Dr. Joshua Ohair

Assistant Professor


Department of Biological Sciences

College of Life and Physical Sciences

Office: McCord Hall 112D

Phone: 615-963-5748

Email: johair@tnstate.edu



USDA Post-Doctoral Fellowship at Virginia Tech, Blacksburg, VA 24061

Ph.D. Biological Sciences, Tennessee State University, Nashville, TN 37209

M.S. Biology, Tennessee State University, Nashville, TN 37209

B.S. Microbiology and Molecular Biology, University of Central Florida, Orlando, FL 32816

Research Areas:

Microbial fermentation, waste biomass conversion to value-added products, bacterial species identification through genomic sequencing, and studies on thermophile microbial diversity from Yellowstone National Park.


Li H, Qin Y, Wu X, O'Hair J, Potts J, et al. 2022. Identification of heat-induced proteomes in meiotic pollen mother cells of tomato 'Maxifort' using single-cell-type tandem mass tag (TMT) proteomics. Vegetable Research 2: 2 https://doi.org/10.48130/VR-2022-0002 

Yu D, O’Hair J, Poe N, Jin Q, Pinton S, He Y, Huang H. Conversion of Food Waste into 2,3-Butanediol via Thermophilic Fermentation: Effects of Carbohydrate Content and Nutrient Supplementation. Foods. 2022; 11(2):169. https://doi.org/10.3390/foods11020169

He, Y.;OHair, J. A.; Jin, Q.; Xu, Z.; Wu, J.; Huang, H. Co-Production of Protein Hydrolysates and 2,3-Butanediol from Brewer’s Spent Grain.ACS Sustain. Chem. Eng.2021 . https://doi.org/10.1021/acssuschemeng.1c04162

OHair, J. A.; Jin, Q.; Li, H.; Yu, D.; He, Y.; Thapa, S.; Bhatti, S.; Huang, H.; Zhou, S. 2021.  Biochemical and Genomic Identification of Novel Thermophilic Bacillus Licheniformis Strains YNP1-TSU, YNP2-TSU, and YNP3-TSU with Potential in 2,3-Butanediol Production from Non-Sterile Food Waste Fermentation. Food Bioprod. Process. https://doi.org/https://doi.org/10.1016/j.fbp.2021.07.003.

OHair, J.; Jin, Q.; Yu, D.; Wu, J.; Wang, H.; Zhou, S.; Huang, H. 2021. Non-Sterile Fermentation of Food Waste Using Thermophilic and Alkaliphilic Bacillus Licheniformis YNP5-TSU for 2,3-Butanediol Production. Waste Manag. 120, 248–256. https://doi.org/https://doi.org/10.1016/j.wasman.2020.11.029.

O’Hair, J.; Jin, Q.; Yu, D.; Poe, N.; Li, H.; Thapa, S.; Zhou, S.; Huang, H. 2020. Thermophilic and Alkaliphilic Bacillus Licheniformis YNP5-TSU as an Ideal Candidate for 2,3-Butanediol Production. ACS Sustain. Chem. Eng. https://doi.org/10.1021/acssuschemeng.0c02759.

OHair, J. A. O.; Li, H.; Rangu, M.; Thapa, S.; Yang, Y.; Fish, T.; Bhatti, S.; Thannhauser, T. W.; Zhou, S. 2019. Proteomic Effects of Magnesium Stress on Biofilm Associated Proteins Isolated from Cellulolytic Bacillus Licheniformis YNP5-TSU. J. Proteomics Bioinformatic. 12, 113–121. https://doi.org/10.35248/0974-276X.19.12.504.

Thapa, S.; Li, H.; OHair, J.; Bhatti, S.; Chen, F.-C.; Nasr, K. Al; Johnson, T.; Zhou, S. 2019. Biochemical Characteristics of Microbial Enzymes and Their Significance from Industrial Perspectives. Mol. Biotechnol. No. 0123456789. https://doi.org/10.1007/s12033-019-00187-1.

Jin, Q.; O’Hair, J.; Stewart, A. C.; O’Keefe, S. F.; Neilson, A. P.; Kim, Y.-T.; McGuire, M.; Lee, A.; Wilder, G.; Huang, H. 2019. Compositional Characterization of Different Industrial White and Red Grape Pomaces in Virginia and the Potential Valorization of the Major Components. Foods. https://doi.org/10.3390/foods8120667.

O’ Hair, J. A.; Li, H.; Thapa, S.; Scholz, M.; Zhou, S. 2017. Draft Genome Sequences of Three Cellulolytic Bacillus Licheniformis Strains Isolated from Imperial Geyser, Amphitheater Springs, and Whiterock Springs inside Yellowstone National Park. Genome Announc. 5 (13). https://doi.org/10.1128/genomeA.00065-17.

OHair, J.; Hui, L.; Santosh, T.; Matthew, S.; Suping, Z. 2017. Draft Genome Sequence of Bacillus Altitudinis YNP4-TSU, Isolated from Yellowstone National Park. Genome Announc. 5 (28), e00631-17. https://doi.org/10.1128/genomeA.00631-17.

OHair, J.; Hui, L.; Santosh, T.; B., S. M.; Suping, Z. 2017. Draft Genome Sequence of Bacillus Licheniformis Strain YNP1-TSU Isolated from Whiterock Springs in Yellowstone National Park. Genome Announc. 5 (9), e01496-16. https://doi.org/10.1128/genomeA.01496-16.

Thapa S.; Li, H.; Joshua, O.; Bhatti, H. S.; Zhou, S. 2017. Metagenomics Prospective in Bio-Mining The Microbial Enzymes. J. Genes Proteins. 1 (1), 5.

OHair, J. A.; Johnson, T. L.; Ejiofor, A. O.; Zhou, S. 2016. Reducing Inconsistent Cellulolytic Screenings during the Gram’s Iodine Assay. Cellulose. 23 (5), 3389–3392. https://doi.org/10.1007/s10570-016-1027-6.

Courses taught:

BIOL2400 Principles of Microbiology

BIOL2401 Principles of Microbiology Lab

BIOL 3420 General Microbiology

BIOL 3421 General Microbiology Lab

BIOL 1110 General Biology I

BIOL 1120 General Biology II 

BIOL 5400 Microbial Genetics 

BIOL 4920 Honors Undergraduate Research