Assessment of apple (Malus×domestica Borkh.) fruit texture by a combined acoustic-mechanical profiling strategy

Mechanical and acoustic evaluation of potato chip crispness using a versatile texture analyzer

“…This setting was similar to previous studies of simultaneous measurement of force-displacement and sound (Chen et al, 2005;Costa et al, 2011;Saeleaw and Schleining, 2011a;Salvador et al, 2009;Varela et al, 2006). Castro-Prada et al (2007) addressed the problem of the inherently low sampling rate of commercially available texture analyzers (up to 500 Hz) and emphasized the importance of the data sampling rate during a complete analysis of acoustic data.…”

“…Costa et al (2011) applied this technique to investigate the texture of apples and claimed that the mechanical profile alone was insufficient for reliable texture analysis during apple 0260-8774/$ -see front matter Ó 2012 Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.jfoodeng.2012.05.015 cultivar selection.…”

Instrumental acoustic-mechanical measures of crispness in apples

“…Moneta, and Sinesio (1993) found a high correlation between sensory mealiness and instrumental cohesiveness, and Barreiro et al (1998) profiled mealiness as a loss of crispness and juiciness. Costa et al (2011) showed good correlation between firmness, crispness, and juiciness. Juiciness (J) was carried out on the same seven apple cultivars used to run the acoustic-mechanical test previously discussed.…”

The use of a laser Doppler vibrometer to assess watermelon firmness

“…Because the mass loading of the accelerometer could cause errors, particularly when testing light or small structures or highly damped nonlinear materials (D'Emilia et al, 1989;Castellini et al, 2006), true tissue vibration cannot be measured accurately with contact sensors (Terasaki et al, 2001). To overcome this drawback, alternative noncontact sensors, such as microphones (Mendoza et al, 2012;Costa et al, 2011) and the laser Doppler vibrometer (LDV), were introduced to provide a measurement of vibration response. The LDV measures the vibration velocity of the object via the Doppler shift of the laser beam frequency, which has a flatter response function over a wider range of frequencies compared with the microphone and shows superior performance over the microphone on its resistance to ambient noise (Taniwaki and Sakurai, 2010;Kondo et al, 2014).…”