脉冲强光处理对花生芽理化指标及白藜芦醇富集的影响

Effect of Intense Pulsed Light on Physicochemical Indexes and Resveratrol Enrichment of Peanut Sprout

以辽宁地区四粒红为试验原料,通过脉冲强光处理诱导花生发芽后,对花生芽的感官特性、理化特性以及白藜芦醇含量等进行分析评价。结果表明,脉冲强光处理使花生芽感官特性得到改善;发芽过程中随着花生芽苗的生长,营养品质也有了显著提升,大分子脂肪和蛋白质含量减少,小分子游离氨基酸增加,灰分和粗纤维含量下降,但与未经处理的空白组无明显差异;脉冲强光处理使花生发芽第1天的白藜芦醇含量剧增,发芽第5天的白藜芦醇含量较种子中的高17.1倍。研究证明利用脉冲强光对花生发芽进行诱变来提高白藜芦醇的富集切实可行,可明显缩短富集时间,提高产量。

In this study,the seeds of peanut variety Silihong from Liaoning Province were treated by intense pulsed light. Then,the sensory characteristics,physicochemical properties,and resveratrol content of the yielded peanut sprouts were analyzed. The result showed that the treatment with intense pulsed light improved the sensory characteristics of peanut sprouts,significantly raised the nutritional quality of peanut sprouts during germination,decreased the content of macromolecules fats and proteins,and increased the content of small molecules free amino acids. Moreover,the content of ash and crude fiber was reduced,but the difference from the blank group(without pulsed light treatment)was insignificant. In addition,under the intense pulsed light treatment,resveratrol content in peanut sprouts surged on the 1st day of germination,and was 17.1 times higher than that in seeds on the 5th day of germination. In conclusion,intense pulsed light treatment on peanut sprout can improve the resveratrol enrichment in peanut sprouts within a significantly shorter period of time and increase the yield.