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Wyświetlanie 1-4 z 4
Tytuł:
Buckwheat as an Interesting Raw Material for Agricultural Distillate Production
Autorzy:
Ługowoj, Szymon
Balcerek, Maria
Pielech-Przybylska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1369595.pdf
Data publikacji:
2020
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
buckwheat
reducing sugars
starch content
ethanol fermentation
agricultural distillate
volatile compounds
Opis:
The objective of this study was to assess the suitability of buckwheat grain for agricultural distillate production. The effects of the method of starch liberation on the physicochemical composition of the prepared mashes, fermentation results, the concentration of volatile compounds in the obtained distillates, and their organoleptic features, were investigated. The raw materials used were two cultivars of buckwheat grains, Panda and Kora. Both cultivars were characterized by similar starch content, however Panda cultivar had a significantly higher content of reducing sugars. Fermentation of the Kora cultivar-based mashes resulted in a higher fermentation efficiency (up to approximately 85% of the theoretical yield) compared to the Panda cultivar-based mashes (up to approx. 75%). Of the tested methods of starch liberation, the pressure-thermal treatment was revealed as superior, especially in the case of the Panda cultivar. In the case of the Kora cultivar, both the pressure-thermal method and the pressureless method of starch liberation resulted in a high process efficiency (up to 85% of the theoretical). Supplementation of the buckwheat mashes with (NH4)2HPO4 improved fermentation results. The highest scores in sensory assessment were given to distillates from mashes prepared with the pressure-thermal treatment, which contained relatively low concentrations of undesirable compounds, such as acetaldehyde and methanol, and revealed pleasant organoleptic features.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2020, 70, 2; 125-137
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antioxidant Capacity of Lentil Flour Hydrolysates Obtained with Pancreatin
Autorzy:
Sulewska, Katarzyna
Rybarczyk-Płońska, Anna
Karamać, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2152156.pdf
Data publikacji:
2022-11-13
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
lentil proteins
degree of hydrolysis
radical scavenging activity
reducing power
ferrous ion chelating activity
Opis:
Lentil is a valuable protein-rich crop, the health-promoting value of which can be further enhanced by its protein hydrolysis. In the present study, lentil flour was treated with pancreatin and the antioxidant capacity of the obtained hydrolysates with different degrees of hydrolysis (DH, 4–20%) was determined and compared with that of flour. The molecular weight (MW) distribution of the lentil proteins and their products of hydrolysis was analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Size exclusion-high-performance liquid chromatography (SE-HPLC) was deployed to show the profile of low MW compounds of the hydrolysates. Additionally, total phenolic contents were determined with the Folin-Ciocalteu’s phenol reagent. The hydrolysates had higher antiradical activity against DPPH, Trolox equivalent antioxidant capacity (TEAC) measured by the assay with ABTS•+, ferric reducing antioxidant power (FRAP), and ability to bind Fe2+ compared to lentil flour. Between the hydrolysates, the highest DPPH scavenging activity (EC50 of 0.298 mg/mL), TEAC (98.6 µmol Trolox/g), FRAP (109.2 μmol Fe2+/g), antioxidant capacity of lipid-soluble compounds (ACL) determined by photoluminescence method (4.32 µmol Trolox/g), and Fe2+ chelating activity (80% at hydrolysate concentration of 0.3 mg/mL) were found for those with low DH (4–8%), which contained some subunits of proteins, polypeptides, and peptides with a wide MW range (0.556–66 kDa). The total phenolic content increased with increasing DH. In conclusion, the antioxidant capacity of lentil flour can be significantly improved by the limited hydrolysis of its proteins with pancreatin, as a result of the release of polypeptides and peptides with a wide range of MW. Thus modified lentil flour may be addressed and explored in future research as a functional food ingredient.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2022, 72, 4; 381-391
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of physical-chemical properties of amylophosphoric acid and mono-starch phosphate salts
Autorzy:
Fortuna, T.
Gibinski, M.
Palasinski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1371740.pdf
Data publikacji:
1992
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
water binding capacity
physicochemical property
paste transparency
reducing capacity
mono-starch phosphate salt
amylophosphoric acid
Źródło:
Polish Journal of Food and Nutrition Sciences; 1992, 01, 3; 119-124
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of properties of amylophosphoric acid and di-starch phosphate salts
Autorzy:
Fortuna, T.
Gibinski, M.
Palasinski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1371451.pdf
Data publikacji:
1992
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
calcium
physicochemical property
water binding capacity
sodium
paste transparency
di-starch phosphate salt
potassium
reducing capacity
salt
pasting
amylophosphoric acid salt
Źródło:
Polish Journal of Food and Nutrition Sciences; 1992, 01, 4; 115-120
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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