The V C retention rate of haw jam by vacuum concentrating was notably higher than that by air concentrating. If the vacuum keep at 93.33kPa in vacuum pan, the V C retention rate of haw jam was 100% by vacuum concentrating.
英
美
- 真空濃縮比常壓濃縮的醬體V－C保存率高得多，真空濃縮的V－C保存率與真空度密切相關(guān)，保持93.；33kPa真空度濃縮可使醬體V－C保存率達100%25；
