20.500.12556/DKUM-56830 Strawberries from integrated and organic production mineral contents and antioxidant activity As the nutritional quality of food is becoming increasingly more important forconsumers, significant attention needs to be devoted to agricultural practices and their influences on the nutrient contents in food. The presentedinvestigation studied the mineral contents and antioxidant activitiesin the fruits of four organically-grown strawberry cultivars 'St. Pierre', 'Elsanta', 'Sugar Lia' and 'Thuchampion' when compared to those of integrated-grown plants. The strawberries were digested and analyzed for K, Mg, Fe, Zn, Cu, and Mn using an atomic absorption spectrometer, whilst P was analyzed using a vanadate-molybdate method. In addition, antioxidant activity was estimated by using the ABTS assay. The results showed that the mineral contents and antioxidant activities in strawberries depends on the cultivar, and its production system. Organically-grown fruits showed higher antioxidant activities and Cu content than the integrated fruits, whilst the integrated fruits were superior in their contents of P, K, Mg, Fe and Mn. All the cultivars showed similar Zn content, probably reflecting the fact that the Zn content in strawberries does not depend on the cultivar. Hranilna vrednost živil postaja za potrošnike vedno bolj pomembna, zato je potrebno nameniti pozornost načinom pridelave in njihovim vplivom na vsebnost različnih hranil v živilih. Raziskovali smo vsebnost mineralov in antioksidativni potencial štirih ekološko pridelanih kultivarjev jagod »St. Pierre«, »Elsanta«, »Sugar Lia« in primerjali vrednosti z jagodami iz integrirane pridelave. Naredili smo kislinski razklop jagod in v raztopinah določili vsebnost K, Mg, Fe, Zn, Cu in Mn z atomsko absorpcijsko spektrometrijo. Vsebnost P smo določali po vanadat-molibdat metodi. Antioksidativni potencial ekstraktov jagod smo ocenili z ABTS metodo. Rezultati so pokazali, da je na vsebnost mineralov in na antioksidativni potencial vplival kultivar in način pridelave. Ekološko pridelane jagode so imele višji antioksidativni potencial in višjo vsebnost Cu, medtem ko so jagode iz integrirane pridelave vsebovale več P, K, Mg, Fe in Mn. Vsi kultivarji so imeli podobno vsebnost Zn, kar nakazuje, da njegova vsebnost v jagodah verjetno ni odvisna od kultivarja. strawberries minerals antioxidant activity production system jagode ekološka proizvodnja integrirana proizvodnja antioksidanti analizna kemija true false true Angleški jezik Slovenski jezik Znanstveno delo 2015-12-30 12:28:27 2015-12-30 12:28:28 2022-06-12 03:06:37 2021-05-15 03:33:24 2013 0 0 str. 19-25 št. 1 Letn. 60 2013 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1318-0207 634.75:631.147:543 14086149 3490604 1318-0207 URN:SI:UM:DK:X8HTLGNM Acta_Chimica_Slovenica_2013_Kristl_et_al._Strawberries_from_integrated_and_organic_production_mineral_contents_and_antioxidant_activity.pdf Acta_Chimica_Slovenica_2013_Kristl_et_al._Strawberries_from_integrated_and_organic_production_mineral_contents_and_antioxidant_activity.pdf 1 B1F3A476195CD2241E294976495B08AD 29b99a955bf15190cf24452ceac685dbf307655a4d68d0b8ade28668e08bfb6d 900bbbd1-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=116043 http://acta-arhiv.chem-soc.si/60/60-1-19.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=85035 Fakulteta za kmetijstvo in biosistemske vede 0 0 0