F. Omar Holguín

ORCID: 0000-0002-8732-5427
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About
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Research Areas
  • Algal biology and biofuel production
  • Marine and coastal ecosystems
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Photosynthetic Processes and Mechanisms
  • Subcritical and Supercritical Water Processes
  • Thermochemical Biomass Conversion Processes
  • Galaxies: Formation, Evolution, Phenomena
  • Astrophysics and Cosmic Phenomena
  • Microbial Metabolic Engineering and Bioproduction
  • Insect Pest Control Strategies
  • Astrophysics and Star Formation Studies
  • Insect and Pesticide Research
  • Essential Oils and Antimicrobial Activity
  • Nuts composition and effects
  • Phytochemicals and Antioxidant Activities
  • Biochemical and biochemical processes
  • Phytochemistry and Biological Activities
  • Petroleum Processing and Analysis
  • Mosquito-borne diseases and control
  • Plant biochemistry and biosynthesis
  • Biochemical Analysis and Sensing Techniques
  • Solar and Space Plasma Dynamics
  • Microbial Community Ecology and Physiology
  • Coffee research and impacts
  • Catalysis and Hydrodesulfurization Studies

New Mexico State University
2016-2025

Johns Hopkins University
2024

Johns Hopkins University Applied Physics Laboratory
2024

University of Michigan
2019-2022

United States University
2020

Los Alamos National Laboratory
2020

Planta
2007

Fred Hutch Cancer Center
2005

Cancer Research Center
2005

El Colegio de la Frontera Sur
2003

Summary Drastic alteration in macronutrients causes large changes gene expression the photosynthetic unicellular alga Chlamydomonas reinhardtii . Preliminary data suggested that cells follow a biphasic response to this change hinging on initiation of lipid accumulation, and we hypothesized drastic repatterning metabolism also followed modality. To test hypothesis, transcriptomic, proteomic, metabolite occur under nitrogen (N) deprivation were analyzed. Eight sampling times selected covering...

10.1111/tpj.12747 article EN publisher-specific-oa The Plant Journal 2014-12-17

Microalgae-based biofuels are promising sources of alternative energy, but improvements throughout the production process required to establish them as economically feasible. One most influential would be a significant increase in lipid yields, which could achieved by altering regulation biosynthesis and accumulation. Chlamydomonas reinhardtii accumulates oil (triacylglycerols, TAG) response nitrogen (N) deprivation. Although few important regulatory genes have been identified that involved...

10.1093/jxb/erv217 article EN cc-by Journal of Experimental Botany 2015-05-28

Abstract The accumulation of carbon storage compounds by many unicellular algae after nutrient deprivation occurs despite declines in their photosynthetic apparatus. To understand the regulation and roles photosynthesis during this potentially bioenergetically valuable process, we analyzed structure function nitrogen model alga Chlamydomonas reinhardtii. Transcriptomic, proteomic, metabolite, lipid profiling microscopic time course data were combined with multiple measures function. Levels...

10.1104/pp.114.250530 article EN cc-by PLANT PHYSIOLOGY 2014-12-08

Cases of mosquito- and tick-borne diseases are rising worldwide. Repellent products can protect individual users from being infected by such diseases. In a previous study, we identified five essential oils that display long-distance mosquito repellency using Y-tube olfactometer assay. the current contact repellent efficacy 20 active ingredients Environmental Protection Agency's (EPA) Minimum Risk Pesticides list were tested Aedes aegypti Ixodes scapularis. We utilized an arm-in-cage assay to...

10.1038/s41598-023-28820-9 article EN cc-by Scientific Reports 2023-01-30

We investigated the effect of power dissipation on microwave-accelerated simultaneous extraction and transesterification dry algal biomass (Nannochloropsis salina) to biodiesel. The response surface methodology (RSM) was applied design experiments optimize process parameters, including algae methanol ratio, reaction time catalyst concentrations, by evaluating their influences fatty acid methyl ester yield (FAME) under controlled microwave conditions. energy utilization efficiency estimated...

10.1039/c2gc16195h article EN Green Chemistry 2012-01-01

Abstract BACKGROUND Anthocyanin‐rich blue corn is an emerging specialty crop in the USA . The antioxidant properties of offer health benefits human diet. objectives this study were to identify, characterize and quantify anthocyanins from corn. Hypotheses tested that total anthocyanin content was similar among southwestern US accessions it would vary across locations. It also examined whether different components unique certain genotypes. RESULTS Across all locations accessions, average 0.43...

10.1002/jsfa.7671 article EN Journal of the Science of Food and Agriculture 2016-02-16

Large-scale galactic winds driven by stellar feedback are one phenomenon that influences the dynamical and chemical evolution of a galaxy, redistributing material throughout circumgalatic medium. Non-thermal from cosmic rays (CRs) -high-energy charged particles accelerated in supernovae young stars - can impact efficiency wind driving. The streaming instability limits speed at which they escape. However, presence turbulence, is subject to suppression depends on magnetization turbulence given...

10.1093/mnras/stz2568 article EN Monthly Notices of the Royal Astronomical Society 2019-09-12

Plant-based oils have a long history of use as insect repellents. In an earlier study, we showed that in 10% concentration, geraniol, 2-phenylethl propionate, and the plant-based essential clove cinnamon effectively protected from mosquito bites for over 60 min. To expand on this reanalyzed our GC-MS data to identify short organic constituents these oils. We then used arm-in-cage assay test repellency different concentrations combinations pure compounds. found sigmoidal relationship between...

10.3390/insects16010051 article EN cc-by Insects 2025-01-07

Metabolic response to four suboptimal cultivation temperatures was explored in Nannochloropsis salina, with an emphasis on fatty acid and lipid metabolism. Cultures were cultivated controlled environmental photobioreactors. Physiological performance, characterized by growth rate photosynthetic output, reduced at all three cold stress (5 °C, 10 15 °C). However, biomass productivity overall for cultures 20 °C like that of those grown the optimal temperature (25 Fatty elevated temperatures,...

10.1016/j.algal.2018.03.001 article EN cc-by-nc-nd Algal Research 2018-03-26

Public health research and vector control frequently require the rearing of large numbers mosquitoes. All target mosquito species are anautogenous, meaning that females vertebrate blood for egg production. Vertebrate blood, however, is costly, with a short shelf life. To overcome these constraints, we have developed SkitoSnack, an artificial meal replacement Aedes aegypti, dengue, Zika chikungunya virus. SkitoSnack contains bovine serum albumin hemoglobin as protein source well yolk...

10.1038/s41598-018-29415-5 article EN cc-by Scientific Reports 2018-07-17
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