Abstract
Radio frequency (RF) technology is considered as a rapid heating method. Lipase in rice bran could highly accelerate lipid oxidation. The objectives of this study were to establish the radio frequency heating conditions for lipase inactivation and to evaluate the stability and antioxidant capacity. The results showed that the suitable electrode gap for a 1 kg sample load was 6 cm, and it only took 2 min to heat rice bran from 25 °C to 100 °C. Besides, there were no significant differences in the total phenolic content, flavonoid content and color between the untreated and RF-treated group, and the DPPH free radical scavenging activity of the RF treatment reached 84.8%. The acid value, free fatty acid content and peroxide value of the RF-treated rice bran met the quality standard after 8 weeks of storage at 4, 25 and 37 °C. In summary, this study provides valuable information about the RF heating procedure, and shows the great potential of RF technology for stabilizing rice bran efficiently.
Funder
Council of Agriculture, Taiwan
Subject
Plant Science,Health Professions (miscellaneous),Health(social science),Microbiology,Food Science
Reference29 articles.
1. Lipase and lipoxygenase activity, functionality, and nutrient losses in rice bran during storage;Malekian,2000
2. Extraction of protein and amino acids from deoiled rice bran by subcritical water hydrolysis
3. Antioxidant capacities and phenolic compounds of the husk, bran and endosperm of Thai rice
4. Effect of various heat treatments on rancidity and some bioactive compounds of rice bran
5. Microwave extraction of polysaccharides and triterpenoids from solid-state fermented products of Poria cocos;Chen;Taiwan. J. Agri. Chem. Food Sci.,2013
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