摘要
以菜籽多肽粗品为研究对象,利用粉末活性炭进行脱色处理后,将多肽溶液吸附聚集到DA201-C大孔吸附树脂上,经乙醇解吸后,得到菜籽精制多肽(RP75)。并分析了菜籽精制多肽(RP75)的基本组成、抗血栓活性、抗炎活性以及氨基酸组成特性。结果表明,DA201-C大孔吸附树脂精制的最适工艺是多肽浓度30mg/mL,流速3BV/h,pH 4.5,乙醇解吸浓度75%。精制后菜籽多肽(RP75)的肽含量为74.94%,抗营养因子植酸、硫苷均未检出,有丰富氨基酸组成,并具有良好的抗血栓活性(IC_(50)=8.82mg/mL)和抗炎活性(IC_(50)=0.80mg/mL),可以作为一种潜在促进健康的可食用功能性产品。
In this study,the crude rapeseed peptide was used as the research object.After treatment with powdered activated carbon,peptide solution was adsorbed onto DA201-C macroporous adsorption resin and then desorbed by ethanol to obtain rapeseed refined peptides(RP75).The basic composition,antithrombotic activity,anti-inflammatory activity and amino acid composition of rapeseed refined peptides(RP75)were also analyzed.The results showed that the optimum process for the refining of the DA201-C macroporous adsorption resin were peptide concentration 30 mg/mL,flow rate 3 BV/h,pH 4.5 and desorption concentration of the ethanol 75%.Peptide content was 74.94%,no glucosinolate or phytic acid was detected in RP75.On the other hand,RP75 contained rich amino acids and exhibited excellent bioactivities including anti-thrombotic and anti-inflammatory activities with IC_(50) values of 8.82 mg/mL and 0.80 mg/mL.These results indicated that RP75 could be used as a potential health promoting ingredient with functional activity.
引文
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