http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Botrytis cinerea에 의한 오크라 잿빛곰팡이병
최장남,최인영,이귀재,이정노,조성완,신현동,Victor Galea 한국식물병리학회 2018 식물병연구 Vol.24 No.4
From 2014 to 2016, approximately 5% of okra fruit were observed displaying gray mold symptoms at the research field of Jeollabuk-do Agricultural Research and Extension Services, Korea. The symptoms observed were water-soaked, brown or gray spots, and abundant mycelial with conidia appearing on the infected fruit. Initial infection commenced from the base of fruit and gradually moved to the pod, where it finally resulted in collapse. Colonies on potato dextrose agar were gray to grayish brown, felted and cottony expanding 65-80 mm after one week. The fungus formed several black sclerotia ranging 1.0-3.5×0.5-3.0 mm on the Petri dish after two weeks. The conidia were one-celled, ellipsoidal or ovoid, colorless or pale brown, and 6.2-15.4×5.0- 10.4 mm. Conidiophores arose solitary or in groups, straight or flexuous, septate, with an inflated basal cell brown to light brown, and measured 85-450×10.0-40.0 mm. On the basis of the morphological characteristics and phylogenetic analyses of internal transcribed spacer rDNA, the fungus was identified as Botrytis cinerea Pers. Pathogenicity of a representative isolate was proved by artificial inoculation, fulfilling Koch’s postulates. To our knowledge, this is the first report on the occurrence of B. cinerea on okra in Korea.
최장남,이왕휴 한국자원식물학회 2018 한국자원식물학회지 Vol.31 No.6
In order to understand the characteristics of soil according to the cultivation environment of Chinese bellflower(Platycodon grandiflorum A.), soil chemical properties of 12 collected soil samples from 6 cultivated fields in Okcheon,Chungbuk province in August. 2017 were analyzed. The soil pH was distributed within the range of 4.61 to 5.25 at allcultivation years and E.C (Electric Conductivity) and T-N (Total Nitrogen) of the cultivation year were not significant. Available P2O5 was higher than the average for medicinal crops and P. grandiflorum in Korea and C.E.C (Cation ExchangeCapacity) was inconsistent for each cultivation year. In particularly, it was validated that the content of exchangeablecations K, Ca, Ma, and Na in this experiment was similar to that of C.E.C according to the cultivation years, because C.E.Chad a high correlation with the exchangeable cations. For the available P2O5, as affected by trans-planting, 5Y-NT-H(cultivated 5 years and non-transplanted) had 58 mg/kg, while 5Y-T-H (cultivated 5 years and transplanted) had 246 ㎎/㎏. The soil pH was found to be lower (acidic) in diseased soils than healthy soils. E.C was confirmed to be was higher indiseased soils than healthy soils except for the one cultivated for 2 years. The contents of T-N and available P2O5 werehigher in diseased soil except for the one cultivated for 5 years and 11 years. The exchangeable cation K and Na tended tobe higher in diseased soils rather than that in healthy soils, and the exchangeable cation Ca and Mg contents were higher inhealthy soils than in diseased soils. The C.E.C of the soil was lower than that of healthy soils in all of the years except for theone which was cultivated for 5 years (transplanted).
Hygienic effect of modified atmosphere film packaging on ginseng sprout for microbial safety
최장남,김소수,백지선,이미정,이지현,장자영,이데레사 한국식품저장유통학회 2024 한국식품저장유통학회지 Vol.31 No.1
This study evaluates the microbial safety of ginseng sprouts packaged in moss and a modified atmosphere (MA) film within Styrofoam boxes. Ginseng sprout samples were stored at 4℃ for seven days, and the total fungi and aerobic bacteria counts, relative humidity, and moisture content were measured at 0, 1, 3, 5, and 7 days. During the storage period, both packaging treatments caused an increase in the total fungi and aerobic bacteria counts. However, by the seventh day, the ginseng sprouts packaged in the MA film demonstrated significantly lower counts of total fungi (3.03 log CFU/g) and aerobic bacteria (7.32 log CFU/g) than those in moss (3.66 and 7.63 log CFU/g, respectively). Moss packaging alone resulted in the total fungi count reaching up to 3.36 log CFU/g, with the aerobic bacteria count consistently exceeding 7 log CFU/g, highlighting the importance of hygienic management. Moreover, no significant differences were observed in the moisture content and relative humidity between the MA-film- and moss-packaged groups throughout storage. These findings indicate that the functional MA film is a more hygienic packaging solution for ginseng sprouts than moss.
최장남,김소수,최정혜,백슬기,박진주,장자영,현정은,김세리,김점순,이데레사,Choi, Jang Nam,Kim, So soo,Choi, Jung-Hye,Baek, Seul Gi,Park, Jin Ju,Jang, Ja Yeong,Hyun, Jeong-Eun,Kim, Se-Ri,Kim, Jeom-Soon,Lee, Theresa 한국식품위생안전성학회 2021 한국식품위생안전성학회지 Vol.36 No.5
새싹삼의 곰팡이 발생을 조사하기 위해 18점의 유통중인 새싹삼을 수집하여 곰팡이 발생빈도를 분석하였다. 전체 시료의 총 곰팡이 발생빈도는 평균 113.3-174.1%였고 Penicillium spp.의 발생빈도가 가장 높았다. 곰팡이 발생빈도는 이끼가 잎, 줄기, 뿌리보다 유의하게 높았다. 잎과 줄기에서는 Penicillium spp.이, 뿌리에서는 Fusarium spp.의 발생이 높았으며 각각의 우점종은 P. olsonii와 F. oxysporum으로 동정되었다. 계통발생학적 분석을 통해 Fusarium spp.은 총 9개 종, Aspergillus spp.은 A. westerdijkiae와 A. favus, Penicillium spp.은 총 11개 종이 동정되었다. 곰팡이독소 생성 종으로 알려진 25균주의 독소형을 PCR로 검정한 결과 19점의 균주에서 각 독소형이 확인되었다. 이 중 A. flavus 2점과 A. westerdijkiae 11점이 aflatoxin과 ochratoxin A을 각각 생성하였고 일부 균주는 높은 독소생성능을 보였다. 이 결과는 새싹삼 생산에 있어 곰팡이 발생에 대한 지속적인 모니터링 및 관리방안이 필요함을 시사하였다. In order to investigate frequency of fungal contamination in ginseng sprout, we collected 18 types of retail ginseng sprouts and analyzed them. Overall frequency of fungal contamination ranged from 113.3 to 174.1% with the highest occurrence of Penicillium spp. Fungal detection rate was significantly higher in moss than in stem, leaf and root of ginseng sprout. Penicillium spp. occurred in leaf and stem with the highest incidence and Fusarium spp., in root. Among Penicillium spp. and Fusarium spp., P. olsonii and F. oxysporum were dominant, respectively. Nine Fusarium species, Aspergillus westerdijkiae, Aspergillus flavus, and 11 Penicillium species were identified by phylogenetic analysis. PCR screening of mycotoxigenic potential revealed that 19 out of 25 isolates tested were positive for respective mycotoxin biosynthetic gene. Two 2 A. flavus and 11 A. westerdijkiae isolates produced varying amount of aflatoxin or ochratoxin A in czapek yeast extract brothsome of which showed high levels of mycotoxin production. These results suggests a need for continuous monitoring and management program to control fungal contamination in the ginseng sprout production chain.
병풀의 생육 특성, Asiaticoside 함량 및 항산화 활성 비교
최장남(Jang Nam Choi),오명원(Myeong Won Oh),이희정(Hee Jung Lee),이정훈(Jeong Hoon Lee),정진태(Jin Tae Jeong),이윤지(Yun Ji Lee),장재기(Jae Ki Chang),박춘근(Chun Geon Park) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.1
Centella asiatica (L.) Urban is a medicinal plant containing madecassic acid, triterpenoids and asiaticoside, and has a wound healing effect. However, since it grows only in some regions of Korea, it is necessary to breed stable varieties. In this study, it were analyzed for the growth characteristics, asiaticoside, anxiodant components and 2,2-diphenyl-1picryl hydrazyl (DPPH) radical scavening activity of C. asiatica collected from domestic natural habitat (Hapcheon, Gyeongnam). In the growth characteristics of each resource, CA9 and CA10 were superior in characteristics of aerial part and in dry weight. In asiaticoside content analysis, CA5 and CA3 were high with 53.96 ㎎/g and 52.40 ㎎/g, respectively. CA12 showed the possibility of development because the resource showed high in total flavonoid (7.3 ㎎/g), total polyphenol (10.64 ㎎/g) and DPPH activity (11.96 ㎎ AAE/g) among other resources. However, it is necessary to select a resource suitable for each characteristic of C. asiatica and to study charateristics through additional resources collection since the excellent growth characteristics of the collected resources do not necessarily coincide with the content and antioxidant activities.
톱밥 배지를 이용한 버섯 병재배 시 발생하는 Trichoderma spp.의 특성
최장남 ( Choi Jang Nam ),서태진 ( Seungnoh Kim ),김승노 ( Taejin Suh ) 전북대학교 농업과학기술연구소 2020 농업생명과학연구 Vol.51 No.1
In order to analyze the mycological and molecular biological characteristics of Trichoderma spp. during mushroom bottle cultivation using sawdust, 48 isolates were collected from bottle cultivated mushroom farms in Gimje, Gunsan and Jinan, Jeollabuk-do. In this study, through the morphological characteristics and the results of sequencing of the rDNA ITS region of isolates. Trichoderma spp. occured in sawdust during mushroom bottle cultivation were mainly distributed with all 4 species (T. longibrachiatum, T. harzianum, T. pleuroticola, T. atroviride). The incidence of Trichoderma spp. was highest at the beginning of mushroom growth (average 21.%). All of the representative isolates formed green conidia spores after 3 days of cultivation, and each isolate formed a different cultural band pattern. In addition, the growth rate of Trichoderma spp. in this study was high at 25∼30℃. In addition, in the competition test between isolates and 2 mushroom (Pleurotus ostreatus and Flammulina velutipes), it was shown that the growth of mushroom were inhibited in the form of overgrowth or lysis by Trichoderma spp.
비구골 결손시에 지주골 및 파쇄골 이식을 이용한 고관절 전치환술
최장석,안기찬,남우동,서승석,김영창,류청창 인제대학교 1998 仁濟醫學 Vol.19 No.2
인공 고관절 치환술 시는 고관절의 회전 중심이 해부학적으로 회복되어야 하고, 비구컵이 비구부에 충분히 유치되어야 만족할 만한 결과를 얻을 수 있다. 비구 이형성이나 인공 고관절 재치환술 시 동반되는 비구부 결손은 고관절 회전 중심의 해부학적 회복과 비구골에 대한 유치를 어렵게 한다. 이에 비구부 결손에 대하여 자가골이나 동종골, 이종골 등의 골 이식을 시행하고 나서 방사선학적 및 임상적으로 분석한 바, 지주 이식골의 유치율이 45%를 넘지 않을 경우와 자가골 이식을 시행하였을 경우, 그 결과는 양호할 것으로 사료된다. The insufficient acetabular bone stock is a major problem in patients with dysplastic hip caused by septic hip sequelae, CDH sequale who required total hip replacement and with required revision total hip replacement. The restoration of the anatomical center of relation and adequate acetabular containment is important to obtain long-term sucess. Many alternative operations were introduced by several authors using small acetabular components, widening the ilium by inserting a graft between the inner and outer tables, or acetabular augmentation by bone graft from femoral head and neck. According to Harris(1986), Autogenous femoral head bone grafting is a useful technique with a good potential for long-term success when amount of coverage by graft is limited to less than 40% of the surface of the acetabular component. Authors analysed 41 patients 45 hips with acetabular deficiency treated with primary or revision total hip replacement using acetabular bone graft and cementless acetabular component at Inje University, Pusan Paik Hospital from Sep. 1983 to Jan. 1995. The 45 hips in 41 patients were available for review with a minimum follow-up of 24 months (mean 5.2 year, maximum 8.7 year). The results obtained were as follows. 1.Strut bone graft to acetabular segmental deficiency combined with cancellous bone graft to cavitary deficiency are useful procedure with a good potential for long term success when amount of strut bone graft is less than 45% of cup coverage. 2.Autogenous bone graft and metal-backed acetabular component with press-fitting are favorable for good result.