{"title":"从浓缩乳清蛋白(WPC 70)中分离和纯化牛 N-聚糖","authors":"Xinyi Wu, Qiuqi Peng, Yi Chai, Mengqi Wang, Hongbo Li, Hongjuan Li, Chao Li, Jinghua Yu","doi":"10.1111/1471-0307.13134","DOIUrl":null,"url":null,"abstract":"N‐glycans present in milk glycoproteins (e.g. lactoferrin and immunoglobulin G) can provide infants with nutritional and protective effects similar to breast milk. In this study, we enriched N‐glycoproteins from WPC 70 using ultrafiltration and anion exchange chromatography on DEAE Sepharose Fast Flow column, with N‐glycan content and N‐glycoprotein purity as evaluation indicators. The results showed that changing feed flow rate and molecular weight cut‐off was more effective to improve ultrafiltration separation than changing feed concentration. When using a 100 kDa ultrafiltration membrane with a feed flow rate of 10 rpm and a feed concentration of 10 mg/mL, N‐glycan content could be increased by 200%. However, anion exchange chromatography was more efficient for purification, increasing N‐glycan content by 700%. This study provided a reliable method for N‐glycan enrichment and a scientific basis for further research and potential application of N‐glycans in infant formula and whey products.","PeriodicalId":13822,"journal":{"name":"International Journal of Dairy Technology","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Isolation and purification of bovine N‐glycans from whey protein concentrate (WPC 70)\",\"authors\":\"Xinyi Wu, Qiuqi Peng, Yi Chai, Mengqi Wang, Hongbo Li, Hongjuan Li, Chao Li, Jinghua Yu\",\"doi\":\"10.1111/1471-0307.13134\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"N‐glycans present in milk glycoproteins (e.g. lactoferrin and immunoglobulin G) can provide infants with nutritional and protective effects similar to breast milk. In this study, we enriched N‐glycoproteins from WPC 70 using ultrafiltration and anion exchange chromatography on DEAE Sepharose Fast Flow column, with N‐glycan content and N‐glycoprotein purity as evaluation indicators. The results showed that changing feed flow rate and molecular weight cut‐off was more effective to improve ultrafiltration separation than changing feed concentration. When using a 100 kDa ultrafiltration membrane with a feed flow rate of 10 rpm and a feed concentration of 10 mg/mL, N‐glycan content could be increased by 200%. However, anion exchange chromatography was more efficient for purification, increasing N‐glycan content by 700%. This study provided a reliable method for N‐glycan enrichment and a scientific basis for further research and potential application of N‐glycans in infant formula and whey products.\",\"PeriodicalId\":13822,\"journal\":{\"name\":\"International Journal of Dairy Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Dairy Technology\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1111/1471-0307.13134\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"FOOD SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Dairy Technology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1111/1471-0307.13134","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Isolation and purification of bovine N‐glycans from whey protein concentrate (WPC 70)
N‐glycans present in milk glycoproteins (e.g. lactoferrin and immunoglobulin G) can provide infants with nutritional and protective effects similar to breast milk. In this study, we enriched N‐glycoproteins from WPC 70 using ultrafiltration and anion exchange chromatography on DEAE Sepharose Fast Flow column, with N‐glycan content and N‐glycoprotein purity as evaluation indicators. The results showed that changing feed flow rate and molecular weight cut‐off was more effective to improve ultrafiltration separation than changing feed concentration. When using a 100 kDa ultrafiltration membrane with a feed flow rate of 10 rpm and a feed concentration of 10 mg/mL, N‐glycan content could be increased by 200%. However, anion exchange chromatography was more efficient for purification, increasing N‐glycan content by 700%. This study provided a reliable method for N‐glycan enrichment and a scientific basis for further research and potential application of N‐glycans in infant formula and whey products.
期刊介绍:
The International Journal of Dairy Technology ranks highly among the leading dairy journals published worldwide, and is the flagship of the Society. As indicated in its title, the journal is international in scope.
Published quarterly, International Journal of Dairy Technology contains original papers and review articles covering topics that are at the interface between fundamental dairy research and the practical technological challenges facing the modern dairy industry worldwide. Topics addressed span the full range of dairy technologies, the production of diverse dairy products across the world and the development of dairy ingredients for food applications.