Konopie siewne (Cannabis sativa L.) to starożytne rośliny uprawne o wielu zastosowaniach, pochodzące z Azji Środkowej. W pracy przedstawiono przegląd piśmiennictwa dotyczącego konopi, związków czynnych w nich zawartych, aktywności biologicznej, właściwości leczniczych oraz możliwości wykorzystania w medycynie i żywności. Szerokie zastosowanie w przemyśle spożywczym znajdują nasiona konopne, które są dobrym źródłem białka, błonnika, witaminy E, żelaza, wapnia, cynku, fosforu i magnezu. Za smak i zapach konopi odpowiedzialne są węglowodory terpenowe, głównie β-kariofilen i α-humulen (seskwiterpeny) oraz monoterpen, mircen. Obecnie głównym obiektem zainteresowania przemysłu jest tłoczony z nasion olej bogaty w tokoferole, fitosterole, karotenoidy, polifenole i fosfolipidy. Olej konopny zawiera ponad 80 % NNKT, w tym kwasy γ-linolenowy (GLA), linolowy i α-linolenowy, przy optymalnym stosunku wielonienasyconych kwasów tłuszczowych omega-6 do omega-3 w proporcji 3 : 1. Stosowanie oleju w technologii żywności jest ograniczone ze względu na intensywny jego kolor i smak. Inne związki aktywnie czynne identyfikowane w Cannabis sativa L. reprezentowane są przez kannabinoidy, dihydrostilbeny i spiroindany. Kannabinoidy charakteryzują się właściwościami przeciwzapalnymi, przeciwbakteryjnymi, przeciwbólowymi i przeciwdepresyjnymi. Produkty z nasion konopnych stanowią dodatki do herbat, kawy, wyrobów czekoladowych, napojów mlecznych, pieczywa i wyrobów cukierniczych, a także piwa, wina, miodu czy produktów dla sportowców. W artykule omówiono także wymagania prawne związane z możliwością zastosowań kannabinoidów w żywności oraz wprowadzaniem produktów spożywczych z ich udziałem do obrotu towarowego.

The aim of the research was to develop a laboratory test stand for forming vegeburgers and to determine the carbon footprint of vegeburger production technology with the addition of frozen vegetable outgrades. This vegetable material is waste from frozen food production. During the research, unique recipes for vegeburgers fabricated of vegetable outgrades, potatoes, fiber, potato flour, salt and spices were also developed. The physicochemical properties, texture and color of vegeburgers were determined. The CO2 to kWh conversion factor, with a value of 0.765 kg CO2∙kWh−1 was used to calculate the carbon footprint. Vegeburgers obtained during the study were characterized by protein content ranging from 2.05 to 2.29 g 100 g−1, carbohydrate content from 7.27 to 10.36 g 100 g−1, fiber content ranging from 3.97 to 4.92 g 100 g−1 and fat content was at the level of 0.20–0.24 g 100 g−1. The amount of sodium did not exceed 1 g 100 g−1. The amount of disqualifying nutrients (fat, trans fat, saturated fat and cholesterol) was significantly lower compared to similar products on the market. The conducted analyses showed that the highest CO2 emission occurred during the blanching process. The proportion of this process for small productions (2.0 kg) ranged from 62% to 68%. The process of vegeburger formation had the second largest percentage in emissions and accounts for 22% to 24% for small productions (2.0 kg). The total carbon footprint was 1.09–1.13 kg CO2/kg of product, respectively, i.e., about 0.10–0.12 kg CO2 per one vegeburger. The research demonstrated that the process of producing vegeburgers from vegetable outgrades is a low-emission process compared with other agri-food technologies. Considering the above, this study allows for improvement of the management of waste from frozen food production, and is also the basis for the development of low-emission agri-food technologies.

The objective of this study was to investigate the effect of the addition of transglutaminase (TG) preparation Saprovia L ® (PMT TRADING Co. Ltd, Lodz, Poland) on the properties of ice cream with 40 g/kg and 70 g/kg fat content. TG was added at a concentration of 2 U/g protein. We studied the effect of transglutaminase on fresh and 3-month-stored at -25ºC ice cream. Ice cream mixes were prepared with 5 g/kg stabilizer. Melting test was performed after thermal shocks until the "1st drop" occurrence. The amount of effl uent was measured within the 0-120 min time frame. We evaluated the appearance of the samples and carried out the TPA and compression analysis. The addition of the enzyme has increased the resistance of stored ice cream to repeated thermal shocks.Unauthenticated Download Date | 5/12/18 8:40 PM

Cornelian cherry (Cornus mas L.) fruits are a well-known source of antioxidants and other biologically active compounds, and these compounds depend on maturity. Ripeness is recognized by means of a visual assay of the growing fruit. The study aimed to determine the relationship between the color of the tested cultivars of Cornus mas and their content of the predominant compounds (i.e., flavonoids, anthocyanins, vitamin C, carotenoids and chlorophyll). The studied deviation between cultivars is based on the tested parameters and compared with the genetic profile of Cornelian cherry cultivars. Cornelian is a rich source of anthocyanins and flavonoids. Particularly valuable is the cv. Szafer variety, which color is the darkest and the richest in phenols, flavonoids and anthocyanins. However, the correlation between colorimetric and chemical parameters is found to be low for most variables. Genetic polymorphism analysis showed different distances between the cultivars than the values resulting from chemical analyses. The part of fruit, which was subjected to colorimetric measurement, did not affect the distance projection. Colorimetric parameters were poorly correlated with spectroscopic results, but did not change the distances between the samples. Differences in fruit color and composition, and genetic relationship can be drawn from the adaptation of different cultivars to the current study.

The role of universities has been changing over last decades. In the modern society the Humboldtian model of higher education is quite obsolete concept. As a result of competition and globalization, the universities have to be adapted. The question is: how? We have to create The Thrid Generation University that aims to not only learn and research but also to collaborate with industries. Thus IN this collaboration not only university would be a „winner”, but also this kind of partnership can be beneficial for the business environment. This paper reports on a case study of Wrocław University of Environmental and Life Sciences in the moment of transformation. The activity of WUELS will serve as an example – and will be also a basis to analyze the model of knowledge transfer.