Unverified90% confidenceDecision RuleTime unknown
冻干工艺(FD)加工温度低于-40℃升华脱水，维生素C保留率可达90%以上，而热风干燥高温使VC损失70%以上；追求营养选包装标注'冻干/FD/freeze-dried'的产品
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90%
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Long-term
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Unverified选购冻干食材包时优先看'冻干（FD）'工艺而非'热风干燥（AD）'，冻干工艺在40℃以下升华脱水，维生素C和B族保留率可达90%以上，AD工艺高温会损失大量热敏营养素87% similarUnverifiedFD真空冷冻干燥工艺（-30℃以下低温升华）营养保留率可达90%以上，优于AD热风干燥（约60%）；选购时应确认包装标注为FD/冻干而非脱水或烘干，热风干燥食材维C、B族流失严重87% similarUnverified冻干工艺（FD真空冷冻干燥）比热风烘干（AD）更能保留维生素和纤维结构，包装标注'冻干/Freeze-dried'优于'烘干/干燥'，后者常掺入以降低成本75% similarUnverified冻干工艺（FD/真空冷冻干燥）比普通热风烘干更能保留营养且质地更疏松易溶，包装标注'冷冻干燥'的溶豆遇水溶解性优于普通烘焙溶豆74% similarUnverified低温干燥（≤60℃）能更好保留蛋白质和B族维生素但成本高价格贵，高温烘干产品营养损失较大但更便宜且保质期更长72% similar
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