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Alpha-galactosidase in immobilized cells of Citrullus vulgaris L.

100%

Stano J., Micieta K., Tokhtaeva E., Fulmekova M.

Herba Polonica

2005

tom 51

nr 3-4

Cells of suspension culture Citrullus vulgaris cv. "Samara" were permeabilized by Tween 80 and immobilized by glutaraldehyde. The highest a-galactosidase activity was at pH 5.4 and 60°C. The hydrolysis of substrate was linear for 3.5 h reaching 65-70% conversion of the substrate. The cells characterized with high enzyme activity, and stability in long-term storage showed convenient physico-mechanical properties (physical protection from shear forces and easy separation of product from biocatalysts).

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Content of selected components in fruits of Polish watermelon cultivar 'Bingo' as dependent on the method of seedling production and irrigation

51%

Wichrowska D., Wojdyla T., Rolbiecki S., Rolbiecki R., Piszczek P.

Polish Journal of Food and Nutrition Sciences

2007

tom 57

nr 3[A]

The results of the study on the content of selected chemical components of watermelon (total sugars, reducing sugars, vitamin C, carotenoids and beta-carotene) of Polish cultivar ‘Bingo’ are presented in the paper. Cultivation was conducted in two successive vegetative seasons (2005 and 2006) near Bydgoszcz, with the use of drip irrigation. During seedling production three different variants of irradiation were used: sunny light, artificial daylight and artificial blue light. The drip irrigation, used during the vegetative season, decreased the content of total sugars as well as that of carotenoids and beta-carotene in watermelon fruits, whereas the content of reducing sugars and vitamin C was higher than that in fruits obtained from control plots (without irrigation). Irradiation with artificial daylight during seedling production had a positive influence on the content of total carotenoids, beta-carotene and vitamin C in watermelon fruits. The content of sugars was differentiated in fruits of watermelon by irradiation of seedlings. Fruits of plants originated from seedlings irradiated with sunny light were characterised by the highest content of sugars.

Ograniczanie wyników

1 Herba Polonica

1 Polish Journal of Food and Nutrition Sciences

1 Fulmekova M.

1 Micieta K.

1 Piszczek P.

1 Rolbiecki R.

1 Rolbiecki S.

1 Stano J.

1 Tokhtaeva E.

1 Wichrowska D.

1 Wojdyla T.

1 2007

1 2005

Wyniki wyszukiwania

Alpha-galactosidase in immobilized cells of Citrullus vulgaris L.

Content of selected components in fruits of Polish watermelon cultivar 'Bingo' as dependent on the method of seedling production and irrigation