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| 大豆毛油磷脂组成对磷脂酶A1深度脱胶的影响 |
| Influence of phospholipids composition in crude soybean oil on phospholipase A1 deep degumming |
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| DOI： |
| 中文关键词: 大豆毛油 磷脂组成 磷脂酶A1 脱胶 |
| 英文关键词:crude soybean oil phospholipids composition phospholipase A1 degumming |
| 基金项目: |
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| 中文摘要: |
| 为确保后续精炼的顺利进行，大豆毛油需先进行脱胶处理将含磷量降至10 mg/kg以下。就磷脂酶A1（PLA1，Lecitase Ultra)对22种不同来源大豆毛油的深度脱胶效果进行了研究。结果表明：大豆毛油的磷脂组成对PLA1深度脱胶效果存在一定影响；PA占比与PLA1深度脱胶油含磷量呈极显著正相关（p<0.01），PC占比与PLA1深度脱胶油含磷量呈显著负相关（p<0.05）,PA与PC的比例与PLA1深度脱胶油含磷量呈极显著正相关（p<0.01）；PA含量较高、PC含量较低的大豆毛油PLA1深度脱胶效果相对较差；但大多数情况下，PLA1深度脱胶能够使大豆毛油的含磷量降至10 mg/kg以下，满足后续精炼要求。 |
| 英文摘要: |
| In order to ensure a smooth operation for following refining, the phosphorus content in crude soybean oil should be reduced below 10 mg/kg by degumming. The deep degumming effect of 22 kinds of crude soybean oils from different origins with phospholipase A1 (PLA1) was studied. The results showed that the phospholipids composition in crude soybean oil had influences on the effect of PLA1 deep degumming. The phosphatidic acid (PA) ratio had a remarkable and positive correlation with phosphorus content in PLA1 deep degummed oil(p＜0.01). The phosphatidylcholine(PC) ratio had a negative correlation with phosphorus content in PLA1 deep degummed oil(p＜0.05). The ratio of PA to PC had a remarkable and positive correlation with phosphorus content in PLA1 deep degummed oil(p＜0.01). The degumming effect of the crude soybean oil with higher content of PA and lower content of PC was relatively poor. However, the phosphorus contents in PLA1 deep degummed oil were ordinarily below 10 mg/kg to satisfy the requirements of following refining. |
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