Effects of intrinsic crystal seed on the structure, morphology, and physicochemical properties of starch microspheres prepared by aqueous two-phase emulsion
Zhirenyong Zhang , Yuyu He , Lisha Zhu , Xiao Luo , Xiaoxue He , Lu Liu , Chaoxi Zeng , Shiyin Guo , Qingming Li , Huiping Xia
{"title":"Effects of intrinsic crystal seed on the structure, morphology, and physicochemical properties of starch microspheres prepared by aqueous two-phase emulsion","authors":"Zhirenyong Zhang , Yuyu He , Lisha Zhu , Xiao Luo , Xiaoxue He , Lu Liu , Chaoxi Zeng , Shiyin Guo , Qingming Li , Huiping Xia","doi":"10.1016/j.foodchem.2025.145049","DOIUrl":null,"url":null,"abstract":"<div><div>Crystal seeds can significantly promote the growth of crystallizable polymer crystals. This study used different crystalline types of starch intrinsic crystal seeds (ICS) as homophase nucleation initiators for starch microspheres in aqueous two-phase emulsion. ICS-containing microspheres exhibited higher pasting temperatures and enthalpy than the control, and they continued pasting over a wider temperature range. XRD and SAXS analyses showed that the ICS significantly increased starch microspheres' crystallinity and structural compactness. Hence, there was a significant reduction in the particle size of the microspheres and a slight decrease in the swelling ability. Microspheres containing ICS emanated distinct polarized crosses under the polarizing microscope and showed a considerable increase in resistance to amylase hydrolysis. In addition, we found that B-type ICS promoted microsphere's ordered structure development better than the other two crystalline types. Therefore, crystal seeds can be applied as a promising strategy to modulate starch microspheres' structural and physicochemical properties.</div></div>","PeriodicalId":318,"journal":{"name":"Food Chemistry","volume":"490 ","pages":"Article 145049"},"PeriodicalIF":9.8000,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Chemistry","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0308814625023003","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Crystal seeds can significantly promote the growth of crystallizable polymer crystals. This study used different crystalline types of starch intrinsic crystal seeds (ICS) as homophase nucleation initiators for starch microspheres in aqueous two-phase emulsion. ICS-containing microspheres exhibited higher pasting temperatures and enthalpy than the control, and they continued pasting over a wider temperature range. XRD and SAXS analyses showed that the ICS significantly increased starch microspheres' crystallinity and structural compactness. Hence, there was a significant reduction in the particle size of the microspheres and a slight decrease in the swelling ability. Microspheres containing ICS emanated distinct polarized crosses under the polarizing microscope and showed a considerable increase in resistance to amylase hydrolysis. In addition, we found that B-type ICS promoted microsphere's ordered structure development better than the other two crystalline types. Therefore, crystal seeds can be applied as a promising strategy to modulate starch microspheres' structural and physicochemical properties.
期刊介绍:
Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.