PMID- 27713989 OWN - NLM STAT- MEDLINE DCOM- 20180205 LR - 20180205 IS - 2042-650X (Electronic) IS - 2042-6496 (Linking) VI - 7 IP - 9 DP - 2016 Sep 14 TI - Assessment of the prebiotic effect of quinoa and amaranth in the human intestinal ecosystem. PG - 3782-3788 AB - Quinoa and amaranth belong to the group of the so called "superfoods" and have a nutritional composition that confers multiple benefits. In this work, we explored the possibility of these foods exhibiting a prebiotic effect. These pseudocereals were subjected to an in vitro digestion and used as carbon sources in batch cultures with faecal human inocula. The effects on the microbiota composition and their metabolic products were determined by assessment of variations in pH, short-chain fatty acid (SCFA) production and changes in the dynamic bacterial populations by fluorescence in situ hybridization (FISH). After 48 h of incubation, the total SCFAs were 106.5 mM for quinoa and 108.83 mM for amaranth, in line with the decrease in pH. Considerable differences (p < 0.05) were found in certain microbial groups, including Bifidobacterium spp., Lactobacillus-Enterococcus, Atopobium, Bacteroides-Prevotella, Clostridium coccoides-Eubacterium rectale, Faecalibacterium prausnitzii and Roseburia intestinalis. Our research suggests that these pseudocereals can have the prebiotic potential and that their intake may improve dysbiosis or maintain the gastrointestinal health through a balanced intestinal microbiota, although additional studies are necessary. FAU - Gullon, Beatriz AU - Gullon B AD - Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain. FAU - Gullon, Patricia AU - Gullon P AD - Chemical & Environmental Engineering Department, University of the Basque Country UPV/EHU, Plaza Europa 1, 20018 Donostia-San Sebastian, Spain. patricia.gullon@ehu.es. FAU - Tavaria, Freni K AU - Tavaria FK AD - CBQF - Centro de Biotecnologia e Quimica Fina - Laboratorio Associado, Escola Superior de Biotecnologia, Universidade Catolica Portuguesa/Porto, Rua Arquiteto Lobao Vital, Apartado 2511, 4202-401 Porto, Portugal. FAU - Yanez, Remedios AU - Yanez R AD - Department of Chemical Engineering, Faculty of Science, University of Vigo (Campus Ourense), As Lagoas, 32004 Ourense, Spain and CITI-Tecnopole, San Ciprian de Vinas, 32901 Ourense, Spain. LA - eng PT - Journal Article PL - England TA - Food Funct JT - Food & function JID - 101549033 RN - 0 (Fatty Acids, Volatile) RN - 0 (Prebiotics) RN - 33X04XA5AT (Lactic Acid) SB - IM MH - *Amaranthus MH - *Chenopodium quinoa MH - Fatty Acids, Volatile/biosynthesis MH - Feces/microbiology MH - Fermentation MH - Gastrointestinal Microbiome/*physiology MH - Health MH - Humans MH - Hydrogen-Ion Concentration MH - In Situ Hybridization, Fluorescence MH - Lactic Acid/metabolism MH - Prebiotics/*administration & dosage EDAT- 2016/10/08 06:00 MHDA- 2018/02/06 06:00 CRDT- 2016/10/08 06:00 PHST- 2016/10/08 06:00 [entrez] PHST- 2016/10/08 06:00 [pubmed] PHST- 2018/02/06 06:00 [medline] AID - 10.1039/c6fo00924g [doi] PST - ppublish SO - Food Funct. 2016 Sep 14;7(9):3782-3788. doi: 10.1039/c6fo00924g.