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Home Archive 2017 № 4 SYNTHESIS OF AROMA COMPOUNDS BY Pleurotus ostreatus (Jacq.:Fr.) Kumm. CULTURED ON VARIOUS SUBSTRATES E. N. Vlasenko, J. V. Stepnevskaya, O. V.
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ISSN 410-7751 (Print)
ISSN 2410-776X (on-line)

"Biotechnologia Acta" V. 10, No 2, 2017
https://doi.org/10.15407/biotech10.04.059
Р. 59-67, Bibliography 18, English
Universal Decimal Classification: 632.936:631.466

SYNTHESIS OF AROMA COMPOUNDS BY Pleurotus ostreatus (Jacq.:Fr.) Kumm. CULTURED ON VARIOUS SUBSTRATES

E. N. Vlasenko, J. V. Stepnevskaya, O. V. Kuznetsova

Kuznetsovakrainian State University of Chemical Technology, Dnipro, Ukraine

The aim of the study was to determine the intensity of synthesis of volatile aroma compounds by Pleurotus ostreatus (oyster mushroom) on sunflower husks and barley straw using sensory profile analysis and UV spectroscopy. The main cultural and morphological characteristics of the mycelial growth and development of fruiting bodies are determined: the period of mycelial development on the substrate, the time of primordial formation, the number of mushroom bunches per unit volume of substrate, the morphology of carpophores. Characteristic attributes of the aroma of dried fruiting bodies (mushroom, woody, sweet, herbaceous, fish, meat, floral, earthy, acidic, putrescent) are established and their aroma profiles are built. Sensory profile analysis of flavor of dried samples showed that the mushroom flavor of fungi cultivated on the sunflower husk is more pronounced than of those grown on barley straw. The light absorption maxima are recorded in the ranges 204–210 and 250–290 nm according to UV absorption spectra. Optimal conditions for extracting aromatics from dried fungi samples are the extraction time of 20–35 min at the boiling point of the solvent. Analysis of the UV spectra of fungal alcohol and hexane extracts showed that the intensity of the synthesis of volatile compounds is higher for strains cultivated on sunflower husks than for samples obtained on barley straw.

Key words: Pleurotus ostreatus, volatile aroma compounds, sensory profile analysis, UV spectroscopy.

© Palladin Institute of Biochemistry of National Academy of Sciences of Ukraine, 2017

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https://doi.org/10.15407/biotech10.04.059

 

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Home Archive 2017 № 4 SYNTHESIS OF AROMA COMPOUNDS BY Pleurotus ostreatus (Jacq.:Fr.) Kumm. CULTURED ON VARIOUS SUBSTRATES E. N. Vlasenko, J. V. Stepnevskaya, O. V.

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