The total amount of Zanthoxylum alkylamides and hydroxy-α-sanshool in soybean oil showed a decreasing trend with increasing time of UVB irradiation.
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Degradation and Transformation Mechanisms of <i>Zanthoxylum</i> Alkylamides Exposed to UVB Light.
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The sentences
Also, the content of hydroxy-α-sanshool showed a constant decreasing trend, whereas the content of hydroxy-ε-sanshool showed an obvious trend of first increasing and then decreasing.