Optimisation of extraction conditions for terpenoids in <i>Schizandra chinensis Baillon</i> using the response surface method
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Bibliographic record
Abstract
Abstract Terpenoids, which are the major volatile compounds of Schizandra chinensis Baillon ( Omija ), are the main component of phytoncide. The purpose of the present study was to provide more ways to utilise Omija by optimising terpenoid extraction. The response surface method (RSM) was used to maximise the levels of monoterpene, which has substantial physiological activity and sesquiterpene, which has strong impacts on flavour. Central composite design was used to optimise the extraction pressure (X 1 : 0.01‐0.1 Mpa), ethanol concentration (X 2 : 0%‐50%), and sample concentration (X 3 : 0.01‐0.2 g/mL). Analysis of variance showed that X 1 , X 2 and X 3 affected total terpenoid levels (Y 1 ) and monoterpene levels (Y 2 ), whereas only X 1 and X 3 significantly affected sesquiterpene content (Y 3 ) ( P < .05). The optimal conditions based on the individual responses were as follows: Y 1 and Y 2 , X 1 = 0.07 Mpa, X 2 = 36% and X 3 = 0.17 g/mL; Y 3 , X 1 = 0.10 Mpa, X 2 = 50% and X 3 = 0.20 g/mL.
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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 | 0.001 | 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 it