Other Bioproducts Produced by Microbial Conversion of Biomass: Introduction

The use of microorganisms in conversion processes to produce usable material from biomass sources has been ongoing for several decades. Most of the reports in the literature discuss the development of bioprocesses that are involved in the production of simple sugars, which are then used to produce bioethanol or related com­pounds for use as biofuels. However, there are new trends emerging for the use of biomass conversion by microbes, as shown in Table 5.2. Biomass conversion processes may eventually be implemented to produce a much greater array of useful bioproducts, in addition to biofuels.

STRATEGIES OF USING MICROBIAL PRETREATMENT TO ENHANCE SUGAR RELEASE FOR BIOFUEL AND BIOPRODUCT PRODUCTION 85 TABLE 5.2 List of Bioproducts Produced by Different Microorganisms

Bioproduct Organism Conversion References

Biofuel

Clostridium thermosaccharolyticum

Xylose to ethanol

(Mistry and Cooney, 1989)

Engineered Escherichia coli

Cell wall sugars to biofuel

(Doran-Peterson et al., 2008)

Lactobacillus buchneri NRRL B-30929

Xylose and glucose to ethanol and chemicals

(Liu et al., 2009)

Saccharomyces cerevisiae

Heptanal to heptanol

(Verma et al., 2010)

Saccharomyces cerevisiae AM12

Spent shiitake mushroom medium (using Meicelase) into ethanol

(Asada et al., 2011)

Pichia stiptis NCIM3498 and Saccharomyces cerevisiae-VS3

Hemicellulosic hydrolysate to ethanol

(Chandel et al., 2011)

Methanosarcinales and Methanomicrobiales

Coal to methane

(Wawrik et al., 2012)

Saccharomyces cerevisiae daughter strains

Pretreated pine to ethanol

(Hawkins and Doran-Peterson, 2011)

Trichoderma reesei xylanase

Wheat biomass to bioethanol

(Juodeikiene et al., 2012)

Saccharomyces cerevisiae

Lignocellulose-derived sugars to ethanol

(Madhavan et al., 2012)

Clostridium saccharoperbutylacetonicum

n-butyrate to n-butanol

(Richter et al., 2012)

Burkholderia sp. C20

Microalgal oil to biodiesel

(Tran et al., 2012)

Pretreated/delignified

biomass

Cyathus stercoreus and Ceriporiopsis subversmispora

Grass stem pretreatment

(Akin et al., 1995)

Ceriporia lacerata, Stereum hirsutum, and Polyporus brumalis

Softwood pretreatment

(Lee et al., 2007)

Ceriporiopsis subvermispora

Corn stover pretreatment for enzymatic hydrolysis and ethanol production

(Wan and Li, 2010)

Trametes versicolor

Canola straw pretreatment for biofuel production

(Canam et al., 2011)

Pleurotus ostreatus

Wood degradation

(Piskur et al., 2011)

Irpex lacteus

Straw saccharification

(Pinto et al., 2012)

Tramete hirsuta

Paddy straw pretreatment for improved enzymatic saccharification

(Saritha et al., 2012b)

Phanerochaete chrysosporium

Pretreatment of cornstalk to enhance enzymatic saccharification and hydrogen production

(Zhao et al., 2012)

Simple sugars

Aureobasidium pullulans (yeastlike mold strain)

Glucose to gluconic acid

(Anastassiadis et al., 2003)

Enterobacter aerogenes 230S

L-Psicose to L-tagatose

(Rao et al., 2008)

Debaryomyces hansenii

D-xylose and sugarcane bagasse hemicellulose to xylitol

(Prakash et al., 2011)

Agromyces sp. C42 and Stenotrophomonas sp. A10b (from yellow mealworm gut)

Lignocellulose to reducing sugars

(Qi et al., 2011)

Ustilago maydis

Fungal lignocellulosic biomass to glucose and other sugars

(Couturier et al., 2012)

(Continued)

TABLE 5.2 List of Bioproducts Produced by Different Microorganisms—cont’d

Bioproduct

Organism

Conversion

References

Debaryomyces hansenii NRRL Y-7426

Distilled grape marc hemicellulosic hydrolysates to xylitol

(Salgado et al., 2012)

Candida athensensis SB18

D-xylose and horticultural waste hemicellulosic hydrolysate to xylitol

(Zhang et al., 2012a)

Acidotermus celluloyticus endoglucanase

Cellulose to glucose

(Zhang et al., 2012b)

Lipids

Cellulolytic fungus of Aspergillus oryzae A-4

Wheat straw to lipid

(Lin et al., 2010)

Engineered Escherichia coli

Simple sugars to fatty esters, fatty alcohols and waxes

(Steen et al., 2010)

Ustilago maydis

Crude glycerol to glycolipids

(Liu et al., 2011)

Cryptococcus curvatus

Crude glycerol to oleic acid, palmitic acid, stearic acid and linoleic acid

(Thiru et al., 2011)

Trichosporon coremiiforme

Organic acids and residual sugars (following butanol fermentation) to oil

(Chen et al., 2012a)

Trichosporon cutaneum

Corncob acid hydrolysate to oil

(Chen et al., 2012b)

Lipomyces starkeyi

Cellobiose and xylose into intracellular lipids

(Gong et al., 2012)

Rhodococcus opacus DSM 1069 and PD630

Lignin model compounds to triglycerides

(Kosa and Ragauskas, 2012)

Organic chemicals

Clostridium lentocellum SG6

Cellulose to acetic acid

(Tammali et al., 2003)

Saccharomyces uvarum SW-58

Ethyl 4,4,4-trifluoroacetoacetate to ethyl (R)-4,4,4-trifluoro — 3-hydroxybutanoate [(R)-2]

(He et al., 2007)

Engineered E. coli

Glucose to glucuronic and glucaric acid

(Moon et al., 2009)

Phanerochaete chrysosporium

Rice straw biodelignification in the presence of dirhamnolipid biosurfactant

(Liang et al., 2010)

Schizophyllum commune

Cinnamic acid derivatives to phenols

(Nimura et al., 2010)

Aspergillus parasiticus speare BGB

Glycyrrhizinic acid in liquorice to 18-beta glycyrrhetinic acid

(Wang et al., 2010)

Gliocladium spp. and E. coli

Cellulosic biomass to hydrocarbons

(Ahamed and Ahring, 2011)

Actinobacillus succinogenes

Sugarcane bagasse hemicellulose hydrolysate to succinic acid

(Borges and Pereira, 2011)

Engineered Thermobifida fusca

Untreated lignocellulosic biomass to 1-propanol

(Deng and Fong, 2011)

Plasticicumulans acidivorans/Thauera selenatis mixed culture

Lactate, lactate/acetate mix to poly- 3-hydroxy butyrate

(Jiang et al., 2011)

Klebsiella pneumoniae

Glycerol and xylose cofermentation to 1,3-propanediol

(Jin et al., 2011b)

Clostridium ragsdalei

Acetone to isopropanol

(Ramachandriya et al., 2011)

Other

Pseudonocardia carboxydivorans

Compactin to pravastatin

(Lin et al., 2011)

Ganoderma sp. rckk02

Wheat straw to nutritive ruminant feed

(Shrivastava et al., 2012)

Brevundimonas sp. SGJ

L-Tyrosine to

L-dihydroxyphenylalanine

(Surwase et al., 2012)

Lactobacillus brevis TCCCC13007

Monosodium glutamate to gamma- aminobutyric acid

(Zhang et al., 2012c)