Publications by authors named "Dennis Webber"
Article Synopsis
- The study examined the physicochemical properties of stingless bee honey from four species in Malaysia and Australia, analyzing total phenolic and elemental content.
- Sugar analysis revealed that all samples contained significant amounts of trehalulose, but they did not meet the CODEX standards for moisture, acidity, and sugar levels.
- Findings highlighted distinct differences between Australian and Malaysian honeys, with Australian samples showing higher pH and mineral content, while the species G. thoracica had notably higher trehalulose levels, indicating potential for improved standards and market value for stingless bee honey.
Occurrence of environmental contaminants (pesticides, herbicides, PAHs) in Australian/Queensland honey.
Food Addit Contam Part B Surveill
September 2021
Article Synopsis
- Honey is valued as a health food due to its natural production by honeybees and its sugar content, but it can also carry environmental contaminants.
- This study investigated 212 honey samples from different areas in Queensland, Australia, focusing on pesticide, herbicide, and PAH levels.
- The analysis revealed low or negligible levels of contamination, indicating that honey from rural, peri-urban, and urban sources is consistently safe from these pollutants.
Davidsonia pruriens (DP) and Davidsonia jerseyana (DJ) are a gourmet bushfood with a sweet and sour taste. This study investigated the biochemical content, antioxidant activities, and sensory attributes of DP and DJ fruit infusions in comparison with commercial forest fruits (FF) infusion. Total phenolic and anthocyanin content was higher in FF infusion compared to DP or DJ fruit infusions (P < 0.
View Article and Find Full Text PDFStingless bee (Meliponini) honey has long been considered a high-value functional food, but the perceived therapeutic value has lacked attribution to specific bioactive components. Examination of honey from five different stingless bee species across Neotropical and Indo-Australian regions has enabled for the first time the identification of the unusual disaccharide trehalulose as a major component representing between 13 and 44 g per 100 g of each of these honeys. Trehalulose is an isomer of sucrose with an unusual α-(1 → 1) glucose-fructose glycosidic linkage and known acariogenic and low glycemic index properties.
View Article and Find Full Text PDFBioactive properties of solvent extracts of , and investigated. The antimicrobial activities evaluated using agar disc diffusion method against two bacteria ( and ) and six weak-acid resistant yeasts (, , , , and ). The antioxidant activities determined using DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenging and reducing power assays.
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