Autor: Kwiecień, Agnieszka - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: PRACE research infrastructure offer for Polish R\&D community
Autorzy:: Kupczyk, Mirosław
Białoskórski, Michał
Tylman, Rafał
Noga, Klemens
Kwiecień, Agnieszka
Uchroński, Mariusz
Meyer, Norbert
Powiązania:: https://bibliotekanauki.pl/articles/1955270.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Gdańska
Tematy:: PRACE-RI
Tier-1
Tier-0
Petaflop HPC
European Research Area
DECI
SHAPE
Opis:: The mission of the PRACE Research Infrastructure is to enable high impactscientific discovery and engineering research and development across all disciplines to enhance European competitiveness for the benefit of society. The paper presents the current state of the computational infrastructure, which is unique on the European level and procedures helping with the seamless access to the European HPC infrastructure: supercomputers, applications,storage. Several Polish computational grants have been called in the paper in order to present examples of the Polish domestic scientific engagement.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2018, 22, 4; 285--302
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Arbutin production via biotransformation of hydroquinone in in vitro cultures of Aronia melanocarpa (Michx.) Elliott
Autorzy:: Kwiecień, Inga
Szopa, Agnieszka
Madej, Kornelia
Ekiert, Halina
Powiązania:: https://bibliotekanauki.pl/articles/1039510.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: arbutin
black chokeberry
biotransformation
hydroquinone
in vitro cultures
Opis:: Arbutin (hydroquinone β-D-glucoside) is a compound of plant origin possessing valuable therapeutic (urinary tract disinfection) and cosmetic (skin whitening) properties, which can be obtained from in vitro cultures of plants belonging to different taxa via biotransformation of exogenously supplemented hydroquinone. Agitating cultures of Aronia melanocarpa were maintained on the Murashige and Skoog medium containing growth regulators: the cytokinin - BAP (6-benzylaminopurine), 2 mg/l and the auxin NAA (α-naphthaleneacetic acid), 2 mg/l. The biomass was cultured for 2 weeks and then hydroquinone was supplemented at the following doses: 96, 144, 192, 288 and 384 mg/l either undivided or divided into two or three portions added at 24-hour intervals. The content of the reaction product - arbutin, was determined using an HPLC method in methanolic extracts from biomass and lyophilized medium samples collected 24 hours after the addition of the last precursor dose. The total amounts of arbutin were very diverse, from 2.71 to 8.27 g/100g d.w. The production of arbutin rose with increasing hydroquinone concentration. The maximum content of the product was observed after hydroquinone addition at 384 mg/l divided into two portions. Biotransformation efficiency also varied widely, ranging from 37.04% do 73.80%. The identity of the product - arbutin, after its isolation and purification was confirmed by spectral analysis (1H-NMR spectrum). The maximum amount of arbutin obtained was higher than that required by the latest 9th Edition of the Polish Pharmacopoeia and by the newest 8th Edithion of European Pharmacopoeia for Uvae ursi folium (7.0 g/100g d.w.), and is interesting from practical point of view.
Źródło:: Acta Biochimica Polonica; 2013, 60, 4; 865-870
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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