The effect of drying method on the physical and chemical properties and antioxidant activity of extruded wheat bran

Authors

WU Fan, College of Food and Science Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023 , China
WANG Zhan, College of Food and Science Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023 , China ；Key Laboratory of the Deep Processing of Bulk Grain and Oil Authorized by Ministry of Education, Wuhan, Hubei 430023 , China
ZHOU Jian, College of Food and Science Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023 , China ；Key Laboratory of the Deep Processing of Bulk Grain and Oil Authorized by Ministry of Education, Wuhan, Hubei 430023 , China
SHEN Wang-yang, College of Food and Science Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023 , China ；Key Laboratory of the Deep Processing of Bulk Grain and Oil Authorized by Ministry of Education, Wuhan, Hubei 430023 , China
JIA Xi-wu, College of Food and Science Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023 , China ；Key Laboratory of the Deep Processing of Bulk Grain and Oil Authorized by Ministry of Education, Wuhan, Hubei 430023 , China

Abstract

Objective:Using wheat bran as raw material, the extruded bran is obtained by extrusion stabilization treatment, and the best drying method for extruded bran is determined.Methods:The effects of three drying methods (fluidized bed drying, microwave drying, hot air drying) were studied on the basic components of extruded bran, water holding capacity, water solubility, swelling power, oil holding power, color value and other physical and chemical properties, oxidation resistance, total phenols and total flavonoids; Using antioxidant, total phenols and total flavonoids as indicators to determine the best drying method for extruded bran.Results:The three drying methods have no significant effect on the crude protein, crude fat, ash and TDF of the extruded bran; Compared with fluidized bed drying, microwave drying and hot air drying can increase the content of starch and crude fiber; Drying has an effect on extrusion, and the influence of the water solubility of extruded wheat bran is: hot-air drying ＞ fluidized bed drying ＞ microwave drying; Compared with microwave drying and hot-air drying, fluidized bed drying can improve the expansion force and oil holding capacity of extruded bran; Compared with fluidized bed drying and hot-air drying, microwave drying can improve the water holding capacity, oxidation resistance, total phenol and total flavonoids content of extruded bran, and reduce brightness and whiteness.Conclusion:The best drying method is determined to be microwave drying.

Publication Date

9-2-2022

First Page

64

Last Page

69

DOI

10.13652/j.spjx.1003.5788.2022.90074

Recommended Citation

Fan, WU; Zhan, WANG; Jian, ZHOU; Wang-yang, SHEN; and Xi-wu, JIA (2022) "The effect of drying method on the physical and chemical properties and antioxidant activity of extruded wheat bran," Food and Machinery: Vol. 38: Iss. 6, Article 12.
DOI: 10.13652/j.spjx.1003.5788.2022.90074
Available at: https://www.ifoodmm.cn/journal/vol38/iss6/12

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