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Preface

According to the long-term plan accepted by the Editorial Board, at the end of March 2014 we present to our readers the 38th issue of the Polish Journal 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 on our webpage http://www.tpj.uniwersytetradom.pl. A series of 14 articles in the current issue of our journal begins with the work by Malinowska on the claims concerning the properties of cosmetics according to new European Commission regulation. The study indicated that the claim is an integral part of the marketing of cosmetic products. They should be clear, precise, useful and understandable to the consumer. They should include information that will enable the consumer to make an informed choice. The author concludes that, by analogy to the rules governing dietary supplements, it is likely to increase oversight of the cosmetics declarations. In the consecutive paper Kiełtyka-Dadasiewicz et al. present the properties and possible applications of inulin. Inulin is a natural fructan. It can naturally by found in plants as a reserve material. The percentage of inulin in various plants is very large, up to several dozen percent in tubers or roots of certain plants. The authors suggest that inulin can be successfully used as a food, feed, pharmaceutical, cosmetic and energy product. The issue of food safety is the subject of Dzwolak’s interest. In his paper author discusses the risks to consumers posed by parasitic protozoa. The parasitic protozoa that can enter the human body through the oral route were described. The impact of parasitic protozoa on public health was discussed to conclude the necessity to account for their presence in food safety programs and to identify control measures to master this group of biological threats. The next paper is also related to the issue of food safety. Wisniewska and Czernyszewicz describe the issue agroterrorism which is one of the new varieties of terrorist activities. The authors present examples of agroterroristic actions in the past 60 years and discuss their possible consequences. In the next article Ząbek discusses the practical issues of implementing the requirements of GHP, GMP and HACCP in domestic food production. A significant share of domestic pork products in total production was observed. The study revealed that the legal requirements of production were largely met. The author emphasizes that the strong foundations for regulations in this area were imposed by a multigenerational experience of food producers. The market for innovative products and place of consumers in this market is the subject of the paper by Zabrocki. Based on the survey, the author states that the by majority of respondents only entirely new, or those that were not previously known to the market, products were innovative. The studies revealed positive consumer attitudes towards product innovation, mainly due to technological innovation and increase of product functionality. The study also showed that the respondents most often purchased their product innovations in the group of food products, clothing and footwear, as well as cosmetics. Knowledge workers are the persons specialized in their profession, having unique expertise, well-informed, active and responsible, aware of the role of self-esteem, being independent organization participants, use knowledge as a production factor. Occupational threats in this group of workers involved in the technical organization of the workplace with respect to organization department are the subject of the paper by Lotko. The author presents the results of research on self-esteem of workers occupational threats resulting from improper equipment or the technical organization of the workstation. One of the most important analytical issues in the evaluation of quality of fatty products is fast and efficient detection of foreign fats. The paper by Banach et al. discusses a new approach to this issue through measuring the electrical characteristics such as impedance, admittance and conductance. The paper presents the results of experimental on applicability of measuring the electrical properties for detection of the sunflower oil addition in butter. The subject of the article by Stój and Kucharczyk is the quality of dry red wines from France, Italy and Spain, which have a similar price at the Polish market. As expected, it was observed that the chemical composition of red wines depended on the country of their origin. It was found that among the wines tested, Italian ones had the lowest content of ethyl alcohol and sugars. On the basis of the study authors conclude that equal prices of wines does not necessarily correspond to an equal quality. The subject of the paper by Krasowski et al. is the assessment of vulnerability to environmental degradation of poly (e-caprolactone) (PCL). In the research unmodified commercial poly(e-caprolactone) and the one modified with chalk were tested. After determining the amount of weight loss of the samples tested and morphological changes on the surface, susceptibility of PLC to biodegradation in the natural environment of the Baltic Sea was confirmed. It was proved that the rate of PCL biodegradability process depended on the location of incubation and environmental conditions. Samotyja et al. present the results of studies designed to assess the rate of hydrolytic processes occurring in the lipid fraction of different flours produced from oilseeds. Coconut, sesame, sunflower, walnut, peanut, flax seed and pumpkin seed flours were investigated. It was suggested that the acidity of the fat could be used as a useful differentiator of products durability. According to the authors, the numerical value of the discriminant can be treated as quantitative information on early changes that directly contribute to the reduction of the durability and quality of the products investigated. Determination of content of folic acid and natural forms of folate such as 5-metylotetrahydrofolian and tetrahydrofolate in fortified fruit nectars, fruit and vegetable juices is the subject of Gujski, Czarnowska and Michalak research. Using the HPLC method, it was found that the natural forms of folate were present in the tested juices in very small amounts, and in some cases, the amount of folic acid added to the juice was significantly higher than the amount declared. The authors conclude that the actual content of folate in commercial juices is determined entirely by accidental or uncontrolled addition of folic acid in the production of these juices. In another work Hawrylianka et al. present the results of research concerning the evaluation of antiradical activity of several sedative herbal mixtures available on the Polish market. It was observed that infusions prepared from herbal mixtures such as Nervosan, Nervi-nex-mix and Relakson revealed a relatively high antioxidant activity. It was found that in most cases a higher antiradical activity corresponded to higher content of phenolic compounds in commercial sedative herbal mixtures. The last article is devoted to the problem of security in maritime transport associated with the occurrence of the phenomenon of liquefaction of bulk cargoes, particularly metal ores occurring in the form of sulphides. In this work Popek evaluates the applicability of methods of determining the ratio of TML for selected bulk commodities transported by sea. The suitability of the following methods of experimental determination of TML rate: Proctor / Fagerberg Method, Japanese Penetration Test Methods and Flow Table was determined. The thirty-eighth issue of our quarterly is closed by the regular column “TPJ Announcements”. It contains the invitation to the National Conference “Quality of goods and services in innovative economy”, that will take place on 11-13th May 2014 in Gdynia.

 I wish you a pleasant reading.

 Prof. dr hab. inż. Ryszard Zieliński TPJ
Editor

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