Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, 47500, Bandar Sunway, Selangor, Malaysia.
World Pranic Healing Foundation, India Research Center, 4th Main, Saraswathipuram, Mysore, 570009, Karnataka, India.
Chemosphere. 2021 Jun;272:129919. doi: 10.1016/j.chemosphere.2021.129919. Epub 2021 Feb 10.
Food processing waste is a potential resource of a variety of bioactive compounds. Carrot peel is a good example of phytonutrient-rich agroindustrial byproducts generated from the processing of carrots. The conventional methods for the extraction of phytonutrients typically involve large volume of organic solvents, complex procedures and expensive equipment. Hence, the development of green and simpler extraction method is advantageous to the valorisation of agroindustrial waste in terms of economic and sustainability. In this study, the applicability of carotene-pectin hydrocolloidal complexation to the co-extraction of carotenoids and pectin from carrot peel waste was evaluated. Carrot peel waste is a potential feedstock for this extraction method because it is rich in carotenoids and pectin, which could form the colloidal complex induced by water. The operating conditions of complexation process were optimized using response surface methodology. The maximum yield and purity of β-carotenes extracted from carrot peel are 1.17 mg/100 g wet sample and 96%, respectively. In comparison to the conventional solvent extraction method, the number of operating steps in carotene-pectin hydrocolloidal complexation is significantly lower and the antioxidant activity of β-carotenes was higher. The carotene-pectin hydrocolloidal complexation method is therefore a green extraction method that enables the valorisation of agricultural waste to recover carotenoids.
食品加工废料是多种生物活性化合物的潜在资源。胡萝卜皮是一种很好的例子，它是从胡萝卜加工过程中产生的富含植物营养素的农业副产品。传统的植物营养素提取方法通常需要大量有机溶剂、复杂的程序和昂贵的设备。因此，开发绿色、更简单的提取方法有利于从经济和可持续性方面对农业废料进行增值。在这项研究中，评估了类胡萝卜素-果胶水溶胶复合作用用于从胡萝卜皮废物中共同提取类胡萝卜素和果胶的适用性。胡萝卜皮废物是这种提取方法的潜在原料，因为它富含类胡萝卜素和果胶，这些物质可以在水中形成胶体复合物。使用响应面法优化了复合过程的操作条件。从胡萝卜皮中提取的β-胡萝卜素的最大收率和纯度分别为 1.17mg/100g 湿样品和 96%。与传统的溶剂萃取法相比，类胡萝卜素-果胶水溶胶复合法的操作步骤明显减少，β-胡萝卜素的抗氧化活性更高。因此，类胡萝卜素-果胶水溶胶复合法是一种绿色提取方法，可实现农业废料的增值，以回收类胡萝卜素。
