scholarly journals PLASMA-CHEMICAL METHOD OF GRAIN FUNGAL CONTAMINATION CONTROL

2020 ◽  
pp. 127-130
Author(s):  
G.V. Taran ◽  
S.G. Pugach ◽  
A.A. Zamuriev ◽  
P.O. Opalev ◽  
M.O. Yaroshenko
Keyword(s):  
Aspergillus Flavus ◽  
Large Scale ◽  
Grain Storage ◽  
Wheat Grain ◽  
Fungal Contamination ◽  
Penicillium Verrucosum ◽  
Storage Unit ◽  
Contamination Control ◽  
Penicillium Nordicum ◽  
Maize Grain

The experimental results on the effect of grain treatment with ozone-air mixture on the level of artificial grain contamination with micromycetes are presented. The contamination dynamics for 1000 kg of wheat grain contaminated with Penicillium nordicum and Aspergillus flavus and stored in the prototype grain storage unit in ozone environment for 6 months is shown. The study on the effect of ozone on the growth inhibition of Aspergillus flavus for maize grain and Penicillium verrucosum for wheat grain in a 100 dm3 silo is presented. The effect of ozone on the content of aflatoxins in maize grain additionally contaminated with Aspergillus flavus is studied. The efficiency of ozone technologies for large-scale grain storage, as well as for reducing fungal contamination and controlling mycotoxin content in food grains, is shown.

scholarly journals Microbiological Control of Flour-Manufacture: Dissemination of Mycotoxins Producing Fungi in Cereal Products

2010 ◽  
Vol 3 ◽  
pp. MBI.S3822 ◽  
Author(s):  
T.D. Doolotkeldieva
Keyword(s):  
Aspergillus Flavus ◽  
First Grade ◽  
Aspergillus Ochraceus ◽  
High Grade ◽  
Wheat Grain ◽  
Fungal Contamination ◽  
Cereal Products ◽  
Daily Food ◽  
Stored Grains ◽  
Microbiological Control

Wheat grain and its products are widely consumed as fodder and basic daily food stuffs in Kyrgyzstan. Mycobiota is known to produce hazardous effects to a consumer since it produces mycotoxins. Henceforth, mycobiota starting from the field stage to flour, grain and flour samples were selected for mycological analysis from eight sites of flour manufacture: grain stored in storehouses before milling, mechanically cleaned grain, washed grain, grain dried and prepared for mill, roughly-milled flour, first grade flour and high grade flour. The samples were analyzed using classical mycological and immunoassay methods in order to detect mycotoxins producing fungi species. We isolated overall 27 species belonging to 7 genera. Mycotoxins producing species like Aspergillus flavus, Aspergillus ochraceus and Penicillium cyclopium were detected in the stored grains and in mechanically-cleaned grains. The species of Penicillium, Alternaria and Fusarium genera dominated in roughly-milled flour samples, so this site of flour manufacture still has a risk and danger of contamination with mycotoxins producing fungus. Only the final product i.e. the high grade flour lacked any fungal contamination. We recommend to scrutinize flour samples at the last stages of processing, particularly in the mills like B1, C1 and C4.

Research and Develop on Static Frequency Converter of Pumped Storage Power Plant

2012 ◽  
Vol 608-609 ◽  
pp. 1120-1126 ◽  
Author(s):  
De Shun Wang ◽  
Bo Yang ◽  
Lian Tao Ji
Keyword(s):  
Power Plant ◽  
Control Strategy ◽  
Large Scale ◽  
Frequency Converter ◽  
Position Estimation ◽  
Position Sensor ◽  
Storage Unit ◽  
Rotor Position ◽  
Start Up ◽  
Pumped Storage

A static frequency converter start-up control strategy for pumped-storage power unit is presented. And rotor position detecting without position sensor is realized according to voltage and magnetism equations of ideal synchronous motor mathematics model. The mechanism and implementation method of initial rotor position determination and rotor position estimation under low frequency without position sensor are expounded and validated by simulations. Based on the mentioned control strategy, first set of a static frequency converter start-up device in China for large-scale pumped-storage unit is developed, which is applied to start-up control test in the 90 MW generator/motor of Panjiakou Pumped-storage Power Plant. Test results show that rotor position detecting, pulse commutation, natural commutation, and unit synchronous procedure control of static start-up are all proved. The outcomes have been applied in running equipment, which proves the feasibility of mentioned method.

Transcriptional and metabolic alternations rebalance wheat grain storage protein accumulation under variable nitrogen and sulfur supply

2015 ◽  
Vol 83 (2) ◽  
pp. 326-343 ◽  
Author(s):  
Zhanwu Dai ◽  
Anne Plessis ◽  
Jonathan Vincent ◽  
Nathalie Duchateau ◽  
Alicia Besson ◽  
...  
Keyword(s):  
Storage Protein ◽  
Grain Storage ◽  
Protein Accumulation ◽  
Wheat Grain ◽  
Sulfur Supply

Bacillus thuringiensis distribution in soils of the United States

1981 ◽  
Vol 27 (9) ◽  
pp. 865-870 ◽  
Author(s):  
Anthony J. DeLucca II ◽  
Janet G. Simonson ◽  
A. D. Larson
Keyword(s):  
United States ◽  
Bacillus Thuringiensis ◽  
Large Scale ◽  
The United States ◽  
Grain Storage ◽  
Strong Indication ◽  
Experimental Plots

During a 2-year study, samples of various types of soils were collected from 115 fields that had not previously been treated with Bacillus thuringiensis and which were remote from any large-scale aggregations of lepidopterous insects in rearing or grain-storage areas. An average of about 400 isolates were examined from each soil, and, of 46 373 isolates examined, only 250 (0.5%) were identified as B. thuringiensis. While it was almost impossible to insure that a field had never been treated with B. thuringiensis or that drift from some nearby application had not reached the field, it is noteworthy that of the 250 isolates, 156 (62.4%) were not var. kurstaki, the only variety that has been used commercially in the United States in about 10 years. This is a strong indication that the B. thuringiensis isolates observed were present naturally. To verify the procedures used, samples were taken from two adjacent experimental plots which had been treated about 12 months previously with formulations of var. kurstaki and var. galleriae, respectively. With practically no exception, the variety recovered from each plot was the variety applied, indicating that the varietal status of B. thuringiensis is stable in the soil.

Studies on the application of bio-carbon dioxide as controlled atmosphere on pest management in wheat grain storage

2022 ◽  
Vol 95 ◽  
pp. 101911
Author(s):  
Himanshu Kumar ◽  
Virendra K. Vijay ◽  
Paruchuri M.V. Subbarao ◽  
Ram Chandra
Keyword(s):  
Carbon Dioxide ◽  
Pest Management ◽  
Grain Storage ◽  
Controlled Atmosphere ◽  
Wheat Grain

Wheat grain storage at moisture milling: Control of protein quality and bakery performance

2019 ◽  
Vol 43 (7) ◽  
Author(s):  
Volnei Luiz Meneghetti ◽  
Ricardo Scherer Pohndorf ◽  
Bárbara Biduski ◽  
Elessandra da Rosa Zavareze ◽  
Luiz Carlos Gutkoski ◽  
...  
Keyword(s):  
Protein Quality ◽  
Grain Storage ◽  
Wheat Grain

scholarly journals The Atoxigenic Biocontrol Product Aflasafe SN01 Is a Valuable Tool to Mitigate Aflatoxin Contamination of Both Maize and Groundnut Cultivated in Senegal

Plant Disease ◽  
2020 ◽  
Vol 104 (2) ◽  
pp. 510-520 ◽  
Author(s):  
L. A. Senghor ◽  
A. Ortega-Beltran ◽  
J. Atehnkeng ◽  
K. A. Callicott ◽  
P. J. Cotty ◽  
...  
Keyword(s):  
Open Access ◽  
Aspergillus Flavus ◽  
Large Scale ◽  
International Markets ◽  
Economic Benefits ◽  
Aflatoxin Contamination ◽  
Active Ingredients ◽  
Aflatoxin Content ◽  
Open Access Article ◽  
Aspergillus Section

Aflatoxin contamination of groundnut and maize infected by Aspergillus section Flavi fungi is common throughout Senegal. The use of biocontrol products containing atoxigenic Aspergillus flavus strains to reduce crop aflatoxin content has been successful in several regions, but no such products are available in Senegal. The biocontrol product Aflasafe SN01 was developed for use in Senegal. The four active ingredients of Aflasafe SN01 are atoxigenic A. flavus genotypes native to Senegal and distinct from active ingredients used in other biocontrol products. Efficacy tests on groundnut and maize in farmers’ fields were carried out in Senegal during the course of 5 years. Active ingredients were monitored with vegetative compatibility analyses. Significant (P < 0.05) displacement of aflatoxin producers occurred in all years, districts, and crops. In addition, crops from Aflasafe SN01-treated fields contained significantly (P < 0.05) fewer aflatoxins both at harvest and after storage. Most crops from treated fields contained aflatoxin concentrations permissible in both local and international markets. Results suggest that Aflasafe SN01 is an effective tool for aflatoxin mitigation in groundnut and maize. Large-scale use of Aflasafe SN01 should provide health, trade, and economic benefits for Senegal. [Formula: see text] Copyright © 2020 The Author(s). This is an open access article distributed under the CC BY 4.0 International license .

Sign in / Sign up

Export Citation Format

Share Document