Skirtingo genotipo bulvių gumbų kokybės rodiklių kitimas laikymo metu

Abstract

Object of the work: three potato cultivars 'Blue Congo', 'Blue Danube', 'Vitellote'. Aim of the research: investigate different genotype for potatoes tubers quality indicators of changes during storage. Objectives: To value periodically of chemical composition changes for considered eatable potatoes tubers. To set the potatoes tubers mass loss during storage. Methods and conditions: research was done 2012 October – 2013 April at Aleksandras Stulginskis University in food materials, agricultural and zootechnical research and institute of agricultural and food science laboratories. Potatoes tubers were stored in 5,5 (± 0,5oC) oC temperature for 7 months, relative humidity of the room – 90 % (± 5%). Potassium and vitamin C amount was set by standard methods, rated potatoes tubers germination, natural and general mass loss. Averages for research data and standard deviations were calculated by using “Microsoft Excel”. The results of work: the main amount of potassium was found in 'Vitelotte' breed potatoes tubers and the least amount – 'Blue Congo'. Potassium amount of all researched potatoes tubers during storage increased. Reliable the highest amount of vitamin C was set in 'Vitelotte' breed potatoes tubers. The vitamin C amount for all breed of potatoes tubers from October till February increased while all other time respectively decreased. Reliable the highest general mass loss formed in 'Vitelotte' breed potatoes tubers (23,3 ± 0,52 %) or the smallest – 'Blue Danube' – 7,88 ± 0,74 %.