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Current Projects

Current Research Projects

The main research focus of my lab group is the integration of genetic information, gene expression data, and metabolism for increased production of value-added products. Our research has the ability to enhance current productions, create new green production routes, and produce new products that find uses directly or as precursors in the foodstuff, pharmaceutical, nutraceutical, agrochemical, and textile industries. We primarily focus on harnessing the metabolism of acetic acid bacteria. This group of bacteria are characterized by the incomplete oxidation of a variety of carbohydrates, sugar acids, polyols and alcohols to their respective acids, ketones, and aldehydes. These microbes perform oxidations that are either impossible by classical chemistry or that would require complicated protection chemistry and oftentimes toxic metal catalysts. Hence, acetic acid bacteria are viewed as ‘living oxidative catalysts,’ performing highly specific oxidations that channel the released electrons to molecular oxygen. These biotechnological processes are called ‘oxidative fermentations.’ Accordingly, acetic acid bacteria are used for numerous biotechnological processes, such as the production of L-sorbose (vitamin C synthesis) and 1-amino-D-sorbitol for the production of the antidiabetic drug miglitol. Industrial production of ketogluconates, dihydroxyacetone (tanning agent), aliphatic and aromatic carboxylates (fragrance and flavors) also use acetic acid bacteria.

Collaborations and Partnerships

Interdependence of the Microbiome with Host Circadian Rhythms

We have a collaboration with Dr. Alder Yu (UWL Biology Dept) that involves analyzing the changes of the microbiota of fruit flies when exposed to different light/dark cycles that disrupt natural circadian rhythms. The goals are to 1) analyze the effect of disruption of circadian rhythm on fruit fly gut microbiota, and to 2) determine pathogen susceptibility in circadian rhythm disrupted fruit flies. 

Fruit flies are ideal models to examine host-microbiome interactions and circadian rhythms because not only are they known to have circadian rhythms, they are genetically similar to humans sharing 75 % of all disease-causing genes, including 90% oncogenes. Fruit flies are also more tractable in comparison to humans and other mammals, are inexpensive to maintain, have short generation times, are more ethical to use experimentally, and have less complex microbial gut composition.
 

Mother's
Collaborations
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