荷叶的功效与作用：清热解暑宜生用,散瘀止血宜炒炭用

植物图片 2019-03-27 16:54

荷叶为睡莲科植物莲的叶。莲多年生水生草本，生于水泽、池塘、湖沼或水田内，野生或栽培。6至7月花未开放时采收，除去叶柄，晒至七八成干，对折成半圆形，晒干。夏天亦用鲜叶或初生嫩叶。然而荷叶有些什么功效呢？荷叶的作用又有哪些呢？亲，您一定也想了解吧。那么我们一起往下阅读吧^_^

庞大的荷叶

荷叶的功效：

成分：荷叶碱、柠檬酸、苹果酸、葡萄糖酸、草酸、琥珀酸及其它抗有丝分裂作用的碱性成分。

性味：平、苦。

归经：心、肝、脾经。

功效：清热解暑，升发清阳，凉血止血。用于：暑热烦渴，暑湿泄泻，脾虚泄泻，血热吐衄，便血崩漏。荷叶炭收涩化瘀止血。用于多种出血症及产后血晕。

荷叶的作用：

降血脂：荷叶碱是荷叶中提取的生物碱，荷叶碱可扩张血管，清热解暑，有降血压的作用。

防治心血管疾病：荷叶是“药食两用”的食物，荷叶中富含的黄酮类物质，是大多数氧自由基的清除剂，可以提高SOD（超氧化物歧化酶）的活力，减少MDA（脂质过氧化物丙二醛）及0X－LDL（氧化低密度脂蛋白）的生成，它可以增加冠脉流量，对实验性心肌梗塞有对抗作用；对急性心肌缺血有保护作用；对治疗冠心病、高血压等有显著效果；对降低舒张压，防治心律失常、心血管病等也起重要作用。

减肥：荷叶中的生物碱有降血脂作用，且临床上常用于肥胖症的治疗。荷叶减肥原理，即服用后在人体肠壁上形成一层脂肪隔离膜，有效阻止脂肪的吸收，从根本上减重，并更有效的控制反弹。

池塘里的荷叶

荷叶的注意事项：

1、清热解暑宜生用，散瘀止血宜炒炭用。

2、新鲜者善清夏天之暑邪，临床常与鲜藿香、鲜佩兰、西瓜翠衣等配伍应用。

3、荷叶既能清热解暑，又能升发脾阳，对暑热泄泻，常与扁豆等配伍应用。

4、荷叶对脾虚气陷，大便泄泻者，也可加入补脾胃药中同用。

长势不错的荷叶

荷叶的知识扩展：

荷叶用法用量：内服：煎汤，1～3钱(鲜者0.5～1两)；或入丸、散。外用：捣敷、研末掺或煎水洗。

荷叶的选购：干燥的叶通常折叠成半圆形或扇形，完整或稍破碎。叶子展开后呈圆盾形，直径30余厘米。正面青绿色或棕绿色，有白色短粗腺毛；背面灰黄色或淡灰绿色，平滑有光泽；中心有一突起的叶柄残基；全缘；叶脉明显，粗脉21～22条，由中心向外放射，并分生多数细脉。质脆，易碎。微有清香气，味淡微涩。以叶大、完整、色绿、无斑点者为佳。

专题： 荷叶
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