scholarly journals Optimum Extraction, Characterization, and Antioxidant Activities of Polysaccharides from Flowers of Dendrobium devonianum

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Donghui Wang ◽  
Bei Fan ◽  
Yan Wang ◽  
Lijing Zhang ◽  
Fengzhong Wang
Keyword(s):  
Antioxidant Activities ◽  
Monosaccharide Composition ◽  
Raw Material ◽  
Precipitation Method ◽  
Composition Analysis ◽  
Extraction Temperature ◽  
Extraction Technology ◽  
Essential Information ◽  
Assisted Extraction ◽  
Ultrasonic Assisted

Response surface methodology (RSM) was employed to optimize the conditions for the ultrasonic-assisted extraction (UAE) of polysaccharides from the flowers of Dendrobium devonianum. The optimal conditions for the maximum yields of DDFPs are as follows: an extraction temperature of 63.13°C, an extraction time of 53.10 min, and a water-to-raw material ratio of 22.11 mL/g. Furthermore, three fractions (DDFPs30, DDFPs50, and DDFPs70) were prepared from Dendrobium devonianum flowers polysaccharides (DDFPs) by the stepwise ethanol precipitation method. The DDFPs50 exhibited the highest antioxidant activity compared to the other fractions. The molecular weight, polydispersity, and conformation of these fractions were also characterized. In particular, the monosaccharide composition analysis of the DDFPs indicates that mannose and glucose are the primary components, similar to those of the D. officinale plant. This study provides a rapid extraction technology and essential information for the production of DDFPs, which could be potentially used as healthcare food.

Studies on Ultrasonic Assisted Extraction Technology of Flavonoid from Orange Peel

2013 ◽  
Vol 815 ◽  
pp. 317-320 ◽  
Author(s):  
Li Jing Min ◽  
Min Xing Zhao
Keyword(s):  
Citrus Fruit ◽  
Orange Peel ◽  
Alcohol Concentration ◽  
Raw Material ◽  
Optimum Process ◽  
Process Conditions ◽  
Extraction Technology ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

[ObjectivTo study the extraction technology of flavonoids from orange peel in order to provide some theoretical guidance for the industrial production of flavonoids from orange peel. [Metho Taking orange peel as raw material, which was citrus fruit processing waste and the flavonoid yield as index, with ultrasonic assisted extraction, through single factor experiments and orthogonal tests to optimization of the extraction technology, obtain optimum process conditions of orange flavonoid by ultrasonic assisted extraction. [Result As for ultrasonic assisted extraction, the yield of orange flavonoid reached 9.6% under extraction conditions of extracting time 30 min, alcohol concentration 60%, sedimentation ratio 1:25.

scholarly journals Extraction Optimization and Evaluation of the Antioxidant and α-Glucosidase Inhibitory Activity of Polysaccharides from Chrysanthemum morifolium cv. Hangju

Antioxidants ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 59 ◽  
Author(s):  
Xiaoyan Hou ◽  
Xia Huang ◽  
Jianlong Li ◽  
Guangyang Jiang ◽  
Guanghui Shen ◽  
...  
Keyword(s):  
Monosaccharide Composition ◽  
Chrysanthemum Morifolium ◽  
Raw Material ◽  
Ultrasonic Power ◽  
Assisted Extraction ◽  
Lower Protein ◽  
Ultrasonic Assisted ◽  
Ft Ir ◽  
The Difference ◽  
Optimized Conditions

In order to evaluate the antioxidant and α-glucosidase activities of polysaccharides from Chrysanthemum morifolium cv. Hangju (CMPs), the response surface methodology was applied to optimize the parameters for extraction progress of CMPs by ultrasound, with heat reflex extraction (HRE) performed as the control. The difference in the physicochemical properties of polysaccharides obtained by the two methods were also investigated. The maximum yields (8.29 ± 0.18%) of polysaccharides extracted by ultrasonic assisted extraction (UAE) were obtained under the optimized conditions of ultrasonic power 501 W, extraction time 19 min, and ratio of liquid-to-raw material 41 mL/g. Polysaccharides extracted by UAE possessed lower protein contents (2.56%) and higher uronic acids contents (7.08%) and low molecular weight fractions than that by HRE. No significant differences were found in monosaccharide composition and Fourier transform infrared (FT-IR) spectra of polysaccharides extracted by UAE and HRE, while polysaccharides by UAE possessed stronger antioxidant and α-glucosidase inhibitory activities. Therefore, UAE was an efficient way to obtain CMPs.

Ultrasonic-Assisted Extraction and Antioxidant Activities of Polysaccharides from Radix astragali

2013 ◽  
Vol 864-867 ◽  
pp. 549-552 ◽  
Author(s):  
Ming Wu ◽  
Chuan Fu Ma ◽  
Jun Man Kan ◽  
Li Quan Guo
Keyword(s):  
Superoxide Anion ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Radix Astragali ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction ◽  
Solid Liquid

Ultrasonic-assisted extraction (UAE) method was used to polysaccharides from Radix Astragali (RAP), and the orthogonal test was applied to optimize extraction conditions. Furthermore, the antioxidant activities of RAP were evaluated by DPPH and superoxide anion radical scavenging activities assay. The results indicated that the optimal conditions for RAP extraction as followings: solid/liquid ratios of 1:20, extraction time of 10 min, ultrasonic power of 65 W and extraction temperature of 60°C. Meanwhile, RAP had relatively higher scavenging activities on DPPH and superoxide anion radicals.

Studies on Total Flavonoids Extraction from Perilla using Ultrasonic-Assisted Extraction

2011 ◽  
Vol 236-238 ◽  
pp. 2945-2950
Author(s):  
Yuan Feng Wu ◽  
Jian Wei Mao ◽  
Shi Wang Liu ◽  
Huang Jun
Keyword(s):  
Weight Ratio ◽  
Extraction Rate ◽  
Raw Material ◽  
Total Flavonoids ◽  
Extraction Temperature ◽  
Volume Weight ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Optimal Extraction Condition ◽  
Optimum Extraction

The extraction of total flavonoids from Perilla, using ultrasonic-assisted method, was investigated in this work. Various extraction conditions, such as ethanol concentraction (V/V), volume-weight ratio between the extraction solution and the weight of Perilla (V/W), the extraction time (t), pH, temperature (T), agent concentration (c) have been investigated for their influences. With the help of orthogonal analysis, the optimum extraction conditions have been identified, an extraction rate of 0.97% could be achieved at an ethanol concentration of 60%, an extraction temperature of 50 °C, a volume-weight ratio of 30:1, an ultrasonication time of 50 min. Then 8 samples were screened under this optimal extraction condition, the extraction rate could be 1.71% when use the Perilla leave (production in Linan, Zhenjiang province) as raw material.

Ultrasonic-Assisted Extraction of Gardenia Yellow from Fructus Gardeniae

2011 ◽  
Vol 396-398 ◽  
pp. 1075-1078 ◽  
Author(s):  
Xi Ping Wang ◽  
Sheng Xiong Dong ◽  
Feng Chen
Keyword(s):  
Extraction Efficiency ◽  
Raw Material ◽  
Extraction Temperature ◽  
Orthogonal Experiments ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction ◽  
Extraction Parameters ◽  
Lower Temperature ◽  
Extracting Solvent

Gardenia yellow was extracted from fructus Gardeniae using water as extracting solvent by means of ultrasonic-assisted extraction (UAE). The effects of ratio of water to raw material, exaction time and temperature were investigated by single factor and orthogonal experiments. The results showed that the optimal extraction parameters were the extraction temperature of 40°C, ratio of water to raw material of 6:1, and time of 40 min. Under the conditions, the yield of gardenia yellow was 95.15% and the OD value was 1.51. The ratio of water to raw material had the most prominent effect on the process of UAE, followed by the time and then the temperature according to the statistical analysis of orthogonal experiments. Compared with traditional methods, UAE showed a better effect on the extraction efficiency of gardenia yellow from fructus Gardeniae at lower temperature as well as in a shorter time with higher yield when using water instead of organic solvents as extracting solvent.

scholarly journals Multiresponse Optimization of Ultrasonic-Assisted Extraction for Aurantii Fructus to Obtain High Yield of Antioxidant Flavonoids Using a Response Surface Methodology

Processes ◽  
2018 ◽  
Vol 6 (12) ◽  
pp. 258 ◽  
Author(s):  
Yingjie He ◽  
Yun Chen ◽  
Yiting Shi ◽  
Kanghong Zhao ◽  
Haiyan Tan ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Evaluation Method ◽  
Qualitative Evaluation ◽  
Raw Material ◽  
High Yield ◽  
Extraction Temperature ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

Aurantii fructus (zhiqiao, ZQ) is a traditional Chinese medicine (TCM) and raw material of TCM healthcare food (TCM-HF), mainly focused on the regulation of gastrointestinal disorders and the abundant application of antioxidants. Pharmacological investigations of ZQ flavonoids have identified them as the main bioactive components in recent years, but little has been reported on the extraction processes of antioxidant flavonoids (AFs). The aim of this study was to establish an efficient ultrasonic-assisted extraction (UAE) method for the extraction of AFs from ZQ using a response surface methodology (RSM), analyze the composition of AFs, and develop a qualitative evaluation method for ZQ. Flavonoid yield and antioxidant ability were selected as the responses to optimize the extraction of AFs, and the multiple effects of independent variables were investigated. The optimized conditions for the extraction of AFs based on the Box-Behnken design (BBD) were as follows: ethanol concentration, 58%; extraction temperature, 70 °C; and extraction time, 17 min. The flavonoid yield and antioxidant activity reached 241.70 mg/g and 59.42%, respectively, which matched the predicted values. Furthermore, optimized UAE processes were first established for the efficient and fast extraction of AFs. Flavanones and polymethoxyflavonoids (PMFs) were identified as potential AFs using time-of-flight mass spectrometry. Meanwhile, the quality of ZQ was evaluated using the criteria importance through intercriteria correlation (CRITIC) method for the first time, and Yuanjiang ZQ was considered as an excellent raw material of TCM-HF.

scholarly journals Response Surface Optimized Ultrasonic Assisted Extraction of Total Flavonoids from QingLi Cao and Antioxidant Activities

2015 ◽  
Vol 9 (1) ◽  
pp. 134-142 ◽  
Author(s):  
Xudong Jiang ◽  
YaoLing Liao ◽  
GuiXi Lu ◽  
Zhike Xiao
Keyword(s):  
Response Surface ◽  
Antioxidant Activities ◽  
Reducing Power ◽  
Total Flavonoids ◽  
Extraction Temperature ◽  
Ultrasound Assisted Extraction ◽  
Solid Ratio ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

An ultrasound-assisted extraction technique was used to extract the total flavonoids from QingLi Cao. The optimal conditions were ethanol concentration 59.20%, liquid-to-solid ratio 31.15 mL/g, extraction time 57.42 min and extraction temperature 58.57°C, which were determined using response surface methodology. The antioxidant activities including reducing power, ABTS+, DPPH, superoxide anion and hydroxyl radical were evaluated, which suggested significant antioxidant activities.

scholarly journals ULTRASOUND-ASSISTED EXTRACTION OF TOTAL FLAVONOIDS FROM LEAVES OF SYRINGA OBLATA LINDL.

2014 ◽  
Vol 44 (2) ◽  
pp. 131-135
Author(s):  
Z. SHENG ◽  
Y. WANG ◽  
P. WAN ◽  
Y. LI
Keyword(s):  
Antioxidant Activities ◽  
Biological Activities ◽  
Plant Sample ◽  
Solvent Ratio ◽  
Total Flavonoids ◽  
Extraction Temperature ◽  
Ultrasound Assisted Extraction ◽  
Extraction Technology ◽  
Assisted Extraction ◽  
Ultrasound Assisted

Leaves of Syringa Oblata Lindl. possess some important biological activities, such as antibacterial, antiviral, anti-inflammatory and antioxidant activities. These biological properties are mainly attributed to total flavonoids content. In this paper, ultrasound-assisted extraction of total flavonoids from leaves of Syringa Oblata Lindl. was studied. Effects of several experimental parameters, such as concentration of extracting solvent, ratio of liquid to material, extraction temperature, and time of sonication on extraction efficiencies of total flavonoids were evaluated. The best extraction conditions were: 1 g plant sample with 20 mL of 50% ethanol, at 60 °C for 50 min, obtaining a yield of total flavonoids of 92.00 ± 0.87 mg/g of plant. The results indicated that high amounts of total flavonoids can be extracted from leaves of Syringa Oblata Lindl. by ultrasound-assisted extraction technology.

scholarly journals Optimization of Ultrasonic-Assisted Extraction, Characterization, and Antioxidant Activities of Polysaccharides From Sojae Semen Praeparatum

2021 ◽  
Vol 16 (5) ◽  
pp. 1934578X2110206
Author(s):  
Yongshuai Jing ◽  
Ruijuan Zhang ◽  
Lan Li ◽  
Danshen Zhang ◽  
Yu Liu ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Deae Cellulose ◽  
Chemical Compositions ◽  
Hydroxyl Groups ◽  
Ultrasonic Frequency ◽  
Ultrasonic Power ◽  
Assisted Extraction ◽  
Ultrasonic Time ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

In this study, response surface methodology (RSM) was used to optimize the ultrasonic-assisted extraction parameters of Sojae Semen Praeparatum polysaccharides (SSPP-80), the optimum conditions were determined as follows: ultrasonic frequency of 100 W, ultrasonic power of 80 Hz, ultrasonic temperature of 52℃, ultrasonic time of 23 minutes, and liquid to raw material ratio of 40 mL/g. Based on these conditions, polysaccharides extraction rate was 7.72% ± 0.26%. Then, 2 novel polysaccharides (SSPP-80‐1, SSPP-80‐2) were isolated from SSPP by DEAE-cellulose 52 chromatography. The chemical compositions, physicochemical properties, and structure of SSPPs were investigated by simultaneous thermal analyzer (TGA), scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FI-IR), and high-performance liquid chromatography (HPLC). The results showed that SSPP-80 and 2 fractions were mainly composed of mannose (Man), glucose (Glc), galactose (Gal), xylose (Xyl), and arabinose (Ara). In addition, the antioxidant activities were evaluated against the DPPH and hydroxyl radical in vitro, the IC50 of SSPP-80, SSPP-80‐1 and SSPP-80‐2 against DPPH free radical were 4.407, 8.267, and 5.204 mg/mL, respectively, whereas the IC50values for removing hydroxyl groups were 5.318, 3.516, and 4.016 mg/mL, respectively. It demonstrated that SSPP-80 and 2 fractions had certain antioxidant activity. Theoretical basis for use of Sojae Semen Praeparatum polysaccharides was provided by this study.

Optimization of Ultrasonic-Assisted Extraction of Polysaccharides from Ottelia acuminata (Gagnep.) Dandy Using RSM

2011 ◽  
Vol 396-398 ◽  
pp. 292-296
Author(s):  
Ai Shi Zhu
Keyword(s):  
Processing Parameters ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Independent Variables ◽  
Solid Ratio ◽  
Assisted Extraction ◽  
Ultrasonic Technology ◽  
Ultrasonic Assisted ◽  
Experimental Yield ◽  
Ultrasonic Assisted Extraction

Ultrasonic technology was applied to polysaccharides extraction from Ottelia acuminata (Gagnep.) Dandy and Response Surface Methodology (RSM) was used to optimize the effects of processing parameters on polysaccharides yields. Three independent variables such as liquid-solid ratio (ml/g, X1), extraction temperature (°C, X2) and extraction time (hour, X3) were investigated respectively. The statistical analysis indicated that the three variables and the quadratic of X1 and X3 had significant effects on the yields and followed by the significant interaction effects between the variables of X1 and X3, X2 and X3 (p<0.05). A mathematical model with high determination coefficient was gained. The optimal extraction conditions of polysaccharides were determined as follows: liquid-solid ratio 43 ml/g, extraction temperature 90 °C and extraction time 3.45 hours. Under these conditions, the experimental yield of polysaccharides was 107.44 mg/g, which was agreed closely with the predicted value 108.71 mg/g.

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