A5019612958- Fermentation and Sensory Analysis
- Horticultural and Viticultural Research
- Phytochemicals and Antioxidant Activities
- Meat and Animal Product Quality
- Biochemical and biochemical processes
- Food Quality and Safety Studies
- Plant Physiology and Cultivation Studies
- Nanoparticles: synthesis and applications
- Bee Products Chemical Analysis
- Nuts composition and effects
- Fungal Biology and Applications
- Tea Polyphenols and Effects
- Plant biochemistry and biosynthesis
- Essential Oils and Antimicrobial Activity
- Electrochemical sensors and biosensors
- Wine Industry and Tourism
- Advanced Chemical Sensor Technologies
- Plant responses to elevated CO2
- Heavy Metals in Plants
- Selenium in Biological Systems
- Sensory Analysis and Statistical Methods
- Trace Elements in Health
- Phytochemistry and Biological Activities
- Botanical Studies and Applications
- Antioxidant Activity and Oxidative Stress
Mendel University in Brno
2016-2025
Public Health Dayton & Montgomery County
2024
Universitat Politècnica de València
2020
Svaz Vinařů České Republiky
2013-2014
McGill University Health Centre
2010
One approach for solving the problem of antibiotic resistance and bacterial persistence in biofilms is treatment with metals, including silver form nanoparticles (AgNPs). Green synthesis an environmentally friendly method to synthesize a broad spectrum unique properties that depend on plant extracts used. AgNPs antibacterial antibiofilm effects were obtained using green from Lagerstroemia indica (AgNPs_LI), Alstonia scholaris (AgNPs_AS), Aglaonema multifolium (AgNPs_AM). Nanoparticles...
The Erzincan plain is one of the richest regions in Turkey terms plant biodiversity. In this region, famous grape cultivar ‘Karaerik’ has always dominated production due to its berry characteristics. shows great morphological variation at clonal level. study, total phenolic content and antioxidant activity peel, pulp seed extracts nine clones sampled from same location were investigated. Folin–Ciocalteu method was used determine clones. To activity, three well known assays such as DPPH...
This study focuses on the impact of new methods for inhibiting malolactic fermentation in white wines their analytical and sensory properties. Enological preparations with different mechanisms effect were tested: fumaric acid, chitosan, Estaan (a preparation based tannin inhibition), medium-chain fatty acids (MCFAs), sulphur dioxide a control variant. Malolactic (MLF) was also performed. The samples underwent analysis through HPLC (high-performance liquid chromatography) to determine...
Total lipid contents of green (Chlorella pyrenoidosa, C), red (Porphyra tenera, N; Palmaria palmata, D), and brown (Laminaria japonica, K; Eisenia bicyclis, A; Undaria pinnatifida, W, WI; Hizikia fusiformis, H) commercial edible algal cyanobacterial (Spirulina platensis, S) products, autotrophically cultivated samples the microalga Chlorella kessleri (CK) cyanobacterium Spirulina platensis (SP) were determined using a solvent mixture methanol/chloroform/water (1:2:1, v/v/v, I) n-hexane...
The paper deals with the study of antioxidant properties extracts from vine seeds (Vitis vinifera L.) using spectrometric and chromatographic techniques. Ten varieties (Cerason, Laurot, Kofranka, Gewürztraminer, Hibernal, Blaufrankisch, Zweigeltrebe, Erilon, Palava, Welschriesling) obtained years 2015, 2016, 2017 were selected for study. activity was determined spectrophotometrically four fundamentally different methods; content total polyphenolic compounds Folin–Ciocalteu method. In 14...
Grapes are sensitive to early autumn and spring low temperature damage. The current study aimed assay the effects of cold stress (+1 °C for 4, 8, 16 h) on three grapevine cultivars (Ghiziluzum, Khalili, Perllete). results showed that caused significant changes in antioxidant biochemicals content studied cultivars. Furthermore, examining chlorophyll fluorescence indices, a increase minimal (F0), decrease maximal (Fm), maximum photochemical quantum yield photosystem II (Fv/Fm) all Among...
Ornamental edible flowers can be used as novel nutraceutical sources with valuable biological properties. The purpose of this study was to establish nutritional, chemical, and sensory characteristics, antioxidant capacity (AC), the relationship between their bioactive components AC. selected Begonia × tuberhybrida, Tropaeolum majus, Calendula officinalis, Rosa, Hemerocallis, Tagetes patula, easily collected due larger size. Their methanolic extracts were spectrophotometrically determined for...
A wine’s aroma profile is an important part of the criteria affecting wine acceptability by consumers. Its characterisation complex because volatile molecules usually belong to different classes such as alcohols, esters, aldehydes, acids, terpenes, phenols and lactones with a wide range polarity, concentrations undesirable off-aromas. This review focused on mechanisms conditions formation individual compounds in esters higher alcohols yeast during fermentation. Additionally, losses...
Ascorbic acid (AA) is a water-soluble vitamin essential in the human nutrition, an antioxidant, scavenger of free radicals biological systems and cofactor several enzymes. For precise detection AA concentration samples there important option determination method. To most common exact methods for evaluation belong HPLC techniques with UV electrochemical detection, (EM). EM are simple, sensitive, moderate methods. different types electrodes suitable, lately used especially various chemically...
The study assessed the yield and quality as well energy potential of biomass from stalks pomace four grape varieties, Riesling, Chardonnay, Zweigelt, Merlot Vitis vinifera L., grown in temperate climate conditions. research is innovative because evaluation originating L. has not been carried out so far northern wine-growing regions. Field studies were conducted 2023 Experimental Vineyard University Life Sciences Lublin, located southeastern Poland. Biometric assessment showed that Chardonnay...
In a three-year field experiment (2011-2013) we assessed the effect of magnesium (MgSO4) and potassium (K2SO4) applied as foliar applications both separately (3.86 kg Mg/ha or 12.44 K/ha) in combination (1.93 + 6.22 on yields grapes cv. Zweigelt some qualitative parameters grapes. The were repeated 4 times stages BBCH 15-19; 55; 75 83. was carried out soil well supplied with Mg K subsoil layer. terms average 3-year results grape by 11.2% (MgSO4), 13.9% 6.6% (MgSO4 K2SO4) significantly higher...
This review provides an overview of the variety occurrences, content, extraction and health effects selected polyphenolic compounds associated with different parts grapevine (seeds, peel, pulp stems). The a brief characterisation grape parts, content their together graphical forms presentation diversity as determined by studies. individual differed Effects factors were evident in both growing style geographical location vineyards well methods analytical conditions.
Objectives. The aetiology of RA is unknown; however, bacterial exposure, particularly to Escherichia coli, Proteus mirabilis and Klebsiella pneumoniae, has been linked disease pathogenesis. strongest association was observed for RF+ RA. We compare colonization patterns these bacteria, the anti-bacterial antibody levels in early onset RF− inflammatory arthritis. Methods. Bacteria isolated from stool urine early-stage patients recruited Early Arthritis Registry were biochemically identified...
During alcoholic fermentation, a considerable amount of carbon dioxide (CO2) is produced, and the stream CO2 can strip aromatic substances from fermenting must. Aroma losses during fermentation be significant may lead to reduction in wine quality. This study focused on new gas capture technology. In experiment, was captured sauvignon blanc The concentration individual volatile compounds determined using chromatography, highest values were achieved by isoamyl acetate, alcohol ethyl decanoate....
The aim of the study was to determine and compare both technological properties polyphenol content in fruits eight cornellian cherry (Cornus mas L.) cultivars from Czech Republic. cultivar ?Vydubeckij? had highest dry matter (17.4%) soluble solid (15.8%) among searched cultivars. crude protein phosphorus values were determined ?Titus? as 10.9 g 435 mg for per kg fresh weight (FW) base. ?Elegantnyj? are found be more suitable canning industry. contained 10.8 pectin 22.4 citric acid base,...
Abstract This study deals with the determination of content both free and bound terpenes in berries wine aromatic grapevine variety ‘Irsai Oliver’. Grapes were macerated juice for different time intervals (viz. 0; 5; 12; 24 hours) thereafter processed to wine. The objective was map dependence some selected on period maceration. Using gas chromatography, nine organic compounds detected. Attention paid contents linalool (3,7-dimethylokta-1,6-dien-3-ol), 2,6-dimetyl-3,7-octadiene-2,6-diol,...
Minerality is certainly one of the most mysterious and valuable tones wine taste it very often associated with concept terroir. The isotachophoresis was used for determination cations - minerals in two wines from vineyards different soil conditions, without exceptional "minerality". However, found that has nothing to do minerals. More attention paid relationship between nutritional stress yeasts succinic acid production, which can result a final difference wine. In addition, sensory...