|
|
Metody nanášení hydrogelů na povrch ovoce a zeleniny
Hrabová, Martina
The aim of this thesis was to develop a methodology for applying biopolymer mixtures directly onto the surface of selected fresh foods, fruits and vegetables, and to evaluate the prospects of biopolymer mixtures based on egg white. The theoretical part of this thesis outlines the issue of the packaging industry and the causes of food spoilage. Furthermore, methods for the application of biopolymeric coatings and films on a laboratory scale are described and natural polymers are summarized. In the experimental part of the thesis, the most suitable coating mixture was selected regarding the evaluation of strawberry and cucumber samples’ coating made of different biopolymeric mixtures. For this coating mixture, the samples of fruit and vegetable were subjected to analysis by near infrared spectroscopy.
|
|
|
Technologické parametry a konzervárenské zpracování plodové zeleniny
Pechová, Lenka
The thesis is focused on technological parameters and canning of fruit vegetables. The literary section describes the different kinds of vegetables grown, its material composition, crop changes, storage and conservation options. The practical part of the laboratory and sensory evaluated gherkins variety ZUZANA F1, ORFEUS F1, REGINA F1, KAREN F1, PARTNER F1 and KARLOS F1. Laboratory quality parameters were evaluated different varieties and sizes, weight, color, firmness, soluble solids content, malic acid concentration and all titratable acids. Preservation was chosen sterilization in sweet and sour marinade. The results were statistically evaluated tabular and graphical.
|
|
| |
|
| |
|
| |
|
| |
|
| |
guest ::
