J Microencap:槲皮素可用于食物

2017-08-28 佚名 medicalxpress

槲皮素是一种称为黄酮的植物色素,是我们饮食中最丰富的抗氧化剂之一。实验室研究表明,除了成为有效的抗氧化剂之外,它还可以具有一系列有益效果,包括抗癌,抗肥胖,抗炎和抗菌等特性。

根据新加坡的新研究,在巴西棕榈蜡中包裹抗氧化剂槲皮素可以掩盖其苦味,使其能够在广泛的食品中使用。

槲皮素是一种称为黄酮的植物色素,是我们饮食中最丰富的抗氧化剂之一。实验室研究表明,除了成为有效的抗氧化剂之外,它还可以具有一系列有益效果,包括抗癌,抗肥胖,抗炎和抗菌等特性。

然而,将槲皮素掺入强化食品的机会受到其苦味的限制。在温和或甚至令人愉快的涂层中包裹槲皮素颗粒可以提供一种掩盖味道的方法。

“我们认为掩盖口味是我们面临的挑战,以确保这不会在错误的时间,错误的地方,错误的数量和微胶囊化中被释放,我们自然地解决了这个问题,”WaiKiongNg说道。

该组织确定了可以作为外涂层使用的三种物质:来自巴西棕榈树的巴西棕榈蜡,虫胶-由被称为lacbug的昆虫种类分泌的天然树脂,以及来自玉米面筋的水不溶性蛋白质玉米蛋白。这些产品已经广泛应用于食品和制药行业,但是团队需要找出哪些选择在口中保持完好,掩盖槲皮素的味道,但溶解在胃肠道内的材料。

微胶囊化方法包括将槲皮素粉末与巴西棕榈蜡粉,虫胶或玉米醇溶蛋白混合,然后将粉末加入称为热熔挤出机的加热装置中。

必须控制热熔挤出机的温度以充分熔化产物以涂覆槲皮素粉末,而不改变槲皮素的化学性质。然后将所得混合物冷却并研磨。

然后,该团队测试了涂层材料在设计用于模拟胃肠道条件的溶液中的表现。他们发现巴西棕榈蜡-微胶囊槲皮素粉末在口中保持完整,但在胃的酸性环境中仍然很好地溶解。

通过电子味道传感器的测试显示,巴西棕榈蜡涂层产品几乎具有中性味道,经周伟彪在新加坡国立大学食品科学与技术系的小组品尝槲皮素强化面包得到验证。这为微囊化的槲皮素用于诸如面包和粉末饮料的产品铺平了道路。

原始出处:

CM Khor, WK Ng, P Kanaujia,et.al. Hot-melt extrusion microencapsulation of quercetin for taste-masking. Journal of Microencapsulation 2017 :1-28

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    2018-04-25 xjy02
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    2018-05-24 smlt2008
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    2017-09-08 虈亣靌

    临床医药学的一大进步啊

    0

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    2017-08-28 天涯183

    非常好的文章.学习了

    0

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