02000nas a2200241   4500008004100000022001400041245012600055210006900181260009900250300001400349490000800363520112100371653001601492653001401508653001201522653001801534653001401552100001501566700002201581700001401603700001901617856012201636       2013                        eng d  a0308-814600aCharacterisation and determination of in vitro antioxidant potential of betalains from talinum triangulare (Jacq.) willd.0 aCharacterisation and determination of in vitro antioxidant poten  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcDEC  a4382-43900 v1413 a<p>Talinum triangulare (Jacq.) Willd is an erect, succulent, perennial herb belonging to the family Portulacaceae. Under extreme environmental conditions, the plant produces betalain pigments which get accumulated in the stem region. Hence, in the present study, the betaxanthin and betacyanin patterns from different samples of T. triangulare have been investigated by applying high-performance liquid chromatography photo-diode array detection (HPLC-PDA) coupled with positive ion electro-spray mass spectrometry. Two betacyanins and two betaxanthins were identified in aqueous methanolic extract of flower, stem and leaf. Betanin, isobetanin, immonium conjugates of betalamic acid with dopamine and tyrosine were elucidated. The total betalain content was estimated by photometric analysis. In vitro antioxidant activity for the betalain extract determined by various methods revealed potent scavenging ability. The current work may possibly be considered beneficial in utilisation of the plant T. triangulare as a natural colourant in food and beverage industries. (C) 2013 Elsevier Ltd. All rights reserved.</p>10aAntioxidant10aBetalains10aHPLC-MS10aPortulacaceae10aWaterleaf1 aSwarna, J.1 aLokeswari, T., S.1 aSmita, M.1 aRavindhran, R.  uhttps://library.ncl.res.in/content/characterisation-and-determination-vitro-antioxidant-potential-betalains-talinum-0