Radoslaw Michal Gruska

• Ph.D.
• Lodz University of Technology

The study investigates the efficacy of an enzymatic preparation primarily with α-galactosidase activity for improving the quality of white sugar from poor-quality sugar beets. Focused on overcoming raffinose accumulation challenges in sugar beets, especially those harvested prematurely or stored for extended periods, an innovative exploration of en...

Food safety has received considerable attention in recent years. Methods for rapid identification of a variety contaminants in both the final product and the manufacturing process are constantly developing. This study used Fourier Transform Mid-Infrared Spectroscopy (FT-MIR) spectroscopy to identify various contaminants endangering white sugar prod...

Although sugar beets are primarily treated as a source of sucrose, due to their rich chemical composition, they can also be a source of other carbohydrates, e.g., mono- and oligosaccharides. The study focused on both fresh beet roots and those stored in mounds. Our studies have shown that, in addition to sucrose, sugar beet tissue also comprises ot...

The presence of dextran originating from frost-damaged or degraded beet is highly detrimental during beet sugar manufacture, because they cause difficulties in filtering the carbonatation juice. In this paper the impact of exopolysaccharides on the viscosity of low sucrose content juices including: raw juice, juice after the 1st filtration and thin...

The aim of the research was to increase the efficiency of the hydrodistillation process and determine the volatile composition, biological activity, and aroma profile of essential oil from celery seeds (Apium graveolens L.). The essential oil was extracted from the plant material by ultrasonic hydrodistillation with higher efficiency when compared...

The article presents the mass and energy balances of the sucrose crystallization process in a continuous evaporating crystallizer. The developed algorithm allows to assess the working conditions of the continuous evaporating crystallizers and the technological and energy parameters. The energy balance algorithm takes into account the heat released...

The operating parameters of a vertical evaporating crystallization tower (VKT) of BMA are studied to obtain a predetermined sucrose crystal size distribution. The influence of the amount and properties of the seed massecuite and the feed syrup in relation to the residence time of B massecuite in the individual VKT chambers was analyzed. Using the A...

The antioxidant and antimicrobial activities as well as chemical composition of essential oils from fresh and dried flowers and aerial parts of lavender (Lavandula angustifolia) were compared. Their main volatile components were linalool (26.5-34.7 %), linalyl acetate (19.7-23.4 %), β-ocimene (2.9-10.7 %), and α-terpineol (2.8-5.1 %). The lavender...

The paper presents the application of a rapid and simple Fourier transform near-infrared (FT-NIR) spectrometric method for determining mannitol concentration as an early warning indicator of microbiological contamination during sugar beet processing.

The presence of dextran in the raw juice leads to a disruption of normal processing operations, particularly at the 1st and the 2nd filtration. The blockage of filters is mainly caused by decreasing the average particle size of calcium carbonate precipitated during carbonatation. The effect of dextran on the juice purification process depends not o...

The effect of ultrasound-assisted maceration on the bioactivity, quality and yield of essential oil from waste carrot seeds (Daucus carota) was investigated. The Taguchi method was applied to determine the levels of input factors ensuring the greatest efficiency of hydrodistillation [sonication time 20.0 min; impulse time 50.0 s; pause time 5.0 s;...

Eight enzyme preparations were screened with a view to maximizing the yield of carrot seed essential oil. Three of the eight enzyme preparations investigated, lipase from Mucor circinelloides, XPect (R) pectinase, and Esperase (R) protease, significantly influenced the amount of essential oil obtained, with Esperase (R) being the most effective. Th...

The effect of an enzyme preparation derived from the nonpathogenic filamentous fungus M ucor circinelloides on the bioactivity, quality and yield of essential oil from waste carrot seeds ( D aucus carota ) was investigated. The Taguchi method was applied to determine the levels of input factors ensuring the greatest efficiency of hydrodistillation...

The composition of the essential oil obtained from dried flowers of Lavandula angustifolia, cultivated in Poland was analyzed by GC, GC-MS and NIR. Seventy-eight compounds have been identified in the essential oil. The major constituents of the oil were linalool (30.6 %), linalyl acetate (14.2 %), geraniol (5.3 %), β-caryophyllene (4.7 %), lavandul...

Qualitative and quantitative differences in essential oil hydrodistilled from fresh and dried flowers of lavender (Lavandula angustifolia) harvested in Poland were investigated by gas chromatography-mass spectroscopy (GC-MS) and near infrared spectroscopy (NIRS). Drying prior to hydrodistillation resulted in large losses of essential oil (over 40 %...

The objective of this paper is to determine changes in quality taking place in raw juice as a result of its thickening to a high solids content (ca. 70%), and to test the fermentation properties of this juice. Thickening tests were conducted in the laboratory and on a pilot scale. During raw juice thickening, both in the laboratory and pilot scale...

In article was presented the effect of pulsed electric fields (PEF) on the survival selected microflora that is characteristic of the roots of sugar beet. The survival of microorganism were determined dependig on the value electric field, the number of pulses, volume and type of the medium that was undergone of PEP and the type of mixture used to p...

Activities of Saccharomyces cerevisiae invertase and sugar beet o-diphenol oxidase were relatively resistant to treatment with high electric field pulses (HEFP) irrespective of the conductivity, pH and concentration of their solutions and the number of electric pulses. The electric field strength ranged between 3 and 60kV/cm and the number of pulse...

Mechanical characteristics, comprising Young's modulus of elasticity and resistance to compression and slicing, were determined for sugar beet root tissue denatured with high electric field pulses (HEFP). Young's modulus was decreased from 7 to 0.6 MN.m-2, deformation caused by compression force of 1.4 MN.m-2 varied from 20 to 70 %. and the resista...

This paper gives a short review of approaches enabling to decrease lime consumption in the process of sugar beet juice purification. Special techniques are also described for the purification of sugar beet juice as well as factors positively affecting the purification. Reorganisation of the whole purification process is however necessary (according...

The aim of this study was to investigate the effect of pulsed electric field on selected properties of sugar beet root tissue. Applying the method of pulsed electric field in the processing of beet tissue, results similar to those obtained during thermal processing were achieved. The pulsed electric field changes the mechanical properties of tissue...

Coagulation and adsorption properties of chemical compounds of calcium are commonly used in the sugar industry. The paper presents an analysis of calcium diffusion into live tissue of sugar beetroot and into tissue denatured using the impact of temperature and electric field. A method of atomic absorption spectrometry was used to determine the calc...