Engineering <i>Saccharomyces cerevisiae</i> for the production of punicic acid-rich yeast biomass
Bibliographic record
Abstract
Abstract Punicic acid (PuA), an unusual conjugated linolenic acid found in pomegranate, offers diverse health benefits and potential applications in the food industry. The limited production of PuA from its natural plant sources has led to a growing interest in producing it through microbial fermentation. In this study, the “generally recognized as safe” yeast Saccharomyces cerevisiae was engineered to produce PuA. Candidate genes related to PuA synthesis were directly shuffled within the yeast genome. Subsequent screening and optimization resulted in a strain that synthesized 26.7% of its total fatty acids as PuA. Further analyses revealed that the strain’s storage lipids contained over 22% PuA. By incorporating the health-promoting lipid component into the nutritional profile of S. cerevisiae , the engineered strain could potentially serve as a sustainable source of yeast biomass with enhanced nutritional value.
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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 | 0.001 |
| 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".