Nav view search

Navigation

Search

Preface

 According to the long-term plan accepted by the Editorial Board, in the middle of October 2014 we present to our readers the 41 st issue of the Polish Journal of Commodity Science. It have been exactly 10 years since the publication of the first issue of our magazine. Over the 10 years the magazine has become an important forum for the exchange of views concerning mainly the quality control and evaluation of products and services. So far we have published about 450 papers from all the areas of commodity science. Continuing efforts to widen the group of our readers we present some papers in English version. As before, regardless the language of the original publication, each paper contains a wide summary in both Polish and English. The summaries of all the works published one can find at our webpage http://www.tpj.uniwersytetradom.pl. A series of 13 articles in the current issue of our journal is  opened by Gruszewski et al. paper on ionizing radiation and its impact on modifying the properties of packaging  materials. The paper presents the unique features of radiation processing of materials and explains the essence of  phenomena occurring in polymers imposed by radiation, such as cross-linking and degradation processes. Also  post-radiation processes and the protective effect of certain additives are discussed. The next work concerns the security issues of packaging used for food production. Lisińska-Kuśnierz presents the results of studies on this topic  conducted among elderly consumers. The study was aimed to determine the consumers-validity of various features  of packages which are related to safety of consumer health. The evaluation of shopping preferences for functional beverages is the content of the paper by Staniewski and Jakubowska. The authors carried out a survey among  people with an active lifestyle. The respondents state that this beverages allows them to supplement the deficit of electrolytes that are lost in sweat during intense exercise, increase the productivity and complement the  carbohydrates. Comparison of popular red and white wines available on the Polish market is the subject of Garbowska et al. research. The paper presents the results of analysis of the total content of phenolic compounds, ethyl alcohol, sugars, sucrose, sulfur dioxide and chloride in wines. It was found that the content of sugars (including sucrose), did not affect the nature of the wine. In some cases the exceed of the sulfur dioxide content in the tested wines was observed. In the sensory tests the evaluated wines received the lowest scores for flavor with good scores of any other sensory determinants. The problem of health safety of pasteurized fruit juices is the subject of Syguła-
-Cholewińska and Kosidłowski work. Alicyclobacillus bacteria grow particularly well in an acidic environment. Due to their thermal resistance they survive the pasteurization process. That is why it is important to develop a fast procedure for the detection of bacteria in fruit juices. The article presents the results of numerous studies aimed to develop a methodology for the detection of these bacteria in the apple and orange juices. In the consecutive paper Dereniak et al. characterize the products enriched with phytosterols and phytostanols. These are substances that are supposed to the reduce the blood cholesterol and the risk of cardiovascular disease. The legal regulations regarding labeling and marketing of products enriched with phytosterols on the European Union market were also discussed. Moreover, the groceries enriched with phytosterols available on the Warsaw market were described. The subject of food safety is continued in the article by Michalak et al. The authors present the results of acrylamide content tests in selected groups of food products. Acrylamide is obtained by thermal processing of food via the Mailard reaction.Its presence in food products should be monitored due to its genotoxicity, carcinogenicity and neurotoxicity. The authors state that among the products tested, the acrylamide content exceeded the levels recommended by the European Comission in crispbread samples and cereal flakes. Kosowska et al. evaluated the high-quality meat products: smoked and steamed loin available on the Krakow market. Chemical analysis, color measurements and sensory tests were conducted. As a result of analysis of experimental data using the method of principal component analysis (PCA) and cluster analysis authors sorted the products to 4 flavor groups. The consecutive two papers concern the possibilities of applying waste as a high-quality raw materials. The subject of the study in the first one is the cenosphere, which is a waste arising in the process of burning coal. The cenosphere has excellent abrasive properties, but has a gray color, which disqualifies its use in cosmetic products. The work by Swat and Zielinski presents the results of measurements of color parameters of this raw material in the process of bleaching. The cenosphere bleached can be a potential raw material for cosmetic preparations capable of wiping keratinized epidermis. In the second one Buczek and Szpara illustrate the applicability of the used edible vegetable oils (fritures) for the production of biodegradable lubricants. A specific practical suitability of greases received in this way was proved, and thus the usefulness of a large amounts of fritures as a substitute for the lubrication industry was confirmed. The next three papers are related to the quality of cosmetic raw materials and products. In the first one Kotlarska et al. present the results of studies on the use of extracts of dried berries in cosmetic formulations. On the basis of application tests, it was found that the presence of these extracts in cosmetic emulsion formulations improved the degree of hydration and lubrication of the skin. In the second paper of this series Małysa and co-authors present the results of research onthe possible use of shea butter in foot care creams. The effect of shea butter concentration o onthe usable and physicochemical properties of the emulsion obtained was analyzed. The experiments proved that the addition of shea butter at concentrations of 1% and 2% improvedthe viscosity, moisturizing and sensory properties, making them comparable to commercial products, and even better as compared to the formulation without the additive. The current issue of our journal ends with Malinowska and Kamczycka work on modern dermo-cosmetics for skin prone to acne rosacea. The authors emphasize that the qualitative content of INCI dermo-cosmetics declared by the manufacturers does not indicate the concentration of the individual ingredients in the product. It only allows to confirm the presence of raw materials having a beneficial effect on the skin. 41 st issue of our quarterly is closed by the regular column “TPJ Announcements”. It contains the memory of Dr. Beata Kubik, discussion on Symposium "Radiation Techniques in plastics processing" which was held at the Institute of Nuclear Chemistry and Technology, Center for Radiation Research and Technology in Warsaw on 16–17 June 2014 and an invitation to the International Commodity Conference “Current Trends in Commodity Science:, which will be held on 22–25 June 2015 in Poznań and Dolsk. The conference is a part of the celebrations of the 65 th anniversary of  commodity studies at the Poznań University of Economics.


I wish you a nice reading


Prof. dr hab. inż. Ryszard Zieliński
TPJ Editor

 

 

 

 

Additional information