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Taxonomic group: bacteria / Firmicutes (Phylum: Firmicutes)

NCBI PubMed ID: 31887873
Publication DOI: 10.1016/j.carbpol.2019.115593
Journal NLM ID: 8307156
Publisher: Elsevier
Correspondence: lw1981

njau.edu.cn
Institutions: College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China, School of Food Science and Pharmacy, Xinjiang Agricultural University, Urumchi, Xinjiang 830052, PR China, College of Life Science, Tarim University, Alar, Xinjiang 843300, PR China

The aim of this study was to investigate the in vitro digestion and fermentation prebiotic properties of three released-exopolysaccharide fractions (r-EPS1, r-EPS2 and r-EPS3) from Lactobacillus delbrueckii ssp. bulgaricus SRFM-1. There were no free oligosaccharides and/or monosaccharides for r-EPS1 before and after simulated buccal, gastric and small intestinal (GSI) digestion in vitro. In contrast, r-EPS2 (13.4 %) and r-EPS3 (10.6 %) generated a few monosaccharides after digestion. Additionally, r-EPS1 and r-EPS2 seemed to present a strong bifidogenic effect comparing to inulin, as they exhibited high values of selectivity index (13.17 and 12.84, respectively). Furthermore, the fermentation with r-EPS1 produced the highest contents of acetic acid and lactic acid (56.3mM and 44.29mM, respectively), which resulted in the highest amounts of total short chain fatty acid (145.51mM) followed by r-EPS2 (135.57mM) and inulin (99.28mM). These results indicated that r-EPS from L. delbrueckii ssp. bulgaricus SRFM-1 could be a good potential candidate for new functional food prebiotic.

Released exopolysaccharide (r-EPS), in vitro fermentation, selectivity index (SI), short chain fatty acid (SCFA), In vitro digestion, Lactobacillus delbrueckii ssp.bulgaricus SRFM-1

Structure type: polymer chemical repeating unit
Location inside paper: p.115593-2, fraction r-EPS2
Trivial name: released-EPS (r-EPS)
Compound class: EPS
Contained glycoepitopes: IEDB_134624,IEDB_136044,IEDB_136906,IEDB_137472,IEDB_141794,IEDB_141806,IEDB_142487,IEDB_142488,IEDB_146664,IEDB_151528,IEDB_190606,IEDB_241101,IEDB_742248,IEDB_983931,SB_163,SB_165,SB_166,SB_187,SB_192,SB_195,SB_6,SB_7,SB_88

Methods: 1H NMR, GC, composition analysis, HPLC, statistical analysis, fermentation, FISH technique, GSI digestion in vitro

Related record ID(s): 32211
NCBI Taxonomy refs (TaxIDs): 1585
Reference(s) to other database(s): GTC:G04143OH
Show glycosyltransferases

There is only one chemically distinct structure:

[*]OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO[C@@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)O[C@@H](OC[C@H]3O[C@H]([*])[C@H](O)[C@@H](O)[C@H]3O)[C@H](O)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O

SVG MW SMILES 3D mol Ionize

Released exopolysaccharide (r-EPS), in vitro fermentation, selectivity index (SI), short chain fatty acid (SCFA), In vitro digestion, Lactobacillus delbrueckii ssp.bulgaricus SRFM-1

Structure type: polymer chemical repeating unit
Location inside paper: p.115593-2, fraction r-EPS1
Trivial name: released-EPS (r-EPS)
Compound class: EPS
Contained glycoepitopes: IEDB_130651,IEDB_136044,IEDB_136906,IEDB_137472,IEDB_141794,IEDB_141806,IEDB_142487,IEDB_142488,IEDB_144987,IEDB_144998,IEDB_146664,IEDB_151528,IEDB_152217,IEDB_153201,IEDB_156493,IEDB_190606,IEDB_241101,IEDB_742247,IEDB_983931,SB_165,SB_166,SB_178,SB_187,SB_192,SB_195,SB_31,SB_6,SB_62,SB_7,SB_88

Methods: 1H NMR, GC, composition analysis, HPLC, statistical analysis, fermentation, FISH technique, GSI digestion in vitro

Related record ID(s): 7597
NCBI Taxonomy refs (TaxIDs): 1585
Reference(s) to other database(s): GTC:G03412BG
Show glycosyltransferases

There is only one chemically distinct structure:

[*]OC[C@H]1O[C@@H](O[C@@H]2[C@@H](CO[C@@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)O[C@@H](O[C@H]3[C@@H](CO)O[C@H](O[C@H]4[C@@H](CO)O[C@@H](OC[C@H]5O[C@@H](O[C@@H]6[C@@H](CO[C@@H]7O[C@H](CO)[C@@H](O)[C@H](O)[C@H]7O)O[C@@H](O[C@H]7[C@@H](CO)O[C@H](O[C@H]8[C@@H](CO)O[C@@H](O[C@@H]9[C@@H](CO[C@H]%10O[C@H](CO)[C@@H](O)[C@H](O)[C@H]%10O)O[C@H]([*])[C@H](O)[C@H]9O)[C@H](O)[C@H]8O)[C@H](O)[C@H]7O)[C@H](O)[C@H]6O)[C@H](O)[C@@H](O)[C@H]5O)[C@H](O)[C@H]4O)[C@H](O)[C@H]3O)[C@H](O)[C@H]2O)[C@H](O)[C@@H](O)[C@H]1O

SVG MW SMILES 3D mol Ionize