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Preface

Pursuant to the long-term publishing plan of the Editing Board made at the end of May 2006 we are presenting the seventh issue of Polish Journal of Commodity Science to our readers. We have assumed that the leading contents of this issue will concern the problems of quality management and commodity science. As before, each article comprises a lengthy abstract both in Polish and English. Abstracts of all papers published in our quarterly journal are available in two language versions on-line at our website at http://tpj.pr.radom.pl

A series of 11 articles in the current issue of the journal begins with Jaworska’s paper concerning the issues of safety and hygiene in some EU countries. Its author points out that due to the lack of agreement as to the creation and publication of international standards many countries produced documents dealing with the issue of industrial safety, which allow integrating the industrial law regulations with the EU standards.

In the following paper its author, Łuczak, discusses the significance of particular elements of suppliers’ quality management system on so called primary equipment (OE/OES) in the motorization branch (OEM). The author presents a set of demands affecting the system of suppliers’ quality management and its bearing on primary equipment in the motorization branch. The research conducted by him verified the commonly accepted view that the essential condition for obtaining the status of a customer supplier in the motorization branch is obtaining the branch certificate of quality management (SZJ). The results of the conducted research allow determining the trends in creating the said certificate (SZJ) and its wider application with the view to prepare the motorization firms as best as possible to the requirements of the quality management.

Quality assessment of fuels to Diesel motors is the subject of the Sułek and collaborators’ paper. Authors made the quality assessment of biofuels on the basis if fatty acid methyl esters and diesel. There were made studies of chemical, tribological and surface properties. The investigations proved that the addition of fatty acid methyl esters influenced considerably  on useful properties of this fuel.

The paper by Olejniczak and collaborators deals with quality assessment of shoe-wear. The text presented in the journal is the first one of the series of articles on this topic. The authors draw on the concept of microclimate of shoe-wear in the light of existing standards and literature data.

The following paper by Izdebska and Podsiadło presents the results of their own research into the factors determining the quality of print. They made research into the relations between the kind of paint used for printing and resistance to tearing of three-layer laminate on which the paint is spread. In their article the authors attempt to establish what kinds of paints are the best for such laminates.

Esters of sucrose and fatty acids have been known for over half a century as non-ion surfactants that can be obtained from easily accessible natural raw materials. Esters themselves undergo processes of chemical and biological degradation. Only now the fast recent development of chemical technology has made it possible to create adequate conditions for industrial production of such esters. Ogonowski and his team discuss the surface and use properties of commercial products coming from various producers. The properties mentioned above point to a wide range of possibilities of using these products in food, pharmaceutical and cosmetic industries.

Using cation surfactants in cosmetic and pharmaceutical compositions containing natural antioxidants creates a possible danger of interaction between these elements in a market product. In their paper Wieloch and Zieliński undertake an attempt to answer the question as to what extent the antioxidant activity changes in the model quercitine flavonoid in the presence of some ammonium salts in particular cation surfactants. On the basis of the research into the kinetics of extinguishing a free radical, DPPH, by querticine solutions it was established that the presence of ammonium chloride and the researched cation surfactants influence the speed of sweeping away the DPPH free radical. This observation may be significant in selecting the composition of commercial products containing active substances.

The following paper by Wybieralska concerns the anti-radical activity of querticine in the model water solutions in the presence of cadmium ions (II). The author showed that the established fixed speeds of deactivation process of DPPH radical in arrangement containing these ions influence in a significant way the anti-radical activity of the querticine that is in them. The author points out that even a small amount of ions of cadmium (II) affects the anti-radical activity of flavonoids.

The subject of Borycka’s article contains characteristics of fibre preparations made from tomato pomace from the point of commodity science view and includes the analysis of their sorption abilities. The author presents the results of research concerning the abilities of bonding ions of cadmium and lead through preparations rich in fibre made form tomato pomace. She states that the tomato preparation made from tomato pomace may be treated as a potential additive to food.

In their following article Krejpcio and his collaborators deal withy the issue of quality and safety of food in respect to so called ‘functional food”. Taking into consideration producers’ and consumers’ growing interest in this type of food, it is essential to examine each product before it is launched into the market. It is also necessary to confirm its beneficial health properties in clinic tests. The authors point out that at the present moment there are no European uniform regulations concerning this matter.

In the last paper in this issue Pomianowski and collaborators present the organization and characteristics of a retail trade unit selling food. The article discusses the ways of choosing location of such units, their external and internal appearance and the organization of the surroundings. There is also a description of equipment for storing and displaying products that allows keeping high quality of these products.

The seventh issue of our quarterly journal ends with Information Column on TPJ containing information on an international seminar concerning the quality of open and distance education “Quality in Open and Distance Learning ‘e-Quality Seminar” which will take place in September this year in Szczecin.

 

We wish you a pleasant reading.

 

Deputy editor of Polish Journal of Commodity Science

Professor Ryszard Zieliński, PhD habilitatus, eng.

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