{"title":"Assembly of chitooligosaccharide-citrate-pectin complexes and use in fruit juice","authors":"Liping Fan, Wenjuan Jiao, Huangkai Guo, Mufan Yang, Binquan Liang, Zhiwei Liu","doi":"10.1007/s13197-024-06093-y","DOIUrl":null,"url":null,"abstract":"<div><p>When chitooligosaccharide (COS) is added to fruit juice as a functional ingredient, citrate in the juice causes undesirable precipitation of a COS-pectin is complex. We assessed the interaction of COS, pectin, and citrate in fruit juice to provide a reference for the use of chitooligosaccharide in fruit juices. A high COS concentration and a small amount of citrate caused formation of a precipitate; at 10 mM citrate, the turbidity of the solution was highest, 59.96% (<i>r</i> = 0.6; <i>p</i> < 0.05). By Fourier-transform infrared spectroscopy and scanning electron microscopy, we determined that there were electrostatic interactions and hydrogen bonds between COS, citrate, and pectin, with competition between citrate and pectin for COS. To minimize precipitation, the data showed that COS should not exceed 0.2% in solution with 0.2% pectin at pH 4. Precipitation could be reduced by addition of 30 ~ 50 mM citrate, and COS should be less than 0.06% (w/v) when used in commercial juice. The taste of the juice will be maintained without affecting the antibacterial and antiseptic properties of COS. Our findings will promote the development of functional COS fruit juice.</p></div>","PeriodicalId":632,"journal":{"name":"Journal of Food Science and Technology","volume":"62 6","pages":"1089 - 1100"},"PeriodicalIF":2.7010,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Food Science and Technology","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1007/s13197-024-06093-y","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
When chitooligosaccharide (COS) is added to fruit juice as a functional ingredient, citrate in the juice causes undesirable precipitation of a COS-pectin is complex. We assessed the interaction of COS, pectin, and citrate in fruit juice to provide a reference for the use of chitooligosaccharide in fruit juices. A high COS concentration and a small amount of citrate caused formation of a precipitate; at 10 mM citrate, the turbidity of the solution was highest, 59.96% (r = 0.6; p < 0.05). By Fourier-transform infrared spectroscopy and scanning electron microscopy, we determined that there were electrostatic interactions and hydrogen bonds between COS, citrate, and pectin, with competition between citrate and pectin for COS. To minimize precipitation, the data showed that COS should not exceed 0.2% in solution with 0.2% pectin at pH 4. Precipitation could be reduced by addition of 30 ~ 50 mM citrate, and COS should be less than 0.06% (w/v) when used in commercial juice. The taste of the juice will be maintained without affecting the antibacterial and antiseptic properties of COS. Our findings will promote the development of functional COS fruit juice.
期刊介绍:
The Journal of Food Science and Technology (JFST) is the official publication of the Association of Food Scientists and Technologists of India (AFSTI). This monthly publishes peer-reviewed research papers and reviews in all branches of science, technology, packaging and engineering of foods and food products. Special emphasis is given to fundamental and applied research findings that have potential for enhancing product quality, extend shelf life of fresh and processed food products and improve process efficiency. Critical reviews on new perspectives in food handling and processing, innovative and emerging technologies and trends and future research in food products and food industry byproducts are also welcome. The journal also publishes book reviews relevant to all aspects of food science, technology and engineering.