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标题：Evaluation of Biomass and Chitin Production of Morchella Mushrooms Grown on Starch-Based Substrates
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作者：Aikaterini Papadaki ; Panagiota Diamantopoulou ; Seraphim Papanikolaou 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2019
卷号：8
期号：7
页码：239-254
DOI：10.3390/foods8070239
出版社：MDPI Publishing
摘要：Morchella sp. is one of the most expensive mushrooms with a high nutritional profile. In this study, the polysaccharide content of Morchella species was investigated. Specifically, mycelium growth rate, biomass production, sclerotia formation, and glucosamine and total polysaccharides content of six Morchella species grown on a starch-based media were evaluated. Submerged fermentations in potato dextrose broth resulted in a glucosamine content of around 3.0%. In solid-state fermentations (SSF), using potato dextrose agar, a high linear growth rate (20.6 mm/day) was determined. Increased glucosamine and total polysaccharides content were observed after the formation of sclerotia. Biomass and glucosamine content were correlated, and the equations were used for the indirect estimation of biomass in SSF with agro-industrial starch-based materials. Wheat grains (WG), potato peels (PP), and a mixture of 1:1 of them (WG–PP) were evaluated as substrates. Results showed that the highest growth rate of 9.05 mm/day was determined on WG and the maximum biomass yield (407 mg/g) on WG–PP. The total polysaccharide content reached up to 18.4% of dried biomass in WG–PP. The results of the present study proved encouraging for the efficient bioconversion of potato and other starch-based agro-industrial waste streams to morel biomass and sclerotia eliciting nutritional and bioactive value.
关键词：Morchella ; morel mushrooms; bioprocess development; solid state fermentation; food processing; glucosamine; polysaccharides; bioactive compounds Morchella ; morel mushrooms ; bioprocess development ; solid state fermentation ; food processing ; glucosamine ; polysaccharides ; bioactive compounds