Evaluation of Markers Associated with Physiological and Biochemical Traits during Storage of ‘Nam Dok Mai Si Thong’ Mango Fruits

Tibet Tangpao, Nutthatida Phuangsaujai, Sila Kittiwachana, David R. George, Patcharin Krutmuang, Bajaree Chuttong () and Sarana Rose Sommano ()
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Tibet Tangpao: Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Nutthatida Phuangsaujai: Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
Sila Kittiwachana: Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
David R. George: School of Natural and Environmental Sciences, Newcastle University, Agriculture Building, Newcastle upon Tyne NE1 7RU, UK
Patcharin Krutmuang: Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Bajaree Chuttong: Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Sarana Rose Sommano: Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand

Agriculture, 2022, vol. 12, issue 9, 1-19

Abstract: Mango ‘Nam dok mai si thong’ is in high demand worldwide, displaying desirable attributes which include a particularly sweet flavour and visually appealing appearance. Physiological and biochemical changes that occur in the fruit post-harvest are key factors in determining fruit quality and, consequently, predicted shelf life. In order to understand which post-harvest markers play crucial roles during the ripening process, as well as those which are a consequence of disease infection and physical damage caused by essential oil vapour, partial least squares (PLS) correlation models were used. During storage, physiochemical (percent weight loss, peel colour, firmness, pH, and peel electrolyte leakage) and biochemical (titratable acidity, total soluble solids, total phenolic compounds, total flavonoid compounds, antioxidants, total sugar, and reducing sugar content) parameters, as well as near-infrared (NIR) spectra, were monitored and correlated with visual post-harvest physiological responses. The majority of analysed markers displayed distinct relationships with the ripening process of mangoes, where for non-destructive parameters (R 2 = 0.86), lightness (L*) and b* value were notably significant, and for destructive parameters (R 2 = 0.79), pH and total soluble solids were notably significant. Similarly, the same markers were also correlated with physical damage and post-harvest mango disease infection severity, possibly through polysaccharide deformation and activation of browning-related enzymes. NIR imaging results also revealed the absorbent regions involved in biochemical alterations (water and enzymes; absorbance at 1170 nm, 1400–1500 nm, and 2150–2250 nm) that pertain to the fruit’s quality. The findings from this work provide an initial step towards the development and assessment of quality measures for ‘Nam dok mai si thong’ mango.

Keywords: Mangifera indica ‘Nam dok mai si thong’; mango qualities; quality indicator; partial least squares (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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