Barely Significant

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However, the extraction yields exhibited a decreasing trend with power beyond 400 W, which could be attributed to three interrelated factors: excessive bubble formation created a shielding effect that reduced the energy transfer efficiency, localized overheating at bubble collapse sites promoted thermal degradation of sensitive compounds, and elevated free radical generation from intensified bubble collapse that induced oxidative damage to target phytochemicals.
We note that while the core findings of this study—including the massive increases in pregnanolone, its conjugate, 17-hydroxypregnanolone, and 5β-pregnane-3α,20α-diol—withstand stringent FDR correction (q < 0.001; Table 2 ), a subset of nominally significant changes in minor downstream metabolites (e.g., epietiocholanolone conjugate, 5β-androstane-3α,17β-diol conjugate) should be interpreted as exploratory observations pending independent replication ( Table 2 , footnote).