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首页> 外文期刊>RSC Advances >Physicochemical properties and in vitro bioaccessibility of lutein loaded emulsions stabilized by corn fiber gums
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Physicochemical properties and in vitro bioaccessibility of lutein loaded emulsions stabilized by corn fiber gums

机译：玉米纤维胶稳定的叶黄素负载乳液的理化性质和体外生物可及性

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Lutein is a natural colorant and functional ingredient with many health-promoting bioactivities. However, its use in functional foods is limited due to its low water-solubility and chemical instability. The objectives of this study were to investigate the physicochemical properties and in vitro bioaccessibilities of lutein loaded emulsions stabilized by corn fiber gums (CFG1 and CFG2). The physicochemical properties and stabilities of the emulsions were evaluated by droplet size and distribution, ζ-potential, viscosity, visual observation of phase separation, and lutein retention during storage. The lutein bioaccessibilities of the emulsions were measured after digestion in a simulated gastrointestinal tract (SGT). The results showed that CFG2 had better emulsifying capacity and stability than CFG1. Compared to lutein dispersed in corn oil, the chemical stability and in vitro bioaccessibility of lutein in the emulsions were significantly increased through emulsification. These results suggest that corn fiber gum is a promising natural emulsifier, which has potential to fabricate emulsions for delivering lutein or other lipophilic bioactive compounds in functional foods.
机译：叶黄素是一种天然色素和功能性成分，具有许多促进健康的生物活性。然而，由于其低的水溶性和化学不稳定性，其在功能性食品中的使用受到限制。这项研究的目的是研究玉米纤维胶（CFG1和CFG2）稳定的叶黄素负载乳液的理化性质和体外生物利用度。通过液滴的大小和分布，ζ电位，粘度，相分离的目测观察以及叶黄素在储存过程中的保留，来评估乳液的理化性质和稳定性。在模拟胃肠道（SGT）中消化后，测量乳剂的叶黄素生物利用度。结果表明，CFG2具有比CFG1更好的乳化能力和稳定性。与分散在玉米油中的叶黄素相比，乳化液中叶黄素的化学稳定性和体外生物利用度显着提高。这些结果表明，玉米纤维胶是一种有前途的天然乳化剂，它具有制造乳状液以在功能食品中输送叶黄素或其他亲脂性生物活性化合物的潜力。

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