Structure and physicochemical properties of amphiphilic agar modified with octenyl succinic anhydride

被引：43

作者：

Chen, Huijing ^{[1
,3
,4
]}

Chen, Fuquan ^{[1
,3
,4
]}

Xiao, Qiong ^{[1
,3
,4
]}

Cai, Menghao ^{[2
]}

Yang, Qiuming ^{[1
,3
,4
]}

Weng, Huifen ^{[1
,3
,4
]}

Xiao, Anfeng ^{[1
,3
,4
]}

机构：

[1] Jimei Univ, Coll Food & Biol Engn, Xiamen 361021, Peoples R China

[2] East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

[3] Natl R&D Ctr Red Alga Proc Technol, Xiamen 361021, Fujian, Peoples R China

[4] Fujian Prov Engn Technol Res Ctr Marine Funct Foo, Xiamen 361021, Fujian, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2021年 / 251卷

基金：

中国国家自然科学基金;

关键词：

Agar; Octenyl succinic anhydride; Characterization; Rheology; FREEZE-THAW STABILITY; PROCESS OPTIMIZATION; KAPPA-CARRAGEENAN; MODIFIED STARCHES; WAXY CORN; PART II; GUM; GELATION; ESTERIFICATION; BEHAVIOR;

D O I：

10.1016/j.carbpol.2020.117031

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

A novel amphiphilic agar with high transparency and freeze-thaw stability was prepared using octenyl succinic anhydride (OSA). Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy confirmed that the hydrophobic OS groups were successfully introduced in OSA-modified agar (OSAR) backbone. The OSAR showed higher emulsion stability and oil loading capacity than the native agar (NA). Compared with gel transparency (47.1 %), syneresis (42.1 %) of NA, OSAR exhibited high gel transparency (80 %) and low syneresis (3.3 %) when the degree of substitution (DS) was 0.06 and 0.12, respectively. Meanwhile, the OSAR showed a decreased interface tension and average molecular weight after modification. Thermogravimetric analysis indicated the thermal stability of OSAR was decreased, while texture profile analysis showed the springiness of the OSAR gel was enhanced. Dynamic rheology measurements revealed the OSAR with low gel strength displayed more liquid-like properties. Moreover, the OSAR exhibited lower turbidity and melting temperatures than the NA.

引用

页数：11

共 63 条

[1]

Synthesis and characterization of octenyl succinic anhydride modified starches for food applications. A review of recent literature [J].