Purine derivate content and amino acid profile in larval stages of three edible insects

Bednářová, Martina; Borkovcová, Marie; Komprda, T.

doi:10.1002/jsfa.6198

Cited by 33 publications

(14 citation statements)

References 21 publications

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“…The amino acid patterns reported here are consistent with the amino acid profiles previously reported for these species [Finke, ; Finke, ; Bednarov et al, ]. The analytical data suggests that for insects, total sulfur amino acids are first limiting when used to feed rats.…”

Section: Discussionsupporting

confidence: 90%

Complete nutrient content of four species of commercially available feeder insects fed enhanced diets during growth

Finke¹

2015

Zoo Biology

207

142

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Commercially raised feeder insects used to feed captive insectivores are a good source of many nutrients but are deficient in several key nutrients. Current methods used to supplement insects include dusting and gut-loading. Here, we report on the nutrient composition of four species of commercially raised feeder insects fed a special diet to enhance their nutrient content. Crickets, mealworms, superworms, and waxworms were analyzed for moisture, crude protein, fat, ash, acid detergent fiber, total dietary fiber, minerals, amino acids, fatty acids, vitamins, taurine, carotenoids, inositol, and cholesterol. All four species contained enhanced levels of vitamin E and omega 3 fatty acids when compared to previously published data for these species. Crickets, superworms, and mealworms contained b-carotene although using standard conversion factors only crickets and superworms would likely contain sufficient vitamin A activity for most species of insectivores. Waxworms did not contain any detectable b-carotene but did contain zeaxanthin which they likely converted from dietary b-carotene. All four species contained significant amounts of both inositol and cholesterol. Like previous reports all insects were a poor source of calcium and only superworms contained vitamin D above the limit of detection. When compared to the nutrient requirements as established by the NRC for growing rats or poultry, these species were good sources of most other nutrients although the high fat and low moisture content of both waxworms and superworms means when corrected for energy density these two species were deficient in more nutrients than crickets or mealworms. These data show the value of modifying the diet of commercially available insects as they are growing to enhance their nutrient content. They also suggest that for most insectivores properly supplemented lower fat insects such as crickets, or smaller mealworms should form the bulk of the diet. Zoo Biol. 34:554-564, 2015.

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Section: Discussionsupporting

confidence: 90%

Complete nutrient content of four species of commercially available feeder insects fed enhanced diets during growth

Finke¹

2015

Zoo Biology

207

142

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“…Additionally, some species possess the ability to recycle industrial or agricultural by‐products (Smetana, Schmitt, & Mathys, ). Insects’ protein content is similar to conventional meat and soybeans (Bednářová, Borkovcová, & Komprda, ) and could be used to supplement conventional protein sources (Pambo, Okello, Mbeche, Kinyuru, & Alemu, ). Furthermore, they are rich in essential amino acids, are good sources of polyunsaturated fatty acids (Osimani et al., ), and are also rich in iron, selenium, zinc, and many B vitamins (van Huis, ).…”

Section: Introductionmentioning

confidence: 99%

Consumer attitudes toward entomophagy before and after evaluating cricket (Acheta domesticus)‐based protein powders

Barton

Richardson

McSweeney

2020

Journal of Food Science

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In recent years, the use of insects in food products has increased. Insects are a sustainable ingredient that is high in protein. However, consumption in Western countries is low, and this may be due to poor sensory qualities, expense, availability, and food neophobia. The objectives of this study were to determine Atlantic Canadian consumers’ attitudes toward entomophagy and to assess consumers’ perception of cricket‐based protein powders. There were two phases to this study: in phase one, participants (n = 107) completed a survey about their attitudes toward consuming insects (Specific Beliefs and Attitudes about Insect Consumption Scale created by Ruby, Rozin, & Chan 2015), and in the second phase, participants (n = 102) were asked to evaluate four different protein powders (two contained crickets) using 9‐point hedonic scales and a CATA questionnaire. Then, the participants were again asked to complete the aforementioned survey. Before consuming cricket protein powder, most participants thought that insects were a sustainable protein source, but also thought that the consumption of insects was undesirable. However, after consuming cricket protein powder, the participants were willing to buy cricket powder and were willing to recommend it to their friends. For insect consumption to become acceptable in the Western world, it will need to be integrated slowly to reduce consumers’ fear and negative attitudes. Protein powders are consumed by many people in the Western world and are an excellent candidate to allow for the integration of insects into their diets. Practical Application This study demonstrated that consumers in Atlantic Canada are more willing to eat insects after having tried them in protein powders. Additionally, protein powders represent a familiar context for consumers and allow for the acceptable integration of cricket powder. Consumers are willing to buy and recommend crickets to their friends after consuming them (in a processed form); however, they still have concerns that insects may carry harmful microbes and toxins.

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“…Furthermore, available technologies have limited determination methods of purine, thereby hampering purine data updates. In recent years, the determination of purine in foods has become of wide concern once again, with various determination methods focused on beer, soybean, and livestock and poultry meat . Seafood is widely consumed for its tasty flavor and high content of protein and unsaturated fatty acids.…”

Section: Introductionmentioning

confidence: 99%

Determination of four different purines and their content change in seafood by high-performance liquid chromatography

Sui

et al. 2016

J. Sci. Food Agric.

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Purine derivate content and amino acid profile in larval stages of three edible insects

Abstract: Larvae of mealworm and superworm are protein-rich and purine-low meat alternatives. In contrast, cricket nymphs are protein-rich and purine-rich and cannot be recommended for people with hyperuricemia or gout.

Cited by 33 publications

References 21 publications

Complete nutrient content of four species of commercially available feeder insects fed enhanced diets during growth

Complete nutrient content of four species of commercially available feeder insects fed enhanced diets during growth

Consumer attitudes toward entomophagy before and after evaluating cricket (Acheta domesticus)‐based protein powders

Determination of four different purines and their content change in seafood by high-performance liquid chromatography

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