
Bojana VoučkoUniversity of Zagreb · Department of Food Engineering
Bojana Voučko
PhD
About
31
Publications
5,093
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
435
Citations
Publications
Publications (31)
Sourdough fermentation is rarely used for gluten-free flatbread (GFFB), a product that is challenging to produce, especially when using high-fiber ingredients that bring nutritional benefits but lead to physical deterioration. The aim of this study was therefore to evaluate the fermentation performance of carob flour (CSPF), proso millet flour (PMF...
Sourdough fermentation of bran can overcome the technological problems encountered in bread making but favors the activity of endogenous β-glucanase leading to a degradation of β-glucans. This study investigated the effects of high-intensity ultrasound (US) pretreatment of oat bran (OB) and barley bran (BB) on its β-glucans content, properties, and...
Sourdough fermentation of bran can overcome the technological problems encountered in bread making but favors the activity of endogenous β-glucanase leading to a degradation of β-glucans. This study investigated the effects of high-intensity ultrasound (US) pretreatment of oat (OB) and barley (BB) bran on its β-glucans content, properties, and pres...
Dough retardation is commonly used to extend dough shelf-life, but it poses a challenge for flatbreads due to their large surface. This study explored the sourdough fermentation of oats and barley, addressing challenges in the retardation of dough for flatbread. Sourdough, using flour only or flour blended with bran (3:1), was fermented with a LIVE...
Legume flours can nutritionally enrich gluten-free bread but can also negatively affect its flavour. Although sourdough fermentation can improve bread flavour, its application to legume–cereal gluten-free matrices has been scarcely investigated. The aim of this study was to determine the effects of partial replacement (25%) of wholemeal rice with y...
The process of three-dimensional (3D) printing is of greatest interest to food science and engineering community because it offers numerous opportunities for innovative food design, new product formulations and personalized nutrition. Of particular interest are food inks based on cereal flours or starches, whose unique rheological properties make t...
Cereal bran possesses enzymes and antinutrients which should be reduced for their usability as a food ingredient high in dietary fiber, minerals, and antioxidants. This study investigated the influence of high-intensity ultrasound on enzymatic and antioxidant activities, phytic acid content (PA), and functional and rheological properties of oat and...
Oat and barley bran are high in dietary fiber (β-glucans), minerals, and antioxidants, have high activity of enzymes, but possess also antinutrients. This study aimed to investigate the influence of high-intensity ultrasound on enzyme and antioxidant activities, phytic acid content, as well as functional and rheological properties of oat and barley...
Research background. Millet bran is a by-product rich in dietary fibre, micronutrients and bioactive compounds which are often deficient in a gluten-free diet. Previously, cryogenic grinding has been shown to improve the functionality of bran to some extent, although it offered limited benefits for bread making. This study aims to investigate the e...
Interest in healthier snacks is on the rise. 3D printing of healthier snacks enables the use of alternative ingredients such as grain by-products, but also presents challenges such as dough darkening and post-process deformations. This work aimed to investigate the influence of the amount of oil (10–30% on flour basis), xylanase activity (17–57 U/g...
Since there are no products in the European market labelled as low-FODMAP (low in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols), patients with irritable bowel syndrome and non-celiac wheat sensitivity often consume gluten-free products. These naturally contain little FODMAP, but have poorer sensory properties and lower...
Food personalization and customization is now easier due to 3D printing, but the printing performance of gluten-free cereal material has hardly been explored. This research investigated the suitability of four gluten-free powder blends for snack 3D printing. The blends were analyzed for their powder properties, and a selected blend served as a mode...
Gluten free bakery products often contain high levels of starch and refined rice flour, ingredients that are hypoallergenic but of low nutritive value. Pumpkin seed cake is a gluten free, nutrient‐dense by‐product of the oil industry, unfortunately still mainly used as animal feed. This study aimed to optimize the use pumpkin seed cake (10‐30 %) fl...
Flavor is one of the most important, but also the least researched parameter of bread quality. Numerous volatile compounds that contribute to the flavor profile of bread are usually extracted by the headspace solid-phase microextraction (HS-SPME) method. The development of a reliable and sensitive HS-SPME method requires the selection and optimizat...
3D printing is an emerging technology that offers the ability to produce tailor-made foods. This work addresses the physical properties of 3D-printed snacks enriched with wheat bran as a function of flour type (oat, barley), addition of acidity regulators (citric acid, sodium bicarbonate), printing temperature (20 °C, 30 °C, 40 °C), and bran pre-pr...
Gluten-free bread is often characterised by poor nutritional value and bioactive profile. Legume flours have potential for its enrichment, but the effect of sourdough fermentation of legume matrices on the phenolics and antioxidant capacity of bread is scarcely investigated. Thus, this study aimed was to determine the effect of partial replacement...
Wheat bran has a short shelf life, which could be prolonged by reducing the activity of enzymes in lipid degradation. In this study, high-intensity ultrasound treatment (400 W, 80% amplitude, 15 min), with or without cooling, was investigated for reducing the activity of lipase and peroxidase of wheat bran. Lipid stability parameters (free fatty ac...
Buckwheat hulls (BWH) are a lignocellulosic material with valuable nutrient contents, especially rutin and dietary fibre, which are worth exploring from a food industry perspective. BWH are also a voluminous material that is difficult to grind to very fine particle sizes, which can be achieved under cryogenic conditions. Therefore, we investigated...
Cereal by‐products can negatively affect sensory properties and shelf life of foods if they are not pre‐processed in order to alter their physico‐chemical properties. Cryo‐grinding is an innovative method for processing cereal by‐products; therefore, we investigated the effect of adding cryo‐ground proso millet bran (10%) and buckwheat hulls (2%) o...
Wheat bran is a by‐product rich in bioactive compounds, but possess a strong polyphenol oxidase (PPO) activity, which can act undesirably on product quality. This study aimed to optimize the particle size (500, 255, 10 µm) of wheat bran and time and amplitude of high‐intensity ultrasound (HIU) treatment on the PPO activity, total phenolics, antioxi...
Research background:
Carob is widely cultivated Mediterranean plant, but its flour is scarcely used in bread making. Previous studies investigated the quality of wheat bread with added carob flour showing discrepant results. This study aims to investigate the fermentation performance, antioxidant activity, rheological behaviour and baking applicat...
This study aimed to valorise the underutilised by-product of proso millet decortication. Millet bran was sieved into three fractions with substantially different nutritional profile. The fraction with diameter <500 μm had the highest nutrient density (14% protein, 26% starch, 36% dietary fibre, 9% fat, and 3 mg GAE/g phenolics (d.w.)) and was analy...
Pumpkin seed cake, a by‐product of pumpkin seed oil production, is a potential source of nutraceuticals, which remain unexploited by current management practices. This research assessed its bioactive potential and investigated the effect of cryogenic grinding pretreatment on extractability of various nonpolar and polar bioactive molecules. Notable...
Acrolein is a toxic compound present in food. It can be formed by bacterial species isolated from sourdough or applied as sourdough starter cultures, such as Lactobacillus reuteri. To the best of our knowledge, the content of acrolein in sourdough bread has not yet been determined, neither has a method for its quantification in such a sample been p...
Millet is an unexploited cereal with potential in the food industry due to its nutritional value and resistance to harsh climate conditions. Nutritious millet byproducts have a potential application in the development of functional cereal products, but require processing in order to improve their physical and nutritional quality. Therefore, we inve...
Driven by the bakery industry urge to satisfy consumer demand for fresh, diverse and high quality bakery products, we investigated the influence of barley sourdough and vacuum cooling on shelf life quality of partially baked bread stored in modified atmosphere packaging at ambient conditions. Barley sourdough was fermented with Lactobacillus reuter...
Market reports show an increasing interest for healthy biscuits, with omega-3 and lignan rich flaxseeds being highlighted as key ingredients. Usage of milled flaxseed in comparison to the whole seed might improve bioaccessibility of lignans and omega-3, but also accelerate lipid oxidation, thus diminishing the consumers’ acceptability. This researc...
Purpose: Cookies were not generally viewed as functional contributors to well-being as they are primarily perceived as confectionery products. The purpose was to evaluate the potential of flaxseed-enriched cookies as carriers of lignans and omega-3 fatty acids – functional compounds that are lacking in the Western diet.
Design/methodology/approach...
Cookies are widespread confectionary cereal based product. Recently it was recognized that cookies can be easily transformed into nutritionally valuable functional product, while retaining the taste. However, this type of functional product can live on the market only if consumers adopt it. Therefore we investigated purchase habits of Croatian cons...
A need for food that contributes to individual nutrition and health status, and also to the sustainability of the planet, is rising as a consequence of consumer’s awareness of foods nutritional value and origin. This behaviour is mostly expressed through the preference toward organically grown and wholesome food. Science to some extent supports thi...