辛烯基丁二酸酐改性桃胶多糖的制备、性能及乳化性能

IF 8.5 1区化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY

International Journal of Biological Macromolecules Pub Date : 2025-04-08 DOI:10.1016/j.ijbiomac.2025.142952

Chuan Chen , Yun-Cheng Li , Fan-Bing Meng, Han-Jia Lv, Yi-Xiao Zhang, Yong-Qi Luo

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引用次数: 0

摘要

本研究制备了不同取代率（0.93 % ~ 2.02 %）的辛烯基丁二酸酐改性桃胶多糖（OSPG），并对其性能进行了评价。FTIR光谱显示OSPG谱在1726 cm−1和1569 cm−1处有两个新峰。1H NMR表明，OSPG在0.7 ~ 3.0 ppm和5.3 ~ 5.5 ppm范围内存在多个辛烯基琥珀酸酐（OSA）特征峰。FTIR和1H NMR证实了接枝改性的成功。热重曲线显示，在第二阶段，OSPG的热分解温度高于桃胶多糖（PGP）。与PGP相比，OSPG溶液的粒径和zeta电位绝对值也有所增加。改性后的PGP乳化活性由30.67 %提高到77 %，3 个月后OSPG乳液仍保持良好的乳化稳定性。经PGP稳定的姜黄素乳液包封率为69.49% %，经OSPG稳定的姜黄素乳液包封率为80.99 %。综上所述，具有亲水性和疏水性基团的ospg都可以作为乳化剂，在长时间的储存期间表现出优异的乳液稳定性，可以用于包封亲脂性生物活性物质。

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Preparation, properties and emulsifying capacity of octenyl succinic anhydride modified peach gum polysaccharide

In this study, octenyl succinic anhydride modified peach gum polysaccharide (OSPG) with different substitution rate (0.93 % to 2.02 %) were prepared and their properties were assessed. FTIR spectroscopy showed two new peaks for OSPG spectrum at 1726 cm⁻¹ and 1569 cm⁻¹, respectively. ¹H NMR showed that OSPG showed many octenyl succinic anhydride (OSA) characteristic peaks in the range of 0.7–3.0 ppm and 5.3–5.5 ppm. FTIR and ¹H NMR confirmed the success of grafting modification. The TG curves showed the thermal decomposition temperature of the OSPG was higher than peach gum polysaccharide (PGP) in the second stage. Compared with PGP, the particle size and the absolute value of the zeta potential of OSPG solutions also increased. The emulsifying activity of PGP increased from 30.67 % to 77 % after modification and the OSPG emulsion still showed good emulsifying stability after 3 months. The encapsulation efficiency of the curcumin emulsion was increasing from 69.49 % stabilized by of PGP to 80.99 % stabilized by OSPG. Overall, OSPGs with both hydrophilic and hydrophobic groups can serve as emulsifiers, exhibit excellent emulsion stability during prolonged storage periods, and can be utilized for encapsulating lipophilic bioactive substances.

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来源期刊

International Journal of Biological Macromolecules 生物-生化与分子生物学

CiteScore

13.70

自引率

9.80%

发文量

2728

审稿时长

64 days

期刊介绍： The International Journal of Biological Macromolecules is a well-established international journal dedicated to research on the chemical and biological aspects of natural macromolecules. Focusing on proteins, macromolecular carbohydrates, glycoproteins, proteoglycans, lignins, biological poly-acids, and nucleic acids, the journal presents the latest findings in molecular structure, properties, biological activities, interactions, modifications, and functional properties. Papers must offer new and novel insights, encompassing related model systems, structural conformational studies, theoretical developments, and analytical techniques. Each paper is required to primarily focus on at least one named biological macromolecule, reflected in the title, abstract, and text.