Akbari Mohammad, Farajpour Mostafa, Aalifar Mostafa, Sadat Hosseini Mohammad
a Faculty of Agriculture, Department of Horticultural Sciences , University of Tabriz , Tabriz , Iran.
b Department of Agronomy and Plant Breeding , College of Abourihan, University of Tehran , Tehran , Iran.
Nat Prod Res. 2018 Feb;32(3):322-326. doi: 10.1080/14786419.2017.1346647. Epub 2017 Jul 3.
The effects of gamma irradiation (GR) on total phenol, anthocyanin and antioxidant activity were investigated in three different Persian pistachio nuts at doses of 0, 1, 2 and 4 kGy. The antioxidant activity, as determined by FRAP and DPPH methods, revealed a significant increase in the 1-2 kGy dose range. Total phenol content (TPC) revealed a similar pattern or increase in this range. However, when radiation was increased to 4 kGy, TPC in all genotypes decreased. A radiation dose of 1 kGy had no significant effect on anthocyanin content of Kale-Ghouchi (K) and Akbari (A) genotypes, while it significantly increased the anthocyanin content in the Ghazvini (G) genotype. In addition, increasing the radiation to 4 kGy significantly increased the anthocyanin content of K and G genotypes. To conclude, irradiation could increase the phenolic content, anthocyanin and antioxidant activity of pistachio nuts.
研究了γ射线辐照（GR）对三种不同波斯开心果在0、1、2和4千戈瑞剂量下总酚、花青素和抗氧化活性的影响。通过FRAP和DPPH方法测定的抗氧化活性表明，在1-2千戈瑞剂量范围内显著增加。总酚含量（TPC）在该范围内呈现相似模式或增加。然而，当辐射剂量增加到4千戈瑞时，所有基因型的TPC均下降。1千戈瑞的辐射剂量对卡莱-古奇（K）和阿克巴里（A）基因型的花青素含量没有显著影响，而对加兹维尼（G）基因型的花青素含量有显著增加。此外，将辐射剂量增加到4千戈瑞显著增加了K和G基因型的花青素含量。总之，辐照可以增加开心果的酚类含量、花青素和抗氧化活性。
