Steaming the fresh tubers caused degradation of beta carotene due to oxidation and/or trans-cis-isomerization of beta carotene [35]. This resulted in changing the bright orange colour to dull/brownish orange colour that was showed by lower L*, a* and b* values (Table 3) relative to those of fresh tubers (Table 2). Wu et al. [35] noted that steaming the fresh tubers from 10 to 50 min may lead to 50% reduction in the beta carotene content. Meanwhile, moisture content of the steamed tubres was consistently high and similar to that of fresh tubers (Table 2 and 3), reflecting moist and tender texture of the steamed tubers. The hardness level of steamed tubers was 7.19 N (Table 3), which was in the range of hardness values of 12 orange-fleshed cultivars that varied from soft/tender to firm [36]. Similarly, the values of adhesiveness, cohesiveness, springiness and chewiness (Table 3) were within the variation of those 12 cultivars that ranging from 0.0-0.96; 0.11-0.48; 69.95-94.26; 33.0-127.0, respectively [36], suggesting similar texture profile of Beta 1 variety with most orange fleshed sweet potato cultivars.