Effects of drying methods on the phytochemicals contents and antioxidant properties of chrysanthemum flower heads harvested at two developmental stages
Effects of drying methods on the phytochemicals contents and antioxidant properties of chrysanthemum flower heads harvested at two developmental stages
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DOI：
10.1016/j.jff.2015.10.008
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发表时间：
2015-12-01
影响因子：
5.6
通讯作者：
Qin, Min-Jian
中科院分区：
文献类型：
--
作者：
Yuan, Jun;Hao, Li-Jun;Qin, Min-Jian
菊花头是一种中药，也可作为功能性食品原料。研究了不同干燥工艺对“小白菊”和“泰菊”生物活性物质含量和抗氧化活性的影响。对两种采收材料分别进行低、中、高3个水平的晒干、阴干和烘干处理。HPLC（高效液相色谱法）方法被用来同时定量八种生物活性化合物。体外抗氧化活性测定。结果表明，烘箱干燥具有较快的干燥速率。干燥工艺对活性成分含量和抗氧化性能有显著影响。建议小白菊的适宜干燥工艺为60 ℃烘干，泰菊为70 ℃烘干。充分干燥的样品能够清除DPPH（1，1-二苯基-2-苦肼基）和O-2（中心点-），抑制亚油酸氧化。结果还表明，“太菊”比“小白菊”具有更好的功能功效。(C)2015爱思唯尔有限公司版权所有。
The dried flower head of chrysanthemum is a Chinese medicine, and also used as functional food material. The effects of different drying processes on the bioactive chemical contents and antioxidant activities of 'Xiaobaiju' and 'Taiju' were examined. Two kinds of harvest materials were handled with sun-dried, shade-dried or oven-dried at low, middle and high levels. An HPLC (high performance liquid chromatography) method was used to simultaneously quantify eight bioactive compounds. The antioxidant activities were assayed in vitro. The results showed that oven-drying had faster drying rate. The drying processes had significant effects on the contents of bioactive constituents and antioxidant properties. The appropriate drying process was suggested to be oven-dried at 60 degrees C for 'Xiaobaiju' and 70 degrees C for 'Taiju'. The sufficient dried samples were capable of scavenging DPPH (1,1-dipheny1-2-picrylhydrazyl) and O-2(center dot-), inhibiting linoleic acid oxidation. The results also implied that 'Taiju' possesses better functional effectiveness than 'Xiaobaiju'. (C) 2015 Elsevier Ltd. All rights reserved.