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Preface


 In accordance with a long-term publishing strategy approved by the Editorial Board, in the last days of December 2006 we are publishing the ninth issue of the "Polish Journal of Commodity Science" quarterly. This issue's leading theme is innovativeness in commodity science. As usual, each article is accompanied by wide abstracts in Polish and English. Abstracts of all the papers are available at our web page www.tpj.pr.radom.pl.
 The set of ten papers published in this issue of the quarterly is opened by Gajewski's work concerning TRIZ conception in commodity science.
 The TRIZ is an abbreviation used to name the theory of solving of invention problems. As opposed to "tries and errors" method TRIZ avoids wrong conceptions and leads to the optimal solution faster. The essence of the method is overcoming the mental inertia ("inertia vector") caused mainly by habits, education, experience. Although the TRIZ is an engineering method, there are more and more followers in other disciplines, including commodity science.
 The next paper by Skrzypek and Hoffman presents the results concerning management in Polish enterprises. The work consists of three parts. In the first one, theoretical aspects of managing processes, particularly, role and functions of processes maps, subsystem of measuring processes as well as purposes and responsibility of the process owner are discussed. In the second part the methodology of the research is concisely described, while in the third part one can find the results obtained by the Authors followed by the conclusions. The research confirmed that Polish companies have the system of managing processes which can improve outcome and allow to invest more funds to develop quality. The Authors state, however, that existing systems of managing processes in the investigated companies can still be optimized and enhanced.
 Maleszka and Szczepaniak considered quality of services. They present the possibility of application of Servqual and significance-implementation matrix methods in measuring the satisfaction of the public administration client. The Authors discussed problems with measuring satisfaction with quality of service at Wielkopolska Province Offices among exterior clients. The results allowed to sketch the direction of improving the quality of the services offered by the investigated unit. Probably they can also be transferred to other units having similar profile of activity.
 Zalewski investigated the digital camera market and determinants of selection of camera models by various groups of buyers. The research revealed that the development of the product is very quick and crucial in this market. This can be observed by analyzing the life cycle of the product which in this group lasts for one year on average and has downward trend. The Author notices that quick development of the product in the market of digital cameras can be dangerous for producers, because at present this equipment must possess high quality satisfying current consumers' expectations. In Zalewski's opinion one can expect serious difficulties with offering significant technical novelties in this group of products.
 How to differ authentic product from fake? This question arises in front of many consumers and controlling services. The paper by ¦miechowska and Dmowski deals with the problem of authenticity of food products, in particular, vegetal. The problem of falsifying products generally has economical dimension, but in the case of food products - also wholesome. Most often faked food products are: oil, alcohols, honey, fruit and vegetable juices and other products, condiments and spices. Detecting falsifications in this group of products is important not only from economical point of view, but also because of ethics and safety of the consumers. In the work falsifying coffee was investigated. The caffeine content was proposed as practical marker of usefulness of coffee.
 The quality of products means safe and wholesome use. The safety of food products is a subject of the successive paper. Its Authors (Staniek, Krejpcio, Szymusiak and Zieliński) assessed the level of safety of supplementation by complex of chrome (III) with propionic acid. This complex is more and more often used in sliming diets. The results of tests performed by Authors on animal models revealed that addition of 10 mg per kg body mass of the complex had no significant influence on the consumption of the diet, as well as on body mass increase or effectiveness of nutrition of the animals tested. Detailed analysis of the toxicological tests led Authors to the conclusion that this level of the supplementation by chrome (III) complex is safe.
 The quality of cosmetics depends not only on composition and technology of production, but mainly, on the quality of materials used. Sułek, Małysa and Pytlak performed qualitative assessment of creams produced from soy, grape seed and maize oils. Twelve types of creams produced with these oils with addition of paraffin oil were tested. The results revealed that the best properties possess creams produced from soy oil and its mixtures. It was proved that synthetic bases can be successfully replaced by high-quality vegetal oils which can significantly change the usable properties of the creams.
 Increasing interest in influence of technology on the environment makes the technologists search new, ecological solutions. Very often, however, changing the technology imposes changes in quality of the products. In the consecutive article Górska and Mendrycka described technologies of obtaining hop extract with the use of carbon dioxide under supercritical conditions and possibilities of application of the extract in cosmetics. Although the supercritical extraction method is not cheap, very often it is the only method of liberation biological substances that are chemically and microbiologically clean. This enables preparation cosmetic components without preservatives which often can cause allergies.
 In the next paper Buczek and Chwiałkowski presented results of research concerning adsorptive properties of activated carbon obtained via modification by KOH. The Authors applied the carbon modified in this way to purify the rapeseed oil used to fry frozen food. In this work the influence of the sorption cleaning on typical qualitative markers of oils and composition of fatty acids was tested. It is interesting that treatment of post-frying oil with such modified active carbon reduces the content of trans- isomers of higher fatty acids.
 In the Announcements section one can find information by Gagacka "EQUAL - partnership for development". The Author presents the foundations of the project which can be an instrument of supporting innovativeness in small enterprises.
 The ninth issue of our quarterly is closed, as usual, by Information column. This time there is a report from the III International Conference "Innovativeness and quality of products and services" which took place in October 2006, in Radom.
 We wish you a pleasant reading.

 Prof. dr hab. inż. Ryszard Zieliński

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