• Title/Summary/Keyword: Functional Water

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A Study of Mechanical characteristics of functional Autoclaved Lightweight Concrete (기능성 경량기포콘크리트의 물리적 특성에 관한 실험적 연구)

  • Kim, Soon-Ho;Kim, Hong-Yong
    • KIEAE Journal
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    • v.7 no.5
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    • pp.121-126
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    • 2007
  • This is the experimental study on the functional property of the light-weight concrete according to the mineral composite. According to the increase of the functional mineral, Autoclaved light-weight concrete (ALC) have a effect of high far infrared ray, deodorization, anion and change of chromaticity on D65 of light source. Compressive strength and change of specific gravity by foaming of Mixed Slurry in accordance with additive rates and Water. It chracterizes surface by SEM, chemical component and crystallization by XRD, XRF. the results of this experiment studied influences of ALC by functional minerals.

Effect of Functional Hanji Using Wood Ceramics on Indoor Humidity Control (우드세라믹을 첨가한 기능성 한지가 실내습도 조절에 미치는 영향)

  • Lim, Hyun-A;Oh, Seung-Won;Kang, Jin-Ha
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.38 no.2 s.115
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    • pp.35-42
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    • 2006
  • This study was carried out to develop a new application field of traditional Hanji and obtain the basic data for producing functional Hanji using sawdust ceramics and rice-husk ceramics as an architectural material. The results measuring water vapor permeance and water vapor absorption for using window materials and wallpapers are as follows. Hanji wallpaper has good things in controlling indoor space comfortably. Particularly, ability of controlling humidity of Hanji wallpaper affects indoor space comfort and human health. In the case indoor humidity is higher than outdoor humidity, according to the addition of ceramics, Hanji wallpapers maintain the humidity by retaining water vapor molecules in the pores of ceramics. Thus the Hanji wallpapers with ceramics, in particular rice-husk ceramics, make it superior to non-ceramics Hanji wallpapers in maintaining the humidity indoors.

Physicochemical and Functional Properties of Turnip (순무의 이화학적 및 기능적 특성)

  • 박용곤;김흥만;박미원;김성란;최인욱
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.2
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    • pp.333-341
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    • 1999
  • This study was conducted to investigate physicochemical and functional properties of turnip. The concentrations of antocyanin in the rind of root was 3.24mg%, which was about 3.5 times higher than those in the flesh. Among free amino acids in each part of turnip, glutamic acid showed the highest concentrations(132.5mg%) in the root followed by alanine(25.0mg%), valine (23.3mg%), and serine (20.7mg%). Contents of minerals in the root of turnip were 395.7mg% for potassium, 187mg% for calcium, 53.6mg% for phosphate, and 40.7mg% for magnesium. According to dynamic heasdspace analysis, dimethyl disulfide was the most abundant flavor components from the juice of fresh turnip and other volatile components such as dimethyl trisulfide, 1 hexanal, 2 methyl 1 butamine, and 1 penten 3 ol were also identified. From the blanched turnip, however, 3 isothiocyanato 1 propene and 4 isothiocyanato 1 butene were mainly detected. Fresh and blanched turnips were extracted with water or 70% acetone to investigate percent yield. The concentrations of total polyphenols in the extracts of fresh turnip were higher than those of blanched turnip. The nitrite scavenging effects of water and 70% acetone extracts from fresh or blanched turnip were decreased as pH was increased. Between two water extracts, the 30oC water extracts showed the higher values of electron donating ability than 95$^{\circ}C$ water extracts.

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Effects of Mungbean Flour Level in Combination with Microbial Transglutaminase on Physicochemical and Textural Properties of Low-salt Pork Model Sausages

  • Lee, Hong Chul;Chin, Koo Bok
    • Food Science of Animal Resources
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    • v.33 no.2
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    • pp.221-228
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    • 2013
  • This study was performed to evaluate the effects of various levels of mungbean flour (MF) (0-2.4%) on the quality characteristics of pork model sausages (PMS) in experiment 1 and also select the optimum level of MF to enhance the water retention and gelling properties of low-salt PMS (LSPMS) with or without microbial transglutaminase (MTGase) in experiment 2. In experiment 1, the addition of MF did not affect pH, chemical compositions (fat and moisture contents), color values, and functional properties (expressible moisture, EM (%) and cooking yield, CY (%)) of PMS. However, the addition of MF increased the chewiness of PMS and hardness if the mungbean flour at the level of more than 1.2% was incorporated. Since the interaction between the microbial transglutaminase (MTGase) treatment and MF level was not significant (p>0.05), data were pooled by different factors (MTGase treatment and MF level) in experiment 2. MF improved the water binding ability and textural springiness of LSPMS. On the other hand, MTGase treatment decreased the pH and cooking yield (%) of LSPMS, but increased most textural properties. In conclusion, the addition of MF could enhance the water retention and textural properties of PMS and LSPMS, regardless of MTGase, when it was added to over 1.2%. Based on these results, mungbean protein may interact with MTGase on the low-salt comminuted meat systems. Therefore, further study might be needed to understand the mechanisms of interaction between MTGase and functional components induced from MF.

Effects of Oryza sativa L. Aleurone Layer Extract on Bone Mineral Density and Bone-related Markers in the Ovariectomized Rat (흑미(Oryza sativa L.) 호분층 추출물이 난소절제 흰쥐의 골밀도 및 골대사 지표에 미치는 영향)

  • Nam, Song-Yee;Kim, Nam-Seok;Lee, Young-Min;Choi, Bong-Kyoum;Lee, Seon-Hye;Jang, Hwan-Hee;Kim, Jung-Bong;Lee, Hae-Jeung;Lee, Sung-Joon;Lee, Sung-Hyeon
    • Korean Journal of Pharmacognosy
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    • v.46 no.2
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    • pp.167-172
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    • 2015
  • Aleurone layer of Black rice (Oryza sativa L.) is enriched with anthocyanin that could increase bone density. This study was conducted to investigate the osteoporosis-preventing effects of the aleurone layer extract (BRE) on bone loss of ovariectomized (OVX) rats. OVX (or sham-operated) rats were assigned to three groups (n=8 per group): sham operated group (Sham); OVX control group (OVX); OVX-BRE group, OVX rats treated with BRE at 90 mg/kg B.W. The deionized water alone or deionized water with BRE was orally administrated to Sham, OVX or OVX-BRE groups, respectively for 12 weeks. High fat diet with 45 kcal% fat and water were fed to all rats ad libitum. Body weight was significantly decreased in the OVXBRE group compared to the OVX group (p<0.05). The bone mineral density and bone length of tibia were significantly higher in the OVX-BRE group compared to the OVX group and breaking force was significantly higher for the both tibia and femur bones. Serum estradiol concentration and calcium concentration of femur were higher in the OVX-BRE group than those of OVX group. However, serum alkaline phosphatase activity and parathyroid hormone concentration were decreased in the OVXBRE group compared to the OVX group. The results suggest that aleurone layer of Black rice is a potentially useful ingredient to protect against estrogen deficiency or menopause related osteoporosis.

Manufacturing and Antibacterial Characteristics of Functional Non-woven Fabrics Including Nano-silver Particles (은 나노 입자를 함유한 기능성 부직포의 제조와 항균특성)

  • Ro, Duck-Kil;Hong, Young-Ki;Park, Eun-Hee
    • Textile Coloration and Finishing
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    • v.20 no.6
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    • pp.18-25
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    • 2008
  • The functional non-woven fabrics have been applied in various industry fields, such as clothing, hygiene, environment, medical and so forth. The functional non-woven fabrics were manufactured by meltblown and finishing processes. These functional non-woven fabrics were based on 5wt% masterbatch using 2,000ppm nano-silver resin composite. Silver is one of the most universal antimicrobial substances. Nano-technology enables us to expand the surface area of silver particles markedly. Silver nano particles were successfully produced less than 50nm in size. The functional non-woven fabrics including nano-silver particles showed excellent antibacterial activities against Staphylococcus aureus (ATCC 6538) and Klebsieila pneumoniae (ATCC 4352). From the results, functional non-woven fabrics including silver nano particels probably will be available as a good and safe antibiotic alternative, such as mask medium filter, water purifier filter, hygiene wet tissues, marine products pad and so forth.

Effects of Prevention on the Cow Mastitis Based on Functional Non-woven Finishing Products (기능성 부직포 후가공 제품에 의한 젖소 유방염 예방효과)

  • Hong, Young-Ki;Lee, Mun-Soo
    • Textile Coloration and Finishing
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    • v.18 no.6 s.91
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    • pp.57-62
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    • 2006
  • The functional non-woven fabrics have been applied in various industry fields, such as clothing, hygiene, environment, medical and so forth. The functional non-woven fabrics for wet tissue were manufactured by meltblown and wet tissue finishing processes. The wet tissue was contained the various composition substances such as Benzalkonium Chloride(0.2292g), lodo-2-propynyl Butyl carbamate(0.0069g) and 5-Chloro-2-Methyl-Isothiazolin -3-one, 2-Methyl-Isothiazolin-3-one (0.0034g) with purified water (999.76g). In this study, the functional wet tissue based on meltblown nonwovens has been applied in dairy cattle for prevention on cow mastitis. Mastitis is the most costly disease results in lost milk production, decreased milk quality, milk discard, early culling of cows, drug costs and labor costs in dairy cattle. Therefore, this study was investigated to evaluate clinical effect of the functional wet tissue in mastitis control. The results, after experiment the functional wet tissue used group, demonstrated that the infection rate, cure rate and mean somatic cell count(SCC) were significantly decreased as compared to the control group.

In vitro cytotoxic activity of ginseng leaf/stem extracts obtained by subcritical water extraction

  • Lee, Kyoung Ah;Kim, Kee-Tae;Chang, Pahn-Shik;Paik, Hyun-Dong
    • Journal of Ginseng Research
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    • v.38 no.4
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    • pp.289-292
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    • 2014
  • Ginseng leaf/stem extract produced by subcritical water extraction at high temperature ($190^{\circ}C$) posses higher cytotoxic activity against human cancer cell lines than ethanol extract. Subcritical water extraction can be a great candidate for extraction of functional substance from ginseng leaves/stems.

Phosphate sorption to quintinite in aqueous solutions: Kinetic, thermodynamic and equilibrium analyses

  • Kim, Jae-Hyun;Park, Jeong-Ann;Kang, Jin-Kyu;Kim, Song-Bae;Lee, Chang-Gu;Lee, Sang-Hyup;Choi, Jae-Woo
    • Environmental Engineering Research
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    • v.20 no.1
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    • pp.73-78
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    • 2015
  • The aim of this study was to examine the phosphate (P) removal by quintinite from aqueous solutions. Batch experiments were performed to examine the effects of reaction time, temperature, initial phosphate concentration, initial solution pH and stream water on the phosphate adsorption to quintinite. Kinetic, thermodynamic and equilibrium isotherm models were used to analyze the experimental data. Results showed that the maximum P adsorption capacity was 4.77 mgP/g under given conditions (initial P concentration = 2-20 mgP/L; adsorbent dose = 1.2 g/L; reaction time = 4 hr). Kinetic model analysis showed that the pseudo second-order model was the most suitable for describing the kinetic data. Thermodynamic analysis indicated that phosphate sorption to quintinite increased with increasing temperature from 15 to $45^{\circ}C$, indicating the spontaneous and endothermic nature of sorption process (${\Delta}H^0=487.08\;kJ/mol$; ${\Delta}S^0=1,696.12\;J/(K{\cdot}mol)$; ${\Delta}G^0=-1.67$ to -52.56 kJ/mol). Equilibrium isotherm analysis demonstrated that both Freundlich and Redlich-Peterson models were suitable for describing the equilibrium data. In the pH experiments, the phosphate adsorption to quintinite was not varied at pH 3.0-7.1 (1.50-1.55 mgP/g) but decreased considerably at a highly alkaline solution (0.70 mgP/g at pH 11.0). Results also indicated that under given conditions (initial P concentration=2 mgP/L; adsorbent dose=0.8 g/L; reaction time=4 hr), phosphate removal in the stream water (1.88 mgP/g) was lower than that in the synthetic solution (2.07 mgP/g), possibly due to the presence of anions such as (bi)carbonate and sulfate in the stream water.

Change of Physicochemical Characteristics and Functional Components in the Cereals of Saengsik, Uncooked Food by Washing with Electrolyzed Water (전해수 처리한 생식 원료 곡류의 이화학적 특성 및 기능성 성분의 변화)

  • Jin, Tie-Yan;Oh, Deog-Hwan;Rhee, Chong-Ouk;Chung, Dong-Ok;Eun, Jong-Bang
    • Korean Journal of Food Science and Technology
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    • v.38 no.4
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    • pp.506-512
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    • 2006
  • We investigated changes in the physicochemical characteristics and functional components of the Saengsik cereal grains-milled rice, brown rice, glutinous rice, and barley- by washing with electrolyzed water. There were no changes in the composition of all cereal grains that was dried with hot-air and freeze-dried after being washed with electrolyzed water. The L and a values were not affected by drying in milled rice, brown rice, glutinous rice, or barley, but the b value increased in milled rice and glutinous rice-this increase was greater with hot-air drying than with freeze-drying. The dietary fiber content of the all cereals increased with hot-air drying. The niacin content decreased in all cereals; the extent of this change was greater with hot-air drying than with freeze-drying. The ${\beta}-glucan$ content of barley was higher in samples that underwent freeze-drying than in those treated by hot-air drying, but was not affected by washing with electrolyzed water. Thus, other than a change in color for milled and glutinous rice, no changes in the physicochemical characteristics and functional components these products were observed with freeze-drying. Data indicate that the electrolyzed water washing could be effectively used as pasteurization step in the uncooked cereal grains.