Three elements including VC, citric acid, sodium sulfite were chosen for the experiment and the analysis combined with the effect of color-ptotected.The results showed that the order of the effect is sodium sulfite, citric acid, VC. The best conditions for prtotecting colour is 0.2%VC, 0.2% citric acid, 0.15% sodium sulfite.
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(2025-6-4)
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