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Two-thirds of the US population is either overweight or obese. Obesity is one of the major drivers of preventable diseases and health care costs. In the US, current estimates for these costs range from $147 to $210 billion per year. Obesity is a multifactorial disease: genetics, lifestyle choices, metabolism, and diet. Low-fat diets have been suggested as the key to weight management. However, over...
This study determines the effect of full-stream and partial high pressure homogenisation (constant pressure of 100 MPa, different temperatures: 20˚C, 40˚C, 60˚C) on selected distinguishing features of the colloidal and emulsion phases of milk. The pH values of milk decreased significantly (p<0.05) as a result of full-stream homogenisation, while they remained unaffected by partial homogenisation...
During the cultivation and harvesting of fruit and vegetables, a large number of microorganisms accumulate on their surface. Their active and excessive reproduction leads to spoilage of products. The purpose of the study was to assess the effect of combining various packaging technologies with different biopreservatives on the stability of physicochemical and microbiological characteristics of fresh...
A microwave-assisted extraction (MAE) technique was employed on grape skin pomaces to enable the extraction of different groups of phenolic compounds (total phenolics, tannins, fl avonols, and hydroxycinnamic acids) and to obtain extracts with the highest antioxidant capacity (ORAC). The single-step extraction process was modeled and optimized by means of artifi cial neural network (ANN) and response...
In this study, we produced novel, natural and fermented apple-Cornelian cherry beverages rich in natural antioxidants. These products were examined for their physicochemical parameters, and antioxidative properties as well as subjected to the quantitative and qualitative identifi cation of iridoids and phenolics. The highest concentration of total phenolics determined with the Folin-Ciocialteu method...
The objective of this study was to determine and compare the effect of five different pretreatments including sulfite treatment (ST), osmotic dehydration (OD), steam blanching (SB), s team blanching plus osmotic dehydration (SB+OD), and ultrasound treatment (UT), on the microwave vacuum drying (MVD) kinetics, the physicochemical properties, and sensory quality of the apple slices. The results showed...
This work focused on analysing the content of selected sterols and profi le of fatty acids of edible insect species – mealworm (Tenebrio molitor) and superworm (Zophobas morio), which are expected to increase their usability in human nutrition. Sterols content was determined using capillary gas chromatography method. Cholesterol content was determined at 1335 mg/kg in dry matter (DM) for the mealworm,...
The aim of this research was to investigate the effects of pre-fermentative maceration, Saccharomyces and non-Saccharomyces yeasts during alcoholic fermentation, and antioxidant additions (sulfur dioxide and glutathione) at bottling on the compositions of aroma and phenolic compounds of white wine Pošip (Vitis vinifera L.). Additionally, for the fi rst time the insight in volatile thiol precursors...
The different duration of a strawberry phenolic fraction intake and different post-intake time were experimental factors affecting the concentrations of ellagitannin metabolites in the urine and blood serum of rats. For four days, the animals were gavaged once a day as follows: group C (water, days 1–4), group F1–4 (fraction, days 1–4), group F1–3 (fraction, days 1–3; water, day 4), group F1–2 (fraction,...
The results of the effects of transglutaminase (TG) and bacterial concentrates (BC) of different strains of microorganisms on the functional and technological properties of minced meat obtained from beef trimming (80/20) are presented. A control and seven experimental samples of minced meat were obtained - three samples with the addition of 10% BC: Bi lact-Pro, Bi lact-AD, Bi lact-Ker (S-Pro, S-AD,...
The total phenolic content (TPC), total fl avonoid content (TFC), and the antioxidant activity of soursop (Annona muricata L.) leaf, fruit pulp, seed, and peel extracts obtained using successive extraction with hexane (Hxn), dichloromethane (DCM), ethyl acetate (EtOAc), and methanol (MeOH) were determined. The Hxn soursop seed extract was analysed by GC-MS. The highest TPC was determined in MeOH extracts...
Lemongrass essential oil comes from the lemongrass plant (Cymbopogon citratus), which grows mainly in tropical and subtropical parts of the world. The pre x IJlemonij indicates its typical lemon-like odour, which is caused mainly by the presence of citral. Citral is a combination of two stereoisomeric monoterpene aldehydes; the trans isomer geranial is in predominance to the cis isomer neral. Lemongrass...
Kombucha is a fermented tea beverage, which is traditionally prepared by fermenting sweetened black tea with tea fungus, which is a consortium of yeasts and acetic acid bacteria. In this paper, viability of selected wild strains of lactobacilli during Kombucha fermentation, their interaction with tea fungus and their contribution in obtaining a beverage of increased functional characteristics were...
In this work, the effect of single fermentation of maize mashes with Fresco DVS 1010 culture (Lactococcus lactis ssp. lactis, Lactococcus lactis ssp. cremoris, and Streptococcus thermophilus) was studied for 8 h (37°C) followed by a storage period of 21 days (6°C). Although milk is a typical growth medium for lactic acid cocci of the Fresco culture, fermentation increased its counts by about 3 log...
Salmon esh spoilage can be greatly reduced through the use of preservation methods, using natural products combined with low temperature and packaging. Microbiological and physicochemical characteristics of fresh salmon llets (Salmo salar), sprayed with an aromatic vinegar and stored in modi ed atmosphere packaging, were investigated. Fillets were kept at 4°C and sampled after 2 h and 3, 7 and 10...
Plants of the genus Crataegus, Rosaceae, are widely distributed and have long been used for food and in folk medicine for the treatment of various ailments. This study focused on HPLC-DAD-FLD identifi cation of phenolic compounds of flowers, fruits, and leaves of hawthorn (Crataegus pentagyna Willd.), on monitoring changes in the content of phenolic compounds during different harvesting periods, as...
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