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The Comparative Study on Decoctions of Yukmijihwang-tang (Liuweidihuang-tang) Extracted by Different Extraction Method and Extraction Time (전탕 방법 및 전탕 시간에 따른 육미지황탕 전탕액 비교 연구)

  • Kim, Jung-Hoon;Seo, Chang-Seob;Jeon, Woo-Young;Shin, Hyeun-Kyoo
    • Herbal Formula Science
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    • v.19 no.1
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    • pp.175-182
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    • 2011
  • Objectives : This study was performed to compare the differences between decoctions extracted by different extraction method and extraction time. Methods : Decoctions were prepared with pressed or non-pressed extraction conditions for 60, 120 and 180min. The yields of extracts, sugar contents, hydrogen ion concentrations(pH), the contents of reference compounds in Yukmijihwang-tang(Liuweidihuang-tang) were investigated. Results : The yields and the dissolved solid content containing sugar content of decoctions were more in pressed extraction method than unpressed extraction method, and they tended to be increased as extraction time increased. The pH values of decoctions methods did not show significant differences between pressed and unpressed extraction methods or extraction times. Most of reference compounds showed higher contents in pressed extraction method than unpressed extraction method and their contents were augmented according to increase of extraction time. The content of paeonol was decreased when extracted in more than 120min with pressed extraction method and tended to be decreased as extraction time increased in unpressed extraction method. Conclusions : The pressed extraction with long extraction time could be useful for decoction of Yukmijihwang-tang(Liuweidihuang-tang). However, another ingredients possible to decrease in such condition need to be considered to determine suitable extraction condition.

The Compositional Differences of Sipjeondaebo-tang(Siquandabu-tang) Decoctions Extracted by Different Extraction Method and Extraction Time (전탕 방법 및 전탕 시간에 따른 십전대보탕 전탕액 비교 연구)

  • Kim, Jung-Hoon;Seo, Chang-Seob;Jeon, Woo-Young;Shin, Hyeun-Kyoo
    • The Journal of Korean Obstetrics and Gynecology
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    • v.25 no.2
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    • pp.108-119
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    • 2012
  • Objectives: This study was performed to compare the differences between decoctions extracted by different extraction method and extraction time. Methods: Decoctions were prepared with pressurized or non-pressurized extraction for 60, 120 and 180min. The yield of extract, total soluble solid content, hydrogen ion concentration(pH) and the content of reference compound in Sipjeondaebo-tang (Siquandabu-tang) were investigated. Results: While yields and the total soluble solid of decoction were higher in pressurized method proportional to extraction time, pH values were lower in pressurized method and showed decreasing values with increasing extraction time. Albilflorin, ferulic acid, nodakenin, coumarin, cinnamaldehyde and glycyrrhizin were contained in decoctions by pressurized extraction method more than non-pressurized method whereas the content of coumarin was higher in decoctions by non-pressurized extraction method. In addition, coumarin was extracted increasingly with extraction time in decoctions by pressurized method, however, nine compounds except cinnamaldehyde showed the tendency of increasing proportional to extraction time. Conclusions: The results show that extraction methods including pressurized or non-pressurized extraction, and extraction time could affect the physicochemical characteristic or composition of Sipjeondaebo-tang(Siquandabu-tang) decoction.

Comparison of Extraction Procedures for the Determination of Capsaicinoids in Peppers

  • Jeon, Geonuk;Lee, Jun-Soo
    • Food Science and Biotechnology
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    • v.18 no.6
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    • pp.1515-1518
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    • 2009
  • The objective of this study was to compare 3 extraction methods including, solid phase extraction (SPE), acetonitrile extraction, and methanol extraction, for their usefulness as extraction methods to determine capsaicinoids. The determination of capsaicinoids in the extracts was carried out on a reverse-phased high performance liquid chromatography (HPLC) using a fluorescence detector. Three extraction methods, i.e., SPE, acetonitrile extraction, and methanol extraction were compared for the quantification of capsaicinoids using raw peppers and pepper powder. The highest analytical values were observed using methanol extraction and the lowest values using SPE. Also, the analytical method validation parameters such as accuracy, precision, limit of detection, limit of quantitation, and specificity were calculated to ensure the method's validity. This method provides a fast and accurate approach for the determination of capsaicinoids in peppers.

The controversial points for the assessment of soil contamination related to the change of pH of extraction solution in using partial extraction in standard method in Korea (국내 토양오염 공정시험방법의 용출법 사용시 용출액의 pH의 변화가 토양 오염 평가에 미치는 문제점)

  • 오창환;유연희;이평구;이영엽
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • pp.294-297
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    • 2000
  • Heavy metals are extracted from Chonju stream sediment, roadside soils and sediments along Honam expressway, soils and tailings from mining area using partial ectraction in Standard Method, partial ectraction method with maintaining 0.1N of extraction solution and acid digestion. In samples having buffer capacity against acid, 0.1N of extraction solution can not be maintained and pH of extraction solution increases up to 8.0 when partial extraction in Standard Method is used. The averages and ranges of (heavy metals extracted using partial extraction in standard method, HPE)/(heavy metals extracted using partial extraction method with maintaining 0.1N of extraction solution, HPEM) values are 0.506 and 0.145~1.126 in Cd, 0.534~ and 0.078~0.928 in Zn, 0.461 and 0.041~1.715 in Mn, 0.359 and 0.011~0.874 in Cu, 0.195 and 0.018~1.785 in Cr, 0.710 and 0.003~3.075 in Pb, and 0.088 and 1.73$\times$10$^{-5}$ ~0.303 in Fe. These data indicate that the difference between HPE and HPEM is big in the order of Fe, Cr, Cu, Mn, Cd, Zn and Pb. It is quite possible that the partial extraction method in Standard Method of soil in Korea is not adequate for an assessment of contamination in area where buffer capacity of soil will be decreased or lost after a long term exposure of soils to environmental damage.

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Extraction and Concentration Method of Red Ginseng by Vacuum Impulse System (진공력적방식(Vacuum Impulse Stem)을 이용한 홍삼의 추출 방법)

  • Kim Cheon-Suk;Chang Gap-Moon
    • Journal of Ginseng Research
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    • v.23 no.2
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    • pp.88-92
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    • 1999
  • Hydrolysis properties of ginseng saponins in processing of extraction with vacuum impulse system extraction method were compared with multi-stage extraction methods. Crude saponin content of the extract produced by vacuum impulse system extraction method was $11.5\%,$ compared with multi-stage extraction method (about $8.13\%).$ Also the yield of the extract increased about $6.7\%.$ The flavor and aroma of ginseng extract with vacuum impulse system extraction method are stronger than multi-stage extraction methods and people have a tendency to like more. The color was similar to existing extraction items and the liquidity ratio was high. Vacuum impulse system extraction method could save human resources because of short extraction time and automatic operation of processing. With HPLC pattern, We could ascertain the truth that hydrolysis properties of ginseng saponin was restrained in the extraction processing, vacuum impulse system extraction method.

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Studies on the Extraction Efficiency of Polyacetylene from Korean Ginseng (추출방법에 따른 인삼의 Polyacetylene 성분 회수율 비교 연구)

  • 박찬엘;박창호
    • KSBB Journal
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    • v.16 no.3
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    • pp.264-268
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    • 2001
  • The extraction efficiencies of panaxynol and panaxydol were optimal at 80$^{\circ}C$ with soxhlet method. The extraction efficiencies increased up to 45$^{\circ}C$ with shaking method. Amounts of panaxynol and panaxydol were determined by gas chromatography. Extracted quantities of panaxynol and panaxydol using the shaking method increased over a period of 14 hours. The efficiencies of panaxynol and panaxydol extraction by soxhlet and shaking methods were higher for smaller particle sizes. Upon water swelling treatment, extraction efficiencies of panaxynol and panaxydol decreased gradually with time for both methods.

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A Preliminary Study of Patchouli Oil Extraction by Microwave Air-Hydrodistillation Method

  • Kusuma, Heri Septya;Altway, Ali;Mahfud, Mahfud
    • Korean Chemical Engineering Research
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    • v.55 no.4
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    • pp.510-513
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    • 2017
  • Patchouli oil extraction in general is still using conventional methods that require a long time of extraction. It is therefore necessary to develop extraction methods to obtain patchouli oil with optimum yield and quality. One of the new methods, which has been successfully developed, is microwave hydrodistillation (MHD). In addition to optimizing the extraction process of patchouli oil, this study also used microwave air-hydrodistillation (MAHD). Based on the research results, extraction using MAHD method can produce higher yield of patchouli oil when compared using MHD method. Also, based on the results of the analysis by GC-MS, extraction using MAHD method can produce quality of patchouli oil that is almost the same when compared using MHD method. This is supported by the results of the analysis by GC-MS, which showed that the content of patchouli alcohol is the main component of patchouli oil, and is almost the same for patchouli oil extracted using MHD method (26.32%) and MAHD method (25.23%).

Quality and characteristics of ginseng seed oil treated using different extraction methods

  • Lee, Myung-Hee;Kim, Sung-Soo;Cho, Chang-Won;Choi, Sang-Yoon;In, Gyo;Kim, Kyung-Tack
    • Journal of Ginseng Research
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    • v.37 no.4
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    • pp.468-474
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    • 2013
  • Ginseng seed oil was prepared using compressed, solvent, and supercritical fluid extraction methods of ginseng seeds, and the extraction yield, color, phenolic compounds, fatty acid contents, and phytosterol contents of the ginseng seed oil were analyzed. Yields were different depending on the roasting pretreatment and extraction method. Among the extraction methods, the yield of ginseng seed oil from supercritical fluid extraction under the conditions of 500 bar and $65^{\circ}C$ was the highest, at 17.48%. Color was not different based on the extraction method, but the b-value increased as the roasting time for compression extraction was increased. The b-values of ginseng seed oil following supercritical fluid extraction were 3.54 to 15.6 and those following compression extraction after roasting treatment at $200^{\circ}C$ for 30 min, were 20.49, which was the highest value. The result of the phenolic compounds composition showed the presence of gentisic acid, vanillic acid, ferulic acid, and cinnamic acid in the ginseng seed oil. No differences were detected in phenolic acid levels in ginseng seed oil extracted by compression extraction or solvent extraction, but vanillic acid tended to decrease as extraction pressure and temperature were increased for seed oil extracted by a supercritical fluid extraction method. The fatty acid composition of ginseng seed oil was not different based on the extraction method, and unsaturated fatty acids were >90% of all fatty acids, among which, oleic acid was the highest at 80%. Phytosterol analysis showed that ${\beta}$-sitosterol and stigmasterol were detected. The phytosterol content of ginseng seed oil following supercritical fluid extraction was 100.4 to 135.5 mg/100 g, and the phytosterol content following compression extraction and solvent extraction was 71.8 to 80.9 mg/100 g.

Extraction and Preprocessing Methods for Ginsenosides Analysis of Panax ginseng C.A. Mayer (인삼의 진세노사이드 분석을 위한 추출 및 전처리법)

  • Kim, Geum-Soog;Hyun, Dong-Yun;Kim, Young-Ock;Lee, Sung-Woo;Kim, Young-Chang;Lee, Seung-Eun;Son, Yeong-Deck;Lee, Min-Jeong;Park, Chung-Berm;Park, Ho-Ki;Cha, Seon-Woo;Song, Kyung-Sik
    • Korean Journal of Medicinal Crop Science
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    • v.16 no.6
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    • pp.446-454
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    • 2008
  • An advanced extraction method by ultrasonic extraction with applied solid phase extraction (SPE) has been developed for the determination of simultaneous eight major ginsenosides, namely ginsenosides Rg1, Re, Rf, Rb1, Rg2, Rc, Rb2, and Rd in the root of Panax ginseng. Four extraction methods including n-BuOH reflux extraction (Method A), 70% EtOH reflux extraction (Method B), 50% MeOH reflux extraction with SPE (Method C), and 50% MeOH ultrasonication with SPE clean-up process (Method D) were investigated for the determination of eight major ginsenosides. Total contents of ginsenosides were highest by extraction of Method C as $2.408{\pm}0.011%$. However, Method D was evaluated as relatively simpler and more efficient method due to short extraction time, small solvent consumption and less expensive, compared to conservative reflux method. Ginsenosides were also satisfactorily separated with good resolution and the accuracy range was between 1.05 and 4.06% as relative standard deviation (RSD) by Method D. SPE condition and HPLC condition were further optimized for determination of eight major ginsenosides by the ultrasonic extraction method. Conclusively, ultrasonic extraction of 2 g sample of ginseng using ultrasonic bath and 1 loading for SPE was evaluated as proper condition for extraction of ginseng.

Sequential Extraction of Soil Heavy Metals Aided by Ultrasound Sonication (토양 중금속의 초음파 연속추출)

  • Suh, Jj-Won;Yoon, Hye-On
    • Journal of the Mineralogical Society of Korea
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    • v.23 no.1
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    • pp.85-91
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    • 2010
  • The various forms of heavy metals in soil environments have been studied by sequential extraction method. We tested conventional Tessier sequential extraction and new ultrasound-sonication extraction methods, and compared their extraction efficiency. Total As, Cd, Cu, Pb, and Zn contents of the target soil (NIST SRM 2710 Montana Soil), by three methods (USEPA Method 3050B, KBSI Method, and ultrasound-sonication method) were all consistent with the certified values. Sequential extraction efficiency along with step-wise extraction values was similar in both Tessier method and ultrasound-sonication method. The ultrasound-sonication method took about 3 hours to complete whole procedure while the Tessier sequential extraction method took around 12 hours. Ultrasound-sonication method was estimated as one of the best methods with a relatively short application time and no requirement of high temperature treatment.