食品科学

• 基础研究 • 上一篇    下一篇

不同品种彩色马铃薯总花色苷含量与总抗氧化活性

殷丽琴,韦献雅,钟 成,章明海,郭世星,牛应泽   

  1. 1.四川农业大学油菜研究中心,四川 成都 611130;2.成都久森农业科技有限公司,四川 成都 610000;
    3.四川农业大学玉米研究所,四川 成都 611130
  • 出版日期:2014-03-15 发布日期:2014-04-04

Total Anthocyanin Content and Total Antioxidant Activities in Different Varieties of Pigmented Potato (Solanum tuberosum L.)

YIN Li-qin, WEI Xian-ya, ZHONG Cheng, ZHANG Ming-hai, GUO Shi-xing, NIU Ying-ze   

  1. 1. Rapeseed Research Center, Sichuan Agricultural University, Chengdu 611130, China;
    2. Chengdu Jon Sun Agricultural Science and Technology Limited Company, Chengdu 610000, China;
    3. Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China
  • Online:2014-03-15 Published:2014-04-04

摘要:

以10 个彩色马铃薯品种为实验材料,采用pH示差法测量其总花色苷含量、1,1-二苯基-2-三硝基苯肼(2, 2-diphenyl-1-picrylhydrazyl,DPPH)法分析其总抗氧化活性,比较不同品种的彩色马铃薯的总花色苷含量和总抗氧化活性。结果表明:不同品种的彩色马铃薯的表皮、薯肉、整薯总花色苷含量的变化范围分别为59.67~293.57 mg/100 g、0~56.11 mg/100 g、1.34~63.32 mg/100 g;表皮、薯肉、整薯抗坏血酸当量(ascorbic acidequivalent antioxidant capacity,AEAC)的变化范围分别为2.74~6.43 mg/g、0.50~1.39 mg/g、0.65~1.50 mg/g。其中,紫云1号的总花色苷含量和总抗氧化活性均为最高;S05-603的总花色苷含量最低;S03-2677的总抗氧化活性最低。此外,整薯总花色苷含量与总抗氧化活性的正相关性极显著(P<0.01)。

关键词: 彩色马铃薯, 花色苷, 花青素, pH示差法, DPPH法, 抗坏血酸当量, 抗氧化活性

Abstract:

Pigmented potato (Solanum tuberosum L.) is one of the major sources of anthocyanins, which possess highantioxidant activity. The total anthocyanins content (TAC) of 10 pigmented potato varieties were measured by pH differentialmethod and the total antioxidant activities were measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The resultsshowed that the TACs of potato peel, potato flesh and whole potato were in the ranges of 59.67–293.57, 0–56.11 and 1.34–63.32mg/100 g, respectively. The ascorbic acid equivalent antioxidant capacity (AEAC) of potato peel, potato flesh and whole potatowas in the ranges of 2.74–6.43, 0.50–1.39 and 0.65–1.50 mg/g, respectively. The cultivar Ziyun 1 contained the highest TACand AEAC, while the cultivars S05-603 and S03-2677 had the lowest TAC and AEAC, respectively. In addition, the correlationbetween total anthocyanin content and total antioxidant activity of whole pigmented potato was extremely significantly positive (P < 0.01).

Key words: pigmented potato, anthocyanin, anthocyanidin, pH differential method, DPPH method, ascorbic acid equivalent antioxidant capacity (AEAC), antioxidant activity