• Title, Summary, Keyword: supercritical carbon dioxide extraction

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Ethanol Modified Supercritical$CO_2$ Extraction of Daidzein from Soybean (에탄올 보조용매 초임계$CO_2$를 이용한 대두 Daidzein 추출)

  • 부성준;변상요
    • KSBB Journal
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    • v.16 no.1
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    • pp.95-98
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    • 2001
  • Various factors affecting the supercritical carbon dioxide extraction of daidzein from soybean were studied. Daidzein was not extracted with pure supercritical carbon dioxide. The ethanol was an efficient modifier for supercritical carbon dioxide to extract daidzein. The extraction efficiency increased as the pressure increased up to 300 bar. At $35^{\circ}C$ and 300 bar, 93% of daidzein was extracted with supercritical carbon dioxide modified with 15% of ethanol.

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Extraction of Soybean Oil Using Supercritical Carbon Dioxide and Its Characteristics (초임계 탄산가스를 이용한 대두유의 추출과 추출대두유의 성질)

  • Kim, In-Hwan;Yoon, Suk-Hoo
    • Korean Journal of Food Science and Technology
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    • v.23 no.6
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    • pp.677-682
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    • 1991
  • Extraction of soybean oil from full tat soybean flour was performed using a supercritical carbon dioxide extraction system. Extraction pressure and temperature of the process were 3,000-7,000 psig and $40-70^{\circ}C$, repectively. For the extraction of lg of soybean oil, 25l of carbon was consumed at 7,000 psig and $60^{\circ}C$, whereas more than 2501 of carbon dioxide was consumed at 3,000 psig and $60^{\circ}C$. The solubility of soybean oil in supercritical carbon dioxide decreased with the increase in temperature below 6,000 psig, and the reverse trend was observed above 6,000 psig. At 6,000 psig the solubilities were shown to be, constant regardless of extraction temperature. Soybean oils , extracted with supercritical carbon dioxide were lighter in color and contained less phosphorus than those extracted with hexane.

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The activation of PPAR-α and Wnt/β-catenin by Paeonia lactiflora root supercritical carbon dioxide extract

  • Kim, Bora
    • Journal of the Korean Applied Science and Technology
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    • v.36 no.4
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    • pp.1136-1142
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    • 2019
  • The root of Paeonia lactiflora has been used in Chinese medicine. We conducted to check the comparative qualities of ethanol solvent extraction (PLE) and supercritical carbon dioxide extraction (PLS) of P. lactiflora root. PLE had higher antioxidant and polyphenol contents than PLS. But, PLS were significantly increased peroxisome proliferator-activated receptor (PPAR)-α. In addition, PLS inhibited the adipocyte differentiation of 3T3-L1 cells. When treated with the extract at a concentration of 100 ㎍/mL, the Wnt/β-catenin pathway reporter luciferase activity of HEK 293-TOP cells increased approximately by 3-folds compared to that of the untreated control group. These results indicate that P. lactiflora supercritical carbon dioxide extract may serve as a cosmeceutical for improving skin barrier function and the treatment of obesity.

The Activation of PPAR-α and Wnt/β-catenin by Luffa cylindrica Supercritical Carbon Dioxide Extract

  • Kim, Bora
    • Natural Product Sciences
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    • v.25 no.4
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    • pp.341-347
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    • 2019
  • Luffa cylindrica (LC) is a very fast-growing climber and its fruit have been considered as agricultural wastes. We conducted to check the comparative qualities of ethanol solvent extraction (LCE) and supercritical carbon dioxide extraction (LCS) of L. cylindrica fruit and seed. LCS had higher antioxidant and polyphenol contents than LCE. LCS were significantly increased peroxisome proliferator-activated receptor (PPAR)-a and involucrin expression as epidermal differentiation marker in 3D skin equivalent model. LCS also showed antimicrobial activity against Staphylococcus aureus, a causative bacteria in atopic dermatitis. In addition, LCS inhibited the adipocyte differentiation of 3T3-L1 cells. When treated with the extract at a concentration of 100 ㎍/mL, the Wnt/β-catenin pathway reporter luciferase activity of HEK 293-TOP cells was increased approximately by 2-folds compared to that of the untreated control group. These results indicate that L. cylindrica supercritical carbon dioxide extract may serve as a cosmeceutical for improving skin barrier function and the treatment of obesity.

Extraction of Oil from Chlorella vulgaris Using Supercritical Carbon Dioxide and Organic Solvent (초임계 이산화탄소와 유기용매를 이용한 Chlorella vulgaris 오일의 추출)

  • Ryu, Jong-Hoon;Park, Mi-Ran;Lim, Giobin
    • KSBB Journal
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    • v.29 no.2
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    • pp.98-105
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    • 2014
  • Three different types of extraction processes, which used supercritical carbon dioxide ($SCCO_2$) and organic solvent, were attempted to improve the extraction yield of oil from Chlorella vulgaris: cosolvent-modified $SCCO_2$ extraction, $SCCO_2$ extraction with ultrasonic sample treatment in organic solvent, and static extraction with organic solvent followed by dynamic $SCCO_2$ extraction. Among these, the last $SCCO_2$ extraction process was found to be most effective in the extraction of oil. Compared with pure $SCCO_2$ extraction, the extraction yield of oil was observed to increase about 7 times.

A Study on Optical Analysis of the Color Difference Caused by the Overprinting Sequence of Ink (잉크의 중첩인쇄순서에 기인하는 색차의 광학적 해석에 관한 연구)

  • 강상훈
    • Journal of the Korean Printing Society
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    • v.16 no.1
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    • pp.39-53
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    • 1998
  • The extraction rate of ginger from Korean-grown ginger root with supercritical carbon dioxide was measured as a function of flow rate of supercritical carbon dioxide, particle size, temperature and pressure. the extraction rate increased as the particle size decreased due to a decrease in the diffusion path. The extraction rate were independent of flow rate of supercritical carbon dioxide in a plot of ginger oil yield versus extraction time. This indicated that the extraction process is controlled by intraparticle diffusion within a particle of ginger root. In the case of temperature and pressure effect, the experimental results showed that the extraction rate decreased with an increase in temperature and increased with an increase in pressure.

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Coffee Deodorization with Supercritical Carbon Dioxide (초임계 이산화탄소를 이용한 커피의 탈취)

  • Lee, Joo-Hee;Kim, Hyung-Bae;Byun, Sang-Yo
    • KSBB Journal
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    • v.22 no.5
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    • pp.336-340
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    • 2007
  • Supercritical carbon dioxide was used to remove coffee odors. The odor removal efficiency was tested with coffee drink prepared by the espresso extraction method. Five typical odors in coffee were analyzed with GC and these odors in deodorized coffee were compared to those in control. Supercritical carbon dioxide extraction conditions were optimized as 350 bar and 70$^{\circ}C$ because the solvating power of supercritical fluid is depend on the density which is determined by temperature and pressure. A modified head space method was applied to collect coffee odors in coffee drink prepared by the espresso extraction method. Odors generated in coffee drink made with deodorized coffee powder were reduced by 73% in total mass of typical five coffee odors.

Extraction Efficiencies of Organochlorine Pesticides Spiked in Fish Tissues by Supercritical Carbon Dioxide (초임계이산화탄소에 의한 어류조직 중 유기염소계 농약의 추출수율)

  • Lim, Sang-Bin;Jwa, Mi-Kyung;Kang, Soon-Bae
    • Korean Journal of Food Science and Technology
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    • v.28 no.3
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    • pp.475-481
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    • 1996
  • A simple, fast, inexpensive method hal been developed to extract organochlorine pesticide spiked in fish tissues by supercritical carbon dioxide. Following static supercritical fluid extraction (SFE), pesticides are collected by rapidly depressurizing the carbon dioxide effluent through a 0.79 mm i.d. metering valve into a capped screw-top tube. Percent recovers of standard organochlorine pesticides mixture (SOPM) increased with the decrease of the extraction temperature at 103 bar. Maximum average percent recovery of SOPM was 98% at $40^{\circ}C/172\;bar$ Average recoveries of SOPM spiked in Pacific cod, flatfish and common squid were 85,74,and 83% respectively at $40^{\circ}C/172\;bar$ Application of supercritical carbon dioxide ectraction offers and attractive alternative to the use of organic solvents for extraction of organochlorine pesticides from fish tissues.

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Extraction of Impregnated Metals from Charcoal Active Carbon with Supercritical Carbon Dioxide (초임계 이산화탄소에 의한 금속 담지 활성탄으로부터 담지금속의 추출)

  • Lee, Jong-Chol;Ryu, Sam-Gon
    • Journal of the Korea Institute of Military Science and Technology
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    • v.11 no.5
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    • pp.99-106
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    • 2008
  • Metal ions such as Cu and Cr were extracted from the Cu, Cr and Ag impregnated active carbon by contacting the solid surfaces with supercritical carbon dioxide(Sc-$CO_2$) containing chelating agents. About 10g of the active carbon sample were loaded in a vertical tube extractor contacting with $CO_2$ flowing from the bottom of the tube for 6hrs. The ligands used were acetyl acetone(AA) and Cyanex-302(C-302). Water and methanol were used as entrainers to study the effect of co-solvent to $CO_2$. Experimental results showed that C-302 was more effective than AA in removing Cu with the maximum extraction of 42.0wt%, while 57.6wt% of Cr was extracted with AA from the sample.

Fatty Acids and Protein Recovery of Squid Viscera with Supercritical Carbon Dioxide

  • Park, Ji-Yeon;Back, Sung-Sin;Chun, Byung-Soo
    • Journal of Marine Bioscience and Biotechnology
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    • v.1 no.3
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    • pp.206-212
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    • 2006
  • Supercritical carbon dioxide ($SCO_2$) extraction was investigated as a method for protein-sourcing material from squid viscera. To find the optimum conditions, the extraction of squid viscera using $SCO_2$ was performed under the conditions of temperature range from 35 to $45^{\circ}C$ and constant pressure 25 MPa using Hewlett-Packard 7680T. Also from result of SDS-PAGE, the protein denaturation was minimized when using $SCO_2$ extraction. And the major amino acids in the squid viscera were glutamic acid, aspartic acid, lysine, leucine, arginine, alanine, glycine, isoleucine, and valine. The main fatty acids from squid viscera were myristic acid, palmitic acid, stearic acid, heneicosanoic acid, palmitoleic acid, elaidic acid, oleic acid, eicosenoic acid, EPA (eicosapentaenoic acid), and DHA (docosahexaenoic acid).

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