Maciej Jarzebski

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Verified

Maciej verified their affiliation via an institutional email.

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• PhD in materials science Eng, PhD in biophysics habil. in agriculture sciences
• Professor (Assistant) at University of Life Sciences in Poznań

Apatites are very important compounds of mineralogical and biological meaning. Apatites originated from the calcium hydroxy compound 3Ca 3 (PO 4) 2 ·Ca(OH) 2 and potentially might form three series of isomorphic salts, derived from cationic substitutions in the positions of Ca(I) and Ca(II) ions in the core compound; anionic substitutions of phosph...

Fermented vegetable spreads could offer an opportunity to diversify the range of plant-based foods. The challenge in developing the spreads is to achieve high quality, including stable consistency, consumer desirability and high nutritional value. The aim was to evaluate the application of chia and flaxseed meal for fermented zucchini-cucumber spre...

This study investigates the impact of incorporating carboxymethyl tamarind gum (CMT) at varying concentrations (0 %–3 % w/w) into whole wheat bread (WWB) by analyzing several physicochemical properties. The results indicate that the loaf height of CMT2 (1 % CMT) increased by 8 % compared to the control (CMT0, without CMT) ( p < 0.05), with more eve...

This study primarily focused on the acid erosion of enamel and dentin. A detailed examination of the X-ray diffraction data proves that the products of the acid-caused decay of enamel belong to the family of isomorphic bioapatites, especially calcium-deficient hydroxyapatites. They are on a trajectory towards less and less crystallized substances....

The current study investigates replacing water (2.5–15%) in whole wheat pasta with groundnut oil/candelilla wax (GNO/CW) oleogel. To assess the impact of incorporating GNO/CW oleogel at varied concentrations, both uncooked and cooked pasta samples are physicochemically characterized. The water absorption capacity of oleogel‐containing cooked pasta...

The current investigation focuses on the effect of different concentrations of green coffee bean powder (GCBp) on the physicochemical, microbiological, and sensory characteristics of whole wheat bread (WWB). C1 bread formulation (containing 1% GCBp) exhibited the highest loaf volume, suggesting optimal fermentation. Moisture analysis revealed minor...

In the past years, plant-based surfactants such as plant proteins, hydrocolloids, and extracts have intrigued scientific studies of food formulations for usage in emulsion, nanoemulsion as well as microemulsion systems, mainly due to their functional benefits and low toxicity levels. In this work, a hemp seed oil-containing (HSO) emulsion system wa...

The shelf life of whole wheat bread (WWB) significantly impacts its freshness and overall quality. This research investigated the impact of chitosan lactate (CL) on various characteristics influencing the shelf life of WWB, including its physical, chemical, textural, antimicrobial, and sensory attributes. These characteristics were evaluated by con...

Oleogels, which are traditionally utilized to reduce saturated and trans fats in bakery foods, have recently shown promising applications in non-bakery foods, particularly in the enhancement of their food texture and cooking qualities. This study investigates the impact of incorporating stearic acid-containing candelilla wax–groundnut oil oleogel i...

The possibility of using pulsed light (PL) pre-harvest during the cultivation of alfalfa sprouts to reduce microflora and simultaneously enhance the bioactive concentration was presented. Different fluences were compared, and the effect of PL direction on sprout quality was determined. PL application up to 12 J/cm2 per day resulted in an increased...

Wprowadzenie. Oleje roślinne są znanym źródłem jedno- i wielonienasyconych kwasów tłuszczowych (MUFA i PUFA). Rosnący popyt na oleje roślinne, bogate w nienasycone kwasy tłuszczowe, zwiększa wykorzystanie do ich pozyskiwania coraz to nowych roślin oleistych. W niniejszej pracy zbadano właściwości fizykochemiczne (gęstość, pH, współczynnik załamania...

Nowadays, the search for unconventional antibacterial agents is very common. One of them may be eugenol (EU) (4-allyl-2-methoxyphenol), which exhibits antimicrobial properties against pathogenic bacteria and is used in the pharmaceutical industry. Owing to its structure, EU decreases the exotherm of polymerization without a negative impact on the d...

A significant amount of logging residue is produced during roundwood harvesting. Logs are often left in forest sites due to, for example, ecological or logistical aspects. Taking into account the fact that the number of studies focused on changes in the properties of the residue is very low, it was decided to conduct research on the effect of a thr...

Despite strontium ranelate use in osteoporosis management being one of the promising concepts in disease treatment, there is no clear evidence that strontium organic compounds are more effective than inorganic ones. The aim of this study was to compare strontium chlorate and strontium ranelate influence on the mice bone microarchitecture. We invest...

The modern food industry requires new analytical methods for high-demand food supplements, personalized diets, or bioactive foods development. One of the main goals of the food industry is to discover new ways of food fortification. This applies to food products or supplements for human and animal diets. In our research, we focused on the solid par...

ANALIZA UKŁADÓW EMULSYJNYCH Z OLEJEM Z KONOPI JAKO SUPLEMENTÓW WITAMINY K S t r e s z c z e n i e Wprowadzenie. Witamina K odgrywa ważną rolę w procesie krzepnięcia krwi, poprawy stanu kości, zmniejszaniu zwapnień naczyń i ryzyka sercowo-naczyniowego oraz wykazuje właściwości przeciwzapalne. Słaba rozpuszczalność witaminy K w wodzie stanowić może o...

The matter constituting the enamels of four types of organisms was studied. The variability of the ions was presented in molar units. It was proven that the changes in water contents of the enamel are significantly positively related to changes in Mg; inversely, there is also a strong connection with changes in Ca and P, the main components of bioa...

This study investigated the effects of incorporating stearic acid (SAC) in candelilla wax (CW) and groundnut oil (GO) oleogel with potential health benefits as an alternative to saturated fats in processed foods. Results showed that SAC possesses crystal habit-modifying properties on the oleogels, causing its average crystallite size to increase, a...

This study investigated the replacement of butter with soy wax (SW)/rice bran oil (RBO) oleogel in varied proportions in cookie dough and the resulting cookies. The study mainly evaluates the physical, textural, and chemical properties of the butter cookie dough and cookies by replacing butter with SW/RBO oleogel. The dough was assessed using moist...

Heart rate variability (HRV) has emerged as an essential non-invasive tool for understanding cardiac autonomic function over the last few decades. This can be attributed to the direct connection between the heart’s rhythm and the activity of the sympathetic and parasympathetic nervous systems. The cost-effectiveness and ease with which one may obta...

Functional foods, drug delivery systems, and cosmetics are the main areas of application for multiphase systems, where the use of naturally derived compounds is preferred. Hence, this study aimed to assess the possibility of using natural surfactants and saponin-rich extracts to produce emulsions containing antibacterial and antioxidant cinnamon an...

The introduction of the notion of energy change resulting from the ion exchange in apatites leads to the question: how can some simple isomorphic series be described using the mentioned idea? We concentrated on the simple isomorphic series of compounds: apatite, bioapatite, calcite, aragonite, celestine, K-, Zn- and Cu-Tutton’s salts. It was demons...

The objective of this study was to extract the rapeseed protein from by-products and further examine the effect of lab-made rapeseed protein on the droplet size, microstructure, colour, encapsulation and apparent viscosity of emulsions. Rapeseed protein-stabilised emulsions with an increasing gradient of milk fat or rapeseed oil (10, 20, 30, 40 and...

Vitamin D3 and iron are important components of a balanced diet. Supplementing meals with these is essential to support the recovery of humankind’s malnutrition. It is necessary to develop effective delivery systems to ensure the high bioavailability of these hydrophobic components. For this purpose, emulsions were prepared based on hemp seed oil a...

Nowadays, due to a higher resistance to drugs, antibiotics, and antiviral medicaments, new ways of fighting pathogens are intensively studied. The alternatives for synthesized compositions are natural products, most of which have been known in natural medicine for a long time. One of the best-known and intensively investigated groups are essential...

The chemical composition and structure of bamboo octocoral Keratoisis spp. skeletons were investigated by using: Scanning Electron Microscopy SEM, Raman Microscopy, X-ray Diffraction XRD, Laser Ablation–Inductively Coupled Plasma LA-ICP, and amino acid analyzers. Elements discovered in the nodes (mainly organic parts of the skeleton) of bamboo cora...

Despite the widely described high nutritional value of insects, many authors suggest significant differences in the nutrient content depending on the breeding conditions, preparation methods, or even geographical origin. To date, there is no reports on the technological and physical properties of cricket powder (CP). This article describes the prop...

Flaxseed proteins exhibit functionalities interesting for the food industry, including antioxidant capacity. Antioxidant activity depends on the protein composition and the presence of phenolic compounds extracted with them from the matrix. The research focused on the effect of subsequent protein extractions (water, salt and alkaline) of flaxseed m...

Radiation is an example of one of the techniques used for pasteurization and sterilization in various packaging systems. There is a high demand for the evaluation of the possible degradation of new composites, especially based on natural raw materials. The results of experimental research that evaluated the impact of radiation technology on biodegr...

Scientists are concerned about the health risks associated with consuming a diet high in saturated fats. In this regard, oleogels have been used as a shortening substitute by researchers. This present study evaluated the role of stearyl alcohol (SA)-, and Span-60 (SP)-tailored sunflower wax/sunflower oil oleogels upon butter replacement in whole wh...

Developments in the field of nanostructures open new ways for designing and manufacturing innovative materials. Here, we focused on new original ways of calculating energy changes during the substitution of foreign ions into the structure of apatites and bioapatites. Using these tools, the energetic costs of ion exchanges were calculated for the ex...

The bark of Frangula alnus Mill (FAM), the so-called alder buckthorn, has been widely investigated for its medicinal properties, especially its laxative effects and the bioactive properties of the plant material extract. Still, there is no wider study devoted to its antibacterial properties. This is important in the context of its impact on probiot...

Early detection of the dysfunction of the cardiac autonomic regulation (CAR) may help in reducing cannabis-related cardiovascular morbidities. The current study examined the occurrence of changes in the CAR activity that is associated with the consumption of bhang, a cannabis-based product. For this purpose, the heart rate variability (HRV) signals...

Emerging natural-based polymers and materials progress and new technology innovations open the way for unique food products with high nutritional value development. In this regard, oleogel may be essential in replacing fatty acids from food products. In this study, we researched the effects of varied soy lecithin (SYL) concentrations on the various...

Apatites are one of the most intensively studied materials for possible biomedical applications. New perspectives of possible application of apatites correspond with the development of nanomaterials and nanocompounds. Here, an effort to systematize different kinds of human bioapatites forming bones, dentin, and enamel was undertaken. The precursors...

The current study aims to evaluate the effect of tamarind gum (TG) on the optical, mechanical, and drug release potential of poly(vinyl alcohol) (PVA)-based films. This involves preparing PVA-TG composite films with different concentrations of TG through a simple solvent casting method. The addition of TG has enhanced the phase separation and aggre...

Fluorescent particles are of particular interest as probes and active agents for biomedical, pharmaceutical, and food applications. Here, we present two strategies for incorporation of core-shell acrylic fluorescent nanoparticles (NPs) with Rhodamine B (RhB) as a dye into a chitosan (CS) matrix. We selected two variants of NPsRhB immobilisation in...

The current study deciphers the processing of different proportions of white flour and whole wheat flour (100:0, 75:25, 50:50: 25:75, and 0:100) into a pizza base using yeast-based fermentation. The bread making using the yeast system resulted in significant changes in the characteristics of bread, ranging from the porous structure development to t...

This study aimed to determine the use of selected vegetables (pumpkin, cauliflower, broccoli, carrot) as carriers of potassium iodide (KI) and potassium iodate (KIO3) by determining changes in iodine content under various conditions of impregnation as the degree of hydration, impregnated sample temperature, and impregnation time. The influence of t...

The effect of horror sound on electro-cardiac activity is not yet sufficiently explored despite recommendable research on different genres of music and sound. Detecting the impact of these stimuli is a complex task. The current study intends to automatically detect the horror-sound induced cardiac changes using wavelet coefficient-based features ex...

The effect of coffee (caffeinated) on electro-cardiac activity is not yet sufficiently researched. In the current study, the occurrence of coffee-induced short-term changes in electrocardi-ogram (ECG) signals was examined. Further, a machine learning model that can efficiently detect coffee-induced alterations in cardiac activity is proposed. The E...

β-Carotene (vitamin A precursor) and α-tocopherol, the utmost energetic form of vitamin E (VE), are known to be fat-soluble vitamins (FSVs) and essential nutrients needed to enhance the growth and metabolic functions of the human body. Their deficiencies are linked to numerous chronic disorders. Loading of FSVs within nanoemulsions could increase t...

Hemp (Cannabis sativa L.) is a herbaceous anemophilous plant that belongs to the Cannabinaceae family. The cannabis seed (hemp) has long been utilized as a food source and is commercially important as an edible oil source. In this review, the positive and negative health effects of cannabis, the relationship between cannabis and various diseases, a...

The measurement of polydisperse protein aggregates and particles in biotherapeutics remains a challenge, especially for particles with diameters of ≈ 1 µm and below (sub-micrometer). This paper describes an interlaboratory comparison with the goal of assessing the measurement variability for the characterization of a sub-micrometer polydisperse par...

Chitosan is one of the emerging materials for various applications. The most intensive studies have focused on its use as a biomaterial and for biomedical, cosmetic, and packaging systems. The research on biodegradable food packaging systems over conventional non-biodegradable packaging systems has gained much importance in the last decade. The dea...

New types of biological apatites have been discovered in molar sheep and horse teeth and are divided in two types. In the first and more general type, the release of Mg ions is parallel to the changes in composition of apatite leading to a final stoichiometric ratio of Ca to P ions, going from dentin depth towards the boundary of enamel with air. I...

The use of natural surfactants including plant extracts, plant hydrocolloids and proteins in nanoemulsion systems has received commercial interest due to demonstrated safety of use and potential health benefits of plant products. In this study, a whey protein isolate (WPI) from a byproduct of cheese production was used to stabilize a nanoemulsion f...

The article presents a review of the literature on the use of polysaccharide bionanocomposites in the context of their potential use as food packaging materials. Composites of this type consist of at least two phases, of which the outer phase is a polysaccharide, and the inner phase (dispersed phase) is an enhancing agent with a particle size of 1–...

Plant-based protein sources have a characteristic aroma that limits their usage in various meat-alternative formulations. Despite being the most popular plant-based protein, the allergenicity of soy protein severely restricts the potential adoption of soy protein as an animal substitute. Thereby, allergen-free plant-protein sources need to be chara...

The dentin-enamel junction (DEJ) is known for its special role in teeth. Several techniques were applied for the investigation of the DEJ in human sound molar teeth. The electron (EPMA) and proton (PIXE) microprobes gave consistent indications about the variability of elemental concentrations on this boundary. The locally increased and oscillating...

To meet the growing interest in natural antibacterial agents, we evaluated the physicochemical and biological properties of the folk medicine known as “five thieves’ oil” (Polish name: olejek pięciu złodziei). Five thieves’ oil consists of a mixture of five oils: rosemary, lemon, clove, eucalyptus, and cinnamon. In this study, we performed gas chro...

Lower levels of calcium in adults increase the risk for osteoporosis, and in children, low calcium levels can impact their potential adult height. The study objective was to analyze the bioavailability and physicochemical properties of a calcium preparation based on chicken eggs. The base calcium preparation was enriched with one of a variety of bi...

Nanoemulsion systems receive a significant amount of interest nowadays due to their promising potential in biomedicine and food technology. Using a two-step process, we produced a series of nanoemulsion systems with different concentrations of hemp seed oil (HSO) stabilized with Aesculus hippocastanum L. extract (AHE). Water and commercially-availa...

A series of linear profiles of the elements of the enamel in human molar teeth were made with the use of an electron microprobe and a Raman microscope. It is postulated that the enamel can be treated as the superposition of variable “overbuilt” enamel on the stable “core” enamel at the macro-, micro- and nanoscale level. The excessive values charac...

Red dragon fruit (Hylocereus polyrhizus L.) is a rich source of betalains compounds, natural pigments with desirable bioactive and antioxidant properties. In this paper, we focused on the use of mathematical models for prediction the properties of alginate microspheres loaded with betacyanins from the peel of red dragon fruit. Besides to assess the...

A new way of electrochemical DNA sensor using as a screening tool for the determination of phytochemicals with high genoprotective functionality is proposed. The biosensor's detection layer was prepared with double stranded deoxyribonucleic acid (ds DNA) that were subjected to oxidative stress induced by •OH radicals generated by Fenton reaction. T...

Food can be a source of valuable peptides with high bioactivity, which regulate the functioning of cardiovascular and nervous systems. The aim of the study was to evaluate the possibility of usage ricotta after hydrolysis to obtain innovative chocolate desserts. It was shown that the hydrolysis of whey proteins in ricotta had insignificant effect o...

Dear Colleague, The issue is dedicated to nanoparticles, nanosized and submicron-sized structures that can be applied in a wide range of biomedical and food technologies. We focus on the multidisciplinary investigations of nanosized and submicron-sized structures with wide experimental design and property characterization. The authors can present n...

In this study, two saponins-rich plant extracts, viz. Saponaria officinalis and Quillaja saponaria, were used as surfactants in an oil-in-water (O/W) emulsion based on hempseed oil (HSO). This study focused on a low oil phase content of 2% v/v HSO to investigate stable emulsion systems under minimum oil phase conditions. Emulsion stability was char...

Hen eggshells are a rich and natural source of calcium and can serve as a biofunctional food ingredient. Enriching the traditional Polish bread spread (ser smażony) with micronized eggshell is an attractive proposition for consumers who require easily available calcium. The present study aimed to evaluate the use of micronized eggshells as a source...

Dynamic light scattering (DLS) is one of the most commonly used for rapid particle size determination. The advantages of DLS for fast and simple colloid systems (i.e. food, emulsions) and nanoparticles dispersion characterization is limited due to particle shape and possible interactions between the sample and the measuring solution. In this paper,...

Brewers' spent grains (BSGs) are the most important by-product of the brewing industry and are rich in protein and fiber. However, abundant amounts of BSGs are discarded annually worldwide. This project aimed to employ and compare innovative drying techniques to introduce snacks with protein sources derived from leftover BSGs. This study explored t...

Brewers’ spent grains (BSGs) are the most important by-product of the brewing industry and are rich in protein and fiber. However, abundant amounts of BSGs are discarded annually worldwide. This project aimed to employ and compare innovative drying techniques to introduce snacks with protein sources derived from leftover BSGs. This study explored t...

Fluorescent submicron particles of fluorinated methacrylate (HFMBA) with long-term stability have been synthesized and characterized with regard to their potential applications. Rhodamine B (RBITC) isothiocyanate was used as the fluorescent component. The core–shell structure of the particles effectively protected the dye against bleaching. HFBMA n...

Hypericum perforatum L. (HPL) is also called as St. John's wort and is traditionally used as a herbal tea and food supplement because of its excellent bioactive properties. One of the main objective of the present study was to investigate the effect of an additional filtration process on the properties of final HPL extract. Physicochemical studies...

Ekstrakty roślinne są jednym z podstawowych substancji bioaktywnych, wykorzystywanych w medycynie, farmacji oraz przemyśle spożywczym. Pomimo stosowania wyciągów z roślin od tysięcy lat, nadal odkrywane są ich nowe unikalne właściwości. Rośliny, w których składzie znajdują się saponiny (znane z właściwości powierzchniowoczynnych), wykorzystuje się...

In this paper, we present the possibility of using pea protein isolates as a stabilizer for hempseed oil (HSO)-based water/oil emulsions in conjunction with lecithin as a co-surfactant. A Box-Behnken design was employed to build polynomial models for optimization of the ultrasonication process to prepare the emulsions. The stability of the system w...

The white mulberry leaves are typically available on the market in dried or encapsulated form. It was assumed in the study that appropriate drying of leaves of the white mulberry is significant for obtaining intermediate products with high content of compounds having anti-oxidative activity. The purpose of the study was to determine the influence o...

Rozmiar cząstek w nanotechnologii i układach koloidowych, odgrywa jedną z kluczowych ról, determinując właściwości fizykochemiczne układu. Technika dynamicznego rozpraszania światła umożliwia wyznaczanie średnic hydrodynamicznych cząstek w zakresie od 1 nanometra do kilku mikrometrów. Analiza polega na pomiarze fluktuacji światła rozproszonego od p...

Recently much attention is payed to the influence of natural compounds present in every-day diet on human health. Much emphasis is put on non-medical or semimedical cosmetics, food and drink products, like herbs (fresh and dried), teas and infusions, as well as juices and extracts and that their antioxidant performance is one of crucial factors. On...

Fluorescent core-shell particles are used as versatile fluorophores in confocal microscopy based image analysis and as a colloidal model system to study short and long-range interactions. Bright and stable microspherical probes are proposed as promising materials, especially in bioimaging applications. The release of dyes from fluorescent polymer m...

Aesculus hippocastanum L. extract is gaining interest because of the presence of saponins content as a potential emulsion stabilizer. Saponin-containing plant extracts are receiving much interest because of their surface-active properties. This study presents the investigations on Aesculus hippocastanum L. (AHL) bark extract as a potential antibact...