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Textural properties of infra red dried apple slices as affected by high power ultrasound pre-treatment (CROSBI ID 166573)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Brnčić, Mladen ; Karlović, Sven ; Rimac - Brnčić, Suzana ; Penava, Antonija ; Bosiljkov, Tomislav ; Ježek, Damir ; Tripalo, Branko Textural properties of infra red dried apple slices as affected by high power ultrasound pre-treatment // African journal of biotechnology, 9 (2010), 41; 6907-6915

Podaci o odgovornosti

Brnčić, Mladen ; Karlović, Sven ; Rimac - Brnčić, Suzana ; Penava, Antonija ; Bosiljkov, Tomislav ; Ježek, Damir ; Tripalo, Branko

engleski

Textural properties of infra red dried apple slices as affected by high power ultrasound pre-treatment

Drying is a process frequently used in food industry, often based on the use of conventional methods using heat exchange by conduction or convection. This kind of method may lead to quality loss in structure, texture and sensory characteristics of final products. Consequently, the need for research of new drying methods arises. One of such methods is power ultrasound aided drying. The aim of this work was to investigate the impact of high power ultrasound pre-treatment on drying rate and textural properties of the infra red dried apple slices. Ultrasound device working at a frequency of 24 kHz with a power capacity of 200 W was used for ultrasound pre-treatment. The amplitudes used for ultrasonic pre-treatment were 50 and 100%. The results showed that the use of different amplitudes of ultrasound reduces the time of drying and allows elimination of more water from the apple slices. Usage of 50 and 100% of ultrasonic amplitude in great extent shortened the duration of drying (up to 40%). The results showed that hardness of samples gradually increases (50% amplitude – 97.260 N ; 100% of amplitude – 217.90 N) with increase of ultrasound intensity. As a result, hardness of untreated apple slices (41.037N) was significantly lower (p < 0.05).

High power ultrasound; amplitude; drying; apple

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Podaci o izdanju

9 (41)

2010.

6907-6915

objavljeno

1684-5315

Povezanost rada

Prehrambena tehnologija

Indeksiranost