Improvement in the productivity of xylooligosaccharides from waste medium after mushroom cultivation by hydrothermal treatment with suitable pretreatment

Sato, Nobuaki; Shinji, Kazunori; Mizuno, Masahiro; Nozaki, Kouichi; Suzuki, Mizue; Makishima, Satoshi; Shiroishi, Masahiro; Onoda, Takeru; Takahashi, Fumihiro; Kanda, Takahisa; Amano, Yoshihiko

doi:10.1016/j.biortech.2010.03.032

Cited by 32 publications

(8 citation statements)

References 16 publications

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“…The MSC may also be a source of valuable substances. During the hydrothermal conversion of MSC rich in nutrients (e.g., proteins), production of xylooligosaccharides may be possible [17,18]. Thanks to the high purity of the obtained product, this process has industrial potential [15].…”

Section: Parameter Unit Valuesmentioning

confidence: 99%

Proof-of-Concept of Spent Mushrooms Compost Torrefaction—Studying the Process Kinetics and the Influence of Temperature and Duration on the Calorific Value of the Produced Biocoal

2019

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Poland, being the 3rd largest and growing producer of mushrooms in the world, generates almost 25% of the total European production. The generation rate of waste mushroom spent compost (MSC) amounts to 5 kg per 1 kg of mushrooms produced. We proposed the MSC treatment via torrefaction for the production of solid fuel—biocoal. In this research, we examined the MSC torrefaction kinetics using thermogravimetric analyses (TGA) and we tested the influence of torrefaction temperature within the range from 200 to 300 °C and treatment time lasting from 20 to 60 min on the resulting biocoal’s (fuel) properties. The estimated value of the torrefaction activation energy of MSC was 22.3 kJ mol−1. The highest calorific value = 17.9 MJ kg−1 d.m. was found for 280 °C (60 min torrefaction time). A significant (p < 0.05) influence of torrefaction temperature on HHV increase within the same group of torrefaction duration, i.e., 20, 40, or 60 min, was observed. The torrefaction duration significantly (p < 0.05) increased the HHV for 220 °C and decreased HHV for 300 °C. The highest mass yield (98.5%) was found for 220 °C (60 min), while the highest energy yield was found for 280 °C (60 min). In addition, estimations of the biocoal recirculation rate to maintain the heat self-sufficiency of MSC torrefaction were made. The net quantity of biocoal (torrefied MSC; 65.3% moisture content) and the 280 °C (60 min) torrefaction variant was used. The initial mass and energy balance showed that MSC torrefaction might be feasible and self-sufficient for heat when ~43.6% of produced biocoal is recirculated to supply the heat for torrefaction. Thus, we have shown a concept for an alternative utilization of abundant biowaste (MSC). This research provides a basis for alternative use of an abundant biowaste and can help charting improved, sustainable mushroom production.

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Section: Parameter Unit Valuesmentioning

confidence: 99%

Proof-of-Concept of Spent Mushrooms Compost Torrefaction—Studying the Process Kinetics and the Influence of Temperature and Duration on the Calorific Value of the Produced Biocoal

2019

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“…Recently we reported that corn xylan (CX) isolated in high yield from milled corncob by hydrothermal treatment is a mixture of arabinoglucuronoxylan and its oligosaccharides with the degree of polymerization (DP) ranging from 2 to more than 20. 7) 8) This material was found to be partially acetylated and also partially esterified with FeA and CouA at Ara f residues 9) which reflects the native corn xylan structure.…”

Section: Introductionmentioning

confidence: 85%

Characterization of Acetylxylan Esterase from White-Rot Fungus <i>Irpex lacteus</i>

Koh

Imamura

Fujino³

et al. 2019

J. Appl. Glycosci.

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The carbohydrate esterase family 1 (CE1) in CAZy contains acetylxylan esterases (AXEs) and feruloyl esterases (FAEs). Here we cloned a gene coding for an AXE belonging to CE1 from Irpex lacteus (IlAXE1). IlAXE1 was heterologously expressed in Pichia pastoris, and the recombinant enzyme was purified and characterized. IlAXE1 hydrolyzed p-nitrophenyl acetate, α-naphthyl acetate and 4methylumbelliferyl acetate, however, it did not show any activity on ethyl ferulate and methyl pcoumarate. We also examined the activity on partially acetylated and feruloylated xylan extracted from corncob by hydrothermal reaction. Similarly, ferulic and p-coumaric acids were not liberated, and acetic acid was only detected in the reaction mixture. The results indicated that IlAXE1 is an acetylxylan esterase actually reacted to acetyl xylan. However, since IlAXE1 was unable to completely release acetic acid esterifying xylopyranosyl residues, it is assumed that acetyl groups exhibiting resistance to deacetylation by IlAXE1 are present in corn cob xylan.

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“…The enzymatic treatment of oat-spelt xylan by transformant xylanase and acetylxylan esterase significantly increased the production of xylo-oligosaccharides compared with the xylanase or acetylxylan esterase action alone but, there was no increase in the production of reducing sugars (Huang et al, 2010). The mushroom cultivation waste (WM) has also been used for the production of xylo-oligosaccharides (Sato et al, 2010). During this process, 2.3 kg of dry weight of the purified XOS has been obtained from 30 kg of wet weight of the WM (15% yield as dry basis weight).…”

Section: Xylo-oligosaccharidesmentioning

confidence: 98%

Biotechnological approaches for the production of prebiotics and their potential applications

Panesar

Kumari

Panesar

2012

Critical Reviews in Biotechnology

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Worldwide interest in prebiotics have been increasing extensively both as food ingredients and pharmacological supplements, since they have beneficial properties for human health. Prebiotics not only stimulate the growth of healthy bacteria such as bifidobacteria and lactobacilli in the gut but also increase the resistance towards pathogens. In addition to this, they also act as dietary fiber, an energy source for intestinal cells after converting to short-chain fatty acids, a stimulator of immune systems, sugar replacer etc. Moreover, due to heat resistant properties, they are able to maintain their intact form during the baking process and allow them to be incorporated into every day food products. Thus, they can be interesting and useful ingredients in the development of novel functional foods. This review provides comprehensive information about the different biotechnological techniques employed in the production of prebiotics and their potential applications in different areas.

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Improvement in the productivity of xylooligosaccharides from waste medium after mushroom cultivation by hydrothermal treatment with suitable pretreatment

Cited by 32 publications

References 16 publications

Proof-of-Concept of Spent Mushrooms Compost Torrefaction—Studying the Process Kinetics and the Influence of Temperature and Duration on the Calorific Value of the Produced Biocoal

Proof-of-Concept of Spent Mushrooms Compost Torrefaction—Studying the Process Kinetics and the Influence of Temperature and Duration on the Calorific Value of the Produced Biocoal

Characterization of Acetylxylan Esterase from White-Rot Fungus <i>Irpex lacteus</i>

Biotechnological approaches for the production of prebiotics and their potential applications

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