Micellization of Beta‐Carotene from Soy‐Protein Stabilized Oil‐in‐Water Emulsions under In Vitro Conditions of Lipolysis
Bibliographic record
Abstract
Abstract The details of the interfacial changes occurring during digestion of an oil‐in‐water emulsion stabilized with soy protein isolate (SPI) and the impact of the changes on lipolysis and subsequent release of β‐carotene (BC) were studied using a two‐step in vitro digestion model with varying composition containing bile salts (BS), colipase (COL), phospholipids (PL), and phospholipase A 2 (PLA 2 ). The hydrolysis of the interfacial layer by pepsin resulted in significant changes in the emulsion droplet size distribution. The introduction of bio‐surfactants (BS and PL), in combination with the release of lipid digestion products in the duodenal stage, resulted in re‐emulsification of the oil droplets. During this stage a significant increase in the negative charge of the oil droplets from −40 to −70 mV, was also observed, indicating significant changes in interfacial composition. The activity of the pancreatic triglyceride lipase (PTL), as monitored by the liberation of free fatty acids, was largely governed by the composition of digestive fluids. In the presence of BS alone, lipid hydrolysis reached 66.1 ± 3.4%, while addition of PL inhibited lipolysis. Inclusion of PLA 2 was found to increase the rate of lipolysis markedly, and the introduction of COL, along with BS, significantly increased the efficiency of the lipolysis such that a maximum lipid hydrolysis of 81.2 ± 1.2% was reached with about 50% transfer of BC to the mixed micelles.
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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".