A potential control point of glucose delivery from starchy foods: intestinal mucosal α‐glucosidase digestion
Bibliographic record
Abstract
To control the glucose delivery from starchy foods, much attention has been given to α‐amylase (AMY), as opposed to the contribution from mucosal α‐glucosidases. The aim of this research was to investigate the digestion capability of mucosal α‐glucosidases on various starch structures to explore their possible expanded roles in digestion. Substrates were incubated with recombinant N‐ (Nt) and C‐terminals (Ct) of maltase‐glucoamylase (MGAM) and sucrase‐isomaltase (SI) for different digestion periods, and the glucogenesis and residue structures were examined. At raw starch granule level, mucosal α‐glucosidases showed the capability to produce glucose from uncooked starch granules at a low digestion completion. At the cooked starch level, CtMGAM showed high digestion completion near 80% without AMY participation; other three subunits reached 20–30% digestion. At the α‐limit dextrin (LDx) level, the four subunits showed different roles where NtMGAM only digested short linear oligomers but the other three subunits individually digested large branched molecules with different completion percentage. Collectively, these findings suggest mucosal α‐glucosidases, particularly CtMGAM, may be potential control points for glucose delivery in the human body. This work was supported by internal funding from the Whistler Center and Children's Nutrition Research Center of the ARS/USDA.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 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 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".