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KMID : 0613820200300121109
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Journal of Life Science
2020 Volume.30 No. 12 p.1109 ~ p.1117
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Comparative Analysis of Nutritional Components of Zophobas atratus Larvae Raised with Artificial Diet and Wheat Bran
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Kim Sun-Young
Kwak Kyu-Won
Lee Kyeong-Yong
Ko Hyeon-Jin
Kim Yong-Soon
Kim Eun-Sun
Park Kwan-Ho
Yoon Hyung-Joo
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Abstract
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In order to verify whether Zophobas atratus is an edible insect, the nutrients and harmful substances of Z. atratus larvae reared with an artificial diet (AD) and wheat bran (WB) were compared and analyzed. Based on dry weight, the crude protein content of Z. atratus larvae reared with an AD was 62.4%, 1.4 times higher than that of those reared with WB (45.2%). The crude fat content was 20.5% in the AD group, 2.3 times less than in the WB group (46.3%). The leucine content was 1.4 times higher in the AD group (4.2%) than in the WB group (3.0%). The glutamic acid content of nonessential amino acids was 1.3 times higher in the AD group (7.0%) than in the WB group (5.3%). The oleic acid content was 1.4 times higher in the WB group (37.0%) than in the AD group (26.7%). The potassium content was 1.1 times higher in the AD group (975.9 mg/100 g) than in the WB group (872.9 mg/100 g). According to the results of the toxic substances analysis, the lead and cadmium levels of the WB and AD groups were standard for edible insects. Pathogenic microorganisms, such as E. coli and salmonella, were not detected in either group. According to the results of the present analysis of nutrition and harmful substances, Z. atratus larvae raised on an AD are safe and contain various nutrients. Therefore, such larvae could be useful sources of food and feed.
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KEYWORD
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Artificial diet, hazardous substances, nutrients, Zophobas atratus larvae
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