3.1 Total polyphenol content, total

3.1总多酚含量，总醛含量<br>和抗氧化活性<br>金属离子的生物还原作用主要取决于<br>提取物中生物分子的存在，因此有必要<br>研究抗氧化活性与提取物中存在的其他生物分子之间的相关性。据报道<br>，提取物的抗氧化特性与酚类成分成正比，酚类成分是由<br>涉及生物和非生物<br>胁迫的次生植物代谢产物合成的[ 24，32 ]。使用标准Folin-Ciocalteu's比色法和标准比色法<br>估算了不同溶剂中肉桂类玉米皮提取物的总酚含量。<br><br>值以每毫升TAE的毫克数表示。该<br>结果表明TAE值的（图2a）一个显著变化<br>，并按照趋势乙醇<水性<DMSO提取物。肉桂玉米皮提取物中<br>的高浓度肉桂醛<br>可能是提取物<br>中高抗氧化活性的原因。总醛<br>含量遵循与<br>乙醇>水溶液> DMSO的抗氧化活性相似的趋势（图2b）。抗氧化剂活性和醛含量之间的相关系数<br>很高，R2 = 0.9926（图3b）。根据以前的报道，<br>肉桂<br>树皮提取物的抗氧化活性和还原能力彼此高度相关。<br>[26，33]。因此，总醛含量负责<br>提取物获得AgNPs的还原能力。通过监测纳米粒子的形状，大小和形态，在进一步的实验<br>中<br>观察到纳米粒子在不同溶剂提取物中的生长<br>。<br>使用<br>磷钼还原测定法确定提取物在不同溶剂中的抗氧化活性，并以百分比计算结果（图2c）。研究<br>了不同溶剂提取物中总多酚含量与抗氧化活性之间的关系，如图3a所示。提取物中的<br>总<br>酚含量与抗氧化活性之间没有强相关性，<br>与先前基于其他植物提取物的报道相矛盾<br>[24，32]。可能的原因可能是由于<br>桂皮<br>玉米肉桂树皮提取物中存在其他生物分子，与多酚含量相比，它们可能具有增加的抗氧化活性。

3.1 多酚总含量，甲醛总含量，<br>和抗氧化活性<br>金属离子的生物还原主要取决于<br>在提取物中存在生物分子，这是必要的<br>研究抗氧化活性与提取物中其他生物分子的相关性。据报道<br>提取物的抗氧化特性是直接对酚类成分的推进，由<br>涉及生物和非生物的二次植物代谢物<br>应力 [24， 32]。肉桂的总酚类含量<br>估计不同溶剂的齐拉尼库姆树皮提取物<br>使用标准的Folin-Ciocalteu的色度法和<br>值以每毫升泰的毫克表示。的<br>结果显示 TAE 值有显著变化（图 2a）<br>并遵循趋势乙醇水> DMSO（图2b）相似。抗氧化活性与醛含量的相关性是<br>高在R2 = 0.9926 （图3b）。根据以前的报告，<br>肉桂的抗氧化活性和还原作用<br>齐拉尼库姆树皮提取物彼此高度相关<br>[26, 33].因此，甲醛总含量负责<br>用于降低提取物的电位，以实现AgNPs。的<br>不同溶剂提取物中纳米粒子的生长<br>通过监测形状、大小，在进一步实验中观察到<br>纳米粒子的形态。抗氧化活性<br>不同溶剂中的萃取剂使用<br>磷酸减分测定结果按百分比计算（图2c）。之间的关系<br>对不同溶剂提取物中总多酚含量和抗氧化活性进行了调查，并在图中显示。3a.<br>在总<br>提取物的酚类含量和抗氧化活性<br>与基于其他植物提取物的先前报告相矛盾<br>[24, 32].一个合理的原因可能是由于存在<br>肉桂齐拉尼库姆树皮提取物中的其他生物分子，<br>这可能增加了抗氧化活性，因为与多酚含量有关。

3.1 Total polyphenol content, total aldehyde content,and antioxidant activityThe bioreduction of metal ions is mainly dependent on thepresence of biomolecules in the extracts and it is necessaryto investigate the correlation between antioxidant activity and other biomolecules present in the extracts. It has been reportedthat the antioxidant property of the extracts is directly propor￾tional to the phenolic components, which is synthesized bysecondary plant metabolites involving both biotic and abioticstresses [24, 32]. The total phenolic content of Cinnamonzeylanicum bark extract for different solvents was estimatedusing standard Folin-Ciocalteu’s colorimetric method and thevalues are expressed in milligrams per milliliter of TAE. Theresults showed a significant variation of TAE values (Fig. 2a)and follow the trend ethanol < aqueous < DMSO extracts.The high concentration of cinnamaldehyde in theCinnamon zeylanicum bark extract may be responsible forthe high-antioxidant activity in the extracts. The total aldehydecontent followed the trend as similar to the antioxidant activityethanol > aqueous > DMSO (Fig. 2b). The correlation coeffi￾cient between antioxidant activity and aldehyde content washigh at R2 = 0.9926 (Fig. 3b). According to previous reports,the antioxidant activity and reducing power of the Cinnamonzeylanicum bark extracts are highly correlated with each other[26, 33]. Therefore, the total aldehyde content is responsiblefor the reducing potential of the extract to achieve AgNPs. Thegrowth of the nanoparticles in different solvent extracts wasobserved in further experiments by monitoring the shape, size,and morphology of the nanoparticles. The antioxidant activityof the extracts in different solvents was determined usingphosphomolybdenum reduction assay and results were calculated in percentage (Fig. 2c). The relationship betweenthe total polyphenol content and antioxidant activity in differ￾ent solvent extracts was investigated and shown in Fig. 3a.There was no strong correlation observed in between totalphenolic content and antioxidant activity of the extracts whichcontradicts the previous reports based on other plant extracts[24, 32]. A plausible reason could be due to the presence ofother biomolecules in the Cinnamon zeylanicum bark extract,which may have increased the antioxidant activity as com￾pared to the polyphenol content.<br>