Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sarmīte Janceva"'
Autor:
Galina Telysheva, Lilija Jashina, Aleksandr Arshanica, Anna Andersone, Yegor Akishins, Sarmīte Janceva, Līga Lauberte
Publikováno v:
Key Engineering Materials. 850:190-195
Fucus V e s i culosus (F. Vesiculosus ) by its composition is a unique raw for obtaining of variety substances with a wide range of consumer properties. The composition of the polyphenolic fraction of F.Vesiculosus is characterized by a predominant c
Autor:
Sarmīte Janceva, Anna Andersone, Oskars Bikovens, Laima Vevere, Liga Lauberte, Galina Telysheva
Publikováno v:
Key Engineering Materials. 800:98-102
In the present study, the Fucus vesiculosus is considered as perspective feedstock for obtaining fertilizers and valuable biologically active compounds. Polyphenols (phlorotannin) and sulfated polysaccharide (fucoidan) were isolated using sequential
Autor:
Sarmite Janceva, Anna Andersone, Liga Lauberte, Natalija Zaharova, Galina Telysheva, Jelena Krasilnikova, Gints Rieksts
Publikováno v:
BioResources, Vol 19, Iss 1, Pp 886-897 (2023)
Sea buckthorn (Hippophae rhamnoides L.) twigs, remaining after harvesting and pruning, are an underutilized and little-explored biomass resource. This study investigated the content of serotonin in 10 sea buckthorn cultivars (‘Maria Bruvele’, ‘
Externí odkaz:
https://doaj.org/article/3e4c882db61a4268b8095aae10f2c4bb
Publikováno v:
Key Engineering Materials. 762:197-202
A condensed tannin enriched extract from Grey alder bark was completely liquefied using the batch solvent free oxypropylation process in a high pressure reactor. The obtained polyols were characterized in terms of their composition, functionality, vi
Autor:
Alexandr Arshanitsa, Sarmīte Janceva, Liga Lauberte, Jegor Akishin, Tatiana Dizhbite, Galina Telysheva
Publikováno v:
Key Engineering Materials. 762:163-168
Optimization of extraction conditions of the proanthocyanidins (PAC) and PAC-rich extract (PACE) from bark of alder species (Alnus incana and Alnus glutinosa) were performed varying solvents (ethanol, distilled water), extraction methods (conventiona
Autor:
Laima Vēvere, Sarmīte Janceva, Jeļena Krasiļņikova, Mārcis Dzenis, Gaļina Teliševa, Tatjana Dižbite
Publikováno v:
Materials Science and Applied Chemistry, Vol 33, Iss 1, Pp 26-30 (2016)
With the purpose to assess potential of alder tree bark as a renewable source of bioactive polyphenolic compounds, antioxidant properties of hydrophilic extracts and proanthocyanidins (PAC) isolated from bark of two alder species (grey alder and blac
Autor:
Anna Andersone, Sarmite Janceva, Liga Lauberte, Jelena Krasilnikova, Natalija Zaharova, Vizma Nikolajeva, Gints Rieksts, Galina Telysheva
Publikováno v:
Metabolites, Vol 13, Iss 8, p 922 (2023)
The twigs of sea buckthorn, blackcurrant, gooseberries, quince, and grapes were evaluated as a promising source of biologically active compounds—proanthocyanidins (PACs). Sea buckthorn twigs had the highest content of PACs (9.2% on dry biomass). Pr
Externí odkaz:
https://doaj.org/article/d65e651b040e431c9ed9f23de338d2c2
Autor:
Galina Telysheva, Laima Vevere, Mārcis Dzenis, Alexandr Arshanitsa, Sarmīte Janceva, Tatiana Dizhbite
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 111:012013
The barks of deciduous trees spread over a wide area of Northern Europe, were sequentially extracted using solvents of increasing polarity. The highest yields of hydrophilic extractives were found for ash tree and goat willow (23.6% and 23.8%, respec
Autor:
Anna Andersone, Sarmite Janceva, Liga Lauberte, Anna Ramata-Stunda, Vizma Nikolajeva, Natalija Zaharova, Gints Rieksts, Galina Telysheva
Publikováno v:
Molecules, Vol 28, Iss 2, p 863 (2023)
It has now been proven that many pathogens that cause infections and inflammation gradually mutate and become resistant to antibiotics. Chemically synthesized drugs treating inflammation most often only affect symptoms, but side effects could lead to
Externí odkaz:
https://doaj.org/article/4b86698421794c7cafa4fb6b4876a474
Autor:
Sarmite Janceva, Anna Andersone, Uldis Spulle, Ramunas Tupciauskas, Electra Papadopoulou, Oskars Bikovens, Martins Andzs, Natalija Zaharova, Gints Rieksts, Galina Telysheva
Publikováno v:
Materials, Vol 15, Iss 11, p 3894 (2022)
Toxic formaldehyde emissions, and the necessity to reduce the consumption of petrochemicals, stimulates the development of environmentally friendly adhesives. The aim of this research was to study, for the first time, the possibility of using condens
Externí odkaz:
https://doaj.org/article/c49f3688f04f4def8f3c10924f9e18f8