In this study, the morphological, pomological, and nutritional values of wild and cultivated rosehip fruits grown in the Slavonia region of eastern Croatia were studied. The results revealed significant differences in several morphological and pomological characteristics among the rosehip genotypes in terms of fruit weight, flesh weight, seed weight, and fruit flesh ratio, with no significant differences in fruit width, fruit length, fruit shape index, seed number per fruit, or seed length. The evaluated rosehip fruit genotypes differed significantly from each other in terms of hectoliter weight (kg), fruit bulk (cm3), and bulk density (kg/m3). For water–soluble extracts, ash, and pH, no statistical difference was found between naturally grown genotypes, but there was a significant difference between naturally grown and cultivated genotypes. Twenty-three major and trace elements were analyzed. The most abundant elements were K, Ca, Mg, and P in both cultivated and naturally grown fruits. The highest concentrations of microelements were Fe, Al, Mn, and Sr. The conventionally cultivated genotype L1 had the highest concentration of Fe and Na as essential elements for humans but also had the highest concentrations of Al, Sr, Ti, V, Cr, Pb, Co, Li, and As of all the genotypes studied. The naturally grown genotype L4 had the highest concentrations of S, Zn, Rb, and Cd and the lowest concentrations of Mg, K, and Ca among all studied genotypes. The data showed that the analyzed genotypes from eastern Croatia had good nutritional quality and variability, making them suitable as genetic resources and possibly leading to the detection of rosehip genotypes as potential sources of beneficial ingredients for human health.

It is recommended to eat blue fish at least twice a week, due to its high nutritional value and ingredients, primarily healthy fats and proteins. In addition to its advantages, the consumption of fish and fish products can bring potential hazards. Histamine poisoning has been reported as one of the most common issues related to seafood consummation. It is considered as relatively mild illness with symptoms like rash, urticaria, nausea, vomiting, but in some cases, due to high sensitivity, it can lead to severe symptoms and even to death. In order to insure safety of fish products, histamine determination is one of the safety requirements of European and Croatian legislation (Law on food hygiene and microbiological criteria for food, NN 83/2022). Despite that, there has been several recalls of fish products by Ministry of Agriculture from Croatian market in recent years. The aim of this paper was to determine histamine levels in 20 different products from Croatian retail stores by HPLC method. All tested samples have been in accordance with legally determined limits for histamine levels.

Istraživanje je provedeno u vinogorju Kutjevo na položajima: Škomić, Vetovo, Hrnjevac, Vinkomir i Oljasi, na sorti Graševina tijekom 2020. godine. Položaji Vetovo, Hrnjevac i Vinkomir nalaze se na nadmorskim visinama iznad 300 metara dok su Škomić i Oljasi na oko 200 metara nadmorske visine na plodnijim tlima. Cilj istraživanja je bio prikazati utjecaj pojedinog položaja na dinamiku dozrijevanja grožđa i kakvoću mošta kroz osnovne parametre koji se danas najčešće koriste za određivanje tehnološke zrelosti grožđa. Uzorkovanje je obavljeno kroz prva dva tjedna rujna obzirom na klimatske prilike i ubrzano dozrijevanje grožđa. Pokus je postavljen po slučajnom bloknom rasporedu u tri repeticije. Fizikalno kemijske analize uzoraka obavljene su na uređaju WineScan u laboratoriju Kutjeva d.d.. Utvrđene su razlike u sadržaju šećera i ukupne kiselosti. Mošt Graševine s položaja Škomić imao je najniži sadržaj šećera tijekom cijelog perioda dozrijevanja i najveću ukupnu kiselost. Razlike u pH vrijednosti između položaja nisu utvrđene.