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Full-Text Articles in Life Sciences
Ethanol Fractional Purification, Physicochemical Properties And Antioxidant Activity Of Polysaccharides From Glehnia Radix, Jing Yong-Shuai, Jin Shan, Zhang Dan-Shen, Zhang Rui-Juan, Wang Fei-Fan, Zheng Yu-Guang, Wu Lan-Fang
Ethanol Fractional Purification, Physicochemical Properties And Antioxidant Activity Of Polysaccharides From Glehnia Radix, Jing Yong-Shuai, Jin Shan, Zhang Dan-Shen, Zhang Rui-Juan, Wang Fei-Fan, Zheng Yu-Guang, Wu Lan-Fang
Food and Machinery
To study the physicochemical properties and antioxidant activity of ethanol-graded polysaccharides of Glehnia Radix. Four kinds of polysaccharides of Glehnia Radix (GLP-30, GLP-50, GLP-70, GLP-residual) were fractionated and purified by water extraction and alcohol precipitation. Fourier transform infrared spectroscopy, high performance liquid chromatography, and gel permeation chromatography, scanning electron microscopy, and differential scanning calorimetry-thermogravimetric analysis were used to evaluate the physicochemical properties and structure characteristics of polysaccharides. The antioxidant activities were also studied. The four polysaccharides of Glehnia Radix have the typical groups of polysaccharides, but the results of differential scanning calorimetry are quite different, which may be due …
Effects Of Different Extraction Methods On Yield And Antioxidant Activity Of Lotus Leaves Polysaccharide, Xing Ying, Jing Yan-Fang
Effects Of Different Extraction Methods On Yield And Antioxidant Activity Of Lotus Leaves Polysaccharide, Xing Ying, Jing Yan-Fang
Food and Machinery
The effects of four extraction methods, which include hot water extraction, ultrasonic extraction, enzyme extraction and alkali extraction on the yield, structure and antioxidant activity of crude polysaccharide of lotus leaf were investigated. The result
Determination Of Active Components In Ciqishencapsule And Its Safety Evaluation, Wang Xiao-Lin, Dai Li-Ying, Di Song, Zhong Fang-Li
Determination Of Active Components In Ciqishencapsule And Its Safety Evaluation, Wang Xiao-Lin, Dai Li-Ying, Di Song, Zhong Fang-Li
Food and Machinery
The ginsenoside in Ciqishen capsule was detected by using HPLC,and the polysaccharide was determined by UV. The safety of Ciqishen capsule were evaluated by the acute toxicity test in rats and mice, with the mutation tests of salmonella test (Ames test),the micronucleus tests of mice bone marrow polychromatic erythrocytes and the experiment of mouse sperm deformity, and the 30-day feeding test was used for toxicological study. The results showed that the average contents of ginsenoside and polysaccharide in Ciqishen capsule were 0.273,3.190 g/100 g. The acute toxicity result showed that the biggest tolerance dose of Ciqishen capsule on rats and …
Research On Ultrasonic-Assisted Extraction Process And Stability Of Polysaccharides From Lilium Davidii Var Bulb, Li Gang-Gang, Sun Jing, Fu Heng-Yi, Xiao Bi-Liang
Research On Ultrasonic-Assisted Extraction Process And Stability Of Polysaccharides From Lilium Davidii Var Bulb, Li Gang-Gang, Sun Jing, Fu Heng-Yi, Xiao Bi-Liang
Food and Machinery
An orthogonal test was utilized to optimize the ultrasonic-assisted extraction process of polysaccharides from Lilium davidii var waste bulb, and the stability of the polysaccharides was studied. The results showed that the optimum extraction conditions for ultrasonic-assisted extraction process were as followed: the ratio solid to liquid of 1:20 (g/mL), ultrasonic time of 60 min, ultrasonic power 250 W, and ultrasonic temperature 60 ℃. Under the conditions, the extracting rate of polysaccharides from Lilium davidii var was 18.44%. The anti-oxidization stability of polysaccharide extracts was poor, whicht was easy to be oxidized by H2O2, but has …
Optimization Of Extraction Process And Antioxidant Activity Of Polysaccharide From Clinacanthus Nutans By Response Surface Methodology, Yu Teng-Fei, Tang Nian-Chu, Liu Cheng-Yi
Optimization Of Extraction Process And Antioxidant Activity Of Polysaccharide From Clinacanthus Nutans By Response Surface Methodology, Yu Teng-Fei, Tang Nian-Chu, Liu Cheng-Yi
Food and Machinery
The extraction temperature, ratios of water to material and extraction time were taken as the influencing factors, and the extraction rate of polysaccharides from Clinacanthus nutans was taken as the evaluation index to carry out single factor experiment, and Box-Behnken response surface methodology was used to optimize the extraction process on the basis of single factor test results. The results showed that the best extraction conditions of polysaccharides from Clinacanthus nutans were as follows: the ratio of material to liquid was 1:31 (g/mL), the extraction temperature was 92 ℃, the extraction time was 1.6 h. and the extraction rate was …