• 제목/요약/키워드: dregs

검색결과 35건 처리시간 0.03초

축산환경 개선을 위한 암모니아 제거 미생물의 탐색 및 분리 (Screening and Isolation of Ammonia Removal Microorganism for the Improvement of Livestock Environment)

  • 이소진;이은영
    • 한국미생물·생명공학회지
    • /
    • 제37권4호
    • /
    • pp.408-412
    • /
    • 2009
  • A study on the screening and isolation of microorganism was performed for the removal of main malodor, such as ammonia, produced from the livestock farm. The main malodor components in livestock farm are ammonia, volatile fatty acids, sulfur compounds and trimethylamine. Damages to man and livestock were originated from malodors mainly due to ammonia, and thus ammonia reduction experiments were performed. Sludge of sewage treatment plant was inoculated in the sesame dregs culture, from which ammonia gas was produced. An aerobically grown, pure cultured isolated from the 10th enrichment culture was analyzed by 16S rRNA sequencing and identified as Alcaligenes sp. NS-1. This strain NS-1 precultured in the sesame dregs was found to remove ammonia gas with an efficiency of approximately 99-100% at an average concentration of 40 ppmv of ammonia gas. When the strain NS-1 sprayed to pig excrements, the removal efficiency at an average concentration of 100 ppmv of ammonia was approximately 60% after 16 hr.

백령버섯 병재배 배지조성이 발이와 생육에 미치는 영향 (Effects of substrate composition on the primordia and growth of fruiting body in Pleurotus nebrodensis during bottle cultivation.)

  • 정윤경;김정한;백일선;이용선;강영주;지정현
    • 한국버섯학회지
    • /
    • 제16권1호
    • /
    • pp.1-8
    • /
    • 2018
  • 백령버섯 병재배용 배지 주재료는 콘코브 배지보다는 미루나무톱밥 배지 처리구에서 발이 및 생육특성이 가장 양호하였으며, 배지 영양원으로는 면실피, 면실박, 밀기울, 옥수수분, 미강 등이 적합하였고, 배지 혼합 비율은 58% 이내 범위에서 재료별로 질소함량을 고려하여 가감 사용하는 것이 적당하였으며, T-N 함량이 높은 면실박 사용량은 20% 수준으로 조절할 필요가 있었다. 또한, 배지 첨가제는 탄산칼슘 처리가 소석회 처리보다 양호하였으며, 무처리구의 경우 갓과 대의 탄력성은 감소하고 경도는 증가되는 경향을 보였다. 따라서, 백령버섯 병재배용 최적배지는 미루나무톱밥+면실피+면실박+밀기울+옥수수분+탄산칼슘이 40:20:20:15:3:2의 혼합 비율로 조성되는 처리구였다.

길항세균 Bacillus subtilis YBL-7 건조포자체의 종자피막화에 의한 생물학적 방제 (Seed Coating for the Application of Biocontrol Agent Bacillus subtilis YBL-7 against Phytopathogens)

  • 장종원;김상달
    • 한국미생물·생명공학회지
    • /
    • 제23권2호
    • /
    • pp.243-248
    • /
    • 1995
  • Agrochemicals for the plant-disease control are criticized severely for causing environmental pollution and residual problems, and consequently microbial disease control agents are expected to be safer and more economical for sustainable agriculture. Treatment of biological control agents to seed requires the use of effective delivery systems that allow full expression of the benefical qualities of the bioprotectant. For the activation and establishment of bioprotectant around the plant seed which are able protect the seeds and seedlings from pathogen attack, the optimal liquid coating formulation was obtained using 2% sodium carboxymethyl cellulose (binder), 20% sesame dregs (solid particulate material), and dried spore of Bacillus subtilis YBL-7 (bioprotectants, 10 mg/g of seed). Suppressive of root rot was demonstrated in pot trials with coated kidney bean (Phaseolus vulgaris L.) seeds. Coated seeds with B. subtilis YBL-7 spore in F. solani-infested soil reduced disease incidence by 85% to 90% after 30 days.

  • PDF

콩잎에 대한 문헌적 고찰 (A Bibliographical Analysis on Bean sprouts)

  • 이선아;박상영;안상우
    • 한국의사학회지
    • /
    • 제21권1호
    • /
    • pp.109-115
    • /
    • 2008
  • Bean sprouts have been one of the vital food for our ancestor for a long time. They were also hardy wild plants or first-aid medicine for needy people. Even nowadays they are served at table. For examples, bean curd, bean-curd dregs, bean sprouts, soybean paste, fermented soybeans, hot pepper paste, and soy are our daily food. Moreover bean sprouts are widely favored at the age of the well-being. Bean sprouts for a recover from a hangover, soybean paste for the prevention of cancer, beans leaf as the best well-being food for a diet, and so on. Thus the paper explains the origin of bean sprouts and their application as a food or medicinal stuff with the analysis of the various and wide-spread records.

  • PDF

치면세균막 분해효소인 $\alpha$-1,3 glucanase를 생산하는 미생물의 분리 및 효소 특성 (Isolation of $\alpha$-1,3 Glucanase from Microorganism and the Prodution of High Activity $\alpha$-1,3 Glucanase for Hydrolysis of Dental Plaque)

  • 조효상;허태련;윤정원
    • 한국미생물·생명공학회지
    • /
    • 제21권3호
    • /
    • pp.263-268
    • /
    • 1993
  • Seventeen strains were isolated from soil, cattle rumen, cereal sewage dregs, insect on agar plate containing insoluble glucan as a sole carbon source from immobilized Streptococcus mutans, which produced alpha-1,3 glucanase for lysis of dental plaque. Among these strains isolated from soil, SW-522 and SW-713 that had appeared to produce the high level of alpha-1,3 glucanase, degraded insoluble glucan from S. mutans 97.6% and 49.4%, respectively in 5 hours. The activity of crude alpha-1,3 glucanase from SW-522 was 1.3mg insoluble glucan/min.mg protein. This enzyme was entirely degraded insoluble glucan on glass tube which produced by S. mutans in TH medium with 5% sucrose.

  • PDF

Apple wine 및 apple brandy 제조공정에 있어서의 methanol 함량의 추이에 관한 연구 (Studies on the changes of methanol content in manufacturing process of apple wine and it's brandy)

  • 이성범
    • 미생물학회지
    • /
    • 제5권2호
    • /
    • pp.55-60
    • /
    • 1967
  • Studies on the changes of methanol content in the manufacturing process of apple wine and apple brandy. The results from the studies of transition and changes of methanol content in the fermentation of wine and brandy from Korean apple, Kugkwang and Iwai are as follows. 1) Pectin, the source of methanol, can be extracted as dregs more than 85% of its in the process of pressing to get juice. 2) In the process of fermenting wine, the occurence of methanol depends on the condition of the apple itself (i.e. species, freshness, change in quality, or corruption). It seems that the insoluble pectin in the fresh apples changes into the soluble pectin as time goes by. 3) The heating treatment of fresh apples produced more methanol compared with nonheating treatment. 4) The content of methanol in apple brandy can influence free methanol content in mash pulp.

  • PDF

큰느타리버섯 배지재료의 다변화를 위한 연구 (Studies for alternative material of media for Pleurotus eryngii)

  • 박진영;이재윤;김현태;김삼수;김성윤;김문옥;이재동
    • 한국버섯학회지
    • /
    • 제4권3호
    • /
    • pp.88-100
    • /
    • 2006
  • 큰느타리버섯의 병재배 시에 생산 단가의 절감과 배지 다양화의 측면에서 대용할 수 있는 재료를 탐색하고 균사 생장률을 높일 수 있는 배지 조성을 찾기 위하여 본 실험에서는 주재료(톱밥 수종), 첨가재료, 무기염류, 활성물질을 대체 첨가하여 큰느타리버섯의 균사 생장률을 비교하였다. 기본배지의 건비지를 대신하여서 감자전분, 야자박, 단백피 탈지대두분, 면실피, 계분을 비율을 조정하여 사용할 수 있음을 확인하였고 특히, 탈지대두분 2~8% 첨가와 계분의 2% 첨가는 기본배지보다 균사생장에 효과적임을 확인하였다. 또한 기본배지의 미송톱밥에 대해 활엽수 톱밥을 대용할 수 있는 것으로 확인하였고 25.2%로 혼합할 때 가장 효과적이었다. 무기염류 실험에서는 $CaCO_3$, 2~3%, $K_2CO_3$, 0.2%, $MgSO_4{\cdot}7H_2O$ 0.1%, $MnSO_4{\cdot}5H_2O$ 0.05%의 농도로 첨가하였을 때 균사생장에 효과적이었다. 활성 물질들은 그 비용에 대한 충분한 효과를 볼 수 없었다.

  • PDF

방울솜을 이용한 양송이 퇴비배지 제조법 개발 (Development for manufacture of Agaricus bisporus compost by cotton wastes media)

  • 장현유;최형기
    • 한국버섯학회지
    • /
    • 제2권1호
    • /
    • pp.28-32
    • /
    • 2004
  • 양송이의 관행적 재배방법인 볏짚배지를 방울솜으로 대체하여 고품질 다수확을 하는 몇가지 배지 배합비율에 관한 연구의 결과는 다음과 같다. 1. 하절기에 방울솜을 4,000, 4,500kg, 동절기에는 5,000, 5,500kg을 주재료로 처리하고 첨가재료는 주재료에 대한 비율로 왕겨 4.5%, 계분 50%, 석회 1.5%, 요소 2%, 담배가루 2.5%, 깻묵 5%, 석고 5%를 혼합한 결과, 하절기에는 64.33kg, 동절기에는 65.21kg으로 대조구에 비해 57.2%가 증수되었다. 2. 면실피 1.25%, 왕겨 4.5%, 계분 50%, 석회 1.5%, 요소 2%, 담배가루 2.5%, 깻묵 5%, 석고 5%를 혼합한 결과, 하절기에는 61.0kg, 동절기에는 62.3kg으로 대조구에 비해 49.6%가 증수되었다. 3. 면실피를 1.25% 혼합한 시험구와 왕겨 대신 볏짚(세단) 2.5%와 면실피 1.25% 혼합여 처리한 결과, 하절기에는 59.0kg, 동절기에는 61.3kg으로 대조구에 비해 49.6%가 증수되었다. 4. 하절기에 방울솜과 면실피를 각각 2000kg, 동절기에 방울솜과 면실피를 각각 2500kg으로 처리하고 첨가재료는 주재료에 대한 비율로 왕겨 2.5%, 계분 37.5%, 석회 1.5%, 요소 2%, 담배가루 1.25%, 깻묵 2.5%, 석고 3%를 혼합한 결과, 하절기에는 57.33kg, 동절기에는 58.34kg으로 대조구에 비해 40.4%가 증수되었다.

  • PDF

수직 패들형 및 하이드로 포일형 응집기 특성의 전산유체역학 해석 (CFD ANALYSIS ON THE CHARACTERISTICS FOR FLOCCULATORS OF VERTICAL PADDLE AND HYDRO-FOIL TYPE)

  • 신종현;장세명;조용
    • 한국전산유체공학회지
    • /
    • 제21권3호
    • /
    • pp.24-30
    • /
    • 2016
  • In the water purification plant, the mixture of water and chemical from the mixing basin enters the flocculation basin. The rotating flocculators are generally used for the efficient flocculation of dregs. In this paper, the performance of flocculators of a vertical paddle type, widely used in the typical flocculation basins, and a hydro-foil type, recently disseminated in the field, are compared with each other by use of the numerical method. Also the characteristics and the efficiency are analyzed with CFD techniques. The strain rate and the eddy viscosity are compared for two types to predict the mixing efficiency, and the maximum speed and its location are pursued from the computed data. The hydrofoil type shows that the eddy viscosity is enhanced 1.66 to 3.03 times larger than that of vertical paddle type, and also produced 1.87 to 1.95 times larger flocs for each stage. However, the rapid rotation of hydrofoil may chop the floc to small size due to the higher turbulence intensity. From the result of computation, the strong and weak points of each type have been analyzed for the decision making.

꿈에 대한 동서의학적 인식 (Study on Recognition of Dream in Oriental and Western Medicine)

  • 강동윤;김병수;강정수
    • 동의생리병리학회지
    • /
    • 제19권4호
    • /
    • pp.878-883
    • /
    • 2005
  • The dream is a well-known experience in the routine life. It is the image and thought being occurred during the sleep, and the complex reaction of our mental world to the event of everyday. In particular, there are so many opinions of the reason why people have a dream and this thesis is telling about the physical and pathological changes in the human as one of that various opinions. The aspects of this thesis are often founded in the diverse texts of oriental Medicine, including the Internal Classics(내경), and there were some cases that regarded the dream as diagnostic object and put to clinical uses. These attempts were not only tried out by particular orient thoght, also the ancient Greeks thought that the dream would represent important informations about the health. But, these ideas have been treated lightly by the impacts of the western medicine since the modern age. Straightforwardly, before the psycho-analytics was not development, most of the doctors and scientists regarded the dream as things like dregs of mind. The central operating bodies of the dream are the Spirit(신) and Hon and Beak(혼백), and the Spirit(신) is more essential part between the two.