Enhancing the Emulsification and Photostability Properties of Pectin from Different Sources Using Genipin Crosslinking Technique.
Enhancing the Emulsification and Photostability Properties of Pectin from Different Sources Using Genipin Crosslinking Technique.
复制标题
DOI：
10.3390/foods11162392
复制
发表时间：
2022-08-09
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
果胶是一种潜在的基于多糖的乳化剂，但稳定的乳液遭受不足的乳液稳定性。因此，需要对其进行改性以提高其乳化性能，以满足实际应用的需要。采用京尼平交联法对不同来源、不同提取条件的果胶进行改性。化学组成分析、分子量（Mw）和回转半径（Rg）的测量表明，甜菜果胶（SBP）具有比商业柑橘果胶（CP）和苹果果胶（AP）更紧凑和柔性的构象，SBP（18.1-11.3 kg/mol/nm）的Mw/Rg显著（p < 0.05）大于CP（8.3 kg/mol/nm）和AP（8.0 kg/mol/nm）。交联改性显著增加了分子量、回转半径和粘度。这显著（p < 0.05）改善了乳化稳定性（液滴尺寸的较小增加），这是由于油-水界面处较厚的吸附水合层具有较强的空间位阻效应和较大的粘度效应，以减缓液滴碰撞。交联反应生成的蓝黑色物质能够阻挡紫外线，显著提高了β-胡萝卜素乳液的光稳定性。总之，京尼平交联对不同来源的果胶进行改性以增强乳液稳定性并用作递送生物活性化合物的载体是可行的。
Pectin is a potential polysaccharide-based emulsifier, but the stabilized emulsions suffer from insufficient emulsion stability. Therefore, modification is needed to enhance its emulsification performance to cater to practical applications. The genipin-crosslinking strategy was used in this work to modify pectin with different sources and extraction conditions. Chemical composition analysis, molecular weight (Mw), and radius of gyration (Rg) measurement revealed that sugar beet pectin (SBP) has a more compact and flexible conformation than commercial citrus pectin (CP) and apple pectin (AP), indicated by the significantly (p < 0.05) larger Mw/Rg of SBP (18.1–11.3 kg/mol/nm) than CP (8.3 kg/mol/nm) and AP (8.0 kg/mol/nm). Crosslinking modification significantly increased the Mw, radius of gyration, and viscosity. This significantly (p < 0.05) improved the emulsifying stability (a smaller increase in droplets size) by the contribution of both thicker adsorbed hydrated layers at the oil-water interface with a stronger steric-hindrance effect and larger viscosity effect to slow down droplet collision. The formation of a blue-black substance from crosslinking reaction was able to block the UV radiation, which significantly improved the photostability of β-carotene-loaded emulsions. Altogether, genipin-crosslinking is feasible to modify pectin of different sources to enhance the emulsion stability and for use as a vehicle for delivering bioactive compounds.
登录
查看更多内容
京尼平增强珍珠母蒙脱石壳聚糖薄膜，具有优异的机械和紫外线阻挡性能
影响因子：
9.1
作者：
Liang, Benliang;Shu, Yingqi;Yin, Penggang
通讯作者：
Yin, Penggang
影响因子：
10.7
作者：
Funami, Takahiro;Nakauma, Makoto;Phillips, Glyn O.
通讯作者：
Phillips, Glyn O.
影响因子：
10.7
作者：
Nakauma, Makoto;Funami, Takahiro;Phillips, Glyn O.
通讯作者：
Phillips, Glyn O.
影响因子：
10.7
作者：
Lin, Jiawei;Guo, Xiaoming;Yu, Shujuan
通讯作者：
Yu, Shujuan
DOI：
10.1016/j.ifset.2021.102836
发表时间：
2021-10-28
影响因子：
6.6
作者：
Jalali-Jivan, Mehdi;Fathi-Achachlouei, Bahram;Jafari, Seid Mahdi
通讯作者：
Jafari, Seid Mahdi