Effect of Ultrasonic Wave on Lentinan Extraction

2011 ◽  
Vol 291-294 ◽  
pp. 1339-1343
Author(s):  
Wen Bo Zhang ◽  
Hong Rui Li ◽  
Jun Tao ◽  
Bing Bing Dong
Keyword(s):  
Extraction Efficiency ◽  
Hot Water ◽  
Water Extraction ◽  
Extraction Technique ◽  
Orthogonal Experimental Design ◽  
Extraction Temperature ◽  
Lentinus Edodes ◽  
Extraction Condition ◽  
Hot Water Extraction ◽  
Extraction Parameters

The research in this paper optimized the extraction technique of lentinan with ultrasonic assistant method on the basis of hot water extraction technique, and investigated the promoting function of ultrasound to polysaccharides extraction. Extraction condition was selected by means of orthogonal experimental design, four factors and three levels L9(34), after key elements were respectively chosen through single factor experiments. Comparison between optimal extraction parameters of two method, hot water extraction technique and ultrasonic assistant extraction technique, showed decreased extraction temperature and significantly shortened extraction time, which existed in the second means, improved the extraction efficiency. Lentinus edodes polysaccharide extracted with ultrasonic assistant technique, the extraction rate and polysaccharide content percentage increased 6.22% and 8.66% respectively, comparative to which extracted with hot water extraction technique.

scholarly journals Optimization of the extraction of galactoglucomannans from Pinus halepensis

Holzforschung ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nacera Benouadah ◽  
Andrey Pranovich ◽  
Djamel Aliouche ◽  
Jalel Labidi ◽  
Stefan Willför
Keyword(s):  
High Performance ◽  
Pinus Halepensis ◽  
Hot Water ◽  
Water Extraction ◽  
Chemical Degradation ◽  
Extraction Time ◽  
Size Exclusion ◽  
Hot Water Extraction ◽  
Extraction Processes ◽  
Extraction Parameters

AbstractThe effectiveness of pressurized hot-water extraction conditions for obtaining galactoglucomannans (GGMs) from Pinus halepensis suitable for applications like coatings and films packaging was investigated. For this purpose, high molar masses with high yields are required, presenting a serious challenge for hot-water extraction processes. The extraction of GGMs was carried out in an accelerated solvent extractor (ASE) and the isolation was performed by precipitation in ethanol. Three temperatures in the range 160–180 °C and five extraction times 5–90 min were tested in order to optimize extraction parameters of GGMs, avoiding thermal and chemical degradation in hot-water. Total dissolved solids (TDS) were determined gravimetrically after freeze-drying and weight average molar masses (Mw) were determined by high-performance size exclusion chromatography (HPSEC). Total non-cellulosic carbohydrates were determined by gas chromatography (GC) after acid methanolysis. Free monomers were additionally analyzed by GC. Lignin in water extracts was measured by an ultraviolet (UV) method. Acetic acid was determined after alkaline hydrolysis of acetyl groups and analyzed by HPSEC. The main parameters influencing the extraction processes of the GGMs, namely, extraction time and temperature were studied. Optimal extraction parameters of GGMs were identified at 170 °C and 20 min extraction time, with average Mw of extracted fraction of 7 kDa leading to a GGM yield of approximately 56 ${\text{mgg}}_{\text{o}.\text{d}.\text{m}}^{-1}$, corresponding to 6% on dry wood basis.

scholarly journals Comparing of hot water and acid extraction of polysaccharides from proso millet

2017 ◽  
Vol 23 (1) ◽  
pp. 141-150
Author(s):  
Aishi Zhu ◽  
Shanshan Liu ◽  
Kanfeng Wu ◽  
Chuan Ren ◽  
Maoqian Xu
Keyword(s):  
Polynomial Equation ◽  
Hot Water ◽  
Water Extraction ◽  
Acid Extraction ◽  
Extraction Temperature ◽  
Hot Water Extraction ◽  
Solid Ratio ◽  
Proso Millet ◽  
Acid Aqueous Solution ◽  
Experimental Yield

The extraction of polysaccharides from proso millet was investigated experimentally using hot water and acid aqueous solution. Response surface methodology, based on a three-level, three- or four-variable Box-Behnken design for hot water extraction or acid extraction, respectively, was employed to obtain the best possible combination of acid concentration, liquid-solid ratio, extraction time, and extraction temperature for maximum polysaccharides yield. The obtained experimental data were fitted to a second-order polynomial equation and analyzed by appropriate statistical methods. The corresponding optimum extraction conditions of each method were obtained. Under the optimum conditions, the experimental yield was well in close agreement with the predicted value by the model. The results showed that the polysaccharides yield of acid extraction was 42.13 mg g-1, significantly higher than 20.07 mg g-1 of the yield of hot water extraction, the obtained equation could be used to predict the extraction experimental results.

scholarly journals Extraction Efficiency of a Commercial Espresso Machine Compared to a Stainless-Steel Column Pressurized Hot Water Extraction (PHWE) System for the Determination of 23 Pharmaceuticals, Antibiotics and Hormones in Sewage Sludge

2019 ◽  
Vol 9 (7) ◽  
pp. 1509 ◽  
Author(s):  
Ola Svahn ◽  
Erland Björklund
Keyword(s):  
Stainless Steel ◽  
Sewage Sludge ◽  
Extraction Efficiency ◽  
Chemical Properties ◽  
Hot Water ◽  
Water Extraction ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction ◽  
Steel Column ◽  
Stainless Steel Column

Two green chemistry extraction systems, an in-house stainless-steel column Pressurized Hot Water Extraction system (PHWE) and a commercially available Espresso machine were applied for analysing 23 active pharmaceutical ingredients (APIs) in sewage sludge. Final analysis was performed on UPLC-MS/MS using two different chromatographic methods: acid and basic. When analysing all 23 APIs in sewage sludge both extraction methods showed good repeatability. The PHWE method allowed for a more complete extraction of APIs that were more tightly bound to the matrix, as exemplified by much higher concentrations of e.g., ketoconazole, citalopram and ciprofloxacin. In total, 19 out of 23 investigated APIs were quantified in sewage sludge, and with a few exceptions the PHWE method was more exhaustive. Mean absolute recoveries of 7 spiked labelled APIs were lower for the PHWE method than the Espresso method. Under acid chromatographic conditions mean recoveries were 16% and 24%, respectively, but increased to 24% and 37% under basic conditions. The difference between the PHWE method and the Espresso method might be interpreted as the Espresso method giving higher extraction efficiency; however, TIC scans of extracts revealed a much higher matrix co-extraction for the PHWE method. Attempts were made to correlate occurrence of compounds in sewage sludge with chemical properties of the 23 APIs and there are strong indications that both the number of aromatic rings and the presence of a positive charge is important for the sorption processes to sewage sludge.

scholarly journals Optimization of extraction parameters of Pleurotus eryngii polysaccharides and evaluation of the hypolipidemic effect

RSC Advances ◽  
2020 ◽  
Vol 10 (20) ◽  
pp. 11918-11928
Author(s):  
Yuanyuan Zhao ◽  
Xuefeng Chen ◽  
Yanni Zhao ◽  
Wei Jia ◽  
Xiangna Chang ◽  
...  
Keyword(s):  
Fruiting Body ◽  
Pleurotus Eryngii ◽  
Hot Water ◽  
Water Extraction ◽  
Hypolipidemic Effect ◽  
Hot Water Extraction ◽  
Extraction Parameters

The hot water extraction of polysaccharides from the fruiting body of Pleurotus eryngii was studied.

Optimization of Extraction Condition of Mycelium Polysaccharide from Tricholoma mongolium by Response Surface Methodology

2011 ◽  
Vol 361-363 ◽  
pp. 770-776
Author(s):  
Xiao Tong Wu ◽  
Qi Wei Ren ◽  
Jie Zhang ◽  
Ji Zhao ◽  
Su Ting Han ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Hot Water ◽  
The Other ◽  
Extraction Temperature ◽  
Single Factor ◽  
Extraction Condition ◽  
Hot Water Extraction ◽  
Solid Ratio ◽  
Optimum Extraction

In this paper, the hot water extraction conditions of mycelium polysaccharide ofTricholoma mongoliumwere investigated. By single-factor experiments, ethanol amount was determined at three times and the other factors (liquid–solid ratio, extraction temperature and time) were chosen to further optimize extraction conditions using response surface methodology (RSM). The Center Composite experimental results showed the optimum extraction conditions as follows: a temperature of 85.38°C, a liquid–solid ratio of 31.78 g/ mL and a extraction time of 2.18 h. Under these conditions, two extractions sufficiently reached the maximal the rate of mycelium polysaccharide 7.23%.

scholarly journals Selective Extraction of Cannabinoid Compounds from Cannabis Seed Using Pressurized Hot Water Extraction

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1335 ◽  
Author(s):  
Yannick Nuapia ◽  
Hlanganani Tutu ◽  
Luke Chimuka ◽  
Ewa Cukrowska
Keyword(s):  
Cannabis Sativa ◽  
Polar Compounds ◽  
Hot Water ◽  
Water Extraction ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Plant Materials ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction ◽  
Cannabinoid Compounds

Phytochemicals of Cannabis sativa mainly for the use in the different industries are that of delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). Pressurized hot water extraction (PHWE) is seen as an efficient, fast, green extraction technique for the removal of polar and semi-polar compounds from plant materials. The PHWE technique was applied to extract cannabinoid compounds from Cannabis sativa seed. Response surface methodology was used to investigate the influence of extraction time (5–60 min), extraction temperature (50–200 °C) and collector vessel temperature (25–200 °C) on the recovery of delta-9-tetrahydrocannabinol (THC), cannabinol (CBN), cannabidiol (CBD), cannabichromene (CBG) and cannabigerol (CBC) from Cannabis sativa seed by PHWE. The identification and semi quantification of cannabinoid compounds were determined using GCXGC-TOFMS. The results obtained from different extractions show that the amount of THC and CBN was drastically decreasing in the liquid extract when the temperature rose from 140 to 160 °C in the extraction cell and the collector′s vessel. The optimal conditions to extract more CBD, CBC, and CBG than THC and CBN were set at 150 °C, 160 °C and 45 min as extraction temperature, the temperature at collector vessel, and the extraction time, respectively. At this condition, the predicted and experimental ratio of THCt (THC + CBN)/CBDt (CBD + CBC+ CBG) was found to be 0.17 and 0.18, respectively. Therefore, PHWE can be seen as an alternative to the classic extraction approach as the efficiency is higher and it is environmentally friendly.

BIOREFINERY. Pressurised hot water extraction of acetylated xylan from birch sawdust

2012 ◽  
Vol 27 (4) ◽  
pp. 680-688 ◽  
Author(s):  
Petri Kilpeläinen ◽  
Kaisu Leppänen ◽  
Peter Spetz ◽  
Veikko Kitunen ◽  
Hannu Ilvesniemi ◽  
...  
Keyword(s):  
Degradation Products ◽  
Degree Of Polymerization ◽  
Water Soluble ◽  
Hot Water ◽  
Water Extraction ◽  
Extraction Temperature ◽  
Hot Water Extraction ◽  
Flow Through

Abstract Birch sawdust was extracted using pressurized hot water (PHW), with the ultimate aim of maximizing the yield of large and intact non-cellulosic heteropolysaccharides, i.e. hemicellulose molecules. The extractions were performed using a flow-through vessel. Effects of different extraction temperatures between 140 and 200°C were evaluated. The amount of extracted xylans, as weil as monosaccharides, increased as the temperature rose to 1 90°C, accordingly the degree of polymerization of the xylans decreased. The extracted xylans retained most of the native acetyl groups and were thereby water-soluble after the extraction. The PHW extract contained not only xylan and other hemicellulose-derived oligomers, but fragmented Iignin molecules and some extractives as well. Only trace amounts of furfurals were found in the extract at lower extraction temperatures. An optimal yield of water-soluble, polymeric xylans with the smallest amount of unwanted impurities and degradation products was thus achieved at an extraction temperature of 1 80°C using the flow-through vessel

Optimization of ultrasonic extraction of Lycium barbarum polysaccharides using response surface methodology

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jitian Song ◽  
Shi Dongqi ◽  
Su Hang ◽  
Feng Yongxia ◽  
Tian Wei
Keyword(s):  
High Efficiency ◽  
Hot Water ◽  
Ultrasonic Extraction ◽  
Water Extraction ◽  
Extraction Time ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Lycium Barbarum ◽  
Hot Water Extraction

AbstractUltrasonic extraction was a new development method to achieve high-efficiency extraction of Lycium barbarum polysaccharides instead of hot water extraction. In this paper, the single factor method combined with the box Behnken design of response surface method was used to study the influence of extraction time, extraction temperature, material liquid ratio and ultrasonic power on the extraction rate of L. barbarum polysaccharide. The results indicated that the best extraction rate of L. barbarum polysaccharide was 12.54 ± 0.12% under the conditions of 80 min for extraction time, 73 °C for extraction temperature, 1 g:38 mL for material to liquid ratio, and 185 W for ultrasonic power. Under the same operating conditions, the yield of L. barbarum polysaccharide using ultrasonic extraction was 83.3%, which was higher than that hot water extraction. Moreover, the extraction time of ultrasonic extraction was only 47% of that using hot water extraction. This suggested that there was great potentials of using ultrasonic extraction in the realization of high-efficiency extraction of L. barbarum polysaccharide. The results of this study could also provide a theoretical basis for the coupling of ultrasonic extraction and ultrasonic concentration process to develop the integrated equipment of both ultrasonic extraction and ultrasonic concentration.

scholarly journals Pressurized Hot Water Extraction of Okra Seeds Reveals Antioxidant, Antidiabetic and Vasoprotective Activities

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1645
Author(s):  
Eng Shi Ong ◽  
Christina Liu Ying Oh ◽  
Joseph Choon Wee Tan ◽  
Su Yi Foo ◽  
Chen Huei Leo
Keyword(s):  
Biological Activities ◽  
Vascular Inflammation ◽  
Single Step ◽  
Polyphenolic Compounds ◽  
Hot Water ◽  
Water Extraction ◽  
Extraction Temperature ◽  
Hot Water Extraction ◽  
Pressurized Hot Water Extraction ◽  
Different Parts

Abelmoschus esculentus L. Moench (okra) is a commonly consumed vegetable that consists of the seeds and peel component which are rich in polyphenolic compounds. The aim of this study is to utilize pressurized hot water extraction (PHWE) for the extraction of bioactive phytochemicals from different parts of okra. A single step PHWE was performed at various temperatures (60 °C, 80 °C, 100 °C and 120 °C) to determine which extraction temperature exhibits the optimum phytochemical profile, antioxidant and antidiabetic activities. The optimum temperature for PHWE extraction was determined at 80 °C and the biological activities of the different parts of okra (Inner Skin, Outer Skin and Seeds) were characterized using antioxidant (DPPH and ABTS), α-glucosidase and vasoprotective assays. Using PHWE, the different parts of okra displayed distinct phytochemical profiles, which consist of primarily polyphenolic compounds. The okra Seeds were shown to have the most antioxidant capacity and antidiabetic effects compared to other okra parts, likely to be attributed to their higher levels of polyphenolic compounds. Similarly, okra Seeds also reduced vascular inflammation by downregulating TNFα-stimulated VCAM-1 and SELE expression. Furthermore, metabolite profiling by LC/MS also provided evidence of the cytoprotective effect of okra Seeds in endothelial cells. Therefore, the use of PHWE may be an alternative approach for the environmentally friendly extraction and evaluation of plant extracts for functional food applications.

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