The effects of dietary fibres on microbial fermentation profiles by in vitro assessment using pig colonic digesta
Bibliographic record
Abstract
This thesis has investigated 'in vitro' fermentation profiles of soluble soybean polysaccharides (SSPS) and soluble flaxseed gum (SFG) by pig colonic digesta with inulin as the reference fibre. All fibre grown cultures showed a significant increase in total short chain fatty acid production, with the highest level of butyrate in SSPS grown cultures after 24 h incubation and the highest level of acetate and propionate in SFG grown cultures after 48 h incubation. Polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE) analysis of 16S rRNA genes revealed that the bacterial community structure was influenced by types of fibres. The population of major bacterial groups can also be altered by these fibres. Quantitative PCR analysis showed that SSPS enhanced the population of 'Bifidobacterium ' by more than 4 fold and SFG increased the abundance of ' Bacteroidetes' by more than 1.6 fold during the fermentation. Together, SSPS and SFG demonstrated beneficial effects towards colonic health during the fermentation. Further 'in vivo' studies are required to verify their physiological effects to promote the use of SSPS and SFG in functional fibre-fortified food products.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".