HOME >> BIOLOGY >> NEWS
Food fried in vegetable oil may contain toxic compound

MINNEAPOLIS / ST. PAUL-- University of Minnesota researchers A. Saari Csallany, a professor of food chemistry and nutritional biochemistry, and graduate student Christine Seppanen have shown that when highly unsaturated vegetable oils are heated at frying temperature (365 F) for extended periods--or even for half an hour--a highly toxic compound, HNE (4-hydroxy-trans-2-nonenal) forms in the oil. Previously, vegetable oils such as soybean, sunflower and corn were regarded as heart-healthy because of their high levels of linoleic acid, a polyunsaturated fatty acid. HNE is incorporated into fried food in the same concentration as it forms in the heated oil. Also, Csallany and her colleagues have found three toxic HNE-related compounds (known as HHE, HOE and HDE) in heated soybean oil. They will present their work at a poster session from 9 a.m. to 2 p.m. Wednesday, May 4, at the 96th annual meeting of the American Oil Chemists Society in the Salt Lake City Convention Center.

"HNE is a well known, highly toxic compound that is easily absorbed from the diet," said Csallany. "The toxicity arises because the compound is highly reactive with proteins, nucleic acids--DNA and RNA--and other biomolecules. HNE is formed from the oxidation of linoleic acid, and reports have related it to several diseases, including atherosclerosis, stroke, Parkinson's, Alzheimer's, Huntington's and liver diseases."

Csallany's work underscores the risk of repeated heating, or reusing, highly unsaturated oils for frying because HNE accumulates with each heating cycle. In future studies, Csallany and her colleagues plan to determine how long polyunsaturated oil must be heated at lower temperatures in order to form HNE and its related compounds. The study was funded by the University of Minnesota.


'"/>

Contact: Deane Morrison
morri029@umn.edu
612-624-2346
University of Minnesota
2-May-2005


Page: 1

Related biology news :

1. Tom Siegfried wins AGUs Cowen Award for Sustained Achievement in Science Journalism
2. More fish oil, less vegetable oil, better for your health
3. Food safety begins as vegetables grow
4. Researcher focuses on pros, cons of antioxidants from fruits and vegetables
5. Nutrients in certain vegetables may provide cancer-fighting benefit
6. A vegetable fiber from tomato which can be used in making functional meat and bakery foods
7. Study shows fruit and vegetable juice consumption may reduce risk of Alzheimers disease
8. Healthy fruits, vegetables highlight joint medical, agricultural research meet in Texas
9. Leafy green vegetables may help keep brains sharp through aging
10. Aloe vera coating may prolong freshness, safety of fruits and vegetables
11. Scientists identify genes responsible for black rot disease in vegetables

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/26/2016)... DUBLIN , April 27, 2016 ... of the  "Global Multi-modal Biometrics Market 2016-2020"  report ... ) , The analysts forecast ... a CAGR of 15.49% during the period 2016-2020.  ... a number of sectors such as the healthcare, ...
(Date:4/15/2016)...  A new partnership announced today will help ... in a fraction of the time it takes ... life insurance policies to consumers without requiring inconvenient ... Diagnostics, rapid testing (A1C, Cotinine and HIV) and ... weight, pulse, BMI, and activity data) available at ...
(Date:4/14/2016)... , April 14, 2016 ... Malware Detection, today announced the appointment of Eyal ... new role. Goldwerger,s leadership appointment comes at ... heels of the deployment of its platform at several ... biometric technology, which discerns unique cognitive and physiological factors, ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... June 23, 2016 Houston Methodist Willowbrook ... Cy-Fair Sports Association to serve as their official ... Houston Methodist Willowbrook will provide sponsorship support, athletic ... with association coaches, volunteers, athletes and families. ... Cy-Fair Sports Association and to bring Houston Methodist ...
(Date:6/23/2016)... , June 23, 2016   EpiBiome , a ... $1 million in debt financing from Silicon Valley Bank ... automation and to advance its drug development efforts, as ... facility. "SVB has been an incredible strategic ... services a traditional bank would provide," said Dr. ...
(Date:6/23/2016)... 2016 Apellis Pharmaceuticals, Inc. today announced ... of its complement C3 inhibitor, APL-2. The trials ... dose studies designed to assess the safety, tolerability, ... in healthy adult volunteers. Forty subjects ... single dose (ranging from 45 to 1,440mg) or ...
(Date:6/23/2016)... ... June 23, 2016 , ... ClinCapture, the only ... Center and will showcase its product’s latest features from June 26 to June ... scientific poster on Disrupting Clinical Trials in The Cloud during the conference. ...
Breaking Biology Technology:
Cached News: