A novel combined approach for peel and pulp color classification in guava (Psidium guajava L.)
6 affiliations
- 1Division of Fruit Crops, ICAR-Indian Institute of Horticultural Research
- 2Division of Postharvest Technology and Agricultural Engineering, ICAR-Indian Institute of Horticultural Research
- 3Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research
- 4Division of Flower and Medicinal Crops, ICAR-Indian Institute of Horticultural Research
- 5Republic of Türkiye, Ministry of Agriculture and Forestry, General Directorate of Agricultural Research and Policies, Hatay Olive Research Institute Directorate
- 6Department of Horticultural Sciences, Faculty of Agriculture and Natural Resources, Arak University
Abstract
Guava (Psidium guajava L.) fruit color varies extensively due to the presence of pigments such as anthocyanins and carotenoids. The development of a standardized color classification system and a quantitative assessment of the peel and pulp color could aid in efficient grading and classification of the guava progenies and genetic resources. Thus, the intervarietal progenies derived from the cross Purple local × Arka Poorna were used for classification based on peel and pulp pigments and also for correlation study with International Commission on Illumination (CIELAB) color values (L*, a*, b*, C*, and h°). The results revealed that the integrated method of CIELAB and Munsell color system categorized 167 intervarietal progenies of guava into four and seven groups for peel and pulp color, respectively. Additionally, strong positive correlations were observed between a* and the total anthocyanins (r = 0.522), total carotenoids (r = 0.608), and lycopene (r = 0.586) pigments. The color value C* also recorded a positive correlation with the pigments. The linear equation derived from the significant correlation of a* and pigments indicated that the a* values may be more helpful as an indirect indicator of the pigment levels in guava pulp. The combined method of color classification and pigment estimation through correlation study provided a quicker and less costly way to simplify the color classification system and pigment estimation. Thus, this approach could be used in breeding program to define color and helps in developing a color-based grading system which is required in the food industry.
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BibTeX
@article{megha2026novel,
title = {{A novel combined approach for peel and pulp color classification in guava (Psidium guajava L.)}},
author = {M. Megha and C. Vasugi and D. V. Sudhakar Rao and K. V. Ravishankar and K. S. Shivashankara and K. HimaBindu and C. Kanupriya and Yazgan Tunç and Ali Khadivi},
journal = {Scientific Reports},
year = {2026},
month = jul,
doi = {10.1038/s41598-026-63012-1},
url = {https://doi.org/10.1038/s41598-026-63012-1},
note = {CC BY},
}
RIS
TY - JOUR
TI - A novel combined approach for peel and pulp color classification in guava (Psidium guajava L.)
AU - M. Megha
AU - C. Vasugi
AU - D. V. Sudhakar Rao
AU - K. V. Ravishankar
AU - K. S. Shivashankara
AU - K. HimaBindu
AU - C. Kanupriya
AU - Yazgan Tunç
AU - Ali Khadivi
PY - 2026
DA - 2026/07/01
JO - Scientific Reports
DO - 10.1038/s41598-026-63012-1
UR - https://doi.org/10.1038/s41598-026-63012-1
AB - Guava (Psidium guajava L.) fruit color varies extensively due to the presence of pigments such as anthocyanins and carotenoids. The development of a standardized color classification system and a quantitative assessment of the peel and pulp color could aid in efficient grading and classification of the guava progenies and genetic resources. Thus, the intervarietal progenies derived from the cross Purple local × Arka Poorna were used for classification based on peel and pulp pigments and also for correlation study with International Commission on Illumination (CIELAB) color values (L*, a*, b*, C*, and h°). The results revealed that the integrated method of CIELAB and Munsell color system categorized 167 intervarietal progenies of guava into four and seven groups for peel and pulp color, respectively. Additionally, strong positive correlations were observed between a* and the total anthocyanins (r = 0.522), total carotenoids (r = 0.608), and lycopene (r = 0.586) pigments. The color value C* also recorded a positive correlation with the pigments. The linear equation derived from the significant correlation of a* and pigments indicated that the a* values may be more helpful as an indirect indicator of the pigment levels in guava pulp. The combined method of color classification and pigment estimation through correlation study provided a quicker and less costly way to simplify the color classification system and pigment estimation. Thus, this approach could be used in breeding program to define color and helps in developing a color-based grading system which is required in the food industry.
SN - 2045-2322
ER -