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Basic chemical characteristics of juices of selected honeysuckle varieties
Cibulcová, Pavla ; Vránová, Dana (referee) ; Vespalcová, Milena (advisor)
This thesis includes a theoretical part, which speaks about the classification and incidence of honeysuckle plant description, the conditions for growth, recovery, species and varieties. It also includes methods for the determination of selected chemical parameters such as yield, total solids, soluble solids, pH, titratable acidity, formol number and gravimetric determination of reducing sugars.
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Monitoring of vitamin E content in the samples of cereals
Cibulcová, Pavla ; Borkovcová,, Ivana (referee) ; Benešová, Karolína (advisor)
Thesis deals with the analysis of vitamin E in cereal samples, namely barley and wheat and malt produced from them. Selected samples were treated with low-temperature plasma, fungicide and biological treatment to elimination fungus and mycotoxins. The aim of the thesis was to find out the influence of the treatment, the combination of several types of treatment on vitamin E content in grain and malt. If the content of health-positive substances is not reduced and grain can be used for food, malt, or for feed purposes. The theoretical part focuses on the properties, occurrence, biochemistry and importance of vitamin E for living organisms. It also focuses on the properties of cereals that are a significant source of vitamin E. Malt production and sample treatment are also described. The experimental part describes the field experiment, individual types of treatment, extraction of vitamin E from the samples and determination of vitamin E content by high performance liquid chromatography with fluorescence detection. The results are compared with the current literature. It was found that the treatment did not have a significant negative effect on vitamin E content.
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Monitoring of vitamin E content in the samples of cereals
Cibulcová, Pavla ; Borkovcová,, Ivana (referee) ; Benešová, Karolína (advisor)
Thesis deals with the analysis of vitamin E in cereal samples, namely barley and wheat and malt produced from them. Selected samples were treated with low-temperature plasma, fungicide and biological treatment to elimination fungus and mycotoxins. The aim of the thesis was to find out the influence of the treatment, the combination of several types of treatment on vitamin E content in grain and malt. If the content of health-positive substances is not reduced and grain can be used for food, malt, or for feed purposes. The theoretical part focuses on the properties, occurrence, biochemistry and importance of vitamin E for living organisms. It also focuses on the properties of cereals that are a significant source of vitamin E. Malt production and sample treatment are also described. The experimental part describes the field experiment, individual types of treatment, extraction of vitamin E from the samples and determination of vitamin E content by high performance liquid chromatography with fluorescence detection. The results are compared with the current literature. It was found that the treatment did not have a significant negative effect on vitamin E content.
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Basic chemical characteristics of juices of selected honeysuckle varieties
Cibulcová, Pavla ; Vránová, Dana (referee) ; Vespalcová, Milena (advisor)
This thesis includes a theoretical part, which speaks about the classification and incidence of honeysuckle plant description, the conditions for growth, recovery, species and varieties. It also includes methods for the determination of selected chemical parameters such as yield, total solids, soluble solids, pH, titratable acidity, formol number and gravimetric determination of reducing sugars.
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