Firmness Measurement of Muskmelons by Acoustic Impulse Transmission

Sugiyama, Junichi; Otobe, Kazunori; Hayashi, Setsuo; Usui, Shiro

doi:10.13031/2013.28201

Cited by 45 publications

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“…The propagation velocity of sound in an agricultural product sample was extensively studied in a series of investigations performed by Sugiyama's group (Sugiyama, 2001;Sugiyama et al, 1994Sugiyama et al, , 1998. Sugiyama et al (1994) studied the propagation velocity of sound in muskmelons, which were mechanically excited by hitting with a pendulum, and the induced vibrations were sensed by a microphone at various points on the sample surfaces.…”

Section: ) Nondestructive Deformation Methodsmentioning

confidence: 99%

“…Sugiyama et al (1994) studied the propagation velocity of sound in muskmelons, which were mechanically excited by hitting with a pendulum, and the induced vibrations were sensed by a microphone at various points on the sample surfaces. They found that the velocity decreased as the muskmelons ripened and that the velocity and firmness of flesh were well correlated.…”

Section: ) Nondestructive Deformation Methodsmentioning

confidence: 99%

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Evaluation of the Internal Quality of Agricultural Products using Acoustic Vibration Techniques

Taniwaki

Sakurai

2010

J. Japan. Soc. Hort. Sci.

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Evaluation of the quality of agricultural products is important because this is the basis for consumer purchases. Consumers may evaluate products on the basis of factors such as fragrance, appearance, and hardness. Texture is one of the most important factors, especially as an indication of freshness. For agricultural products that ripen after harvest, the degree of ripeness is an important factor for optimum edibility. Ripeness evaluation ideally needs to be nondestructive. Various methods have been proposed to evaluate food texture and the nondestructive evaluation of fruit ripeness. This paper reviews such methods and recent developments, focusing on those that use acoustic vibration techniques.

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Section: ) Nondestructive Deformation Methodsmentioning

confidence: 99%

Section: ) Nondestructive Deformation Methodsmentioning

confidence: 99%

Evaluation of the Internal Quality of Agricultural Products using Acoustic Vibration Techniques

Taniwaki

Sakurai

2010

J. Japan. Soc. Hort. Sci.

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“…In the last decades, different acoustic techniques have been developed in order to measure the quality of fruits: firmness, external and internal defaults, diseases, changes during the shelf life, etc. Thus, acoustic techniques have been applied for measuring the firmness of several fruits such as apples [1], pears [2], melons [3], kiwifruits [4], tomatoes [5], pineapples [6] and mandarins [7]. Acoustic measurements have also allowed to identify external defects on egg [8] or pistachio [9] and internal defaults in pears [10], watermelons [11], cheese [12] and potatoes [13].…”

Section: Introductionmentioning

confidence: 99%

“…Elastic properties of biological tissues gave a vibrational behavior, which is used as an indicator of their internal characteristics [15]. Several non-destructive techniques were developed to observe this behavior: (1) the product may be hit with a small hammer [16]; (2) dropping onto an impact plate [17] and, (3) submitted to an ultrasonic pulser [18] or laser Doppler vibrometer [19].…”

Section: Introductionmentioning

confidence: 99%

On the quality of acoustical measures when evaluating fruits quality

Tiplica

Verron

Grémy-Gros

et al. 2015

Int. J. Metrol. Qual. Eng.

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Abstract. In this article we show that, without any technological modification, an acoustic firmness sensor used for estimating fruits firmness, can also be used in order to discriminate between different apple varieties. A repetability and reproducibility (R&R) analysis shows that the device is capable to measure not just the mass and the resonance frequency of fruits but also some other key spectral characteristics as well. Thus, 18 key features were identified and used for the classification of apples belonging to 10 different varieties. The prospects of this study are interesting in the context of sorting automatically fruits.

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“…o su relación con el diámetro del fruto denominada índice de carne (Abadía et al, 1984;Costa et al, 1989), grosor de corteza (Costa et al, 1989;Artés et al, 1993;Hannachi y Mehouachi, 1994), firmeza de la pulpa (Mizrach et al, 1991;Miccolis y Salveit, 1991;Artés et al,1993;Sugiyama et al, 1994) y contenido en azú-car (Artés et al, 1993;Pinto et al, 1995;del Amor et al, 1999).…”

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Effect of irrigation and potassium application in melon (Cucumis melo L.) production. II: Quality

Ribas

Cabello

Moreno

et al. 2003

Span. j. agric. res.

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IntroducciónAl hablar de la calidad del fruto del melón, es frecuente que en la literatura se haga referencia exclusivamente al tamaño del mismo (Mannini, 1988;Ferrer et al., 1992;Pellicer et al., 1997). Otros autores consideran también como parámetros de calidad la relación entre la longitud y la anchura denominada índice de forma, ya que contribuye al aspecto que presenta el fruto y a la aceptación que tendrá en el mercado (Artés et al., 1993;Kuboi, 1994), el grosor de la pulpa ResumenEn este trabajo se estudia el efecto de distintas dosis de riego y potasio en la calidad del cultivar de melón Piel de Sapo durante las campañas de 1995 y 1996. El diseño estadístico fue en parcelas divididas con cuatro repeticiones, donde el riego fue el factor principal y el potasio el factor secundario. Los niveles hídricos se determinaron en función de las necesidades de riego calculadas (NRc) a partir de la evapotranspiración del cultivo, ensayándose 4 tratamientos correspondientes a 1,25 NRc; 1,00 NRc; 0,75 NRc y 0,50 NRc. Se aplicaron dos tratamientos de potasio K 0 (0 UF) y K 1 (375 UF de K 2 O en 1995 y 2 L ha -1 de un producto comercial conteniendo 20% p/v de K 2 O en 1996). La aplicación de potasio no influyó de forma significativa en ninguno de los parámetros de calidad, salvo en la firmeza de la pulpa medida en la zona placentaria en el año 1995. En los dos años, el déficit hídrico redujo significativamente el calibre del fruto y el grosor de la pulpa. Con restricciones severas disminuyó drásticamente el porcentaje de frutos de tamaño superior a los 2,5 kg. Sin embargo, el porcentaje del peso de la placenta y semillas respecto al total del fruto, y el contenido de azúcares aumentó de forma significativa en los tratamientos más deficitarios. En 1995, el grosor de corteza disminuyó a medida que lo hizo el riego, mientras que la firmeza de la pulpa aumentó. Desde el punto de vista de la calidad del melón, hay que garantizar unas dosis de riego próximas a las necesidades del cultivo, con el fin de conseguir el mayor porcentaje de frutos grandes conteniendo cantidades aceptables de azúcar.Palabras clave: riego por goteo, tamaño del fruto, índice de carne, firmeza de pulpa, grados Brix, azúcar. Abstract Effect of irrigation and potassium application in melon (Cucumis melo L.) production. II: QualityThe influence of different watering regimes and of potassium applications on the quality of the melon cultivar «Piel de Sapo» was studied over a two-year period (1995 and 1996). The statistical design was a split-plot with four replications, where irrigation was the main factor and applied potassium was the secondary factor. Water levels were determined according to the watering needs (NRc) calculated on the basis of crop evapotranspiration. Four irrigation treatments were tested: 1.25 NRc; 1.00 NRc; 0.75 NRc and 0.50 NRc. Two potassium treatments were applied: K 0 (0 UF) and K 1 (375 UF K 2 O in 1995 and 2 L ha -1 of a commercial product for spraying 20% of K 2 O in 1996). The potassium doses tested did not significantly influ...

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Firmness Measurement of Muskmelons by Acoustic Impulse Transmission

Cited by 45 publications

References 0 publications

Evaluation of the Internal Quality of Agricultural Products using Acoustic Vibration Techniques

Evaluation of the Internal Quality of Agricultural Products using Acoustic Vibration Techniques

On the quality of acoustical measures when evaluating fruits quality

Effect of irrigation and potassium application in melon (Cucumis melo L.) production. II: Quality

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