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Possibilities of processing the fruit of lesser-known fruit tree species
Vachta, Jonáš ; Hudečková, Helena (referee) ; Mikulíková, Renata (advisor)
This diploma thesis deals with the possibilities of using the fruits of common quince (Cydonia oblonga), common medlar (Mespillus germanica) and flowering quince (Chaenomeles speciosa) for food purposes, specifically for the production of jellies and jams. The goal was to create a product that would capture the character of the fruit used, preserve its beneficial properties, such as aromas and the content of bioactive substances, and at the same time be pleasant for consumers. A total of three types of products were prepared, namely gelatin jelly, agar jelly and jam for each type of fruit used. The product samples were subjected to sensory analyses, the aim of which was to determine the optimal addition of sugar to the product, to determine the overall consumer acceptability of the individual samples, and in the case of jelly, also to compare the sensory properties of the gelatin and agar variants. For chemical analyses, model samples were prepared, the composition corresponding to the best sensorially evaluated samples from each type of product. The total content of polyphenols, the total content of flavonoids, the content of vitamin C, the content of lipophilic pigments, ubiquinone and phytosterols and the profile of volatile compounds in individual samples were studied. The analysis results showed that the jams, as heat-processed products, generally retained a greater amount of bioactive substances compared to the jelly samples, and in certain cases even a greater amount than the fruit samples. The jelly samples, on the other hand, retained a greater amount of the original fruit aroma.
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Senzorická analýza řeckých jogurtů s brusinkovým džemem
Paráková, Jana
The aim of this thesis was to study the available literature on the production of jams, Greek-style yogurt, sensory analysis of yogurts and methodology for FaceReader. Than was made 10 samples of cranberry jam. It was followed by sensory analysis of jams and jams with commercial Greek-style yogurts. Best overal impression did jam from pressed cranberries (50 g of sugar per 100 g of fruit). In category of Greek-style yogurt with jam was rated the best yogurt Elinas with the same jam. It was found that the overal impression was influenced by intensity of sweetness. Using a computer program FaceReader was rated five jams from pressed cranberries. Top jam was again jam from pressed cranberries (50 g of sugar per 100 g of fruit). For evaluation of yogurt with jam using FaceReader was the best another jam from pressed fruit (55 g of sugar per 100 g of fruit).
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The impact of value addition to fresh mangoes on the Socio-economic development of small scale mango farmers in Ghana
Jašková, Ivana
This diploma thesis aims to analyse the possibilities of processing the mangoes that farmers in Ghana regularly discard. Furthermore, it demonstrates, that by adding a value to the mango processing industry, the income of a farmer in Ghana could be considerably increased, leading to higher standard of living. The practical part of the thesis is based on literature research and introduces a business plan for the mango jam production in the Eastern Region, using simple and technologically undemanding processes. The study also provides economic calculations and overall project assessment. The estimated socioeconomic impacts of processing the mango surplus on the farmer can be found at the end of the thesis.
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Jakostní parametry vybraných výrobků z jahod v maloobchodní síti
Kopřivová, Anna
Quality parametres of jams in the retail network In bachelor thesis on the topic Quality parametres of jams in the retail network I performed basic characterization of strawberries and material compounds. In laboratory was measured dry matter, titration acids, antioxidants capacity, sensory analysis and stastistic evaluation. Ten products was compared each other- conventional versus BIO product. In sensory analysis of strawberry jams was measured flavour, odor, look a overal impresion. It was found that not high price of products is directly proportional with high quality. Respondents are not strongly support BIO products more than conventional products.
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Sekundární produkty révy vinné a vína
Cenková, Lenka
This Diploma thesis first deals with composition of the bunch of grapes and must. The following is a description of the selected consumable secondary products such as must, dealcoholized vine, jam, marmalade, jelly from must, vine jelly, grape seed oil, flour from grape seeds. Further describes other secondary products such as pomace (marcs) and vineyeard prunings and their usage and mentioned is also a significant waste resulting from the grape vine cultivation and vine production and its possible utilisation. In the practical part of the thesis there is performed the procedure of the production (conservation) of grape vine must and production of jelly from must from cultivars "Veltlínské zelené" and "Dornfelder". These 2 samples of jellies were then together with other 6 samples of similar products (5 of them vine products from other vineries, 1 product from different fruit - cherries) organoleptically evaluated and analytically measured in the laboratory. The results are processed into tables, charts, and statistically and verbally commented.
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The impact of value addition to fresh mangoes on the Socio-economic development of small scale mango farmers in Ghana
Jašková, Ivana
This diploma thesis aims to analyse the possibilities of processing the mangoes that farmers in Ghana regularly discard. Furthermore, it demonstrates, that by adding a value to the mango processing industry, the income of a farmer in Ghana could be considerably increased, leading to higher standard of living. The practical part of the thesis is based on literature research and introduces a business plan for the mango jam production in the Eastern Region, using simple and technologically undemanding processes. The study also provides economic calculations and overall project assessment. The estimated socioeconomic impacts of processing the mango surplus on the farmer can be found at the end of the thesis.
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Senzorická analýza řeckých jogurtů s brusinkovým džemem
Paráková, Jana
The aim of this thesis was to study the available literature on the production of jams, Greek-style yogurt, sensory analysis of yogurts and methodology for FaceReader. Than was made 10 samples of cranberry jam. It was followed by sensory analysis of jams and jams with commercial Greek-style yogurts. Best overal impression did jam from pressed cranberries (50 g of sugar per 100 g of fruit). In category of Greek-style yogurt with jam was rated the best yogurt Elinas with the same jam. It was found that the overal impression was influenced by intensity of sweetness. Using a computer program FaceReader was rated five jams from pressed cranberries. Top jam was again jam from pressed cranberries (50 g of sugar per 100 g of fruit). For evaluation of yogurt with jam using FaceReader was the best another jam from pressed fruit (55 g of sugar per 100 g of fruit).
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