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    超聲波技術在中藥物提取的應用
    2019-09-13 17:45:28
    1、超聲波提取器原理是由超聲波信號發生器(電源)產生的高頻振蕩信號通過換能器(振子)轉化成高頻機械振蕩並傳播到液體中,超聲波在液體中疏密相間地向前輻射並產生數以萬計的微小氣泡,這些氣泡在傳播過程中的負壓區形成、生長,而在正壓區迅速閉合,在這種被稱之為“空化效應”的過程中,氣泡閉合可形成上千個大氣壓的瞬時高壓,連續不斷的產生的高壓就像無數小“爆炸”不斷衝擊物體表麵,從而使組織細胞壁內物質遊離到溶液中,進而達到提取組織內的有效成份的目的。
    1, the principle of ultrasonic extractor is composed of an ultrasonic signal generator (power) high-frequency oscillation signal generated by the transducer (oscillator) into high frequency mechanical oscillation and spread to liquid, ultrasonic density in liquid phase on radiation and generates tens of thousands of tiny bubbles, the bubbles in the negative pressure area is spread in the process of the formation and growth. In the area of positive pressure quickly closed, this is called "cavitation effect" in the process of bubble formation of instantaneous high pressure closed thousands of atmospheric pressure, like generating continuous countless small "explosion" continue to impact the surface of the object, so that the material organization within the cell wall to free solution. In order to extract effective ingredients within the organization to.
    2、運用超聲波多次效應,如機械振動、乳化、擴散、擊碎、化學效應等,也都有利於使植物中的有效成分轉移,並充分和溶劑混合,促進提取的進行。
    2, the use of ultrasonic multiple effects, such as mechanical vibration, emulsification, diffusion, crushing, chemical effects, etc., are also conducive to the effective composition of plants in the transfer, and fully and solvent mixture, to promote the extraction of.
    3、超聲波能破壞植物藥材的細胞,使溶媒能滲透到藥材細胞中,從而加速藥材中的有效成分溶解於溶媒中,以提高有效成分的提出率。超聲波提取不會改變有效成分的結構,並且縮短提取時間,提高提取率,從而為中草藥成分的提取提供了快速、高產的新方法。
    3, ultrasonic can damage the cells of medicinal plants, so that solvent can penetrate into the cells of medicinal materials, thus speeding up the Chinese herbal medicine effective components dissolved in the solvent, in order to improve the effective components of the proposed rate. Ultrasonic extraction will not change the structure of the active ingredients, and shorten the extraction time, improve the extraction rate, which provides a new method for the extraction of Chinese herbal medicine.
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