Consumer Acceptability And Antidiabetic Properties Of Flakes And Crackers Developed From Selected Native Australian Plant Species

Type 2 diabetes, linked to an unhealthy diet, is increasing in Australia. This study aimed to evaluate the acceptability of potential antidiabetic food preventatives followed by phyto-component detection by high-performance liquid chromatography analysis and glycaemic index (GI) estimation by in vitro enzymatic hydrolysis. Five flakes and a cracker were developed from Acacia longifolia seeds, Typha orientalis rhizomes and Rhagodia candolleana berries. Samples were tested for consumer acceptability against a commercially available flake and cracker (as controls) by 44 participants using a 9-point hedonic scale. Overall acceptability of 86.4% and 54.5%-65.9% was recorded against control and test flakes, while control and test crackers recorded 84.1% and 70.5%, respectively. The test cracker contained gallic acid (GA) and rho-coumaric acid (PCA) with GI, 47.7 +/- 1.3, whereas control cracker contained GA and had GI, 70.3 +/- 2.5. These results indicate that the test cracker may have potential as an antidiabetic food preventative.