期刊
JOURNAL OF CEREAL SCIENCE
卷 71, 期 -, 页码 86-92出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jcs.2016.08.002
关键词
Microfluidization; Corn bran; Pressure; Number of passes
资金
- USDA-NIFA [2012-38821-20066]
- NIFA [2012-38821-20066, 578183] Funding Source: Federal RePORTER
Corn bran was microfluidized through a 200-mu m channel in the pressure range of 124.1-158.7 MPa for 1 -5 passes following the central composite experimental design. Physicochemical properties and antioxidant properties of microfluidized bran samples were measured and fitted to the second order polynomial model. The response surface equations obtained showed that all the properties examined had a positive linear relationship with pressure and a negative quadratic relationship with number of passes except for ABTS radical scavenging activity which was quadratically related to both processing parameters. The number of passes generally had a more pronounced effect on the examined properties compared with pressure. Within the experimental range, the maximum values of swelling capacity, water-holding capacity, and oil-holding capacity were respectively 10.62 ml/g d.w. (at 158.7 MPa), 5.49 g water/g d.w. (at 158.7 MPa), and 4.61 g oil/g d.w. (at 124.1 MPa); the maximum values of surface reactive phenolic content, DPPH and ABTS radical scavenging activities were 148.80 mg/FAE g d.w. (at 158.7.MPa), 50.02 mu mol TE/g d.w. (at 158.7 MPa), and 47.90 mu mol TE/g d.w. (at 145.9 MPa), respectively. All maximum values of the properties occurred at 5 passes. Published by Elsevier Ltd.
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