Research on the Extraction Process of Water-Soluble Asparagus Powder and Removal of Free Radical

2013 ◽  
Vol 284-287 ◽  
pp. 385-389
Author(s):  
You Shun Peng ◽  
Shi Tao Song ◽  
Shu Yuan Wang ◽  
Xue Fang Zheng ◽  
Qi Lian
Keyword(s):  
Free Radicals ◽  
Hydroxyl Radicals ◽  
Extraction Process ◽  
Water Soluble ◽  
Raw Material ◽  
Liquid Ratio ◽  
Extraction Condition ◽  
Yield Rate ◽  
Solid Liquid ◽  
Optimum Extraction

The optimum extraction condition of water-soluble asparagus powder through water boiling method is to extract it twice, in the first extraction, 8% is set as the solid-liquid ratio, 15 minutes is set as the soak time and 40 minutes is set as the boiling time; in the second extraction, 10% is set as the solid-liquid ratio, 40 minutes is set as the boiling time. Under this condition, the dry yield rate is 33.98%, and the total active substance yield rate is 10.34% (including flavones yield rate of 1.0%, saponin yield rate of 5.99%, and polysaccharide yield rate of 3.35%). Water-soluble asparagus powder has good removal effects on hydroxyl radicals, superoxide anion free radicals, and DPPH free radicals. The water-soluble asparagus powders made from the raw material in different pick-time have different removal effects on DPPH free radicals, and the asparagus powder made from asparagus picked in August, September, and October is better.The best is to read these instructions and follow the outline of this text.

scholarly journals Study on Extraction Technology of Pitaya Polysaccharide

2021 ◽  
Vol 251 ◽  
pp. 02052
Author(s):  
Feng Xuehua ◽  
Song Zurong ◽  
Tao Ali ◽  
Gong Panpan
Keyword(s):  
Orthogonal Test ◽  
Raw Material ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Single Factor ◽  
Liquid Ratio ◽  
Extraction Technology ◽  
Solid Liquid ◽  
Optimum Extraction

Using pitaya as raw material, this paper used ethanol subsiding method to study the extraction technology of pitaya polysaccharide by single factor test and orthogonal test. Through orthogonal test, we have found the optimum extraction conditions of pitaya polysaccharide as follows: extraction temperature 60℃, solid-liquid ratio 1:30, extraction time 3h. Under the optimal extraction conditions, the yield of pitaya polysaccharide was 1.13%.

Preparation of γ-Aminobutyric Acid from Brown Rice in the Determination

2011 ◽  
Vol 396-398 ◽  
pp. 1628-1631
Author(s):  
Su Hong Li ◽  
Li Juan Wang ◽  
Tuo Ping Li ◽  
Zhong Li Jang ◽  
Jun Wei Wang
Keyword(s):  
Brown Rice ◽  
Extraction Process ◽  
Water Extraction ◽  
Aminobutyric Acid ◽  
Liquid Ratio ◽  
Extraction Condition ◽  
Gaba Content ◽  
Effects Of Temperature ◽  
Optimum Extraction ◽  
Orthogonal Tests

Water extraction and ethanol reflux extraction of γ-aminobutyric acid (GABA) in brown rice were compared with the yield and the recovery. In the water extraction, the effects of temperature and time on the extraction process of GABA were investigated, the results showed that the optimum extraction condition was incubated at 50°C for the 3h, and the GABA content was 30.73mg/100g, the recovery of the water extraction was lower, just 60.5% on average. The single factor and orthogonal tests of the extraction conditions were discussed for the ethanol reflux extraction. The result indicated that the best extraction condition is incubated in 70% ethanol, at 80°C, solid to liquid ratio 1:7 (g/mL), GABA content was 50.45 mg/100g, the recovery was 98.5%.

scholarly journals The use of mica schist from Indonesia as raw material for lithium extraction process using sulfate roasting and acid leaching

2021 ◽  
Vol 3 (6 (111)) ◽  
pp. 80-88
Author(s):  
Nadia Chrisayu Natasha ◽  
Latifa Hanum Lalasari ◽  
Lia Andriyah ◽  
Tri Arini ◽  
Fariza Yunita ◽  
...  
Keyword(s):  
Lithium Concentration ◽  
Extraction Process ◽  
Raw Material ◽  
Chemical Agent ◽  
Average Particle ◽  
Mica Schist ◽  
Liquid Ratio ◽  
Roasting Process ◽  
Icp Analysis ◽  
Solid Liquid

Lithium minerals become a sub-economic raw material for lithium production to fulfill the lithium demand. This study is about lithium extraction from mica schist using the roasting and leaching processes. The mica schist located in Kebumen, Indonesia was used to study the phenomena during the lithium extraction process. Sodium sulfate was used as a roasting agent while 0.36 M sulfuric acid was used as a leaching agent. Solid/liquid ratio (1:5, 1:10, 1:15 and 1:20 (g/mL)) and leaching time (30, 60, 90 and 120 minutes) were used as variables in this study. The roasting process was done at 700 °С for 40 minutes while the leaching process was done at 70 °С and 350 rpm. The ratio of additive and mica schist was 1.5:1 (g/g). XRD, ICP-OES, and SEM were used to observe the formed compounds, chemical composition and morphology of the materials. HighScore Plus (HSP) was used to interpret the content of each compound in mica schist, roasted mica schist, and residue. ICP analysis confirmed that the mica schist contains 45.28 ppm of lithium. It is supported by XRD that lithium exists in mica schist as lepidolite (KLi2AlSi4O10(F,OH)2). Sulfate roasting did not affect the type of lepidolite but the lepidolite reactivity against the chemical agent. SEM analysis shows that the roasting process reduced the average particle size from 32.17 to 27.16 µm. ICP analysis of roasted mica schist shows that lithium concentration was reduced from 45.28 to 1.27 ppm. The optimum result from this study was 97.66 % extraction of lithium while solid/liquid ratio was 1:5 (g/ml) and leaching time was 30 minutes. HSP shows that lepidolite contents in initial mica schist, roasted mica schist and residue were 60.6; 24.3 and 18.7 %, respectively. Lithium concentration in the residue according to ICP analysis is 1.06 ppm.

Optimization of Microwave Extraction Process by Response Surface Methodology of Flavonoids from Tussilago farfara L.

2013 ◽  
Vol 763 ◽  
pp. 246-249
Author(s):  
Xiao Song ◽  
Peng Zhao
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Microwave Power ◽  
Extraction Process ◽  
Raw Material ◽  
Extraction Time ◽  
Microwave Extraction ◽  
Water Solvent ◽  
Tussilago Farfara ◽  
Optimum Extraction

Flavonoids from Tussilago farfara L. was extracted with the assistance of microwave.Box-Behnken design (BBD) was employed to optimize extraction time; microwave power and ratio of water to raw material to obtain a high flavonoids yield.The optimum extraction conditions were as follows: 73.3% ethanol-water solvent, time 16.25 min and ratio of solvent to raw material 36.2ml/g.The yield of flavonoids was 11.37% based on the above mentioned conditions.

Research on Biochemical Materials with Optimization of Microwave Extraction Process by Response Surface Methodology of Flavonoids from Platycarya strobi lacea sieb.et zucc.

2014 ◽  
Vol 1014 ◽  
pp. 61-64
Author(s):  
Xiao Song ◽  
Peng Zhao ◽  
Qing Hua Meng ◽  
Zhi Shu Tang ◽  
Chang Li Wang
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Microwave Power ◽  
Extraction Process ◽  
Raw Material ◽  
Extraction Time ◽  
Microwave Extraction ◽  
Water Solvent ◽  
Optimum Extraction

Flavonoids from Platycarya Strobi lacea Sieb.et Zucc. was extracted with the assistance of microwave.Box-Behnken design (BBD) was employed to optimize extraction time; microwave power and ratio of solvent to raw material to obtain a high flavonoids yield. The optimum extraction conditions were as follows: 65.32% ethanol-water solvent, time 3.96 min and ratio of solvent to raw material 20.8 ml/g.The yield of flavonoids was 3.41% based on the above mentioned conditions.

Optimization of Extraction Conditions of Essential Oil from Latifolia miq Roots and Stems with Supercritical CO2 Fluid

2013 ◽  
Vol 726-731 ◽  
pp. 4512-4516
Author(s):  
Ren Yong Gu ◽  
Zhi Ping Li
Keyword(s):  
Essential Oil ◽  
Optimum Condition ◽  
Raw Materials ◽  
Extraction Process ◽  
Orthogonal Test ◽  
Single Factor ◽  
Extraction Condition ◽  
Optimum Extraction ◽  
Optimum Extraction Condition

Studying on the extraction process of essential oil from Latifolia Miq roots and stems by Supercritical CO2 extraction. The effects on extracting ratio were investigated by using single factor test, adding content of grinding fineness of raw materials,extracting temperature, extracting pressure and extracting time. The optimum extraction condition was determined by orthogonal test. The results showed that the optimum condition of the extraction was as follows: grinding fineness 90 mesh, extracting temperature 45 °C, extracting pressure 20 MPa and extracting time 2.5 h.

Investigating the Potential Use of Papaya Leaf Extract as Natural Dyes in the Textile Industry

2020 ◽  
Vol 991 ◽  
pp. 129-134
Author(s):  
Suharno Rusdi ◽  
Huda F. Maulana ◽  
Nuriaji L. Samudro ◽  
Achmad Chafidz
Keyword(s):  
Textile Industry ◽  
Leaf Extract ◽  
Extraction Process ◽  
Natural Dyes ◽  
Raw Material ◽  
Cotton Cloth ◽  
Synthetic Dyes ◽  
Test Results ◽  
Washing Method ◽  
Solid Liquid

Synthetic dyes are widely used in the majority of the large textile industry. The use of synthetic dyes can cause water pollution from sewage disposal of the textile industry. Some types of synthetic dyes contain heavy metals that are harmful to human health and can damage the environment. With increasing awareness of the current environmental problems, people begin to focus on returning back to natural dyes. These natural dyes can be extracted from various parts of plants, such as leaves, flowers, fruit, wood or stems, and roots. Papaya leaves have the potential to be used as a basic ingredient to make natural dyes due to fairly high chlorophyll content. Therefore, we took the initiative to conduct research on the production of natural dyes from papaya leaf extract. Papaya leaf extract was produced by using a solid-liquid extraction process using two different solvents, ethanol (96%) and n-hexane. From the results of the study, it was found that the most optimum extract results in the extraction process was about 2.20% of the raw material of dried papaya leaves by using ethanol solvent. The prepared cotton cloth was then colored with papaya leaf extract through three simple steps, namely: mordanting, dyeing, and fixation. Fabric staining results then tested its fastness by two methods, namely the rub method and the washing method with soap. From the test results it was found that the fabric which was dyed with papaya leaf extract was not too resistant to fade from rubbing and soap washing. Therefore, further research is needed, such as using other agents during the mordanting and fixation processes.

Extracted from Actinidia Arguta of Wild Fructification Polyphenols Optimization Conditions

2014 ◽  
Vol 1082 ◽  
pp. 106-111
Author(s):  
Yu Hong Yang ◽  
Zong Li Kang ◽  
Rui Xin Guo ◽  
Hong Ling Wang ◽  
Zhuo Wang ◽  
...  
Keyword(s):  
Experimental Design ◽  
Design Method ◽  
Acetone Solution ◽  
Raw Material ◽  
Orthogonal Experimental Design ◽  
Single Factor ◽  
Liquid Ratio ◽  
Actinidia Arguta ◽  
Experimental Design Method ◽  
Solid Liquid

We had studied using single factor and orthogonal experimental design method for extracted from actinidia arguta of wild fructification polyphenols conditions optimization, as actinidia arguta of wild raw material. The results showed that: extracted from actinidia arguta of wild fructification polyphenols optimization the best conditions is acetone solution of 30 percent, according to the solid-liquid ratio of 1:9, at 35°C, the extraction 30 min best, the amount of polyphenols extracted 763.8 mg / L.

scholarly journals The Effect of Operating Conditions on Curcumin Extracted from Turmeric by Hydrothermal Extraction

2019 ◽  
Vol 125 ◽  
pp. 19001
Author(s):  
Mohamad Endy Yulianto ◽  
Rizka Amalia ◽  
Vita Paramita ◽  
Indah Hartati ◽  
Nissa Ayu Maulinda ◽  
...  
Keyword(s):  
High Efficiency ◽  
Economic Value ◽  
Bioactive Compound ◽  
Extraction Process ◽  
Operating Conditions ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
High Concentration ◽  
Solid Liquid ◽  
Hydrothermal Extraction

Turmeric has a bioactive compound namely curcuminoid. It has many pharmacology effects such as anticancer, antidiabetic, antioxidant, hypolipidemic, anti-inflammatory, antimicrobial, antifertility, anti-venom, anti-coagulant, anti-HIV hepatoprotective, nephroprotective, and anticoagulant properties. To increase the economic value of turmeric, it is necessary to develop a hydrothermal extraction process of turmeric’s active compound. The advantages of hydrothermal extraction were inexpensive, abundant availability, high purity, non-toxic, and easy to handle. This research aims to study the effect of operating conditions : temperature (130-150oC), time (10-40 minutes) and solid:liquid ratio (1:10 and 1:12) on the bioactive compounds of turmeric extracted from hydrothermal extraction process. Generally, high extraction yield was obtained at higher extraction temperature (140 and 150oC). Under these conditions, with a lower solid : liquid ratio (1:10), high concentration of curcumin is produced. Further, a higher solid : liquid ratio will likely produce the opposite result, except when it operates at low extraction temperature. The high temperature of the pressurized liquid water can reduce the viscosity and surface tension of water so it will increase the diffusion rates and absorption. The higher the solid:liquid ratio, the greater the different concentration between interior and exterior cell, which promote the high efficiency of diffusion process.

Ultrasonic Extraction Chuanxiong Polysaccharide of Influencing Factors

2012 ◽  
Vol 550-553 ◽  
pp. 1071-1075
Author(s):  
Yong Guang Bi ◽  
Chun Chun Liu
Keyword(s):  
Influencing Factors ◽  
Extraction Process ◽  
Extraction Rate ◽  
Ultrasonic Extraction ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Ultrasonic Time ◽  
Solid Liquid

In order to study the the Chuanxiong polysaccharide ultrasonic extraction process, examine the ultrasonic time, ultrasonic power, solid-liquid ratio and extraction temperature on the Chuanxiong polysaccharide extract rate. The results show that the role of time at 30min Polysaccharide better, the extraction rate is 26.63%. when the ultrasonic power is 320W, Polysaccharide extraction rate is 26.15%.When the solid-liquid ratio is 1:20, polysaccharide extraction rate is 27.73%. When the extraction temperature is 60°C, the polysaccharide extraction rate is 27.73%.

Sign in / Sign up

Export Citation Format

Share Document