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Hranilna vrednost in sprejemljivost kruha z dodatkom fermentiranih mletih žuželk
ID Samsa, Nika (Author), ID Korošec, Mojca (Mentor) More about this mentor... This link opens in a new window, ID Požrl, Tomaž (Comentor)

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Abstract
Užitne žuželke predstavljajo naraven vir hranil in funkcionalnih spojin ter se v zadnjih letih vse pogosteje uporabljajo kot sestavina živil zaradi svoje visoke hranilne vrednosti. Vsebujejo beljakovine visoke biološke vrednosti, maščobe, minerale in bioaktivne spojine. V živilski industriji se mlete žuželke vse pogosteje uporabljajo za nadomestitev prehranskih izdelkov, pri čemer ne smemo zanemariti njihovega vpliva na tehnološke in senzorične lastnosti teh izdelkov. V magistrski nalogi smo preučevali vpliv dodatka hišnega črička in ličink velikega mokarja na hranilno in senzorično vrednost kruha s kislim testom. Mlete žuželke smo dodajali kot delno zamenjavo pšenične moke, v deležih 5 % in 10 %. Rezultati kemijskih analiz so pokazali, da je dodatek mletih žuželk vplival na zmanjšanje vsebnosti beljakovin v kruhu, povečala pa se je vsebnost maščob in pepela v kruhih. Senzorična ocena je pokazala, da večji odstotek zamenjave moke z mletimi žuželkami vpliva na neenakomerno poroznost, nepravilno obliko štručke, peskasto teksturo in specifično aromo po zemlji ali živalskem izvoru, kar je vplivalo na slabšo skupno oceno. Kruhi z 10 % zamenjavo moke z žuželkami so prejeli več negativnih komentarjev, zlasti v primeru hišnega črička. Nasprotno so bili kruhi s 5 % zamenjavo moke senzorično bolje ocenjeni, čeprav so še vedno nekoliko odstopali od kontrolnega vzorca. Senzorično oceno smo izvedli tudi s potrošniškim panelom, ki je najvišje na hedonski lestvici ocenil kontrolne kruhe, sledili so jim kruhi z manjšim odstotkom žuželk, kar kaže na previdno sprejemanje tovrstnih sestavin s strani potrošnikov.

Language:Slovenian
Keywords:užitne žuželke, Acheta domesticus, Tenebrio molitor, pšenični kruh, hranilna vrednost, senzorična analiza
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Publisher:[N. Samsa]
Year:2025
PID:20.500.12556/RUL-174472 This link opens in a new window
UDC:664.6:595.71/.79:641.1:543.92
COBISS.SI-ID:251627011 This link opens in a new window
Publication date in RUL:03.10.2025
Views:175
Downloads:42
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Secondary language

Language:English
Title:Nutritional value and acceptability of bread with added fermented pulverized insects
Abstract:
Edible insects represent a natural source of nutrients and functional compounds, and in recent years they have been increasingly used as ingredients in food products due to their high nutritional value. They are rich in high-quality proteins, fats, minerals, and bioactive compounds. In the food industry, ground insects are increasingly used to enrich food products, however it cannot be neglected their effect on technological and sensory properties of the products. In this master’s thesis, we examined the effect of adding ground house crickets and ground larvae of mealworm on the nutritional and sensory quality of sourdough bread. Ground insects were added at levels of 5 % and 10 % as a partial replacement for wheat flour. Results of chemical analyses showed that the addition of ground insects decreased the protein and increased the fat and ash content in the bread. The sensory evaluation found that higher insect additions contributed to uneven crumb porosity, irregular loaf shape, gritty texture, and a specific earthy or animal-like flavor, which negatively affected the overall score. Breads with 10 % insect content received more negative comments, especially those with added crickets. In contrast, breads with a 5 % flour substitution were scored higher in terms of sensory quality, although they still differed slightly from the control sample. The consumer panel gave the highest hedonic scores to the control breads, followed by breads with lower insect content, indicating cautious acceptance of such ingredients by consumers.

Keywords:edible insects, Acheta domesticus, Tenebrio molitor, sourdough bread, nutritional value, sensory analysis

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