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花粉是植物雄蕊里的细小颗粒是遗传后代的雄性细胞(精子),它含有16～22种氨基酸,包括8种人体必须氨基酸,10～15种维生素,20余种微量元素与常量元素,及多种酶和激素等生物活性物质。这些物质对人体有着重要的营养价值和调节作用。但是,在大自然长期选择中,植物为了抵御外界不良因素的影响,如天气、温度、阳光等,保存花粉的生命力,以便传种接代,所以花粉有一个坚硬的外壁。其主要成分为孢粉素,是一种胡萝卜素和类胡萝卜素脂的氧化聚合物,耐酸耐碱耐腐蚀,因而花粉的外壁素有盔甲之称。正因为花粉有坚硬的外壁,所以它能长期保存在沉积物
Pollen is a small, male-like cell (sperm) of the offspring of plant stamens containing 16 to 22 amino acids including 8 essential amino acids, 10 to 15 vitamins, more than 20 trace elements and constant elements, and more Enzymes and hormones and other bioactive substances. These substances have important nutritional value and regulatory function on the human body. However, in the long-term natural selection, plants have a hard outer wall to resist polluting factors such as the weather, temperature, sunshine and preserve the vitality of the pollen so that the pollen has a hard coat. Its main component is sporopollenin, which is an oxidized polymer of carotene and carotenoid. It is acid and alkali-resistant and corrosion-resistant. Therefore, pollen’s outer wall is known as armor. Just because pollen has a hard outer wall, it can be stored in sediment for a long time