Insoluble dietary fiber (DF) extracted from carrot pomace was modified by complex enzyme method, ultrafine comminution and high hydrostatic pressure and their structural, physicochemical, and functional properties were evaluated. Results showed that complex enzyme method increased the content of soluble DF to 15.07%, and the cholesterol adsorption capacity peaked; ultrafine comminution greatly improved the total antioxidant activities, DPPH radical scavenging capacity and antioxidant abilities in linoleic acid system of DF; high hydrostatic pressure led to a significant increase in capacities of water retention (7.14 g/g, 600 MPa), water swelling (10.02 mL/g, 500 MPa), oil retention (2.35 g/g, 500 MPa), cation exchange (2.29 mmol/g, 600 MPa), and glucose adsorption (2.634 mmol/g, 400 MPa). Furthermore, SEM showed that surface structures of all modified DF were loose. Overall, three kinds of modification methods have shown their respective advantages. Modified DF from carrot pomace can be applied as a functional ingredient in diverse food products.

利用复合酶法对胡萝卜渣中的不溶性膳食纤维进行了改性，并对其进行了超细粉碎和高静水压试验，并对它们的结构，理化和功能特性进行了评价。结果表明，复合酶法使可溶性DF的含量增加到15.07％，胆固醇的吸附能力达到峰值。超细粉碎大大提高了DF亚油酸体系的总抗氧化活性，DPPH自由基清除能力和抗氧化能力。高静水压力导致保水量（7.14 g / g，600 MPa），水溶胀（10.02 mL / g，500 MPa），保油量（2.35 g / g，500 MPa），阳离子交换（ 2.29mmol / g，600MPa）和葡萄糖吸附（2.634mmol / g，400MPa）。此外，SEM表明，所有改性DF的表面结构都是疏松的。总体而言，三种修改方法已显示出各自的优点。来自胡萝卜果渣的改性DF可以作为功能性成分应用于各种食品中。