Physicochemical properties of dietary fiber of bergamot and its effect on diabetic mice

Huifan Liu; Jiaxi Liang; Churong Liang; Guiqiang Liang; Jiacong Lai; Renying Zhang; Qin Wang; Gengsheng Xiao

doi:10.3389/fnut.2022.1040825

Physicochemical properties of dietary fiber of bergamot and its effect on diabetic mice

Front Nutr. 2022 Nov 4:9:1040825. doi: 10.3389/fnut.2022.1040825. eCollection 2022.

Authors

Huifan Liu^{1

2}, Jiaxi Liang¹, Churong Liang¹, Guiqiang Liang¹, Jiacong Lai¹, Renying Zhang¹, Qin Wang^{1

2}, Gengsheng Xiao^{1

2}

Affiliations

¹ College of Light Industry and Food, Zhongkai University of Agriculture and Engineering, Guangzhou, China.
² Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, China.

Abstract

Bergamot (Citrus medica L. var. sarcodactylis) contains different bioactive compounds, and their effects remain unclear. Therefore, the structural and bio-function of bergamot dietary fiber were investigated. A sequential extraction procedure was utilized to obtain soluble dietary fiber (SDF) and insoluble dietary fiber (IDF) from bergamot. The main monosaccharide in SDF and IDF is arabinose. SDF had a porous structure, which enhanced the water and oil holding capacity, as well as the cholesterol and glucose adsorption capacity, which was superior to that of IDF. In db/db diabetic mice, SDF and IDF regulated glucose tolerance and controlled blood glucose levels. Reduction of serum total cholesterol, triglycerides, and low-density lipoprotein cholesterol in SDF and IDF could be observed. In summary, SDF and IDF from bergamot effectively promoted health in patients with diabetes.

Keywords: bergamot; diabetes; dietary fiber; functional properties; physicochemical effects.