Phenoxazinones by oxidative dimerization of aminophenols

1968 ◽  
Vol 46 (5) ◽  
pp. 790-792 ◽  
Author(s):  
Nancy N. Gerber
Keyword(s):  
Thin Layer ◽  
Shake Flask ◽  
Oxidative Dimerization ◽  
Pycnoporus Cinnabarinus ◽  
Shake Flask Fermentation

Several 2-amino-3H-phenoxazin-3-ones, including cinnabarin, were obtained from the appropriate o-aminophenols by oxidative dimerization on thin-layer plates in air. Shake-flask fermentation of Pycnoporus cinnabarinus also gave cinnabarin.

High-yield shake-flask fermentation of xylose to ethanol

1994 ◽  
Vol 45-46 (1) ◽  
pp. 509-514 ◽  
Author(s):  
Brian L. Boynton ◽  
James D. McMillan
Keyword(s):  
Shake Flask ◽  
High Yield ◽  
Shake Flask Fermentation

Isolation and Preliminary Identification of Cellulose-Decomposing Microorganisms Form Bamboo Forest

2014 ◽  
Vol 1070-1072 ◽  
pp. 121-125
Author(s):  
Yu Jian Jiang ◽  
Xue Jun Yu ◽  
Xin Xin Li
Keyword(s):  
Growth Rate ◽  
Enzyme Activity ◽  
Filter Paper ◽  
Shake Flask ◽  
Morphological Observation ◽  
Bamboo Forest ◽  
Activity Assay ◽  
Enzyme Activity Assay ◽  
Preliminary Identification ◽  
Shake Flask Fermentation

For the conversion of cellulose into biofuel by microorganisms is being studied intensively. This research isolate and screen efficient cellulolytic microorganism from bamboo forest soil based on growth rate on CMC plate, the size of transparent circle, disintegration effect of filter paper, and CMC enzyme activity assay. As a result, efficient cellulose-decomposing fungus J6-1 was obtained. The strains possessed higher filter paper degrading ability and CMC enzyme activity, disintegrating the filter paper into 42.3% at the 5th days and reaching the highest CMC enzyme activity 6.87IU/mL after 120 hours of shake flask fermentation. Strains J6-1 is preliminarily identified asPenicilliumby morphological observation and a great potential cellulolytic strains.

Improvement of Shake Flask Fermentation Conditions for the Pseudomonas Strain N1

2011 ◽  
Vol 340 ◽  
pp. 305-310
Author(s):  
Wen Yi Zhang ◽  
Rong Chen ◽  
Li Qiao Lu ◽  
Xia Xu ◽  
Suo Hua Wu
Keyword(s):  
Shake Flask ◽  
Culture Medium ◽  
Ph Value ◽  
Cell Concentration ◽  
Sodium Succinate ◽  
Simultaneous Nitrification And Denitrification ◽  
Fermentation Conditions ◽  
Initial Ph ◽  
The Common ◽  
Shake Flask Fermentation

To improve the yield of the Pseudomonas strain N1 in the fermentation culture medium screened from the biofilm of BAF reactor, the optimal shake flask fermentation conditions for Pseudomonas N1 were determined by single factor test and orthogonal test. The composition of optimal fermentation culture medium was as follows: nitrate of potash of 4 g/L, sodium succinate of 26.1 g/L, KH2PO4 of 4.0 g/L, MgSO4·7H2O of 1 g/L, KCl of 1 g/L. The cell concen- tration could reach 9.08 g/L under the conditions. Fermentation was performed for 36h in a 250ml shake flask containing 70mL medium at 1% inoculums volume and initial pH value 7.0. The cell concentration could reach 12.86 g/L which was 2.5 fold higher than that under the original conditions. Simultaneous nitrification and denitrification could be achieved to alleviate the pollution of nitrogen in the wastewater by adding the microbial inoculums into the common aerobic nitrifica- tion sludge.

Screening for distinct xylan degrading enzymes in complex shake flask fermentation supernatants

2011 ◽  
Vol 102 (10) ◽  
pp. 6039-6047 ◽  
Author(s):  
M.P. Van Gool ◽  
I. Vancsó ◽  
H.A. Schols ◽  
K. Toth ◽  
G. Szakacs ◽  
...  
Keyword(s):  
Shake Flask ◽  
Degrading Enzymes ◽  
Shake Flask Fermentation

scholarly journals Improved Mannanase Production from Penicillium occitanis by Fed-Batch Fermentation Using Acacia Seeds

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Monia Blibech ◽  
Raoudha Ellouz Ghorbel ◽  
Fatma Chaari ◽  
Ilyes Dammak ◽  
Fatma Bhiri ◽  
...  
Keyword(s):  
Batch Fermentation ◽  
Shake Flask ◽  
Fold Increase ◽  
Batch Cultivation ◽  
Fed Batch ◽  
Fed Batch Fermentation ◽  
Culture Process ◽  
Coconut Meal ◽  
Penicillium Occitanis ◽  
Shake Flask Fermentation

By applying a fed-batch strategy, production of Penicillium occitanis mannanases could be almost doubled as compared to a batch cultivation on acacia seeds (76 versus 41 U/mL). Also, a 10-fold increase of enzyme activities was observed from shake flask fermentation to the fed-batch fermentation. These production levels were 3-fold higher than those obtained on coconut meal. The high mannanase production using acacia seeds powder as inducer substrate showed the suitability of this culture process for industrial-scale development.

Applications of Photoelectron Microscopy

1976 ◽  
Vol 34 ◽  
pp. 506-507
Author(s):  
William J. Baxter
Keyword(s):  
Electron Microscopy ◽  
Thermal Decomposition ◽  
Chemical Composition ◽  
Ultraviolet Radiation ◽  
Thin Layer ◽  
Edge Effects ◽  
Electron Optics ◽  
Surface Layers ◽  
Crystalline Orientation ◽  
Fluorescent Screen

In this form of electron microscopy, photoelectrons emitted from a metal by ultraviolet radiation are accelerated and imaged onto a fluorescent screen by conventional electron optics. image contrast is determined by spatial variations in the intensity of the photoemission. The dominant source of contrast is due to changes in the photoelectric work function, between surfaces of different crystalline orientation, or different chemical composition. Topographical variations produce a relatively weak contrast due to shadowing and edge effects.Since the photoelectrons originate from the surface layers (e.g. ∼5-10 nm for metals), photoelectron microscopy is surface sensitive. Thus to see the microstructure of a metal the thin layer (∼3 nm) of surface oxide must be removed, either by ion bombardment or by thermal decomposition in the vacuum of the microscope.

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