盐度及盐度诱导马齿苋（Portulaca oleracea L.）中生物活性化合物增加的影响，以探讨其潜在经济用途。

Effects of salinity and salinity-induced augmented bioactive compounds in purslane (Portulaca oleracea L.) for possible economical use.

作者信息

Amirul Alam Md, Juraimi A S, Rafii M Y, Hamid A A, Aslani F, Alam M Z

机构信息

Dept. of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang, Selangor DE 43400, Malaysia.

出版信息

Food Chem. 2015 Feb 15;169:439-47. doi: 10.1016/j.foodchem.2014.08.019. Epub 2014 Aug 17.

DOI:10.1016/j.foodchem.2014.08.019

PMID:25236249

Abstract

Dry matter (DM), total phenolics, flavonoids, carotenoid contents, and antioxidant activity of 12 purslane accessions were investigated against five levels of salinity (0, 8, 16, 24 and 32dSm(-1)). In untreated plants, the DM contents ranged between 8.0-23.4g/pot; total phenolics contents (TPC) between 0.96-9.12mgGAEg(-1)DW; total flavonoid contents (TFC) between 0.15-1.44mgREg(-1)DW; and total carotenoid contents (TCC) between 0.52BCEg(-1)DW. While FRAP activity ranged from 8.64-104.21mgTEg(-1)DW (about 12-fold) and DPPH activity between 2.50-3.30mgmL(-1) IC50 value. Different levels of salinity treatment resulted in 8-35% increases in TPC; about 35% increase in TFC; and 18-35% increases in FRAP activity. Purslane accessions Ac4, Ac5, Ac6 and Ac8 possessed potentials for salinity-induced augmented production of bioactive compounds which in turn can be harnessed for possible human health benefits.

摘要

研究了12个马齿苋种质的干物质（DM）、总酚、黄酮类化合物、类胡萝卜素含量及抗氧化活性，设置了5个盐度水平（0、8、16、24和32 dSm(-1)）。在未处理的植株中，DM含量在8.0 - 23.4 g/盆之间；总酚含量（TPC）在0.96 - 9.12 mg GAE g(-1) DW之间；总黄酮含量（TFC）在0.15 - 1.44 mg RE g(-1) DW之间；总类胡萝卜素含量（TCC）在0.52 BCE g(-1) DW之间。铁离子还原抗氧化能力（FRAP）活性范围为8.64 - 104.21 mg TE g(-1) DW（约12倍），1,1-二苯基-2-三硝基苯肼（DPPH）活性的半数抑制浓度（IC50）值在2.50 - 3.30 mg mL(-1)之间。不同盐度处理水平使TPC增加了8 - 35%；TFC增加了约35%；FRAP活性增加了18 - 35%。马齿苋种质Ac4、Ac5、Ac6和Ac8具有盐诱导生物活性化合物产量增加的潜力，进而可用于对人类健康可能产生的益处。