Effect of tannic acid concentration on development of the western treehole mosquito,Aedes sierrensis (Diptera: Culicidae)

1993 ◽  
Vol 19 (6) ◽  
pp. 1119-1127 ◽  
Author(s):  
David R. Mercer
Keyword(s):  
Acid Concentration ◽  
Tannic Acid ◽  
Treehole Mosquito ◽  
Aedes Sierrensis

GEOGRAPHIC DIFFERENTIATION IN THE DEVELOPMENT OF AEDES SIERRENSIS (DIPTERA: CULICIDAE) IN NATURE

1980 ◽  
Vol 112 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Robert G. Jordan
Keyword(s):  
Laboratory Data ◽  
Fourth Instar ◽  
Geographic Differentiation ◽  
Critical Photoperiod ◽  
Geographic Populations ◽  
Treehole Mosquito ◽  
Aedes Sierrensis

AbstractThe critical photoperiod for fourth instar diapause of the western treehole mosquito, Aedes sierrensis, varies among geographic populations. When reared together in the field at different latitudes, larvae from northern (ca. 45°N), central (ca. 39°N), and southern (ca. 33°N) populations all develop more rapidly through the early instars at more southerly latitudes. The order of pupation dates among the populations, however, depends on their critical photoperiods, and can be predicted from laboratory data on photoperiodism.

scholarly journals Concomitant yield optimization of tannase and gallic acid by Bacillus licheniformis KBR6 through submerged fermentation: An industrial approach

2021 ◽  
Vol 64 (2) ◽  
pp. 151-158
Author(s):  
Pradeep K. Das Mohapatra ◽  
Ishita Biswas ◽  
Keshab C. Mondal ◽  
Bikas R. Pati
Keyword(s):  
Gallic Acid ◽  
Production Rate ◽  
Acid Concentration ◽  
Tannic Acid ◽  
Bacillus Licheniformis ◽  
Environmental Conditions ◽  
Submerged Fermentation ◽  
Acid Production ◽  
Yield Coefficient ◽  
Acid Yield

The present study is concerned with the evaluation of tannase and gallic acid production efficacy of Bacillus licheniformis KBR6 under different environmental conditions through submerged fermentation. Results have shown that different environmental conditions and mineral sources have differential influences on tannase and gallic acid production. Highest tannase and gallic acid yield was observed at incubation period of 18 h and 22 h, respectively. At tannic acid concentration of 15 g/l, maximum cell mass (0.75 g/l), cell yield coefficient (0.08 g/g), specific growth rate (37.5 mg/g/h), tannase yield (16.3 U/g) and specific tannase production rate (0.80 U/g/h) were observed, however, at higher tannic acid concentration a decrease in tannase yield and production rate were observed, but gallic acid production increased with increasing tannic acid concentration. Additional carbohydrate sources like glucose, fructose, and lactose showed positive influence on enzyme yield. Among the studied nitrogen sources urea and NH4Cl, and of the phosphate sources KH2PO4 showed favourable effects on cell growth and simultaneous enzyme and gallic acid production. Temperature of 35 °C was found to be optimum for tannase and gallic acid production. Of all the studied metal ions Ca2+, Mg2+ and Na+ showed positive effect whereas, Co2+, Ag2+, Pb2+, Hg2+ showed inhibitory effects.

Pathogenicity of fungi isolated from field-collected larvae of the western treehole mosquito, Aedes sierrensis (Diptera: Culicidae)

1988 ◽  
Vol 52 (2) ◽  
pp. 360-363 ◽  
Author(s):  
Gary A. Saunders ◽  
Jan O. Washburn ◽  
David E. Egerter ◽  
John R. Anderson
Keyword(s):  
Treehole Mosquito ◽  
Aedes Sierrensis

Detection of Real-Time Tannic Acid Concentration Based-on Quasi-Static Centrifugal-and-Fluorescence Microfluid Technology

2013 ◽  
Vol 19 (9) ◽  
pp. 2639-2642
Author(s):  
Hsing-Cheng Chang ◽  
Ya-Hui Chen ◽  
Jung-Chih Lin ◽  
San-Shan Hung ◽  
Chun-Han Li ◽  
...  
Keyword(s):  
Real Time ◽  
Acid Concentration ◽  
Tannic Acid

Influences of Tannic Acid Concentration on Properties of Micro-Arc Coatings Formed on AZ91 Magnesium Alloys

2012 ◽  
Vol 182-183 ◽  
pp. 297-301
Author(s):  
Shu Fang Zhang ◽  
Rong Fa Zhang ◽  
Tao Wang ◽  
Shun Shun Yao ◽  
Zhi Hua Chen
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloys ◽  
Acid Concentration ◽  
Tannic Acid ◽  
Coating Properties ◽  
Micro Arc Oxidation ◽  
Az91 Magnesium ◽  
Solution Conductivity ◽  
Coating Color

Anodic coatings were prepared by micro-arc oxidation on AZ91 magnesium alloys with the addition of 0-8 g/L tannic acid. The influences of tannic acid concentration on the conductivity and coating properties were studied. The result shows that with the increase of tannic acid concentration, the solution conductivity decreases and the coating color becomes dark. In the solution with 4 g/L tannic acid, the obtained coatings are the most uniform and achieve the best corrosion resistance.

scholarly journals Development and Preliminary Assessment of Hemoperfusion Cartridge with Tannic Acid for Toxic Proteins’ Precipitation: An In Vitro Model

2016 ◽  
Vol 02 ◽  
pp. 62 ◽  
Author(s):  
Valquíria Miwa Hanai Yoshida ◽  
Roberta Lima Cavalcante ◽  
Jessica Campanholi ◽  
Élvio Franco de Camargo Aranha ◽  
Maximilian Estevan Oliveira ◽  
...  
Keyword(s):  
Acid Concentration ◽  
Tannic Acid ◽  
In Vitro Model ◽  
Serum Proteins ◽  
The Body ◽  
Total Serum ◽  
Sheep Blood ◽  
Vitro Model ◽  
Toxic Proteins

Charcoal hemoperfusion (CHP) is one of the extracorporeal removal techniques that are used to remove toxins from the body. CHP generally is considered the preferred method for extracorporeal extraction of several toxins—toxins that are adsorbed by activated charcoal. Assessments of the tannic acid’s protective effects on ophidian poisoning are associated with the toxic proteins’ precipitation by tannic acid. The challenge in treating a snakebite lies in removing the injected poison with minimal damage to blood constituent proteins. An alternative is CHP, and this investigation proposed to develop a column for hemoperfuser cartridge, combining charcoal granules trapped between layers of polymeric material conjugated to tannic acid, using an in vitro model scaled to the Wistar rat, which can be tested in an animal model. The cartridge was evaluated using the 22full factorial design, in duplicate, as a method to study the effects of granulated-charcoal size and tannic acid concentration on the hematologic profile (platelet and leukocyte counts) and biochemical profile (total serum protein and albumin dosages) of sheep blood. The results demonstrate that charcoal in hemoperfuser cartridge: (1) decreases the serum in sheep blood volume, as consequence, (2) increases the serum proteins’ concentration, and (iii) exerts slight influence on albumin. The inclusion of tannic acid in hemoperfuser column precipitates some of serum proteins and albumin, decreasing their concentrations in the plasma serum. In conclusion, based on these effects we can suggest the use of 0.02 g tannic acid concentration and 8–20 mesh granulated charcoal in hemoperfuser cartridge for precipitating toxic proteins from snake venoms.

scholarly journals New distribution records and range extensions of mosquitoes in British Columbia and the Yukon Territory

2020 ◽  
Author(s):  
Daniel AH. Peach ◽  
Lisa M. Poirier
Keyword(s):  
British Columbia ◽  
First Record ◽  
Yukon Territory ◽  
Coquillettidia Perturbans ◽  
The Common ◽  
Treehole Mosquito ◽  
Aedes Sierrensis ◽  
Common House ◽  
New Distribution ◽  
Culiseta Incidens

AbstractWe report the first records of Aedes euedes Howard, Dyar, and Knab, and Coquillettidia perturbans (Walker) from Canada’s Yukon Territory, and the first record of Ae. decticus Howard, Dyar, and Knab from British Columbia. We also report range extensions in northern BC for the western treehole mosquito, Aedes sierrensis (Ludlow), the common house mosquito, Culex pipiens L., and the cool weather mosquito Culiseta incidens (Thomson).

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