skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High throughput nanostructure-initiator mass spectrometry screening of microbial growth conditions for maximal β-glucosidase production

Journal Article · · Frontiers in Microbiology
 [1];  [1];  [2];  [3];  [2];  [1];  [1];  [1]
  1. Joint BioEnergy Inst. (JBEI), Emeryville, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Joint BioEnergy Inst. (JBEI), Emeryville, CA (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Production of biofuels via enzymatic hydrolysis of complex plant polysaccharides is a subject of intense global interest. Microbial communities are known to express a wide range of enzymes necessary for the saccharification of lignocellulosic feedstocks and serve as a powerful reservoir for enzyme discovery. However, the growth temperature and conditions that yield high cellulase activity vary widely, and the throughput to identify optimal conditions has been limited by the slow handling and conventional analysis. A rapid method that uses small volumes of isolate culture to resolve specific enzyme activity is needed. In this work, a high throughput nanostructure-initiator mass spectrometry (NIMS)-based approach was developed for screening a thermophilic cellulolytic actinomycete, Thermobispora bispora, for β-glucosidase production under various growth conditions. Media that produced high β-glucosidase activity were found to be I/S + glucose or microcrystalline cellulose (MCC), Medium 84 + rolled oats, and M9TE + MCC at 45°C. Supernatants of cell cultures grown in M9TE + 1% MCC cleaved 2.5 times more substrate at 45°C than at all other temperatures. While T. bispora is reported to grow optimally at 60°C in Medium 84 + rolled oats and M9TE + 1% MCC, approximately 40% more conversion was observed at 45°C. This high throughput NIMS approach may provide an important tool in discovery and characterization of enzymes from environmental microbes for industrial and biofuel applications.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1511348
Journal Information:
Frontiers in Microbiology, Vol. 4, Issue DEC; ISSN 1664-302X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (30)

Using Mass Spectrometry to Characterize Self-Assembled Monolayers Presenting Peptides, Proteins, and Carbohydrates journal December 2002
On-Chip Synthesis and Label-Free Assays of Oligosaccharide Arrays journal April 2008
Encoding substrates with mass tags to resolve stereospecific reactions using Nimzyme: Encoding substrates with mass tags using Nimzyme journal February 2012
Saccharification of cellulosics by Microbispora bispora journal September 1986
Acoustic deposition with NIMS as a high-throughput enzyme activity assay journal March 2012
Versatile synthesis of probes for high-throughput enzyme activity screening journal April 2013
Inhibition Performance of Lignocellulose Degradation Products on Industrial Cellulase Enzymes During Cellulose Hydrolysis journal January 2009
Cellulose Hydrolysis by Cellobiohydrolase Cel7A Shows Mixed Hyperbolic Product Inhibition journal April 2011
Cellulase assay methods: a review journal October 1988
A long-wavelength fluorescent substrate for continuous fluorometric determination of cellulase activity: resorufin-β-d-cellobioside journal December 2007
A long-wavelength fluorescent substrate for continuous fluorometric determination of α-mannosidase activity: Resorufin α-d-mannopyranoside journal April 2010
Plant cell wall polymers as precursors for biofuels journal June 2010
Microbial hemicellulases journal June 2003
Rapid Screening of Fatty Acids Using Nanostructure-Initiator Mass Spectrometry journal March 2010
Addressing the Need for Alternative Transportation Fuels: The Joint BioEnergy Institute journal January 2008
Glycan Array on Aluminum Oxide-Coated Glass Slides through Phosphonate Chemistry journal September 2010
Clathrate nanostructures for mass spectrometry journal October 2007
Microbial production of fatty-acid-derived fuels and chemicals from plant biomass journal January 2010
Nanostructure-initiator mass spectrometry: a protocol for preparing and applying NIMS surfaces for high-sensitivity mass analysis journal July 2008
Cellulosomes: plant-cell-wall-degrading enzyme complexes journal July 2004
Colloid-based multiplexed screening for plant biomass-degrading glycoside hydrolase activities in microbial communities journal January 2011
A nanostructure-initiator mass spectrometry-based enzyme activity assay journal March 2008
Intracellular Functions of N-Linked Glycans journal March 2001
Glycoside Hydrolase Activities of Thermophilic Bacterial Consortia Adapted to Switchgrass journal July 2011
Microbial Cellulose Utilization: Fundamentals and Biotechnology journal September 2002
Genomics of Aerobic Cellulose Utilization Systems in Actinobacteria journal June 2012
Effects of Sugar Inhibition on Cellulases and β-Glucosidase During Enzymatic Hydrolysis of Softwood Substrates journal January 2004
Cellulase activities in biomass conversion: measurement methods and comparison journal June 2010
Complete genome sequence of Thermobispora bispora type strain (R51T) journal June 2010
Fungal Bioconversion of Lignocellulosic Residues; Opportunities & Perspectives journal January 2009

Cited By (3)

Profiling microbial lignocellulose degradation and utilization by emergent omics technologies journal July 2016
Metagenomic analysis of microbial consortia enriched from compost: new insights into the role of Actinobacteria in lignocellulose decomposition journal January 2016
Application of Stable Isotope-Assisted Metabolomics for Cell Metabolism Studies journal March 2014

Figures / Tables (5)