Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(2), 387-393 | DOI: 10.11118/actaun201664020387

Dynamics of Selected Bioactive Substances Changes in Cucurbita Moschata Duch. Ex Poir. After Storage and Different Methods of Technological Processing

Alena Andrejiová, Alžbeta Hegedűsová, Miroslav Šlosár, Silvia Barátová
Department of Vegetable Production, Horticulture and Landscape Engineering Faculty, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic

The winter squash is an important source of antioxidants, especially carotenoids. The aim of submitted research work was to determine the effect of genotype, storage and different methods of technological processing (baking, boiling and sterilization) on the content of ascorbic acid and total carotenoids in fruits of winter squash (Cucurbita moschata Duch. ex Poir.). The small-plot field experiment was established at Slovak University of Agriculture in Nitra in 2013. Five cultivars of winter squash ('Liscia', 'Orange', 'Hannah', 'UG 205 F1' and 'Waltham') were examined in experiment. The total carotenoids content in the pulp of fresh fruits was ranged from 9.33 to 15.10 mg.100 g-1. Its highest value was determined in case of 'Orange' variety. The storage and the thermal treatment of fruit pulp in case of baking had positive impact from the total carotenoid content point of view. The baking resulted in the increase of its value in winter squash. On the contrary, sterilization tended to the decrease of total carotenoid content in edible part of squash. The total carotenoids content in the baking pulp was ranged from 14.27 to 31.87 mg.100 g-1. The vitamin C content before storage and technological processing ranged in interval from 13.88 to 18.69 mg.100 g-1. Particular thermal methods of processing and storage resulted in decrease of vitamin C content in the pulp of all winter squash varieties.

Keywords: Cucurbita moschata, winter squash, cultivar, total carotenoids, ascorbic acid, technological processing, storage
Grants and funding:

The work was supported by projects KEGA [038SPU-4/2014] and VEGA [1/0105/14].

Prepublished online: May 4, 2016; Published: May 1, 2016  Show citation

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Andrejiová, A., Hegedűsová, A., Šlosár, M., & Barátová, S. (2016). Dynamics of Selected Bioactive Substances Changes in Cucurbita Moschata Duch. Ex Poir. After Storage and Different Methods of Technological Processing. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(2), 387-393. doi: 10.11118/actaun201664020387
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