• Title/Summary/Keyword: sitosterol

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Lipoxygenase Inhibitory Constituents from Indigofera oblongifolia

  • Sharif, Ahsan;Ahmed, Ejaz;Malik, Abdul;Riaz, Naheed;Afza, Nighat;Nawaz, Sarfraz Ahmad;Arshad, Muhammad;Shah, Muhammad Raza;Chaudhary, Muhammad Iqbal
    • Archives of Pharmacal Research
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    • v.28 no.7
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    • pp.761-764
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    • 2005
  • Indigin, alkylated xanthene (1) and indigoferic acid (2) have been isolated from the chloroform soluble fraction of Indigofera oblongifolia, along with $\beta$-sitosterol (3) and 3-hydroxybenzoic acid (4), which are reported for the first time from this species. Their structures were determined through spectroscopic techniques. Both the new compounds 1 and 2 showed significant activity against enzyme lipoxygenase, while 2 further showed moderate inhibition against BChE.

Chemical Constituents from the Aerial Parts of Abutilon theophrasti (어저귀 지상부의 화학성분)

  • Jin, Qinglong;Ko, Hae Ju;Chang, Young-Su;Woo, Eun-Rhan
    • Korean Journal of Pharmacognosy
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    • v.46 no.2
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    • pp.93-98
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    • 2015
  • Eleven compounds, lupenone (1), lupeol (2), stigmasterol (3), β-sitosterol (4), 24-methylene-3,4-seco-cycloart-4(28)-en-3-oic acid (5), 24-methylene-3,4-seco-cycloart-4(28)-en-3-methyl ester (6), (+)-(1S,4R)-7-hydroxycalamenene (7), hibicuslide C (8), isopropyl-${\beta}$-D-glucopyranoside (9), syringaresinol-4'-O-${\beta}$-D-glucoside (10), and rutin (11) were isolated from the aerial parts of Abutilon theophrasti. The chemical structures of compounds 1-11 were determined by the basis of physicochemical properties and spectroscopic methods such as 1D and 2D NMR. These compounds were isolated from this plant for the first time. In addition, compounds 6 and 9 were obtained for the first time as natural products not as synthetics.

Chemical Constituents of the Moss Hylocomium splendens

  • Kang, Shin-Jung;Jovel, Eduardo;Hong, Seong-Su;Hwang, Bang-Yeon;Liu, Patty;Lee, Meng-Hsin;Lee, Meng-Chun;Lee, Kyung-Soon;Towers, George Hugh Neil
    • Natural Product Sciences
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    • v.13 no.4
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    • pp.394-397
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    • 2007
  • Investigation of the chemical constituents of the dichloromethane extract from the moss Hylocomium splendens has led to the isolation of $5{\alpha},8{\alpha}$-epidioxy-24(S)-ethylcholesta-6,22-dien-$3{\beta}$-ol (1), diploptene (2), ${\beta}-sitosterol$ (3), and 1-hexacosanol (4). The chemical structures of 1 - 4 were established by spectroscopic methods including extensive 1D and 2D NMR analysis. This is the first isolation of compound 1 from the mosses, although it has been isolated from marine sponge.

Phytochemical Constituents of Saussurea nutans Nakai (당분취의 식물화학적 성분연구)

  • Choi, Sang-Zin;Min, Yong-Deuk;Lee, Sung-Ok;Yang, Min-Cheol;Nam, Jung-Hwan;Lee, Kyu-Ha;Jang, Ki-Uk;Lee, Jong-Hwa;Lee, Kang-Ro
    • Korean Journal of Pharmacognosy
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    • v.35 no.1 s.136
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    • pp.35-40
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    • 2004
  • Seven terpenoids, trans-phytol (1), ${\alpha}-spinasterol$ (2),${\beta}-sitosterol$ (3), oleanolic acid (4), traxasterol (5), ${\alpha}-spinasterol\;3-O-{\beta}-D-glucopyranoside$ (8), ${\beta}-spinasterol\;3-O-{\beta}-D-glucopyranoside$ (9), and three glycerides, 3-O-(9Z, 12Z, 15Z-octadecatrienoyl) glycerol (6), 3-O-(9Z, 12Z-octadecadienoyl) glycerol (7), 1, 2-O-(9Z, 12Z, 15Z-dioctadecatrienoyl)-3-O-${\beta}$- D-galactopyranosyl glycerol (10) were isolated from n-hexane fraction of the aerial parts of Saussurea nutans which was used as Korean traditional medicine to σeat rheumatic arthritis and dysmenorrhea. Their structures were established by chemical and spectroscopic methods.

Stability and Formation of the Liposome with Phospholipid Base (Phospholipid의 Gelation에 의한 Liposome 형성과 안정성)

  • Kim, In-Young;Ji, Hong-Keun;Hong, Chang-Yong;Kang, Sam-Woo
    • Journal of the Korean Applied Science and Technology
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    • v.13 no.1
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    • pp.11-19
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    • 1996
  • The liposomes have been developed in many drugs and cosmetics fields. The liposomes prepared with main compounds of the intercellular lipids and lecithin. Amphiphile nonionic surfactants used for (PEG) n-sitosterol(n=5), diethanolamine cetylphosphate. The effect of gelation for liposomes have been on swelling reaction which have been mixed phospholipid with polyol-group at the high temperature. There were very good encapsulated properties of the active ingredients whether hydrophilic-group(magnesium ascorbyl phosphate, allantoin, sodium hyaluronate) and hydrophobic-group(vitamin-E acetate, vitamin-A palmitate). Optimum condition of liposomes were passed five times in the microfluidizer(700bar), wetting reaction temperature was at $95{\pm}5^{\circ}C$ for a hours. Particle size distribution of the vesicles should be within range 50-560nm(mean 200nm). The stability of liposomes for the course of time was stabilized for six months at $45^{\circ}C$. Application of the cosmetic was prepared moisturizing cream with liposomes of the phospholipid base.

Phytochemical constituents from the aerial parts of Salvia plebeia

  • Paje, Leo Adrianne;Lee, Hak-Dong;Choi, Jungwon;Kim, Juree;Kim, Ki Hyun;Yu, A Ram;Bae, Min-Jung;Lee, Sanghyun
    • Journal of Applied Biological Chemistry
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    • v.64 no.4
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    • pp.391-397
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    • 2021
  • Four compounds were isolated from Salvia plebeia aerial parts. Silica gel open column chromatography with a gradient elution system was used to isolate and purify these compounds. Nuclear magnetic resonance spectroscopy and mass spectroscopy were used for structural elucidation and identification, while electronic circular dichroism was used to confirm the absolute configuration. The structures were determined to be 𝛽-sitosterol (1), (-)-1S,5S,8S,10R-1-acetoxy-8-hydroxy-2-oxoeudesman-3,7(11)-dien-8,12-olide (2), ursolic acid (3), and N-methylhydroxylamine (4). Compounds 2 and 4 were isolated for the first time from this plant. Compound 2 was quantitatively analyzed via HPLC/UV. The results showed that the methanol extract of S. plebeia had a higher content of compound 2 (1.20 mg/g) than the ethanol extract (0.55 mg/g). This study could be used as a preliminary step in conducting HPLC/UV analysis of sesquiterpenoids in S. plebeia extract to assess their bioavailability and potency.

A Study on the Function and Role of Morinda citrifolia L. (Noni) (노니의 기능 및 역할에 관한 연구)

  • Hwang, Hyo-Jeong;Shin, Kyung-Ok;Han, Kyoung-Sik
    • The Korean Journal of Food And Nutrition
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    • v.32 no.4
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    • pp.275-283
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    • 2019
  • This study was carried out to investigate the various roles and effects of Morinda citrifolia L.(noni) on the human body and to utilize the findings obtained for future disease related research on food and nutrition. Morinda citrifolia L. has been used in folk medicine by Polynesians for over 2,000 years and is reported to have a broad range of therapeutic effects. Noni is an alkaloid system such as proxeronine, scopoletin, octanoic acid, terpenoids, alkaloids, anthraquinones, nordamnacanthal, morindone, rubiadin, b-sitosterol, flavone glycosides, linoleic acid, acubin, L-asperuloside, caproic acid, caprylic acid, ursolic acid, rutin. Noni's side effects have been reported to affect anti-inflammatory, analgesics, LDL antioxidant, anti-tumor, antifungal, antibiotic, antiviral, antiparasitic and immunosuppressive effects. In particular, noni's efficacy is considered to be important for the prevention of diseases by inhibiting active oxygen, which is a direct cause of oxidative stress, through various metabolites through 'xeronine system'. Noni's functions and effects that have been examined in this study include anti-inflammation, pain relief, antioxidant, anticancer, hepatocyte protection among others. Therefore, noni's extracts are considered highly useful for diverse scientific and nutritional health functional foods.

GC-MS analysis of Salicornia herbacea L. extracts with trimethylsilyl derivatization (Trimethylsilyl 유도체화 방법을 적용한 함초 추출물의 GC-MS 분석)

  • Kyoung-In Lee;Geun-Jik Lee;Young-Seung Yoon
    • Journal of Marine Bioscience and Biotechnology
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    • v.15 no.2
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    • pp.96-102
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    • 2023
  • Salicornia herbacea, a noted halophyte, has been widely researched for its diverse physiological activities. The continuous exploration of its compounds is essential. This study employed gas chromatography (GC) coupled with mass spectrometry (MS) for qualitative analysis. This involved pretreatment including trimethylsilyl (TMS) derivatization of the S. herbacea extract, facilitating its GC analysis. Five compounds, including various fatty acids and β-sitosterol, were identified by direct analysis of the methanol extract of S. herbacea without pretreatment by GC-MS. Conversely, the analysis of the TMS-derivatized extract revealed 28 distinct peaks. Quantitative analysis further indicated that the predominant compounds in the S. herbacea extract were sugars and sugar derivatives, notably glucose, fructose, and glucitol. The collective concentration of these sugars and its derivatives amounted to 116.45 mg/g, representing 11.6% of the dry weight of the raw S. herbacea. Following sugars and their derivatives, fatty acids constituted the next most abundant group of compounds. However, the presence of amino acids and organic acids was relatively low.

Effect of Korean Effective Microorganisms and Seafood Amino Acid Fertilizer on the Root Quality of Panax ginseng (해양부산물 아미노산액비 및 유용미생물시용이 인삼의 품질에 미치는 영향)

  • Ann, Seoung-Won
    • Journal of Environmental Science International
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    • v.21 no.8
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    • pp.1023-1030
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    • 2012
  • Contents of ginsenosides 7 subordinations of two-year ginseng (fresh ginseng) is 1.27% and three-year ginseng is 2.09%, so the three-year ginseng root increased 64.9% compared to the two-year root. Compared with the comparison group, ginsenosides component content of KEM+SAF-applied group increased 24% in case of the two-year root and 20% in case of the three-year root. In vitamin C content, two-year root showed 59.4% higher and three-year root showed 37.7% higher in KEM+SAF applied group compared with the comparison group. In case of vitamin E, the two-year root indicated 5.6% higher and three-year root indicated 1.5% higher in KEM+SAF applied group compared with the comparison group, but there is no significant difference. In phytosterol three components (campesterol, stigmasterol, sitosterol), two-year root showed 25.3, 3.6, 14.1% higher for each, and three-year root showed 23.6, 6.8, 12.9% higher in KEM+SAF applied group and 14.4% was higher on average. In DPPH, two-year root indicated 34.4% higher and three-year root indicated 42.4% higher in KEM+SAF applied group compared to the comparison group. To sum up the results, KEM+SAF applied group showed (1)22% ginsenosides components content, (2)48.6% vitamin C content, (3)3.6% vitamin E content, (4)14.4% phytosterol content, (5)38.4% DPPH higher averagely compared to the comparison group.

Evaluation of Bioactive Compounds Contents and Biological Activities of Okra Seeds Oils (오크라 씨 기름의 기능성 성분 함량 및 생리활성 평가)

  • Seo, Dongyeon;Jeon, Ahyeong;Shin, Eui-Cheol;Lee, Junsoo;Hwang, In Guk;Kim, Younghwa
    • Journal of the Korean Society of Food Culture
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    • v.35 no.4
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    • pp.392-399
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    • 2020
  • This study examined the contents of bioactive compounds and the biological activity of okra seed oil. Okra seed oil consisted mainly of linoleic acid (44.2%). The content of total phytosterols was 2.180 mg/g oil, with β-sitosterol being the highest (1.756 mg/g oil). The vitamin E content was 1.278 mg/g oil; the content of α-tocopherol was higher than γ-tocopherol. The total polyphenol and flavonoid contents were 2.463 mg gallic acid equivalent/g and 1.602 mg cathechin equivalent/g, respectively. The 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid and α-α-diphenyl-β-picrylhydrazyl free radical scavenging activities were 15.297% and 22.265%, respectively, and the reducing power was 4.524 mg gallic acid equivalent/g. The okra seed oil inhibited 77.692% of the α-glucosidase activity. The present study showed that okra seed oil had a considerable amount of phytochemicals and exhibited biological activity. These results suggest that okra seed oil is a potential natural therapeutic for the management of metabolic syndromes.