Process optimization of alternating magnetic field-assisted enzymatic modification of rice bran dietary fiber

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Jun. 2026, Vol. 49 No. 6: 789-794

DOI: 10.3969/j.issn.1003-5060.2026.06.010

Authors

LIN Yanting $ ^{1} $, WU Zeyu $ ^{1,2} $, WANG Yikun $ ^{3} $, YAN Weilong $ ^{4} $, ZHANG Wencheng $ ^{1,2} $

(1. School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China; 2. Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230051, China; 3. Anhui Xiyangyang Agricultural Technology Co., Ltd., Hefei 231521, China; 4. Anhui Zhenggumi Food Technology Co., Ltd., Fengyang 233100, China)

Abstract and Keywords

Abstract: The dietary fiber(DF) in rice bran was modified by using alternating magnetic field(AMF)-assisted cellulase treatment to improve the yield of soluble dietary fiber(SDF) from rice bran. The effects of enzyme addition, enzyme digestion time, enzyme digestion temperature and magnetic field time on the yield of rice bran SDF were investigated. Based on the results of single-factor experiments, the Box-Behnken design(BBD) and response surface analysis method were used to optimize the modification process conditions. The results showed that under the conditions of cellulase addition of 5.5 mg, enzyme digestion time of 57 min, enzyme digestion temperature of 56 ℃ and magnetic field time of 22 min, the yield of modified SDF could reach 14.46%. Compared with unmodified SDF, the yield was increased by 13.04 times.

Keywords: rice bran; soluble dietary fiber(SDF); alternating magnetic field(AMF); cellulase; modification

作者信息

林艳婷 $ ^{1} $，吴泽宇 $ ^{1,2} $，王宜坤 $ ^{3} $，严伟龙 $ ^{4} $，张文成 $ ^{1,2} $

（1. 合肥工业大学食品与生物工程学院，安徽合肥 230601；2. 合肥工业大学智能制造技术研究院，安徽合肥 230051；3. 安徽喜洋洋农业科技有限公司，安徽合肥 231521；4. 安徽省蒸谷米食品科技有限公司，安徽凤阳 233100）

摘要和关键词

摘要: 文章以米糠为原料, 采用交变磁场(alternating magnetic field, AMF)辅助纤维素酶处理的方法对米糠中的膳食纤维进行改性, 以提高米糠可溶性膳食纤维(soluble dietary fiber, SDF)的得率; 并研究纤维素酶添加量、酶解时间、酶解温度和磁场处理时间等因素对SDF得率的影响。基于单因素实验的结果, 采用Box-Behnken设计和响应面分析法对改性工艺条件进行优化。结果表明, 在纤维素酶添加量为5.5 mg、酶解时间为57 min、酶解温度为56 ℃、磁场处理时间为22 min的条件下, 改性SDF的得率可达14.46%, 与未改性SDF相比, 得率提高了13.04倍。

关键词: 米糠；可溶性膳食纤维(SDF)；交变磁场(AMF)；纤维素酶；改性

Funding

安徽省重点研究与开发计划资助项目(202204c06020075);合肥工业大学智能制造技术研究院“科技成果培育专项”资助项目(IMIPY2022015)

合肥工业大学学报(自然科学版)

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