• Title/Summary/Keyword: 곤충산업

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Evaluation of Sprouted Barley as a Nutritive Feed Additive for Protaetia brevitarsis and Its Antibacterial Action against Serratia marcescens (흰점박이꽃무지 사료첨가제로서 새싹보리의 곤충병원성 세균에 대한 항균 효과에 관한 연구)

  • Song, Myung Ha;Kim, Nang-Hee;Park, Kwan-Ho;Kim, Eunsun;Kim, Yongsoon
    • Journal of Life Science
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    • v.31 no.5
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    • pp.475-480
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    • 2021
  • Interest in edible insects such as Protaetia brevitarsis has increased rapidly, and several insect producers use these insects in industrialized mass production. However, mass rearing of insects can cause insect diseases. Sprouted barley is a valuable source of nutrients and has antioxidant, antimicrobial, anti-inflammatory, and anti-cancer effects. This study was conducted to investigate the effect of sprouted barley as a feed additive for producing healthy P. brevitarsis larvae. P. brevitarsis larvae were fed feeds with or without sprouted barley, and their body weight and larval period wewe checked weekly. To confirm the antibacterial effects of sprouted barley, in vitro bioassays were performed by counting Serratia marcescens colonies, and in vivo bioassays were performed by determining the survival rate and body weights of the S. marcescens-infected larvae. Larvae fed different feeds were analyzed for their nutrient compositions (i.e., such as proximate composition, minerals, amino acids, and heavy metals). Larvae fed 5% and 10% sprouted barley had maximum weight increases of 19.2% and 23.1%, respectively. Both treatment groups had significantly shorter larval periods than those of the control group. Sprouted barley markedly inhibited the growth of entomopathogenic S. marcescens. Furthermore, larvae fed sprouted barley exhibited higher Cu, Zn, and K levels. Seventeen amino acids were present in larvae fed sprouted barley, of which, tyrosine and glutamic acid were predominant. No heavy metals were detected in any of the investigated groups. Therefore, sprouted barley may be a suitable feed additive for producing high-quality P. brevitarsis larvae.

Comparative Analysis of Nutritional Components of Protaetia brevitarsis Larvae Fed Soybean Curd Cake (비지박 함유 먹이원 급이 흰점박이꽃무지 유충의 영양성분 비교분석)

  • Kim, Sun Young;Yoo, Taeho;Ji, Sangmin;Song, Jeong-Hun;Kim, So-Yun;Chang, Gyu-Dong
    • Journal of Life Science
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    • v.32 no.12
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    • pp.997-1004
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    • 2022
  • To verify the nutritional superiority and safety of Protaetia brevitarsis larvae fed a food source containing soybean curd cake, the nutrients and harmful substances of larvae reared only with fermented oak sawdust and a food source containing soybean curd cake were comparatively analyzed. The crude protein content was 50.0% in the larvae fed with a food source containing soybean curd cake (SCC), which was 1.1 times higher than that of the larvae fed with fermented oak sawdust (FOS) at 44.7%. Potassium, which showed the highest content among macrominerals, was 2.5 times higher in SCC (3,169.6 mg/100 g) than in FOS (1,245.9 mg/100 g). Among trace minerals, zinc showed 12.6 times higher content than FOS (8.2 mg/100 g) in SCC (103.0 mg/100 g). As a result of the analysis of harmful substances, all heavy metals met the edible insect control standards, and pathogenic microorganisms, such as E. coli and Salmonella spp, were not detected. According to the above study, the larvae of P. brevitarsis fed soybean curd cake contain various nutrients, and safety has also been confirmed, so it is judged to be suitable for use as food.

Lipase를 이용한 곤충 pheromone 합성 응용 - 생물 전환 기술

  • 서영배;고영희
    • The Microorganisms and Industry
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    • v.20 no.1
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    • pp.23-27
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    • 1994
  • 본고에서는 화학적수법으로 다양한 특이한 기질을 제조하여 여기에 입체특이적 성질(stereospecificity)과 입체선택적 성질(steroselectivity)이 높은 생물학적 방법들 중에서 주로 lipase를 이용한 부제가수분해반응(asymmetric hydrolysis)과 그 역반응인 에스테르화반응(esterification)등을 도입한 chiral building block의 제조와 이를 이용한 곤충 생리활성물질인 pheromone의 합성에 대한 최근의 많은 예들중 상품화를 시도하고 있는 매미나방의 pheromne인 (+)-disparlure에 대하여 간단히 소개하고자 한다.

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Development and Applying of an Evaluation Index for Selecting Pet Insects Using AHP (AHP를 활용한 애완곤충 종 선발의 평가지표 개발 및 적용)

  • Kim, So-Yun;Park, Haechul;Song, Jeong-Hun;Roh, Seung Jin;Kim, Seonghyun
    • Korean journal of applied entomology
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    • v.59 no.3
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    • pp.169-175
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    • 2020
  • We developed an evaluation index for selecting pet insect species. As an expert opinion survey, the Delphi method was used to establish evaluation items. Using AHP (analytic hierarchy process), evaluation criteria for selecting pet insects were proposed. And then based on application testing, we established a scoring system.

Antioxidant Effects of Hermetia illucens Larvae Extracts Using Different Extraction Temperatures and Solvents (추출 온도 및 용매에 따른 아메리카동애등에(Hermetia illucens) 유충 추출물의 항산화 효과)

  • Ji Yeong Park;Bonwoo Koo;Yong-Soon Kim;Kwanho Park
    • Journal of Environmental Science International
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    • v.32 no.4
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    • pp.221-232
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    • 2023
  • This study investigated the antioxidant effect of Hermetia illucens larvae using different extraction temperatures and solvents. We found significant differences in total phenolic content (TPC), total flavonoid content (TFC), an in three antioxidant indexes 2,2-diphenyl-1-picrylhydrazyl (DPPH), 1,1'-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS), and ferric-reducing antioxidant power (FRAP) contents, among the samples depending on the extraction temperature and solvent used. The sample extracted with water at 45℃ (HIW-45℃) showed the highest TPC, DPPH, ABTS, and FRAP contents, while the sample extracted with water at 90℃ (HIW-90℃) showed the highest TFC. These differences can be due to the different chemical structures of the extracted components. Based on these results, HIW-45℃ was the optimal extraction method for Hermetia illucens. We intend to further investigate the availability of functional materials for Hermetia illucens using this method.

Composition Analysis of Black Soldier Fly (Hermetia illucens) Larvae Fed with Different Three Single Fruit By-products (과채류 부산물 급이에 따른 아메리카동애등에(Hermetia illucens) 유충의 성분 분석)

  • Bonwoo Koo;Ji Yeong Park;Yong-Soon Kim;Ki Hyun Kim;Kwanho Park
    • Journal of Environmental Science International
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    • v.32 no.12
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    • pp.965-972
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    • 2023
  • As the world population growth and economy develops, the importance of eco-friendly organic waste resource treatment and up-cycling increases. Black soldier fly (BSF) (Hermetia illucens) treats organic waste resources that allows it to be recycled as a feed resource. In this study, we analyzed the nutrients composition, amino acid, and fatty acids of BSF larvae fed three agricultural by-products, namely apple pomace, mandarin waste, and oriental melon waste (mainly generated in South Korea). The highest BSF larvae crude protein and amino acid content was obtained in those fed mandarin waste compared with the other two diets (apple pomace and oriental melon waste). BSF larvae fed apple pomace had the highest crude fat, fatty acid, and lauric acid content compared with the other BSF larvae. Furthermore, all crude protein and fat content of BSF larvae fed the three agricultural by-products exceed that of the original agricultural by-products.

Current status and prospect of the sericulture industry in gyeongsangbukdo (경상북도 양잠산업의 현황과 전망)

  • Lee, Hi-Su;Gwak, Byeong-Sam;Kim, Ki-Jae
    • Journal of Sericultural and Entomological Science
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    • v.55 no.1
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    • pp.6-10
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    • 2019
  • Current status and prospect of sericultural industry in Gyeonsangbukdo were examined through history and business of institute, sericultural status of Gyeongsangbukdo, purchasing results, and prospects of Gyeongsangbukdo. Silkworm & Insect Business Center was established in 1911 as Sericultural training institute. Original silkworm 400 case, and Nuedongchunghacho inoculant 100 box will be spreaded. Sericultural farmer is 339 and 41.5 percent on the whole country in 2016. Ten thousand kilogram of cocoon was purchased by institute in 2016. Farm income was increased to 13.7 million won and purchased cocoon 9,875 kg in 2017. To activate sericulture Gyeongsangbukdo will support Hanbok Institute in 2019 and make sericultural complex.

New Record of the Family Artematopodidae Lacordaire, 1857 (Coleoptera, Elateroidea) in Korea (한국 미기록, 옛방아벌레과(딱정벌레목, 방아벌레상과)의 보고)

  • Han, Taeman;Kim, Sangsu;Hong, Ki-Jeong
    • Korean journal of applied entomology
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    • v.57 no.4
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    • pp.409-413
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    • 2018
  • The family Artematopodidae Lacordaire is reported based on a species, Macropogon sibiricus Motschulsky, for the first time in Korea. We provide taxonomic information for the family, the genus and species with morphological diagnostic characters and photos.

Correlation between Isolated Entomopathogenic Fungi and Soil Characteristics from Forest Areas of the Southwest Region in Korea (국내 서남 지역의 산림 토양 특성과 곤충병원성 진균과의 상관관계)

  • Kim, Hoe Ri;Kim, Hyngchan;Lee, Se Jin
    • Korean Journal of Organic Agriculture
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    • v.31 no.1
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    • pp.95-106
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    • 2023
  • Entomopathogenic fungi are one of the microorganisms distributed worldwide, and they inhabit not only insects but also soils of various regions such as agricultural land and forest areas. In this study, entomopathogenic fungi distributed in the soil of forest areas in Korea were isolated using the insect-baiting method, and the relationship between the distribution and diversity of entomopathogenic fungi and the physical/chemical characteristics of the soil was analyzed. The soils were collected from five forest areas in Korea, and a total of 42 entomopathogenic fungal isolates were isolated from the collected soils. Among them, Beauveria bassiana (42.9%) and Metarhizium anisopliae (45.2%) were mainly isolated. In particular, it was confirmed that the distribution of M. anisopliae varies depending on the total nitrogen (g/kg) and organic matter content (%) of the soil. The soils in forest areas in Korea have a low pH of 4-5. Among all isolates, >50% of entomopathogenic fungi were isolated from silt loam. This study suggests that it will be helpful in understanding the relationship between the distribution and diversity of entomopathogenic fungi and the physical and chemical characteristics of soil.