Determination of total polysaccharides and total polyphenols in the residual chemical components of Snow lotus oral liquid residue
This study demonstrated through preliminary experiments that there are residual polysaccharides and polyphenols in the Snow lotus oral liquid residue,in order to fully utilize these two active substances,using the method of water extraction and alcohol precipitation,crude polysaccharides were obtained from Snow lotus oral liquid residue,and the content was determined using the phenol sulfuric acid method;Using ultrasonic extraction method,extract polyphenols and determine their content using Folin phenol method.The results showed that there was a good linear relationship between the absorbance and the concentration of polysaccharide in the range of 2.5～17.5μg·mL-1,and the average content of polysaccharide was 21.40％,RSD was 1.85％;Polyphenols showed a good linear relationship with absorbance in the concentration range of 2.5～17.5μg·mL-1with an average value of 0.089％and RSD of 2.42％.As a product of secondary utilization,the content of total polysaccharides and total polyphenols in the Snow lotus oral liquid residue is relatively high,which has great utilization value and can be further studied.
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