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Wyświetlanie 1-11 z 11
Tytuł:
Ephedrine production from suspension cultures of Ephedra alata L. callus
Autorzy:
Hegazi, G.A.
Ghareb, H.E.
Gabr, M.F.
Powiązania:
https://bibliotekanauki.pl/articles/2096962.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
shake-flask culture
in vitro
alkaloid
biotic elicitor
Aspergillus niger
yeast extract
Opis:
Ephedra alata is an important Egyptian medicinal plant with enormous applications in pharmaceutical industry. Shake-flask suspension cultures of E. alata were established from internodal segment-derived callus. The suspension cultures were treated with two biotic elicitors, namely Aspergillus niger and yeast extract, to enhance the synthesis of ephedrine – the bioactive constituent of E. alata. Ephedrine was quantified using the high performance liquid chromatography technique. Ephedrine concentration was not directly related to biomass production. Aspergillus niger and yeast extract enhanced the production of ephedrine by 2.5- to 7-fold after different durations of incubation as compared to ephedrine content in the mother plant. Treatment with the fungal elicitor A. niger extract induced the maximum accumulation of ephedrine at the concentration of 1.67%; it also increased ephedrine biosynthesis by 7-fold in 24-day-old culture as compared to the ephedrine content in the mother plant and caused higher ephedrine biosynthesis than that in the control treatment without elicitors. The present protocol could be applicable for the large-scale production of ephedrine from E. alata.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 1; 25-33
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation, characterization and optimization of cross-linked fructosyltransferase aggregates for the production of prebiotic fructooligosaccharides
Autorzy:
Ademakinwa, A.N.
Ayinla, Z.A.
Omitogun, O.G.
Agboola, F.K.
Powiązania:
https://bibliotekanauki.pl/articles/81247.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fructosyltransferase
Aureobasidium pullulans
fructooligosaccharide
prebiotic
statistical optimization
scanning electron microscopy
X-ray spectroscopy
Fourier transform infrared spectroscopy
biotransformation
chemometric analysis
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2018, 99, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic analyses of cytosolic NADPH-regenerating systems reveal specific functions in oxidative stress responses
Autorzy:
Mhamdi, A.
Li, S.
Van Der Kelen, K.
Van Breusegem, F.
Noctor, G.
Powiązania:
https://bibliotekanauki.pl/articles/81109.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
genetic analysis
nicotinamide adenine dinucleotide phosphate
dehydrogenase
oxidative stress
gene expression
salicylic acid
hydrogen peroxide
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of biochemical and standard effects of acetaminophen in Lemna minor vs Lemna gibba
Autorzy:
Antunes, S.
Martins, L.
Santos, J.
Correia, B.
Goncalves, F.
Pinto, G.
Nunes, B.
Powiązania:
https://bibliotekanauki.pl/articles/79880.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
acetaminophen
Lemna minor
Lemna gibba
antipyretic drug
analgesic drug
biochemical effect
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensing thiol oxidation in Arabidopsis thaliana through a YAP1 genetically encoded probe
Autorzy:
Waszczak, C.
Akter, M.
Gevaert, K.
De Jaeger, G.
Messens, J.
Van Breusegem, F.
Powiązania:
https://bibliotekanauki.pl/articles/80234.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
reactive oxygen species
hydrogen peroxide
signalling molecule
plant development
metabolic adaptation
stress condition
redox signal
proteomic identification
sulphenome
cysteine thiol group
Arabidopsis thaliana
protein
signal transduction
oxidative stress
genetically encoding probe
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Redox state modulation in rice and its implications for plant development and stress responses
Autorzy:
Caverzan, A.
Ribeiro, C.
Lazzarotto, F.
Passaia, G.
Rosa, S.
Garighan, J.
Piovesana, M.
Carvalho, F.
Albenisio, J.
Margis, R.
Margis-Pinheiro, M.
Powiązania:
https://bibliotekanauki.pl/articles/79908.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
reactive oxygen species
scavenging enzyme
detoxification
redox state
rice
plant development
stress response
plant cell
biochemical property
antioxidative enzyme
ascorbate peroxidase
glutathione peroxidase
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Limits in the use of cPTIO as nitric oxide scavenger and EPR probe in plant cells and seedlings
Autorzy:
D'Alessandro, S.
Posocco, B.
Costa, A.
Zahariou, G.
Lo Schiavo, F.
Carbonera, D.
Zottini, M.
Powiązania:
https://bibliotekanauki.pl/articles/80661.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
nitric oxide
scavenger
plant cell
seedling
2-4-carboxyphenyl-4,4,5,5-tetramethyl imidazoline-1-oxyl-3-oxide
fluorescent dye
EPR probe
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical constituents of water hyacinth (Eichhornia crassipes) methanol leaf extract and its effect on selected enzymes of Periplaneta americana
Autorzy:
Adeleke, G.E.
Adedosu, O.T.
Ehigie, L.
Adegbola, P.I.
Olaniyi, A.A.
Agoola, T.O.
Ehigie, A.F.
Powiązania:
https://bibliotekanauki.pl/articles/2096284.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Eichhornia crassipes
spectroscopy
chromatography
Periplaneta americana
antioxidant enzymes
esterases
Opis:
Eichhornia crassipes (water hyacinth) possesses several biological properties. Periplaneta americana (cockroach) is a household insect pest that can disseminate pathogens. The present study analyses the chemical constituents of water hyacinth leaf methanol extract and its in vitro effects on antioxidant and esterase enzymes in cockroaches. Water hyacinth methanol extract (WHME) was subjected to gas chromatography-flame ionization detection (GC-FID). Crude enzyme preparations were obtained from nymph and adult cockroaches. In vitro effects of different concentrations (10–80 μg/ml) of WHME on superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), acetylcholinesterase (AChE), and carboxylesterase (CE) in crude enzyme preparations were spectrophotometrically measured using cypermethrin (CYP) and chlorpyrifos (CPF) as reference insecticides. The GC-FID chromatogram of WHME showed the presence of gallic acid, para-hydroxybenzoic acid, eritosin, gentisic acid, catechin, protocatechuric acid, quercetin, and eugenol. The WHME and CPF reduced catalase in adults and SOD in nymphs, while CYP and CPF reduced SOD activity in the adults of P. americana. GST was significantly increased by WHME in both nymph and adult cockroaches. AChE was reduced by WHME, CYP, and CPF in nymphs, while CE was increased by WHME in nymphs and adults as compared to the control. In conclusion, our study indicates a high phenolic content in the water hyacinth leaf methanol extract, which increased the activities of the antioxidant enzymes AChE and CE in P. americana. The results also show that the efficacy and the mode by which the extracts could induce toxicity depend on the growth stage of the cockroach.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 4; 323-336
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Starch-iodine assay method underestimates alpha-amylase inhibitory potential of antioxidative compounds and extracts
Autorzy:
Ononamadu, C.J.
Ezeigwe, O.C.
Owolarafe, T.A.
Ihegboro, G.O.
Lawal, T.A.
Salawu, K.
Umeoguaju, U.F.
Aminu, I.
Powiązania:
https://bibliotekanauki.pl/articles/2096980.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
α-amylase inhibition
starch-iodine
diabetes mellitus
limitations
decolorization
Opis:
Starch-iodine assay method for the determination of α-amylase activity is also used in screening extracts for α-amylase inhibitors. However, there are indications that this method may not be appropriate for screening some classes of compounds or plant extracts. The present study investigated the limitation(s) of this method in screening plant extracts/compounds for α-amylase inhibition. A crude methanol extract (CR) of Dacryodes edulis, its solvent fractions (ethyl acetate (EA), aqueous methanol (AM), and hexane (HX)), quercetin (QC), and benzoic acid (BA) were used for this study. The phytochemical content and antioxidant activity were screened spectrophotometrically. α-Amylase inhibition (expressed in percentage and as IC50) was determined by starch-iodine method approach I and II (ST-ID I and ST-ID II, respectively) and dinitrosalicylic acid (DNSA) as the control method. The results showed that the extracts/compounds (AM, EA, and QC) with significantly high polyphenolic content, antioxidant activity, and starch-iodine complex decolorization effect yielded contrary results of α-amylase inhibition when the results of ST-ID I and II methods were compared to that of the DNSA method. The other test samples (CR, HX, and BA) yielded similar results for all the three methods. The result also showed the decolorization (%) of starch-iodine complex by the test samples correlated significantly (r = 0.877, P < 0.05) with DPPH reduction (%). In conclusion, the present study showed that the starch-iodine method is not appropriate for screening antioxidative extracts/compounds for α-amylase inhibitors – they decolorize the assay reagent in a manner similar to DPPH reduction and hence confound the result.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 1; 45-54
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
NADPH-dependent alkenal-one oxidoreductase (AOR) supported the growth and the acclimation to the high light in Arabidopsis thaliana
Autorzy:
Saito, R.
Ifuku, K.
Sato, F.
Sakamoto, K.
Ikeda, K.
Tamoi, M.
Yamamoto, H.
Sugimoto, T.
Yamauchi, Y.
Amako, K.
Shimakawa, G.
Makino, A.
Miyake, C.
Powiązania:
https://bibliotekanauki.pl/articles/80923.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Arabidopsis thaliana
detoxification
reactive carbonyl
sugar metabolism
photosynthesis
acrolein
methylglyoxal
alkenal oxidoreductase
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The cysteine-rich receptor-like kinase family in Arabidopsis – a phenotypic framework for stress responses and ROS signaling
Autorzy:
Bourdais, G.
Burdiak, P.
Gauthier, A.
Nitsch, L.
Rayapuram, C.
Salojarvi, J.
Tri Anggoro, D.
Glow, D.
Zhou, J.
Kaufholdt, D.
Oracz, K.
Idanheimo, N.
Willem Borst, J.
Collinge, D.B.
Karpinski, S.
L yngkjaer, M.F.
Robatzek, S.
Kangasjarvi, J.
Wrzaczek, M.
Powiązania:
https://bibliotekanauki.pl/articles/79974.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
receptor-like kinase
cysteine
Arabidopsis
reactive oxygen species
stress response
signalling
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

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