Tag Archives: mass

814-826 L. Shevchuk, Y. Tereshchenko, Y. Vintskovska, L. Levchuk, S. Babenko and R. Hrynyk
Yield and content of biologically active substances in blue honeysuckle fruit (Lonicera caerulea L.) grown in the Forest Steppe of Ukraine
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Yield and content of biologically active substances in blue honeysuckle fruit (Lonicera caerulea L.) grown in the Forest Steppe of Ukraine

L. Shevchuk¹²*, Y. Tereshchenko², Y. Vintskovska², L. Levchuk², S. Babenko² and R. Hrynyk²

¹National University of Life and Environmental Sciences of Ukraine, Agrobiological Faculty, 15 Heroes of Defense Str., UA03041 Kyiv, Ukraine
²Institute of Horticulture of the National Academy of Agrarian Sciences of Ukraine, 23 Sadova Str., UA03027 Kyiv, Ukraine
*Correspondence: zberig@ukr.net

Abstract:

The blue honeysuckle (Lonicera caerulea L.) is a relatively new crop in Ukraine, its industrial cultivation is only 100 hectares. The main constraints are the lack of varieties with high yield and nutritional value of berries. Therefore, a study of the yield and quality of introduced varieties is necessary and relevant, both for producers and breeders. With our research, we determined the potential of the early stage of blue honeysuckle berries under the conditions of their cultivation in the Forest Steppe of Ukraine and the weather conditions of the year of the specified region. We assessed how early we can get a crop and set what quality and what it will be. To clearly understand the quality of the grown fruits, their average weight, size and uniformity were studied. From nutritional indicators of fruit quality, the content of dry matter, soluble solids, sugars and titrated acids was studied, from biologically active substances, the content of vitamin C and total phenolic was determined. It was found that in the zone of the Forest Steppe of Ukraine from the studied group of varieties, the highest yield potential, 3.13 kg from a bush for the second year of fruiting and fruit mass 2.4 g, had a variety of Canadian breeding ‘Boreal Beauty’. The fruits of the cultivars ‘Duet’ (4.3) and ‘Boreal Blizzard’ (4.5) were distinguished by the balance of taste according to the sugar-acid index, and the maximum amount of total phenolics for the studied group of varieties was accumulated by the fruits of ‘Boreal Beast’ (1,000 mg 100 g-1).

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1479–1486 E. Shalavina, A. Briukhanov, E. Vasilev, R. Uvarov and A. Valge
Variation in the mass and moisture content of solid organic waste originating from a pig complex during its fermentation
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Variation in the mass and moisture content of solid organic waste originating from a pig complex during its fermentation

E. Shalavina*, A. Briukhanov, E. Vasilev, R. Uvarov and A. Valge

Federal Scientific Agroengineering Center VIM (FSAC VIM) 3, Filtrovskoje Shosse p.o. Tiarlevo, RU196625 Saint Petersburg, Russia
*Correspondence: shalavinaev@mail.ru

Abstract:

The focus of the study was the fermentation of an organic waste mixture originating from a pig-rearing complex. The organic waste was processed in the laboratory-scale drum fermenter. Through the fermentation process, the fermented material was weighed by a system of four strain gauges installed under the fermenter. In our previous study, the following initial mixture characteristics were justified to have the fermentation process going – 65% to 70% moisture content and 400–600 kg m-3 density. The optimal operation mode of the fermenter was identified depending on the initial mixture composition – aeration frequency of 5 min h-1; air consumption of 11.3 m3 h-1 per 1.7 m3 of the fermenter volume; drum rotation interval – three times every 12 hours. Under this operating mode, the mass loss was 3% already on the third fermentation day and 7% – on the fifth day. As a result, the mass of the finished organic fertiliser was 9% smaller than that of the loaded mixture. The moisture content of the processed material also decreased: under the average moisture content of the loaded mixture of 68.7%, the average moisture content of the organic fertiliser was 66.4%. Based on the resulting experimental data, the mathematical models describing the dependence of the mass and moisture content of the processed material on the fermentation time were created. The study outcomes allow concluding that the solid-state aerobic fermentation is one of the promising options for the utilisation of the solid fraction of pig slurry.

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