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Application of electric pulsed power on fruit body production of edible and medicinal mushrooms
Ohga, Shoji Institute of Agricultural Science 2012 Korean Journal of Agricultural Science Vol.39 No.4
Effect of pulsed power was investigated on fruit body formation of 10 edible mushrooms, Lentinula edodes, Glifola frondosa, Pholiota nameko, Flammulina velutipes, Hypsizygus marmoreus, Pleurotus ostreatus, Pleurotus eryngii, Pleurotus abalonus, Agrocybe cylindracea and Sparassis crispa. Pulsed power of 100-170 kV was directly charged to the substrate just before fructification. The effect of the pulsed power resulted to promote for 10 edible mushrooms fructification. The treatment especially stimulated the fructification on Pleurotus species.
Application of electric pulsed power on fruit body production of edible and medicinal mushrooms
Shoji Ohga 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.4
Effect of pulsed power was investigated on fruit body formation of 10 edible mushrooms, Lentinula edodes, Glifola frondosa, Pholiota nameko, Flammulina velutipes, Hypsizygus marmoreus, Pleurotus ostreatus, Pleurotus eryngii, Pleurotus abalonus, Agrocybe cylindracea and Sparassis crispa. Pulsed power of 100-170 ㎸ was directly charged to the substrate just before fructification. The effect of the pulsed power resulted to promote for 10 edible mushrooms fructification. The treatment especially stimulated the fructification on Pleurotus species.
Application of electric pulsed power on fruit body production of edible and medicinal mushrooms
Ohga Shoji 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.4
Effect of pulsed power was investigated on fruit body formation of 10 edible mushrooms, Lentinula edodes, Glifola frondosa, Pholiota nameko, Flammulina velutipes, Hypsizygus marmoreus, Pleurotus ostreatus, Pleurotus eryngii, Pleurotus abalonus, Agrocybe cylindracea and Sparassis crispa. Pulsed power of 100-170 kV was directly charged to the substrate just before fructification. The effect of the pulsed power resulted to promote for 10 edible mushrooms fructification. The treatment especially stimulated the fructification on Pleurotus species.
Shoji Ohga,Hiroaki Yoshimoto,Chandra Pokhrel,Yang, Baisong,Noriko Miyazawa,Tianxiao Meng,Shun Hosoda,Masuo Mae,Zhu Sun 충남대학교 농업과학연구소 2008 농업과학연구 Vol.35 No.2
Mycelial expansion and fruit body development of caterpillar fungi, Cordyceps sobolifera(Hill.) Berk. et Br. was examined on various carbon and nitrogen sources, some substrates with various supplements. Best temperature for the mycelial expansion was 25℃, while optimal pH was 7. Glucose and polypeptone were the best sources of carbon and nitrogen, respectively, as well as 1:1 was the best ratio of carbon and nitrogen. The unpolish rice and bean curd lees were used as core substrates combined individually with five various supplements. In substrates based, all the supplements with all combinations were found to exhibit the mycelial growth and fruit body formation. Likewise, yolk was found as a superior supplement and also clarified quite high polysaccharide content in the fruit body.
Ohga, Shoji,Yoshimoto, Hiroaki,Pokhrel, Chandra,Yang, Bai-Song,Miyazawa, Noriko,Meng, Tianxiao,Hosoda, Shun,Mae, Masuo,Sun, Zhu Institute of Agricultural Science 2008 Korean Journal of Agricultural Science Vol.35 No.2
Mycelial expansion and fruit body development of caterpillar fungi, Cordyceps sobolifera(Hill.) Berk. et Br. was examined on various carbon and nitrogen sources, some substrates with various supplements. Best temperature for the mycelial expansion was $25^{\circ}C$, while optimal pH was 7. Glucose and polypeptone were the best sources of carbon and nitrogen, respectively, as well as 1:1 was the best ratio of carbon and nitrogen. The unpolish rice and bean curd lees were used as core substrates combined individually with five various supplements. In substrates based, all the supplements with all combinations were found to exhibit the mycelial growth and fruit body formation. Likewise, yolk was found as a superior supplement and also clarified quite high polysaccharide content in the fruit body.
일본잎갈나무재의 수용성추출물 첨가가 표고버섯의 톱밥재배에 미치는 영향
조남석,정홍채,김동훈,이상선,Ohga, Shoji,Leonowicz, A. 한국목재공학회 2004 목재공학 Vol.32 No.1
표고버섯(Lentinula edodes)의 생장이 매우 좋았던 일본잎갈나무재의 수용성 추출물(water-soluble fraction, WSF)을 분리하여 구성당을 분석한 결과, rhamnose 및 mannose는 거의 없고, glucose도 2.2%로 매우 낮았으며, arabinose가 18.3%, galactose가 75.3%로서 가장 많이 함유되어 있었다. 정제된 추출물의 arabinose와 galactose의 함량비는 1 : 3.4였다. 정제된 WSF를 완전메틸화·가수분해·가스크로마토그래피에 의하여 분석한 결과, β-1,3 결합한 D-galactopyranose가 주쇄를 이루며, 이에 galactose의 C6위에 측쇄로서 β-1,6 결합한 D-galactose와, β-1,6 결합한 L-arabinose가 존재하며, 전자는 2-3개의 D-galactopyranose가 결합을 하고 있고, 후자는 L-arabinofuranose가 1-2개 중간의 측쇄구조를 이루고, 말단은 L-arabinopyranose로 구성되어 있었다. PDA배지에 WSF첨가로 표고의 균사 생장이 매우 증진되었으며, 2-4% 첨가수준에서 균사 생장이 최대였고, 첨가량이 더 많으면 균사의 생장이 오히려 감소되었다. 톱밥배지에서도 PDA 배지에서의 결과와 마찬가지로 WSF첨가로 균사 생장이 증진되었으며, 산림 6호 및 Mok-H의 경우 모두 4% 첨가에서 균사의 생장이 최대로 나타났다. 톱밥배지에 WSF 첨가가 버섯생산량을 증가시켰는바, Mok-H의 경우 무첨가에 비해 약 1.3배, 산림 6호의경우 1.2배 증수되었다. 버섯균 세포벽의 주성분인 ergosterol 함량변화를 측정한 결과, WSF첨가로 미첨가에 비하여 ergosterol의 함량이 증가하였으며, 균사가 콜로니를 형성하는 초기단계에서는 낮은 ergosterol함량을 나타냈으나 자실체가 형성되는 시기에 급격히 높아지는 결과를 나타냈다. 따라서 배지내의 ergosterol함량이 자실체형성의 주요 예측수단으로 이용될 수 있을 것으로 판단된다. The water soluble fractions(WSF) from Japanese larch wood were isolated, purified by anion exchange resin and Sephadex gel filtration and identified its chemical structure by means of periodate oxidation and methylation reactions. Its major components are arabinose and galactose (1 : 3.4). Based on the results of periodate oxidation, methylation and gas chromatographic analysis of purified WSF, main chain is composed of β-1.3-glycosidic linkage among D-galactopyranoses, and two different side chains; β -1,6-glycosidic linkage among 2-3 units of D-galactopyranoses and β-1,6-glycosidic linkage between 1-2 units of Dgalactopyranose and L-arabinopyranose. Addition of WSF to culture media of oak mushroom (Lentinulu edodes) accelerated the mycelial growth. In the case of PDA cultures, 2 percent addition of WSF in Sanlim No. 6 strain and 4 percent of WSF in Mok-H strain mostly enhanced the mycelial growth of the mushroom. In the case of sawdust cultures, 4 percent addition of WSF in two strains showed the best mycelial growth. High percentages addition of WSF inhibited mycelial growth of the mushroom. Mushroom production was increased with addition of WSF. By the addition of WSF, ergosterol contents in the media were quite high at the colonized stage and rapidly increased at the fruiting stage. Therefore the ergosterol content could be utilized as an indicator to evaluate the culture maturity for the mushroom fruiting.
Islam, Ferzana,Islam, Afsana,Ohga, Shoji Institute of Agricultural Science 2013 Korean Journal of Agricultural Science Vol.40 No.1
Effect of electric pulse stimulation was tested on the fruit body formation of valuable mushroom Tricholoma matsutake in the field of natural habitat of this mushroom. After applying the electric stimulator to the specific area of pine forest we found that the treatment especially stimulated the fructification of T. matsutake. And the most valuable findings of our study was that only our treatment plots showed fruit body formation whereas the control plots and the whole natural habitats of our study area showed zero production of this mushroom during the same time. From the point of view of mushroom production, our experiment shows that fruit body production can be upgraded by using pulsed power as an electrical stimulation in the field of the natural habitat of this mushroom. These findings from our experiment confirm the effectiveness of the significance of pulsed power technology for the improvement of T. matsutake fruit body production in the natural habit of this mushroom.