A5037036971- Food composition and properties
- Polysaccharides and Plant Cell Walls
- Gut microbiota and health
- Advanced Cellulose Research Studies
- Probiotics and Fermented Foods
- Microbial Metabolites in Food Biotechnology
- Polysaccharides Composition and Applications
- Insect Utilization and Effects
- Biofuel production and bioconversion
- Phytochemicals and Antioxidant Activities
- Digestive system and related health
- Metal Extraction and Bioleaching
- Garlic and Onion Studies
- Proteins in Food Systems
- Minerals Flotation and Separation Techniques
- Postharvest Quality and Shelf Life Management
- Insect Pest Control Strategies
- Phytase and its Applications
- Antibiotic Resistance in Bacteria
- Microbial Community Ecology and Physiology
- Pharmaceutical and Antibiotic Environmental Impacts
- Extraction and Separation Processes
- Animal and Plant Science Education
- Diet and metabolism studies
- Oral microbiology and periodontitis research
Agriculture and Food
2016-2025
The University of Queensland
2016-2025
ARC Centre of Excellence for Plant Success in Nature and Agriculture
2013-2024
Australian Research Council
2015-2023
Brisbane School of Theology
2020
Abstract Hemicelluloses, a family of heterogeneous polysaccharides with complex molecular structures, constitute fundamental component lignocellulosic biomass. However, the contribution each hemicellulose type to mechanical properties secondary plant cell walls remains elusive. Here we homogeneously incorporate different combinations extracted and purified hemicelluloses (xylans glucomannans) from softwood hardwood species into self-assembled networks during cellulose biosynthesis in...
Background/Objectives: Infections in dogs caused by methicillin-resistant staphylococci (MRS) present limited treatment options. This study’s objective was to investigate the molecular epidemiology of Staphylococcus spp. cultured exclusively from clinical canine skin and ear samples Queensland, Australia, using whole-genome sequencing (WGS). Methods: Forty-two isolated samples, an unknown number dogs, were sourced two veterinary diagnostic laboratories between January 2022 May 2023. These...
To determine the effect of carbon sources on cellulose produced by Gluconacetobacter xylinus strain ATCC 53524, and to characterize purity structural features produced.Modified Hestrin Schramm medium containing mannitol, glucose, glycerol, fructose, sucrose or galactose were inoculated with Ga. 53524. Plate counts indicated that all supported growth strain. Sucrose glycerol gave highest yields 3.83 3.75 g l(-1) respectively after 96 h fermentation, primarily due a surge in production last 12...
Starch is a major source of energy in the human diet and consumed diverse forms. Resistant starch (RS) escapes small intestinal digestion fermented colon by resident microbiota, with beneficial impacts on colonic function host health, but micro- nanoscale structure different physical forms food broader microbial community have not been described previously. Here, we use porcine vitro fermentation model to establish that dramatically microbiome composition, including key amylolytic species,...
Separately, polyphenols and plant cell walls (PCW) are important contributors to the health benefits associated with fruits vegetables. However, interactions PCW which occur either during food preparation or mastication may affect bioaccessibility hence bioavailability of polyphenols. Binding between anthocyanins, phenolic acids (PAs) components, were evaluated using both a bacterial cellulose–pectin model system black carrot puree system. The majority available bound material 60–70%...
To identify interactions of relevance to the structure and properties primary cell walls cereals grasses, we used arabinoxylan (1,3)(1,4)-β-glucan, major polymers in cereal/grass walls, construct composites with cellulose produced by Gluconacetobacter xylinus. Both associated prolifically without becoming rigid or altering nature extent crystallinity. Mechanical were modestly affected compared xyloglucan pectin (characteristic components nongrass walls) cellulose. In situ depletion arabinose...
Plant cell walls within the human diet are compositionally heterogeneous, so defining basis of nutritive properties is difficult. Using a pig fecal inoculum, in vitro fermentations soluble forms arabinoxylan, mixed-linkage glucan, and xyloglucan were compared with same polymers incorporated into bacterial cellulose composites. Fermentation rates highest similar for polysaccharides. Cellulose composites incorporating those polysaccharides fermented more slowly at to wheat bran. Bacterial...
Interactions between human gut microbiota and dietary fibres (DF) are influenced by the complexity diversity of both individual sources DF. Based on 480 in vitro fermentations, a full factorial experiment was performed with six faecal inocula representing two enterotypes three DF nanometer, micrometer, millimeter length-scales (apple pectin, apple cell walls particles) at concentrations. Increasing size reduced substrate disappearance fermentation rates but not biomass growth. Concentrated...
Background/Objectives: The presence of antibiotic residues (ARs) in animal products such as milk can be an important driver antimicrobial resistance commensal and pathogenic bacteria. Previous studies on ARs Nepal have demonstrated the samples but without further characterization for risk factor analysis. This study aimed to quantify prevalence factors 140 peri-urban dairy farms Kathmandu, Nepal, included a cross-sectional survey 2019 estimate farm-level AR prevalence. Results: Our results...
Abstract Background Altered gut microbiota has been associated with dopaminergic degenerative diseases in people, but studies on horses pituitary pars intermedia dysfunction (PPID) are lacking. Hypothesis/Objectives Investigate the effect of PPID fecal horses. Animals Nine and 13 age‐matched control Methods Prospective study. Fecal samples were collected bimonthly. Microbial analysis used 16S rRNA sequencing to determine relative abundance at genus phylum levels, assess alpha beta diversity...
<italic>In vitro</italic> fermentation of wheat starch depends on amylose content in cooked but not granule forms, and shows that high is a promising source fermentable carbohydrate the large intestine.
The demand for animal-based protein sources is increasing rapidly. rearing of insects on bioproducts and their subsequent use as feedstock animals has been receiving a lot attention lately. Hermetia illucens , black soldier flies are highly investigated owing to ability reduce transform different types wastes, such agricultural, household, municipal human sludge. nutritional composition amino acid profile fly larvae (BSFL) raised these organic wastes similar that several feed constituents...
The demand for animal proteins, especially from pork and poultry, is projected to increase significantly due rapid growth in population underlying socio-economic conditions. Livestock rearing using conventional feed ingredients becoming challenging climate change several other factors, thereby suggesting the need alternative, viable sustainable sources. use of black soldier fly larvae (BSFL) (Hermetia illucens) as a component promising candidate their ability valorise different organic waste...