Nondestructive detection of brown heart in pears by time-resolved reflectance spectroscopy

Zerbini, P. Eccher; Grassi, M.; Cubeddu, Rinaldo; Pifferi, Antonio; Torricelli, Alessandro

doi:10.1016/s0925-5214(01)00150-8

Cited by 66 publications

(28 citation statements)

References 15 publications

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“…Generally, the μ a values of kiwifruit tissue detected by the established integrating sphere system and the IAD method were comparable to those reported in other research (Zerbini et al, 2002;Qin and Lu, 2008). The μ a values of kiwifruit reported by Zerbini et al (2002) were 0.005-0.450 mm −1 in the range of 650-1000 nm based on the TRS technique.…”

Section: Absorption and Reduced Scattering Coefficients Of Kiwifruit supporting

confidence: 85%

“…The μ a values of kiwifruit reported by Zerbini et al (2002) were 0.005-0.450 mm −1 in the range of 650-1000 nm based on the TRS technique. In the study of Qin and Lu (2008), the μ a values of kiwifruit were 0.02-0.10 mm −1 in the range of 500-1000 nm based on the HISR method.…”

Section: Absorption and Reduced Scattering Coefficients Of Kiwifruit mentioning

confidence: 86%

“…In the past decade, investigations for measuring tissue absorption and scattering coefficients of agro-products became popular for the previously mentioned reasons. Much attention was paid to the optical properties of apples perhaps because of the universality of this crop (Cubeddu et al, 2001a;2001b;Zerbini et al, 2002;Qin and Lu, 2008;Vanoli et al, 2009;Lu et al, 2010;Rizzolo et al, 2010). Other fruits (peach (Cen et al, 2012), pear (Zerbini et al, 2002), plum (Qin and Lu, 2008), etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Much attention was paid to the optical properties of apples perhaps because of the universality of this crop (Cubeddu et al, 2001a;2001b;Zerbini et al, 2002;Qin and Lu, 2008;Vanoli et al, 2009;Lu et al, 2010;Rizzolo et al, 2010). Other fruits (peach (Cen et al, 2012), pear (Zerbini et al, 2002), plum (Qin and Lu, 2008), etc.) and vegetables (tomato (Cubeddu et al, 2001a), cucumber (Qin and Lu, 2008), onion (Wang and Li, 2013), etc.)…”

Section: Introductionmentioning

confidence: 99%

“…In the studies by two groups, the method of time-resolved spectroscopy (TRS) was mostly used by the research group at CRA-IAA (Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Unità di ricerca per i processi dell'industria agroalimentare) in Italy and the hyperspectral imaging-based spatially resolved (HISR) method was mostly used by the research group in ARS/USDA (Agricultural Research Service, United States Department of Agriculture) at East Lansing, Michigan, USA. Although rare, research about absorption and scattering properties of kiwifruit was carried out by the two groups (Zerbini et al, 2002;Qin and Lu, 2008). There were some reports on optical property measurements of fruits and vegetables based on single integrating sphere: Saeys et al (2008) used single integrating sphere measurements combined with IAD to estimate the optical properties of apple skin and flesh tissue in the 350-2200 nm range for three cultivars.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of absorption and scattering characteristics of kiwifruit tissue using a single integrating sphere system

Fang

2016

J. Zhejiang Univ. Sci. B

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Abstract:For a quantitative understanding of light interaction with fruit tissue, it is critical to obtain two fundamental parameters: the absorption coefficient and the scattering coefficient of the tissue. This study was to investigate the optical properties of kiwifruit tissue at the wavelength of 632.8 nm. The total reflectance and total transmittance of kiwifruit tissue from three parts (including the flesh part, the seed part, and the seed-base part) were measured using a single integrating sphere system. Based on the measured spectral signals, the absorption coefficient μ a and the reduced scattering coefficient μ s ' of kiwifruit tissue were calculated using the inverse adding-doubling (IAD) method. Phantoms made from Intralipid 20% and India ink as well as a Biomimic solid phantom were used for system validation.The mean values of μ a and μ s ' of different parts of the kiwifruit were 0.031-0.308 mm −1 and 0.120-0.946 mm −1 , respectively. The results showed significant differences among the μ a and μ s ' of the three parts of the kiwifruit. The results of this study confirmed the importance of studying the optical properties for a quantitative understanding of light interaction with fruit tissue. Further investigation of fruit optical properties will be extended to a broader spectral region and different kinds of fruits.

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Section: Absorption and Reduced Scattering Coefficients Of Kiwifruit supporting

confidence: 85%

Section: Absorption and Reduced Scattering Coefficients Of Kiwifruit mentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of absorption and scattering characteristics of kiwifruit tissue using a single integrating sphere system

Fang

2016

J. Zhejiang Univ. Sci. B

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Sensors for Non‐Destructive Quality Evaluation of Food

et al. 2021

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Effect of CPPU on bulk optical properties of kiwifruit during storage in near‐infrared range

Liu

Xie

2020

J Sci Food Agric

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BACKGROUND Investigating the effect of N‐(2‐chloro‐4‐pyridyl)‐N′‐phenylurea (CPPU) on the bulk optical properties of postharvest kiwifruit is helpful in understanding the mechanism of identification of CPPU‐treated kiwifruit using spectroscopy and to develop effective optical sensing techniques. In this study, the absorption coefficient μa and reduced scattering coefficient μs′ of flesh and skin of kiwifruit treated with CPPU solutions at CPPU concentration levels (CCLs) of 0, 5, 10 and 15 mg L−1 were measured by using a single integrating sphere setup over the range 950–1650 nm during 12 weeks' storage. RESULTS Generally, at the same storage period, there was no significant difference (P ≤ 0.05) on flesh's μa among the kiwifruit treated with different CCLs at absorption peaks of 970, 1190, and 1390 nm. The average flesh's μs′ of kiwifruit treated with higher CCLs at 1190 nm were larger than those treated with lower CCLs, and there was a significant difference (P ≤ 0.05) between the kiwifruit treated with 0, 5 and 15 mg L−1 CPPU solutions except for week 6. Contrasted with the μa and μs′ of kiwifruit flesh, the μa and μs′ of skin had bigger standard deviations and larger fluctuations with storage time. Additionally, the CPPU‐treated kiwifruit had higher moisture content, lower firmness, and larger cells than CPPU‐untreated kiwifruit. CONCLUSIONS This study indicates that the μs′ of flesh has potential in identifying kiwifruit treated with different CCLs during storage. © 2020 Society of Chemical Industry

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Nondestructive detection of brown heart in pears by time-resolved reflectance spectroscopy

Cited by 66 publications

References 15 publications

Investigation of absorption and scattering characteristics of kiwifruit tissue using a single integrating sphere system

Investigation of absorption and scattering characteristics of kiwifruit tissue using a single integrating sphere system

Sensors for Non‐Destructive Quality Evaluation of Food

Effect of CPPU on bulk optical properties of kiwifruit during storage in near‐infrared range

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