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題 名 | Concentration of n-3 PUFA in Saponified Menhaden Oil by Fractional Solvent Crystallization=以分段式溶劑結晶法濃縮皂化鯡魚油中之n-3 PUFA |
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作 者 | 陳拓成; 朱義旭; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 33:2 2002.03[民91.03] |
頁 次 | 頁143-147 |
分類號 | 466.182 |
關鍵詞 | 分段式溶劑結晶法; 濃縮; 皂化鯡魚油; n-3多元不飽和脂肪酸; Fractional crystallization; EPA; DHA; n-PUFA; Menhaden oil; |
語 文 | 英文(English) |
中文摘要 | 本研究以兩階段低溫溶劑結晶法,濃縮皂化鯡魚油所得自由態脂肪酸(FFA)中之n-3多元不飽和脂肪酸(PUFAs)。以氰化甲烷(acetonitrile)作為第一階段濃縮的溶劑。當溶劑/FFA=60 m/Lg,在-40□下24小時後,於液相濃縮液中可將EPA、DHA及n-3 PUFA由原來的15.45%、9.67%及32.63%分別提升至28.94%、18.36%及60.92%,n-3 PUFA的回收率為90.26%。所第二階段濃縮中,以30%氰化甲烷及70%丙酮之混合物為溶劑。當溶劑/FFA=60 mL/g時,於-80□下24小時後,可將EPA、DHA及n-3 PUFA分別進一步提升至33.85%、21.35%及70.77%,n-3 PUFA回收率為89.03%(總回收率為80.36%)。 |
英文摘要 | A two-stage solvent crystallization process was developed for the enrichment of n-3 polyunsturated fatty acids (PUFAs) in free fatty acids (FFAs) derived from saponified menhaden oil. Acetonitrile was used as the solvent in the first stage of the concentration process. At a ratio of acetontrile to FFAs of 60 mL/g, after 24 h at -40□, the EPA, DHA and total n-3 PUFA contents in the liquid phase could be raised from 15.45%, 9.67% and 32.63% to 28.94, 18.36% and 60.92%, respectively; with a total n-3 PUFA yield of 90.26%. In the second stage, a mixture of 30% acetonitrile and 70% acetone was used as the solvent. At a solvent to FFAs ratio of 60 mL/g, after 24 h at -80□, the EPA, DHA and total n-3 PUFA contents in the liquid phase could be further raised to 33.85%, 21.35% and 70.77%, respectively, with a total n-3 PUFA yield of 89.03% (overall yield 80.36%). |
本系統中英文摘要資訊取自各篇刊載內容。