http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Minlee Lee (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
-
김수인 ( Su-in Kim ),이승민 ( Seung-minlee ),이충렬 ( Chung-yeol Lee ),손홍주 ( Hong-joo Son ),황대연 ( Dae-youn Hwang ),이희섭 ( Hee-sup Lee ),김동섭 ( Dong-seob Kim ) 한국산업식품공학회 2016 산업 식품공학 Vol.20 No.4
호흡기 질환 개선에 도움을 주는 천문동의 젖산균 발효 및 호흡기 병원성 미생물에 대한 항균활성 특성을 확인하고자 연구를 진행하였다. 발효 전 천문동과 젖산균 발효천문동의 항균활성은 추출물 별로 차이가 나타났고 EtOAc추출물에서 항균활성은 더욱 개선된 것을 확인할 수 있었다. EtOAc 추출물에서 MIC는 생육 저해환이 발효 전 천문동의 MIC가 E. coli는 100 ㎎/mL, S. epidermidis는 75 ㎎/mL, S. aureus에서는 100 ㎎/mL의 농도였던 것이 ACLM은 E. coli에서 25 ㎎/mL, ACLS는 S.epidermidis에서 12.5㎎/mL, ACLP는 S.aureus에서 12.5 ㎎/mL로 나타났다. 이러한 결과로부터 젖산균 발효를 통하여 천문동의 항균활성이 크게 증가하고 호흡기 질환에 효과가 있을 것이라 기대할 수 있다. ACLM와 ACLS의 경우 생균수, pH, 산도가 비슷한 경향을 나타낸 반면 ACLP은 120시간 발효 시에도 생균의 수는 감소가 크지 않고 거의 일정하게 유지되고 pH, 산도는 각각 48시간까지 일정하게 감소 또는 증가하다 일정해지는 형태를 나타내었다. 일반성분 중 수분과 회분은 천문동 발효 전·후에서 큰 차이가 없었다. 총당과 환원당은 발효 전 천문동에 비하여 발효 후 그 값이 크게 감소하여 미생물의 발효에 당이 사용되었음을 추측할 수 있었다. Asparagus cochinchinensis is known to ameliorate respiratory disease. We evaluated the antimicrobial activity of non-fermented and fermented A. cochinchinensis using lactic acid bacteria and investigated the physicochemical characteristics of the fermented A.cochinchinensis. Non-fermented A.cochinchinensis showed lower levels of antimi-crobial activity than the fermented A.cochinchinensis. Ethyl acetate (EtOAc) extracts of the fermented A. cochinchin-ensis showed antimicrobial activities against the indicator strains at lower minimum inhibitory concentration (MIC). The MIC of the EtOAc extract of non-fermented A. cochinchinensis against Escherichia coli, Staphylococcus epi-dermidis, and Stphylococcus aureus were 100, 75, and 100 ㎎/ml. In contrast, the MIC of the EtOAc extract of ACLM was 25 ㎎/mL against E. coli. The MIC of the EtOAc extract of ACLS was 12.5 ㎎/mL against S.epi-dermidis, and the MIC of the EtOAc extract ofACLP was 12.5 ㎎/mL against S.aureus. The viable cell number, pH, and acidity of A. cochinchinensis fermented by Lactobacillussakei 383 were similar to those of A. cochinchin-ensis fermented by Leuconostocmesenteroides 4395, but were different from those of A. cochinchinensis fermented by Lactobacillus.plantarum KCCM 11322. These results suggested that the fermented A. cochinchinensis by lactic acid bacteria may be a good candidate for application to ameliorate respiratory disease.
-
Jie Deng,Jianjun Zhao,Xiao Zhao,Jianle Yu,Chun Lei,Minlee Lee,Runqiu Huang 대한토목학회 2022 KSCE JOURNAL OF CIVIL ENGINEERING Vol.26 No.4
It is important to account for the poor ecological environment of weak seasonal permafrost regions while developing a suitable ground improvement technique. As an organic non-polluting material, glutinous rice slurry improves the unconfined compressive strength of the soil through induction and synergy with lime. The Qinghai-Tibet Plateau has cold weather, large temperature differences between day and night, and a fragile ecological environment. Once damaged, it is extremely difficult to recover. This study investigates the effects of glutinous rice slurry on the unconfined compressive strength (UCS), failure mode, and microstructure of lime-treated seasonally frozen soil subjected to freeze–thaw cycles. Organic glutinous rice slurry with concentrations of 0, 2, 4, 6, and 8% was added to soil specimens that were treated with 10% lime and subjected to 0, 1, 3, 6, and 10 freeze–thaw cycles. In tests, the addition of glutinous rice pulp could increase the UCS of the soil by up to 40%. The first freeze-thaw cycle has the greatest impact on the UCS of the soil sample, with a decrease of 6 – 15%. Glutinous rice slurry can reduce the degradation effects of freeze-thaw cycles by increasing the contact area between soil particles. In a comprehensive evaluation under test conditions, a glutinous rice slurry concentration of 4% led to optimal results. It revealed the change characteristics of the microstructure under the action of freeze-thaw cycles, which has a good corresponding relationship with the macroscopic mechanical properties. The results can provide reference value for the application of glutinous rice slurry in the modification of subgrade soil in seasonal permafrost areas.
코리아스칼라연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
