• Title/Summary/Keyword: brine

Search Result 441, Processing Time 0.023 seconds

Screening of Biological Activity of Crude Drugs Using Brine Shrimp Bioassay (Brine Shrimp Bioassay를 이용한 수종생약의 생리 활성 검색)

  • Lee, Ji-Sook;Kim, Jin-Woong
    • Korean Journal of Pharmacognosy
    • /
    • v.21 no.1
    • /
    • pp.100-102
    • /
    • 1990
  • Brine shrimp bioassay has been frequently utilized as a basic screening method for detecting a broad range of bioactive compounds from natural products. Each methanol, chloroform, and water extract of thirty-eight crude drugs were screened in the brine shrimp bioassay, and a number of crude drugs exhibited toxicity against brine shrimp nauplii.

  • PDF

Evaluation of Brine Recycling on Salting of Chinese Cabbage for Kimchi Preparation (김치용 배추 절임 염수의 재사용 가능성 평가)

  • 신동화;홍재식;오진아;안용선
    • Journal of Food Hygiene and Safety
    • /
    • v.15 no.1
    • /
    • pp.25-29
    • /
    • 2000
  • General composition and microbial load of brine recycled to 6 times for Chinese cabbage salting and the quality of Kimchi using every brined cabbage were investigated. The concentration of salt(NaCl) in brine after soaking dropped 1.35-2.49% and pH of the brine changed significantly until 4 times recycling. The acidities were increased as number of recycling increased. The total viable cell count in recycled brine increased from 1.58$\times$10$^{6}$ /mL in the first soaking brine to 2.3$\times$10$^{9}$ /mL in 4th soaking brine which was highest in number. The pure soluble solid and vitamin C content in brine were accumulated to 0.93% and 0.55 mg% respectively after 6th recycling. The pH, acidity and sensory evaluation results of Kimchi prepared by Chinese cabbage salted by each brine recycled 6 times showed no significant difference. It means there is a possiblity reusing brine for salting of cabbage for the preparation of Kimchi to 6 times.

  • PDF

Effects of Dill Pickling Process, $H_2O_2$ and Storage Duration on Lipoxygenase, Peroxidase and Catalase Activities in Cucumber and Brine (Pickle 제조과정, $H_2O_2$, 저장기간에 따른 refrigerated dill pickle과 brine중의 lipoxygenase, peroxidase, catalase 활성의 변화)

  • Jang, Mi-Jin;Cho, Il-Young;Lee, Si-Kyung
    • Applied Biological Chemistry
    • /
    • v.39 no.3
    • /
    • pp.222-226
    • /
    • 1996
  • Lipoxygenase, peroxidase and catalase activities were determined in tissues and brines of refrigerated dill pickling cucumbers in response to pickling process, storage and $H_2O_2$. Lipoxygenase was almost inactivated within 1 day exposure to dill pickling brine, and then gradually declined during storage. In contrast, peroxidase activity in cucumber tissue decreased steadily for 4 days after exposure to dill pickling brine. Catalase was present in fresh cucumber tissues, but only slight activity was observed after submerging cucumbers in pickling brine. Lipoxygenase, peroxidase and catalase activities were rapidly inactivated in cucumbers exposed to brine containing $H_2O_2$.

  • PDF

Changes of Brine Characteristics during the Salting Process of Winter, Spring, and Summer Chinese Cabbage (계절별 배추 절임염수의 특성변화)

  • 윤혜현;김동만
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.29 no.1
    • /
    • pp.26-29
    • /
    • 2000
  • Major characteristics of brines produced from the salting process were compared among winter, spring, and summer (highland) Chinese cabbages. The soluble-solids contents of final brine were decreased to 87~90% of initial brine during salting process, and showed 16.3, 15.8, and 14.4$^{\circ}$Brix for winter, spring, and highland Chinese cabbages, respectively. The pHs showed similar changes during salting process from pH 8.40~8.63 for initial to pH 6.03~6.24 for final. The high salting(12.4~14%) of final brine needs dilution or reuse treatemnt before discard. The COD of final brine were increased to 39.6 ppm, 52.1 ppm, 37.7 ppm, respectively. During salting total microbial counts of final brine were increased ten times from those of the initial brines for all samples.

  • PDF

Studies on the Brine Shrimp Toxicity of Crude Drugs (I) (수종생약의 Brine Shrimp 독성에 관한 연구(I))

  • Kim, Youn-Chul;Kim, Jeung-Hee
    • Korean Journal of Pharmacognosy
    • /
    • v.24 no.3
    • /
    • pp.263-265
    • /
    • 1993
  • Brine shrimp toxicity of water extracts of twenty three crude drugs was tested by the brine shrimp bioassay. Eight crude drugs were shown to have 100% mortality in $1000{\;}{\mu}g/ml$. They were fractionated by Amberlite XAD-2 column chromatography and were tested by the brine shrimp bioassay. Methanol fraction of Rhei Rhizoma $(LC_{50}=49.60{\;}{\mu}g/ml)$ and Cantharis $(LC_{50}=54.08{\;}{\mu}g/ml)$ were shown to have potent brine shrimp toxicity in this test.

  • PDF

Effects of Water or Brine Immersion Thawing Combined with Ultrasound on Quality Attributes of Frozen Pork Loin

  • Hong, Geun-Pyo;Chun, Ji-Yeon;Jo, Yeon-Ji;Choi, Mi-Jung
    • Food Science of Animal Resources
    • /
    • v.34 no.1
    • /
    • pp.115-121
    • /
    • 2014
  • This study explored the effects of water or brine (2% NaCl, w/v) immersion thawing combined with ultrasound treatment (40 kHz, 150 W) on the quality characteristics of pork. Ultrasound treatment of pork was conducted in two cold media (at $4^{\circ}C$), water and 2% (w/v) brine, respectively. Because the ultrasound treatment caused temperature increase in the media from $4^{\circ}C$ to $16^{\circ}C$, the qualities of pork thawed by ultrasound were compared with those thawed by immersion either in water or brine where the temperature was being maintained at either $4^{\circ}C$ (low temperature control) or $17^{\circ}C$ (high temperature control). The ultrasound treatment resulted in rapid thawing of pork where the thawing rate was similar to those thawed in the $17^{\circ}C$ media. For quality characteristics, ultrasound-treated pork in brine had an advantage of less cooking losses when comparing to the control. In particular, ultrasound treatment in brine exhibited the lowest shear force (or highest tenderness) among the freezing/thawing treatments. Although the ultrasound processing in brine caused discoloration of the pork, this thawing technique had potential to be applied as a commercial thawing technology for frozen foods.

Waste Isolation Pilot Plant Performance Assessment: Radionuclide Release Sensitivity to Diminished Brine and Gas Flows to/from Transuranic Waste Disposal Areas

  • Day, Brad A.;Camphouse, R.C.;Zeitler, Todd R.
    • Nuclear Engineering and Technology
    • /
    • v.49 no.2
    • /
    • pp.450-457
    • /
    • 2017
  • Waste Isolation Pilot Plant repository releases are evaluated through the application of modified parameters to simulate accelerated creep closure, include capillary pressure effects on relative permeability, and increase brine and gas saturation in the operations and experimental (OPS/EXP) areas. The modifications to the repository model result in increased pressures and decreased brine saturations in waste areas and increased pressures and brine saturations in the OPS/EXP areas. Brine flows up the borehole during a hypothetical drilling intrusion are nearly identical and brine flows up the shaft are decreased. The modified parameters essentially halt the flow of gas from the southern waste areas to the northern nonwaste areas, except as transported through the marker beds and anhydrite layers. The combination of slightly increased waste region pressures and very slightly decreased brine saturations result in a modest increase in spallings and no significant effect on direct brine releases, with total releases from the Culebra and cutting and caving releases unaffected. Overall, the effects on total high-probability mean releases from the repository are insignificant, with total low-probability mean releases minimally increased. It is concluded that the modified OPS/EXP area parameters have an insignificant effect on the prediction of total releases.

A Study on the Behavior of Brine Lumps Caused by Dropping Brine (염수투하에 따른 염수괴 거동에 관한 연구)

  • ;K. Nakatsuji
    • Journal of Korean Society of Coastal and Ocean Engineers
    • /
    • v.3 no.1
    • /
    • pp.21-28
    • /
    • 1991
  • this paper, two-dimensional behaviors of the brine lumps moving along the inclined boundaries are investigated experimentally and theoretically. It was investigated these factors in the brine lumps which are behaviors. shape. length change. height change. and moving velocity change. The results were compared the above factors with thermal theory. The shape of the brine lumps is well apporximated by a half-ellipse. The shape of the brine lumps was similar with the slope thermal and the moving characteristics were found to reappear with the turbulent thermal theory.

  • PDF

Study on the dyestuff for acceration solar evaporation (함수의 천일증발촉진성 색소에 관한 시험)

  • 장판섭
    • YAKHAK HOEJI
    • /
    • v.3 no.1
    • /
    • pp.26-34
    • /
    • 1957
  • The solar evaporation method is one of the most important and popular salt manufecturing method in Korea. The rate of evaporation of sea water depends on a complex climate factors. Of these factors, the most important is solar radiation and in particular the extent to which it is absorbed in the brine. By the addition of suitable dyestuff, a further increase in absorption is obtained and can result in all the radiation entering the brine being made available as heat. "Solivap Green", one of several dyestuffs which have been suggested for accelerating solar evaporation, was tested in this experiment. The results of the experiment. 1. Increase the evaporation rate of brine up to 20-25%. 2. Elevate the temperature of brine 2-$4^{\circ}C$. higher than that of brine adding no dyestuff. 3. Optimum dyestuff concentration is 25-30 mg/L and allowable maximum concentration can not exceeded 1000 mg/$m^2$ (50 mg/L). 4. Addition of dyestuff does not cause the degradation of salt produced. 5. A conversion table which indicates the concentrations for various depths of brine was prepared for engineering purpose. 6. Absorption spectrum of the dyestuff was studies, but toxicological and structural studies for the dyestuff have not been done in this experiment.

  • PDF

The Optimum Temperature of Brine Heating System for LNG Storage Tank (LNG 저장탱크용 Brine Heating System의 최적온도 설정)

  • Oh, B.T.;Hong, S.H.;Yang, Y.M.
    • Proceedings of the KSME Conference
    • /
    • 2001.11a
    • /
    • pp.361-366
    • /
    • 2001
  • The purpose of installation of the brine heating system for LNG storage tank is the prevention of ground freezing. If the ground of LNG tank areas is frozen, it is caused by safety problems. The design of brine heating system for LNG storage tank which is constructing in our country is not well considered about domestic weather conditions and economical efficiency. Therefore, this paper reports on the study of the optimized temperature of inside pipes and cooling process through the transient analysis by using the existing brine heating system.

  • PDF