A Winter Survey of Coleoptera in Feed and Flour Mills1

Rilett, Omar R.; Weigel, Robert D.

doi:10.1093/jee/49.2.154

Cited by 20 publications

(4 citation statements)

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“…Since the decade 50 studies are being conducted to identify the presence of contaminations microbiological in the feed mills. RILETT and WEIGEL (1956) and can become serious problems when grain moistures are in the range of 15 -18%. This in turn can lead to insect and mold problems.…”

Section: Revista Brasileira De Tecnologia Agroindustrialmentioning

confidence: 99%

Identification of the Critical Control Points in a Feed Mill: A Case Study

Coradi

Filho

Chaves

2013

RBTA

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Based on the HACCP principles the objective of this work was to identify the critical points of control in a feed mill to real capacity of production at 1,000 ton day-1 , located in the southwest of Brazil. The presence of birds, rodents, insects, mites and fungi in the products, by-products, as well as internal and external areas of the industry were evaluated. The samplings of products and traps installation were the techniques utilized for the control. In addition, the receiving, pre-cleaning, drying and storage of corn, as well as dosage and mixing of feed were characterized the critical steps in the control of contamination. Furthermore, birds and rodents were the main contaminants observed during the production process, however, the high population of insects and fungal colonies found in the products meant the greatest risk of contamination to the final product. In conclusion, the use of Good Storage Practices and Manufacturing, trap installation, as well as intense cleaning and sanitation processes are immediate and efficiencies alternatives in the contamination control in feed mills.

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Section: Revista Brasileira De Tecnologia Agroindustrialmentioning

confidence: 99%

Identification of the Critical Control Points in a Feed Mill: A Case Study

Coradi

Filho

Chaves

2013

RBTA

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“…Stored‐product insects are cosmopolitan in distribution (Hagstrum & Subramanyam, 2009) and are adapted to infesting raw and processed cereal products, posing a constant threat to stored‐food commodities worldwide (Sinha & Watters, 1985). Numerous stored‐product insect species are associated with stored‐grain elevators, feed mills, and retail stores (Rilett & Weigel, 1956; Roesli et al , 2003; Larson et al , 2008a). These pests cause significant quantitative and qualitative losses to the multibillion dollar grain, food, feed, and retail industries each year through their feeding and product adulteration.…”

Section: Introductionmentioning

confidence: 99%

Stored-product insects carry antibiotic-resistant and potentially virulent enterococci

Channaiah

Subramanyam

McKinney

et al. 2010

FEMS Microbiology Ecology

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A total of 154 enterococcal isolates from 95 stored-product insects collected from a feed mill, a grain storage silo, and a retail store were isolated and identified to the species level using PCR. Enterococcus casseliflavus represented 51% of the total isolates, followed by Enterococcus gallinarum (24%), Enterococcus faecium (14%), Enterococcus faecalis (7%), and Enterococcus hirae (5%). Many isolates were resistant to tetracycline (48%), followed by streptomycin (21%), erythromycin (14%), kanamycin (13%), ciprofloxacin (12%), ampicillin (4%), and chloramphenicol (<1%). Enterococci carried genes coding for virulence factors, including the gelatinase gene gelE (26% of isolates), an enterococcal surface protein gene esp (1%), and the cytolysin gene cylA (2%). An aggregation substance (asa1) gene was detected in six out of 10 E. faecalis isolates and five of these were positive for the aggregation substance. Enterococci were positive for hemolytic (57% of isolates) and gelatinolytic (23%) activity. The filter-mating assay showed that the tetracycline resistance gene, tetM, was transferable among E. faecalis by conjugation. These data demonstrated that stored-product insects can serve as potential vectors in disseminating antibiotic-resistant and potentially virulent enterococci.

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“…Grain-processing facilities such as flour mills are ideal habitats for supporting infestation by economically damaging stored-product insect pests, because of year-round warm temperatures and constant availability of abundant food resources [1,2]. Several surveys have documented the presence of stored-product insect species in moving mill stock [1,3], static mill stock, and within and around milling equipment [4][5][6][7]. Insect infestations were detected in mills that were in operation [8][9][10][11][12] or no longer in use [13].…”

Section: Introductionmentioning

confidence: 99%

“…The closed circles are the actual larvae that survived over time. The heating rate was calculated as beginning temperature minus the end temperature divided by the total time 7.…”

mentioning

confidence: 99%

Heat treatment of grain-processing facilities for insect management: a historical overview and recent advances

Subramanyam

Mahroof²,

Brijwani³

2011

Stewart Postharvest Review

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Purpose of review:Tactics to manage infestations of stored-product insects in grain-processing facilities historically included the use of heat treatments and the fumigant methyl bromide. The phase out of methyl bromide in the USA in 2005, because of its adverse effects on stratospheric ozone, has renewed interest in using heat treatments. In this review, a brief history regarding the use of heat treatments in grain-processing facilities, such as flour mills, is described along with recent research developments and future research needs. Findings: Scientific literature published during the last decade shed new light on the following areas: identification of a heat-tolerant stage of a species based on stage-specific susceptibility at different constant elevated temperatures; differences in susceptibility among stored-product insect species to elevated temperatures; confusion in determining a heat-tolerant stage during commercial heat treatments of grain-processing facilities; impact of sanitation on insect responses; degree and duration of insect suppression obtained following a heat treatment intervention; development and validation of a thermal death kinetic model to predict survival of heat-tolerant insect life stages as a function of time-dependent temperature data; and development of software programs to estimate the heat energy required including costs of a heat treatment based on fuel used and predicting survival of heat-tolerant insect stages in "real time" during heat treatments. Directions for future research: Temperature-time mortality relationships have been developed for a few economically important insect species and additional species should be evaluated in both laboratory and field conditions. Very little is understood about the impact of the lethal and sub-lethal elevated temperatures used during heat treatments on insect behaviour and reproduction. The costeffectiveness of combining elevated temperatures with other chemical or nonchemical methods in grain-processing facilities also should be explored.

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A Winter Survey of Coleoptera in Feed and Flour Mills1

Cited by 20 publications

References 0 publications

Identification of the Critical Control Points in a Feed Mill: A Case Study

Identification of the Critical Control Points in a Feed Mill: A Case Study

Stored-product insects carry antibiotic-resistant and potentially virulent enterococci

Heat treatment of grain-processing facilities for insect management: a historical overview and recent advances

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