title: EPR as an analytical tool in assessing the mineral nutrients and irradiated food products-vegetables.
abstract: EPR spectral investigations of some commonly available vegetables in south India, which are of global importance like Daucus carota (carrot), Cyamopsis tetragonoloba (cluster beans), Coccinia indica (little gourd) and Beta vulgaris (beet root) have been carried out. In all the vegetable samples a free radical corresponding to cellulose radical is observed. Almost all the samples under investigation exhibit Mn ions in different oxidation states. The temperature variation EPR studies are done and are discussed in view of the paramagnetic oxidation states. The radiation-induced defects have also been assessed by using the EPR spectra of such irradiated food products.
authors: Department of Physics, Sri Venkateswara University, Tirupati 517 502, India.
authors: C P Lakshmi
authors: CP
authors: Prasuna
authors: R P S
authors: RP
authors: Chakradhar
authors: J L
authors: JL
authors: Rao
authors: N O
authors: NO
authors: Gopal
mesh_terms: D027461:Beta vulgaris / Q000737:chemistry / Q000528:radiation effects; D002482:Cellulose / Q000737:chemistry / Q000528:radiation effects; D019662:Cucurbitaceae / Q000737:chemistry / Q000528:radiation effects; D031293:Cyamopsis / Q000737:chemistry / Q000528:radiation effects; D018552:Daucus carota / Q000737:chemistry / Q000528:radiation effects; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*; D005514:Food Irradiation; D005609:Free Radicals / Q000032:analysis; D006358:Hot Temperature; D007194:India; D008345:Manganese / Q000032:analysis / Q000737:chemistry; D008903:Minerals / Q000032:analysis*; D010084:Oxidation-Reduction; D014675:Vegetables / Q000737:chemistry* / Q000528:radiation effects*
chemical_list: D005609:Free Radicals; D008903:Minerals; D008345:Manganese; D002482:Cellulose