• Title/Summary/Keyword: Phenol compounds

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Development of Soybean Snacks and Analysis of Bioactive Compounds (조미 콩 스낵 개발 및 생리활성물질 분석)

  • Yoo, Kyung-Mi;Hwang, Ja-Young;Lee, Sun-Mee
    • The Korean Journal of Food And Nutrition
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    • v.24 no.4
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    • pp.702-707
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    • 2011
  • The purpose of this study was to analyze the bioactive compounds of soybean snacks and to carry out a sensory evaluation of those variations which had various seasoning mixing ratio. Five soybean snacks were developed for these experiments. Proximate composition, the contents of total phenol compounds and isoflavone, and sensory characteristics of the soybean snacks were measured. There were significant differences in amounts of isoflavones and total phenolic compounds of soybean snacks($p$ <0.05). The seasoned soybean snacks had a higher level of daidzein and genistein contents than did control group. The total phenol compound contents of the control group was 210.3 mg gallic acid equivalents/100 g, whereas those for individual soybean snacks(A~E) were 152.3, 160.2, 162.4, 158.4 and 164.6 mg gallic acid equivalents/100 g, respectively. In sensory evaluation, there were significant differences($p$ <0.05) in taste, texture, and overall acceptability of the soybean snacks.

The Degradation of Phenolic Compounds by Lignolytic Streptomyces strains (Lignin을 분해하는 Streptomyces strainsdop 의한 페놀화합물의 분해)

  • 김태전
    • Journal of Environmental Health Sciences
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    • v.26 no.3
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    • pp.86-91
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    • 2000
  • The purpose of this was to investigate the degradation efficiency of phenol compounds(catechol, ferulic acid, protocatechuic acid, syringic acid, vanillic acid) by Streptomyces halstedii scabies SAI-36, Streptomyces avendulas SA2-14, and Strptomyces badius(ATCC 39117, control group). The results were as follows: Catechol showed the degradation efficiency that is lower than 50% in three strains. Ferulic acid and vanillic acid showed high degradation efficiency of 98.8% and 94.5% respectively by Streptomyces lavendulas SA2-14. protocatechuic acid and syringicacid showed high degradation efficiency of 89.6% and 77.9%. The degradation efficiency of catechol by Streptomyces halstedii scabies SAI-36, Streptomyces lavendulas SA2-14 and Streptomyces badius(ATCC 39117) was low as 49.2%, 40.2% and 20.2% respectively. But the degradation of other phenolic compoumds except catechol by Streptomyces laven-dulas SA2-36 and Streptomyces badius(ATCC 39117). The results demonstrated that two experimental strains are superior ability to control group in degradation of phenol compounds and Streptomyces lavendulas SA2-14 was superior of two experimental strain. This results were consistent with previous research results that Streptomyces lavendulas SA2-14 was the best strain in degradation ability for lignin, decoloration abilities for variousdyes, and various enzyme production abilities. Therefore, it is suggested that lignin can be used as a indicator when selecting Actinomycetes for degradation of non-degradable materials such as phenol compounds.

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Chemical compositions of the sap of Acer mono MAX in Cheonnam region. (전남지역 고로쇠나무 수액의 성분분석)

  • 현규환;정현채;김준선
    • Korean Journal of Plant Resources
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    • v.12 no.3
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    • pp.215-220
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    • 1999
  • To find out the temporal and spatial variations in contents of sugar, phenolic compounds and mineral, the sap of Acer mono MAX. were harvested from several regions and periods, and those contents were determined by solvent fractionation, TLC, HPLC and atomic absorption spectrophotometer. Most of all the free sugar contained in the sap of Acer mono MAX. was sucrose, with range of 1.35 to 3.41%. The content of total phenolic compound in the sap of Acer mono MAX. was distributed from 0.034 to 0.151 mg/100m1, and most of phenolic acid was phloroglucinol. The contents of Na, K, Ca and Mg were ranged from 24.11 to 33.15, from 13.75 to 22.10, from 47.19 to 88.00 and from 2.48 to 6.31 ppm, respectively. Contents of sugar, phenolic compounds and mineral decreased sharply at the later harvest. Comparing two different methods of the sap harvest, bore method and groove method, the contents of compounds in the study were determined higher with groove method.

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Quality Properties of Seasoned-Dried Pacific Saury Treated with Liquid Smoke -1. Volatile Flavor Compounds in Commercial Liquid Smokes-

  • Park Sung-Young;Kim Hun;Cho Woo-Jin;Lee Young-Mi;Lee Jung-Suck;Cha Yong-Jun
    • Fisheries and Aquatic Sciences
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    • v.4 no.4
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    • pp.229-237
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    • 2001
  • In order to identify of volatile flavor compounds and polycyclic aromatic hydrocarbons (PAHs) in commercial liquid smokes, this study was conducted to analyze volatile flavor compounds by solvent extraction and/or Purge & Trap method/GC/MSD. A total of 156 volatile flavor compounds were detected in 6 commercial liquid smokes, and these compounds were composed mainly of 12 aldehydes, 60 ketones, 7 alcohols, 14 acids, 20 esters, 24 aromatic compounds, 7 furans and 12 miscellaneous compounds. Ketones $(806.6-7,573.9\mu g/mL)$ and aromatic compounds $(282.6-7,896.3 \mu g/mL)$ were more abundant than others. The PAHs known as carcinogen have not been detected in this study. The acids $(422.9-4,903.1\mu g/mL)$ was identified in relatively high concentration compared to other groups. Phenol and its derivatives among aromatic compounds were in relatively high concentration. Especially, the phenol and its derivatives including o-cresol, guaiacol, 4-ethylguaiacol and syringol were in higher concentration.

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Phenol Treatment Plasma Reactor of Dielectric Barrier Discharge (유전체 장벽 방전 플라즈마 반응기를 이용한 페놀 처리)

  • Park, Young-Seek
    • Journal of Environmental Science International
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    • v.21 no.4
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    • pp.479-488
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    • 2012
  • A Dielectric barrier discharge (DBD) plasma is shown in the present investigation to be effective of phenol degradation in the aqueous solutions in batch reactor with continuous air bubbling. Removal of phenol and effects of various parameters on the removal efficiency in the aqueous solution with high-voltage streamer discharge plasma are studied. The effect of 1st voltage (80 ~ 220 V), air flow rate (3 ~ 7 L/min), pH (3 ~ 11), electric conductivity of solution (4.16 ${\mu}S$/cm, deionized water) ~ 16.57 mS/cm (addition of NaCl 10 g/L) and initial phenol concentration (2.5 ~ 20.0 mg/L) were investigated. The observed results showed that phenol degradation was higher in the basic solution than that of the acidic. The optimum values on the 1st voltage and air flow rate for phenol degradation were 140 V and 6 L/min, respectively. It was considered that absorbance variation of $UV_{254}$ of phenol solution can be use as an indirect indicator of change of the non-biodegradable organic compounds within the treated phenol solution. Electric conductivity was not influenced the phenol degradation. To obtain the removal efficiency of phenol and COD of phenol over 97 % (initial phenol concentration, 10.0 mg/L), 80 min and 120 min were need, respectively. Phenol and COD degradation showed a pseudo-first order kinetics.

Synthesis and Analgesic-antiinflammatory Activity of Cinmetacin Derivatives (Cinmetacin유도체의 합성과 진통항염활성)

  • 임채욱;이종민;유재학;이현수;임철부
    • YAKHAK HOEJI
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    • v.45 no.1
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    • pp.1-6
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    • 2001
  • Nine cinmetacin derivatives as potential nonsteroidal analgesic and antiinflammatory compounds were prepared and their analgesic-antiinflammatory activity was compared with cinmetacin. Salicylic acid and phenols were reacted with dicyclohexyl carbodiimide (DCC) to give phenol salicylates (1-4). Cinmetacin was treated with DCC and phenol derivatives to yield cinmetacin esters (5-13). Compounds (5, 7, 8, 10, 12, and 13) showed stronger analgesic activity than cinmetacin, but only compound (5) showed comparable antiinflammatory activity to cinmetacin.

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The Biodegradation of Mixtures of Benzene,Phenol,and Toluene by Mixed and Monoculture of Bacteria (단일배양 및 혼합배양에 의한 Benzene, Phenol 및 Toluene 혼합물의 생분해)

  • Lee, Chang-Ho;Oh, Hee-Mock;Kwon, Tae-Jong;Kwon, Gi-Seok;Kim, Seong-Bin;Kho, Yung-Hee;Yoon, Byung-Dae
    • Microbiology and Biotechnology Letters
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    • v.22 no.6
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    • pp.685-691
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    • 1994
  • The biodegradation of aromatic compounds by mixed and monoculture was investigated in an artificial wastewater containing 500 mg/l of benzene(B), phenol(P), and toluene(T) in various combinations. None of three strains utilized P-xylene(X) as a carbon source, but they grew well on p-xylene in mixtures with benzene and toluene. In the mixed culture on mixed substrate, the length of lag phase was different depending on the nature of mixture. Cell growths of Flavobac- terium sp. BEN2 and Acinetobacter sp. GEM63 were inhibited in the presence of a 500 mg/l of phenol. When the mixed culture of three strains was cultured in a bench-scale reactor containing artificial wastewater, each of benzene, phenol, and toluene was not detected at 30 hrs, 50 hrs, and 12 hrs after incubation in the treatment. The removal rates of COD$_{t}$(total COD) and COD$_{s}$,(soluble COD) of upper phase after centrifugation during early 50 hrs were ca. 80% and ca. 93.8%, respectively.

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Analysis of Volatile Compounds in Bamboo and Wood Crude Vinegars by the Solid-Phase Microextracion(SPME) Method (SPME법에 의한 죽초 및 목초액 중의 휘발성 성분 분석)

  • Mun, Sung-Phil;Ku, Chang-Sub
    • Journal of the Korean Wood Science and Technology
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    • v.30 no.4
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    • pp.80-86
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    • 2002
  • Volatile compounds in three different kinds of crude vinegars obtained from oak (Quercus serrata), bamboo (phyllostachys) and pine (Pinus densiflora) species were analyzed by the solid-phase microextraction (SPME) method. A total of 264 peaks were detected on the chromatograms obtained from the polar (CBP 20) and the nonpolar (CBP 1) columns, which were used for analyzing the volatile compounds in these vinegars. The major volatile compounds identified by using the polar column were 2-butanone, acetic acid, guaiacol, phenol, cresols, 4-ethyl guaiacol, 4-ethyl phenol, and syringol. Using the nonpolar column, seven compounds could be identified: 1,2-dimethoxybenzyl alcohol, 1-hydroxy-2-butanone, 1-(2-furanyl)-1-propane, ethisolide, furfuryl acetate, 1,2-dimethoxybenzene, phenyl acetate. The volatile compounds were classified into five groups: phenols, neutral compounds, organic acids, esters and others. The phenols were the main component and comprised 49~65% of the volatile compounds of these vinegars. In the case of bamboo vinegar, the proportion of the phenols in the volatile compounds was lower than that of the two wood vinegars. However, the proportions of the neutral compounds and the organic acids were higher than those of the wood vinegars. Therefore, it seems that these differences of the proportions of the volatile compounds would make a certain difference of a smoke flavor between the bamboo vinegar and the wood vinegars.

A Study on Removal of Phenol and Its By-Product by Ozone, Ozone/Hydrogen Peroxide and Ozone/Granular Activated Carbon (오존, 오존/과산화수소와 오존/활성탄 처리에 의한 페놀 및 그 부산물의 제거에 관한 연구)

  • 배현주;김영규;정문호
    • Journal of Environmental Health Sciences
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    • v.23 no.3
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    • pp.121-129
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    • 1997
  • This study was performed to delineate the removal phenol in solutions using of ozone, ozone/$H_2O_2$ and ozone/GAC. The disinfection by-product of phenol by ozonation, hydroquinone, was analyzed and it's control process was investigated. The followings are the conclusions that were derived from this study. 1. The removal efficiency of phenol by ozonation was 58.37%, 48.34%, 42.15%, and 35.41% which the initial concentration of phenol was 5 mg/l, 10 mg/l, 15 mg/l, and 20 mg/l, respectively. 2. The removal efficiency of phenol by ozonation was 42.95% at pH 4.0 and 69.39% at pH 10, respectively. The removal efficiencies were gradually increased, as pH values were increased. 3. With the ozone/$H_2O_2$ combined system, the removal efficiency of phenol was 72.87%. It showed a more complete degradation of phenol with ozone/$H_2O_2$ compared with ozone alone. 4. When ozonation was followed by filtration on GAC, phenol was completely removed. 5. Oxidation, if carried to completion, truly destroys the organic compounds, converting them to carbon dioxide. Unless reaction completely processed, disinfection by-products would be produced. To remove them, ozone/GAC treatment was used. The results showed that disinfection by-product of phenol by ozonation, hydroquinone, was completely removed. These results suggested that ozone/GAC should also be an appropriate way to remove phenol and its by-product.

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Isolation and Characterization of a Phenol-degrading Strain, Klebsiella pneumoniae (Phenol 분해균주 Klebsiella pneumoniae의 분리 및 특성)

  • 노종수;이헌모
    • Journal of environmental and Sanitary engineering
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    • v.15 no.1
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    • pp.34-38
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    • 2000
  • In the screening of phenol-degrading bacteria, a strain showing good growth in media containing phenol was isolated by using enrichment culture from various sample and identified as genus Klebsiella pneumoniae. The optimal temperature and pH for cell growth of Klebsiella pneumoniae was $35^{\circ}C$ and 8.0, respectively. When phenol was added to the minimal media as a sole source of carbon and energy, the concentration of maximum and optimum for cell growth was 1,200ppm and 1,000ppm, respectively. It was observed that Klebsiella pneumoniae was able to degrade 98% of phenol (1,000ppm) after 40hr in culture. The isolated could utilize various kinds of aromatic compounds and showed good growth in presence of phenol, m-cresol and 3-methyl catechol.

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