Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Key Laboratory of Fruit and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China; College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321000, China.
Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Key Laboratory of Fruit and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China; College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321000, China.
Food Chem. 2021 Apr 16;342:128226. doi: 10.1016/j.foodchem.2020.128226. Epub 2020 Sep 29.
Octenyl succinic anhydride esterified waxy corn starches (OSAS) with five different molecular weights (MWs) were prepared by enzymatic hydrolysis and their effects on naringin solubility were studied. The MW of OSAS was found to significantly influence the amount of naringin embedded in the complex formed by self-aggregation. OSAS with medium MW (M-OSAS) formed complex with the highest naringin entrapment. This system showed an A type water phase solubility curve (indicating a 1:1 stoichiometric inclusion complex) and an increase of 848.83 folds in naringin solubility. Further investigation on the interactions between M-OSAS and naringin using FTIR, XRD, DSC and NMR confirmed the encapsulation of naringin into the inner cavity of M-OSAS. TEM and particle size analysis indicated the complex was spherical in shape, having a mean particle size of 257.07 nm and size distribution of 10-1000 nm. This study has provided a basis for solubility enhancement of citrus flavonoids using OSAS.
用五种不同分子量（MW）的酶解辛烯基琥珀酸酐酯化蜡质玉米淀粉（OSAS），研究其对柚皮苷溶解度的影响。发现 OSAS 的 MW 显著影响自聚集形成的复合物中嵌入的柚皮苷的量。具有中等 MW（M-OSAS）的 OSAS 与柚皮苷形成具有最高柚皮苷包埋的复合物。该体系显示出 A 型水相溶解度曲线（表明 1:1 化学计量的包合络合物），并使柚皮苷溶解度增加了 848.83 倍。使用傅里叶变换红外光谱（FTIR）、X 射线衍射（XRD）、差示扫描量热法（DSC）和核磁共振（NMR）进一步研究 M-OSAS 和柚皮苷之间的相互作用，证实了柚皮苷被包封到 M-OSAS 的内腔中。TEM 和粒径分析表明，该复合物呈球形，平均粒径为 257.07nm，粒径分布为 10-1000nm。这项研究为使用 OSAS 提高柑橘类黄酮的溶解度提供了依据。
