Karmela Delonga
University of Zagreb
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Publication
Featured researches published by Karmela Delonga.
Journal of Horticultural Science & Biotechnology | 2012
Ivana Radojčić Redovniković; Mara Bogović; Dubravko Belko; Karmela Delonga; Sanja Fabek; Bruno Novak; Nina Toth
Summary The nutritional value of sweet potato leaves (Ipomoea batatas L.) has recently been emphasised as their anti-oxidant and phenolic compounds can improve human health and provide nutritional benefits. This has increased the interest of the food industry and of consumers in using sweet potato greens as a functional food. To increase the level of phenolic compounds in sweet potato leaves, we studied the influence of potassium (K)-fertilisation at different N:K ratios [namely 1:1 (control), 1:2.5, or 1:5] on the phenolics contents and corresponding anti-oxidant activities of two cultivars of sweet potato, ‘Bat1’and ‘Boniato’. In general, enhanced K-fertilisation increased the level of phenolic compounds and the corresponding anti-oxidant activity. However, the two cultivars differed in their response to K-fertilisation. Phenolic acids were increased (by approx. 20%) in ‘Bat1’ only after the application of N:K at a ratio of 1:5, while K-fertilisation at all rates increased the flavonoid contents of both cultivars (by approx. 300%). Our results could be useful for sweet potato producers who wish to make informed decisions on which cultivar and/or mineral fertiliser regime to choose in order to produce sweet potato leaves of the desired nutritional quality.
Periodicum Biologorum | 2008
Ivana Radojčić Redovniković; Tatjana Glivetić; Karmela Delonga; Jasna Vorkapić-Furač
Food Chemistry | 2005
Jasna Pospišil; Branka Levaj; Karmela Delonga
Journal of Agricultural and Food Chemistry | 2005
Karmela Delonga; Branka Levaj; Senka Djakovic; Jasna Pospišil
International Journal of Food Science and Technology | 2011
Slavica Mazor Jolić; Ivana Radojčić Redovniković; Ksenija Marković; Đurđica Ivanec Šipušić; Karmela Delonga
Czech Journal of Food Sciences | 2018
Ivana Radojčić Redovniković; Karmela Delonga; Slavica MazoR; Marija Carić; Jasna Vorkapić-Furač
Food Technology and Biotechnology | 2010
Branka Levaj; Karmela Delonga; Karin Kovačević Ganić; Mara Banović; Danijela Bursać Kovačević
Acta Alimentaria | 2010
V. Mrkić; I. R. Redovnikovic; S. M. Jolic; Karmela Delonga
Food Technology and Biotechnology | 2008
Ivana Radojčić Redovniković; Petra Peharec; Marijana Krsnik-Rasol; Karmela Delonga; Karolina Brkić; Jasna Vorkapić-Furač
Acta Alimentaria | 2007
Karmela Delonga; I. Radojčić Redovniković; V. Mrkić; Jasna Vorkapić-Furač