https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Antioxidant and anti-proliferative properties of Davidson's plum (Davidsonia pruriens F. Muell) phenolic-enriched extracts as affected by different extraction solvents https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29794 Thu 04 Nov 2021 10:39:37 AEDT ]]> Optimum aqueous extraction conditions for preparation of a phenolic-enriched Davidson's plum (Davidsonia pruriens F. Muell) extract https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:28484 Davidsonia pruriens F. Muell) and to assess the physicochemical and antioxidant properties of the phenolic-enriched extract. The results showed that temperature, time and ratio significantly affected the extraction of TPC. Optimization of extraction conditions was performed using response surface methodology (RSM) utilising a Box–Behnken design. Optimal extraction conditions were determined to be temperature: 90 °C, extraction time: 30 min and solvent to mass ratio: 20:1 mL g−1. The extracted solid obtained under these conditions had low-moisture content, high water solubility and contained 45 mg GAE g−1 of TPC, 22 mg RUE g−1 of flavonoids, 3.2 mg CAE g−1 of proanthocyanidins, 2 mg CGE g−1 of anthocyanidins and 56 mg ACE g−1 vitamin C. The extract possessed potent antioxidant capacity, but was comparatively lower than those of vitamin E and BHT. Thus, Davidson's plum should be further investigated for its potential health promoting benefits and utilisation in the nutraceutical and food industries.]]> Sat 24 Mar 2018 07:39:36 AEDT ]]>