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:9/1/2014)... television making us fat? An increasing amount of research ... consumption and a more sedentary lifestyle. Now, a new ... is alike. Some TV programs might lead people to ... that if you,re watching an action movie while snacking ... Tal, Ph.D. lead author on the new article just ...
(Date:9/1/2014)... Conventional wisdom has long held that corals ... reefs are passive organisms that rely entirely ... as nutrients and oxygen. But now scientists at ... in Israel have found that they are far ... into turbulent patterns that greatly enhance their ability ...
(Date:9/1/2014)... basic building block of DNAcould initiate fragile X syndrome, the most ... The Journal of Cell Biology . , ... on the X chromosome called fragile X mental retardation 1 ... men carry a so-called premutation, in which a series of DNA ... slightly longer than normal. These repeats are prone to even further ...
Breaking Biology News(10 mins):Can action movies make you fat? 2Nature's tiny engineers 2Nature's tiny engineers 3A nucleotide change could initiate fragile X syndrome 2
... longest in the animal kingdom and they have largely ... scientists led by the University of Exeter have uncovered ... Africa and the results could have huge implications for ... the journal Current Biology, Dr Brendan Godley and an ...
... international team of scientists reported evidence, in a controversial cover ... more than 3.8 billion years ago--400 million years earlier than ... that team and two of the original authors will report ... , Craig E. Manning, lead author of the new study ...
... mouse is providing hope of a new treatment for ... transmission of serotonin in the brain. Serotonin is known ... sexuality. By breeding mice with an absence of TREK-1, ... of this research, which involved an international collaboration with ...
Cached Biology News:How satellite tracking revealed the migratory mysteries of endangered Atlantic loggerhead turtles 2UCLA scientists strengthen case for life more than 3.8 billion years ago 2UCLA scientists strengthen case for life more than 3.8 billion years ago 3UCLA scientists strengthen case for life more than 3.8 billion years ago 4UCLA scientists strengthen case for life more than 3.8 billion years ago 5Ever-happy mice may hold key to new treatment of depression 2
(Date:9/2/2014)... University of Oregon chemist Geraldine Richmond, have tapped ... synthetic proteins called peptoid nanosheets that mimic complex ... detailed this week in a paper placed online ... the National Academy of Sciences -- is ... two-dimensional peptoid nanosheets that can be used in ...
(Date:9/2/2014)... , Sept. 2, 2014  TransCelerate BioPharma ... a recommended approach for protecting personal data in ... researchers, patients and others. The document describes an ... information from CSRs and other related clinical trial ... The goal of the TransCelerate CSR Redaction ...
(Date:9/2/2014)... 02, 2014 Opertech Bio, Inc., ... efficient, cost effective approach to sensory evaluation, today ... by the U.S. Patent and Trademark Office, encompassing ... , “Opertech’s taste evaluation technology called Microtiter ... high throughput system for rapid characterization of taste ...
(Date:9/2/2014)... 2014 /PRNewswire/ - Oncothyreon Inc. (Nasdaq: ONTY ) announced ... Executive Officer, will present at the Rodman & Renshaw 16 ... York on Tuesday, Sept. 9, 2014 at 2:05 ... of the presentation will be accessible by visiting the Oncothyreon ... About Oncothyreon Oncothyreon is ...
Breaking Biology Technology:UO-Berkeley Lab unveil new nano-sized synthetic scaffolding technique 2TransCelerate BioPharma Inc. Releases Recommended Approach for Protecting Personal Data in Clinical Study Reports 2TransCelerate BioPharma Inc. Releases Recommended Approach for Protecting Personal Data in Clinical Study Reports 3Opertech Bio Receives U.S. Patent for High-Throughput Taste Evaluation Technology 2
... drug discovery and development services, cell lines, and reagents ... Feb. 26 The leading experts in ion channels ... discovery, development, and safety - are now united. ChanTest, ... validated cell lines, announced that it has acquired Rockville, ...
... the availability of Trade Alerts on stocks making news today. ... free by visiting: http://www.BeaconEquity.com/m Today,s Trade Alerts include: ... Industries Ltd. (Nasdaq: TEVA ), Allergan Inc. (NYSE: ... ), Vertex Pharmaceuticals Inc. (Nasdaq: VRTX ) and ...
... announced today that it has received U.S. Food and ... using the Biomerix Biomaterial(TM), REVIVE acts as a tissue ... in a variety of soft tissue repair procedures, including ... procedures per year, inguinal hernia repair is one of ...
Cached Biology Technology:ChanTest Acquires Applied Cell Sciences 2ChanTest Acquires Applied Cell Sciences 3ChanTest Acquires Applied Cell Sciences 4Beacon Equity Issues Technical Trade Alerts on Drug Manufacturer Stocks: FRX, TEVA, AGN, CEPH, VRTX, ADLR 2Biomerix Corporation Announces FDA Clearance and Market Launch of REVIVE(TM) for Use in Soft Tissue Repair Procedures 2
... Pig serum is collected from fasted Guinea Pigs. ... Citrate N-04: Heparin (Na) N-06: ... N-10: EDTA (Na) N-03: Alsevers ... N-09: K3EDTA N-11: Heparin ...
GENOMIPHI V2 DNA AMP KIT 25RXN, 1 EA. Category: Genomics DNA Amplification....
EPH electrode, anode, 1. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
... precipitation offers major advantages over other RNA precipitation ... protein or carbohydrates. It is the method of ... synthesis from RNA preparations. Note, LiCl precipitation may ... isolations. If the RNA is to be used ...
Biology Products: