Systems to Characterise Internal Quality of Fruit and Vegetables

Nicolaı̈, Bart; Beullens, Katrien; Bobelyn, Els; Hertog, Maarten; Schenk, Ann; Vermeir, Steven; Lammertyn, Jeroen

doi:10.17660/actahortic.2006.712.4

Cited by 14 publications

(5 citation statements)

References 27 publications

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“…Garcia-Ramos et al (2005) reviewed state-of-the-art non-destructive fruit firmness sensors. Butz et al (2005) and Nicolai et al (2006) compared different technologies to characterize the internal quality (IQ.) of fruits and vegetables.…”

Section: Introductionmentioning

confidence: 99%

Non-destructive technologies for fruit and vegetable size determination – A review

Moreda

Ortiz-Cañavate

García-Ramos

et al. 2009

Journal of Food Engineering

137

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Here, we review different methods for non-destructive horticultural produce size determination, focusing on electronic technologies capable of measuring fruit volume.The usefulness of produce size estimation is justified and a comprehensive classification system of the existing electronic techniques to determine dimensional size is proposed.The different systems identified are compared in terms of their versatility, precision and throughput. There is general agreement in considering that online measurement of axes, perimeter and projected area has now been achieved. Nevertheless, rapid and accurate volume determination of irregular-shaped produce, as needed for density sorting, has only become available in the past few years. An important application of density measurement is soluble solids content (SSC) sorting. If the range of SSC in the batch is narrow and a large number of classes are desired, accurate volume determination becomes important. A good alternative for fruit three-dimensional surface reconstruction, from which volume and surface area can be computed, is the combination of height profiles from a range sensor with a two-dimensional object image boundary from a solid-state camera (brightness image) or from the range sensor itself (intensity image). However, one of the most promising technologies in this field is 3-D multispectral scanning, which combines multispectral data with 3-D surface reconstruction.

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Section: Introductionmentioning

confidence: 99%

Non-destructive technologies for fruit and vegetable size determination – A review

Moreda

Ortiz-Cañavate

García-Ramos

et al. 2009

Journal of Food Engineering

137

View full text Add to dashboard Cite

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“…Moreover, according to Harker et al (1996), in the reference method used to determine the firmness by a penetrometer, the readings may vary according to the evaluator; in other words, the evaluator may influence the measurements performed by the equipment. Nicolai et al (2006) suggests the use of non-destructive methods of impact or vibration to determine this trait.…”

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confidence: 99%

Pear quality characteristics by Vis / NIR spectroscopy

Machado

Fachinello

Galarça

et al. 2012

An. Acad. Bras. Ciênc.

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Recently, non-destructive techniques such as the Vis / NIR spectroscopy have been used to evaluate the characteristics of maturation and quality of pears. The study aims to validate the readings by the Vis / NIR spectroscopy as a non-destructive way to assess the qualitative characteristics of pear cultivars 'Williams', 'Packams' and 'Carrick', produced according to Brazilian conditions. The experiment was conducted at the Pelotas Federal University, UFPel, in Pelotas / RS, and the instrument used to measure the fruit quality in a non-destructive way was the NIR-Case spectrophotometer (SACMI, Imola, Italy). To determine pears´ soluble solids (SS) and pulp firmness (PF), it was established calibration equations for each variety studied, done from the evaluations obtained by a non-destructive method (NIR-Case) and a destructive method. Further on, it was tested the performance of these readings by linear regressions. The results were significant for the soluble solids parameter obtained by the Vis / NIR spectroscopy; however, it did not achieve satisfactory results for the pear pulp firmness of these cultivars. It is concluded that the Vis / NIR spectroscopy, using linear regression, allows providing reliable estimates of pears´ quality levels, especially for soluble solids.

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“…Mechanical techniques have been developed to nondestructively measure some quality parameters of fruit and vegetables, mainly for firmness estimation, providing an alternative to the destructive Magness-Taylor penetrometry (García-Ramos et al, 2005;Nicolaï et al, 2006). Major mechanical techniques include the measurement of variables extracted from quasi-static force-deformation curves, the analysis of impact forces, and the measurement of acoustic responses to vibrations and impacts.…”

Section: Mechanical Methods For Firmness Measurementmentioning

confidence: 99%

Sensors for product characterization and quality of specialty crops—A review

Ruiz-Altisent

Ruiz-García

Moreda

et al. 2010

Computers and Electronics in Agriculture

187

112

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a b s t r a c tThis review covers developments in non-invasive techniques for quality analysis and inspection of specialty crops, mainly fresh fruits and vegetables, over the past decade up to the year 2010. Presented and discussed in this review are advanced sensing technologies including computer vision, spectroscopy, X-rays, magnetic resonance, mechanical contact, chemical sensing, wireless sensor networks and radiofrequency identification sensors. The current status of different sensing systems is described in the context of commercial application. The review also discusses future research needs and potentials of these sensing technologies. Emphases are placed on those technologies that have been proven effective or have shown great potential for agro-food applications. Despite significant progress in the development of non-invasive techniques for quality assessment of fruits and vegetables, the pace for adoption of these technologies by the specialty crop industry has been slow.

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Systems to Characterise Internal Quality of Fruit and Vegetables

Cited by 14 publications

References 27 publications

Non-destructive technologies for fruit and vegetable size determination – A review

Non-destructive technologies for fruit and vegetable size determination – A review

Pear quality characteristics by Vis / NIR spectroscopy

Sensors for product characterization and quality of specialty crops—A review

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