Abstract
Rice is an important cereal crop that is consumed by more than half of the world’s population. The outer layer of rice, known as rice bran (RB), is usually discarded or used as animal feed due to its shorter shelf-life which can lead to rancidity, unpleasant odours and flavours. However, it has been identified as a valuable source of bioactive phytochemicals that may act as protective agents against cellular and biomolecular damage. Numerous stabilisation processes are currently applied to RB in order to prevent the rancidification process and thus improve RB shelf-life. However, the application of such treatments has been observed to alter the fatty acids, chemical profile and antioxidant activity. The aim of this study was to evaluate the influence of stabilisation methods on the fatty acid profile, phenolic composition and antioxidant activity of RB. The samples under investigation were freshly milled non-stabilised RB (NS-RB) and RB that had undergone either extrusion (ES-RB), microwave (MS-RB) or oven stabilisation (OS-RB) processes. Bench-top assays such as Folin-Ciocialteu total phenolic content (TPC), 1,1-diphenyl-2-picrylhydrazyl (DPPH), and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assays were employed to determine the antioxidant capacity of the various samples.
| Original language | English |
|---|---|
| Pages | 34 |
| Number of pages | 1 |
| Publication status | Published - 12 Sept 2018 |
| Event | 68th Australasian Grain Science Conference - Charles Sturt University, Wagga Wagga, Australia Duration: 10 Sept 2018 → 13 Sept 2018 https://www.ausgrainscience.org.au/wp-content/uploads/Conference2018/Booklet-2018.pdf (Conference booklet) |
Conference
| Conference | 68th Australasian Grain Science Conference |
|---|---|
| Abbreviated title | Grain Science Transforming our Future |
| Country/Territory | Australia |
| City | Wagga Wagga |
| Period | 10/09/18 → 13/09/18 |
| Internet address |