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Background. Potato pulp constitutes a complicated system of four types of polysaccharides: cellulose, hemicellulose, pectin and starch. Its composition makes it a potential and attractive raw material for the production of the second generation bioethanol. The aim of this research project was to assess the usefulness of commer- cial enzymatic preparations for the hydrolysis of potato pulp and to evaluate...
The effects of supplementing cereal-based diets with 0, 40, or 80 g of pectin (P) or 270 g of rye (R) per kg on ileal digestibility of protein and amino acids (AA), and digesta viscosity in pigs of 20 kg body weight (BW), and on growth performance, nitrogen balance, small intestinal morphology, and threonine metabolism parameters in pigs of 15 kg BW were assessed. Digesta viscosity was increased more...
Sensory parameters of gluten-free bread depend on the amount and type of hydrocolloids used as gluten replacers, as this determines interactions between them and starch, which is the main component of dough. The evaluation of gluten-free breads supplemented with various amounts of guar gum, pectin and xanthan, proved that bread with addition of xanthan has higher volume in comparison with pectin-guar...
In Galanthus nivalis during the progamic phase, both the embryo sac and somatic cells of the ovule change their ultrastructure and physiology, as observed by light, fluorescence, and electron microscopy. Fresh ovules from buds, opening flowers, and from cross-pollinated flowers were stained in toto to detect pectins, acidic polysaccharides, proteins, lipids, callose, free calcium ions and membrane-bound...
Apple pectin and α-amylase (Termamyl) were used as anti-staling agents of pan bread. Additions of pectin and a-amylase were 0.5, 1.0, 1.5, 2.0% and 0.3, 0.6, 1.0, 1.5 KNU, respectively. Breads were stored at room temperature for 6 days. Baking quality, alkaline water retention capacity, texture properties, porosity, and microstructure of bread crumb were studied. Loaf volume and specific loaf volume...
The number of microorganisms in the jejunum and stomach of rats on pectin diet was found to be increased. In the case of animals fed diet with potassium nitrate and 10% pectin, methaemoglobin appeared in the blood, what was associated with increased number of the bacteria Enterobacteriaceae responsible for the reduction of nitrates to nitrites.
The effect of pectin on lowering the sodium nitrite intoxication was studied. It was found statistically significant reduction in the concentration of blood methemoglobin and blood plasma nitrite ions in rats intoxicated with sodium nitrite and fed diets with 5 and 10% pectin. These indices did not further change upon the increase of diet proportion of pectin to 15%.
The aim of the work was to determine the effect of sugar, pectin, and L-ascorbic acid added to strawberries on the selected physico-chemicaI and organoleptic traits of the frozen product. Powdered sugar at a dose of 10 g per 100 g of fruit or as the 60% syrup was used without any other substance or with an addition of pectin or ascorbic acid. The pectin preparation in a 1,5% solution at a dose of...
In the present work it was evaluated to what degree the selected fractions of dietary fibre, i.e. cellulose, lignin and high-methylated pectins with the metyla- tion degree of 56 or 73%, influence the determination of sodium nitrite added to in vitro gastric juice with the pH from 2.0 to 3.5. High-methylated pectin was the fraction of dietary fibre which was found to decrease the amount of sodium...
Fertile ovules of Oe. hookeri were compared with infertile ovules of Oe. mut. brevistylis. Their anatomy was very similar but maturation of Oe. mut. brevistylis ovules was delayed and they were not ready for fertilization at flowering time. Ovules of both Oenothera taxons divided into sample groups were stained or tested for histochemical reactions: PAS for insoluble polysaccharides, alcian blue for...
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