2015
DOI: 10.15193/zntj/2015/99/028
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Effect of Ultrasound Waves on Drying Process and Selected Properties of Beetroot Tissue

Abstract: S t r e s z c z e n i eCelem badań było określenie wpływu ultradźwięków, jako zabiegu wstępnego, na kinetykę suszenia tkanki buraka ćwikłowego i zużycie energii w tym procesie. Analizowano również wpływ obróbki wstęp-nej na zawartość suchej masy, zawartość barwników betalainowych oraz parametry barwy materiału. Plastry buraka ćwikłowego poddano działaniu ultradźwięków o częstotliwości 21 kHz przez 10, 20 i 30 min lub blanszowano 3 min w wodzie o temperaturze 90 ºC. Materiał wysuszono metodą konwekcyjną w temp.… Show more

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Cited by 7 publications
(14 citation statements)
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“…No significant differences (p>0.05) were observed in the final betaxanthins and betacyanins contents between R0 and F0 samples, thus, the betalain content of beetroot cubes after drying was not modified when samples were pre-frozen before drying. Comparing with other pre-treatments, according to Kowalski and Łechtańska (2015) and Fijalkowska et al (2015), osmotically (with 5 and 15% solutions of NaCl for 30, 60 and 90 min) or ultrasonically (at 21 kHz for 10, 20 and 30min) pre-treated dried beetroot presented higher or similar betalain content. However, TPC and AA, according to FRAP, CUPRAC and ABTS methods of the pre-frozen sample (F0), significantly decreased (p<0.05) in comparison with the R0 sample.…”
Section: Bioactive Compounds and Antioxidant Activity Determinationsmentioning
confidence: 80%
See 3 more Smart Citations
“…No significant differences (p>0.05) were observed in the final betaxanthins and betacyanins contents between R0 and F0 samples, thus, the betalain content of beetroot cubes after drying was not modified when samples were pre-frozen before drying. Comparing with other pre-treatments, according to Kowalski and Łechtańska (2015) and Fijalkowska et al (2015), osmotically (with 5 and 15% solutions of NaCl for 30, 60 and 90 min) or ultrasonically (at 21 kHz for 10, 20 and 30min) pre-treated dried beetroot presented higher or similar betalain content. However, TPC and AA, according to FRAP, CUPRAC and ABTS methods of the pre-frozen sample (F0), significantly decreased (p<0.05) in comparison with the R0 sample.…”
Section: Bioactive Compounds and Antioxidant Activity Determinationsmentioning
confidence: 80%
“…and 30 min) pre-treated, drying time reductions of 20-32% (drying at 60 ºC and 1.2 m/s) and 4.5-9% (drying at 70 ºC and 1.5 m/s) were observed, respectively (Fijalkowska et al 2015; Kowalski and Łechtańska 2015).…”
Section: Drying Kineticsmentioning
confidence: 92%
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“…The physico-chemical parameters of vegetables depend on soil, weather, and harvesting time. These factors account for the differences in the results for raw beetroot obtained by Fijałkowska et al [ 24 ], and Fijałkowska et al [ 25 ], who measured the same parameters before convective drying. These researchers stated that their analyzed beetroot had a dry matter of 14.3%; color coefficients of L* = 20.3, a* = 21, and b* = 5.6; a red pigment content of about 500 mg/100 g d.m.…”
Section: Resultsmentioning
confidence: 99%