Pub Date : 2017-01-01DOI: 10.7852/IJIE.2017.35.2.111
O. Kwon, Wan-Taek Ju, Hyun-bok Kim, Gyoo-Byung Sung, Yong‐Soon Kim
{"title":"Characterization of DNJ production for large-scale fermentation of mulberry leaf","authors":"O. Kwon, Wan-Taek Ju, Hyun-bok Kim, Gyoo-Byung Sung, Yong‐Soon Kim","doi":"10.7852/IJIE.2017.35.2.111","DOIUrl":"https://doi.org/10.7852/IJIE.2017.35.2.111","url":null,"abstract":"","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84199096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-01-01DOI: 10.7852/ijie.2017.35.1.22
Da-Young Lee, Jae-Min Cho, S. Yun, K. Hong, S. Ji, Jong-Gon Son, Eun-Hee Kim
{"title":"Comparison of silkworm powder from 3 Bombyx mori varieties on alcohol metabolism in rats","authors":"Da-Young Lee, Jae-Min Cho, S. Yun, K. Hong, S. Ji, Jong-Gon Son, Eun-Hee Kim","doi":"10.7852/ijie.2017.35.1.22","DOIUrl":"https://doi.org/10.7852/ijie.2017.35.1.22","url":null,"abstract":"","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87609604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-01-01DOI: 10.7852/IJIE.2017.35.1.14
Da-Young Lee, Jae-Min Cho, S. Yun, K. Hong, S. Ji, Jong-Gon Son, Eun-Hee Kim
{"title":"Comparative effect of silkworm powder from 3 Bombyx mori varieties on ethanol-induced gastric injury in rat model","authors":"Da-Young Lee, Jae-Min Cho, S. Yun, K. Hong, S. Ji, Jong-Gon Son, Eun-Hee Kim","doi":"10.7852/IJIE.2017.35.1.14","DOIUrl":"https://doi.org/10.7852/IJIE.2017.35.1.14","url":null,"abstract":"","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83216117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.7852/IJIE.2016.32.2.60
K. Qian, Haibin Chen, X. Wan
Pheromone orientation in moths is an exemplar of olfactory sensitivity. To avoid cross mating, the responses of males to pheromone blends must be high specificity and temporal resolution. We tested the effects of olfactory self- and cross-adaptation of pheromone compounds and mixtures in Spodoptera litura moths by electroantennogram (EAG) recordings. The challenge of S. litura antennae to a pulse train of its own pheromone blends of Z9,E11-14:OAc and Z9,E12-14:OAc with 200 ms on/off and 1 s on/off indicated that the repetitive stimulation by 200 ms on/off with high dosages resulted in greater adaptation than that by 1 s on/off with low dosages and the adaptation index of Z9,E11-14:OAc in all treatments is significantly larger than that of Z9,E12-14:OAc, suggesting that high dosages with more frequent stimulation prefer to induce sensory adaptations and a different odor coding exist between the two components in the antennal periphery in this moth. The cross-adaptation EAG test among the two pheromone compounds and Z7-12:OAc and Z9-14:OH from congeneric species of S. litura showed that each of these compounds adapted the antenna more to that specific compound. The significantly higher adaptation to Z7-12:OAc and Z9-14:OH than to the pheromone components of S. litura induced by themselves suggested that both of them are coded by specific odor receptor neurons which are different from those tuned to the pheromone components of S. litura . Thus, we proposed that Z7-12:OAc and Z9-14:OH may play an important role in avoidance of heterospecific mating between S. litura and its sympatric moth species.
{"title":"Effects of olfactory self- and cross-adaptation on perceiving odor in a moth","authors":"K. Qian, Haibin Chen, X. Wan","doi":"10.7852/IJIE.2016.32.2.60","DOIUrl":"https://doi.org/10.7852/IJIE.2016.32.2.60","url":null,"abstract":"Pheromone orientation in moths is an exemplar of olfactory sensitivity. To avoid cross mating, the responses of males to pheromone blends must be high specificity and temporal resolution. We tested the effects of olfactory self- and cross-adaptation of pheromone compounds and mixtures in Spodoptera litura moths by electroantennogram (EAG) recordings. The challenge of S. litura antennae to a pulse train of its own pheromone blends of Z9,E11-14:OAc and Z9,E12-14:OAc with 200 ms on/off and 1 s on/off indicated that the repetitive stimulation by 200 ms on/off with high dosages resulted in greater adaptation than that by 1 s on/off with low dosages and the adaptation index of Z9,E11-14:OAc in all treatments is significantly larger than that of Z9,E12-14:OAc, suggesting that high dosages with more frequent stimulation prefer to induce sensory adaptations and a different odor coding exist between the two components in the antennal periphery in this moth. The cross-adaptation EAG test among the two pheromone compounds and Z7-12:OAc and Z9-14:OH from congeneric species of S. litura showed that each of these compounds adapted the antenna more to that specific compound. The significantly higher adaptation to Z7-12:OAc and Z9-14:OH than to the pheromone components of S. litura induced by themselves suggested that both of them are coded by specific odor receptor neurons which are different from those tuned to the pheromone components of S. litura . Thus, we proposed that Z7-12:OAc and Z9-14:OH may play an important role in avoidance of heterospecific mating between S. litura and its sympatric moth species.","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84960456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.7852/IJIE.2016.33.2.78
S. Bae, You-Young Jo, Kwang-gill Lee, Hyun-bok Kim, H. Kweon
The antioxidant activity of silkworm powder treated by proteolytic enzyme was investigated. Total protein content of silkworm power was assayed using BCA, Bradford assays and SDS-polyacrylamide gel electrophoresis (PAGE) with alkaline protease treatment conditions including temperature and pH. The optimum condition of alkaline protease treatment for silkworm powder was found to be 60℃ and pH 7. The alkaline protease treatment resulted in increased contents of free amino acids, total polyphenol and total flavonoid compared to control group. The silkworm hydrolysates showed excellent antioxidant activities in various in vitro models such as 2,2 diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, 2,2 - azino-bis(3-ethylbenzthiazoline-6)-sulfonic acid (ABTS) radical scavenging activity. These results provide useful information for using silkworm powder as an ingredient in functional foods and for exploiting alkaline protease treatment to improve the extractability and bioactivity of a raw material.
{"title":"Antioxidant activity of silkworm powder treated with protease","authors":"S. Bae, You-Young Jo, Kwang-gill Lee, Hyun-bok Kim, H. Kweon","doi":"10.7852/IJIE.2016.33.2.78","DOIUrl":"https://doi.org/10.7852/IJIE.2016.33.2.78","url":null,"abstract":"The antioxidant activity of silkworm powder treated by proteolytic enzyme was investigated. Total protein content of silkworm power was assayed using BCA, Bradford assays and SDS-polyacrylamide gel electrophoresis (PAGE) with alkaline protease treatment conditions including temperature and pH. The optimum condition of alkaline protease treatment for silkworm powder was found to be 60℃ and pH 7. The alkaline protease treatment resulted in increased contents of free amino acids, total polyphenol and total flavonoid compared to control group. The silkworm hydrolysates showed excellent antioxidant activities in various in vitro models such as 2,2 diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, 2,2 - azino-bis(3-ethylbenzthiazoline-6)-sulfonic acid (ABTS) radical scavenging activity. These results provide useful information for using silkworm powder as an ingredient in functional foods and for exploiting alkaline protease treatment to improve the extractability and bioactivity of a raw material.","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86284830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.7852/IJIE.2016.33.2.132
Y. Bae, Chunho Kim, D. Bae, I. Um
Although silk textile shows excellent performance when used in clothing over a long period, its limited elongation and elasticity have restricted its extension to other textile and non-textile applications. In the present study, silk textile was produced using silk/ polyurethane core-spun yarn and degummed to enhance its elongation and elasticity. The effects of degumming on the structure and mechanical properties of the silk textile were examined. Scanning electron microscopy observation revealed that the silk filaments became finer and more flexible with degumming, resulting in increased tangling of weft yarns and a highly shrunk textile structure in the weft direction. Although the strength of the degummed silk textile was decreased, its elongation greatly increased by 383% (a 16-fold increase) because of the degumming treatment. In particular, the elasticity of the silk textile was greatly improved. The silk textile exhibited ~30% reduction in the elongation after the second extension; however, the elongation almost did not change after 18 additional extension–recovery tests. its use in other textile and non-textile applications. In a previous study, as a preliminary work, silk textile was made with silk/ polyurethane core-spun yarn and treated with hot water to improve its elongation and elasticity and Um, 2016). However, the results were unpromising, with the silk textile exhibiting 96.7% elasticity, even although it was just extended by an elongation of 20%. In the present study, the silk textile made with silk/ polyurethane core-spun yarn was degummed to enhance its elasticity, and the effects of degumming on the structure and mechanical properties of the silk textile were examined.
{"title":"Effect of degumming on structure and mechanical properties of silk textile made with silk/polyurethane core-spun yarn","authors":"Y. Bae, Chunho Kim, D. Bae, I. Um","doi":"10.7852/IJIE.2016.33.2.132","DOIUrl":"https://doi.org/10.7852/IJIE.2016.33.2.132","url":null,"abstract":"Although silk textile shows excellent performance when used in clothing over a long period, its limited elongation and elasticity have restricted its extension to other textile and non-textile applications. In the present study, silk textile was produced using silk/ polyurethane core-spun yarn and degummed to enhance its elongation and elasticity. The effects of degumming on the structure and mechanical properties of the silk textile were examined. Scanning electron microscopy observation revealed that the silk filaments became finer and more flexible with degumming, resulting in increased tangling of weft yarns and a highly shrunk textile structure in the weft direction. Although the strength of the degummed silk textile was decreased, its elongation greatly increased by 383% (a 16-fold increase) because of the degumming treatment. In particular, the elasticity of the silk textile was greatly improved. The silk textile exhibited ~30% reduction in the elongation after the second extension; however, the elongation almost did not change after 18 additional extension–recovery tests. its use in other textile and non-textile applications. In a previous study, as a preliminary work, silk textile was made with silk/ polyurethane core-spun yarn and treated with hot water to improve its elongation and elasticity and Um, 2016). However, the results were unpromising, with the silk textile exhibiting 96.7% elasticity, even although it was just extended by an elongation of 20%. In the present study, the silk textile made with silk/ polyurethane core-spun yarn was degummed to enhance its elasticity, and the effects of degumming on the structure and mechanical properties of the silk textile were examined.","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86174963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.7852/IJIE.2016.33.2.92
K. Park, W. Kim, Eun Sun Kim, Ji-Young Choi, Sung-hyun Kim
The black soldier fly is economically important because its prepupae are used as feed for many animals, including fish and swine. In Korea, black-soldier-fly farms have attempted to increase annual breeding and mass egg production for use in animal feed, as well as the decomposition of organic waste. Such efforts require an understanding of optimal mating and oviposition techniques. Specifically, adult densities and cage size may both improve the efficiency of mass egg production. Our study used four sizes of nylon cages (1.0 × 1.0 × 2.5 m, 1.5 × 1.5 × 2.5 m, 2.0 × 2.0 × 2.5 m, 2.5 × 2.5 × 2.5 m) and three density treatments (4 kg, 8 kg, and 10 kg of pupae) to investigate optimal habitat size and adult density. We found that cage size (independent of density) did not significantly influence female fecundity (number of egg clutches and egg weight), whereas higher densities increased egg number and weight regardless of cage size. Thus, we recommend manipulating adult density to enhance productivity in commercial black-soldier-fly farming. However, we also propose further detailed research to develop methods that account for seasonal changes and environmental conditions, as climatic variables (temperature, sunlight) likely influence female fecundity as well.
{"title":"Effect of adult population density on egg production in the black soldier fly, Hermetia illucens (Diptera: Stratiomyidae)","authors":"K. Park, W. Kim, Eun Sun Kim, Ji-Young Choi, Sung-hyun Kim","doi":"10.7852/IJIE.2016.33.2.92","DOIUrl":"https://doi.org/10.7852/IJIE.2016.33.2.92","url":null,"abstract":"The black soldier fly is economically important because its prepupae are used as feed for many animals, including fish and swine. In Korea, black-soldier-fly farms have attempted to increase annual breeding and mass egg production for use in animal feed, as well as the decomposition of organic waste. Such efforts require an understanding of optimal mating and oviposition techniques. Specifically, adult densities and cage size may both improve the efficiency of mass egg production. Our study used four sizes of nylon cages (1.0 × 1.0 × 2.5 m, 1.5 × 1.5 × 2.5 m, 2.0 × 2.0 × 2.5 m, 2.5 × 2.5 × 2.5 m) and three density treatments (4 kg, 8 kg, and 10 kg of pupae) to investigate optimal habitat size and adult density. We found that cage size (independent of density) did not significantly influence female fecundity (number of egg clutches and egg weight), whereas higher densities increased egg number and weight regardless of cage size. Thus, we recommend manipulating adult density to enhance productivity in commercial black-soldier-fly farming. However, we also propose further detailed research to develop methods that account for seasonal changes and environmental conditions, as climatic variables (temperature, sunlight) likely influence female fecundity as well.","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88472014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.7852/IJIE.2016.33.2.138
S. Kim, I. Um
In the present study, silk fibroin (SF) was dissolved in CaCl 2 /H 2 O/EtOH solution at 85 o C. After the dissolution, the SF solution was cooled down and stored at 4 o C for 28 d. The stability of the solution’s viscosity and electrospinnability was observed to examine the stability of SF molecules during storage in CaCl 2 /H 2 O/EtOH solution. The viscosities of SF/CaCl 2 /H 2 O/ EtOH solution and SF formic acid solution did not change during 28 days’ storage of SF in CaCl 2 /H 2 O/EtOH solution. The electrospinnability of the SF solution, mean diameter of the electrospun SF fiber, and crystallinity index of electrospun SF web did not change, regardless of the length of the storage period. These results imply that SF molecules do not degrade during 28 days’ storage in CaCl 2 /H 2 O/EtOH solution.
{"title":"Storage stability of silk solution for viscosity and electrospinnability","authors":"S. Kim, I. Um","doi":"10.7852/IJIE.2016.33.2.138","DOIUrl":"https://doi.org/10.7852/IJIE.2016.33.2.138","url":null,"abstract":"In the present study, silk fibroin (SF) was dissolved in CaCl 2 /H 2 O/EtOH solution at 85 o C. After the dissolution, the SF solution was cooled down and stored at 4 o C for 28 d. The stability of the solution’s viscosity and electrospinnability was observed to examine the stability of SF molecules during storage in CaCl 2 /H 2 O/EtOH solution. The viscosities of SF/CaCl 2 /H 2 O/ EtOH solution and SF formic acid solution did not change during 28 days’ storage of SF in CaCl 2 /H 2 O/EtOH solution. The electrospinnability of the SF solution, mean diameter of the electrospun SF fiber, and crystallinity index of electrospun SF web did not change, regardless of the length of the storage period. These results imply that SF molecules do not degrade during 28 days’ storage in CaCl 2 /H 2 O/EtOH solution.","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73676495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.7852/IJIE.2016.33.2.50
Seonghyun Kim, Haechul Park, I. Park
The size of head capsule is one of the most important factors for identifying developmental stage. In order to understand the developmental characteristics of the butterfly Atrophaneura alcinous, we examined fluctuations in larval head capsule size under three different temperature conditions (20, 25, and 30°C) and 60% humidity. As a result, larvae developed to the fifth instar at all three temperatures. The head capsule size of larvae tended to be larger at the lowest temperature and smaller at the highest temperature. The development rate showed a regular change, consistent with Dyar’s rule regarding head capsule size development. Furthermore, the development of head capsule size was found to correspond to a second degree polynomial regression better than to a linear regression. On the basis of these results, it would appear to be possible to perform an accurate assessment of instar status during the development of A. alcinous.
{"title":"Larval growth and the effect of temperature on head capsule size in Atrophaneura alcinous (Lepidoptera: Papilionidae)","authors":"Seonghyun Kim, Haechul Park, I. Park","doi":"10.7852/IJIE.2016.33.2.50","DOIUrl":"https://doi.org/10.7852/IJIE.2016.33.2.50","url":null,"abstract":"The size of head capsule is one of the most important factors for identifying developmental stage. In order to understand the developmental characteristics of the butterfly Atrophaneura alcinous, we examined fluctuations in larval head capsule size under three different temperature conditions (20, 25, and 30°C) and 60% humidity. As a result, larvae developed to the fifth instar at all three temperatures. The head capsule size of larvae tended to be larger at the lowest temperature and smaller at the highest temperature. The development rate showed a regular change, consistent with Dyar’s rule regarding head capsule size development. Furthermore, the development of head capsule size was found to correspond to a second degree polynomial regression better than to a linear regression. On the basis of these results, it would appear to be possible to perform an accurate assessment of instar status during the development of A. alcinous.","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89889098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.7852/IJIE.2016.33.2.102
M. Kang, Kwangho Choi, K. Park, S. Nho
{"title":"Identification of the genes which related cold (low temperature) stress in Bombyx mori","authors":"M. Kang, Kwangho Choi, K. Park, S. Nho","doi":"10.7852/IJIE.2016.33.2.102","DOIUrl":"https://doi.org/10.7852/IJIE.2016.33.2.102","url":null,"abstract":"","PeriodicalId":14140,"journal":{"name":"International journal of industrial entomology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78489484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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