National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Verifying of the method for assessment of allergenic aroma compounds in sweets
Maňáková, Adriena ; Diviš, Pavel (referee) ; Vítová, Eva (advisor)
This thesis deals with the assessment of aroma active compounds in non-chocolate confectionery and their influence on sensory quality. In the theoretical part the production technology of non-chocolate confectionery from raw materials to final product is described. Furthermore, aroma active substances, including those potentially allergenic, are characterized, and the method for their determination by solid phase microextraction and gas chromatography with mass spectrometry is briefly described. Sensory analysis and sensory evalutation methods are briefly desribed. Within expermental part of the work selected parametres of the HS-SPME-GC-MS method were optimized, aroma compounds in samples of hard candies were identified, and 24 potentially allergenic aroma substances were identified and quantified. Finally, a sensory analysis of these samples was performed. Differences in the number and type of volatile compounds were found between the samples. Overall 393 compounds were indetified including 19 allergens.
The content of aroma active compounds in sweets
Maňáková, Adriena ; Vespalcová, Milena (referee) ; Vítová, Eva (advisor)
This bachelor thesis deals with the assessment of aroma active compounds in non-chocolate confectionery. In the theoretical part the production technology of non-chocolate confectionery from raw materials to final product is described. Furthermore, aroma active substances, including potentially allergenic, are characterized, and the method for their determination by solid phase microextraction and gas chromatography with mass spectrometry is briefly described. The aim of the experimental part was identification of volatile substances and subsequent quantification of 24 potentially allergenic aroma substances by the HS-SPME-GC/MS method. Gummy candies, purchased in the regular market, were used as model samples. The differences in the number and type of volatile compounds were found between the samples. Overall 230 volatile compounds were indetified including 8 allergens. These were composed of 55 alcohols, 68 esters, 29 alkenes, 18 aldehydes, 25 ketones, 2 ethers, 3 epoxides, 9 carboxylic acids and 21 other compounds.

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