@conference{
author = "Stojanović, Milica and Maksimović, Vuk and Moravcevic, Djordje and Radović, Ivana and Cvijanović, Gorica and Savic, Sladjana and Dragišić Maksimović, Jelena",
year = "2018",
abstract = "Lettuce (Lactuca sativa, L.) is an annual, cool season crop belonging to Asteraceae family and to a group of leafy
vegetables. It is rich in minerals, vitamins and antioxidative compounds which are essential for human nutrition. The
advantage of lettuce, as eaten raw, is that maintains more nutrients than other cooked vegetables. Lettuce is low in
calories and it is suggested to diabetics, people with sleep problems and disturbed metabolism. Growers are interested
in cultivating lettuce because of their short vegetation period and opportunity to cultivate in all seasons. The purpose
of this study was to examine the effect of microbiological fertilizer Em Aktiv (Candor) on the total phenolic content
(TPC) in six lettuce cultivars. Cultivars (′Kiribati′, ′Murai′, ′Aquino′, ′Gaugin′, ′Aleppo′, ′Carmesi′- Rijk Zwaan) were
grown in the fertile soil in a greenhouse experiment during three successive seasons (autumn, winter and spring). Total
phenolic content ranged between 175.85-372.73 μg GAE/g FW in autumn, 104.12-522.74 μg GAE/g FW in winter
and 88.88-340.93 μg GAE/g FW in spring. Our results indicated that red cultivars mainly had higher total phenolic
content compared to green cultivars with the exception in autumn experiment. Among all seasons, control treatment
of cultivar ′Carmesi′ showed the highest total phenolic content (522.74 μg GAE/g FW) in winter. The effect of
fertilizer Em Aktiv on TPC in different cultivars was to some extent positive in spring and autumn, but even negative
during winter season. Such a complex response indicates the need for careful selection of varieties and fertilizers in
relation to the season. To conclude, red cultivars were pointed out with higher total phenolic content and they could
be recommended as a great source of bioactive compounds for healthy human diet., Salata (Lactuca sativa, L.) je jednogodišnja vrsta, prohladne klime koja pripada familiji Asteraceae i grupi lisnatog
povrća. Bogata je mineralima, vitaminima, antioksidantima koji su neophodni u ljudskoj ishrani. Prednost salate, kao
sirovog povrća, je da sadrži više hranljivih materija u odnosu na drugo termički obrađeno povrće. Salata ima nisku
kalorijsku vrednost i preporučuje se u ishrani dijabetičara, ljudi sa poremećenim ritmom spavanja i metabolizma.
Proizvođači su zainteresovani za gajenje salate zbog kratkog vegetacionog perioda i mogućnosti gajenja tokom cele
godine. Cilj ovog istraživanja bio je da se utvrdi uticaj mikrobiološkog đubriva Em Aktiv (Candor) na sadržaj ukupnih
fenola (TPC) kod šest sorti salate. Sorte (′Kiribati′, ′Murai′, ′Aquino′, ′Gaugin′, ′Aleppo′, ′Carmesi′- Rijk Zwaan) su
gajene na plodnom zemljištu u plasteniku tokom tri uzastopne sezone (jesen, zima i proleće). Sadržaj ukupnih fenola
kretao se u jesen između 175.85-372.73 μg GAE/g FW, u zimu 104.12-522.74 μg GAE/g FW i u proleće 88.88-340.93
μg GAE/g FW. Rezultati ukazuju da su crvene sorte uglavnom pokazale veći sadržaj ukupnih fenola u odnosu na
zelene sorte sa izuzetkom jesenjeg ogleda. Među svim sezonama, najveći sadržaj ukupnih fenola određen je u kontroli
kod sorte ′Carmesi′ (522.74 μg GAE/g FW) u zimskom ogledu. Uticaj đubriva Em Aktiv na sadržaj ukupnih fenola,
kod različitih sorti salate, u određenom opsegu bio je pozitivan u proleće i jesen pa čak i negativan tokom zime. Ovako
složen odgovor ukazuje na potrebu za pažljivim odabirom varijeteta salate i đubriva u odnosu na sezonu. Na osnovu
dobijenih rezultata može se zaključiti da su crvene sorte salate pokazale veći sadržaj ukupnih fenola i mogu se
preporučiti kao izvor bioaktivnih supstanci u zdravoj ishrani.",
publisher = "Univerzitet u Beogradu",
title = "Seasonal variation of total phenolic content in six lettuce cultivars grown with microbiological fertilizer",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1865"
}
