Nutritional and functional profiling of pseudostem and inflorescence of indigenous wild Musa species in Nagaland: A prospect for functional food development
摘要
This study profiles the nutritional and functional potential of the edible pseudostem and inflorescence from five indigenous wild Musa species (M. aurantiaca, M. balbisiana, M. flaviflora, M. itinerans, and M. markkuana) in Nagaland, India. Utilizing n = 3 independent biological replicates per tissue per species, we quantified proximate composition, sugars, total phenolic content (TPC), total flavonoid content (TFC), and DPPH radical scavenging activity strictly on a dry weight (DW) basis. Broad part-wise comparisons revealed distinct compositional variations (p < 0.05). Pseudostem samples contained significantly higher average moisture, crude fibre, and total carbohydrates than inflorescences. Specifically, Musa itinerans pseudostem recorded the highest crude fibre (34.05%) and DPPH activity (46.08% inhibition), while Musa aurantiaca pseudostem contained the maximum carbohydrate (36.67 g/100 g DW). Macro-level tissue comparisons for TPC and TFC did not achieve formal statistical significance (p > 0.05) due to high intra-group genetic variability among wild specimens. However, a notable biological trend with a moderate effect size was identified for TFC, where the pseudostem exhibited a higher mean concentration (1.31 g QE/100 g DW) than the inflorescence (0.95 g QE/100 g DW). Pearson correlation analysis revealed a strong positive relationship between moisture and DPPH activity (r = 0.693), alongside a positive correlation with crude fibre (r = 0.514), underscoring the functional contribution of cell-wall-bound phenolics. This research establishes the wild Musa pseudostem as a superior, fiber- and carbohydrate-rich bioresource with notable antioxidant capacity, validating traditional tribal consumption and positioning these wild specimens as viable candidates for functional food development.