East African highland cooking banana: towards an efficient selection of hybrids with user‐preferred food quality traits

Abstract

BackgroundDeterminants of culinary qualities of East African highland cooking bananas (EAHCB) are not well known. This constrains the inclusion of user‐preferred traits in breeding. The aim of this research was to quantify key indicators of user‐preferred characteristics to enable selection of acceptable hybrids.ResultsQualitative characteristics that drive preference were big bunches (15‐34 Kg), long straight/slightly curved fingers (12–23 cm), yellowness and soft texture. Descriptive sensory analysis of the intensity of colour and texture the 23 genotypes revealed that landraces Kibuzi, Mbwazirume, Nakitembe and Mpologoma had higher intensity of yellowness and lower intensity of hardness (softer) and a low score (≤ 1.0 ) of astringency taste. A preference test showed that they had higher acceptability scores. Biochemical, instrumental, and sensory data revealed correlations between sensory firmness and instrumental hardness (r=0.5), sensory firmness and amylopectin (r=‐0.54), suggesting that qualitative descriptions can be predicted by instrumental and biochemical indicators. Significant (p<0.05) variations in amylose and total starch content were observed in different varieties. Moderate correlations between instrumental hardness and firmness in mouth (r=0.55), cohesiveness and firmness in the mouth (r=0.57), adhesiveness and firmness in the mouth (r=0.64) were observed. Surprisingly, carotenoids content was not correlated with yellowness in cooked matooke. However, positive correlations were observed between chroma (b*) parameters of raw matooke and sensorial assessed color on cooked samples.ConclusionsQualitative characteristis; the bunch, pulp colour and texture; that drive users‐preference in the EAHCB were quantified, paving way for breeders to use them to select genotypes with these attributes early in the breeding process.This article is protected by copyright. All rights reserved.