Mari Chinn

Professor

  • 919-515-6744
  • D. S. Weaver Labs 277
  • View CV

Education

Ph.D. 2003

Biosystem Engineering

University of Kentucky

M.S. 2000

Biosystem Engineering

University of Kentucky

B.S. 1998

Biological Systems Engineering

University of California, Davis

Research Description

The defined research program focuses on production of bio-based products, such as enzymes, biochemicals, and biofuels from agro-industrial residues and dedicated biomass crops. Several areas make up the program to address the diversity of renewable resources available and various processing methods that can be applied to generate products and enhance value: --Semi-solid fermentation technology, including solid substrate cultivation and liquid cultivations using solid carbon sources --Enzymatic conversion methods and fermentation for development of effective biomass conversion processes --Hybrid application of thermal and microbial conversion technologies for biofuel production from lignocellulosic biomass --Solvent extraction processes are also being investigated for biomass materials that contain natural colorants, nutraceuticals and other high value compounds. Integrated processing systems, linking crop production and storage practices to development of conversion technology, analytical methods and process model evaluation The projects and activities in these areas have evolved over time, yet the primary goal of establishing functional uses of renewable materials suited to NC for industrial bioproducts that promote sustainability and enhance rural development has remained the same. The biomass studied includes sugar, starch and lignocellulosic crops with divisions of the program developing strongly around sweet sorghum, industrial sweetpotatoes (ISP), perennial grasses, oil seeds, and single carbon gases derived from lignocellulosic materials. The research approach involves both basic and applied objectives, leading to development of processes at various scales, lab to industrial, that often integrate multiple operations within a given system. The program incorporates research direction for and scholarly contributions from research associates, post-docs, graduate students and undergraduate researchers. Education and outreach activities to disseminate advances in the research are also efforts integrated into the program.

Honors and Awards

  • ASABE A. W Farrall Young Educator Award, 2011

Publications

Biomass yields, cytogenetics, fertility, and compositional analyses of novel bioenergy grass hybrids (Tripidium spp.)
Maren, N. A., Touchell, D. H., Ranney, T. G., Ashrafi, H., Whitfield, M. B., & Chinn, M. (2020), GLOBAL CHANGE BIOLOGY BIOENERGY. https://doi.org/10.1111/gcbb.12676
Use of unconventional mixed Acetone-Butanol-Ethanol solvents for anthocyanin extraction from Purple-Fleshed sweetpotatoes
Zuleta-Correa, A., Chinn, M. S., Alfaro-Córdoba, M., Truong, V.-D., Yencho, G. C., & Bruno-Bárcena, J. M. (2020), Food Chemistry, 314, 125959. https://doi.org/10.1016/j.foodchem.2019.125959
Evidence of mixotrophic carbon-capture by n-butanol-producer Clostridium beijerinckii
Sandoval-Espinola, W. J., Chinn, M. S., Thon, M. R., & Bruno-Bárcena, J. M. (2017), Scientific Reports, 7(1). https://doi.org/10.1038/s41598-017-12962-8
Near infrared spectroscopic data handling and chemometric analysis with the R statistical programming language: A practical tutorial
Whitfield, B., & Chinn, M. (2017), Journal of Near Infrared Spectroscopy, 25(6), 363–380. https://doi.org/10.1177/0967033517740768
Biomass supply chain management in North Carolina (part 1): predictive model for cropland conversion to biomass feedstocks
R Caffrey, K., S Chinn, M., & W Veal, M. (2016), AIMS Energy, 4(2), 256–279. https://doi.org/10.3934/energy.2016.2.256
Biomass supply chain management in North Carolina (part 2): biomass feedstock logistical optimization
Caffrey, K., Chinn, M., Veal, M., & Kay, M. (2016), AIMS Energy, 4(2), 280–299. https://doi.org/10.3934/energy.2016.2.280
Characterization of Clostridium ljungdahlii OTA1: a non-autotrophic hyper ethanol-producing strain
Whitham, J. M., Schulte, M. J., Bobay, B. G., Bruno-Barcena, J. M., Chinn, M. S., Flickinger, M. C., … Grunden, A. M. (2016), Applied Microbiology and Biotechnology, 101(4), 1615–1630. https://doi.org/10.1007/S00253-016-7978-6
Improvement of Acid Hydrolysis Procedures for the Composition Analysis of Herbaceous Biomass
Whitfield, M. B., Chinn, M. S., & Veal, M. W. (2016), Energy & Fuels, 30(10), 8260–8269. https://doi.org/10.1021/acs.energyfuels.6b01390
Consolidated bioprocessing for biofuel production: recent advances
Chinn, M., & Mbaneme, V. (2015), Energy and Emission Control Technologies, 5, 23. https://doi.org/10.2147/eect.s63000
Inoculum optimization of Clostridium beijerinckii for reproducible growth
Sandoval-Espinola, W. J., Chinn, M., & Bruno-Barcena, J. M. (2015), FEMS Microbiology Letters, 362(19), fnv164. https://doi.org/10.1093/femsle/fnv164

View all publications via NC State Libraries

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Grants

Next Generation Miscanthus: Hybrid Performance Evaluation and Enhanced, Sustainable Feedstock Production and Supply in the Southeast U.S. for Biofuel and Bioproducts
US Dept. of Energy (DOE)(10/01/18 - 12/31/20)
Nutrient Dynamics and Production of Bioenergy Crops in Swine Effluent Sprayfields in North Carolina 2018
NC Department of Agriculture & Consumer Services(1/01/18 - 12/31/19)
A Study to Determine if the Biofuel Crop Camelina is a Wildlife Attractant (Phase II)
NC Department of Transportation(8/01/17 - 12/31/19)
Nutrient Dynamics and Production of Bioenergy Crops in Swine Effluent Sprayfields in North Carolina 2016-2017
NC Department of Agriculture & Consumer Services(11/30/-1 - 6/30/18)
Biomass Sorghum Variety Evaluation
NC Biotechnology Center(5/01/16 - 11/30/16)
Nutrient Dynamics and Production of Bioenergy Crops in Swine Effluent Sprayfields in North Carolina 2015-2016
NC Department of Agriculture & Consumer Services(1/01/16 - 2/28/17)
Mid-Atlantic Biomass Sorghum Collaborative
US Dept. of Agriculture (USDA) - National Institute of Food and Agriculture(11/30/-1 - 8/31/20)
Ensilage Technologies as Harvest Management Strategies for Bioenergy Feedstocks
NC Department of Agriculture & Consumer Services(1/01/15 - 12/31/17)
Nutrient Dynamics and Production of Bioenergy Crops in Swine Effluent Sprayfields in North Carolina
NC Department of Agriculture & Consumer Services(11/01/14 - 3/31/16)
A Study to Determine if the Biofuel Crop Camelina is a Wildlife Attractant
NC Department of Transportation(8/15/14 - 12/31/17)