• 한국식품영양학회지
• /
• 제30권4호
• /
• pp.665-672
• /
• 2017

The anti-diabetic effect of dried-silkworm Dongchunghacho water extracts was investigated in streptozotocin (STZ)-induced diabetic rats. Seven-week-old SD rats were randomly assigned to six groups: normal control (NC) group, diabetic control (DC) group, water extracts of Paecilomyces japonica grown on a dried-silkworm (PJ-DS, 50 mg/kg) group, PJ-DS (250 mg/kg) group, water extracts of Cordyceps militaris grown on a dried-silkworm (CM-DS, 250 mg/kg) group, and water extracts of dried-silkworm (DS, 250 mg/kg) group. These groups were orally provided with sample dissolved in water respectively for four weeks after an injection of STZ (60 mg/kg, ip) followed by identification of diabetic control (DC) group. After four weeks, body weight of all diabetic groups was significantly lower than that of the normal control (NC) group, but among diabetic groups there were no significant differences. Blood glucose levels of the PJ-DS (50 mg/kg), PJ-DS (250 mg/kg), CM-DS (250 mg/kg) and DS (250 mg/kg) groups were reduced compared to the DC group by 3.0 percent, 18.5 percent, 6.9 percent and 13.1 percent, respectively. Concentration of total cholesterol and triglyceride in blood plasma were to some degree decreased in PJ-DS (250 mg/kg) and DS (250 mg/kg) groups compared to the DC group. According to these results dried-silkworm Dongchunghacho water extracts (PJ-DS) boost protection against STZ-induced toxicity.

• International Journal of Industrial Entomology and Biomaterials
• /
• 제39권1호
• /
• pp.34-38
• /
• 2019

In this study, we investigated the effect of silkworm, and its by-products on exercise endurance, muscle mass, and fatigue recovery using ICR mice model. Powders of silkworm, pupae, dongchunghacho, and silk powder were suspended in water and feed to mice for 2 weeks. The forced swimming time was increased by 4.3, 4.1 and 2.8 seconds after silkworm, pupae, and dongchughacho administration compared to DW fed group. Increases in exercise ability were achieved by difference mechanism according to feeding materials. Pupae increased muscle mass by 129% compared with the control group which may effect on elongation of swimming time. Dongchunghacho improved the plasma concentrations of fatigue markers such as creatinine, blood urea nitrogen (BUN), and D-lactate. Silkworm administration showed dual effect, the muscle mass induction (114% vs. control) and anti-fatigue (plasma creatinine, BUN, and D-lactate were 63, 75, and 78% vs. con) effect which contributed most elongated swimming time. In conclusion, silkworm and its by-products including pupae and dongchunghacho with the predominant protein and bioactive components improved muscle mass and showed anti-fatigue effect which could promote exercise performance ability.

• International Journal of Industrial Entomology and Biomaterials
• /
• 제2권1호
• /
• pp.83-86
• /
• 2001

Effects of photoperiods, 24L or 24D, on the growth of the silkworm-dongchunghacho, the silkworm vegetable wasp and plant worm, were investigated. Exposure of the fungi under the photoperiod of 24L for at least 3 days during the cultivation of the fungi after the completion of endosclerotium in the host accelerated the spore formations but the growth of the fruiting bodies was inhibited. On the contrary, the photoperiod of 24D inhibited the spore formation, but accelerated the growth of fruiting bodies without spores. Accordingly, to produce silkworm vegetable wasp and plant worm of large-size fruiting bodies with over 3 cm in length, it is indicated that recommendable light condition is a photoperiod of 24D during the cultivation until the length of the fruiting body arrives at over 3 cm.

• 생명과학회지
• /
• 제27권2호
• /
• pp.247-266
• /
• 2017

동충하초(Cordyceps)는 B.C. 2,000년 이후로부터 지금까지 중국, 한국, 일본 등 아시아 국가에서 잘 알려진 전통적인 불로장생의 비약으로 사용되어져 왔다. 곤충기생 곰팡이균으로서 원조 동충하초로 불리는 Cordyceps속에 속하는 Cordyceps sinensis는 우리나라 한반도에서는 발견되지 않고 있다. 그 이유는 해당 곰팡이균에 특정적인 기주곤충인 박쥐나방(Hepialus armonicanus)이 우리나라에는 존재하지 않기 때문으로 보인다. 따라서 차선책으로서 한국형의 동충하초, 즉 Paecilomyces tenuipes 동충하초균에 대한 곤충생체배지로서 누에(Silkworm, Bombyx mori)를 기주곤충으로 사용하는 누에동충하초의 인공적인 생산방법을 세계 최초로 개발하게 된 것이다. 따라서 본 총설은 누에동충하초를 개발하게 된 역사적 배경과 생산방법 및 약리학적 효능과, 비곤충유래 동충하초인 인공배지 배양동충하초(밀리타리스동충하초: Cordyceps militaris, 붉은자루동충하초: Cordyceps pruinosa 등)의 배양조건과 동충하초 품종육성, 배지배양조건, 동충하초의 식품에의 응용 가능성, 화학적 구성성분 및 약리적 효능 등에 대해 고찰하였다. 곤충유래의 누에동충하초 및 비곤충유래동충하초균사체 및 자실체동충하초의 주요 약리작용은 항종양, 면역증강, 항피로, 항스트레스, 항산화, 항노화, 항당뇨, 항염증, 항혈전, 항지질 및 해충방제 효능으로 요약된다. 동충하초의 주요 생리활성물질들은 단백다당체(헥소스, 헥소사민), 코디세핀, 만니톨, 산성다당체 등이다. 단백다당체와 부타놀 추출물은 매우 강한 항종양 효과를 보이나 세포독성은 나타내지 않았다. 만니톨은 종양유발쥐의 수명을 유의성 있게 연장하였다. 에르고스테롤은 항종양 활성은 보이지 않았으나 왕성한 식세포활성을 보였다. 따라서 우리가 높은 관심을 가지고 있는 누에동충하초의 항종양 활성은 세포독성효과보다는 면역력증강효과에 기인하는 것으로 사료된다[164].

• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2001년도 제31회 학술심포지움 및 춘계학술대회
• /
• pp.53-53
• /
• 2001

• International Journal of Industrial Entomology and Biomaterials
• /
• 제3권1호
• /
• pp.105-108
• /
• 2001

The wild entomopathogenic fungi, Cordyceps militaris, were collected at the Whawang mountain, Korea. The pupae of the silkworm, Bombyx mori, were used as infecting hosts for the production of the silkworm-mili-taris dongchunhacho, silkworm vegetable wasps and plant worms with C. militaris. Three inoculation methods in terms of injection, spray and immersion were tested against the silkworm pupae. The three inocu1ation methods revealed 100% infectivity to the silkworm pupae tested. Of the three inoculation methods, the injection method was highly effective in the reduction of the period required for the endosclerotium and the completion of fruiting body formation. These results indicate that the silkworm pupae are very effective host insects for the production of C. militaris.

• 한국잠사학회:학술대회논문집
• /
• 한국잠사학회 2001년도 제44회 춘계 학술연구 발표자료
• /
• pp.40-40
• /
• 2001

No Abstract. See Full-text

• 한국잠사학회:학술대회논문집
• /
• 한국잠사학회 2005년도 제48회 추계 학술연구 발표회
• /
• pp.25-25
• /
• 2005

• 한국응용곤충학회:학술대회논문집
• /
• 한국응용곤충학회 2001년도 합동 춘계 학술발표회
• /
• pp.112-112
• /
• 2001

• 한국잠사곤충학회지
• /
• 제45권1호
• /
• pp.31-33
• /
• 2003

본 연구는 눈꽃동충하초속균과 번데기동충하초균의 적정 보관온도 및 모균주 보존기간에 따른 동충하초속균의 활성을 검정하기 위해 수행하였다. 보급종균(액체종균)의 보관온도 및 보관일수별 활성 검정에서 4$^{\circ}C$에서 10일간 보관시 누에 감염율 및 자실체 형성율이 각각 88.0%, 96.2%로 대조구와 비슷한 높은 활성을 나타냈으나, $25^{\circ}C$ 보관시에는 감염율이 급격히 저하(5% 이하)하였다. 또한 모균주 보존기간별 조사에서 4$^{\circ}C$ 보존구가 냉동보존(-2$0^{\circ}C$, -7$0^{\circ}C$) 및 동결건조보존법에 비하여 우수하였고 대조구와 비교시에도 유의성이 없었으며 12개월 보존시에도 감염율 90% 이상이었다. 따라서 본 시험 결과로 볼 때 눈꽃동충하초(Paecilomyces tenuipes) 및 번데기동충하초균(Cordyceps militaris)을 냉장보존(4$^{\circ}C$)이 가장 적당하다고 생각된다.