Preparation and characterization of fermented dandelion (Taraxacum officinale) beverage using Lactobacillus acidophilus F46 having cinnamoyl esterase activity

2015 ◽  
Vol 24 (2) ◽  
pp. 583-593 ◽  
Author(s):  
Jong-Hui Kim ◽  
Sang-Ho Baik
Keyword(s):  
Lactobacillus Acidophilus ◽  
Esterase Activity ◽  
Taraxacum Officinale ◽  
Cinnamoyl Esterase

Isolation and characterization of a Clostridium sp. with cinnamoyl esterase activity and unusual cell envelope ultrastructure

1999 ◽  
Vol 172 (3) ◽  
pp. 139-149 ◽  
Author(s):  
C. S. McSweeney ◽  
Amanda Dulieu ◽  
Richard I. Webb ◽  
Therese Del Dot ◽  
Linda L. Blackall
Keyword(s):  
Esterase Activity ◽  
Cell Envelope ◽  
Isolation And Characterization ◽  
Cinnamoyl Esterase

Characterization of immunostimulatory activities of fractions obtained from Taraxacum officinale

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
J Kim ◽  
G Choi ◽  
H Hwang ◽  
H Ku ◽  
C Choi ◽  
...  
Keyword(s):  
Taraxacum Officinale

scholarly journals Characterization of natural isolate Lactobacillus acidophilus BGRA43 useful for acidophilus milk production

1998 ◽  
Vol 84 (4) ◽  
pp. 593-599 ◽  
Author(s):  
A. Banina ◽  
M. Vukasinovic ◽  
S. Brankovic ◽  
D. Fira ◽  
M. Kojic ◽  
...  
Keyword(s):  
Milk Production ◽  
Lactobacillus Acidophilus ◽  
Natural Isolate

Sinapine Esterase I. Characterization of Sinapine Esterase from Cotyledons of Raphanus sativus

1979 ◽  
Vol 34 (9-10) ◽  
pp. 715-720 ◽  
Author(s):  
Gerhild Nurmann ◽  
Dieter Strack
Keyword(s):  
Enzyme Activity ◽  
Esterase Activity ◽  
Raphanus Sativus ◽  
Sinapic Acid ◽  
Inhibitory Effect ◽  
Ph Optimum ◽  
Diisopropyl Fluorophosphate ◽  
E 600 ◽  
Red Radish

Abstract From cotyledons of Raphanus sativus (red radish) an esterase activity which catalyzes the hy­drolysis of sinapine into sinapic acid and choline has been isolated. The enzyme, which has a near absolute specificity, is not analogous with any esterase described in the literature. The reaction has a pH optimum of 8.5 and the apparent Km is 1.95 × 10-5 m. The enzyme is relatively insensi­tive to both physostigmine (eserine) {Ki = 1.73 × 10-4 m) and neostigmine (Ki = 2 .1 3 × 10-4 ᴍ). Diisopropyl fluorophosphate (DFP) showed no inhibition and diethyl p-nitrophenylphosphate (E 600) only a slight inhibitory effect at 10-5 ᴍ, respectively. Choline (10-2 ᴍ) was inhibitory but acetylcholine (10-2 ᴍ) stimulated the enzyme activity.

scholarly journals Biochemical Characterization of Phenylacetaldehyde Dehydrogenases from Styrene-degrading Soil Bacteria

2020 ◽  
Author(s):  
Juliane Zimmerling ◽  
Michel Oelschlägel ◽  
Carolin Großmann ◽  
Matthias Voitel ◽  
Michael Schlömann ◽  
...  
Keyword(s):  
Esterase Activity ◽  
Soil Bacteria ◽  
Biochemical Characterization ◽  
Specific Activity ◽  
Aldehyde Dehydrogenases ◽  
Long Term Stability ◽  
Almost All ◽  
Different Characteristics

Abstract Four phenylacetaldehyde dehydrogenases (designated as FeaB or StyD) originating from styrene-degrading soil bacteria were biochemically investigated. In this study, we focused on the Michaelis-Menten kinetics towards the presumed native substrate phenylacetaldehyde and the obviously preferred co-substrate NAD+. Furthermore, the substrate specificity on four substituted phenylacetaldehydes and the co-substrate preference were studied. Moreover, these enzymes were characterized with respect to their temperature as well as long-term stability. Since aldehyde dehydrogenases are known to show often dehydrogenase as well as esterase activity, we tested this capacity, too. Almost all results showed clearly different characteristics between the FeaB and StyD enzymes. Furthermore, FeaB from Sphingopyxis fribergensis Kp5.2 turned out to be the most active enzyme with an apparent specific activity of 17.8 ± 2.1 U mg-1. Compared with that, both StyDs showed only activities less than 0.2 U mg-1 except the overwhelming esterase activity of StyD-CWB2 (1.4 ± 0.1 U mg-1). The clustering of both FeaB and StyD enzymes with respect to their characteristics could also be mirrored in the phylogenetic analysis of twelve dehydrogenases originating from different soil bacteria.

Microbiological Characterization of Human Milk1

1977 ◽  
Vol 40 (9) ◽  
pp. 614-616 ◽  
Author(s):  
A. GAVIN ◽  
K. OSTOVAR
Keyword(s):  
Staphylococcus Aureus ◽  
Breast Feeding ◽  
Staphylococcus Epidermidis ◽  
Lactobacillus Acidophilus ◽  
Bacterial Population ◽  
Streptococcus Salivarius ◽  
Streptococcus Mitis ◽  
Bacterial Populations ◽  
Milk Samples

Milk samples of five breast-feeding mothers were studied for bacterial population, flora, and source. In most instances, samples taken at postfeeding contained higher bacterial populations than prefeeding samples. Staphylococcus epidermidis was the predominant organism isolated from 100% of the samples. Increases were noticed in the appearance of Streptococcus mitis, Gaffkya tetragena, Streptococcus salivarius, Staphylococcus aureus, as well as Lactobacillus acidophilus, in the postfeeding samples. Main sources of bacteria were found to be the infant's mouth and maternal skin.

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