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International Journal of Medicinal Mushrooms
Fator do impacto: 1.423 FI de cinco anos: 1.525 SJR: 0.433 SNIP: 0.661 CiteScore™: 1.38

ISSN Imprimir: 1521-9437
ISSN On-line: 1940-4344

Volumes:
Volume 21, 2019 Volume 20, 2018 Volume 19, 2017 Volume 18, 2016 Volume 17, 2015 Volume 16, 2014 Volume 15, 2013 Volume 14, 2012 Volume 13, 2011 Volume 12, 2010 Volume 11, 2009 Volume 10, 2008 Volume 9, 2007 Volume 8, 2006 Volume 7, 2005 Volume 6, 2004 Volume 5, 2003 Volume 4, 2002 Volume 3, 2001 Volume 2, 2000 Volume 1, 1999

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.v7.i3.710
pages 430-431

Culinary-Medicinal Mushrooms Affecting the Development of Adipose Tissue Development in Rats and Depending on the Growth Conditions for Their β-Glucan Production

H. Makela
Center for Applied Mycology, Kinnulantie 1, FIN-82300 Raakkyla; and Department of Biology, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland
R. Linnakoski
Center for Applied Mycology, Kinnulantie 1, FIN-82300 Raakkyla; and Department of Biology, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland
H. Puhakka
Center for Applied Mycology, Kinnulantie 1, FIN-82300 Raakkyla; and Department of Biology, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland
P. Nieminen
Department of Biology, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland
A.-M. Mustonen
Department of Biology, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland
M. Vornanen
Department of Biology, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland
J. Ahlholm
Center for Applied Mycology, Kinnulantie 1, FIN-82300 Raakkyla, Finland
M. Kirsi
Department of Biology, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland
A. Pappinen
Center for Applied Mycology, Kinnulantie 1, FIN-82300 Raakkyla; and Faculty of Forestry, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland

RESUMO

Two different studies have been conducted, and the results are compiled herein. First, genetically homogenous rats were used for investigation of the effect of the most commonly cultivated mushrooms on their plasma lipids and adipose tissue localization. Therefore, the rats were randomly divided into five groups of six individuals and subjected to commercial rodent fodder or the same fodder supplemented with 5% (DW/ DW) oat flower, shiitake (Lentinus edodes (Berk.) Singer), button mushroom (Agaricus bisporus (J.Lge) Imbach), or blue oyster mushroom (Pleurotus ostreatus (Jacq.:Fr.) P. Kumm.) with free access to water and dry food for 8 weeks. The plasma LDL, HDL, and total cholesterol levels were measured with the Technicon RA-XT analyzer. Distribution of adipose tissue was determined. All non-intramuscular adipose tissue was dissected and weighted, and subcuta-neal, intraperitoneal, mesentery, and interscapular adipose tissue measured. The group fed with shiitake had the lowest plasma lipid levels. Shiitake and blue oyster mushroom had the most profound affects on the accumulation and localization of adipose tissue. Possible explanations are discussed.
In a second study, six Lentinus edodes and four winter mushroom (Flammulina velutipes (W.Curt.:Fr.) Singer) strains, varying by their optimal substrate preference, were cultivated in Petri dishes during the vegetative phase in order to investigate the effect of pH and substrate composition on their mycelia performance and β-glucan production. Substrate was either the most commonly used MYPA with malt and yeast extract, or peptone or MYPA with CaSO4. The vegetative growth speed was monitored by measuring the daily radial growth. After mycelia reached the dish margin, the pH of the substrate was measured, the biomass of mycelia weighted, and β-glucan content analyzed. Marked statistical differences were discovered between strains and substrates in growth speed, biomass production capabilities, post-growth substrate pH, and β-glucan content. According to these findings, it is possible to modify the functional quality of Lentinus edodes and Flammulina velutipes.


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