Study on Ultrasonic Extraction of 1-Deoxynojirimycin(DNJ) and Polysaccharides from Mulberry Leaves

2011 ◽  
Vol 236-238 ◽  
pp. 2759-2764 ◽  
Author(s):  
Shu Xing Liu ◽  
Jun Li Hua ◽  
Hong Liang Li
Keyword(s):  
Orthogonal Experiment ◽  
Extraction Ratio ◽  
Raw Material ◽  
Ultrasonic Power ◽  
Optimum Conditions ◽  
Mulberry Leaves ◽  
Ultrasonic Time ◽  
Optimal Technology ◽  
Single Factor Experiment ◽  
Water Ratio

The study on optimal technology of extracting 1-deoxynojirimycin (DNJ) and polysaccharides from mulberry leaves as raw material is conducted on the basis of the single factor experiment and orthogonal experiment, and the study result shows the optimum conditions of the DNJ extraction are solid to water ratio of 1∶40, the ultrasonic power of 125 w, the ultrasonic temperature of 70°C, and the ultrasonic time of 20 min. The DNJ extraction ratio of 0.092%; while the optimum conditions of the polysaccharides extraction are solid to water ratio of 1 ∶30 , the ultrasonic power of 125 w , the ultrasonic temperature of 80°C, the ultrasonic time of 40 min and the polysaccharides extraction ratio of 2.52%.

Optimization for the Process of Chlorophyll a Extraction by Orthogonal Method

2014 ◽  
Vol 1051 ◽  
pp. 423-427
Author(s):  
Jun Sen Wu ◽  
Chen Chen Liu ◽  
Bing Li ◽  
Xiu Zhi Wan
Keyword(s):  
Chlorophyll A ◽  
Orthogonal Experiment ◽  
Ultrasonic Power ◽  
Assisted Extraction ◽  
Ultrasonic Time ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction ◽  
Extraction Agent ◽  
Optimum Extraction ◽  
Single Factor Experiment

The 90% acetone as extraction agent used in order to obtain the ultrasonic assisted extraction conditions of chlorophyll a. The ultrasonic power, ultrasonic time, centrifugation time and rotational speed as the four study factors and the chlorophyll a concentration as the target, here, the L9(34) orthogonal table of orthogonal experiment design are used in order to determine the optimum extraction contractions, basing on the single factor experiment. The experimental results shows the algae containing water can get better extraction effect, after ultrasonic 30 minutes in 225W and 6000r/min speed centrifugal 9 minutes and then mixing, repeat ultrasound centrifugation steps.

scholarly journals Extraction, Purification, Characterization, and Antiangiogenic Activity of Acidic Polysaccharide from Buddleja officinalis

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Xiaoteng Yan ◽  
Zhuan Yan ◽  
Qingping Xiong ◽  
Gaoqin Liu ◽  
Juanjuan Zhu ◽  
...  
Keyword(s):  
Average Molecular Weight ◽  
Acid Group ◽  
Raw Material ◽  
Ultrasonic Power ◽  
Optimal Parameters ◽  
Acidic Polysaccharide ◽  
Antiangiogenic Activity ◽  
Uronic Acid Content ◽  
Ultrasonic Time ◽  
Crude Polysaccharide

Firstly, optimal parameters of crude polysaccharide from Buddleja officinalis were obtained as follows: ratio of water to raw material of 26 : 1, ultrasonic power of 240 W, ultrasonic time of 45 min, and ultrasonic temperature of 62°C. Secondly, acidic polysaccharide (APBOM) from Buddleja officinalis was successfully acquired with the yield of 9.57% by using DEAE-52 cellulose and Sephadex G-100 gel column chromatography. Then, we found that total polysaccharide content of APBOM was 94.37% with a sulfuric acid group of 1.68%, uronic acid content of 17.41%, and average molecular weight of 165.4 kDa. Finally, APBOM was confirmed to have significant antiangiogenic effects.

Study on Preparation and Adsorption Performance of Gelatin Microspheres for Cr(VI)

2013 ◽  
Vol 641-642 ◽  
pp. 1005-1009 ◽  
Author(s):  
Xue Chuan Wang ◽  
Xiao Li Hao ◽  
Bao Yuan He ◽  
Tao Tao Qiang
Keyword(s):  
Thermal Decomposition ◽  
Crystalline State ◽  
Crosslinking Agent ◽  
Raw Material ◽  
Single Factor ◽  
Optimum Conditions ◽  
Gelatin Microspheres ◽  
Sem Images ◽  
Adsorption Performance ◽  
Single Factor Experiment

A novel microspheres adsorbent was prepared by the emulsion-congealed crosslinking method. The gelatin was as raw material and glutaraldehyde was as the crosslinking agent. The SEM images showed that the product was spherical, the distribution was uniform and not sticky. The TG result showed that the thermal decomposition form of gelatin microspheres was single and the thermostability was good. The XRD results indicated that the crystalline state of gelatin had not been affected by crosslinking of glutaraldehyde. The adsorption performance of gelatin microspheres to Cr(Ⅵ) was studied by the static adsorption experiments. The application conditions were optimized by single-factor experiment. The results showed that the optimum conditions were that pH was 3.0, temperature was 35°C and time was 1.5h.

Preliminary Research on Extract Ferulic Acid from Wheat Bran by Ultrasonic-Assisted Alkaline-Alcohol Hydrolysis

2011 ◽  
Vol 361-363 ◽  
pp. 753-758
Author(s):  
Shu Xing Liu ◽  
Bei Wang
Keyword(s):  
Ferulic Acid ◽  
Wheat Bran ◽  
Volume Ratio ◽  
Extraction Yield ◽  
Ultrasonic Power ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Ultrasonic Time ◽  
Ultrasonic Assisted ◽  
Acid Release

Extracting Ferulic Acid from wheat bran by ultrasonic-assisted alkaline-alcohol hydrolysis.Bran removed part of starch and protein by amylase and protease,using ultrasonic and different concentrations of alkaline-alcohol solution to prepare ferulic acid,and then based on the yield of ferulic acid release from wheat bran to determine optimal preparation condition.The optimum conditions are:the concentration of sodium hydroxide 4%,alkaline-alcohol volume ratio of 2:1,ultrasonic temperature 80°C,ultrasonic power 200w,solid-to-liquid ratio 1:12,ultrasonic time of 30min,under this conditions the average extraction yield is 3.1mg/g

Applied Orthogonal Experiment Design for Optimization of Ultrasonic-Assisted Extraction of Polysaccharides from Agaricus bisporus Mycelia

2014 ◽  
Vol 1010-1012 ◽  
pp. 1779-1782 ◽  
Author(s):  
Quan Sheng Chen ◽  
Tao Ying Zhou ◽  
Xing Yuan Li ◽  
Yu Bi ◽  
Hui De Yang
Keyword(s):  
Agaricus Bisporus ◽  
Orthogonal Experiment ◽  
Experiment Design ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Orthogonal Experiment Design ◽  
Solid Ratio ◽  
Assisted Extraction ◽  
Ultrasonic Time ◽  
Extraction Parameters

The purpose of this study to establish the optimum ultrasound-assisted extraction (UAE) parameters of Polysaccharides from Agaricus bisporus mycelia (PABM). Single factor experiment was employed to determine the preliminary range of the extraction parameters including liquid-solid ratio, ultrasonic time, extraction temperature, and ultrasonic power. Then, an orthogonal experiment design was employed to determine the best extraction parameters of PABM. the results showed that the optimal UAE parameters of PABM was liquid-solid ratio of 40 ml/g, ultrasonic time of 70 min, extraction temperature of 55°C, and ultrasonic power of 660 W.

Preparation Technology of Corn Resistant Starch by Autoclaving Method

2011 ◽  
Vol 239-242 ◽  
pp. 1929-1932
Author(s):  
Feng Gao ◽  
Ya Li Yu ◽  
Yu Jiang Chen
Keyword(s):  
Resistant Starch ◽  
Corn Starch ◽  
Orthogonal Experiment ◽  
Raw Material ◽  
Optimum Conditions ◽  
Preparation Technology ◽  
Optimum Parameters

Normal corn starch was used as raw material in this research and was treated by autoclaving method to produce corn resistant starch (CRS). This research was focused on techniques of preparing CRS through autoclaving method and effects of autoclaving method parameters on yields of CRS from corn starch. The optimum conditions were investigated with carrying out an L9(34) orthogonal experiment. The yield of CRS was 8.05 % under combination of optimum parameters obtained from L9(34) orthogonal experiment. The optimum parameters were concentration of NCS solution 25 %, pH6.5, autoclaving temperature 125 °C, autoclaving time 35 min.

Extraction of Collagen from Fish Scales with Papain under Ultrasonic Pretreatment

2011 ◽  
Vol 366 ◽  
pp. 421-424 ◽  
Author(s):  
Jiang Nan Zeng ◽  
Bo Quan Jiang ◽  
Zheng Qiang Xiao ◽  
Shu Huan Li
Keyword(s):  
Orthogonal Experiment ◽  
Extraction Rate ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Fish Scales ◽  
Single Factor ◽  
Optimum Conditions ◽  
Ultrasonic Pretreatment ◽  
Pretreatment Time ◽  
Single Factor Experiment

The extraction of collagen from fish scales with papain under ultrasonic pretreatment was conducted in this paper. The effects of the ultrasonic pretreatment time, the ratio of papain to fish scales, the extraction temperature and the extraction time on the extraction rate of collagen were investigated by single factor experiment and orthogonal experiment, respectively. The results showed that the optimum conditions for collagen extraction from fish scales were: ultrasonic pretreatment time 4min, ratio of papain to fish scales 4%, temperature 60°C and extraction time 5h. Under the optimum conditions the extraction rate of collagen reached 90.7%.

Efficient Synthesis of 3,4-Dihydropyrimidin-2(1H)-Ketone Using SbCl3 as Catalyst under Ultrasonic Conditions

2013 ◽  
Vol 316-317 ◽  
pp. 1045-1048
Author(s):  
Jin Lin ◽  
Jing Fen Li ◽  
Bin Bin Zheng ◽  
Xiao Ting Dai ◽  
Jia Feng ◽  
...  
Keyword(s):  
Design Optimization ◽  
Ethyl Acetoacetate ◽  
Orthogonal Design ◽  
Optimization Method ◽  
Raw Material ◽  
Ultrasonic Power ◽  
Efficient Synthesis ◽  
Extraction Technology ◽  
Ultrasonic Time ◽  
Ultrasonic Conditions

In this study, SbCl3 as catalyst to benzaldehyde, ethyl acetoacetate and urea as raw material in the ultrasonic radiation synthesis of 3,4-Dihydropyrimidin-2(1H)-ketone. According to the orthogonal design optimization experiment, optimization method ultrasonic extraction technology, and ultimate pass to get the best synthetic condition for: material ratio 1.0,1.0,1.5(mol), ultrasonic power 100 w, ultrasonic time 2 hours, ultrasonic temperature 65°C, the yield is 61.08%.

Selective Esterification of Ethylene Glycol Ethyl Ether over Silica-Cerous

2014 ◽  
Vol 651-653 ◽  
pp. 88-91
Author(s):  
Yong Jie Wang ◽  
Shi Yao Zhu ◽  
Geng Qiang Zhang
Keyword(s):  
Acetic Acid ◽  
Ethylene Glycol ◽  
High Activity ◽  
Ethyl Ether ◽  
Orthogonal Experiment ◽  
Optimal Conditions ◽  
Mass Ratio ◽  
Optimum Conditions ◽  
Single Factor Experiment ◽  
Glycol Ethyl Ether

With silica-cerous of high activity as catalyst, ethylene glycol ethyl ether acetate was synthesized from ethylene glycol ethyl ether and acetic acid. The proper conditions for the synthesis were obtained by a single factor experiment and orthogonal experiment. Based on 0.3 mol acetic acid, the optimum conditions were as follows: the mass ratio of silica-cerous (15% loaded sulfate cerous) / acetic acid being 0.056 : 1, the mol ratio of acetic acid / ethylene glycol ethyl ether being1 : 1.2, the amount of cyclohexane being 30 mL, reaction temperature being 90 °C, and reaction time being 2 h. Such optimal conditions give the highest yield of 99.53 % and selectivity of 100 % of ethylene glycol ethyl ether acetate. Its structure was confirmed by IR, and the catalyst still has high activity after being reused for five times.

Effects of Ultrasonic on Properties of Modified Soybean Protein-Based Adhesives for Duplex Paper

2010 ◽  
Vol 152-153 ◽  
pp. 1866-1872
Author(s):  
Guang Yang ◽  
Ning Sui ◽  
Bo Yang
Keyword(s):  
Reaction Time ◽  
Adhesion Strength ◽  
Soybean Protein ◽  
Orthogonal Experiment ◽  
Treatment Temperature ◽  
Optimum Conditions ◽  
Soybean Proteins ◽  
Ultrasonic Time ◽  
Protein Adhesives ◽  
Optimized Conditions

Effects of ultrasonic on properties of modified soybean protein adhesives for duplex paper were investigated in this paper. The results showed that the treatment temperature had the greatest impact on adhesion strength among all factors. Optimum conditions were obtained by orthogonal experiment as follows: modified temperature 60°C, concentration of urea 5 mol/L , content of protein 14% , reaction time 3 h and ultrasonic time 20min. At the optimized conditions, the adhesion strength of soybean proteins was 0.79MPa.

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