黄精的营养科学

关于我常听过说的九蒸九晒黄精是指将黄精（常用品种如多花黄精、滇黄精或黄精本品）通过“蒸—晒”反复九次的传统中药炮制工艺。这种工艺在中医学里也应用于何首乌、生地黄等药材，通过多次蒸制、晾晒或晒干，能够去除杂质和异味，改变药材的性状和部分化学成分，从而提升药材的“滋补”与“平和”特性。功效特点：补益作用更显著传统观点认为黄精本身具有“补气养阴”“滋补肝肾”的功效，经过九蒸九晒后，药材更加温和，补益效果更突出。口感和性质更平和反复蒸煮和晾晒可促进黄精内部糖分转化与聚合，使其口感更柔软香甜，也使刺激性、寒凉性降低，更易被人体接受与消化。去除杂质和膻腥味多次蒸制能分解黄精中的杂质和部分多余成分，并去除可能存在的异味或土腥味。便于长期存放多次蒸晒后，黄精中的水分含量进一步降低，品质稳定，便于保存和运输，同时也减少霉变的可能。
The nine-steaming and nine-drying of Polygonatum odoratum that I often hear refers to the traditional Chinese medicine processing process of repeatedly steaming and drying Polygonatum odoratum (common varieties such as Polygonatum multiflorum, Polygonatum yunnanensis or Polygonatum odoratum itself) for nine times. This process is also used in traditional Chinese medicine for medicinal materials such as Polygonatum multiflorum and Rehmannia glutinosa. Through multiple steaming, drying or sun drying, it can remove impurities and odors, change the properties and some chemical components of the medicinal materials, and thus enhance the "tonic" and "peaceful" characteristics of the medicinal materials. Efficacy characteristics: more significant tonic effect The traditional view is that Polygonatum odoratum itself has the effects of "tonifying qi and nourishing yin" and "tonifying the liver and kidneys". After nine steaming and nine drying, the medicinal materials are milder and the tonic effect is more prominent. The taste and nature are more peaceful. Repeated steaming and drying can promote the transformation and polymerization of sugars inside Polygonatum odoratum, making it taste softer and sweeter, and also reduce the irritation and coldness, making it easier to be accepted and digested by the human body. Removing impurities and mutton smells Multiple steaming can decompose impurities and some excess ingredients in polygonatum, and remove possible odors or earthy smells. Convenient for long-term storage After multiple steaming and drying, the moisture content in polygonatum is further reduced, the quality is stable, and it is easy to store and transport, while also reducing the possibility of mildew.#nutrition #food #营养学 #黄精#polygon

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*RESOURCES MENTIONED
Lin, H., Wang, W., Peng, M. et al. Pharmacological properties of Polygonatum and its active ingredients for the prevention and treatment of cardiovascular diseases. Chin Med 19, 1 (2024). https://doi.org/10.1186/s13020-023-00...
*IMPORTANT :
The content in this video is not intended as a substitute for the medical advice of a primary physician. Please regularly consult with your physician in matters relating to your health, particularly with respect to any symptoms that may require diagnosis or immediate medical attention.