Projects / Programmes
The influence of UV - B radiation to antioxidant content and distribution in cultivated plants
Code |
Science |
Field |
Subfield |
7.00.00 |
Interdisciplinary research |
|
|
Code |
Science |
Field |
P300 |
Natural sciences and mathematics |
Analytical chemistry |
P395 |
Natural sciences and mathematics |
Organometallic chemistry |
B191 |
Biomedical sciences |
Plant biochemistry |
B390 |
Biomedical sciences |
Phytotechny, horticulture, crop protection, phytopathology |
cultivated plants, antioxidants, selenium, rutin, UV-B radiation
Researchers (8)
Organisations (3)
Abstract
The increase of UV-B radiation on the Earth surface due to thinning of ozone layer, may have negative effects on organisms, including cultural plants. Substances like flavonoids and selenium scavenge free radicals, which are induced by UV-B radiation. Studied model plants (potato, cabbage, oats, buckwheat, pumpkins and chicory) will be exposed to different levels of UV-B radiation and afterwards the amount of UV absorbing compounds (carotenoids, flavonoids) as well as selenium will be measured to estimate antioxidative status of cultivated plants.
Significance for science
The results of the project are:
- the importance of purity of encyme used for Se speciation. We were the first who varn the scientific comunity on this problem.
- the plant encymatic extracts have to be check to Se species stability,
-mass balance is very important,
-produces Se enriched plants but not contaminate environment
-seeds contain SeMet, leaves and steam contain anorganic Sei
-Se (in appropriate concentration) protects plants before UV-B radiation
It was investigated the interaction of polyphenolic substances, proteins and Se in food materials of plant origin. Metabolic factors were revealed as well. Results were published in major international scientific journals from the field of chemistry, agriculture and food science (see COBISS), a part of results is submitted for publication.
Significance for the country
We developed and optimised the method for determination Se species in plants and we are capable to determine Se species in Se food supplements which overload slovene market. Investigation in Se enriched plants open new possibilities for high quality functional food products in Slovenia. Several new functional nutritional products were already designed in Slovenia, based on the results of this investigation. Some new products are already in Slovenian market, and further new functional food products are expected, based on the results of this project.
Most important scientific results
Annual report
2008,
final report,
complete report on dLib.si
Most important socioeconomically and culturally relevant results
Annual report
2008,
final report,
complete report on dLib.si