Analysis of fatty acids in <i>A. szechenyianum</i> Gay. by microwave‐assisted extraction and gas chromatography‐mass spectrometry

Qu, Wen-Xia; Mou, Zhao-Li; Cui, Haiyan; Zhang, Zhiqi

doi:10.1002/pca.1265

Cited by 14 publications

(13 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Significantly, the prospect of extracting levoglucosan, a building block for producing polymers and a feedstock for fermentation, has been demonstrated. [8][9][10][11][12][13][14][15][16] …”

Section: Resultsmentioning

confidence: 99%

“…Journal of Analytical and Applied Pyrolysis 127 (2017) [8][9][10][11][12][13][14][15][16] in CCI could be attributable to a (i) higher cellulose content (≈26%) in this study (Table 1) as against (22%) [6] and (ii) better resolved XRD for BSG showing defined peaks for I am and I 002 in which intensities values could be easily determined than the broad unresolved XRD pattern for BSG of Santos et al [6]. Cellulose in BSG can be used to produce levoglucosan, a valuable chemical building block, via pyrolysis.…”

Section: Ao Balogun Et Almentioning

confidence: 99%

“…Though they occupy a relatively small proportion of the matrix, they may be isolated as renewable feedstock for varied applications. In pharmaceutical applications, the therapeutic effects of extracts from biomass have been underscored [8]. Lipid extracts may serve as raw materials for biodiesel production.…”

Section: Introductionmentioning

confidence: 99%

“…From the foregoing, the continuous generation of BSG has raised significant environmental and economic concerns; thus necessitating the search for alternative uses [1,3,6]. Being a lignocellulosic material, composed of an intricate matrix of cellulose and hemicellulose polysaccharides, lignin and extractives, it could be an ideal feedstock for thermochemical conversion and other valorisation processes [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Thermo-kinetic, spectroscopic study of brewer’s spent grains and characterisation of their pyrolysis products

Balogun

Sotoudehniakarani

McDonald

2017

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

A B S T R A C TBrewer's spent grains, major by-products of the beverage industries, were obtained from a Nigerian brewery and subjected to pyrolysis at 500°C. Analytical pyrolysis (Py-GC/MS) was conducted on the original BSG, extractivefree BSG and BSG CH 2 Cl 2 extract. There was a marked difference in the concentration of levoglucosan between the extractive-free BSG (40.5%) and the original BSG (11.5%). The Py-GC/MS detected significant amount of palmitic and oleic acids in the three samples. Prior to pyrolysis, the extractives content were isolated through methanolysis, transesterified and subjected to GC/MS analysis. The analysis revealed the presence of linoleic, oleic and palmitic acids in an appreciable quantity. The BSG and its biochar were also characterised according to Fourier transform infrared and Raman spectroscopic, and thermogravimetric analyses alongside some conventional physico-chemical analysis. The total crystallinity and condensation indices were evaluated from specific FTIR spectra peaks so as to monitor structural transformations in the bio-char. Kinetic data were deduced from TGA measurements and it was apparent that thermal decomposition of BSG is better modelled as a multi-step reaction mechanism. The nitrogen content of the bio-char was relatively high making it a suitable feedstock for the production of in situ nitrogenised activated bio-carbon. There was a significant variation between the structural configuration of the original BSG and the bio-char as revealed by the change in the value of the condensation index as well as the cellulose crystallinity content. It may thus be concluded that the BSG biomass would be a viable feedstock for thermal decomposition and other valorisation processes.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Ao Balogun Et Almentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermo-kinetic, spectroscopic study of brewer’s spent grains and characterisation of their pyrolysis products

Balogun

Sotoudehniakarani

McDonald

2017

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

show abstract

“…According to previous reports on MAE (Zhou et al 2011Qu et al 2011), extraction time is not a key factor because MAE is a fast process. One variable at a time experiments demonstrated that three factors, solvent concentration, liquid to solid ratio, and microwave power, could significantly affect the extraction rate at a fixed extraction time, and sample particle size had no significant effect on almond protein extraction.…”

Section: Optimization Of Process Parameters Using Bbdmentioning

confidence: 87%

Development of an Aqueous Polyethylene Glycol-Based Extraction and Recovery Method for Almond (Prunus armeniaca L.) Protein

Shi

Wang

et al. 2016

Food Anal. Methods

Self Cite

View full text Add to dashboard Cite

A novel method for protein extraction from sweet almonds with aqueous polyethylene glycol (PEG) as solvent and recovery from the extraction solution was developed. The extraction yields of different solvents, such as sodium hydroxide, sodium chloride, PEG 200, PEG 400, and PEG 600 aqueous solutions, were investigated and PEG 200 showed the highest extraction efficiency. The PEG-based microwave-assisted extraction (MAE) parameters were then optimized using response surface methodology. Under optimum condition, PEG 200 concentration of 25 % (w/w), liquid to solid ratio of 22 mL g −1 , microwave power of 120 W, extraction temperature of 45°C, and extraction time of 4 min, the average extraction yield was 93.75 ± 3.15 %. Subsequently, the almond protein was recovered from the extraction solution containing PEG with an isoelectric point-ethanol synergy precipitation protocol. The combined technique integrated the speed of isoelectric point precipitation with the completeness of alcohol precipitation. The recovery of almond protein was 98.81 % with a time of 3-5 min. The proposed PEG-based MAE and synergy precipitation protocol provide a rapid and effective method for almond protein extraction and recovery and have the potential to be used for other plant proteins.

show abstract

Comparison of microwave‐assisted and conventional extraction of mangiferin from mango (Mangifera indicaL.) leaves

Zou

et al. 2013

J of Separation Science

View full text Add to dashboard Cite

Mangiferin is the main bioactive component in mango leaves, which possesses anti-inflammatory, antioxidative, antidiabetic, immunomodulatory, and antitumor activities. In the present study, a microwave-assisted extraction method was developed for the extraction of mangiferin from mango leaves. Some parameters such as ethanol concentration, liquid-to-solid ratio, microwave power, and extraction time were optimized by single-factor experiments and response surface methodology. The optimal extraction conditions were 45% ethanol, liquid-to-solid ratio of 30:1 (mL/g), and extraction time of 123 s under microwave irradiation of 474 W. Under optimal conditions, the yield of mangiferin was 36.10 ± 0.72 mg/g, significantly higher than that of conventional extraction. The results obtained are beneficial for the full utilization of mango leaves and also indicate that microwave-assisted extraction is a very useful method for extracting mangiferin from plant materials.

show abstract

Analysis of fatty acids in A. szechenyianum Gay. by microwave‐assisted extraction and gas chromatography‐mass spectrometry

Cited by 14 publications

References 20 publications

Thermo-kinetic, spectroscopic study of brewer’s spent grains and characterisation of their pyrolysis products

Thermo-kinetic, spectroscopic study of brewer’s spent grains and characterisation of their pyrolysis products

Development of an Aqueous Polyethylene Glycol-Based Extraction and Recovery Method for Almond (Prunus armeniaca L.) Protein

Comparison of microwave‐assisted and conventional extraction of mangiferin from mango (Mangifera indicaL.) leaves

Contact Info

Product

Resources

About