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| 凤丹牡丹籽油的提取工艺优化及脂肪酸组成分析 |
| Optimization of extraction process of Paeonia suffruticosa Andr. (Fengdan) seed oil and its fatty acid composition |
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| DOI： |
| 中文关键词: 超声 提取 凤丹 牡丹籽油 脂肪酸组成 |
| 英文关键词:ultrasound extraction Fengdan Paeonia suffruticosa Andr. seed oil fatty acid composition |
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| 中文摘要: |
| 对常规正己烷提取法提取凤丹牡丹籽油的工艺进行了优化，并与超声辅助正己烷提取法进行了比较，采用气相色谱-质谱联用技术（GC-MS）确定了凤丹牡丹籽油的脂肪酸组成。结果表明：常规正己烷提取法提取凤丹牡丹籽油的最优条件为料液比1∶?6、提取时间8 h、提取温度65?℃，在此条件下牡丹籽油得率为30.67%，提取率达93.5%；超声辅助正己烷提取法在超声功率350 W、超声时间20 min、提取温度50?℃、料液比1∶?6条件下，牡丹籽油得率为30.63%，提取率达93.4%。凤丹牡丹籽油以亚麻酸、亚油酸、棕榈酸和硬脂酸为主，其不饱和脂肪酸及亚麻酸含量分别达8547%和60.074%。与常规正己烷提取法相比，超声辅助正己烷提取凤丹牡丹籽油具有提取效率高、提取温度低等优势，有利于保证牡丹籽油品质。 |
| 英文摘要: |
| The extraction process of Paeonia suffruticosa Andr. (Fengdan) seed oil by conventional hexane extraction method was optimized, and was compared with the ultrasound- assisted hexane extraction method. The fatty acid composition of Paeonia suffruticosa Andr. (Fengdan) seed oil was determined by GC-MS. The results showed that the optimal extraction conditions of Paeonia suffruticosa Andr. (Fengdan) seed oil by conventional hexane extraction method were obtained as follows: solid-liquid ratio 1∶?6, extraction time 8 h and extraction temperature 65?℃. Under these conditions, the yield and extraction rate were 30.67% and 93.5%, respectively. Under the conditions of ultrasound power 350 W, ultrasonic time 20 min, extraction temperature 50?℃ and solid-liquid ratio 1∶?6 by ultrasound- assisted hexane extraction method, the yield and extraction rate were 30.63% and 93.4%, respectively. The main fatty acids in Paeonia suffruticosa Andr. (Fengdan) seed oil were palmitic acid, linoleic acid, linolenic acid and stearic acid, and the contents of unsaturated fatty acid and linolenic acid were 85.47% and 60074%, respectively. Compared with the conventional hexane extraction method, the ultrasound-assisted hexane extraction method had advantages of high extraction efficiency and low extraction temperature, etc. |
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