Effect of Ethanol Treatment on Lycopene Extraction yield

2018 ◽  
Author(s):  
Nam Kyong-il ◽  
KIM rak-chon ◽  
Kang chang-hyok ◽  
Lee song-nam ◽  
Ryom sok-hun
Keyword(s):  
Antioxidant Activity ◽  
Treatment Time ◽  
Extraction Yield ◽  
Extraction Rate ◽  
Test Results ◽  
Ethanol Treatment ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Pretreatment Method ◽  
Ethanol Pretreatment

In order to extract lycopene more effectively, this experiment focused on the optimization of ethanol pretreatment method to study the effects of ethanol treatment on the extraction rate of lycopene and its antioxidant activity. The test results show that 2 times ethanol treatment is very effective for improving lycopene yield. The optimum conditions of ethanol treatment are temperature 50 ℃, treatment time 1 time 2h, 2 times 2h, solid to liquid ratio is 1:12. The lycopene yield can be reached 20mg / 100g above.

Effect of Ethanol Treatment on Lycopene Extraction yield

2018 ◽  
Author(s):  
Nam Kyong-il ◽  
KIM rak-chon ◽  
Kang chang-hyok ◽  
Lee song-nam ◽  
Ryom sok-hun
Keyword(s):  
Antioxidant Activity ◽  
Treatment Time ◽  
Extraction Yield ◽  
Extraction Rate ◽  
Test Results ◽  
Ethanol Treatment ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Pretreatment Method ◽  
Ethanol Pretreatment

In order to extract lycopene more effectively, this experiment focused on the optimization of ethanol pretreatment method to study the effects of ethanol treatment on the extraction rate of lycopene and its antioxidant activity. The test results show that 2 times ethanol treatment is very effective for improving lycopene yield. The optimum conditions of ethanol treatment are temperature 50 ℃, treatment time 1 time 2h, 2 times 2h, solid to liquid ratio is 1:12. The lycopene yield can be reached 20mg / 100g above.

scholarly journals Ultrasound-Assisted Extraction of Polyphenols from Crude Pollen

Antioxidants ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 322 ◽  
Author(s):  
Mircea Oroian ◽  
Florin Ursachi ◽  
Florina Dranca
Keyword(s):  
Extraction Efficiency ◽  
Phenolic Content ◽  
Extraction Yield ◽  
Total Phenolic ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasonic Process ◽  
Solid Liquid

The aim of this study was to evaluate the extraction efficiency of polyphenols from crude pollen by an ultrasonic process. Prior to the polyphenols extraction, the crude pollen was defatted. The extraction from defatted pollen was carried out by varying four extraction parameters: ultrasonic amplitude (20%, 60% and 100%), solid/liquid ratio (10 g/L, 20 g/L and 30 g/L), temperature (35, 50 and 65 °C) and time (10, 20 and 30 min). The extracts were analyzed in terms of extraction yield (%), total phenolic content (TPC) and total flavones content (TFC). The extracted oil was analyzed in terms of fatty acids composition; myristic acid (159.1 µg × g−1) and cis-14-pentadecenoic acid (106.6 µg·g−1) were found in the highest amount in the pollen oil. The optimum conditions of extraction were determined and were, as follows: 100% amplitude of ultrasonic treatment, 30 g/L solid/liquid ratio, 40.85 °C and 14.30 min, which led to the extraction of 366.1 mg GAE/L of TPC and 592.2 mg QE/g of TFC, and also to an extraction yield of 1.92%.

scholarly journals Improvement of Soybean Oil Solvent Extraction through Enzymatic Pretreatment

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
F. V. Grasso ◽  
P. A. Montoya ◽  
C. C. Camusso ◽  
B. G. Maroto
Keyword(s):  
Solvent Extraction ◽  
Soybean Oil ◽  
Diffusion Coefficients ◽  
Extraction Yield ◽  
Extraction Rate ◽  
Optimum Conditions ◽  
Enzymatic Pretreatment ◽  
Cell Structures ◽  
Proposed Model ◽  
And Diffusion

The purpose of this study is to evaluate multienzyme hydrolysis as a pretreatment option to improve soybean oil solvent extraction and its eventual adaptation to conventional processes. Enzymatic action causes the degradation of the cell structures that contain oil. Improvements in terms of extraction, yield, and extraction rate are expected to be achieved. Soybean flakes and collets were used as materials and hexane was used as a solvent. Temperature, pH, and incubation time were optimized and diffusion coefficients were estimated for each solid. Extractions were carried out in a column, oil content was determined according to time, and a mathematical model was developed to describe the system. The optimum conditions obtained were pH 5.4,38°C, and 9.7 h, and pH 5.8,44°C, and 5.8𲀉h of treatment for flakes and collets, respectively. Hydrolyzed solids exhibited a higher yield. Diffusion coefficients were estimated between 10-11and 10-10. The highest diffusion coefficient was obtained for hydrolyzed collets. 0.73 g oil/mL and 0.7 g oil/mL were obtained at 240 s in a column for collets and flakes, respectively. Hydrolyzed solids exhibited a higher yield. The enzymatic incubation accelerates the extraction rate and allows for higher yield. The proposed model proved to be appropriate.

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

Study on Extraction of Total Flavonoids from Licorice with Ultrasonic Assistance and Antioxidant Activity

2012 ◽  
Vol 550-553 ◽  
pp. 1629-1632 ◽  
Author(s):  
Yu Hong Zou ◽  
Qiu Xia Han ◽  
Lin Guo
Keyword(s):  
Antioxidant Activity ◽  
Ethanol Concentration ◽  
Extraction Process ◽  
Free Radical Scavenger ◽  
Extraction Rate ◽  
Radical Scavenger ◽  
Total Flavonoids ◽  
Ultrasonic Power ◽  
Liquid Ratio ◽  
Solid Liquid

To optimize the extraction process of total flavonoids from RADIX RHIZOMA GLYCYRRHIZAE and Study on the Antioxidant Activity. Total flavonoids were extracted from RADIX RHIZOMA GLYCYRRHIZAE with ethanol by ultrasonic-assisted method, whose extraction process was optimized by orthogonal test design.The scavenging effect of pumpkin polysaccharide on OH and O2-were studied by salicylic acid and pyrogallic acid method. The optimum extraction process was as follows: ethanol concentration of 75%, solid-liquid ratio of 1:25,ultrasonic power of 350 W and ultrasonic duration of 25 min.Under the above conditions, the extraction rate of total flavonoids reached as high as 1.943%. The influencing order of each factor on extraction rate of polysaccharides was determined to be: ethanol concentration＞solid-liquid ratio＞ultrasonic power＞ultrasonic duration. When the solution concentration is 1.1296mg/ml, the scavenging rate of crude flavonoids on superoxide radical is 50%.Suggesting that it would be an effctive natural free radical scavenger. The study could provide a scientific basis for the further exploitation and utilization of RADIX RHIZOMA GLYCYRRHIZAE

scholarly journals Microwave-Assisted Extraction of Curcuma longa L. Oil: Optimization, Chemical Structure and Composition, Antioxidant Activity and Comparison with Conventional Soxhlet Extraction

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1516
Author(s):  
Rut Fernández-Marín ◽  
Susana C. M. Fernandes ◽  
María A. Andrés ◽  
Jalel Labidi
Keyword(s):  
Antioxidant Activity ◽  
Curcuma Longa ◽  
Antioxidant Properties ◽  
Soxhlet Extraction ◽  
Extraction Yield ◽  
Total Phenolic ◽  
Microwave Assisted Extraction ◽  
Optimum Conditions ◽  
Microwave Assisted ◽  
Assisted Extraction

Curcuma root (Curcuma longa L.) is a very important plant in gastronomy and medicine for its unique antiseptic, anti-inflammatory, antimicrobial and antioxidant properties. Conventional methods for the extraction of curcuma oil require long extraction times and high temperatures that can degrade the active substances. Therefore, the objectives of the present study were: (i) first, to optimize the extraction yield of curcuma oil by applying a Box-Behnken experimental design using surface response methodology to the microwave-assisted extraction (MAE) technique (the independent variables studied were reaction time (10–30 min), microwave power (150–200 W) and curcuma powder/ethanol ratio (1:5–1:20; w/v); and, (ii) second, to assess the total phenolic content (TPC) and their antioxidant activity of the oil (at the optimum conditions point) and compare with the conventional Soxhlet technique. The optimum conditions for the MAE were found to be 29.99 min, 160 W and 1:20 w/v to obtain an optimum yield of 10.32%. Interestingly, the oil extracted by microwave-assisted extraction showed higher TPC and better antioxidant properties than the oil extracted with conventional Soxhlet technique. Thus, it was demonstrated that the method applied for extraction influences the final properties of the extracted Curcuma longa L. oil.

scholarly journals Effects of Ultrasound Treatment on Extraction and Rheological Properties of Polysaccharides from Auricularia Cornea var. Li.

Molecules ◽  
2019 ◽  
Vol 24 (5) ◽  
pp. 939 ◽  
Author(s):  
Yinping Wang ◽  
Cuina Wang ◽  
Mingruo Guo
Keyword(s):  
Particle Size ◽  
Rheological Properties ◽  
Extraction Yield ◽  
Hot Water ◽  
Ultrasound Treatment ◽  
Extraction Rate ◽  
Raw Material ◽  
Extraction Temperature ◽  
Optimum Conditions ◽  
Significant Difference

Auricularia cornea var. Li. is an edible fungi and polysaccharides in Auricularia cornea var. Li. may have bioactive activities. Polysaccharides from Auricularia cornea var. Li. (ACP) was extracted using ultrasound-assisted extraction (UAE) method and compared with hot water extraction (HWE) for extraction yield, extraction rate, purity of polysaccharides, microstructure of residues after extraction, preliminary structure and rheological properties of polysaccharides. Optimum conditions for UAE (particle size of 150–200 mesh, water to raw material ratio of 70:1, extraction temperature at 70 °C for 40 min, ultrasonic amplitude of 40%) and HWE (particle size of 150–200 mesh, water to raw material ratio of 60:1, extraction temperature at 90 °C for 3.0 h) were obtained via single-factor experiment. Under optimum conditions, extraction yield of polysaccharides by UAE was 30.99 ± 1.93% which showed no significant difference with that by HWE (30.35 ± 1.67%) (P > 0.05). Extraction rate (29.29 ± 1.41%) and purity (88.62 ± 2.80%) of polysaccharides by UAE were higher than those by HWE (extraction rate of 24.95 ± 2.78% and purity of 75.33 ± 6.15%) (P < 0.05). Scanning Electron Microscopy (SEM) images of residues by UAE showed more broken cells than those by HWE. Fourier Transform Infrared (FTIR) spectra showed that the dialyzed ACP extracted by HWE and UAE (DACP-HWE and DACP-UAE) had similar characteristic absorption peaks of polysaccharides. Both DACP-HWE and DACP-UAE solutions showed typical shear thinning and temperature-independent behaviors (25–90 °C) and UAE resulted in polysaccharides with remarkably lower viscosity in comparison with HWE. DACP-UAE solutions exhibited more liquid-like state while DACP-HWE solutions solid-like system. Data indicated that ultrasound treatment may be a useful means for extraction of polysaccharides from Auricularia cornea var. Li.

scholarly journals Effect of Freeze-Thaw Pretreatment on Extraction Yield and Antioxidant Bioactivity of Corn Carotenoids (Lutein and Zeaxanthin)

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Yan Jiao ◽  
Dajing Li ◽  
Ying Chang ◽  
Yadong Xiao
Keyword(s):  
Antioxidant Activity ◽  
Freezing Temperature ◽  
Extraction Yield ◽  
Low Energy ◽  
Corn Gluten Meal ◽  
Untreated Sample ◽  
Pretreatment Method ◽  
Freeze Thaw ◽  
Corn Gluten ◽  
Pretreatment Conditions

As a green and low-energy pretreatment method, the effect of freeze-thaw (FT) pretreatment on extraction yield and antioxidant bioactivity of carotenoids of the corn gluten meal (CGM) were evaluated in this study. The CGM particles ruptured in FT treatment due to the repeated damage caused by FT to CGM particles. The carotenoid compounds of pretreated CGM were lutein, zeaxanthin, β-carotene, and cryptoxanthin. Among them, the major carotenoids are lutein and zeaxanthin. The optimized FT pretreatment conditions included freezing temperature of −20°C, moisture content of 100%, and 2 cycles. An increase in the yield of lutein and zeaxanthin was observed in the range of 2.23–16.39 µg/g and 4.66–36.3 µg/g as a result of pretreatment as against 1.17 and 2.52 µg/g of the untreated sample, respectively. Moreover, the release of lutein and zeaxanthin from CGM was facilitated by FT pretreatment and increased the antioxidant activity of the carotenoids.

Optimization of the Water Extraction Technology of Flavonoids in Emilia Sonchifolia (Linn.) DC

2013 ◽  
Vol 634-638 ◽  
pp. 1016-1021
Author(s):  
Li Sheng Wang ◽  
Wei Wang ◽  
Yan Ge ◽  
Jiangtao Tang
Keyword(s):  
Extraction Yield ◽  
Water Extraction ◽  
Extraction Time ◽  
Single Factor ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Extraction Technology ◽  
Orthogonal Experiments ◽  
Solid Liquid

Single factor experiments and orthogonal experiments were successively carried out to optimize the water extraction technology of flavonoids in Emilia sonchifolia (Linn.) DC. The results showed that the influential order of factors was extraction times >solid-liquid ratio >extraction time. The optimum conditions were 15:1 of solid-liquid ratio, 2h of the extraction time and 3 of the extraction times. Under these conditions, the extraction yield of flavonoids from Emilia sonchifolia (Linn.) DC was 3.35%.

scholarly journals Production of Sterilizing Agents fromCalendula officinalisExtracts Optimized by Response Surface Methodology

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Fatih Mehmet Goktas ◽  
Bilgesu Sahin ◽  
Sibel Yigitarslan
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Maximum Yield ◽  
Extraction Yield ◽  
Extraction Temperature ◽  
Optimum Conditions ◽  
Calendula Officinalis ◽  
Liquid Ratio ◽  
Symbiotic Relation ◽  
Temperature Time

The aim of this study was to produce hand sterilizing liquid and wet wipes with the extracts ofCalendula officinalis. Since this plant has well known antimicrobial activity due to its phytochemical constituents, the increase in the extraction yield was chosen as the principle part of the production process. To achieve the maximum yield, parameters of solid-to-liquid ratio, extraction temperature, and time were studied. The optimum conditions were determined by response surface methodology as 41°C, 7 h, and 3.3 g/200 mL for temperature, time, and solid-to-liquid ratio, respectively. The yield achieved at those conditions was found to be 90 percent. The highest amounts of flavonoids were detected at optimum, whereas the highest triterpene and saponin constituents were determined at different design points. The microbial efficiencies of extracts were determined by the inhibition of the growth of selected microorganisms. Different dilution rates and interaction times were used as parameters of inhibition. Not any of the constituent but symbiotic relation in-between reached the highest inhibition of 90 percent. The pH values of the extracts were 5.1 to 5.4. As a result, the extraction ofCalendula officinalisat the optimum conditions can be used effectively in the production of wet wipes and hand sterilizing liquid.

Sign in / Sign up

Export Citation Format

Share Document