• 제목/요약/키워드: tannins

검색결과 233건 처리시간 0.025초

Traditional Unani uses with multiple pharmacological activities of aril of Myristica fragrans (Mace)

  • Sultana, Arshiya;Najeeya, Abdul G.F.;Anjum, Amera
    • 셀메드
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    • 제8권2호
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    • pp.6.1-6.7
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    • 2018
  • Myristica fragrans Houtt is commonly known as "nutmeg", it produces two spices: mace and nutmeg. Mace and nutmeg are strongly aromatic in nature and known as jowzabuwa and javetri/bisbasah respectively in the Unani system of medicine. M. fragrans was used as early as 700 BCE by Indian, however, ancient Greeks and Romans were not aware of it. Later Arab traders introduce M. fragrans into Europe followed by Portuguese and Dutch merchants. Mace is very useful medicine in the Unani system of medicine because of its therapeutic uses in salasal al-bawl (urinary incontinence), amrad-i-qalb (cardiac diseases), amrad-i-dimagh (central nervous system), zo'fe bah (sexual debility), amrad al-rahim (uterine diseases), and su-i-hazim (indigestion). The most important constituents of mace essential oil are ${\alpha}-pinene$, sabinene, myrcene, limonene, 1,8-cineole, terpinen-4-ol, myristicin, ${\gamma}-terpinene$, and safrole. The seed and mace extract of nutmeg contain quite high tannins, flavonoids, and terpenoids. Mace has pharmacological functions such as antibacterial and antifungal, anti-inflammatory, analgesic, antidiarrhea, antioxidant, chemoprotective, neuropharmacologic, and antidiabetic properties. To explore the correlation between the traditional uses and the same proven by recent researches, a comprehensive review is highlighted in this paper. Further, pharmacological activities which are not reported in classical texts are also discussed.

새로운 천연염료로서 수련 잎 추출색소의 염색성과 기능성(1): 면섬유 염색을 중심으로 (The Dyeing Properties and Functionality of Water Lily(Nymphaea tetragona) Leaves Extract as a New Natural Dye Resource(1): Dyeing of Cotton Fiber)

  • 여영미;유동일;신윤숙
    • 한국염색가공학회지
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    • 제28권4호
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    • pp.290-298
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    • 2016
  • In this study, the efficacy of water lily(Nymphaea tetragona) leaves as a new natural dye resource was investigated. For this purpose, the colorants from water lily leaves were extracted in methanol, evaporated, and powdered. Dyeing onto cotton fiber was carried out to study the effects of dyeing conditions, mordant type and mordanting method on dye uptake, color change, and colorfastness. FTIR analysis supported that hydrolyzable tannins and chrolophyll were contained in the extracted colorants. The colorants showed good affinity to cotton fiber showing Y Munsell color. Pre-mordanting method gave better results in terms of dye uptake than post-mordanting method. By mordanting, dyed fabrics exhibited various colors such as green, khaki, brownish yellow, dark brown, dark gray and so on. Colorfastness to washing and rubbing was relatively good showing 4-5 rating. The light fastness was improved 1-2 rating by Fe mordanting. The dyed cotton fabric showed antimicrobial activity.

대극과 식물로부터 분리한 천연폴리페놀의 멜라닌 생성 억제효과 (Inhibitory Effect of Some Natural Polyphenols Isolated from Euphorbiaceae Plants on Melanogenesis)

  • 김정아;최지영;손애량;박성희;허광화;이종구;오인석;김진준;장현욱;정시련;장태수;이승호
    • 생약학회지
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    • 제35권2호통권137호
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    • pp.157-163
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    • 2004
  • Twenty two polyphenols containing ten gallotannins, seven ellagitannins, two phenylpropanoids and three stilbenes isolated from the higher plants were tested inhibitory effects on melanogenesis in cultured B-16 mouse melanoma cell lines. Among the tested samples, 1-desgalloyleugeniin exhibited the most potent inhibitory effect on melanogenesis in cultured cell lines.

감 탄닌 추출물의 열 발색공정에 의한 면직물 염색 (Coloration of Cotton Fabrics with Tannins of Persimmon Extracts by Heating Process)

  • 정종석;박지선;김태경
    • 한국염색가공학회지
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    • 제20권3호
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    • pp.25-30
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    • 2008
  • In order to examine the availability of a heating process for persimmon dyeing, the cotton fabrics treated with various concentrations of persimmon extracts were heated at various temperatures and times. The raw and fermented persimmon extracts were used for the coloration. For both extracts, the color strength of fabrics was. increased with the increase of coloration temperature, time, and concentration of the extracts. Considering the practical aspects. and color strength, the temperature around $200^{\curc}C$ and the time longer than 60 minutes can be determined as the. optimum coloration conditions of persimmon extracts onto cotton fabrics. However, somewhat loss of strength by the hearing process seems to be inevitable. The color fastness to washing was excellent for both color change and staining showing a rating of 5.

대극 지상부의 페놀성 화합물 (Phenolic Compounds of Aerial Parts of Euphorbia pekinensis)

  • 안병태;;이상철;김재길;노재섭;이경순
    • 약학회지
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    • 제40권2호
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    • pp.170-176
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    • 1996
  • A chemical examination of the aerial parts of Euphorbia pekinensis $R_{UPRECHT}$. (Euphorbiaceae) has led to the isolation of seven hydrolyzable tannins and ten fl avonoid glycosides. The former ones have been identified as gallic acid, methylgallate, 3-O-galloyl shikimic acid, 1,3,4,6-tetra-O-galloyl-${\beta}-_D$-glucose, 1,2,3,4,6-penta-O-galloyl-${\beta}-_D$-glucose, corilagin, geraniin and the latter ones as isoquercitrin, quercitrin, astragalin, afzelin, prunin, rutin, kaempferol-3-O-rutinoside, quercetin-3-O-(2"-O-galloyl)-${\beta}-_D$-glucoside and quercetin-3-O-(2"-O-galloyl)-${\alpha}-_L$-rhamnoside on the basis of chemical and spectroscopic evidence.

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사람주나무잎의 페놀성 성부 (The Phenolic Components of Sapium japonicum)

  • 안영진;이승호;강신정;황방연;박웅양;안병태;노재섭;이경순
    • 약학회지
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    • 제40권2호
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    • pp.183-192
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    • 1996
  • A chemical examination of the phenolic compounds in the leaves of Sapium japonicum(Euphorbiacesae) has led to the isolation of eleven phenolic compounds, containing five hydrolysable tannins and six flavonoids. On the basis of chemical and spectroscopic evidences, the structures of these compounds were confirmed to be gallic acid(1), 5-O-caffeoyl quinic acid(2), 1-O-galloyl-3,6-(R)-HHDP-${\beta}-_D$-glucose(corilagin)(3), 1-O-galloyl-2,4(R)-DHHDP-${\beta}-_D$-glucose(furosin)(4), 1-O-galloyl-2,4-(R)-DHHDP-3,6-(R)-HHDP-${\beta}-_D$-glucose(geraniin )(5), astragalin(6), trifolin(7), afzelin(8), quercetin(9), isoquercitrin(10) and rutin(11). Among them geraniin was the main component.

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Antioxidant and free radical scavenging activities of Cleome rutidosperma

  • Bose, Anindya;Mondal, Sumanta;Gupta, Jayanta Kumar;Ghosh, Tirtha;Debbhuti, Debabrata;Si, Sudam
    • Advances in Traditional Medicine
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    • 제8권2호
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    • pp.135-145
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    • 2008
  • The study was aimed at evaluating the antioxidant and free radical scavenging activities of ethanolic extract and its fractions of Cleome rutidosperma. The antioxidant activity, reducing power, total phenolic content, total flavonoid content, superoxide anion scavenging activity, nitric oxide anion scavenging activity, in vitro antilipid peroxidation activity and in vitro non-enzymatic hemoglobin glycosylation were studied. The results obtained in the study indicate that Cleome rutidosperma is a potential source of natural antioxidant. All the parameters were found to be concentration dependent and increased with increasing amounts of sample. Flavonoids, phenolic compound like tannins, terpenoids may be responsible for the antioxidant activity of the plant. Variation of solubility parameters in various models may be attributed to non-linearity of activity of ethanol extract fractions models. Further investigation on the isolation and identification of antioxidant component(s) in the plant may lead to chemical entities with potential for clinical use.

Effective Application of CF11 Cellulose for Detection of Apple scar skin viroid in Apple

  • Chung, Bong-Nam;Cho, In-Sook;Cho, Jeom-Deog
    • The Plant Pathology Journal
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    • 제25권3호
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    • pp.291-293
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    • 2009
  • The low virus titer in woody plant tissues and the presence of inhibitor compounds such as polyphenols, tannins and polysaccharides are common difficulties that compromise purification of plant viroids from their woody hosts. A simple, reliable method of RNA isolation using CF11 cellulose column on a microcentrifuge tube scale for detecting Apple scar skin viroid (ASSVd) in apple was developed. Total RNA extracted from leaf, woody bark and the fruit skin was used for reverse transcription. RT-PCR products could be detected from RNA prepared from dormant woody bark, fruit skin and fresh leaves with both the CF11 cellulose column method and NucliSens extractor in February, August and November. Meanwhile, with the RNeasy kit RT-PCR, products were detected only in leaves and not from bark or fruit skin. The PCR product, about 330 base pairs, was analyzed by agarose gel electrophoresis. The CF11 cellulose column method was effective for detecting ASSVd. The method enabled the processing of a large numbers of samples of dormant woody bark, leaf and fruit skin of apple.

산수유 물추출물이 B16/F10 Melanoma세포주의 멜라닌 생성에 미치는 영향 (Water Extract from Cornis Fructus Regulates Melanogenesis in B16/F10 Melanoma)

  • 양현옥;최원형;전병훈;백승화;천현자
    • 동의생리병리학회지
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    • 제16권4호
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    • pp.818-822
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    • 2002
  • Fruits of Cornus Officinalis have been used as an astrinent, tonic and haemostatic in chinese medicine, contain a large amount of hydrolyzable tannins. The main aim of the present study was to examine the effect of Corni Fructus on melanogenesis. Cells were cultured in the presence of water extracts from Corni Fructus for 48 h, and there were estimated total melanin content as a final product and activity of tyrosinase, a key enzyme, in melanogenesis. Water extract from Corni Fructus increased the melanin content and tyrosinase activity in a dose-dependent mammer. Especially, It was observed that 100 μg/ml only water extract stimulated melanin secretion in B16/F10 melanoma cells by 130% at 48 h treatment and activity of tyrosinase increased by 160% in presence of same concentration.

줄풀을 활용한 견직물의 염색 (Dyeing of Silk Fabrics Using Zizania latifolia Turcz. Extract)

  • 이혜선;고은숙
    • 한국염색가공학회지
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    • 제30권2호
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    • pp.150-157
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    • 2018
  • The purpose of this study is to investigate the proper dyeing condition, color fastness and functionality of silk fabrics dyed with Zizania latifolia Turcz. FT-IR spectrum analysis suggests that colorants of Zizania latifolia Turcz. are tannins. The dyeing of the silk fabrics using Zizania latifolia Turcz. was very good even without pretreatment or mordanting treatment. Optimal dyeing conditions of silk fabrics were colorant concentration of 200%(o.w.f.), dyeing temperature of $100^{\circ}C$, dyeing time of 60 minutes and dyebath pH of 5.5. Color fastness of dyed silk fabrics to washing, rubbing, perspiration and light was 4~4-5, 5, 4~4-5(acidic), 4-5(alkaline) and 2 respectively. UV protection rate and deodorization rate of silk fabrics dyed with Zizania latifolia Turcz. were improved. Reduction rate(Staphyloccus aureus) of silk fabrics was excellent at 98.3%. As a result, it was confirmed that the Zizania latifolia Turcz. could be used as an eco-friendly functional natural dye.