Raw material originating from either entire males or immunocastrates were processed to dry-cured ham applying different salting duration. Differences in meat properties, processing losses and final product quality (chemical composition, rheological parameters, sensory traits, volatile profile and boar taint) were evaluated. Whereas there was a strong influence of salting regime observed (reflected in salt content, proteolysis, sensory and volatile profile), the effect of sex category was less evident. Still, hams from entire males exhibited higher muscularity, higher processing losses and salt intake, and were drier, less marbled, and more intensively coloured than hams from immunocastrates. It was also discovered that despite a decrease of skatole and androstenone levels during the seasoning process, boar taint may still be an issue in dry-cured hams. Namely, high correlation between these compounds and off-flavours detected by the sensory panel.
COBISS.SI-ID: 4781416
The carbon footprint of agricultural products is one of main measures for monitoring the efficiency and sustainability of agricultural productivity processes. A model calculation of the carbon footprint in the agricultural sector was developed in order to calculate the carbon footprint of grains, fruits, and other agricultural products based on a calculation of total greenhouse gas emissions resulting from production, from the beginning of the production process to storage and delivery to the final consumer or the food industry. The fuel consumption of tractors with various connected machines and self-propelled work machines were measured. The results of the model calculation of the carbon footprint of agricultural products consider the type of farming production for three different sizes of farms and two scenarios regarding soil tillage and seeding.
COBISS.SI-ID: 29977639
Four apple cultivars grown in organic and integrated production systems were analysed according to their inner and outer fruit properties. The content of polyphenols and antioxidative value were searched in fruits together with commercial value of fruits (firmness, color, size...) and their sensorial properties.
COBISS.SI-ID: 4220776
We monitored the levels of pesticide residues (GC-MS and LC-MS-MS), copper (FAAS), biogenic amines (HPLC-DAD), volatile phenols (SBSE-GC-MS) and microbiological quality (membrane filtration) in bottled Cviček and Blaufränkisch wines in two consecutive years. The concentrations of pesticide residues in samples did not exceed the proposed maximum residue limits (MRLs). Copper levels in the Cviček wines were definitely too high and 17 samples in 2008 and seven in 2009 exceeded the MRL. The microbiological stability of the wines was poor and should be improved. However, the levels of biogenic amines in the traded Cviček and Blaufränkisch wines were low. Furthermore, we only detected 4-ethylguaiacol and 4-ethylphenol above the LOQ (limit of quantification) in three Blaufränkisch wines.
COBISS.SI-ID: 4131688
Grape berries were classified according to diameter and total soluble solids to study the effect of light and temperature on methoxypyrazines, glutathione (GSH), and hydroxycinnamates (HCAs) during the ripening of Sauvignon blanc. The light exposure of the fruiting zone was modified within leaf removal. In comparison to the control, the concentration of 3-isobutyl-2-methoxypyrazine (IBMP) was below the limit of detection in leaf removal 2 weeks before harvest. Leaf removal had no significant influence on GSH and HCAs in the grape juice at harvest. Berry diameter significantly influenced the concentration of IBMP in the grape juice and did not influence the concentration of GSH and HCAs.
COBISS.SI-ID: 3918184
Common ragweed is an important annual weed in crop production, and is also considered to be a serious public health problem. Determination of common ragweed growth under various nitrogen (N) rate and plant density could aid the development of an integrated control program. Greenhouse and field experiments were conducted to determine the effects of N fertilizer and density on common ragweed growth and seed production.
COBISS.SI-ID: 3849832
The addition of different concentrations of hydrolyzable tannins in the diet of boars was investigated. It was shown that only the largest concentration of added tannins (3%) reflected in reduced feed intake, while triggering intense adaptive response in the salivary glands. The most important finding of this study is related to the metabolism of skatole. It was demonstrated that the tannins reduce skatole synthesis in the intestine and affect the activity of hepatic CYP450 enzymes, which are important for the metabolism of boar taint and its deposition in adipose tissue.
COBISS.SI-ID: 4650600
The aim of this study was to predict the fatty acid (FA) composition of bulk milk using data describing farming practices collected via on-farm surveys. The FA composition of 1,248 bulk cow milk samples and the related farming practices were collected from 20 experiments led in 10 different European countries at 44° N to 60° N latitude and sea level to 2,000 m altitude. Farming practice-based FA predictions were good for C16:0, C17:0, saturated FA, polyunsaturated FA, and oddchain FA, and very good for trans-11 C18:1, trans-10 + trans-11 C18:1, cis-9, trans-11 conjugated linoleic acid, total trans FA, C18:3n- 3, n-6:n-3 ratio, and branched-chain FA. Fatty acids were predicted by cow diet composition and by the altitude at which milk was produced, whereas animal-related factors (i.e., lactation stage, breed, milk yield, and proportion of primiparous cows in the herd) were not significant in any of the models. Proportion of fresh herbage in the cow diet was the main predictor, with the highest effect in almost all FA models. However, models built solely on conserved forage-derived samples gave good predictions for odd-chain FA, branched-chain FA, trans-10 C18:1 and C18:3n-3. These prediction models could offer farmers a valuable tool to help improve the nutritional quality of the milk they produce.
COBISS.SI-ID: 4183656
During the spring of 2013 increased hydroxymethylfurfural (HMF) concentrations were determined in sugar candies available on the market. This substance could have potantial detrimental effect on honey bee longevity. The present research associated lower survival rate of the worker bees, fed commercially available sugar candies containing high (i.e. 914.6 or 437.0 mg /kg) HMF levels, as compared to commercial or home-made low (i.e. 58.3 mg/kg or (10.0 mg/kg) HMF product.
COBISS.SI-ID: 4546408
The book on Slovenian soils is a review of what kind, where, and how much soil is available in Slovenia; what the major threats to soils are, what the main research activities are, as well as what the status of the available soil information is. The purpose of the book is to provide an overview of the state of Slovenian soils and a comparison in the international context. Additionally, it should serve as an important summary that can be used to direct the soil survey, soil research, data collection, and data processing towards designing sustainable soil management.
COBISS.SI-ID: 5241192