scholarly journals Efficiency of gamma radiation and ozonation against Sitotroga cerealella stages (Gelechiidae:Lepidoptera) infesting stored wheat grains and their effect on wheat quality

2017 ◽  
Vol 10 (6) ◽  
pp. 143-152
Author(s):  
Abd El-Aziz Abd El-Aziz ◽  
Hassan Hussain ◽  
Rasha Zinhoum
Keyword(s):  
Gamma Radiation ◽  
Sitotroga Cerealella ◽  
Wheat Quality ◽  
Wheat Grains ◽  
Stored Wheat

scholarly journals Residual Estimation of Isoproturon, Atrazine and Grain Protectants in Stored Wheat Grains

2015 ◽  
Vol 2 (3) ◽  
pp. 09-28
Author(s):  
M.Tariq ◽  
S.Bushra ◽  
Mansoor-ul-Hassan ◽  
U.Maqbool ◽  
M.R.Asi ◽  
...  
Keyword(s):  
Wheat Grains ◽  
Stored Wheat ◽  
Grain Protectants

scholarly journals An Evaluation of the Fungi Isolated from Sub-epidermal Region of Post-harvested Stored Wheat Grains

1970 ◽  
Vol 1 (1) ◽  
pp. 9-13
Author(s):  
Shiju Mathew ◽  
George Thomas ◽  
Tufail Ahmad
Keyword(s):  
Alternaria Alternata ◽  
Seed Viability ◽  
Wheat Grains ◽  
Stored Wheat ◽  
Post Harvest ◽  
Key Words Wheat ◽  
Wide Range ◽  
Kernel Discoloration ◽  
Food Value ◽  
Grain Losses

The criteria of wheat quality are as varied as their different uses. Wheat, which is suitable for a particular use / product, may have certain characters that make it entirely unsatisfactory for other purposes. The storage fungi damage the grains in several ways; they reduce the germinability, produce undesirable odor and kernel discoloration, decrease the food value and also produce toxins injurious to the health of consumers. The sub-epidermal mycoflora of stored wheat grains predominantly consisted of ubiquitous mould genera Aspergillus, Alternaria and Penicillium possibly because of their omnipresence, capacity to grow on all possible substrates and a wide range of temperature and humidity. The most frequent species observed in the stored wheat grains of Aspergillus were A. niger and A. fumigates, Alternaria alternata and Pencillium citrinum. Among these the frequency of Alternaria alternata was highest which has the capacity to produce mycotoxin which can contaminate and cause spoilage. The grain losses found in quantity and quality; can be in the form of depletion in seed viability, hardness, color, size and shape, grain weight and various biochemical parameters viz., protein, carbohydrate and vitamins under post harvest storages. Key words: wheat; post-harvest; storage; sub-epidermal fungi and spoilage. Nepal Journal of Biotechnology. Jan. 2011, Vol. 1, No. 1 : 9-13

scholarly journals Analysis of Stored Wheat Grain-Associated Microbiota Reveals Biocontrol Activity among Microorganisms against Mycotoxigenic Fungi

2021 ◽  
Vol 7 (9) ◽  
pp. 781
Author(s):  
Manoj Kumar Solanki ◽  
Ahmed Abdelfattah ◽  
Sudharsan Sadhasivam ◽  
Varda Zakin ◽  
Michael Wisniewski ◽  
...  
Keyword(s):  
Fungal Pathogens ◽  
Seed Quality ◽  
Bacterial Species ◽  
Rhodotorula Glutinis ◽  
Amplicon Sequencing ◽  
Wheat Grain ◽  
Wheat Grains ◽  
Stored Wheat ◽  
Antagonistic Microorganisms ◽  
Mycotoxigenic Fungi

Wheat grains are colonized by complex microbial communities that have the potential to affect seed quality and susceptibility to disease. Some of the beneficial microbes in these communities have been shown to protect plants against pathogens through antagonism. We evaluated the role of the microbiome in seed health: in particular, against mycotoxin-producing fungi. Amplicon sequencing was used to characterize the seed microbiome and determine if epiphytes and endophytes differ in their fungal and bacterial diversity and community composition. We then isolated culturable fungal and bacterial species and evaluated their antagonistic activity against mycotoxigenic fungi. The most prevalent taxa were found to be shared between the epiphytic and endophytic microbiota of stored wheat seeds. Among the isolated bacteria, Bacillus strains exhibited strong antagonistic properties against fungal pathogens with noteworthy fungal load reduction in wheat grain samples of up to a 3.59 log10 CFU/g compared to untreated controls. We also found that a strain of the yeast, Rhodotorula glutinis, isolated from wheat grains, degrades and/or metabolizes aflatoxin B1, one of the most dangerous mycotoxins that negatively affects physiological processes in animals and humans. The mycotoxin level in grain samples was significantly reduced up to 65% in the presence of the yeast strain, compared to the untreated control. Our study demonstrates that stored wheat grains are a rich source of bacterial and yeast antagonists with strong inhibitory and biodegradation potential against mycotoxigenic fungi and the mycotoxins they produce, respectively. Utilization of these antagonistic microorganisms may help reduce fungal and mycotoxin contamination, and potentially replace traditionally used synthetic chemicals.

scholarly journals Degradation of Phenothrin in Stored Wheat Grains

1981 ◽  
Vol 6 (2) ◽  
pp. 183-191 ◽  
Author(s):  
Kenji NAMBU ◽  
Yoshiyuki TAKIMOTO ◽  
Junshi MIYAMOTO
Keyword(s):  
Wheat Grains ◽  
Stored Wheat
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