled initial data relating to the ... which is,based on a simple blood draw, ... year. The,company,s scientists and collaborators have identified ...
... Varian, Inc.,(NasdaqGS: VARI) today announced a plan to ... to close certain facilities. , ... economic environment,we are taking proactive steps to reduce our ... while continuing to invest in new product,development and maintaining ...
... cells, vastly improved medical imaging techniques and lighter ... potential applications envisioned for organic electronics. ... Elisabetta Collini of University of Toronto,s Department of ... to new insights into the way molecules absorb ...
Cached Biology Technology:Rosetta Genomics and Collaborators Unveil Colon Cancer Screening Diagnostic; Identified Candidate MicroRNA Biomarkers in Serum 2Rosetta Genomics and Collaborators Unveil Colon Cancer Screening Diagnostic; Identified Candidate MicroRNA Biomarkers in Serum 3Rosetta Genomics and Collaborators Unveil Colon Cancer Screening Diagnostic; Identified Candidate MicroRNA Biomarkers in Serum 4Varian, Inc. Announces Cost Reduction Plan 2U of T chemistry discovery brings organic solar cells a step closer 2
... Tray (3 per pack), 1. ... blot processing.Automated staining of Coomassie Blue ... nucleic acid analysis.Prepares blots for high ... control of protocol, solution, volume, and ...
... 1 g. High quality kits ... preparation that give consistent and ... and tissues.Clean up samples from ... Accurately quantitate protein for first-dimension ...
GOAT ANTI CARICA PAPAYA PAPAIN...
PAb to Hu-IFN-Alpha/Beta R2 [(IFNAR2) CD118], Rabbit Serum, neutralizing Binds to but does not neutralize human interferon alpha/beta receptor...
Biology Products: