Temat: biosynthesis - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zinc Oxide nanoparticles synthesis by use of aqueous extracts of Muntingia calabura L.
Autorzy:: Manokari, M.
Shekhawat, Mahipal S.
Powiązania:: https://bibliotekanauki.pl/articles/1077767.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Biosynthesis
Muntingia calabura
Zinc oxide nanoparticles
optical properties
Opis:: Biological synthesis of metal nanoparticles gained worldwide interest due to their rapid, non-toxic, economical, single-step technique and eco-friendly alternative. Green-chemical approach of production of Zinc Oxide (ZnO) nanoparticles (NPs) has been exploited in the field of medicine, food packaging, nano-optical and electrical devices. Muntingia calabura is a multipotent medicinal plant with astounded biological activities and phytoconstituents. The nanoparticles obtained using aqueous extracts of various parts of M. calabura were characterized with UV-VIS spectroscopy to obtain information concerning the optical properties of synthesized ZnO nanoparticles. The proposed green and economical method could be used for large scale production of nanostructures because of its advantages over other physical and chemical methods.
Źródło:: World News of Natural Sciences; 2019, 22; 31-40
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Xanthine, xanthosine and its nucleotides: solution structures of neutral and ionic forms, and relevance to substrate properties in various enzyme systems and metabolic pathways.
Autorzy:: Kulikowska, Ewa
Kierdaszuk, Borys
Shugar, David
Powiązania:: https://bibliotekanauki.pl/articles/1043286.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: enzyme reactions
prototropic tautomerism
xanthine
caffeine biosynthesis
metabolic pathways
G proteins
base pairing
xanthosine
acid/base properties
nucleotides
Opis:: The 6-oxopurine xanthine (Xan, neutral form 2,6-diketopurine) differs from the corresponding 6-oxopurines guanine (Gua) and hypoxanthine (Hyp) in that, at physiological pH, it consists of a ≈ 1:1 equilibrium mixture of the neutral and monoanionic forms, the latter due to ionization of N(3)-H, in striking contrast to dissociation of the N(1)-H in both Gua and Hyp at higher pH. In xanthosine (Xao) and its nucleotides the xanthine ring is predominantly, or exclusively, a similar monoanion at physiological pH. The foregoing has, somewhat surprisingly, been widely overlooked in studies on the properties of these compounds in various enzyme systems and metabolic pathways, including, amongst others, xanthine oxidase, purine phosphoribosyltransferases, IMP dehydrogenases, purine nucleoside phosphorylases, nucleoside hydrolases, the enzymes involved in the biosynthesis of caffeine, the development of xanthine nucleotide-directed G proteins, the pharmacological properties of alkylxanthines. We here review the acid/base properties of xanthine, its nucleosides and nucleotides, their N-alkyl derivatives and other analogues, and their relevance to studies on the foregoing. Included also is a survey of the pH-dependent helical forms of polyxanthylic acid, poly(X), its ability to form helical complexes with a broad range of other synthetic homopolynucleotides, the base pairing properties of xanthine in synthetic oligonucleotides, and in damaged DNA, as well as enzymes involved in circumventing the existence of xanthine in natural DNA.
Źródło:: Acta Biochimica Polonica; 2004, 51, 2; 493-531
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Wplyw dodatku surowcow pochodzenia naturalnego na wydajnosc biosyntezy kwasu cytrynowego metoda hodowli w podlozu stalym
Autorzy:: Gasiorek, E
Lesniak, W.
Powiązania:: https://bibliotekanauki.pl/articles/825967.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Technologów Żywności
Tematy:: surowce roslinne
kwas cytrynowy
skrobia kukurydziana
melasa
podloza hodowlane
biosynteza
wyslodki buraczane
tapioka
podloza stale
Aspergillus niger
otreby pszenne
otrzymywanie
plant raw material
citric acid
corn starch
molasse
culture medium
biosynthesis
beet pulp
tapioca
solid medium
wheat bran
obtaining
Opis:: W pracy badano wpływ dodatku naturalnych surowców pochodzenia roślinnego na biosyntezę kwasu cytrynowego, prowadzoną metodą hodowli w podłożu stałym z użyciem pleśni Aspergillus niger. W tym celu do głównego surowca, wysłodków buraczanych, dodawano różne ilości tapioki, skrobi kukurydzianej, otrąb pszennych i żytnich, wycierki ziemniaczanej oraz melasy buraczanej i trzcinowej. Wydajność kwasu cytrynowego wahała się, w zależności od stosowanego surowca, od 68 g/kg s.s., w przypadku otrąb pszennych do 160 g/kg s.s., przy zastosowaniu wycierki ziemniaczanej oraz do ponad 200 g/kg s.s., w przypadku dodania tapioki lub melasy trzcinowej.
A solid state fermentation method was developed for citric acid production from different substrates by culturing Aspergillus niger S. A Sugar beet pulp was applied as the main substrate; it was enriched by raw materials such as: tapioca, beet or cane molasses, corn starch, wheat bran, and potato waste pulp. The yield of citric acid varied depending on the type of different substrates added; it ranged from 68 g/kg d.s. for wheat bran added, to 160 g/kg d.s. as for potato waste pulp, and up to more than 200 g /kg d.s. as for the addition of tapioca and cane molasses.
Źródło:: Żywność Nauka Technologia Jakość; 2003, 10, 1; 48-58
1425-6959
Pojawia się w:: Żywność Nauka Technologia Jakość
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: TSD1 (TUMORUS SHOOT DEVELOPMENT1) and TSD2 genes related with cell wall function are involved in somatic embryogenesis induced in vitro in Arabidopsis
Autorzy:: Kudelko, K.
Grzybkowska, D.
Gaj, M.D.
Powiązania:: https://bibliotekanauki.pl/articles/80111.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
TSD1 gene
TSD2 gene
cell wall
somatic embryogenesis
Arabidopsis
cellulose biosynthesis
methyltransferase
cell adhesion
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Trehaloza – właściwości, biosynteza, zastosowanie
Trehalose – properties, biosynthesis and applications
Autorzy:: Burek, M.
Waśkiewicz, S.
Wandzik, I.
Kamińska, K.
Powiązania:: https://bibliotekanauki.pl/articles/143174.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:: trehaloza
bioprotekcja
biosynteza
trehalose
bioprotection
biosynthesis
Opis:: α,α-Trehaloza jest naturalnie występującym disacharydem, zbudowanym z dwóch cząsteczek glukozy połączonych wiązaniem α,α- 1,1’-O-glikozydowym. Znana jest głównie ze zdolności do stabilizacji białek w warunkach stresu środowiskowego oraz hamowania ich agregacji. Po opracowaniu wielkotonażowej, biotechnologicznej metody produkcji, trehaloza znalazła liczne zastosowania w różnych gałęziach przemysłu, głównie w przemyśle spożywczym, kosmetycznym, farmaceutycznym i medycynie. Dowiedziono, że właściwości bioprotekcyjne trehalozy zostają zintensyfikowane w przypadku jej glikopolimerów.
α,α -Trehalose is naturally occurring disaccharide composed of two glucose molecules linked by α,α -1,1’-O-glycosydic bond. It is primarily known from its ability to protect proteins during environmental stresses and inhibition of their aggregation. The development of largescale bioprocess has allowed to use trehalose in various applications, mainly in the food, cosmetic and pharmaceutical industry as well as in medicine. It was reported that bioprotective properties are amplified when trehalose is incorporated in polymer chain as a pendant group.
Źródło:: Chemik; 2015, 69, 8; 469-476
0009-2886
Pojawia się w:: Chemik
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: trans-Pro isosteres in the development of non-selective and selective mimetic agonists of insect pyrokinin neuropeptides: A review
Autorzy:: Nachman, R.J.
Powiązania:: https://bibliotekanauki.pl/articles/55206.pdf
Data publikacji:: 2009
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: diapause hormone
physiological process
melanization
pupariation
pheromonotropin
neuropeptide
pyrokinin family
pheromone
diapause break
pheromone biosynthesis activating neuropeptide
insect
reddish colouration hormone
peptide
Opis:: The pyrokinin (PK) family plays a multifunctional role in an array of important physiological processes in a variety of insects. A PK active core analog containing an (E)-alkene, transPro isosteric component was evaluated in five disparate PK bioassays and/or in a recombinant PK receptor cell line, representing six different insect species. The assays included pheromone biosynthesis in the moth Heliothis peltigera, melanization in the larval Spodoptera littoralis, pupariation acceleration in the larval fly Neobellieria bullata, diapause termination in the moth Heliothis zea, and hindgut contraction in the cockroach Leucophaea maderae. This constrained analog demonstrated unselective agonist activity that approached, matched, or exceeded the activity of parent PK peptides of equal length in all six PK assays. The results provide strong evidence for the orientation of Pro and the core conformation adopted by PK neuropeptides during interaction with disparate PK receptors. A PK active core analog incorporating a second transPro motif, the dihydroimidazoline moiety, was found to demonstrate pure, selective agonism in the melanotropic bioassay, with no significant activity in three other PK bioassays. Both types of transPro isosteric analogs feature modification adjacent to the primary tissue-bound peptidase hydrolysis site that is expected to enhance biostability over natural PK peptides. The research further identifies two novel scaffolds with which to design either selective or non-selective mimetic PK analogs as potential leads in the development of environmentally favorable pest management agents capable of disrupting PK-regulated systems.
Źródło:: Pestycydy; 2009, 1-4; 33-39
0208-8703
Pojawia się w:: Pestycydy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The new aspects of aminoacyl-tRNA synthetases.
Autorzy:: Szymański, Maciej
Deniziak, Marzanna
Barciszewski, Jan
Powiązania:: https://bibliotekanauki.pl/articles/1044333.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: tRNA
aminoacylation
protein biosynthesis
aminoacyl-tRNA synthetases
Opis:: Aminoacyl-tRNA synthetases (AARS) are essential proteins found in all living organisms. They form a diverse group of enzymes that ensure the fidelity of transfer of genetic information from the DNA into the protein. AARS catalyse the attachment of amino acids to transfer RNAs and thereby establish the rules of the genetic code by virtue of matching the nucleotide triplet of the anticodon with its cognate amino acid. Here we summarise the effects of recent studies on this interesting family of multifunctional enzymes.
Źródło:: Acta Biochimica Polonica; 2000, 47, 3; 821-834
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The influence of some compounds on growth of Phoma exigua var. foveata in vitro
Autorzy:: Giebel, J
Dopierala, U.
Powiązania:: https://bibliotekanauki.pl/articles/66594.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: polyamine biosynthesis
potato gangrene
plant protection
Phoma exigua var.foveata
growth
phenolic compound
Opis:: In laboratory condition phenolic compounds, such as scopoletin, the ferulic, p-coumaric and trans-cinnamic acid retarded growth of Phoma exigua var. foveata mycelium. Equal effect revealed inhibitors of polyamine biosynthesis, DFMA and DFMO. A role of tested substances in potato gangrene pathogenesis is discussed.
W kulturach in vitro związki fenolowe, takie jak skopoletyna, kwasy: ferulowy, p-kumarowy i trans-cynamonowy ograniczały wzrost grzybni Phoma exigua var. foveata, sprawcę gangreny ziemniaka. Podobne działanie wykazywały inhibitory biosyntezy poliamin, difluorometyloarginina (DFMA) oraz difluorometyloornityna (DFMO). Przeprowadzono dyskusję nad ewentualną rolą testowanych substancji w patogenezie gangreny ziemniaka.
Źródło:: Journal of Plant Protection Research; 1998, 38, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The Influence of Agroclimatic Factors on the Formation of Oil Content in Flax Seeds in the North of Kazakhstan
Autorzy:: Gordeyeva, Y.
Shestakova, N.
Powiązania:: https://bibliotekanauki.pl/articles/123448.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: oil flax
fat biosynthesis
genotype
plasticity
stability
climatic parameters
Opis:: Flax (Linum usitatissimum L.) is one of the promising oil crops in the north of Kazakhstan. Over the last 10 years, the total area under this crop in the region has increased fourteen-fold, since flax is a very plastic crop for steppe and dry steppe conditions, and oil seeds are in high demand in the world market. Flaxseed oil, due to the content of polyunsaturated fatty acids, occupies one of the first positions among other edible vegetable oils. Depending on the environmental conditions, the oil content of the crop may vary from 36.4% to 52.0%, while, as noted by many researchers, the change in the oil content depends on the genotypic characteristics. Therefore, the study aims to analyze the influence of the genotype and climatic conditions of cultivation on the fat biosynthesis in flax seeds in the context of the dry steppe zone of Northern Kazakhstan on dark chestnut soils of the Akmola region. Field experiments were conducted in 2015–2017 with the study of nine oil flaxseed cultivars (of mid-season varieties) sown on May 20th at the seeding rate of 7 million seeds/ha based on the traditional technology of cultivation recommended for the region. The climatic parameters were taken into account according to the meteorological service data. The fat content was determined by the extraction method using a Soxhlet apparatus, in accordance with GOST (All-Union State Standard) 10857–64, and the moisture content was determined by means of the thermogravimetric method, according to the National Standard of the Republic of Kazakhstan 2.195–2010, for the recalculation of the oil content for absolutely dry matter. It was found that the formation of oil depends on the climatic parameters and on the sum of active temperatures during the ripening period, in particular. The evaluation of plasticity and stability of the cultivars (genotypes) showed that VNIIMK 620, Lirina, Karabalyksky 7 can be considered highly valuable cultivars and Severny, Biryuza, Kazar, Ilyich – valuable cultivars in terms of the oil content for the dry steppe zone.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 102-105
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The GUN4 protein plays a regulatory role in tetrapyrrole biosynthesis pathway and is required for chloroplast-to-nucleus signalling in unicellular green algae Chlamydomonas reinhardtii
Autorzy:: Brzezowski, P.
Grimm, B.
Powiązania:: https://bibliotekanauki.pl/articles/81179.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
aerobic organism
GUN4 protein
tetrapyrrole biosynthesis
chloroplast
unicellular green alga
Chlamydomonas reinhardtii
5-aminolevulinic acid
gene expression
chlorophyll level
light condition
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The effect of lactose content in culture medium on the course of propionic fermentation
Autorzy:: Kujawski, M.
Rymaszewski, J.
Cichosz, G.
Laniewska-Moroz, L.
Powiązania:: https://bibliotekanauki.pl/articles/1371734.pdf
Data publikacji:: 1992
Wydawca:: Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:: nitrogen compound
lactose
propionic fermentation
culture medium
dairy technology
lactose content
biosynthesis
propionic acid bacteria
acetic acid
whey
Źródło:: Polish Journal of Food and Nutrition Sciences; 1992, 01, 3; 27-36
1230-0322
2083-6007
Pojawia się w:: Polish Journal of Food and Nutrition Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: The effect of Ascaris lumbricoides suis trypsin inhibitor on RNA, DNA and protein biosyntheses in developing A.lumbricoides suis eggs - Part II
Autorzy:: Ochecka-Szymanska, A.
Turski, W.A.
Powiązania:: https://bibliotekanauki.pl/articles/836869.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: parasite
RNA
Ascaris lumbricoides suis
trypsin inhibitor
biosynthesis
protein
DNA
egg
Źródło:: Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: The effect of Ascaris lumbricoides suis trypsin inhibitor on RNA, DNA, and protein biosyntheses in developing A.lumbricoides suis eggs - Part I
Autorzy:: Ochecka-Szymanska, A.
Turski, W.A.
Powiązania:: https://bibliotekanauki.pl/articles/838472.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: parasite
RNA
Ascaris lumbricoides suis
trypsin inhibitor
biosynthesis
protein
DNA
egg
Źródło:: Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: The cell-free protein biosynthesis - applications and analysis of the system.
Autorzy:: Lamla, Thorsten
Mammeri, Kerstin
Erdmann, Volker
Powiązania:: https://bibliotekanauki.pl/articles/1044140.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: in vitro protein biosynthesis
ribosome display
2D-gel elctrophoresis
His-tag and function
in vitro evolution of proteins
Strep-tag affinity peptide
Opis:: The in vitro protein biosynthesis has the potentials to become a powerful technology for biochemical research. Beside the determination of structure and function the in vitro evolution of proteins is also of great interest. The system described was used to produce bovine heart fatty acid binding protein (FABP) and bacterial chloramphenicol acetyltransferase (CAT) with and without fusion of the Strep-tag II affinity peptide. The proteins were purified after and during protein biosynthesis by using a StrepTactin Sepharose matrix. No significant influence of the Strep-tag and the conditions during the affinity chromatography on maturation or activity of the protein was observed. The in vitro evolution of proteins is feasible by means of ribosome display. The selection of a specific mRNA coding for a shortened FABP with a N-terminal His-tag via the accompanying protein property was shown. Goal of the selection was to bind the FABP via the His-tag on Ni(II)-IDA-agarose. After nine cycles of transcription, translation, affinity selection and RT-PCR the protein with the His-tag could be enriched 108-fold. In order to correlate a possible relationship between changes in protein population and biological function studies were initiated in which 2-dimensional protein patterns of the total in vitro system were compared after 0 and 2 h reaction time. The very interesting findings are that a number of proteins disappear, while others are newly formed during protein synthesis.
Źródło:: Acta Biochimica Polonica; 2001, 48, 2; 453-465
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki