Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditions
Devices which are used to determine firmness of non-destructive nature do not penetrate the skin or damage the underlying flesh of the fruit and do provide real-time results, avoid raw biomass loss and allow the testing of every individual fruit and repeated testing of the same fruit, thus providing...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2022-08-01
|
| Series: | Folia Horticulturae |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/fhort-2022-0011 |
| _version_ | 1811159393334460416 |
|---|---|
| author | Uarrota Virgilio Gavicho Pedreschi Romina |
| author_facet | Uarrota Virgilio Gavicho Pedreschi Romina |
| author_sort | Uarrota Virgilio Gavicho |
| collection | DOAJ |
| description | Devices which are used to determine firmness of non-destructive nature do not penetrate the skin or damage the underlying flesh of the fruit and do provide real-time results, avoid raw biomass loss and allow the testing of every individual fruit and repeated testing of the same fruit, thus providing many advantages for researchers and the industry alike. Contrarily, destructive methods puncture the fruit and thus only a subsample, selected to represent all fruit, can be tested. In addition, different operators can generate quite different values for the same fruit using a hand-held penetrometer. Hass avocado from two commercial orchards was collected, and fruit firmness was measured at harvest, during two storage conditions controlled atmosphere (CA) and regular air (RA), during shelf-life and at the ready-to-eat stage using both destructive (Fruit Pressure Tester, mod. FT327, Wagner Instruments, Greenwich, USA) and non-destructive devices (Model TA.XT plusC, Stable Micro Systems Ltd, England). Then, the mathematical relationship between these two devices was assessed using Spearman Correlation coefficient (rho) and p-values adjusted by Benjamini-Hochberg and Bonferroni procedures. Thus, 3,200 fruits were evaluated during two harvests and two subsequent seasons. A moderate and positive association between destructive and non-destructive devices was found (rho coefficient ranging from 0.41 to 0.51). The variance explained by the regression models ranged from 0.53 to 0.63; all of them were significant with good accuracies (i.e., 0.79; 0.78; 0.73; 0.76). The results prompt us to conclude that a non-destructive texture analyser device can be used to accurately predict firmness measured by a penetrometer in Hass avocado fruit and contribute to avoiding fruit discards. |
| first_indexed | 2024-04-10T05:40:17Z |
| format | Article |
| id | doaj.art-b786ae31d0914e22a087b6ce92c2f5a3 |
| institution | Directory Open Access Journal |
| issn | 2083-5965 |
| language | English |
| last_indexed | 2024-04-10T05:40:17Z |
| publishDate | 2022-08-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Folia Horticulturae |
| spelling | doaj.art-b786ae31d0914e22a087b6ce92c2f5a32023-03-06T10:29:55ZengSciendoFolia Horticulturae2083-59652022-08-0134213915010.2478/fhort-2022-0011Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditionsUarrota Virgilio Gavicho0Pedreschi Romina1Pontificia Universidad Catolica de Valparaiso, Escuela de Agronomia, Department of Postharvest and Industrialization, Calle San Francisco S/N, La Palma, Quillota, ChilePontificia Universidad Catolica de Valparaiso, Escuela de Agronomia, Department of Postharvest and Industrialization, Calle San Francisco S/N, La Palma, Quillota, ChileDevices which are used to determine firmness of non-destructive nature do not penetrate the skin or damage the underlying flesh of the fruit and do provide real-time results, avoid raw biomass loss and allow the testing of every individual fruit and repeated testing of the same fruit, thus providing many advantages for researchers and the industry alike. Contrarily, destructive methods puncture the fruit and thus only a subsample, selected to represent all fruit, can be tested. In addition, different operators can generate quite different values for the same fruit using a hand-held penetrometer. Hass avocado from two commercial orchards was collected, and fruit firmness was measured at harvest, during two storage conditions controlled atmosphere (CA) and regular air (RA), during shelf-life and at the ready-to-eat stage using both destructive (Fruit Pressure Tester, mod. FT327, Wagner Instruments, Greenwich, USA) and non-destructive devices (Model TA.XT plusC, Stable Micro Systems Ltd, England). Then, the mathematical relationship between these two devices was assessed using Spearman Correlation coefficient (rho) and p-values adjusted by Benjamini-Hochberg and Bonferroni procedures. Thus, 3,200 fruits were evaluated during two harvests and two subsequent seasons. A moderate and positive association between destructive and non-destructive devices was found (rho coefficient ranging from 0.41 to 0.51). The variance explained by the regression models ranged from 0.53 to 0.63; all of them were significant with good accuracies (i.e., 0.79; 0.78; 0.73; 0.76). The results prompt us to conclude that a non-destructive texture analyser device can be used to accurately predict firmness measured by a penetrometer in Hass avocado fruit and contribute to avoiding fruit discards.https://doi.org/10.2478/fhort-2022-0011destructive fruit firmnessmathematical modellingnon-destructive devicepersea americanarelationships |
| spellingShingle | Uarrota Virgilio Gavicho Pedreschi Romina Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditions Folia Horticulturae destructive fruit firmness mathematical modelling non-destructive device persea americana relationships |
| title | Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditions |
| title_full | Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditions |
| title_fullStr | Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditions |
| title_full_unstemmed | Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditions |
| title_short | Mathematical modelling of Hass avocado firmness by using destructive and non-destructive devices at different maturity stages and under two storage conditions |
| title_sort | mathematical modelling of hass avocado firmness by using destructive and non destructive devices at different maturity stages and under two storage conditions |
| topic | destructive fruit firmness mathematical modelling non-destructive device persea americana relationships |
| url | https://doi.org/10.2478/fhort-2022-0011 |
| work_keys_str_mv | AT uarrotavirgiliogavicho mathematicalmodellingofhassavocadofirmnessbyusingdestructiveandnondestructivedevicesatdifferentmaturitystagesandundertwostorageconditions AT pedreschiromina mathematicalmodellingofhassavocadofirmnessbyusingdestructiveandnondestructivedevicesatdifferentmaturitystagesandundertwostorageconditions |