以枸杞为研究对象，进行常规打浆和低氧打浆，打浆后再进行超高压和热处理，比较常规打浆与低氧打浆以及不同打浆联合杀菌方式对枸杞原浆品质的影响及4 ℃贮藏期间各指标变化。结果显示，低氧打浆后，果浆a值、b值分别提高了38.94%和16.76%，总酚含量提高了4.62%，ABTS+•清除能力提高了38.2%，铁还原能力（FRAP）提高了8.35%，说明低氧打浆处理能更好的保护枸杞原浆颜色、总酚和抗氧化活性。低氧打浆联合杀菌处理组枸杞原浆的a值b值均显著高于常规打浆联合杀菌处理组，说明低氧打浆后再杀菌能更好的保护枸杞原浆颜色；贮藏期间，四种杀菌处理的a值、b值均呈现下降趋势，低氧打浆联合超高压处理组a值、b值始终高于其它三组，说明贮藏期间低氧打浆联合超高压处理对果浆色泽的保护效果最佳；贮藏期结束时，低氧打浆联合超高压处理组总酚含量为279.40 mg GAE/kg，ABTS+•为5.76 mmol Trolox/kg，FRAP为 15.87 mmol Trolox/kg，均优于其它三组。综上，低氧打浆联合超高压处理更具优势，可作为一种新型枸杞原浆加工技术。

Lycium barbarum was sterilized by conventional beating and low-oxygen beating and then treated with high hydrostatic pressure and heat. The effects of conventional beating, low-oxygen beating, and different combinations of sterilization methods on the quality of L. barbarum pulp and the changes in various indexes during storage at 4 ℃ were compared. After low-oxygen beating, the a and b values of the pulp increased by 38.94% and 16.76%, respectively; the total phenolics content increased by 4.62%, the ABTS+•scavenging ability increased by 38.2%, and the iron reduction ability (FRAP) increased by 8.35%, indicating that low-oxygen beating can better protect the color, total phenolics content, and antioxidant activity of L. barbarum pulp. The a and b values of L. barbarum pulp in the low-oxygen beating combined with sterilization treatment group were significantly higher than those of pulp in the conventional beating combined with sterilization treatment group, indicating that low-oxygen beating followed by sterilization can better protect the color of L. barbarum pulp. During storage, the a and b values for the four sterilization treatments showed a downward trend; however, the values for low-oxygen beating combined with high hydrostatic pressure treatment were always higher than those for the other three groups, indicating that this treatment had the best protective effect on the color of fruit pulp during storage. At the end of the storage period, the total phenolics content of the low-oxygen beating combined with high hydrostatic pressure treatment group was 279.40 mg GAE/kg, the ABTS+•value was 5.76 mmol Trolox/kg, and the FRAP value was 15.87 mmol Trolox/kg, which was higher than those of the other three groups. In summary, low-oxygen beating combined with high hydrostatic pressure treatment is more advantageous and can be used as a new type of L. barbarum pulp processing technology.

国家重点研发计划项目（2019YFD1002300）；广东省农业科学院“十四五”农业优势产业学科团队（202109TD）