模擬移動床色譜分離純化綠豆ACE抑制肽
發(fā)布時間:2018-08-19 12:29
【摘要】:模擬移動床(Simulated Moving Bed,SMB)色譜多被用于二元糖混合物、二甲苯異構(gòu)體等化學(xué)成分的大批量分離。本文采用SMB技術(shù)產(chǎn)業(yè)化分離具有較高血管緊張素轉(zhuǎn)化酶(ACE)抑制活性的綠豆肽。以ACE抑制活性和收率為指標,分析SMB系統(tǒng)中不同操作參數(shù)對產(chǎn)業(yè)化分離綠豆肽效率的影響,并采用二維納升液質(zhì)譜聯(lián)用技術(shù)(2D-nano LC-MS/MS)分析高活性綠豆ACE抑制肽的氨基酸序列。結(jié)果表明:采用SMB技術(shù)可實現(xiàn)高活性綠豆ACE抑制肽的產(chǎn)業(yè)化分離。通過調(diào)整各區(qū)流速提高產(chǎn)品的活性和收率。在進樣流速9 m L/min,水洗脫1流速19 m L/min,醇洗脫流速11 m L/min,水洗脫2流速19 m L/min條件下,分離得到的綠豆肽ACE抑制率為95.32%,其收率86%。將分離的高活性綠豆ACE抑制肽進行質(zhì)譜分析,得出其氨基酸序列分別為Phe-LeuVal-Asn-Arg-Ile(885.1 u)、Phe-Leu-Val-Asn-Pro-Asp-Asp(961.06 u)、Lys-Asp-Asn-Val-Ile-Ser-GluLeu(1 043.13 u)。
[Abstract]:The simulated moving bed (Simulated Moving BedSMB) chromatography is used for the mass separation of binary sugar mixtures and xylene isomers. Mungbean peptides with high inhibitory activity of angiotensin converting enzyme (ACE) were isolated by SMB technique. The inhibitory activity and yield of ACE were used to analyze the effect of different operating parameters on the efficiency of industrial separation of mung bean peptide in SMB system. The amino acid sequence of high active mung bean ACE inhibitory peptide was analyzed by 2D-nano LC-MS/MS. The results showed that the industrial separation of high activity mung bean ACE inhibitory peptide could be realized by using SMB technique. The activity and yield of the product were improved by adjusting the flow rate of each region. Under the conditions of injection velocity of 9 mL / min, water flow rate of 19 mL / min, alcohol flow rate of 11 mL / min and water elution flow rate of 19 m L/min, the inhibitory rate of mung bean peptide ACE was 95.32 and the yield was 86%. The ACE inhibitory peptide of mung bean was analyzed by mass spectrometry, and the amino acid sequence was obtained as Phe-LeuVal-Asn-Arg-Ile (885.1 u) Phe-Leu-Val-Asn-Pro-Asp-Asp (961.06 u) Lys-Asp-Asn-VIle-Ser-GluLeu (1 043.13 u).
【作者單位】: 黑龍江八一農(nóng)墾大學(xué)國家雜糧工程技術(shù)研究中心;黑龍江八一農(nóng)墾大學(xué)食品學(xué)院;
【基金】:國家自然科學(xué)基金項目(31471586) 黑龍江省青年自然科學(xué)基金項目(QC2014C019)
【分類號】:O652.63;TQ464.7
本文編號:2191652
[Abstract]:The simulated moving bed (Simulated Moving BedSMB) chromatography is used for the mass separation of binary sugar mixtures and xylene isomers. Mungbean peptides with high inhibitory activity of angiotensin converting enzyme (ACE) were isolated by SMB technique. The inhibitory activity and yield of ACE were used to analyze the effect of different operating parameters on the efficiency of industrial separation of mung bean peptide in SMB system. The amino acid sequence of high active mung bean ACE inhibitory peptide was analyzed by 2D-nano LC-MS/MS. The results showed that the industrial separation of high activity mung bean ACE inhibitory peptide could be realized by using SMB technique. The activity and yield of the product were improved by adjusting the flow rate of each region. Under the conditions of injection velocity of 9 mL / min, water flow rate of 19 mL / min, alcohol flow rate of 11 mL / min and water elution flow rate of 19 m L/min, the inhibitory rate of mung bean peptide ACE was 95.32 and the yield was 86%. The ACE inhibitory peptide of mung bean was analyzed by mass spectrometry, and the amino acid sequence was obtained as Phe-LeuVal-Asn-Arg-Ile (885.1 u) Phe-Leu-Val-Asn-Pro-Asp-Asp (961.06 u) Lys-Asp-Asn-VIle-Ser-GluLeu (1 043.13 u).
【作者單位】: 黑龍江八一農(nóng)墾大學(xué)國家雜糧工程技術(shù)研究中心;黑龍江八一農(nóng)墾大學(xué)食品學(xué)院;
【基金】:國家自然科學(xué)基金項目(31471586) 黑龍江省青年自然科學(xué)基金項目(QC2014C019)
【分類號】:O652.63;TQ464.7
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