Search

... interest for their use in biotechnological processes to obtain complexes or individual bioactive substances with different orientations. Selecting optimal cultivation conditions for cyanobacteria will contribute to the rapid accumulation of bacterial biomass and maximize the yield of biologically active substances. This study analyzes the influence of temperature and light spectral composition on the growth of the cyanobacterium Cyanobacterium sp. IPPAS B-1200 under stationary conditions. The strain ...

... part of the Baltic Sea. A hydrobiological study was carried out in spring and summer of 1998—2009 in the framework of national monitoring. The species composition of the Calanoida group was identified as well as the variations in their abundance and biomass. A seasonal (spring – summer) increase in the abundance and biomass of zooplankton and Calanoida was observed. The seasonal increase took place against the background of a steady decrease in the abundance abundance and biomass of crustacean ...

Green microalgae belong to a phyletic category of organisms that have adapted to a wide range of ecological conditions. This study explores a novel freshwater microalgae isolate, Chlorella sp. B1, as a potential platform for biomass production. The research evaluated the isolate’s ability to grow in mixotrophic media. The results reveal a relationship between growth rate and dynamic changes in biomass composition. The use of granulated forms of the fertilizer “Fertika ...

... various industries, making the search for new microorganisms capable of producing these enzymes a highly relevant task. A source for isolating strains with xylanolytic activity is plant-­based materials rich in hemicelluloses, such as lignocellulosic biomass. In the Kaliningrad region, such materials include the meal of industrial hemp seeds (Cannabis sativa), seed hulls and seeds of white lupine (Lupinus albus), unroasted soybean hulls, roasted soybean hulls, granulated soybean hulls, and seeds of ...

This article examines seasonal and interannual changes in the parameters of mesoscale water dynamics in the upper 200 m layer of the ocean due to the biomass and biological resources distribution, as well as the specific dynamics of the atmospheric processes. The authors identify the scope and mechanisms of the impact of oceanological conditions on the biomass and distribution of commercial horse mackerel ...

... research evaluates the effect of amino acids (phenylalanine and tyrosine) on the growth and content of biologically active substances in the culture of bearded roots of Hyssopys officinalis. The study of the effect of amino acids on the growth of raw biomass of bearded roots of H. officinalis showed that when phenylalanine and tyrosine were introduced into the nutrient medium at a concentration of 1 μM, the maximum increase in biomass was observed. The content of biologically active substances in ...

... the coast of the Vistula and the Curonian Spits in April — October 2011 showed significant differences in the seasonal dynamics of key parameters characterizing these groups. On the Curonian Spit, an increase in the average and total abundance and biomass of Talitridae is ensures through a normal life cycle. On the Vistula Spit, the preservation of a relatively stable average and total abundance and biomass is explained by an increase in the number of juveniles that replace older age groups in ...

This article investigates the state of chironomid communities in Lake Penkovoe, Pond Isakovsky, Pond Shkolny, and the Karasevka pond system in Kaliningrad in spring 2011. The authors provide new data on the species composition, abundance, and biomass of chironomidae. The Shannon, Simpson, Balushkin, and Margalef indices were calculated for the chironomid communities. The authors identified the dominant species in the communities of chironomids and evaluated the quality of water in the studied ...

... The antagonistic activity of L. lactis IMB B-7352 against cultures of phytopathogenic bacteria was assessed using the agar block method. It was found that nanoselenium at a concentration of 0.75 mg/L exhibited optimal stimulatory activity in terms of biomass accumulation by L. lactis IMB B-7352. Examination of the antagonistic activity of L. lactis IMB B-7352 revealed that the inhibition zones against Xanthomonas campestris B-4102 and Agrobacterium tume­faciens B-8833 measured 55.0 mm and 20.0 mm,...

The technology for microalgae production in incubators involves optimizing cultivation conditions for a specific identified strain. However, when working with samples isolated from environmental objects, it is often necessary to deal with unidentified strains, making it challenging to maintain optimal cultivation conditions. In this study, 10 isolates of Chlorella species were used, which were subsequently divided into 3 growth groups based on the volume of the basic culture medium and temperature...

... currently underutilized; however, it possesses the unique ability to absorb and effectively sequester CO2 for centuries when incorporated into soil, simultaneously enhancing soil quality and promoting sustainable land use and development. The link between biomass and biochar represents one of the most effective strategies for addressing climate challenges. This triple positive effect makes biochar and its production technologies highly promising in the context of climate policy. As a result, a distinct ...

... and negative impacts, were identified. The reasons for the diverse effects of protatrans on biosynthesis processes in yeast cells require further research. Kiryukhina A.S., Lozovaya T.S., Adamovich S.N. protatranes; Candida ethanolica; cells; biomass; single cell protein; productivity 118-130 10.5922/vestniknat-2024-2-8

... 20 species of macroalgae. Depending on the abiotic factors in the four hydrological regions of the lagoon, the floristic diversity and distribution of macrophytes has its own characteristics. The maximum species diversity (29 species), as well as the biomass of macrophytes, are characteristic of the eastern region, characterized by mini­mal salinity values and a high level of nutrients. Volodina A.A., Gerb M.A., Zvereva A. Yu., Gorlach A.A. macrophytes, aquatic flora, Vistula Lagoon, Kaliningrad ...

... glutamicum B-1722 have the greatest ability to assimilate the components of the medium. The addition of such growth components as nicotinic acid and NaCl had no significant effect on the accumulation of C. glutamicum B-1002 and C. glutamicum B-1722 biomass. It has been proven that the best medium for cultivation of C. glutamicum is molasse that has gone through the entire technological process and contains the maximum amount of components necessary for the cultivation of C. glutamicum and the production ...

... through the example of Sterlitamak Petrochemical Plant. The offered biotesting method helps estimate total wastewater toxicity. The estimation of phytotoxicity was based on the following parameters of the watercress (Lepidum sativum (L.)): sprout growth, biomass accumulation, and seed sprouting. 1. Васильев В.   М. Биологический контроль окружающей среды: биоиндика­ция и биотестирование. М., 2007. 2. Гигиенические ...

The article presents the results of many years' research (1991-2007) on the chlorophyll and nutrient concentrations, biomass and primary production of phytoplankton in the Curonian Lagoon. The main factors affecting the level of biological production and the trophic status are determined by the comparison of hydrological and chemical indicators. Water temperature is ...

... морфология пресноводных животных: сб. науч. тр. Л., 1986. Вып. 56 (59). С. 280—306. Vinokurova N. V., Chervotkina T. A. chironomids, Lake Penkovoe, Pond Isakovsky, Karasevka pond system, Pond Shkolny, abundance, biomass, species diversity. 103-112