Wydział Biotechnologii i Nauk o Żywności / Faculty of Biotechnology and Food Sciences / W5
Stały URI zbioruhttp://hdl.handle.net/11652/5
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Pozycja Thermal water – more than water!(Wydawnictwo Politechniki Łódzkiej, 2022) Witkowska, Monika; Śmiegielski, KrzysztofThe use of thermal waters both for external use and for consumption is presented. Nowadays, the use of ecological products of natural origin is promoted, allowing for a significant improvement in the psycho-physical condition of users. Research is carried out to create natural products that comprehensively improve not only the condition of the skin, but the entire body of the user. Thanks to the development of modern technologies used both in cosmetics and other industries, it is possible to effectively use the composition and properties of thermal waters.Pozycja Stability of vitamin c and beta – carotene during the tomato paste lyophilization process the tomato paste lyophilization process(Wydawnictwo Politechniki Łódzkiej, 2022) Kosmala, Monika; Ulańska, KatarzynaThe aim of the study was to evaluate the stability of vitamin C and beta-carotene in the freeze-drying process compared to other thermal drying methods. Tomato puree was selected as a model product for testing the stability of vitamin C and vitamin A in drying processes, due to its properties, such as: appropriate consistency, which was favorable for the analyzes performed, and the presence of the above-mentioned vitamins. Model studies were performed on the stability of vitamin C and beta-carotene under the conditions of air-drying at 105°C, drying under reduced pressure at 70°C and freeze-drying on a tomato puree matrix. Results proved that freeze-drying is superior to other drying methods with the lowest losses of both vitamin C (losses of 4%) and beta-carotene (losses of 25%) in tomato purée. In the case of drying at 70°C under reduced pressure, the loss of beta-carotene is 55%, and vitamin C – 78%. In the case of air-drying at 105°C, vitamin C is 100% degraded, and the loss of beta-carotene is 91%. Moreover, it can be concluded that vitamin C in a higher dose has a protective effect on carotenoids.Pozycja Mass transport and changes in the saccharide profile during osmotic dehydration of apricot and chokeberry fruits(Wydawnictwo Politechniki Łódzkiej, 2022) Pluta, Małgorzata; Klewicki, RobertThe aim of the study was to determine the effect of osmotic dehydration in sucrose solution on the level and profile of the main saccharides in frozen chokeberry and apricot. A 50°Bx sucrose solution at a temperature of 25, 35, 45 and 55°C was used in the tests. The influence of temperature and dehydration time on the dry matter content in the tested fruits was demonstrated. Both in apricot and chokeberry the highest increase was recorded in the first hour of the process, for apricots to the level of 25.1-32.4%, for chokeberry 30.4-33.4%. The use of the highest temperature (55°C) increased the content of glucose and fructose while reducing the amount of sucrose (hydrolysis); at 25-35°C the opposite effect was obtained. At low temperatures, chokeberry was not very susceptible to migration of sucrose. Also, the transport of water was not intense. There was no correlation between the temperature of the process and the increase in dry matter in the sample. The greatest loss of water, i.e. 1 g H2O/g i.d.m., occurred after five hours at 55°C. Under analogous conditions, apricots showed a higher water loss, at the level of 4.68 g H2O/g i.d.m. At 25°C, after the first hour of dehydration, the energy value of saccharides in apricots was 315 kJ/100 g; at 55°C, after 3÷5 hours it fluctuated around 500 kJ/100g. Dehydrated chokeberry was characterized by approx. 1.5÷2 times lower energy value than apricot.Pozycja Development of a recipe and production method for enzymatic hand peeling(Wydawnictwo Politechniki Łódzkiej, 2023) Smolińska, Beata; Wyżykowska, Monika; Rożniakowski, Kamil KrzysztofThe study focused to develop an enzyme hand peeling. The first stage of the investigation dependent on selecting the qualities that the cosmetic should have. When creating the product, the assumption was made that it would have an exfoliating, moisturizing, firming and even-toning effect. The peeling was developed in several stages starting with the consideration of the cosmetic formulation, the selection of suitable raw materials and the execution of the formulation according to the adopted method. For the preparation of the peeling, the emollients used were so-called oily emollients, including sweet almond oil, Shea butter, coconut oil, oil/water (O/W) emulsifier, stabilizers, moisturisers, rheology modifier, filler, active substances, preservative and solvent. The peeling was prepared on the principle of O/W emulsion. The formulation was made using the classic "hot" method. More than a dozen trials were performed to obtain a product with the desired properties. Subsequently, the peeling was subjected to sensory and hedonistic analysis. Its density, viscosity and stability were evaluated. The formulation was also tested for pH. The final scrub was characterized by an intense but pleasant fragrance, very easy spreading on the skin, light texture, pleasant sensation after use. Hedonistic research has shown that obtained enzyme peeling was fully acceptable in terms of application, color, consistency and feelings after use. The final cosmetic product was also characterised by poor moisturisation and too strong abrasiveness.Pozycja Application trial of a simple spectrophotometric method in determination of sun protection parameters of selected sunscreen cosmetics(Wydawnictwo Politechniki Łódzkiej, 2023) Madanowska, Anna; Kowalska-Baron, AgnieszkaKnowledge of the sun protection factor SPF of a sunscreen product is essential for the safe use of solar radiation. In Poland and in the European Union, in vivo method is used to determine the SPF. This method is time-consuming, expensive, does not ensure repeatability, and raises ethical doubts. Therefore, instrumental methods that can replace the traditional in vivo method are sought. In this study an attempt to determine sun protection parameters, such as SPF, degree of protection against UVA and critical wavelength of selected sun protection cosmetics was made with the use of a simple spectrophotometric method based on measuring the absorbance of ethanol solutions of selected sunscreen cosmetics. The obtained results may be useful for future development of a new in vitro method for determination of sun protection parameters of sunscreen cosmetics.Pozycja A comparative analysis of European and British cosmetic products legislation(Wydawnictwo Politechniki Łódzkiej, 2023) Kramarczuk, Patrycja; Gałęcki, KrystianDue to the withdrawal of the United Kingdom of Great Britain and Northern Ireland from the European Union (EU), cosmetic products made available in this country are no longer subject to European legislation, but to British cosmetics law. The exit process (Brexit) was a rather chaotic event with not fully known consequences. The legal changes brought about by Brexit are difficult to understand for many cosmetic companies. Therefore, the aim of this work was to compare and demonstrate the legal differences between European and British cosmetic law, resulting from the withdrawal of the United Kingdom from the EU. The main differences concern the issues related to the responsible person, notification, documentation and labelling of the cosmetic product.Pozycja Antioxidant potential of selected herbal plants from various cultivation systems for cosmetic purposes(Wydawnictwo Politechniki Łódzkiej, 2023) Mańkowska, Dorota; Klepacz, KacperThe aim of this study was to determine the value of the antioxidant potential of several domestic herbal plant species derived from conventional and organic crops, which, due to the content of valuable biologically active compounds with anti-inflammatory properties, can be used in the production of cosmetic preparations. The antioxidant potential of methanol extracts of the tested plants was determined using the FRAP method with ascorbic acid as a standard. The content of antioxidants in the studied plants ranged from 1.121 to 13.228 mg/g for samples from conventional crops and from 1.559 to 19.327 mg/g for samples from organic farming. Greater biological value of extracts obtained from plants grown in an organic system than in a conventional systemhas been indisputably demonstrated. The obtained research results may constitute an incentive for producers of cosmetics to choose native organic plants for the production of their products.Pozycja Antioxidant properties of Moringa oleifera and Withania somnifera extracts and their use in cosmetics for men(Wydawnictwo Politechniki Łódzkiej, 2023) Jezierska, Adrianna; Sykuła, AnnaNowadays, men are paying more and more attention to their appearance, and thus try to provide their skin with proper care so that it looks healthy and without signs of aging. In the present study, ashwagandha (Withania somnifera) and moringa oleifera (Moringa oleifera) were selected from the most popular adaptogens used in cosmetics, which are currently not commonly used in cosmetic preparations for men. The selected adaptogens were compared for their phytochemical and antioxidant properties to determine their skin care effects in cosmetics. The phytochemical content was evaluated through the determination of total phenolic content and in vitro antioxidant capacity was determined by DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS{2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid)} free radical scavenging tests. The total phenolic contents 1.81±0.13 and 0.14±0.02 mg GAE/g extract were found to be present in Moringa oleifera and Withania somnifera glycol-water extracts, respectively. Among the two chosen extracts, Moringa oleifera exhibited significant free radical scavenging activity, ABTS (0.964 ± 0.021 mg TE/g extract) and DPPH (0.822 ± 0.004 mg TE/g extract). It can be concluded that Moringa oleifera extract has strong antioxidant properties than Withania somnifera extract.Pozycja Polyphenols and saponins – properties and application in cosmetics(Wydawnictwo Politechniki Łódzkiej, 2023) Mietlińska, KatarzynaThe cosmetics market is an extremely dynamic, developing branch of the industry. There is a constant need for multifunctional ingredients that will meet the growing expectations of consumers. Active ingredients of natural origin are also appreciated more and more often. One of the most commonly used plant extracts are those rich in polyphenols. These ingredients are known for their antioxidant properties, but they can have many more functions in relation to human skin. They act against wrinkles, brighten skin, support protection against harmful UV rays, etc. Other interesting active plant ingredients are saponins – compounds with an amphiphilic structure – that can be natural alternative to surfactants or emulsifiers. They possess antimicrobial activity and strengthen blood vessels. This article briefly characterizes polyphenols and saponins, taking into account their structure and classification, as well as indicates and describes their properties that can be used in the cosmetics industry.Pozycja Bufadienolides - natural, biologically active compounds for medicines and cosmetics. A review.(Wydawnictwo Politechniki Łódzkiej, 2023) Szymczak, Kamil; Bonikowski, RadosławToad skin secretions are a rich source of various biologically active compounds, such as alkaloids, bufadienolides, biogenic amines, or peptides. Also plants from Hyacinthaceae and Crassulaceae can be a potent source of these groups of molecules. These compounds play a crucial role in amphibians’ and plants’ physiology such as defense against predators or pathogenic microorganisms. Among them, bufadienolides are the focus of many researches in recent years. These molecules have a very interesting, steroidal chemical structure and have potent activity at the cellular level. They possess cardiotonic, antiviral, antibacterial, antitumor, anti-inflammatory, hemostatic, bacteriostatic, wound-healing, and antiparasitic properties. Although the structures of about 500 bufadienolides are known, it is strongly suggested that this group of compounds is still very poorly examined. Moreover, bufadienolides may be an excellent basis for the chemical synthesis of new drugs with selective bioactivity. The aim of this paper is to briefly overview bufadienolides as potent compounds for medicines and cosmetics.
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