Selenium-Induced Mortality and Tissue Distribution Studies in
Tenebrio molitor
(Coleoptera: Tenebrionidae)

Hogan, Gwendolyn R.; Razniak, H. G.

doi:10.1093/ee/20.3.790

Cited by 32 publications

(32 citation statements)

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“…Insects may also contain elevated levels of trace elements e.g. selenium (Hogan and Razniak, 1991), which may accumulate in the insect from the feeding substrate. Other chemicals are likely to be used during rearing of insects, e.g.…”

Section: Chemical Hazards 42mentioning

confidence: 99%

“…Bogong moths (Agrotis infusa), historically a traditional food item in Australia, were shown to take up arsenic from arsenic polluted soils (Green et al 2001) and selenium has been shown to accumulate in T. molitor (Hogan and Razniak 1991). Aphids (Sitobion avenae) feeding on wheat grown in soils fertilised with sewage sludge containing cadmium and zinc, accumulated these metals (Merrington et al, 1997).…”

Section: Heavy Metals and Arsenic 421mentioning

confidence: 99%

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Risk profile related to production and consumption of insects as food and feed

2015

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The present opinion has the format of a risk profile and presents potential biological and chemical hazards as well as allergenicity and environmental hazards associated with farmed insects used as food and feed taking into account of the entire chain, from farming to the final product. The opinion also addresses the occurrence of these hazards in non-processed insects, grown on different substrate categories, in comparison to the occurrence of these hazards in other non-processed sources of protein of animal origin. When currently allowed feed materials are used as substrate to feed insects, the possible occurrence of microbiological hazards is expected to be comparable to their occurrence in other nonprocessed sources of protein of animal origin. The possible occurrence of prions in non-processed insects will depend on whether the substrate includes protein of human or ruminant origin. Data on transfer of chemical contaminants from different substrates to the insects are very limited. Substrates like kitchen waste, human and animal manure are also considered and hazards from insects fed on these substrates need to be specifically assessed. It is concluded that for both biological and chemical hazards, the specific production methods, the substrate used, the stage of harvest, the insect species and developmental stage, as well as the methods for further processing will all have an impact on the occurrence and levels of biological and chemical contaminants in food and feed products derived from insects. Hazards related to the environment are expected to be comparable to other animal production systems. The opinion also identifies the uncertainties (lack of knowledge) related to possible hazards when insects are used as food and feed and notes that there are no systematically collected data on animal and human consumption of insects. Studies on the occurrence of microbial pathogens of vertebrates as well as published data on hazardous chemicals in reared insects are scarce. Further data generation on these issues are highly recommended. Risk profile related to production and consumption of insects as food and feed EFSA Scientific Committee AbstractThe present opinion has the format of a risk profile and presents potential biological and chemical hazards as well as allergenicity and environmental hazards associated with farmed insects used as food and feed taking into account of the entire chain, from farming to the final product. The opinion also addresses the occurrence of these hazards in non-processed insects, grown on different substrate categories, in comparison to the occurrence of these hazards in other non-processed sources of protein of animal origin. When currently allowed feed materials are used as substrate to feed insects, the possible occurrence of microbiological hazards is expected to be comparable to their occurrence in other non-processed sources of protein of animal origin. The possible occurrence of prions in nonprocessed insects will depend on whether the substrate includes protein ...

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Section: Chemical Hazards 42mentioning

confidence: 99%

Section: Heavy Metals and Arsenic 421mentioning

confidence: 99%

Risk profile related to production and consumption of insects as food and feed

2015

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“…Included among these are species of insects, migrating birds, waterfowl (e.g., geese, ducks and grebes), shore birds (e.g., herons, including blue herons, egrets, and rails), gulls, predators (e.g., hawks and owls), and reptiles and amphibians (e.g., salamanders, frogs, toads, turtles, garter snakes, bullsnakes, and water snakes). Cases of biological impact in California and Wyoming included low hatch rates and other reproductive failures in birds, waterfowl, fish, amphibians, insects and mammals (Hogan and Razniak, 1991;Welsh and Maughan, 1994;O'Toole and Raisbeck, 1995;Raisbeck et al, 1996). Palatability of vegetation is a primary concern for protection of wildlife.…”

Section: Plant and Soil Selenium Distribution In Relation To Land Dismentioning

confidence: 99%

Evaluation of Seleniferous Plants and Soils Within Disturbed and Native Lands

Skinner-Martin¹,

Vance²

2002

JASMR

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Fort Carson is situated in southeastern Colorado where selenium (Se) occurs naturally in erosive geological formations. Due to both water and wind erosion on the military base, deposition of seleniferous sediments can augment soil Se levels, often exceeding the suitable management level of 0.5 mg/kg extractable Se and creating the potential for some vegetation to accumulate more than the 5 mg Se/kg total plant Se concentrations that are of concern for food chain transfer. Our objective was to locate areas in Fort Carson where plant Se concentrations can occur at levels high enough to impact wildlife, and where programs for prevention and control of soil erosion might be implemented. Soil, geology and vegetation attributes were identified in GIS coverages for sampled descriptive units exceeding suitable Se levels (> 5.0 mg Se/kg in plants, > 0.5 mg Se/kg in soils), which were then used to project the potential for similar Se levels in comparable units that were not sampled. Plant Se levels followed the order: forbs > shrubs > grasses > trees; no sampled tree material exceeded the Se suitability limit. Plant Se uptake was not necessarily dependent upon land disturbance or Se concentration in soils; however, areas having the highest plant and soil Se concentrations were primarily coincident with areas of greatest plant productivity, plentiful water supply, and soils derived from or overlying Cretaceous shales.

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“…Selenium (Se) essentiality in vertebrates has been proven in the second half of the last century, and currently Se is believed to be an essential trace element for all living organisms, except higher plants and yeast [1,2], although initially Se has been mainly considered in terms of its toxicity. However, detailed studies of invertebrates' genome have shown the massive loss of selenoproteins during evolution in some species of nematodes and insects [3].…”

Section: Introductionmentioning

confidence: 99%

Ecological Importance of Insects in Selenium Biogenic Cycling

Golubkina

Sheshnitsan

Kapitalchuk

2014

International Journal of Ecology

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Selenium is an essential trace element for animal and human beings. Despite the importance of insects in most ecosystems and their significant contribution to the biological cycling of trace elements due to high abundance, population productivity, and diverse ecosystem functions, surprisingly little information is available on selenium bioaccumulation by these arthropods. This review considers selenium essentiality and toxicity to insects as well as insects' contribution to selenium trophic transfer through the food chains. Data on Se accumulation by insects of the Dniester River Valley with no anthropogenic Se loading reveal typically low Se content in necrophagous insects compared to predators and herbivores and seasonal variations in Se accumulation.

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Selenium-Induced Mortality and Tissue Distribution Studies in Tenebrio molitor (Coleoptera: Tenebrionidae)

Cited by 32 publications

References 0 publications

Risk profile related to production and consumption of insects as food and feed

Risk profile related to production and consumption of insects as food and feed

Evaluation of Seleniferous Plants and Soils Within Disturbed and Native Lands

Ecological Importance of Insects in Selenium Biogenic Cycling

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