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Mathematical model for detecting tomato ripeness using chlorophyll fluorescence

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dc.contributor.authorAbdelhamid, M.A.
dc.contributor.authorRawdhan, S.A.
dc.contributor.authorShalaby, S.S.
dc.contributor.authorAtia, M.F.
dc.date.accessioned2024-02-04T09:53:10Z
dc.date.available2024-02-04T09:53:10Z
dc.date.issued2024
dc.descriptionReceived: October 25th, 2023 ; Accepted: December 12th, 2023 ; Published: January 18th, 2024 ; Correspondence: mahmoudabdelhamid@agr.asu.edu.egeng
dc.description.abstractA precise assessment of tomato ripeness is crucial in the harvesting and marketing procedures. Chlorophyll fluorescence is being relied on as a harmless approach for tracking the maturity of tomatoes in postharvest research. In this study, mathematical model is proposed based on measuring the intensity of fast chlorophyll fluorescence of tomatoes depending on their degree of maturity. In the experimental study, four stages of tomato ripening (green, turning, pink, and red) for three varieties (‘Alkazar’, 'Lezginka’, and ‘Rosanchik’) were used. The Fluorescence Intensity (FI) data over time were represented using a third-degree polynomial function and finding its first derivative curve. The FI parameter was obtained as the fluorescence level at the first inflection point on the fluorescence induction curve (at time tI on the first derivative curve). According to the obtained mathematical models, the optimal time for monitoring the degree of ripeness of tomatoes was tI = 129 ± 4 ms. According to the results of experimental studies, there is a general trend, regardless of the variety used, that the FI decreases with tomato maturity. The FI may assist in sorting and grading processes for fresh vegetables and fruits. It can also be used as a system that can be integrated into harvest and post-harvest machinery for agricultural products.eng
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2024, vol. 22, no. 1, pp. 5–15eng
dc.identifier.urihttp://hdl.handle.net/10492/8836
dc.identifier.urihttps://doi.org/10.15159/ar.24.003
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjecttomatoeng
dc.subjectmodeleng
dc.subjectmaturity stageeng
dc.subjectfast chlorophyll fluorescenceeng
dc.subjectarticleseng
dc.titleMathematical model for detecting tomato ripeness using chlorophyll fluorescenceeng
dc.typeinfo:eu-repo/semantics/articleeng

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2024, Vol. 22, No. 1