监测环保型加工葡萄渣在储存过程中的抗氧化活性。
Monitoring the antioxidant activity of an eco-friendly processed grape pomace along the storage.
机构信息
Department of Agronomy, Food, Natural Resources, Animals, and Environment - DAFNAE, University of Padova, Legnaro, Italy.
Department of Biotechnology, University of Verona, Verona, Italy.
出版信息
Nat Prod Res. 2021 Dec;35(24):6030-6033. doi: 10.1080/14786419.2020.1815741. Epub 2020 Sep 2.
The aims of this research are to compare and to monitor two conditions for preserving the total phenolic content (TPC) and the antioxidant activity (AOA) of grape pomace (GP) processed as powder and its corresponding extract at room and freezing temperature, respectively. The highest TPC and AOA were obtained in the GP extracted in a ratio 1:10 (w/v) with ethanol at 50% for 45 min at 50 °C. After 9 months of room temperature (RT) storage, the GP powder obtained a significantly higher AOA than the initial condition and the extract frozen-stored the same time.
本研究旨在比较和监测两种条件下分别保存葡萄籽粉（GP）及其相应提取物的总酚含量（TPC）和抗氧化活性（AOA）：一种是室温下的粉末状态，另一种是冷冻状态。在 50°C 下用 50%乙醇以 1:10（w/v）的比例提取 45 分钟，得到的 GP 提取物具有最高的 TPC 和 AOA。在室温（RT）储存 9 个月后，与初始条件相比，GP 粉末的 AOA 显著提高，而在相同时间冷冻保存的提取物则降低了。
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