Bifidogenic effect and stimulation of short chain fatty acid production in human faecal slurry cultures by oligosaccharides derived from lactose and lactulose
Oligosaccharides;
bifidogenic effect;
short chain fatty acids;
lactose;
lactulose;
HUMAN GUT MICROFLORA;
ULTRA SP-L;
BETA-GALACTOSIDASE;
IN-VITRO;
KLUYVEROMYCES-LACTIS;
ENZYMATIC PRODUCTION;
INTESTINAL BACTERIA;
RESISTANT STARCH;
HEALTHY-SUBJECTS;
DOUBLE-BLIND;
D O I:
10.1017/S0022029909004063
中图分类号:
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号:
090502 [动物营养与饲料科学];
摘要:
Bifidogenic effect and stimulation of short chain fatty acid (SCFA) production by fractions of oligosaccharides with a DP >= 3 and Gal beta(1-6) linkages synthesised from lactose or lactulose by Pectinex Ultra SP-L and Lactozym 3000 L HP G were evaluated in human faecal slurries. Results were compared with those obtained for the commercial oligosaccharide mixture Vivinal (R)-GOS. Quantitative real-time PCR showed that all galacto-oligosaccharide (GOS) fractions stimulated slightly higher bifidobacteria growth than lactose, lactulose and Vivinal (R)-GOS. GOS fractions promoted the production of total SCFA and acetic acid in a similar way to Vivinal (R)-GOS and more than glucose, lactose and lactulose. In conclusion, oligosaccharides derived from lactose and lactulose may represent a suitable alternative to lactulose for the design of new functional food ingredients.