Subcritical water mediated hydrolysis of cider spent yeast: Kinetics of HMF synthesis from a waste microbial biomass

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@article{a35edc34b1f444469ab9525edd03c0a0,
title = "Subcritical water mediated hydrolysis of cider spent yeast: Kinetics of HMF synthesis from a waste microbial biomass",
abstract = "Cider lees, a microbial by-product of the cider industry which is primarily comprised yeast cells was subjected to subcritical water mediated hydrolysis using a batch tubular reactor over a temperature range of 175–275 °C. The efficacy of subcritical water to hydrolyse the polysaccharides and mannoproteins in the yeast's cell wall to monosaccharides and for the glucose and mannose to be dehydrated to 5-hydroxymethylfurfural (HMF) was investigated in a non-catalysed reaction using a consecutive first order kinetic model. Results suggest that the cider yeast cell wall, which is backboned by milder bonds, was decomposed at lower temperatures when compared to cellulose hydrolysis under the same conditions. Glucose and mannose formation was observed at temperatures as low as 175 °C and their conversion to HMF at 225 °C resulted the yield of more than 12%, based on the crude feedstock. Reaction rates for other decomposition routes were also calculated and discussed using the developed model.",
keywords = "Biomass, Hydrothermal treatment, 5-Hydroxymethylfurfural, Cider spent yeast, Cell wall hydrolysis",
author = "Alireza Bahari and Muhammad Baig and Gary Leeke and Steven Bowra and Regina Santos",
year = "2014",
month = nov,
doi = "10.1016/j.indcrop.2014.06.031",
language = "English",
volume = "61",
pages = "137--144",
journal = "Industrial Crops and Products",
issn = "0926-6690",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Subcritical water mediated hydrolysis of cider spent yeast

T2 - Kinetics of HMF synthesis from a waste microbial biomass

AU - Bahari, Alireza

AU - Baig, Muhammad

AU - Leeke, Gary

AU - Bowra, Steven

AU - Santos, Regina

PY - 2014/11

Y1 - 2014/11

N2 - Cider lees, a microbial by-product of the cider industry which is primarily comprised yeast cells was subjected to subcritical water mediated hydrolysis using a batch tubular reactor over a temperature range of 175–275 °C. The efficacy of subcritical water to hydrolyse the polysaccharides and mannoproteins in the yeast's cell wall to monosaccharides and for the glucose and mannose to be dehydrated to 5-hydroxymethylfurfural (HMF) was investigated in a non-catalysed reaction using a consecutive first order kinetic model. Results suggest that the cider yeast cell wall, which is backboned by milder bonds, was decomposed at lower temperatures when compared to cellulose hydrolysis under the same conditions. Glucose and mannose formation was observed at temperatures as low as 175 °C and their conversion to HMF at 225 °C resulted the yield of more than 12%, based on the crude feedstock. Reaction rates for other decomposition routes were also calculated and discussed using the developed model.

AB - Cider lees, a microbial by-product of the cider industry which is primarily comprised yeast cells was subjected to subcritical water mediated hydrolysis using a batch tubular reactor over a temperature range of 175–275 °C. The efficacy of subcritical water to hydrolyse the polysaccharides and mannoproteins in the yeast's cell wall to monosaccharides and for the glucose and mannose to be dehydrated to 5-hydroxymethylfurfural (HMF) was investigated in a non-catalysed reaction using a consecutive first order kinetic model. Results suggest that the cider yeast cell wall, which is backboned by milder bonds, was decomposed at lower temperatures when compared to cellulose hydrolysis under the same conditions. Glucose and mannose formation was observed at temperatures as low as 175 °C and their conversion to HMF at 225 °C resulted the yield of more than 12%, based on the crude feedstock. Reaction rates for other decomposition routes were also calculated and discussed using the developed model.

KW - Biomass

KW - Hydrothermal treatment

KW - 5-Hydroxymethylfurfural

KW - Cider spent yeast

KW - Cell wall hydrolysis

U2 - 10.1016/j.indcrop.2014.06.031

DO - 10.1016/j.indcrop.2014.06.031

M3 - Article

VL - 61

SP - 137

EP - 144

JO - Industrial Crops and Products

JF - Industrial Crops and Products

SN - 0926-6690

ER -