Assessment of Himalayan plain mango genotypes for phytochemicals, biochemical-nutraceutical characterisation and quality change during storage life

Twenty promising mango genotypes were estimated for physical, physiological, phytochemical, quality attributes, mineral content, sensory evaluation and fruit softening enzymes activites during ambient storage (25 +/- 4 degrees C and 65 +/- 5% Relative Humidity) at 3 days interval till end of the storage period (12th day). Significant variations for the studied attribute were observed. Among physical attributes, the maximum fruit weight was observed in 'Fazli' (404.67 g), dry seed weight in 'Fazli' (27.23 g) and 'Chausa' (25.70 g) and fruit firmness in 'Mahmood Bahar' (8.88 N). The higher level of total soluble solids was registered in 'Amrapali' (21.76 degrees Brix) and 'Mallika' (21.48 degrees Brix), while antioxidant activity in 'Malda' (4.12 mu mol TE g(-1)) and 'Mallika' (4.02 mu mol TE g(-1)) and total phenolic content in 'Malda' (512.48 mu g GAE g(-1) FW), 'Ratna' (509.74 mu g GAE g(-1) FW) and 'Safed Malda' (510.42 mu g GAE g(-1) FW). 'Amrapali' (7.38 mg/100 g) exhibited the highest total carotenoid concentration. Genotypes such as 'Malda', 'Amrapali', 'Langra', 'Krishna Bhog', 'Alphonso' and 'Prabha Shankar' exhibited 3-4 days higher shelf life compared to other genotypes. Furthermore, the correlation and principal component analysis provided insights into the relationships between various postharvest attributes during ripening. Mango genotypes which displayed high phytochemical-nutraceutical value can be utilised in quality improvement programs and bear practical utility with respect to processing industries and consumer health.