Enhanced Glucosamine Production with Actinomucor elegans Based on Stimulating Factor of Methanol

Li, Piwu; Su, Jing; Liang, Rongrong; Wu, Xiangkun

doi:10.1007/s12088-014-0485-5

Cited by 7 publications

(5 citation statements)

References 23 publications

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“…Actinomucor species are found in dung, soil, food, and human sources. A. elegans is considered a source of glycine aminopeptidase and glucosamine (Wang et al, 2014).…”

Section: Differential Responses Of Soil Fungi To Management Systemsmentioning

confidence: 99%

How Tillage and Crop Rotation Change the Distribution Pattern of Fungi

Orrù¹,

Canfora²,

Trinchera³

et al. 2021

Front. Microbiol.

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Massive sequencing of fungal communities showed that climatic factors, followed by edaphic and spatial variables, are feasible predictors of fungal richness and community composition. This study, based on a long-term field experiment with tillage and no-tillage management since 1995 and with a crop rotation introduced in 2009, confirmed that tillage practices shape soil properties and impact soil fungal communities. Results highlighted higher biodiversity of saprotrophic fungi in soil sites with low disturbance and an inverse correlation between the biodiversity of ectomycorrhizal and saprotrophic fungi. We speculated how their mutual exclusion could be due to a substrate-mediated niche partitioning or by space segregation. Moreover, where the soil was ploughed, the species were evenly distributed. There was higher spatial variability in the absence of ploughing, with fungal taxa distributed according to a small-scale pattern, corresponding to micro-niches that probably remained undisturbed and heterogeneously distributed. Many differentially represented OTUs in all the conditions investigated were unidentified species or OTUs matching at high taxa level (i.e., phylum, class, order). Among the fungi with key roles in all the investigated conditions, there were several yeast species known to have pronounced endemism in soil and are also largely unidentified. In addition to yeasts, other fungal species emerged as either indicator of a kind of management or as strongly associated with a specific condition. Plant residues played a substantial role in defining the assortment of species.

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“…Actinomucor species are found in dung, soil, food, and human sources. A. elegans is considered a source of glycine aminopeptidase and glucosamine (Wang et al, 2014).…”

Section: Differential Responses Of Soil Fungi To Management Systemsmentioning

confidence: 99%

How Tillage and Crop Rotation Change the Distribution Pattern of Fungi

Orrù¹,

Canfora²,

Trinchera³

et al. 2021

Front. Microbiol.

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“…Some of them are commonly used for producing popular fermented soybean foods including Sufu and Chao [ 8 ]. In addition, A. elegans is also considered a good source of glycine aminopeptidase and glucosamine [ 9 10 ]. A. elegans var.…”

mentioning

confidence: 99%

Phylogenetic Status of Two Undescribed Zygomycete Species from Korea:Actinomucor elegansandMucor minutus

et al. 2017

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During a survey of fungal diversity of the order Mucorales, three zygomycete isolates, CNUFC-YR113-1, CNUFC-KNU16-7, and CNUFC-BS1-1 were isolated from freshwater and soil samples in Korea. The strains were analyzed both morphologically and phylogenetically based on internal transcribed spacer and 28S rDNA gene sequences. Based on their morphology and phylogeny, the CNUFC-YR113-1 and CNUFC-KNU16-7 isolates were identified as Actinomucor elegans, and CNUFC-BS1-1 was identified as Mucor minutus. To the best of our knowledge, the species A. elegans and M. minutus, belonging to an undiscovered taxon, have not been previously described in Korea.

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“…Besides that, the crustaceans-derived GlcN is not suitable for vegetarians and people who are allergic to crustaceans. Hence, more efforts have been concentrated on the research of GlcN production from fungal sources (Peng & Wu, 2020;Wang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Enhanced glucosamine production from Aspergillus oryzae NCH-42 via acidic stress under submerged fermentation

Chew

Lin

et al. 2021

CyTA - Journal of Food

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Glucosamine (GlcN) has been widely used to treat osteoarthritis. However, GlcN derived from crustacean shells has several drawbacks, and it is not vegan-friendly. Here, we produced GlcN from the biomass of Aspergillus oryzae NCH-42 and investigated the effects of environmental factors (e.g. carbon and nitrogen sources, temperature, and pH) on the GlcN production of the fungal biomass. The acidic stress resulted in significantly higher GlcN content in the cell wall of A. oryzae NCH-42. Moreover, the SEM examination revealed that the mycelial structure grown at pH 2.5 was thick and sturdy, compared to that at neutral pH conditions. The final yield of GlcN could be enhanced by up to 7.75-fold by cultivating at modified PDB with an initial pH of 2.5 at 30°C for 4 days. In this study, the GlcN content of A. oryzae biomass could reach up to 0.31 g/g biomass, indicating its high potentiality for GlcN production. Aumento de la producción de glucosamina a partir de Aspergillus oryzae NCH-42 mediante estrés ácido en fermentación sumergidaLa glucosamina (GlcN) se ha utilizado ampliamente para tratar la artrosis. Sin embargo, aquella que deriva de los caparazones de crustáceos presenta varios inconvenientes y no es apta para veganos. En el presente estudio produjimos GlcN a partir de la biomasa de Aspergillus oryzae NCH-42 e investigamos los efectos de los factores ambientales (por ejemplo, las fuentes de carbono y nitrógeno, la temperatura y el pH) en la producción de GlcN de la biomasa fúngica. El estrés ácido dio lugar a un contenido de GlcN significativamente mayor en la pared celular de A. oryzae NCH-42. Además, el examen SEM permitió comprobar que la estructura micelial cultivada a pH 2.5 era gruesa y robusta, en comparación con la cultivada en condiciones de pH neutro. El rendimiento final de GlcN se pudo multiplicar hasta por 7.75 al cultivarla en PDB (caldo de dextrosa de papa [patata]) modificado con un pH inicial de 2.5 a 30°C durante 4 días. En este estudio, el contenido de GlcN de la biomasa de A. oryzae alcanzó hasta 0.31 g/g de biomasa, lo que indica su alta potencialidad para producir GlcN.

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Enhanced Glucosamine Production with Actinomucor elegans Based on Stimulating Factor of Methanol

Cited by 7 publications

References 23 publications

How Tillage and Crop Rotation Change the Distribution Pattern of Fungi

How Tillage and Crop Rotation Change the Distribution Pattern of Fungi

Phylogenetic Status of Two Undescribed Zygomycete Species from Korea:Actinomucor elegansandMucor minutus

Enhanced glucosamine production from Aspergillus oryzae NCH-42 via acidic stress under submerged fermentation

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