Krzysztof Wójcicki

ORCID: 0000-0003-4902-8613
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About
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Research Areas
  • Spectroscopy and Chemometric Analyses
  • Edible Oils Quality and Analysis
  • Meat and Animal Product Quality
  • Advanced Chemical Sensor Technologies
  • Water Quality Monitoring and Analysis
  • Antioxidant Activity and Oxidative Stress
  • Essential Oils and Antimicrobial Activity
  • Engine and Fuel Emissions
  • Phytochemicals and Antioxidant Activities
  • Food Chemistry and Fat Analysis
  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Food Waste Reduction and Sustainability
  • Chemical Thermodynamics and Molecular Structure
  • Tea Polyphenols and Effects
  • Regional Development and Management Studies
  • Fermentation and Sensory Analysis
  • Coffee research and impacts
  • Pomegranate: compositions and health benefits
  • Ginkgo biloba and Cashew Applications
  • Sesame and Sesamin Research
  • Agricultural economics and policies
  • Plant-Derived Bioactive Compounds
  • Global Trade and Competitiveness
  • Flexible and Reconfigurable Manufacturing Systems
  • Isotope Analysis in Ecology

Poznań University of Economics and Business
2012-2024

The fourth industrial revolution taking place in the sector is related to increasing digitization and linkage of goods, products, value chains business models. Industry 4.0 based on global connection people, things machines. By connecting devices sensors internet, we are entering a new era data analysis, connectivity automation. This gives great opportunities for innovation progress, previously unattainable such dimension. term Internet Things (IoT) has spread along with vision world...

10.3390/en15051806 article EN cc-by Energies 2022-02-28

Over the last decades, we have witnessed an increasing interest in food-related products containing vegetable oils. These oils can be obtained either by extraction or mechanical pressing of different parts plants (e.g., seeds, fruit, and drupels). Producers nutraceuticals ceaselessly searched for unique effective natural ingredients. The enormous success argan oil has been followed discoveries other interesting pomegranate oil) several bioactives. This work describes fruit extract seed as a...

10.3390/molecules27185863 article EN cc-by Molecules 2022-09-09

The capability of different spectroscopic techniques in estimation adulteration extra virgin olive oil with mild deodorized and refined oils was investigated. visible absorption ultraviolet–visible fluorescence spectra were distinctly for quality grades. Differences the near‐ mid‐IR less pronounced could only be revealed by principal component analysis. calibration models adulterant blends obtained using partial least squares (PLS) regression (PCR) showed similar performance all examined...

10.1002/ejlt.201300402 article EN European Journal of Lipid Science and Technology 2014-07-16

The aim of this study was to test the usability fluorescence spectroscopy evaluate stability cold-pressed rapeseed oil during storage. Freshly-pressed stored in colorless and green glass bottles exposed light, darkness for a period 6 months. quality deterioration oils evaluated on basis several chemical parameters (peroxide value, acid K232 K270, polar compounds, tocopherols, carotenoids, pheophytins, oxygen concentration) fluorescence. Parallel factor analysis (PARAFAC) excitation-emission...

10.3390/foods8120665 article EN cc-by Foods 2019-12-10

In food industry, vegetable oils are commonly used as functional ingredients. Cold pressed containing fatty acids show a variety of chemical properties, which mainly dependent on the saturation acids. this study, we have analyzed meadowfoam seed oil (MSO), obtained from seeds Limnanthes alba, and extra virgin olive (EVO). Firstly, composition, denoted Cox value, was determined for that considered most stable. The value MSO reached 0.032, while EVO 1.780. We also content in both using gas...

10.1155/2020/8870170 article EN cc-by Journal of Spectroscopy 2020-09-29

The objective of the research study was to apply near infrared (NIR) spectroscopy evaluate quality protein supplements available in Polish shops and gyms. evaluation performed on basis determination quantity contained individual samples by a Kjeldahl method then results were correlated with measured NIR spectra using an appropriate chemometric method. material consisted fifteen supplement for athletes, which included following types: WPI (protein isolate), WPC concentrate), WPH hydrolysate),...

10.15193/zntj/2018/115/233 article EN Żywność 2018-01-01

Introduction. Our study aimed to apply medium infrared (MIR/FTIR) spectroscopy evaluate the quality of various sports supplements available in Polish shops and gyms. Study objects methods. The included forty-eight supplements: whey (15 samples), branched-chain amino acids (12 creatine (3 mass gainers (6 pre-workouts samples). First, we determined protein quantity individual by Kjeldahl method then correlated results with measured FTIR spectra chemometric principal component analysis (PCA)...

10.21603/2308-4057-2020-1-177-185 article EN cc-by Foods and raw materials 2020-04-10

10.19202/j.cs.2017.03.03 article EN Towaroznawcze Problemy Jakości 2017-01-01

Vegetable oils obtained from different plants are known for their beneficial effects on prophylaxis and supportive treatment of a great deal inflammatory-mediated conditions. Their wide range saturated unsaturated fatty acids, the presence other ingredients (e.g., tocopherols, chlorophylls), provide them with anti-inflammatory, antioxidant anticancer properties, which worth being exploited. In this study, we have carried out spectrofluorometric analysis selected vegetable oils, namely...

10.3390/molecules25235608 article EN cc-by Molecules 2020-11-28

Wet chemistry methods are traditionally used to evaluate the quality of a coffee beverage and its chemical characteristics. These old need be replaced with more rapid, objective, simple analytical for routine analysis. Near-infrared spectroscopy is an increasingly popular technique nondestructive evaluation called green technology.
 Our study aimed apply near-infrared samples different origin (Brazil, Guatemala, Peru, Kongo). Particularly, we analyzed roasting time effect on coffee. The...

10.21603/2308-4057-2022-2-536 article EN cc-by Foods and raw materials 2022-09-23

Wydawnictwo SIGMA-NOT wydaje czasopisma fachowe informujące swoich czytelników o najnowszych osiągnięciach naukowych i nowoczesnych rozwiązaniach technicznych w Polsce na świecie, popularyzuje problemy techniczne oraz poszerza wiedzę kulturę techniczną.

10.15199/65.2022.6.3 article PL PRZEMYSŁ SPOŻYWCZY 2022-06-30
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