Infestation of Mites, Insects and Microorganisms in a Large Wheat Bulk after Prolonged Storage

1962 ◽  
Vol 94 (5) ◽  
pp. 542-555 ◽  
Author(s):  
R. N. Sinha ◽  
E. A. R. Liscombe ◽  
H. A. H. Wallace
Keyword(s):  
Grain Quality ◽  
Prolonged Storage ◽  
Stored Grain ◽  
Secondary Importance ◽  
Economic Significance ◽  
Storage Fungi ◽  
And Storage ◽  
Prairie Provinces ◽  
Comprehensive Studies

Mites, insects, and storage fungi usually infest grain that has been stored for several years. Since mites and most storage fungi are usually considered of secondary importance to insects, few comprehensive studies have been made on their occurrence in grain stored in the Prairie Provinces. Although difficult to see because of their microscopic size, the presence of mites and fungi in stored grain often leads to a decrease in grain quality. Thus, information on their occurrence in stored grain together with data on the damage attributed to them would be useful in assessing their economic significance.

scholarly journals Use of Families of Euphorbiaceae for the Production of Biodiesel in Semiarid Areas

Proceedings ◽  
2021 ◽  
Vol 52 (1) ◽  
pp. 2
Author(s):  
Noé Anes García ◽  
Antonio Luis Marqués Sierra
Keyword(s):  
Fossil Fuels ◽  
Chemical Properties ◽  
Petroleum Products ◽  
Prolonged Storage ◽  
Physical Chemical ◽  
Semiarid Areas ◽  
Storage Times ◽  
And Storage ◽  
Improved Characteristics ◽  
Made In

In recent years, developments made to reduce the consequences generated using petroleum products have been strengthening; therefore, biofuels have become a requirement in different countries worldwide with the objective of reducing not only the high levels of current pollution, but also mitigating the effects generated by global warming. Despite the advances that have been made in the field of research on Jatropha, it is still necessary to carry out more detailed studies aimed at achieving a better use of it, identifying the influence of its physical–chemical properties in terms of quality levels, as well as determining its behavior when mixed with palm oil to achieve a biodiesel with better yields, whose impact will be reflected mainly in the environmental field, helping to mitigate the production of greenhouse gases that are produced by petroleum products. Although currently the biofuels sector has made important advances in research, it is necessary to deepen the physical–chemical analyses both in the production and storage processes of biodiesel, so that in the future it can be fully fulfilled with the energy requirements that are currently only achieved with fossil fuels, so it is necessary to direct this research toward the development of new products with improved characteristics, especially when exposed to prolonged storage times and low temperatures.

FUNGI ASSOCIATED WITH HOT SPOTS IN FARM STORED GRAIN

1962 ◽  
Vol 42 (1) ◽  
pp. 130-141 ◽  
Author(s):  
H. A. H. Wallace ◽  
R. N. Sinha
Keyword(s):  
Hot Spots ◽  
Viable Seed ◽  
Stored Grain ◽  
Surface Layers ◽  
Bulk Heating ◽  
Storage Fungi ◽  
Grain Bulks ◽  
Penicillium Spp ◽  
Water Contents

The temperature, moisture, germination and fungal relationships of normal and heated wheat and oats collected from grain bulks in 13 granaries in Manitoba and Saskatchewan were determined during the falls and winters of 1957–60. Eight bulks were studied in detail. It was found that hot spots could develop anywhere in a bin. Temperatures up to 53 °C. (in winter) were obtained and were usually highest at the base of the bulk. Heating grain was relatively dry (less than 11 per cent) except along the surface. The highest water contents (27 per cent) in the bulks always occurred in the gram along the surface layers. Loss of germinability could occur anywhere in the bulk. Field fungi, such as Alternaria, were common in viable seed, but negligible in heated grain. The seeds in hot spots were predominantly infected by storage fungi, among which Penicillium spp. were the most abundant, even in relatively dry grain at the 6-foot depth. Other fungi commonly found were Aspergillus spp., especially A. flavus Link, A. fumigatus Fresenius, A. versicolor (Vuillemin) Tiraboschi and Absidia spp. Actinomycetes (Streptomyces) were common in some heating grain bulks.

scholarly journals The Effects of Storage on Nutrient Composition and Mycoflora of Stored Guinea Corn (Sorghum bicolor) Grains

2021 ◽  
pp. 15-25
Author(s):  
E. D. Fagbohun ◽  
K. O. Ojo
Keyword(s):  
Sorghum Bicolor ◽  
Study Design ◽  
Crude Protein ◽  
Pearson Correlation ◽  
Research Work ◽  
Nutrient Composition ◽  
Carbohydrate Content ◽  
Prolonged Storage ◽  
Human Populations ◽  
Stored Grain

Aims: This research work aims to determine the changes in nutritional (proximate, mineral) composition and mycoflora of Sorghum bicolor grains stored for 5 months in order to determine its fitness in meeting nutritional demand.                         Study Design: Experimental study design was carried out Place and Duration of Study: Department of Microbiology, Ekiti State University, Ado-Ekiti, from February 2017 to August 2018. Methodology: The grain was procured from Usi market in Usi-Ekiti. It was further sundried for seven days and stored in an airtight container in the laboratory at room temperature. They were visually examined for external changes on the caryopsis and cultured to determine the spoilage fungi. Mineral and proximate analyses were routinely carried out to determine the changes in nutrient composition. These analyses were carried out monthly for five months to determine the changes in physicochemical properties and mycoflora associated with Sorghum bicolor on storage. Results: During storage, spoilage such as external mouldiness, discoloration, musty odour and progressive depletion of external caryopsis were observed on the grain. Seven species of fungi namely Penicillium glabrum, Aspergillus flavus, Penicillium spp., Fusarium spp., Alternaria spp., Aspergillus niger and Saccharomyces cerevisiae were isolated using a combination of direct plating, dilution and washing method. The colony count of the mycoflora population increased from 6 to 16 spore-forming units per gram. The proximate component comprising ash, moisture, crude protein, fat and fiber content decreased but an increase in carbohydrate content was recorded. A negative Pearson correlation (r = - .990) between crude protein and carbohydrate content was recorded. This was attributed to the presence of resistant starch in Sorghum bicolor and the use of alternative source(s) of carbon for energy by the fungi. The entire mineral component decreased during storage. Copper was the barest mineral while magnesium was the most stable mineral in the stored grain. Conclusion: Sorghum bicolor grains contain vital minerals and nutrients. Prolonged storage of Sorghum bicolor increased the mycoflora population and consequently decreased the nutrient composition excluding the carbohydrate component. Some minerals and proximate components of the grain were relatively stable while others experienced pronounced depletion. Nutritionally deficient grains may lead to malnutrition especially in growing animals and human populations were adequate minerals and nutrients are required for rapid growth.

Development of Granary Weevils and Storage Fungi in Columns of Wheat—II1

1960 ◽  
Vol 53 (3) ◽  
pp. 375-380 ◽  
Author(s):  
C. M. Christensen ◽  
A. C. Hodson
Keyword(s):  
Storage Fungi ◽  
And Storage

scholarly journals Mycotoxin concentrations in rice from three climatic locations in Africa as affected by grain quality, production site, and storage duration

2019 ◽  
Vol 7 (4) ◽  
pp. 1274-1287 ◽  
Author(s):  
Erasmus N. Tang ◽  
Sali A. Ndindeng ◽  
Jude Bigoga ◽  
Karim Traore ◽  
Drissa Silue ◽  
...  
Keyword(s):  
Grain Quality ◽  
Storage Duration ◽  
Production Site ◽  
And Storage ◽  
Quality Production

scholarly journals Aboveground storage of hydrocarbon gas hydrates

2018 ◽  
Vol 60 ◽  
pp. 00028
Author(s):  
Mykola Zotsenko ◽  
Larysa Pedchenko ◽  
Andrii Manhura
Keyword(s):  
Gas Hydrate ◽  
Mechanical Characteristics ◽  
Negative Temperature ◽  
Prolonged Storage ◽  
Long Term Storage ◽  
Hydrocarbon Gas ◽  
Mixing Method ◽  
And Storage ◽  
Term Storage

The work objective is to substantiate the technical bases for the production of gas hydrate blocks directly on-site for further transportation and storage in above ground storages, as an alternative to transporting and storing gas in underground gas storages. The theoretical bases have been considered and processes of gas hydrate blocks producing, physical-mechanical characteristics of artificial hydrates with the purpose of determining the conditions of their storage and prolonged storage were tested in laboratory conditions. The construction of above ground gas hydrate storage in the form of a building, partially deepened in a ground, which is separated from the environment by a wall of gravel cement elements made by the mixing method were substantiated. It is proved that such a constructive solution for a long-term storage of gas hydrate blocks is the most economical in terms of energy consumption to maintain internal negative temperature.

Effects of pasteurization and storage conditions on donkey milk nutritional and hygienic characteristics

2018 ◽  
Vol 85 (4) ◽  
pp. 445-448 ◽  
Author(s):  
Mina Martini ◽  
Federica Salari ◽  
Iolanda Altomonte ◽  
Giuseppe Ragona ◽  
Alice Piazza ◽  
...  
Keyword(s):  
Nutritional Quality ◽  
Storage Conditions ◽  
Prolonged Storage ◽  
Microbiological Analysis ◽  
Thermal Treatments ◽  
Donkey Milk ◽  
Freezing Temperatures ◽  
Few Data ◽  
And Storage

Until now there are only few data on the effects of thermal treatments on the nutritional and hygienic characteristics of donkey milk. This Research Communication aims to provide information on the effects of pasteurization (at +65 °C for 30 min) and prolonged storage at refrigeration and freezing temperatures (21 d at + 3 °C ± 2 °C and up to 90 d at −20 °C ± 5 °C) on some nutritional and hygienic characteristics of Amiata donkey milk. The milk was monitored by chemical and microbiological analysis. Pasteurization ensured compliance with EC Regulation No 1441/2007, as Enterobacteriaceae were never found in the milk, or during storage at refrigeration and freezing temperatures. Colony count at 30 °C in pasteurized milk never went beyond 1 log CFU/ml. The heat treatment and the storage did not result in any variations in the main constituents of the milk. Only a decrease in lactose and few variations in some fatty acids at 90 d of freezing were observed. In conclusion, pasteurization was able to achieve and maintain a high hygienic-sanitary quality over time; storage at refrigeration or freezing temperatures did not alter the nutritional quality of fat and the gross composition of the product. These findings are useful to improve knowledge on the milk shelf life in order to guarantee safety and nutritional quality for infants who need small quantities of daily milk.

Insect and Mite Infestations in Empty Granaries in the Prairie Provinces

1962 ◽  
Vol 94 (4) ◽  
pp. 433-441 ◽  
Author(s):  
E. A. R. Liscombe ◽  
F. L. Waiters
Keyword(s):  
Storage Period ◽  
Storage Condition ◽  
Stored Grain ◽  
Weed Seeds ◽  
Stored Grain Pests ◽  
Grain Dust ◽  
Mite Infestations ◽  
Stored Grain Insects ◽  
Extensive Damage ◽  
Prairie Provinces

In the Prairie Provinces, newlv harvested grain is seldom infested with stored grain insects and mites when first binned. During the storage period, infestation of grain depends on 1, the proximity and abundance of stored grain pests, 2, the ability of the insects to gain a foothold and cause extensive damage, and 3, the initiai storage condition of the grain. The latter, in turn, is influenced bv temperature, moisture content and the amount of grain dust, chaff and weed seeds present.

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