Phanerochaete chrysosporium PSBL-1 생물막을 이용한 오,폐수 처리 및 부착특성

이순영(Soon Young Lee),강기철(Ki Cheol Kang),원찬희(Chan Hee Won) 大韓環境工學會 2008 대한환경공학회지 Vol.30 No.3

난분해성물질 함유폐수에 대해 유지관리가 용이하며 저비용-저에너지 고효율적인 새로운 수 처리 방식인 대기노출형 백색부후균 생물막 공법을 적용하기 위한 기초실험을 실시하였다. 먼저 난분해성물질을 함유한 오?폐수 처리에 가장 효율적인 백색부후균 종을 선정하기 위해 백색부후균 3종 및 활성슬러지에 대한 처리특성을 조사하였으며, 선정된 백색부후균 P. chrysosporium PSBL-1에 대해서 HBC링 여재에 대한 부착 및 탈착특성을 조사하였다. 백색부후균 3종(P. chrysosporium PSBL-1, P. chrysosporium KCTC 6147, Trametes sp. KFCC 10941)의 pH에 따른 처리특성을 조사한 결과 NBDCOD 제거율은 P. chrysosporium PSBL-1과 P. chrysosporium 6147가 pH 3.5~5.5에서 각각 51~59.8%, 57.5~60.3%로 비슷한 결과를 나타냈으나, TN 제거율은 pH 4.5~11.5에서 각각 39.3~85.3%, 3.4~7.6%로 현저한 차이를 나타내고 있다. 유기물 및 질소 동시제거 특성을 고려하여 백색부후균 P. chrysosporium PSBL-1을 선정하였다. 백색부후균 P. chrysosporium PSBL-1은 부유상태의 초기농도 4,600 mg/L에서 HBC링 여재 부착시작 5분후 pH 4, 7, 10에서 각각 4,538 mg/L, 4,546 mg/L, 4,531 mg/L, 10분 후 4,575 mg/L, 4,573 mg/L, 4,568 mg/L로 5분 이후에는 미생물 부착이 거의 되지 않았다. HBC링 여재에 부착된 P. chrysosporium PSBL-1을 10일 동안 1일 간격으로 탈착량을 조사한 결과 탈착량은 거의 미미하였다. The biofilm of white-rot fungi fully exposed in atmosphere are that operation is easy, management cost and energy waste is low. To develop biofilm of white-rot fungi fully exposed in atmosphere, basic test are as follows. To select most effective microoganism species, investigated treatment characteristics of wastewater containing non-biodegradable material for three species of white-rot fungi(Phanerochaete chrysosporium PSBL-1, Phanerochaete chrysosporium KCTC 6147, Trametes sp. KFCC 10941) and activated sludge. And then investigated attached and detached biomass of selected white-rot fungi species on HBC ring surface. Among the three strains tested, P. chrysosporium PSBL-1 and P. chrysosporium KCTC 6147 showed higher efficiency for organics removal than Trametes sp. KFCC 10941, and P. chrysosporium PSBL-1 showed higher efficiency for nitrogen removal than P. chrysosporium KCTC 6147 and Trametes sp. KFCC 10941. Respectively, 51~59.8%, 57.5~60.3% of NBDCOD was removed for P. chrysosporium PSBL-1 and P. chrysosporium 6147 in pH 3.5~5.5. TN removal efficiency showed 39.3~85.3%, 3.4~7.6% for P. chrysosporium PSBL-1 and P. chrysosporium 6147 in pH 4.5~11.5 respectively. Considered that white-rot fungi remove organism and nitrogen simultaneously, the microorganism selected white-rot fungi P. chrysosporium PSBL-1. White-rot fungi P. chrysosporium PSBL-1 attached on HBC ring surface 4,538 mg/L, 4,546 mg/L, 4,531 mg/L after 5 minutes, 4,575 mg/L, 4,573 mg/L, 4,568 mg/L after 10 minutes from initial MLSS 4,600 mg/L in pH 4, 7 and 10 respectively. Also detached biomass is negligible from right after attachment to 10 day in pH 4, 7 and 10.

Biological Pretreatment of Softwood Pinus densiflora by Three White Rot Fungi

Lee, Jae-Won,Gwak, Ki-Seob,Park, Jun-Yeong,Park, Mi-Jin,Choi, Don-Ha,Kwon, Mi,Choi, In-Gyu The Microbiological Society of Korea 2007 The journal of microbiology Vol.45 No.6

The effects of biological pretreatment on the Japanese red pine Pinus densiflora, was evaluated after exposure to three white rot fungi Ceriporia lacerata, Stereum hirsutum, and Polyporus brumalis. Change in chemical composition, structural modification, and their susceptibility to enzymatic saccharification in the degraded wood were analyzed. Of the three white rot fungi tested, S. hirsutum selectively degraded the lignin of this sortwood rather than the holocellulose component. After eight weeks of pretreatment with S. hirsutum, total weight loss was 10.7%, while lignin loss was the highest at 14.52% among the tested samples. However, holocellulose loss was lower at 7.81 % compared to those of C. lacerata and P. brumalis. Extracelluar enzymes from S. hirsutum showed higher activity of ligninase and lower activity of cellulase than those from other white rot fungi. Thus, total weight loss and changes in chemical composition of the Japanese red pine was well correlated with the enzyme activities related with lignin- and cellulose degradation in these fungi. Based on the data obtained from analysis of physical characterization of degraded wood by X-ray Diffractometry (XRD) and pore size distribution, S. hirsutum was considered as an effective potential fungus for biological pretreatment. In particular, the increase of available pore size of over 120 nm in pretreated wood powder with S. hirsutum made enzymes accessible for further enzymatic saccharification. When Japanese red pine chips treated with S. hirsutum were enzymatically saccharified using commercial enzymes (Cellulclast 1.5 L and Novozyme 188), sugar yield was greatly increased (21.01 %) compared to non-pre treated control samples, indicating that white rot fungus S. hirsutum provides an effective process in increasing sugar yield from woody biomass.

Biological Pretreatment of Softwood Pinus densiflora by Three White Rot Fungi

이재원,Ki-Seob Gwak,Jun-Yeong Park,Mi-Jin Park,Don-Ha Choi,Mi Kwon,최인규 한국미생물학회 2007 The journal of microbiology Vol.45 No.6

The effects of biological pretreatment on the Japanese red pine Pinus densiflora, was evaluated after exposure to three white rot fungi Ceriporia lacerata, Stereum hirsutum, and Polyporus brumalis. Change in chemical composition, structural modification, and their susceptibility to enzymatic saccharification in the degraded wood were analyzed. Of the three white rot fungi tested, S. hirsutum selectively degraded the lignin of this sortwood rather than the holocellulose component. After eight weeks of pretreatment with S. hirsutum, total weight loss was 10.7%, while lignin loss was the highest at 14.52% among the tested samples. However, holocellulose loss was lower at 7.81% compared to those of C. lacerata and P. brumalis. Extracelluar enzymes from S. hirsutum showed higher activity of ligninase and lower activity of cellulase than those from other white rot fungi. Thus, total weight loss and changes in chemical composition of the Japanese red pine was well correlated with the enzyme activities related with lignin- and cellulose degradation in these fungi. Based on the data obtained from analysis of physical characterization of degraded wood by X-ray Diffractometry (XRD) and pore size distribution, S. hirsutum was considered as an effective potential fungus for biological pretreatment. In particular, the increase of available pore size of over 120 nm in pretreated wood powder with S. hirsutum made enzymes accessible for further enzymatic saccharification. When Japanese red pine chips treated with S. hirsutum were enzymatically saccharified using commercial enzymes (Cellulclast 1.5 L and Novozyme 188), sugar yield was greatly increased (21.01%) compared to non-pretreated control samples, indicating that white rot fungus S. hirsutum provides an effective process in increasing sugar yield from woody biomass.

Indirect Bacterial Effect Enhanced Less Recovery of Neonicotinoids by Improved Activities of White-Rot Fungus Phlebia brevispora

( Joy L. Harry-asobara ),( Ichiro Kamei ) 한국미생물생명공학회(구 한국산업미생물학회) 2019 Journal of microbiology and biotechnology Vol.29 No.5

Bacterial strains that improve mycelial morphology and growth of white-rot fungi in liquid medium could enhance the impact of white-rot fungi towards lesser recovery of neonicotinoids when cocultured. This was demonstrated by the recovery of clothianidin and acetamiprid from cocultures of the white-rot fungus Phlebia brevispora strains with two mycelial-growth-promoting bacteria, Enterobacter sp. TN3W-14 and Pseudomonas sp. TN3W-8. Clothianidin recovery from cocultures of white-rot fungi and bacteria was over 40% lower than that from axenic microbial cultures and mixed-bacterial cultures. About 20% less acetamiprid was equally recovered from both TMIC33929+TN3W-14 cocultures and mixedbacterial cultures than from axenic fungal and bacterial cultures.

염료의 색도 제거능력이 우수한 백색부후균 분리 및 특성 연구

오광근,김현수,조무환,채영규,전영중 한국산업미생물학회 1999 한국미생물·생명공학회지 Vol.27 No.6

한국에서 자생하는 버섯으로부터 염료의 색도 제거능력이 우수한 균주를 분리하기 위하여 각종 염료를 함유한 평판배지 상에서 성장성과 색도 변화를 관찰한 결과 우수한 균체 성장과 색도 제거능력을 지닌 3가지 균주를 최종 선별하였으며, 선별된 균주의 특성을 조사하여 Trametes sp. CJ-105, Pleurotus sp. CJ-212, Fomes sp. CJ-315로 동정하였다. 이 균주들은 각각 remazol brilliant blue R 및 Acid red 264를 함유한 액체배지에서 배양한 결과, 배양 2∼8일째에 거의 색도가 제거되었고 리그닌 분해효소인 laccase의 활성이 다량 존재하였다. 선별된 균주의 색도 제거능력과 laccase, LiP, MnP의 활성은 상관관계가 있는 것으로 나타났으며, 염료의 색도 제거는 리그닌 PAH 및 PCP의 분해에도 좋은 활성을 가지며 난분해 물질의 분해에도 리그닌 분해효소의 활성이 상관관계가 있음을 확인하였다. 따라서, 선별된 균주가 향후 염색폐수의 색도 제거, 난분해 물질의 분해 또는 매립지 침출수의 처리등에 이용될 수 있을 것으로 기대된다. Several white-rot fungi collected from the mountains of Korea were evaluated for their ability to decolorize azo, polymeric, and reactive dyes. Strains CJ-105, CJ-212 and CJ-315, identified as Trametes sp., Pleurotus sp. and Formes sp., respectively, showed higher potential for decolorization of those dyes in either solid or liquid media. For Trametes sp. CJ-105, 100 ppm of Remazol Brilliant Blue R and 500 ppm of Acid Red 264 were completely decolorized after 2 days under liquid culture. The dominating ligninolytic enzyme existing in the culture broth was laccase (E.C. 1.10.3.2). Also, Pleurotus sp. CJ-212 and Fomes sp. CJ-315 showed similar patterns in decolorization of Remazol Brilliant Blue R and Acid Red 264. The extent of decolorization of the dyes in liquid culture was found to be proportional to the activities of the ligninolytic enzymes produced by each strain. In addition to that Trametes sp. CJ-105 was highly effective in degradation of polycyclic aromatic hydrocarbons and pentachlorophenol by the activity of the ligninolytic enzymes produced. In this study, we found that white-rot fungi, Trametes sp. CJ-105(KFCC 10941), Pleurotus sp. CJ-212(KFCC 10943) and Fomes sp. CJ-315(KFCC 10942), were effective in decolorizing a wide range of structurally different synthetic dyes, as well as some chemical compounds which are known to be hardly degradable.

Sequence Validation for the Identification of the White-Rot Fungi Bjerkandera in Public Sequence Databases

( Paul Eunil Jung ),( Jonathan J Fong ),( Myung Soo Park ),( Seung Yoon Oh ),( Chang Mu Kim ),( Young Woon Lim ) 한국미생물 · 생명공학회 2014 Journal of microbiology and biotechnology Vol.24 No.10

White-rot fungi of the genus Bjerkandera are cosmopolitan and have shown potential for industrial application and bioremediation. When distinguishing morphological characters are no longer present (e.g., cultures or dried specimen fragments), characterizing true sequences of Bjerkandera is crucial for accurate identification and application of the species. To build a framework for molecular identification of Bjerkandera, we carefully identified specimens of B. adusta and B. fumosa from Korea based on morphological characters, followed by sequencing the internal transcribed spacer region and 28S nuclear ribosomal large subunit. The phylogenetic analysis of Korean Bjerkandera specimens showed clear genetic differentiation between the two species. Using this phylogeny as a framework, we examined the identification accuracy of sequences available in GenBank. Analyses revealed that many Bjerkandera sequences in the database are either misidentified or unidentified. This study provides robust reference sequences for sequence-based identification of Bjerkandera, and further demonstrates the presence and dangers of incorrect sequences in GenBank.

Discovery and characterization of new O-methyltransferase from the genome of the lignin-degrading fungus Phanerochaete chrysosporium for enhanced lignin degradation

Thanh Mai Pham, L.,Kim, Y.H. IPC Science and Technology Press ; Elsevier Scienc 2016 Enzyme and microbial technology Vol.82 No.-

<P>Using bioinformatic homology search tools, this study utilized sequence phylogeny, gene organization and conserved motifs to identify members of the family of O-methyltransferases from lignin-degrading fungus Phanerochaete chrysosporium. The heterologous expression and characterization of O-methyltransferases from P. chrysosporium were studied. The expressed protein utilized S-(5'-adenosyl)-L-methionine p-toluenesulfonate salt (SAM) and methylated various free-hydroxyl phenolic compounds at both meta and para site. In the same motif, O-methyltransferases were also identified in other white-rot fungi including Bjerkandera adusta, Ceriporiopsis (Gelatoporia) subvermispora B, and Trametes versicolor. As free-hydroxyl phenolic compounds have been known as inhibitors for lignin peroxidase, the presence of O-methyltransferases in white-rot fungi suggested their biological functions in accelerating lignin degradation in white-rot basidiomycetes by converting those inhibitory groups into non-toxic methylated phenolic ones. (C) 2015 Elsevier Inc. All rights reserved.</P>

백색부후균 전처리에 의한 목재 칩의 Biopulping

강규영,김형진,양봉숙,조병묵,오정수 동국대학교 생명자원과학대학 연습림 2000 연습림논문집 Vol.- No.6

Pulping process is to mainly obtain lignocellulosic fibers for papermaking from wood resources. Three types of pulping method have been basically employed, such as chemical pulping, mechanical pulping, and their combination methods. Biopulping technique has been mainly applied in mechanical pulping by pretreatment of white-rot fungi into the ultrastructure of wood cell wall. The main purpose of biopulping is to improve the pulp qualities, paper properties, and to reduce the energy costs and environmental impact, compared to traditional pulping systems. Nowadays, biopulping is frequently tried in chemical pulping operation for environmental concept, fiber modification, improvement of physical properties of paper and economic savings. The pretreatment of white-rot fungi prior to chemical pulping could affect the swelling and softening of wood cell walls by the behaviors of modification and depolymerization of ligin compounds. This study was carried out to investigate the effectiveness of biological treatment to wood chips by white-rot fungus and its structural change of lignocellulosic fiber via kraft pulping. A rotary bioreactor was applied for pretreatment of biological action. The treatment of white-rot fungus was shown in weight loss of chips. After bio-kraft pulping, kappa number and total yield of pulps were measured, and reduced. Freeness(CSF) values were also decreased. Whereas brightness values were increased, compared to untreated control. The physical strength of handsheets was shown a slight increase in tensile, tear, burst, and folding endurance, with bio-treatments.

The Change of Ultrasonic Transmission Velocity by Wood Decay

Won Joung Hwang,Hyun Mi Lee,Young Ran Park,Dong Heub Lee 한국목재공학회 2014 목재공학 Vol.42 No.2

The deterioration in wood by the brown-rot fungus (Fomitopsispalustris) and the white-rot fungus (Trametesversicolor) were measured using ultrasonic velocity. Those were used for the decay exposure and 4 wood species of wood as the test specimens, Pinusdensiflora, Larixkaempferi, Pinuskoraiensis and Pinusrigida, were chosen with both the brown- and white-rot culture petridish during 12 weeks. After 12 weeks, the decrease rate of ultrasonic velocity was measured at 10∼15%. In both brown-and white-rot exposure experiments, P. rigida showed significant decrease in ultrasonic velocity (20%), L. kaempferi on the other hand did not show decrease in ultrasonic velocity. After the fungal exposure experi-ment, the inside of specimens was investigated by computer tomography (C/T). After C/T investigation, bending tests were performed.

Biodegradation of aromatic hydrocarbons by several white-rot fungi

Song, Hong-Gyu The Microbiological Society of Korea 1997 The journal of microbiology Vol.35 No.1

To investigate the biodegrading capability of several white-rot fungi isolated in Korea, biodegradation of BTX (benzene, toluene, xylene), phenanthrene and pyrene were tested in fungal cultures. Phanerochaete chrysosporium removed 20-30% of BTX mixture during 21 days of incubation in serum bottle. Coriolus versicolor KR-11W and Irpex lacteus mineralized 10.02 and 8.26% of totla phenanthrene, respectively, which were higher than in other studies with P. chrysosporium. These two strains also showed high mineralization rates (9.2-10.1%) for 4-ring pyrene. I. lacteus metabolized most of the added pyrene and 23.29% was incorporate dinto fungal biomass. Almost 50/5 of the pyrene was converted to polar metabolites and recovered from aqueous phase of culture. These results indicated that some white- rot fungi have higher biodegradability than P. chrysosporium and could be used in bioremediation of aromatic hydrocarbon contaminants in soil.