Inhibitory Effect of 4-Cyanobenzaldehyde and 4-Cyanobenzoic Acid on Mushroom (Agaricus bisporus) Tyrosinase

2003 ◽  
Vol 22 (7/8) ◽  
pp. 607-612 ◽  
Author(s):  
Qiao Chen ◽  
Qing-Xi Chen ◽  
Ling Qiu ◽  
Kang-Kang Song ◽  
Huang Huang
Keyword(s):  
Agaricus Bisporus ◽  
Inhibitory Effect

Inhibitory effect of melanins from Agaricus bisporus polyphenol oxidase and two different substrates on carboxypeptidases A and B activity

2011 ◽  
Vol 233 (6) ◽  
pp. 1075-1079 ◽  
Author(s):  
Víctor Falguera ◽  
Oriol Miarnau ◽  
Jordi Pagán ◽  
Albert Ibarz
Keyword(s):  
Polyphenol Oxidase ◽  
Agaricus Bisporus ◽  
Inhibitory Effect

scholarly journals Substrate specifity and inhibitors of polyphenol oxidase in aspect of darkening of fresh and frozen mushrooms (Agaricus bisporus (Lange) Sing.)

2013 ◽  
Vol 47 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Janusz Czapski
Keyword(s):  
Benzoic Acid ◽  
Chlorogenic Acid ◽  
Polyphenol Oxidase ◽  
Fast Moving ◽  
Agaricus Bisporus ◽  
Inhibitory Effect ◽  
Michaelis Constant ◽  
Sodium Metabisulphite ◽  
Electrophoretic Patterns ◽  
Crude Preparation

Activity of mushroom polyphenol oxidase (PPO) toward 6 substrates and inhibitory effect of cysteine, 2-mercaptoethanol, benzoic acid and sodium metabisulphite were determined. The o-diphenols which appeared to be the best substrates were: catechin, DOPA (L-3,4-dihydro-xyphenylalanine) and chlorogcnic acid. Affinity of PPO crude preparation substrates to enzyme, expressed as inverse value of Michaelis constant was lower then affinity of catechol. Inhibitory effect depended on specifity of inhibitors and their concentration. Electrophoretic patterns of PPO of mushrooms reveals slow and fast moving 4 isoforms when DOPA was used as a substrate, 2 bands for catechin and chlorogenic acid while only one band showed activity toward tyrosine and p-cresol.

Properties of Isolated Mitochondria of Agaricus Bisporus: Their Relationship to Dormancy and the Germination of Spores

1973 ◽  
Vol 31 ◽  
pp. 458-459
Author(s):  
K. S. McCarty ◽  
R. F. Weave ◽  
L. Kemper ◽  
F. S. Vogel
Keyword(s):  
Mitochondrial Dna ◽  
Ethidium Bromide ◽  
Microscopic Examination ◽  
Agaricus Bisporus ◽  
Osmotic Shock ◽  
Electron Microscopic Examination ◽  
Electron Microscopic ◽  
Isolated Mitochondria ◽  
Dna Strands ◽  
Cytoplasmic Ribosomes

During the prodromal stages of sporulation in the Basidiomycete, Agaricus bisporus, mitochondria accumulate in the basidial cells, zygotes, in the gill tissues prior to entry of these mitochondria, together with two haploid nuclei and cytoplasmic ribosomes, into the exospores. The mitochondria contain prominent loci of DNA [Fig. 1]. A modified Kleinschmidt spread technique1 has been used to evaluate the DNA strands from purified whole mitochondria released by osmotic shock, mitochondrial DNA purified on CsCl gradients [density = 1.698 gms/cc], and DNA purified on ethidium bromide CsCl gradients. The DNA appeared as linear strands up to 25 u in length and circular forms 2.2-5.2 u in circumference. In specimens prepared by osmotic shock, many strands of DNA are apparently attached to membrane fragments [Fig. 2]. When mitochondria were ruptured in hypotonic sucrose and then fixed in glutaraldehyde, the ribosomes were released for electron microscopic examination.

Inhibitory effect of melatonin on nitric oxide synthase in rat enteric nervous system

2001 ◽  
Vol 120 (5) ◽  
pp. A176-A176
Author(s):  
P KOPPITZ ◽  
M STORR ◽  
D SAUR ◽  
M KURJAK ◽  
H ALLESCHER
Keyword(s):  
Nitric Oxide ◽  
Nervous System ◽  
Nitric Oxide Synthase ◽  
Enteric Nervous System ◽  
Inhibitory Effect ◽  
Oxide Synthase

Inhibitory effect of proton pump inhibitors against chemotaxis of Helicobacter pylori

2001 ◽  
Vol 120 (5) ◽  
pp. A655-A656
Author(s):  
H NAKAMURA ◽  
H YOSHIYAMA ◽  
H YANAI ◽  
M SHIRAL ◽  
T NAKAZAWA ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Proton Pump Inhibitors ◽  
Proton Pump ◽  
Inhibitory Effect

The Nature of the Inhibitory Effect of Normal Human Gastric Jiuice on Heidenhain Pouch Dogs

1958 ◽  
Vol 34 (2) ◽  
pp. 181-187 ◽  
Author(s):  
William O. Smith ◽  
Robert Hoke ◽  
Jerome Landy ◽  
Ranwel Caputto ◽  
Stewart Wolf
Keyword(s):  
Inhibitory Effect ◽  
Heidenhain Pouch ◽  
Normal Human

Inhibitory effect of Rhamnus alpinus and Rhamnus saxatilis extracts on chemokine secretion induced by lipopolysaccharide in monocyte-derived macrophages

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
F Epifano ◽  
L Menghini ◽  
A Chiavaroli ◽  
G Orlando ◽  
VD La ◽  
...  
Keyword(s):  
Inhibitory Effect
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