• Title/Summary/Keyword: steam distillates

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Volatile Compounds of Ascidian, Halocynthia roretzi

  • CHOI Byeong-Dae;HO Chi-Tang
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.28 no.6
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    • pp.761-769
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    • 1995
  • About 2.1g of pale yellow flavor concentrate was obtained from 10kg of chopped fresh ascidians through a Likens-Nickerson steam distilllation/solvent extraction. These concentrates could be fractionated to neutral $(91.5\%),\;basic\;(1.0\%),\;phenolic\;(3.2\%),\;and\;acidic\;(4.3\%)$ fractions. Total 65 volatile compounds were identified from those concentrates. The neutral fraction was representative flavor fraction which showed a similar flavor of total steam distillates of ascidian. The major compounds $(38.2\%\;of\;neutral\;fraction)$ were identified as carbon atoms 8 to 10 of alcohols. Among these volatile alcohols, 1-octanol, 2,7-decadien-1-o1, 3-octen-l-01, 7-decen-l-ol, and l-decanol were the dominent compounds found in neutral fraction. But the basic, phenolic, and acidic fractions differs from ascidian steam distillates flavor.

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Effect of Steam Distillates Prepared from Herbal Medicines on Immunostimulating Activity (생약으로부터 조제된 수증기 증류물의 면역활성)

  • 이창호;김인호;김영언;김용조;황종현;유광원
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.4
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    • pp.626-632
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    • 2004
  • Of hot- water extracts prepared from 30 kinds of herbal medicines, Acanthopanax senticosus (75.6% inhibition of control), Atractylodes macrocephale (71.3%), Panax ginseng (70.0%), Glycyrrhiza uralensis (66.3%) and Angelica acutiloba (63.1%) showed the potent tumor metastasis inhibition activity against colon 26-M3.1 lung carcinoma at 2.5 mg/kg body weight, whereas the other extracts had a little activity, except for Pueraria thunbergiana (58.6%) and C. leticulata (54.9%) having the intermediate activity. We also found that Citrus leticulata (1.80-fold of control), A. macrocephale (1.73-fold), A. senticosus and G. uralensis (1.64-fold) enhanced on Peyer's patch cells mediated-hematopoietic response at 100 $\mu\textrm{g}$/mL. In addition, these active herbal medicines were prepared into steam distillates to improve the food rheology as beverage, and to remove the inactive components. Among these steam distillates, A. macrocephale, G. uralensis and A. senticosus showed the significant tumor metastasis inhibition activity at 2.5 mg/kg body weight (58.7%, 50.3% and 41.9%, respectively), and A. macrocephale had the potent activity even at 0,25 mg/kg body weight (49.7%). In treatments of steam distillates with Peyer's patch cells, A. macrocephale and A. senticosus significantly increased the bone marrow cell proliferation even at 10 $\mu\textrm{g}$/mL (1.49- and 1.28-fold of control). Although steam distillates had lower activity than hot-water extracts, herbal medicines, such as A. macrocephale and A. senticosus, showed the high immunostimulating activity in hot-water extracts as well as steam distillates. Therefore, these results assumed the possibility that steam distillates from herbal medicines might be utilized to food industry for beverage.

Volatile Sulfur Components from Fresh Radishes of Korean Origin (한국산 무우의 휘발성 함유황화합물에 관하여)

  • Kim, Mee-Ree;Rhee, Hei-Soo
    • Korean journal of food and cookery science
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    • v.1 no.1
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    • pp.33-39
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    • 1985
  • The volatile sulfur components from two varieties of radishes ('Taeback' and 'Altali'), obtained by steam distillation and solvent ($CCl_4$) extraction, were isolated and charac-terized by GC/MS analysis. The GC profile of the volatile sulfur com-pounds in the steam distillates from two types of radishes was quite similar. 4-Me-thylpentyl, 3-methylthiopropyl, 4-methylthio-3-butenyl, 4-methylthiobutyl and 5-methyl-thiopentyl isothiocyanates, 5-methylthio-4-pentenenitrile, 1-methylthio-3-pentanone, and dimethyl sulfides were commonly identified. In the $CCl_4$ extract, 4-methylsulfinyl-3-bu-tenyl isothiocyanate was obtained as another major constituent. Whereas 4-methylthiobutyl isothiocyanate was found to be a predominent component in the steam distillate, 4-methylthio-3-butenyl isothiocyananate was a major one in the $C1_4$ extract.

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