Shi Linfan, Li Zhouru, Qing Shiqin, Ren Zhongyang, Li Ping, Li Songnan, Weng Wuyin
College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China.
Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
Food Chem X. 2024 Dec 2;25:102061. doi: 10.1016/j.fochx.2024.102061. eCollection 2025 Jan.
The solid-phase adsorption principles and fundamental mechanism of isobutyric acid, 1-octen-3-ol, and octanal (three key off-odor compounds of oyster peptides) were explored using electrospun octenyl succinylated starch-pullulan (OSS-PUL) nanofiber mat. The nanofiber mats had selective adsorption behaviors as indicated by the selective adsorption rates of isobutyric acid, 1-octen-3-ol, and octanal, which were 94.96%, 85.03%, and 65.36%. The contents of the II-type inclusion complexes (ICs) formed with the nanofiber mats by the three off-odor compounds mentioned above were significantly different. The mean fiber diameter of the octanal/nanofiber mat IC with the highest content of II-type IC was significantly decreased ( < 0.05). In contrast, the isobutyric acid/nanofiber mat IC did not significantly change. The findings suggested that nanofiber mats interacted most strongly with octanal and weakly with isobutyric acid. This study will provide the theoretical foundation for deodorizing aquatic products using electrospun starch-based nanofiber mats.
利用静电纺丝制备的辛烯基琥珀酸酯化淀粉-普鲁兰多糖（OSS-PUL）纳米纤维毡，探究了异丁酸、1-辛烯-3-醇和辛醛（牡蛎肽的三种关键异味化合物）的固相吸附原理及基本机制。通过异丁酸、1-辛烯-3-醇和辛醛的选择性吸附率表明，纳米纤维毡具有选择性吸附行为，其选择性吸附率分别为94.96%、85.03%和65.36%。上述三种异味化合物与纳米纤维毡形成的II型包合物（ICs）的含量存在显著差异。II型IC含量最高的辛醛/纳米纤维毡IC的平均纤维直径显著减小（P<0.05）。相比之下，异丁酸/纳米纤维毡IC没有显著变化。研究结果表明，纳米纤维毡与辛醛的相互作用最强，与异丁酸的相互作用较弱。本研究将为利用静电纺丝淀粉基纳米纤维毡对水产品进行除臭提供理论依据。
