The aim of the trial was to test different production systems (conventional, integrated, organic and biodynamic production system and the control) and their impact on composition and content of various biochemical compounds of dwarf French beans (Phaseolus vulgaris L.) cv. Top Crop. Determination of sugars and organic acids was performed with HPLC system and identification of individual phenolic compounds using HPLC-MS. Biochemical composition of the beans was unaffected by the production systems, however, the content levels of individual compounds were changed. Beans from the conventional production system contained lowest levels of fructose, glucose, ascorbic acid and many phenolics from various groups. The pods from integrated production contained lowest levels of glucose and sucrose and highest levels of catechin, procyanidin dimers and vanillic acid derivative. The control treatment, as well as organic and biodynamic productions positively affected the levels of sugar content and caused a lower content of catechin and some other phenolic compounds. Different production systems can affect the level of compounds that influence the taste of French beans as well as the content of compounds important for human health.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 7482233The effect of Colletotrichum nymphaeae infection on the contents of sugars, organic acids, and individual phenolic compounds was investigated in strawberry cultivar ‘Clery’. Primary metabolites were determined with the use of HPLC-RI-PDA and secondary metabolites further confirmed with HPLC-PDA-MS. Colletotrichum nymphaeae caused a decrease in sucrose and an increase in fructose and glucose in strawberry fruit. A significant decrease in the content of organic acids was recorded in infected fruit. Different forms of ellagic acid, flavanols and flavonols were identified in strawberry runners and fruit. In fruit additionally four anthocyanins were identified. Significant differences in individual phenolic compounds in strawberry fruit were detected at the beginning of the infection compared to non-infected fruit. Specifically, ellagic acids significantly increased, flavonols generally decreased, and flavanols and anthocyanins increased with the progression of infection. Similarly, some forms of ellagic acid increased and others decreased in infected runners, procyanidins generally decreased and flavonols, increased but the differences were much less prominent compared to the fruit.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 4318824New findings on the importance of berries (strawberry, raspberry, blackberry, currants, gooseberry, blueberry, cranberry, elderberry, aronia, dogwood fruit ...) have greatly contributed to an increased consumption and production of these fruit. The advantages of berry fruit are nice appearance, rich nutritional value, uncomplicated cultivation on small production areas and in home gardens, and ultimately the economy of production. This manual presents many useful tips and describes several berry species. Moreover, it lists recommendations for the selection of a suitable location, soil, seedlings and planting time. It illustrates the methods of berry cultivation during the year and presents protection from pests and diseases. In the last part of the book the author lists some suggestions for berry use suck as fresh, frozen, dried, candied and processed fruit.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 256190720The applicative results obtained from a study on the fungus of the Colletotrichum genus were presented at 3rd Slovenian Fruit Growing congress with International Participation. The emphasis was on the presentation of the disease and severity of infection regarding fruit quality and yield. C. simmondsii caused a decrease in sucrose and an increase in fructose and glucose in strawberry fruit. Moreover, a significant decrease in malic acid was recorded in infected fruit. 12 forms of ellagic acid, 9 flavanols and 8 flavonols were detected in strawberry runners and 9 forms of ellagic acid, 6 flavanols, 7 flavonols and 4 anthocyanins in strawberry fruit. The changes in phenolic profile were evaluated from the beginning of the infection and results indicated that even at an early stage of infection the phenolic modifications occur. Specifically in fruit, ellagic acids, flavanols and anthocyanins significantly increased and flavonols decreased with the progression of infection. In infected runners, ellagic acid forms and procyanidins generally decreased and flavonols increased.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 7331193On the 11th Slovenian converence on plant protection with international participation a leacture was conduced a lecture about the production systems impact on composition and content of various biochemical compounds of dwarf French beans (Phaseolus vulgaris L.) cv. Top Crop. Determination of ndividual phenolic compounds using HPLC-MS. Biochemical composition of the beans was unaffected by the production systems, however, the content levels of individual compounds were changed. Beans from the conventional production system contained lowest levels of many phenolics from various groups. The pods from integrated production contained highest levels of catechin, procyanidin dimers and vanillic acid derivative. The control treatment, as well as organic and biodynamic productions caused a lower content of catechin and some other phenolic compounds. Different production systems can affect the level of compounds that influence the taste of French beans as well as the content of compounds important for human health.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 7699065