HOME >> BIOLOGY >> NEWS
Grape expectations for healthier wine

A new technique that uses ozone to preserve grapes could help prevent allergies and boost healthy compounds at the same time, reports Jennifer Rohn in Chemistry & Industry, the magazine of the SCI. The same technique could be used in the wine-making process to produce healthier wines without the added sulphites that can cause asthma and other conditions in some people.

Mass-marketed grapes can remain in storage for months and are usually treated with sulphur dioxide to prevent decay. Although the sulphur dioxide is effective, it is corrosive and can cause severe allergic reactions in some people. Wine-makers have a similar problem in that the sulphites added to wines to prolong their shelf-life and allow them to age can make their wines unpalatable to some drinkers.

Francisco Artes-Hernandez and his team at the Technical University of Cartagena in Spain compared several different preservative methods with a new technique that involves exposing macroperforated packages of grapes at 0 degress C to cycles of 0.1 micro liters per liter of ozone. They found that ozone treatment was 90% as effective as SO2 at preventing decay. In addition, ozone-treated grapes had up to four times more antioxidants than untreated grapes (Journal of the Science of Food and Agriculture, doi 10.1002/jsfa.2780).

It is not yet known why antioxidant levels increase, but because these compounds are up-regulated in response to environmental stress in plant cells, it could be that the ozone is perceived as a biochemical insult.

Andrew Waterhouse, Chair of the Department of Viticulture at University of California, Davis, said that because wine growers don't store grapes for prolonged periods, they are unlikely to use ozone in any preservation process. He agreed, however that the ozone process could be tweaked to replace problematic sulphites added to wine during the liquification process, presenting the possibility of healthier more hypoallergenic wines
'"/>

Contact: Lisa Richards
press@soci.org
44-020-759-81548
Society of Chemical Industry
11-Feb-2007


Page: 1 2

Related biology news :

1. Grapes, soy and kudzu blunt some menopausal side effects
2. Grape seed extract halts cell cycle, checking growth of colorectal tumors in mice
3. Grid expectations for networked computing: From global Earth monitoring to black hole detection
4. Super fruit fly may lead to healthier humans
5. Chemists create healthier pizza by boosting antioxidants in dough
6. Cloudy apple juice four times healthier than clear
7. Govt data: 100 percent juice consumption linked to healthier diet, no link to obesity in kids
8. Seaweed could make junk food healthier
9. Scientists and the UK Kennel Club work together for healthier dogs and people

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


(Date:9/7/2018)... ... September 06, 2018 , ... Sensors Midwest ... show Sensors Expo & Conference , announces their partnership with Fraunhofer USA ... an IoT Enabled Industrial IoT Certification Program. Taking place on October 17, 2018 ...
(Date:8/31/2018)... ... August 30, 2018 , ... In ... a component of drug discovery programs. Longer-target engagement can result in improved efficacy ... throughput, require expensive instrumentation, or require the alteration of the molecules involved. The ...
(Date:8/29/2018)... ... August 28, 2018 , ... ... power of positron emission tomography (PET), today launched its proprietary radiolabeling platform. ... clinicians and researchers study and cure debilitating diseases, earlier, and with unprecedented ...
Breaking Biology News(10 mins):
(Date:9/7/2018)... , ... September 06, 2018 , ... ... from September 25th-28th is a meeting of “The industry’s preeminent event on novel ... drug discovery scientists powerful tools to study these emerging targets in a quest ...
(Date:9/7/2018)... (PRWEB) , ... September 06, 2018 , ... ... a fatal neuromuscular disease, has been validated to be as effective as manual ... of Dystrophin Staining in Frozen Muscle Biopsies,” was published in the Archives of ...
(Date:9/1/2018)... ... August 31, 2018 , ... Rudina Thanasi, a scientifically validated ... biofield energy treated nutraceutical supplement used in combating inflammation and autoimmune disorders. ... as well as, organ-specific inflammation. The reported data is as follows: , ...
(Date:8/31/2018)... ... ... Small, wireless and networked describes more than the latest household gadget. ... system is tiny in size, but is poised to make a big impact in ... design is the growing awareness that disease often involves complex interactions between multiple systems ...
Breaking Biology Technology:
Cached News: