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Fungal Biol

Title:		Enhancement of exopolysaccharide production from Ganoderma lucidum using a novel submerged volatile co-culture system
Author(s):		Asadi F; Barshan-Tashnizi M; Hatamian-Zarmi A; Davoodi-Dehaghani F; Ebrahimi-Hosseinzadeh B;
Address:		"Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. Electronic address: mbarshan@ut.ac.ir. Department of Biology, Faculty of Basic Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran"
Journal Title:		Fungal Biol
Year:		2021
Volume:		20201009
Issue:		1
Page Number:		25 - 31
DOI:		10.1016/j.funbio.2020.09.010
ISSN/ISBN:		1878-6146 (Print)
Abstract:		"Based on the impact of volatile organic compounds (VOCs) on secondary metabolite pathways, a novel submerged volatile co-culture system was constructed, and the effects of thirteen fungal and bacterial VOCs were investigated on Ganoderma lucidum exopolysaccharides production. The results demonstrated at least a 2.2-fold increase in exopolysaccharide (EPS) specific production yield in 6 days submerged volatile co-culture of G. lucidum with Pleurotus ostreatus. Therefore, P. ostreatus was selected as a variable culture, and the effects of agitation speed, inoculum size, initial pH, and co-culture volume on EPSs production were investigated using a Taguchi L(9) orthogonal array. Finally, the highest concentration of EPSs (3.35 +/- 0.22 g L(-1)) was obtained under optimized conditions; initial pH 5.0, inoculum size 10%, 150 rpm, and 3:1 volume ratio of variable culture to main culture"
Keywords:		Bacteria *Coculture Techniques Fermentation *Industrial Microbiology/methods *Pleurotus/physiology *Polysaccharides/biosynthesis *Reishi/growth & development/metabolism Glossy Ganoderma Quorum-sensing Taguchi orthogonal design Volatile compounds beta-gluc;
Notes:		"MedlineAsadi, Fatemeh Barshan-Tashnizi, Mohammad Hatamian-Zarmi, Ashrafalsadat Davoodi-Dehaghani, Fatemeh Ebrahimi-Hosseinzadeh, Bahman eng Research Support, Non-U.S. Gov't Netherlands 2020/12/16 Fungal Biol. 2021 Jan; 125(1):25-31. doi: 10.1016/j.funbio.2020.09.010. Epub 2020 Oct 9"