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Preface

According to the long-term plan accepted by the Editorial Board, in the end of September 2010, we present to our readers the 24th issue of Polish Journal of Commodity Science. As before, each article contains extensive summaries both in Polish and English. The summaries ofall the papers are available at our webpage http://www.tpj.pr.radom.pl. During last summer Polish commodity science suffered a bad loss. Professor Jadwiga Szymczak died in the middle of July. The memorial was prepared by her former students: dr Magdalena Ankiel Homa and professor Maciej Urbaniak. The set of10 articles In the current issue ofthe quarterly is opened by the Bramorski work on quality models in commodity science, mostly in Internet education. Author compares traditional and Internet educational programs in the area of management using a few criterions. Author presents a five-steps model of educational Internet programs assessment using the following three factors: technical knowledge, the ability to moderate Internet interactions and the quality of Internet interaction itself. On the basis of the personal experience Author con¬cludes that each participant of Internet program requires individually adjusted elasticity to complete each stage of education. In the consecutive paper Ząbek discusses the problem of pro-quality behavior controlling in authorized car dealers. During the analysis of actions, subprocesses and processes Author pays attention to elements of pro-quality strategy that enables good quality results in organiza¬tions of this type. It was concluded that the ISO 9001:2008 performance can be the first stage of TQM philosophy implementation. Quality of raw materials is an important factor determining the quality of cosmetics. A possibility ofapplication ofpro-ecological surfactants in production ofbody-cleaning foams is the subject of the paper by Krawczyk, Olszańska and Ogonowski. Authors describe the usable properties of many compositions containing alkylpolyglucosides. It was concluded that the alkylpolyglucosides applied revealed good foaming properties. It was proved that the most abundant and stable foam was obtained in the case ofthe products containing decylglucoside. Shower gels are the most popular group of bath cosmetics in production, distribution and in individual consumers' preferences. Usable properties of these products can often be im¬proved by addition of vegetable components. In the next article Sułek and Pytlas made an attempt to describe the factors determining the quality of shower gels. Authors analyzed the usable properties ofnew shower gels containing ethoxylated derivatives ofcastor oil as nurtur¬ing, conditioning and moisturizing agents. It was concluded that the gels revealed comparable, or sometimes even better properties, as compared to market products. Sunscreens available at Polish cosmetic market are the subject of the paper by Malinowska and Zieliński. In the work kinds of sunscreening compounds used in these products, SPF (Sun Protection Factor) level, physicochemical forms of sunscreens and presence of active ingredients were analyzed. It was observed that cosmetic sunscreens are available in the form of milks, balms and emulsions. All of the contain active agents such as vitamin E, glycerin and panthenol. These substances care about appropriate moisturizing, nourishing and smoothing the skin during sunbathing. Investigation of factors affecting the safety of products is one ofthe most important tasks facing commodity scientists. The consecutive paper, by Salerno-Kochan concerns the problem of quantitative description of textiles safety. An application of toxicological methods and spectrophotometry measurements as quick methods of textile toxicity assessment was described. As a test substance formaldehyde was used. In this environment Tetrahymena pyriformis was incubated. The possibility of detection even small quantity of formaldehyde was show. It was concluded that the method allows to quickly assess the textile toxicity. In the next paper Melski and Lewandowska present the results concerning the quality of acryl paint surface. The influence of microwave drying process on parameters of colour of wall paint surface was determined. The influence of duration of microwave drying and the pigment concentration on the color parameters was determined. A slight influence of microwave drying on the quality of surfaces was observed, as compared to the surfaces obtained in the traditional way. The quality of many products is often determined by disinfection processes. Even the highest quality of raw materials and technological processes cannot guarantee the high quality of food, unless proper microbiological pureness and efficient disinfection of the production line is provided. In the paper by Mendrycka and Stawarz the effectiveness of various methods ofchemical disinfection is analyzed on the basis ofsurvivability ofBacillus cereus spores. In the consecutive paper Jakubowska et al. discussed the health safety of meat. Authors presented the perception of health hazard by young consumers from Poland, Great Britain and Belgium. It was proved that young consumers are uneasy by the influence of harmful sub-stances present in meat on their health and health of future generations. It was observed that young respondents from Poland have significantly lower knowledge on health safety of meat than the respondents from the Great Britain and Belgium. The last paper in the current issue of the quarterly by Kikut-Ligaj et al. concerns the pos-sibility of forecasting the bitter taste. The results of numerical computations of selected bitter taste substances belonging to the group bis-quinolizidine alkaloids are presented. Authors claim that research of this kind contributes in computer forecasting not only bitter, but also other tastes. The research will enable controlling of the taste composition of food on the mo¬lecular level. It is assumed this kind of controlling can result in limiting of the unfavorable tastes offood with simultaneous exposition ofthe good ones. The 24th issue ofthe quarterly is closed with the column "TPJ Announcements". On can find there information on two international conferences: „Consumer 2011 - Consumer behav¬ior for a sustainable future", which will take place in Bonn, 18-20th of July 2011, while the other one „Current Trends in Commodity Science" will take place in Poznań, 14-16th of September 2011.

 I wish you a nice reading

 prof, dr hab. inż. Ryszard Zieliński
 Editor of TPJ

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