Abstract A crystallization method is applied to separate asiaticoside from total glucosides of Centella asiatica. Through the study of different solubility of total glucosides of Centella asiatica under a variety of melting-out agent and the resolution in different solvents - melting-out agent system were observed. More than 98.1% purity asiaticoside was obtained. The method is simple process, lower the prime cost and energy consumption, reducing pollution emissions.
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The method is simple process, lower the prime cost and energy consumption, reducing pollution emissions.
该方法工艺简单,大大地降低了生产成本以及生产过程中的能源消耗,减少了污染排放。
Indeed, China has had substantial successes in reducing pollution emissions since 2011, even as its economy has grown more than 7% per year and coal use has stabilized.
首先要承认,2011年以来,中国在降低污染物排放上的确取得了巨大的成功。而且这还是在国民经济持续保持7%以上的增长且煤炭使用量保持稳定的前提之下。
Certainly we are having a difficult time reducing our levels of carbon emissions, meeting previous goals on biodiversity, and eliminating Marine, atmospheric, and terrestrial pollution.
当然,我们还有不同的时间去提高减少碳的排放量的水平,以前的会议的目标是要保持生物的多样化,消除海洋大气陆地上的污染物。
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