Total Antioxidant Capacity and Total Phenolics Content of <i>Phyllostachys</i> Taxa Shoots

<p class=MsoNormal>Total phenolic content (TP) and total antioxidant capacity (AC) were analysed in shoots of <i><span lang=EN-US style='mso-ansi-language: EN-US'>Phyllostachys aureosulcata </span></i><span lang=EN-US style='mso-ansi-language: EN-US'>(PA)<i>, P aureosulcata </i><span style='mso-bidi-font-style:italic'>f.<i> aureocaulis </i></span>(PAA)<i>, P. aureosulcata </i>f.<i> spectabilis </i>(PAS)<i>, P. bissetii </i>(PB)<i>, P. flexuosa </i>(PF)<i>, P. humilis </i>(PH)<i>, P. iridescens </i>(PI)<i>, P. nigra </i>var.<i> nigra </i>(PNN)<i>, P. nigra </i>var.<i> henonis </i>(PNH)<i>, P. mannii </i>(PM)<i>, P. sulphurea </i>var.<i> sulphurea </i>(PSS)<i>, P. violascens </i>(PVI)<i>, P. viridiglaucescens </i>(PVG)<i>, P. vivax </i>f.<i> aureocaulis </i>(PVA), collected on four harvest dates</span>. Both TP and AC were determined following <span lang=EN-US style='mso-ansi-language: EN-US'>three processing methods, fresh, boiled and pickled in shoots of PF. </span>Comparative study of TP and AC in the above <i>Phyllostachys</i> species shoots has not been reported before. <span lang=EN-US style='mso-ansi-language:EN-US'>The </span>highest TP (1,227.6 &#956;g GA/ml) and AC (154.0 &#956;g AA/ml) values were measured in fresh shoots and the lowest in pickled ones. The highest values of TP were measured in the case of PA (1,321.95 &#956;g GA/ml). The other taxa followed in decreasing order: PF, PVI, PI, PAA, PB, PAS, PNN, PNH, PM, PH, PSS and PVA. The highest AC values were obtained in the case of PI (184.24 &#956;g AA/ml). The other taxa followed in decreasing order: PA, PF, PSS, PNN, PNH, PVG, PB, PAA, PAS, PV, PVA, PM and PH. The highest TP values were measured in taxa harvested on the first collection date and the values consequently decreased in taxa collected at later harvest dates. Our findings suggest that the earlier harvest date, through the influence of lower temperatures, could enhance the phytochemical content of bamboo shoots.<o:p></o:p></p>

Abstract licence: CC BY

A person counts once a day per paper. We keep no cookie and no address: a reader is a hash that changes every day. Any month under five reads shows no number.