• Title/Summary/Keyword: Distillation extraction

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Extraction Method of Antioxidants in Soybean Oil (Sweep Co-Distillation 법에 의한 산화방지제의 추출법)

  • 황혜정
    • The Korean Journal of Food And Nutrition
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    • v.12 no.4
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    • pp.358-363
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    • 1999
  • This study was conducted to evaluate the extraction methods for the determination of antioxidants in soybean oil. Recovery rates of various antioxidants in soybean oil showed similar rates as 80.4~102.1% by solvent/solvent extraction method and 89.9~106.4% by sweep co-distillation method except 46.6~61.2% of PG at corresponding spiked concentractions. The maximun recovery rates of antioxidnts were obtained when extraction time and extraction temperature used in UNITREX were 20min and 21$0^{\circ}C$ respectively. In the recovery rates with the activation of florisil when 2% ofwater was added to florisil the highest recovery rates for TBHQ, BHA, BHT were obtained by sweep co-distillation met-hod. Therefore sweep co-distillation method showed less solvent simple operation and high recovery rate compared with solvent/solvent extraction method.

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Volatile components of Schizandra Chinensis Bullion (오미자(Schizandra Chinensis Bullion)의 휘발성 성분)

  • Kim, Ok-Chan;Jang, Hee-Jin
    • Applied Biological Chemistry
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    • v.37 no.1
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    • pp.30-36
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    • 1994
  • The essential oil of Schizandrae Fructus was extracted by simultanous distillation-extraction and steam distillation and analyzed by GC and GC-MS. The oil content of Schizandrae Frutus was 0.64% when extracted by steam distillation and 0.88% in case of simultanous distillation extraction and sensory analysis of the oil indicated woody, camphorous, spicy and sour characteristic notes. The experimental results confirmed the presence 47 volatile components, the major components were ${\gamma}-terpinene$, p-cymene, ${\alpha}-ylangne$ and ${\beta}-elemene$. The oil was fractioned into ten fractions and 4 fraction of them have a good aroma character. The application of the oil showed the utilization possibility as flavoring materials for Korea tea.

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Volatile components Artemisia apiaceae Herba (청호(Artemisia apiaceae Herba)의 휘발성 성분)

  • Kim, Ok-Chan;Jang, Hee-Jin
    • Applied Biological Chemistry
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    • v.37 no.1
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    • pp.37-42
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    • 1994
  • The essential oil of Artemisia apiaceae Hence was extracted by simultanous distillation-extraction and steam distillation and analyzed by GC and GC-MS. The oil content of Artemisia apiaceae Hance was 0.23% when extracted by steam distillation and 0.37% in case of simultaneous distillation-extraction and sensory analysis of the oil indicated camphorous and herbal characteristic notes. the experimental results confirmed the presence 34 volatile components, the major components were camphene, camphor borneol and caryophyllene. 5 fraction have a good aroma character among 11 fraction were seperated by using silicagel column chromatography. This can is used for the pharmaceutical industry because of amedical action.

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Changes in Extraction Efficiency of Pine Needles depending on Extraction Method and the Condition (추출 방법과 조건에 따른 소나무 지엽 추출효율 변화)

  • Kim, Dong Sung;Kim, Hyung Min;Sung, Yong Joo;Kang, Seog Goo;Kang, Ho-Yang;Lee, Jun-Woo;Kim, Se Bin;Park, Gwan-Soo
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.48 no.1
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    • pp.93-99
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    • 2016
  • The extraction efficiency depending on the extracting methods and the conditions of extraction was investigated. The common steam extraction was compared to the distillation extraction method. The effects of the samples size and the extraction time on the extract yield were also investigated by using UV-Vis spectrophotometer. One of the functional components of pine needle extract as the natural phenol base components were detected by the UV-VIS at around 235 nm wavelength range. The absorbance intensity at around 235 nm wavelength of the pine needle extract was used as the indicator of the extraction efficiency in this experiment. The distillation extraction showed the higher extract yield than the steam extraction. The grinding treatment of pine needles also resulted in the better extract performance, but the severe grinding showed a little decrease in the extract yield especially in case of the distillation extraction method. More than half of the extract was collected at the first stage of the extraction, that was the first 15 minutes in the total 60 minutes extraction.

Characteristics of Elsholtzia splendens Extracts on Simultaneous Steam Distillation Extraction Conditions (수증기증류조건에 따른 꽃향유 추출물의 품질특성)

  • Youn, Kwang-Sup;Hong, Joo-Heon;Choi, Yong-Hee
    • Food Science and Preservation
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    • v.13 no.5
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    • pp.623-628
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    • 2006
  • This study was performed to develop extract materials from Elsholtzia splendens by analyzing the functionality and aroma profile by the simultaneous steam distillation extraction. The qualities of extracts such as total yield, total phenolic compound and electron donation ability were affected by extraction temperature than time. The main flavor compounds were analyzed as estragole, thymol and beta-caryophyllene. The response variables had significant with extraction temperature than tim. The established model was suitable to predict calculated value in experimental ranges. The optimum extinction conditions, which were limited of maximum value for dependent variables were $108^{\circ}C$ and 2.1 hr in the simultaneous steam distillation extraction method.

High-Purity Purification of Indole Contained in Coal Tar Absorption Oil by Extraction-Distillation-Crystallization Combination (추출-증류-결정의 조합에 의한 콜타르 흡수유 중에 함유된 인돌의 고순도 정제)

  • Kim, Su Jin
    • Applied Chemistry for Engineering
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    • v.25 no.3
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    • pp.330-336
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    • 2014
  • Purification of indole contained in model coal tar absorption oil was examined by extraction-distillation-crystallization combination. The absorption oil consists of nine components such as four kinds of nitrogen heterocyclic compounds (9.2% quinoline, 2.4% iso-quinoline, 4.7% indole, 2.4% quinaldine), three kinds of bicyclic aromatic compounds (14.2% 1-methylnaphthalene, 31.8% 2-methylnaphthalene, 23.5% dimethylnaphthalene), 5.5% biphenyl and 3.3% phenyl ether. 99.5% indole was recovered by combination of formamide extraction-distillation-solute crystallization using n-hexane. Furthermore, the recovery process of indole contained in coal tar absorption oil was studied by using the experimental results obtained by each operation of this work.

A STUDY ON THE ANALYSIS OF VOLATILE ORGANIC ACIDS IN TOBACCO LEAVES (I) (잎담배중의 휘발성 유기산 분석에 관한 연구(I))

  • 손현주;김신일
    • Journal of the Korean Society of Tobacco Science
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    • v.7 no.1
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    • pp.85-92
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    • 1985
  • Extraction efficienties of volatile organic acids in tobacco leaves according to several extraction methods were investigated and contents of volatile organic acids in 16 kinds of tobacco leaf varieties were compared. Extraction efficiency according to simultaneous distillation and extraction was 5 to 10 times higher than that according to solvent extraction, steam distillation, essential oil extraction or continuous extraction and distillation. Total contents of volatile organic acids were 1.62 to 12.94mg per l00g of sample in aromatic tobacco varieties,0.12 to 2.08mg in flue-cured tobacco leaves, and trace in burleys. Among the Korean aromatic tobacco varieties, total contents of volatile organic acids in ST374-3 were the highest, 4.66mg per l00g of sample, and those in Sohyang and Hyangcho were low, 1.69mg and 1.62mg, respectively. Among flue-cured tobacco varieties, those in NC2326 were the highest, 2.08mg per 100g of sample, but those in the other varieties were not more than 0.80mg per 1 00g of sample. Total contents of volatile organic acids in acidic hydrolysis with 0.1 M tartaric acid were higher than in non-acidic condition in all kinds of tobacco varieties.

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Design of Waste Solvent Treatment Process from LCD Manufacturing Process (LCD 제조공정에서의 폐용매 분리처리를 위한 공정 설계)

  • Yoon, Mun-Kyu;Lee, Moon-Yong
    • Clean Technology
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    • v.14 no.4
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    • pp.275-280
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    • 2008
  • In this study, we carry out economic and technical feasibility study for treatment process of waste solvent such as SD waste solution and stripper solution from LCD manufacturing process. Extensive screening work has been done for selecting the best extraction solvent. As a result, it is shown that $CHCl_3$ is the most adequate extraction solvent for separation and recovery of both SD waste solvent and stripper waste. Rigorous simulation study has been carried out for extraction process and distillation process as a candidate of waste solvent treatment. The result shows that the solvent extraction process is more beneficial than the simple distillation process.

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An Rapid Extraction of Ginseng Saponin Compounds (인삼사포닌 화합물의 신속한 추출)

  • Kwak, Yi-Seong;Kim, Mi-Ju;Kim, Eun-Hee;Kim, Yeoung-Ae
    • Korean Journal of Food Science and Technology
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    • v.29 no.6
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    • pp.1327-1329
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    • 1997
  • A new rapid saponin extraction method was developed with using of organic solvent and waring blonder. There was a good correlation between previous distillation method and this method in f major ginsenosides ($Rb_1$, $Rb_2$, Rc, Rd, Re, Rg1) contents. When the ratio of methanol and chloroform was 7:3, this method showed similar saponin contents (total major. ginsenosides contents) comparing with distillation method. Contents of total major ginsenosides were 2.41% in this method and 2.54% in distillation method. However, crude saponin content of this method was higher than that of distillation method.

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Production of Phytoncide from Korean Pine Cone Waste by Steam Distillation (잣송이 부산물로부터 수증기 증류법에 의한 피톤치드의 추출)

  • Kim, Bae yong;Lee, Chul-Tae
    • Applied Chemistry for Engineering
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    • v.26 no.6
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    • pp.648-658
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    • 2015
  • Extraction of phytoncide oil from korea pine cone waste without damaging the pine cone tree itself was investigated using a steam distillation method. Also various components in the extracted phytoncide oil were separated using a column chromatography method. The extraction of phytoncide oil was effectively proceeded, and the maximum production yield of phytoncide oil could be obtained under $100^{\circ}C$ of distillation temperature and within 30 minute of distillation time. According to chemical analysis, it was found that the phytoncide oil from korea pine cone waste was consisted of more than 12 components such as ${\alpha}$-pinene, ${\beta}$-pinene, D-limonene, as main components. In addition, the aqueous hydrogel containing other components such as verbenone, ${\alpha}$-terpinieol, fenchol, different from components of phytoncide oil itself could be obtained through the steam distillation.