Cornstalk biochar promoted the denitrification performance and cellulose degradation rate of Burkholderia sp. CF6

2021 ◽  
pp. 106998
Author(s):  
Changlun Chen ◽  
Junfeng Su ◽  
Amjad Ali ◽  
Zhenyu Zhai
Keyword(s):  
Degradation Rate ◽  
Cellulose Degradation

scholarly journals Promotion of Biogasification Efficiency by Pretreatment and Bioaugmentation of Corn Straw with Microbial Consortium

2019 ◽  
Vol 118 ◽  
pp. 01032
Author(s):  
Qili Zhu ◽  
Yanwei Wang ◽  
Furong Tan ◽  
Bo Wu ◽  
Lichun Dai ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Surface Structure ◽  
Degradation Rate ◽  
Microbial Consortium ◽  
Biogas Production ◽  
Cellulose Degradation ◽  
Cellulase Activity ◽  
Corn Straw ◽  
Structure Characteristics ◽  
Anaerobic Microbial Consortium

To better understand the comparative effects between pretreatment and bioaugmentation methods on the promotion of corn straw biogasification efficiency, we analysed the cellulase activity, cellulose degradation rate, surface structure characteristics, and biogas production of corn straw that had been pretreated with aerobic microbial consortium (AMC). In addition, we also studied the effect of bioaugmentation using anaerobic microbial consortium (ANMC) on corn straw biogasification efficiency. The results from our study demonstrated that the cumulative methane generated from AMC and ANMC were 233.09 mL·g-1 VS and 242.56 mL·g-1 VS, which was increased compared to the control by 6.89% and 11.23%, respectively. We also observed that ANMC could also function to dramatically promote methane content during the anaerobic digestion of corn straw. This study demonstrated that AMC and ANMC were both able to promote the biogasification efficiency of corn straw, however, ANMC was found to perform better compared to AMC.

Effects of the Protein in Wheat Straw on Enzymatic Hydrolysis

2013 ◽  
Vol 690-693 ◽  
pp. 1198-1202 ◽  
Author(s):  
Hui Chen ◽  
Lian Jie Wang ◽  
Tao Zhang ◽  
Meng Yu ◽  
Xin Ming Wang
Keyword(s):  
Enzymatic Hydrolysis ◽  
Wheat Straw ◽  
Degradation Rate ◽  
Cellulose Degradation ◽  
Hydrolysis Time ◽  
Reaction Conditions ◽  
Orthogonal Experiments ◽  
Enzyme Dosage ◽  
Solid Liquid ◽  
Hydrolysis Of

The article used acid protease to remove the protein in wheat straw, and investigated the influence of wheat straw without the protein to enzymatic hydrolysis. By the single factor experiments, the cellulose degradation rate of wheat straw removed the protein was significantly higher than untreated, in the same conditions of enzymatic hydrolysis. It is shortening 24h of enzymatic hydrolysis time and reducing enzyme dosage 90mg/g. By the orthogonal experiments, the optimal reaction conditions for enzymatic hydrolysis of wheat straw with protein removed is the cellulase dosage 170mg, enzymatic time 56h, solid-liquid ratio 1:20, pH 4.8, the reaction temperature 50°C. Compared to the untreated, the cellulose degradation rate increased by 35.58%.

scholarly journals Study on physicochemical properties and microbial diversity of flammulina velutipes residue during rapid fermentation

2018 ◽  
Author(s):  
Guangying Shi ◽  
Yuxin Wang ◽  
Pingzhi Wang ◽  
Yizhu Gu
Keyword(s):  
Degradation Rate ◽  
Urease Activity ◽  
Cellulose Degradation ◽  
Cellulase Activity ◽  
High Water ◽  
Flammulina Velutipes ◽  
Corn Straw ◽  
Fermentation Time ◽  
Theoretical Support ◽  
Fermentation Parameters

AbstractIn order to investigate the effects of different mass ratios of corn straw, super absorbent resin (SAR) and cellulose decomposing strains on fermentation of flammulina velutipes residue, the cellulose degradation rate, germination index, bacterial diversity, urease activity, cellulase activity and other indicators were evaluated comprehensively so as to determine the optimal fermentation parameters. The research results indicated that the three factors of corn straw, high water-absorbent resin (SAR), and cellulose-decomposing strains have the tendency to enhance fermentation in the process. In the orthogonal test, the treatment with the highest cellulose degradation rate was T6. By 24 days, all the treated seeds germination Indices (GIs) were higher than 80%, which indicated that they were basically harmless to crops. The cellulase activity and urease activity of each treatment showed the characteristics of first rising and then decreasing as the fermentation time prolonged. In general, the T6 (the added amount of corn straw was 10%, the amount of super absorbent resin was 0.15%, and the amount of cellulose-decomposing strains was 2%) was the suitable mass ratio of additives in the fermentation which provided a certain theoretical support for resource utilization of flammulina velutipes residue.

Quantification of the export of cytokinins from roots to shoots of Rosa hybrida and their degradation rate in the shoot

1997 ◽  
Vol 101 (2) ◽  
pp. 347-352 ◽  
Author(s):  
Janneke A. Dieleman ◽  
Francel W. A. Verstappen ◽  
Rene R. J. Perik ◽  
Daan Kuiper
Keyword(s):  
Degradation Rate ◽  
Rosa Hybrida

Photo-catalytic degradation of gaseous pollutants in paper mills of southern China

TAPPI Journal ◽  
2018 ◽  
Vol 17 (03) ◽  
pp. 167-178 ◽  
Author(s):  
Xin Tong ◽  
Jiao Li ◽  
Jun Ma ◽  
Xiaoquan Chen ◽  
Wenhao Shen
Keyword(s):  
Degradation Rate ◽  
Southern China ◽  
Catalytic Degradation ◽  
Pulp And Paper ◽  
Gaseous Pollutants ◽  
Pulp And Paper Mills ◽  
Paper Mills ◽  
Initial Concentration ◽  
First Order ◽  
First Order Kinetics

Studies were undertaken to evaluate gaseous pollutants in workplace air within pulp and paper mills and to consider the effectiveness of photo-catalytic treatment of this air. Ambient air at 30 sampling sites in five pulp and paper mills of southern China were sampled and analyzed. The results revealed that formaldehyde and various benzene-based molecules were the main gaseous pollutants at these five mills. A photo-catalytic reactor system with titanium dioxide (TiO2) was developed and evaluated for degradation of formaldehyde, benzene and their mixtures. The experimental results demonstrated that both formaldehyde and benzene in their pure forms could be completely photo-catalytic degraded, though the degradation of benzene was much more difficult than that for formaldehyde. Study of the photo-catalytic degradation kinetics revealed that the degradation rate of formaldehyde increased with initial concentration fitting a first-order kinetics reaction. In contrast, the degradation rate of benzene had no relationship with initial concentration and degradation did not conform to first-order kinetics. The photo-catalytic degradation of formaldehyde-benzene mixtures indicated that formaldehyde behaved differently than when treated in its pure form. The degradation time was two times longer and the kinetics did not reflect a first-order reaction. The degradation of benzene was similar in both pure form and when mixed with formaldehyde.

Analysis of alginate implants degradation rate in rat myocardium

2014 ◽  
Vol 24 (2) ◽  
pp. 173-173
Author(s):  
Tatyana V. Shkand ◽  
◽  
Anatoliy L. Tatarets ◽  
Keyword(s):  
Degradation Rate ◽  
Rat Myocardium

DEGRADATION RATE OF LIMED SEWAGE SLUDGE IN AN AGRICULTURAL SOIL

2019 ◽  
Vol 18 (5) ◽  
pp. 1049-1055
Author(s):  
Antonio Matos ◽  
Isabela Diniz ◽  
Mateus Matos ◽  
Alisson Borges ◽  
Adriana Wilken
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soil ◽  
Degradation Rate

Authentication of the Ancient Easel / Paintings Through Materials Identification from the Polychrome Layers II. Analysis by Means of the FT-IR Spectrophotometry

2008 ◽  
Vol 59 (4) ◽  
Author(s):  
Irina Crina Anca Sandu ◽  
Constantin Luca ◽  
Ion Sandu ◽  
Viorica Vasilache ◽  
Mikiko Hayashi
Keyword(s):  
Degradation Rate ◽  
Animal Glue ◽  
Painting Materials ◽  
Ageing Rate ◽  
Ir Spectrophotometry ◽  
Private And Public ◽  
Ft Ir

This is the second paper belonging to a study concerning the authentication of ancient easel-paintings, on canvas and wood support, from private and public collections, by using the FT-IR spectrophotometry technique for the analysis of the painting materials. Different pigments, egg binders, caseins and animal glue, often found in ancient easel-paintings on wood or canvas, have been used as standards for establishing the ageing rate of the paintings by correlation with the dates presented in the first note. The determination of the degradation rate of the painting materials is an important archaeometric characteristic used in authentication.

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