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<p>The quality of papaya fruits is determined by their physical, chemical and visual attributes. Alternative methods, such as digital image analysis, allow the efficient and cost-effective evaluation of these characteristics. The objectives of this study were: (i) to perform physical and chemical analyses of the fruits; and (ii) to use colorimetric analysis of digital images to characterize the pulp color of papaya accessions. A total of 110 hermaphroditic accessions from the Solo and Formosa/Intermediate groups of the Embrapa Mandioca e Fruticultura Germplasm Bank were evaluated at 16&#xa0;months after planting. Each accession was represented by five fruits harvested at ripening stage two and evaluated at stage five. The physical and chemical variables included: fruit mass (FM), length (FL), diameter (FD), FL/FD ratio (LDR), internal cavity diameter (ICD), pulp thickness (PT), fruit firmness (F), soluble solids content (SS), titratable acidity (TA), pH, and SS/TA ratio. Colorimetric analysis was performed using digital images and the colordistance package in the R software. Physical, chemical, and color data were subjected to multivariate analysis. Accessions from the Formosa group presented higher mean values for FM (976.37&#xa0;g), FL (20.76&#xa0;cm), and FD (9.63&#xa0;cm), while the Solo group produced higher SS and SS/TA ratio values. Colorimetric analysis revealed wide variation in pulp color, identifying five groups, with emphasis on G1 (yellow pulp) and G2 (reddish pulp).</p>

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Characterization of fruits and colorimetric analysis of pulp using digital imaging of papaya (Carica papaya L.) germplasm

  • 期刊论文

  • 发表日期：

    2025年10月8日

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  • Daiane Sampaio Santana,
  • Onildo Nunes de Jesus,
  • Francisco José da Silva Fiuza Junior,
  • Hellen Cristina da Paixão Moura,
  • Franklin Damasceno Carvalho,
  • Diego Fernando Marmolejo Cortes

摘要

The quality of papaya fruits is determined by their physical, chemical and visual attributes. Alternative methods, such as digital image analysis, allow the efficient and cost-effective evaluation of these characteristics. The objectives of this study were: (i) to perform physical and chemical analyses of the fruits; and (ii) to use colorimetric analysis of digital images to characterize the pulp color of papaya accessions. A total of 110 hermaphroditic accessions from the Solo and Formosa/Intermediate groups of the Embrapa Mandioca e Fruticultura Germplasm Bank were evaluated at 16 months after planting. Each accession was represented by five fruits harvested at ripening stage two and evaluated at stage five. The physical and chemical variables included: fruit mass (FM), length (FL), diameter (FD), FL/FD ratio (LDR), internal cavity diameter (ICD), pulp thickness (PT), fruit firmness (F), soluble solids content (SS), titratable acidity (TA), pH, and SS/TA ratio. Colorimetric analysis was performed using digital images and the colordistance package in the R software. Physical, chemical, and color data were subjected to multivariate analysis. Accessions from the Formosa group presented higher mean values for FM (976.37 g), FL (20.76 cm), and FD (9.63 cm), while the Solo group produced higher SS and SS/TA ratio values. Colorimetric analysis revealed wide variation in pulp color, identifying five groups, with emphasis on G1 (yellow pulp) and G2 (reddish pulp).