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International Journal of Medicinal Mushrooms

Publicou 12 edições por ano

ISSN Imprimir: 1521-9437

ISSN On-line: 1940-4344

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00066 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.34 SJR: 0.274 SNIP: 0.41 CiteScore™:: 2.8 H-Index: 37

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Mushrooms as a Source of Polyprenols

Volume 7, Edição 3, 2005, pp. 425-426
DOI: 10.1615/IntJMedMushrooms.v7.i3.670
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RESUMO

Accumulation of long chain polyprenols in leaves of plants was first described 50 years ago. Polyprenols were found in a number of angiosperm plants and conifer trees (Chojnacki and Vogtman, 1984).These compounds have a broad spectrum of physiological activity. Dolichols are partially hydrogenated polyprenols. The physiological activity of dolichols is several times higher than polyprenol activity (Grigor’eva and Moiseenkov, 1989). Dolichols occur in mammalian tissues and yeast, and they are also found in some plants (Mankowski et al., 1976; Kukina et al., 1991). Bactoprenols were found in bacteria, but the data about "fungoprenols" are absent in scientific literature.
Polyprenols were isolated from the following mushrooms: Armillaria mellea (VahkFr.) P. Kumm., Fomes fomentarius (L.:Fr.) J.J. Kickx, Tricholoma populinum J. Lge, Lycoperdon perlatum Pers.:Pers., and Suillus luteus (L.:Fr.) S.F. Gray. The samples of fresh mushrooms were extracted by a mixture of hexane and isopropanole in a ratio of 1:1. Adding water to the extract formed two layers of liquid. The hexane included the nonpolar substances and alcohol included a number of polar components. These fractions may be investigated separately. Samples of extracts were investigated by high-performance liquid chromatography with the ester of tocopherol as an internal standard. HPLC was performed as described previously (Mankowski et al., 1976) for plantaprenols from sea buckthorn leaves. The yields of extractive substances from these samples and content of polyprenols in extracts are presented in Table 1.
The distribution of polyprenols in free and esterified forms is summarized in Table 2. The accurate analysis of chromatographic data led to conclusions about the differences of polyprenols. Armillaria mellea, Lycoperdon perlatum, and Tricholoma populinum contain predominantly acetylated polyprenols. Polyprenols from Suillus luteus were investigated after saponification because the polyprenols were esterified with fatty acids. S. luteus probably contain small amounts of dolichols. The polyprenols in Fomes fomentarius and S. luteus are present in minute amounts.
According to this reseach, mushrooms are being considered as new sources of polyprenols.

CITADO POR
  1. Wong Jin Yi, Chye Fook Yee, Antioxidant properties of selected tropical wild edible mushrooms, Journal of Food Composition and Analysis, 22, 4, 2009. Crossref

  2. Badalyan Susanna, Medicinal Aspects of Edible Ectomycorrhizal Mushrooms, in Edible Ectomycorrhizal Mushrooms, 34, 2012. Crossref

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