Effect of growing method on the quality of pumpkins and pumpkin products
Lithuanian University of Agriculture
Studentų g. 11, 4324 Akademija, Kaunas, Lithuania
The aim of this work was to investigate the effect of alternative and conventional growing methods on the
quality of raw and processed pumpkin products.
It is necessary to create conditions for the production of alternative agricultural products and reduce food
pollution, because of the recent change of attitude towards food quality.
Pumpkins were grown at the Experimental station of the Lithuanian Agricultural University and at an organic
farm in the period 1999-2001. The material consisted of five pumpkin cultivars: two of Cucurbita
maxima, i.e. ‘Stofuntovaja’ and ‘Bambino’, and three of Cucurbita
pepo, i.e. ‘Makaronowa Warszawska’, ‘Jack O'Lantern’, and
‘Miranda’. The pumpkins were grown using two methods: organically (fertilized with a mixture of
composted manure and plant waste 40 t ha-1), and conventionally
(fertilized with “Kemira Power” 500 kg ha-1). The investigation
concerned biochemical composition, technological
characteristics of raw pumpkin, and quality of processed products - jams
and sweetmeats. In a number of cases the quantitative indices of
biochemical composition were higher in the conventionally grown pumpkins.
The results show that organically grown pumpkins accumulated greater
amounts of dry matter (by 1.5%), β-carotene (by 0.4 mg 100 g-1)
and vitamin E (by 0.5 mg 100 g-1), while when conventionally
grown there were greater amounts of dietary fibre (by 2.1%) and vitamin C
(by 5.2 mg 100 g-1). Pumpkin ‘Stofuntovaja’, ‘Bambino’,
and ‘Jack O'Lantern’ had the best processing characteristics.
Danilchenko H., 2002. Effect of growing method on the quality of pumpkins and pumpkins
products. Folia Horticulturae 14/2: 103-112.