刺葡萄愈伤组织提取物的抗氧化活性分析

    Analysis on the Antioxidant Activity of Callus Extracts from Vitis Davidii

    • 摘要: 以2个刺葡萄愈伤组织细胞系为材料,利用比色和分光光度法测定不同刺葡萄愈伤组织细胞培养物的总抗氧化活性,分析不同培养阶段和肉桂酸、光照条件、黑暗条件、温度(4℃、37℃)、壳聚糖、中波紫外线(UV-B)等不同处理方式对刺葡萄愈伤组织总抗氧化活性的影响。结果表明:不同培养阶段的刺葡萄红色愈伤组织花色苷和非花色苷多酚提取液均具有较强的抗氧化活性,不同培养阶段的刺葡萄红色愈伤组织花色苷提取液抗氧化活性呈双峰,最高可达7.43 U·mg-1(FW),非花色苷多酚提取液抗氧化活性最高达28.36 U·mg-1(FW),而不同培养阶段的浅黄绿色愈伤组织花色苷和非花色苷多酚提取液的抗氧化活性均非常低。经不同处理后的刺葡萄愈伤组织其花色苷和非花色苷多酚提取液总抗氧化活性存在较丰富的变化,4℃处理对于提高红色刺葡萄愈伤组织花色苷提取液抗氧化活性最为有效,而壳聚糖处理可最高效地提高非花色苷多酚提取液的总抗氧化活性。浅黄绿色愈伤组织花色苷和非花色苷多酚提取液抗氧化活性均极低,肉桂酸、光照条件、温度、壳聚糖、UV-B处理对其抗氧化活性几乎没有影响。

       

      Abstract: In this study, by using two callus cell lines of Vitis davidii as the materials, the total antioxidant activities of different callus cell cultures of Vitis davidii were determined by using the colorimetric method and spectrophotometric method, thus to analyze the effects of different culture stages and methods such as cinnamic acid, light conditions, dark conditions, temperature (4℃, 37℃), chitosan and ultraviolet-B (UV-B) on the total antioxidant activity of Vitis davidii callus. The results showed that the anthocyanin and non-anthocyanin polyphenol extracts from the red callus of Vitis davidii at different culture stages had strong antioxidant activities. The antioxidant activity of anthocyanin extracts from the red callus of Vitis davidii at different culture stages showed double peaks, with the maximum value of 7.43 U·mg-1 (FW), and that of non-anthocyanin polyphenol extracts was up to 28.36 U·mg-1 (FW). However,the antioxidant activities of anthocyanin and non-anthocyanin polyphenol extracts from light yellow-green callus at different culture stages were very low. The total antioxidant activities of anthocyanin and non-anthocyanin polyphenol extracts from the callus of Vitis davidii under different treatments had abundant variations. The treatment with temperature of 4℃ was the most effective in improving the antioxidant activity of anthocyanin extracts from the red callus of Vitis davidii, while the treatment with chitosan was the most effective in improving the total antioxidant activity of non-anthocyanin polyphenol extracts. The antioxidant activities of anthocyanin and non-anthocyanin polyphenol extracts from light yellow-green callus were extremely low, and the treatments with cinnamic acid, illumination condition, temperature, chitosan and UVB had little effect on their antioxidant activities.

       

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