Navigation Links
Hormone-mimics in plastic water bottles -- just the tip of the iceberg?
Date:3/26/2009

In an analysis1 of commercially available mineral waters, the researchers found evidence of estrogenic compounds leaching out of the plastic packaging into the water. What's more, these chemicals are potent in vivo and result in an increased development of embryos in the New Zealand mud snail. These findings, which show for the first time that substances leaching out of plastic food packaging materials act as functional estrogens, are published in Springer's journal Environmental Science and Pollution Research.

Wagner and Oehlmann looked at whether the migration of substances from packaging material into foodstuffs contributes to human exposure to man-made hormones. They analyzed 20 brands of mineral water available in Germany nine bottled in glass, nine bottled in plastic and two bottled in composite packaging (paperboard boxes coated with an inner plastic film). The researchers took water samples from the bottles and tested them for the presence of estrogenic chemicals in vitro. They then carried out a reproduction test with the New Zealand mud snail to determine the source and potency of the xenoestrogens.

They detected estrogen contamination in 60% of the samples (12 of the 20 brands) analyzed. Mineral waters in glass bottles were less estrogenic than waters in plastic bottles. Specifically, 33% of all mineral waters bottled in glass compared with 78% of waters in plastic bottles and both waters bottled in composite packaging showed significant hormonal activity.

By breeding the New Zealand mud snail in both plastic and glass water bottles, the researchers found more than double the number of embryos in plastic bottles compared with glass bottles. Taken together, these results demonstrate widespread contamination of mineral water with potent man-made estrogens that partly originate from compounds leaching out of the plastic packaging material.

The authors conclude: "We must have identified just the tip of the iceb
'/>"/>

Contact: Renate Bayaz
renate.bayaz@springer.com
49-622-148-78531
Springer
Source:Eurekalert

Page: 1 2

Related biology news :

1. Stanford researchers develop biodegradable substitutes for wood, plastic bottles and other materials
2. Green plastics could help reduce carbon footprint
3. Plastic and reconstructive surgery -- in brief
4. Astrocytes and synaptic plasticity
5. 6 environmental research studies reveal critical health risks from plastic
6. Kalyon wins Society of Plastics Engineers 2008 Research Award
7. Plastics suspect in lobster illness
8. Iowa Corn Promotion Board, NJIT to license breakthrough, safe bio-plastic alternative
9. Protein fibrils as alternative plastics?
10. Reproductive plasticity revealed: Neotropical treefrog can choose to lay eggs in water or on land
11. Boost for green plastics from plants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... The most comprehensive study to date of the ... to more effective vaccine strategies and reveals surprising ... new results could alter public health strategies to ... worldwide each year. , Genomic analysis of 343 ... from around the world collected over the last ...
(Date:4/23/2014)... technique used to read quickly. It involves visual ... words and/ or sentences. Similarly to humans, biological ... "read" genetic information. Genes that need to be ... the encoding message, the easier it will be ... Gulbenkian de Cincia (IGC, Portugal) and Centre for ...
(Date:4/22/2014)... lead a five-year, $3 million study to determine whether ... transport of dissolved organic matter (DOM) through the Connecticut ... chemical composition and water quality of the watershed and ... Science Foundation,s MacroSystems Biology program, researchers will collect data ... in Canada and runs through five U.S. states, before ...
Breaking Biology News(10 mins):Impact of whooping cough vaccination revealed 2Cell division speed influences gene architecture 2Connecticut River watershed study will assess impacts of extreme rain events 2Connecticut River watershed study will assess impacts of extreme rain events 3
... of Illinois researchers identified the top pathogens, pests and ... Food Security. Soybean aphid, soybean rust, soybean cyst nematode, ... red leaf blotch, were featured as some of the ... and in the future. "Enormous potential exists to ...
... 2011) The remoteness and resource limitations of spaceflight ... solution is ultrasound. Scientists with the National ... expand the use of ultrasound during spaceflight and on ... include techniques that streamline training and help remote experts ...
... For most people, listening to the ocean means ... a sandy beach. But for researchers studying everything ... mapping to guiding robots trying to repair leaking undersea ... side underwater can reveal volumes of valuable ...
Cached Biology News:New and old threats to soybean production 2Space research gives birth to new ultrasound tools for health care in orbit, on Earth 2Space research gives birth to new ultrasound tools for health care in orbit, on Earth 3Space research gives birth to new ultrasound tools for health care in orbit, on Earth 4'Orca ears' inspire Stanford researchers to develop ultrasensitive undersea microphone 2'Orca ears' inspire Stanford researchers to develop ultrasensitive undersea microphone 3'Orca ears' inspire Stanford researchers to develop ultrasensitive undersea microphone 4
(Date:1/15/2014)... Look inside the new Preferred Solutions® ... lab, from fluid handling to instruments to supplies. Many ... you order. , Preferred Solutions features a full ... L/S® model for precise flow control and dispensing to ...
(Date:1/15/2014)... California , January 15, 2014 Oxford ... today announced the appointment of Thomas C Reynolds MD, PhD ... years, development experience gained in the biotechnology industry, most recently ... am delighted to welcome Tom at this transformative time for ...
(Date:1/15/2014)... 2014 This webinar will focus on ... safety assessment in biosimilars. , Regulatory frameworks are evolving ... development, however the complex nature of biopharmaceuticals makes the ... efficacy extremely challenging. Based on the specific aspects of ...
(Date:1/15/2014)... Houston, TX (PRWEB) January 15, 2014 ... Alzheimer’s disease, and about 1 in 3 seniors will ... ( source ). These jaw-dropping figures have shocked many ... function and, hopefully, help prevent these tragic age-related cognitive ...
Breaking Biology Technology:Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2
... America,s Heartland, the,weekly public television series that celebrates the ... season this fall. Twenty-two new half-hour segments will ... middle of the third season,America,s Heartland will have profiled ... 50 states. The program is made possible with ...
... PALO ALTO, Calif., Oct. 3 Alexza,Pharmaceuticals, Inc. ... corporate,presentation will be webcast live during the 4th ... at 4:30 p.m. Eastern Time. The presentation,will be ... may be accessed,under the Investor Relations tab at ...
... to 45%, GURGAON, India, Oct. 3 Ranbaxy ... the,signing of Definitive Agreements, providing for an increase in ... at a price of Rs. 160 per share,aggregating to ... shares from the existing Promoters (b) Preferential Offer ...
Cached Biology Technology:America's Heartland Launches Third Season Highlighting Contributions of American Farmers and Ranchers 2The 4th Annual BIO Investor Forum to Webcast Alexza's Corporate Presentation 2Ranbaxy to Consolidate Position in Biopharmaceuticals and Speciality Injectables Including Oncology 2Ranbaxy to Consolidate Position in Biopharmaceuticals and Speciality Injectables Including Oncology 3
... SPD101B is a no-frills, basic SpeedVac concentrator ... economically priced, this unit still features a ... digitial display of time and heat. It ... and accepts a wide variety of different ...
... to have active, real-time sample temperature monitoring. ... the worlds first, fully modular SpeedVac System. ... together to form an integrated unit or ... also the first SpeedVac to have sample ...
Digital display of time, vacuum and temperature , Dual vacuum control of ramping rate and ultimate level , Comes complete with RH40-12 (40 x 1.5 ml) Rotor and (2) Glass Condensation Flasks. ...
... Acid Resistant SpeedVac Model SPD131DDA , ... , The SPD131DDA is designed to handle the ... a new slim design, digital display, dual independent ... TEFLON coated chamber and vapor pathway. , , ...
Biology Products: