Effect of Brewing Water on the Antioxidant Capacity of Green Tea Infusion with DPPH Assay

<div>Effect of Ca<sup>2+</sup> and Mg<sup>2+</sup> of 40 mg/L on the antioxidant activity of EGCG solutions with different concentrations. CK: control check, EGCG solution without ion; +Ca<sup>2+</sup>: EGCG solution with Ca<sup>2+</sup>; +Mg<sup>2+</sup>: EGCG solution with Mg<sup>2+</sup>. The marks above the column show the significance of differences between CK with +Ca<sup>2+</sup> or +Mg<sup>2+</sup>, ns indicates <span class="nowrap"><svg height="11.7782pt" id="M30" style="vertical-align:-3.42938pt" version="1.1" viewbox="-0.0498162 -8.34882 44.5261 11.7782" width="44.5261pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M570 304C570 398 525 448 414 448C385 448 343 445 312 434L329 511L321 518C297 504 262 482 244 460L233 411C195 397 159 381 128 358L135 332C160 347 189 360 224 373L111 -147C97 -210 84 -218 17 -231L13 -257L254 -247L259 -218L233 -216C183 -212 177 -202 189 -142L218 -1C238 -10 266 -12 283 -12C351 3 429 48 483 105C543 168 570 242 570 304ZM482 289C482 161 380 33 304 33C278 33 248 51 233 69L303 396C326 400 352 403 369 403C428 403 482 380 482 289Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.342,0)"><path d="M512 230V281L75 514V456L453 256V254L75 55V-3L512 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Journal of Chemistry

fig5

Figure 5

Figure 5: Effect of Brewing Water on the Antioxidant Capacity of Green Tea Infusion with DPPH Assay 