Carbohydrate content during cold and room temperature storage of carrot and Cenourete® cultivars

D.V. Chaves, F.L Zanatta, J. Karsten, F.L. Finger
The composition of soluble sugars is dependent on the developmental stage and by biotic and abiotic factors affecting the plant physiology, as well as the changes during storage. The objective was to characterize the content of soluble carbohydrates in three cultivars of processed and whole carrots treated with ethylene and stored at two temperatures. The cultivars ‘Alvorada’, ‘Brasília’ and ‘Esplanada’ were harvested and stored as whole carrots and processed as baby carrots type Cenourete®. A half of the treatments received exogenous ethylene (10 ppm for 24 h) and the other half as control. Afterwards, carrots were conditioned in plastic bags and stored at 8 and 25°C for 6 days. Samples were taken at every three days for analyses of the total soluble sugars, starch, reducing sugars and non-reducing. There was an increase in total soluble sugar content in the three cultivars and for all treatments, and less pronounced in the cultivar ‘Esplanada’. With the exception of the cultivar ‘Alvorada’, the whole carrots and baby carrots of the other cultivars had slight increase in starch values during storage. Reducing sugars contents increased over the days, while non-reducing sugars values increased until day 3, respectively, regardless the cultivar or treatments applied. The soluble carbohydrates content has slight variation among the cultivars processed or unprocessed, with the presence or not of ethylene and storage temperature.
Chaves, D.V., Zanatta, F.L, Karsten, J. and Finger, F.L. (2020). Carbohydrate content during cold and room temperature storage of carrot and Cenourete® cultivars. Acta Hortic. 1292, 157-164
DOI: 10.17660/ActaHortic.2020.1292.21
https://doi.org/10.17660/ActaHortic.2020.1292.21
Daucus carota, minimally processed, total soluble sugars, starch, reducing sugars and non-reducing
English

Acta Horticulturae