2. Academic Validation
  3. The modulation effect of lotus (Nelumbo nucifera Gaertn.) seeds oligosaccharides with different structures on intestinal flora and action mode of growth effects on Bifidobacterium in vivo and in vitro

The modulation effect of lotus (Nelumbo nucifera Gaertn.) seeds oligosaccharides with different structures on intestinal flora and action mode of growth effects on Bifidobacterium in vivo and in vitro

  • Food Chem. 2023 Sep 1:419:136057. doi: 10.1016/j.foodchem.2023.136057.
Xiaoqing Ma 1,  Zhichang Zheng 1,  Qi Wang 2,  Jiaxin Zuo 1,  Jianing Ju 3,  Baodong Zheng 4,  Xu Lu 5
Affiliations

Affiliations

  • 1 College of Food Science, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, 350002 Fuzhou, China; China-Ireland International Cooperation Center for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, 350002 Fuzhou, China.
  • 2 Institute of Agricultural Engineering, Fujian Academy of Agricultural Sciences, 350003 Fuzhou, China.
  • 3 China-Ireland International Cooperation Center for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, 350002 Fuzhou, China; Teagasc Food Research Centre, Food Chemistry and Technology Department, Moorepark, Fermoy, Co. Cork, Ireland.
  • 4 College of Food Science, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, 350002 Fuzhou, China; Institute of Food Science and Technology, Fujian Agriculture and Forestry University, 18 Simon Pit Road, 350002 Fuzhou, China; China-Ireland International Cooperation Center for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, 350002 Fuzhou, China.
  • 5 College of Food Science, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, 350002 Fuzhou, China; Institute of Food Science and Technology, Fujian Agriculture and Forestry University, 18 Simon Pit Road, 350002 Fuzhou, China; China-Ireland International Cooperation Center for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, 350002 Fuzhou, China; Teagasc Food Research Centre, Food Chemistry and Technology Department, Moorepark, Fermoy, Co. Cork, Ireland. Electronic address: [email protected].
PMID: 37011571 DOI: 10.1016/j.foodchem.2023.136057
Abstract

Natural lotus seed oligosaccharides monomers (LOSs: LOS3-1, LOS3-2, and LOS4) were prepared by preparative chromatography and were hydroxyl-labeled with fluorescein isothiocyanate (FITC). The prebiotic properties of LOSs by the gut microbiota of male Balb/C mice in vivo and in vitro were studied. In vivo experiment results showed that LOS4 could significantly increase the average daily food consumption, weight, liver index and the abundance of Bacteroides and Bifidobacterium for mice (p < 0.05). In addition, LOS4 also had significant proliferation effect on Bifidobacterium adolescentis and longum in vitro (p < 0.05). Laser confocal microscopy observation showed interaction site between LOS4-FITC and Bifidobacterium adolescentis was located outside and inside of cell, which was completed within 1 h. The relationship between structures of LOSs and prebiotics of intestinal flora (especially Bifidobacterium), and expanded the knowledge on the effects of carbohydrate polymerization degree (DP) and glycosidic bond connection with fermentation selectivity of bacteria was studied.

Keywords

Bifidobacterium; Fecal gut microbiota; In vitro fermentation; Lotus seed; Oligosaccharides; Prebiotics; Structure activity relationship; Structures.

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