THE ACCUMULATION OF CHEMICAL COMPOUNDS IN STORAGE ROOTS BY CARROTS OF DIFFERENT CULTIVARS DURING VEGETATION PERIOD
Marek Gajewski
Warsaw University of Life Sciences – SGGWPaweł Szymczak
Warsaw University of Life Sciences – SGGWMarta Bajer
Warsaw University of Life Sciences – SGGWAbstract
In 2006–2008 the field experiment was carried out in Warsaw University of Life Sciences to determine the differences in accumulation of some chemical compounds in the storage roots of carrot cultivars of various colour and shape of the root. Carrot cvs.: ‘Perfekcja’, ‘Interceptor’, ‘Vita Longa’, ‘Nebula’, ‘Purple Haze’, 'Deep Purple', ‘Mello Yello’ and 'White Satin' were the objects of the experiment. In intervals of three weeks dry matter, total sugars, total carotenoid and nitrates(V) contents were determined in the roots. Also a relationship between the increase of storage root mass during the plants growth and changes in the content of chemical compounds was investigated. Results showed a significant differentiation between the cultivars in respect of chemical composition of storage roots as well as substantial changes of the composition during the plants growth. The highest sugars, soluble solids and carotenoid contents at the end of vegetation
period were found in storage roots of purple-orange coloured cultivar 'Purple Haze'. Strong relationship (determination coefficient R2 above 80%) between dry matter, sugars and soluble solids accumulation in the storage roots and storage roots mass increase was
established. The relationship for carotenoid and nitrates accumulation was much weaker (below 50%). The relationship between dry matter of the roots and sugars or soluble solids accumulation was also strong.
Keywords:
carrot, cultivars, vegetation period, dry matter, sugars, nitrates, carotenoid compoundsReferences
Anonymous, 2003. Najwyższe dopuszczalne poziomy zanieczyszczeń azotanami i azotynami żywności i składników żywności. Dz. U. 37, 326. [In Polish].
Anonymous, 2004. Carrots, raw. USDA Nutritional Database for Standard Reference. Release 17. http//www.nal.usda.gov.
Banga O., 1984. Carrot. In: Simmonds N.W. (Ed.). Evolution of crop plants. 3th. ed. Longman, London, 291–293.
Brunsgaard G., Kidmose U., Sorensen L., Kaack K., Eggum B.O., 1994. The influence of variety and growth conditions on the nutritive value of carrots. J. Sci. Food Agric. 65 (2), 163–170.
Cserni I., Prohaszka K., 1988. The effect of N supply on nitrate, sugar and carotene content of carrots. Acta Hortic. 220, 303–307.
Daie J., 1984. Characterization of sugar transport in storage tissue of carrot. J. Am. Soc. Hort. Sci. 109, 718–722.
Drlik J., Rogl J., 1992. The effect of graduated rates of nitrogen fertilizer on yield and nitrate accumulation in carrots. Zahradnictwi 19, 39–46.
Gajewski M., Dąbrowska A., 2007. Quality characteristics of carrot cultivars depending to longterm storage. In: P. Nowaczyk (ed.): Spontaneous and Induced Variation for the Genetic Improvement of Horticultural Products. Univ. Press, Univ. of Technol. and Life Sci. in Bydgoszcz, 95–103.
Gajewski M., Węglarz Z., Sereda A., Bajer M., Kuczkowska A., Majewski M., 2009. Quality of carrot grown for processing as affected by nitrogen fertilization and harvest term. Veget. Crops Res. Bull. 70, 135–144.
Gutezeit B., 1999. Yield and nitrate content of carrots (Daucus carota L.) as affected by nitrogen supply. Acta Hortic. 506, 87–91.
Gutezeit B., Fink M., 1999. Effect of cultivar and harvest date on nitrate content of carrot roots. J. Hortic. Sci. Biotechnol. 74 (3), 297–300.
Kona J., 2006. Nitrate accumulation in different parts of carrot root during vegetation period. Acta Hortic. et Regiotecturae 9, 22–24.
Lee C., 1986. Changes in carotenoid content of carrots during growth and post-harvest storage. Food Chem. 20 (4), 285–293.
Mazza G., 1989. Carrots. [In:] Eskin N.A. (ed.). Quality and Preservation of Vegetables. CRC Press, Boca Raton, 75–119.
Mazur Z., 1992. Effect of nitrogen fertilization on the level of nitrate and nitrite contents in vegetables. Biul. Warzywn. XXXVIII, 123–139.
Nilsson T., 1987. Growth and chemical composition of carrots as influenced by the time of harvest. J. Agric. Sci. 108, 459–468.
PN-90/A-75101.12, 1990. Determination of carotenoids and ß-carotene content. Fruit and vegetable products. PKNMiJ. Warszawa [In Polish].
Rosenfeld H.J., 1998. Maturity and development of the carrot root (Daucus carota L.). Gartenbauwissenschaft 63, 87–94.
Rubatzky V.E., Quiros C.F., Simon P.W., 1999. Carrots and Related Vegetable Umbelliferae. CABI Publishing, 22–30.
Santamaria P., 2005. Nitrate in vegetables: toxicity, content, intake and EC regulation. J. Sci. Food Agric., 86 (1), 10–17.
Seljasen R., Bengtsson G., Hoftun H., Vogt G., 2001. Sensory and chemical changes in five varieties of carrot in response to mechanical stress and postharvest. J. Sci. Food Agric. 81, 436–447.
Simon P.W., Wolff Y., 1987. Carotenes in typical and dark orange carrots. J. Agric. Food Chem. 35, 1017–1022.
Skrede G., Nilsson A., Baardseth P., Rosenfeld H.J., Enersen G., Slinde E., 1997. Evaluation of carrot varieties for production of deep fried carrot chips. Food Res. Internat. 30, 73–81.
Suojala T., 2000. Variation in sugar content and composition of carrot storage roots at harvest and during storage. Sci. Hort. 8, 1–19.
Warman P.R., Havard K.A., 1997. Yield, vitamin and mineral contents of organically and convencionally grown carrots and cabbage. Agric. Ecosystems Envir. 61, 155–162.
Warsaw University of Life Sciences – SGGW
Warsaw University of Life Sciences – SGGW
Warsaw University of Life Sciences – SGGW
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