A5075261953- Postharvest Quality and Shelf Life Management
- Nanocomposite Films for Food Packaging
- Plant Pathogens and Fungal Diseases
- Essential Oils and Antimicrobial Activity
- Spectroscopy and Chemometric Analyses
- Plant Pathogenic Bacteria Studies
- Plant Physiology and Cultivation Studies
- Listeria monocytogenes in Food Safety
- Advanced Chemical Sensor Technologies
- Water Quality Monitoring and Analysis
- Plant-Microbe Interactions and Immunity
- Phytochemicals and Antioxidant Activities
- Plant Pathogens and Resistance
- Polysaccharides and Plant Cell Walls
- Phytochemistry and Bioactivity Studies
- Food Safety and Hygiene
- Food Chemistry and Fat Analysis
- Chemical synthesis and alkaloids
- Ziziphus Jujuba Studies and Applications
- Cocoa and Sweet Potato Agronomy
- Yeasts and Rust Fungi Studies
- Horticultural and Viticultural Research
- Date Palm Research Studies
- Ginseng Biological Effects and Applications
- Identification and Quantification in Food
University of Hawaii at Hilo
2025
United States Department of Agriculture
2014-2024
Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center
2023-2024
Oak Ridge Associated Universities
2024
Oak Ridge Institute for Science and Education
2024
Agricultural Research Service
2011-2023
U.S. Horticultural Research Laboratory
2012-2021
University of Florida
2017-2021
US Forest Service
2021
University of South Florida
2017
Taxonomic status: Bacteria; Phylum Proteobacteria; Class Gammaproteobacteria; Order Xanthomonadales; Family Xanthomonadaceae; Genus Xanthomonas; Species Xanthomonas citri ssp. (Xcc). Host range: Compatible hosts vary in their susceptibility to citrus canker (CC), with grapefruit, lime and lemon being the most susceptible, sweet orange moderately kumquat calamondin amongst least susceptible. Microbiological properties: Xcc is a rod-shaped (1.5-2.0 × 0.5-0.75 µm), Gram-negative, aerobic...
Abstract Chitosan coating plus different essential oils was developed and applied to fresh blueberries in order find more natural treatments preserve fruit quality safety during postharvest storage. Studies were 1st performed vitro where wild‐type Escherichia coli Penicillium digitatum grown suitable media, then subjected 6 oils. Three compounds, carvacrol (CAR), cinnamaldehyde (CIN), trans ‐cinnamaldehyde (ECIN) had high antimicrobial capacity selected for an vivo study storage of...
Chitosan films incorporated with various concentrations of the complex β-cyclodextrin and essential oils (β-CD/EO) were prepared investigated for antimicrobial, mechanical, physical properties. Four bacterial strains that commonly contaminate food products chosen as target bacteria to evaluate antimicrobial activity films. The incorporation β-CD/EO significantly increased activities chitosan against Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, Listeria monocytogenes. It...
The objective of this research was to evaluate the use a controlled-release carvacrol powder delay storage decay and maintain safety blueberries. microcapsule (11% (w/w) active carvacrol) surrounded by pectin/sodium alginate matrix. microcapsules were packed in an air-permeable pouch, then attached top clamshell filled with blueberries, inoculated Escherichia coli or Colletotrichum acutatum, non-inoculated control, monitored for microbial growth quality 10 days at °C 5 20 °C. Three...
Phytophthora is a long-established, well known and globally important genus of plant pathogens. Phylogenetic evidence has shown that the biologically distinct, obligate biotrophic downy mildews evolved from at least twice. Since, cladistically, this renders ‘paraphyletic’, it been proposed evolutionary clades be split into multiple genera (Runge et al. 2011; Crous 2021; Thines 2023; 2024). In letter, we review arguments for retention generic name with broad circumscription made by Brasier...
Coatings are generally applied to fruit as microemulsions, but nanoemulsions still experimental. ‘Nova’ mandarins ( Citrus reticulata ) were coated with shellac or carnauba Copernica cerifera microemulsions an experimental nanoemulsion; these compared uncoated control during storage for 7 days at 20 °C. also tested on ‘Unique’ tangors C. × sinensis stored 14 10 °C followed by a simulated marketing period of Fruit quality evaluations included weight loss, gloss, soluble solids (SS),...
There are parasites found on sashimi which can cause a series of health problems to those who consume them. Because the too small be visible naked eye, labor and time-consuming use microscope is required for detection. This study proposes near-infrared (VIS/NIR) hyperspectral imaging method quickly intelligently detect in sashimi. The research results show that VIS/NIR spectrums fish meat parasite images were different at certain wavelengths. ability probabilistic neural network (PNN)...
Liposome-encapsulated citral was prepared by means of a hot homogenization method. The microstructure, particle size, and zeta potential the capsules were analyzed transmission electron microscope dynamic light scattering, respectively, in which results showed good dispersion stability citral-loaded liposome. In vitro tests that liposome-encapsulated significantly (P < 0.05) reduced populations Escherichia coli, Bacillus subtilis, Staphylococcus aureus, Penicillium italicum more than free...
Visible/near-infrared (VIS/NIR) spectroscopy is a powerful tool for rapid, nondestructive fruit quality detection. This technology has been widely applied detection of small, thin-peeled fruit, though less so large, thick-peeled due to weak spectral signal resulting in reduction accuracy. More modeling work should be focused on solving this problem. “Shatian” pomelo traditional Chinese and granulation water loss are two major internal factors that influence its storage quality. However,...
Visible/near-infrared (VIS/NIR) spectroscopy is a powerful tool for rapid, nondestructive fruit quality detection. This technology has been widely applied detection of small thin-peel fruit, although less so large thick-peel because the low signal-to-noise ratio spectral signal, resulting in reduction accuracy. More modeling work should be focused on solving this problem. research explored method total soluble solid (TSS) content and acidity ‘Shatian’ pomelo, which are two major parameters...
Citrus canker (CC), caused by the bacterial pathogen Xanthomonas citri subsp. citri, impacts citrus production in many areas of world reducing yields, degrading tree health, and severely blemishing outer peels fresh fruit. The relative susceptibility to CC among different species varies from highly susceptible lime (Citrus × aurantifolia), sweet orange (C. sinensis), grapefruit paradisi) much less calamondin microcarpa) kumquat japonica). This investigation compares responses infection with...
The visible/near infrared (VIS/NIR) spectrometer and electronic nose (E-nose) are two commonly used portable nondestructive detection apparatuses which have a promising application for the quick acquisition of fruit’s internal quality in both orchard market. However, accuracy these instruments is sometimes unsatisfactory, especially thick peeled fruit like ‘Aiyuan 38’ orange, was investigated this research. objective research to find method improve an orange’s total soluble solid content...
The objective of this study was to find an efficient method for measuring the total soluble solid content (TSSC) and water “Luogang” orange. Quick, accurate, nondestructive detection tools (VIS/NIR spectroscopy, NIR machine vision, electronic nose), four data processing methods (Savitzky–Golay (SG), genetic algorithm (GA), multi-source information fusion (MIF), convolutional neural network (CNN) as deep learning method, a partial least squares regression (PLSR) modeling method) were compared...
Strawberry is an important fruit crop in Florida. Yearly losses can be attributed to pre- and postharvest decay incited by Botrytis cinerea P. Micheli ex Pers. resulting from primarily Rhizopus stolonifer (Ehrenb. Fr.) Vuillemin. In this study, the sanitizer peroxyacetic acid (100 μL·L −1 ) was sprayed on flowers developing strawberries 1, 2, 3 d preharvest. Most of time, days before harvest had significantly less than 1 day preharvest or not when stored at 18 °C. Strawberries field with...
To show that application of copper hydroxide citrus sprays mixed with field source water (possibly contaminated) will not support Escherichia coli on plant surfaces. Environmental stresses transient phyllosphere bacteria and presence eradicate these before harvest. Studies were performed in vitro grown broth then subjected to spray concentrations the leaves. exposed eradicated from within 6-8 h depending pH. Even near neutral pH (7·2), cells began die immediately after exposure copper. No E....
A controlled-release chlorine dioxide (ClO2) pouch was developed by sealing a slurry form of ClO2 into semipermeable polymer film; the release properties were monitored in containers with or without fruit. The affixed to inside perforated clamshell containing grape tomatoes, and effect on microbial population, firmness, weight loss evaluated during 14 day storage period at 20 °C. Within 3 days, concentration clamshells reached 3.5 ppm remained constant until 10. Thereafter, it decreased 2...
Fresh-cut mango ( Mangifera indica ) slices and chunks garner an exotic image are highly appreciated for their unique flavor nutritional value. However, processors tend to use firm unripe mangoes achieve shelf life of 10 14 days, which compromises eating quality. The post-processing ripe fresh-cut is limited by tissue softening, translucency, browning. current study was undertaken investigate whether edible coatings can extend the processed at eating-ripe stage. Three coatings,...
A controlled-release chlorine dioxide (ClO2) pouch was developed by sealing a slurry form of ClO2 into semipermeable polymer film; the release properties were monitored in containers with or without fruit. The affixed to inside perforated clamshell containing grape tomatoes, and effect on microbial population, firmness, weight loss evaluated during 14 day storage period at 20 °C. Within 3 days, concentration clamshells reached 3.5 ppm remained constant until 10. Thereafter, it decreased 2...
The flavor of Pomelo is highly variable and difficult to determine without peeling the fruit. quality pomelo due largely total soluble solid content (TSSC) in fruit there a commercial need for quick but nondestructive TSSC detection method industrial grading pomelo. Due large size thick mesocarp pomelo, determining internal manner difficult, accuracy further complicated by noise typically generated common methods other fruits. Thus, aim this study was optimal accurately detect find...
The genome sequence of the obligate chemolithoautotroph Hydrogenovibrio crunogenus paradoxically predicts a complete oxidative citric acid cycle (CAC). This prediction was tested by multiple approaches including whole cell carbon assimilation to verify autotrophy, phylogenetic analysis CAC enzyme sequences and assays. did not assimilate any organic compounds provided (acetate, succinate, glucose, yeast extract, tryptone). Enzyme activities confirmed that its is mostly uncoupled from NADH...
In this study, jujube polysaccharides (JP) were extracted from Jinsixiaozao, and carboxymethylated (CMJP) prepared. The optimum carboxymethylation conditions optimized by Response Surface Methodology (RSM) as follows: the reaction temperature was 60°C, concentration of sodium hydroxide (NaOH) solution 2.8 mol/L, content chloroacetic acid 2.12% with a degree substitution (DS) 0.2275 ± 0.0108. Physicochemical characterizations in vitro antioxidant prebiotic activities JP CMJP evaluated....