Qualitative analysis of bio oils of agricultural residues obtained through pyrolysis using comprehensive two dimensional gas chromatography with time-of-flight mass spectrometric detector

Moraes, Maria Silvana Aranda; Migliorini, Marcelo Vieira; Damasceno, Flaviana Cardoso; Georges, Fernando; Almeida, Suelen R.; Zini, Cláudia Alcaraz; Jacques, Rosângela Assis; Caramão, Elina Bastos

doi:10.1016/j.jaap.2012.05.007

Cited by 76 publications

(62 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…69 Moreover, the potential effect of ANPs might be due to their inhibitory effects on the peroxy radicals, which are the propagators of lipid peroxidation. 70 The nitric oxide scavenging activity of ANPs is presented in Figure 10. ANPs possessed lower nitric oxide scavenging activity (25.62%) than the reference compound BHT (60.81%) at 100 µg/mL.…”

Section: Determination Of Antioxidant Activitymentioning

confidence: 99%

Novel green synthesis of gold nanoparticles using Citrullus lanatus rind and investigation of proteasome inhibitory activity, antibacterial, and antioxidant potential

Patra¹,

Baek²

2015

IJN

View full text Add to dashboard Cite

Biological synthesis of nanoparticles using nontoxic, eco-friendly approaches is gaining importance owing to their fascinating biocompatibility and environmentally benign nature. This study describes the green synthesis approach for synthesis of gold nanoparticles (ANPs) using aqueous extract of the rind of watermelon as a fruit waste and evaluate its biopotential in terms of proteasome inhibitory activity, antibacterial, and antioxidant potential. The synthesized ANPs were characterized using UV–vis spectroscopy, scanning electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and thermogravimetric analysis. The surface plasmon resonance spectra of ANPs were obtained at 560 nm. Scanning electron microscopy image revealed that particles had a spherical shape and have a size distribution of 20–140 nm, followed by the elemental analysis by energy-dispersive X-ray spectroscopy. X-ray diffraction analysis confirmed the crystallite nature of the ANPs and Fourier-transform infrared spectroscopy revealed the involvement of bioactive compounds from watermelon rind in the synthesis, capping, and stabilization of ANPs. ANPs exhibited potential antibacterial activity against five different foodborne pathogenic bacteria with diameter of inhibition zones ranged between 9.23 and 11.58 mm. They also displayed strong synergistic antibacterial activity together with kanamycin (11.93–21.08 mm inhibition zones) and rifampicin (10.32–24.84 mm inhibition zones). ANPs displayed strong antioxidant activity in terms of DPPH radical scavenging (24.69%), nitric oxide scavenging (25.62%), ABTS scavenging (29.42%), and reducing power. Significantly high proteasome inhibitory potential of the ANPs (28.16%) could be highly useful for cancer treatment and targeted cancer drug delivery. Overall, results highlight a potential low-cost green method of synthesizing ANPs from food waste materials. Significant biopotentials of synthesized ANPs could make it a potential candidate for its application in the biomedical, pharmaceutical, cosmetics, and food sectors.

show abstract

Section: Determination Of Antioxidant Activitymentioning

confidence: 99%

Novel green synthesis of gold nanoparticles using Citrullus lanatus rind and investigation of proteasome inhibitory activity, antibacterial, and antioxidant potential

Patra¹,

Baek²

2015

IJN

View full text Add to dashboard Cite

show abstract

“…The pyrolysis procedure was performed in a vertical oven, containing a quartz reactor. 33 In the pyrolysis procedure, the following values of the governing parameters were set: granulometry ( ), and sample mass (10 g). This procedure was triplicated.…”

Section: Pyrolysismentioning

confidence: 99%

“…[31][32][33] Figure 1a shows the effect of pyrolysis temperature on the bio-oils yields from baru bark and acuri endocarp residues. The increment of the temperature from 673.15 to 973.15 K leads to variations in the yield of bio-oils from the bark and endocarp pyrolysis.…”

Section: Pyrolysismentioning

confidence: 99%

“…32 The qualitative analysis of bio-oils of the rice rusk and peach pit were identified in 106 and 223 compounds, respectively, using GC×GC-TOF/MS. 33 In the analysis of the products from pyrolysis of Brazilian sugar cane straw, it was identified 123 compounds by GC×GC-TOF/MS. 34 The objective of the present paper is to employ pyrolysis to obtain bio-oils from acuri and baru residues as well as to use the GC×GC-TOF/MS to investigate their compositions.…”

Section: Introductionmentioning

confidence: 99%

“…21 Bio-oil yield was 27.3% for rice husk, and 32.4% for peach pit in quartz reactor. 33 Another study reported bio-oil yield of 23.9% for sugar cane straw. 34 According to this, the yields obtained from the raw materials considered in the present study were similar to these others types of bio-oils.…”

mentioning

confidence: 99%

See 2 more Smart Citations

GC×GC-TOF/MS Analysis of Bio-Oils Obtained from Pyrolysis of Acuri and Baru Residues

Cardoso¹,

Machado²,

Maia³

et al. 2016

Journal of the Brazilian Chemical Society

View full text Add to dashboard Cite

Bark of acuri and endocarp of baru are residues generated during the processing of these fruits. One alternative to consider is the pyrolysis of these materials to generate bio-oils, opening the perspective for the production of environment-friendly, added value products. Samples of acuri and baru were subjected to laboratorial scale pyrolysis. At the optimized pyrolysis conditions, the bio-oils yields (m/m) were 30% for bark of acuri and 29% for endocarp of baru. Next, the obtained bio-oil was submitted to proximate analysis and GC×GC-TOF/MS (two-dimensional gas chromatography with time-of-flight mass spectrometric detection). The bio-oil generated from the bark of acuri proved to be of the highest complexity with 113 identified compounds, while the bio-oil generated from the endocarp of baru sample led to 71 identified compounds. A total of 29 compounds were confirmed using standards in the acuri bark bio-oil, while 23 compounds were confirmed for endocarp of baru bio-oil. There was a predominance of phenols and ketones for the bio-oil generated from acuri bark, and hydrocarbons and phenols for the bio-oil from baru endocarp.

show abstract

Role of Oxide Reducibility in the Deoxygenation of Phenol on Ruthenium Clusters Supported on the Anatase Titania (1 0 1) Surface

Chen

Pacchioni

2016

ChemCatChem

View full text Add to dashboard Cite

The deoxygenation of phenol on stoichiometric and reduced Ru10/TiO2 anatase (1 0 1) surfaces has been studied by using DFT with the Hubbard correction (DFT+U). If the molecule orients with the OH group towards the metal–oxide interface, the direct deoxygenation of phenol can occur. However, on the stoichiometric TiO2 surface, the reaction is thermodynamically unfavorable. Two kinds of reduced surfaces have been considered: one in which Ti3+ centers are generated by hydrogen addition, and a second one in which a water molecule is removed from a hydroxylated surface with the formation of O vacancies and Ti3+ centers. On the surface reduced by hydrogen addition (Ti3+ ions), the phenol molecular and dissociative adsorptions (C6H5+OH fragments) become isoenergetic; the barrier to dissociate the C−OH bond is 1.19 eV, which indicates a possible channel for the deoxygenation of phenol. On the surface reduced by O vacancies, the dissociative adsorption is 0.22 eV more stable than the molecular adsorption, which indicates a thermodynamically favorable process; however, the C−OH activation energy is higher, 1.50 eV. The results show that the C−O scission can be an important step towards the direct deoxygenation. The reduction of the surface facilitates the direct deoxygenation of phenol significantly.

show abstract

Qualitative analysis of bio oils of agricultural residues obtained through pyrolysis using comprehensive two dimensional gas chromatography with time-of-flight mass spectrometric detector

Cited by 76 publications

References 30 publications

Novel green synthesis of gold nanoparticles using Citrullus lanatus rind and investigation of proteasome inhibitory activity, antibacterial, and antioxidant potential

Novel green synthesis of gold nanoparticles using Citrullus lanatus rind and investigation of proteasome inhibitory activity, antibacterial, and antioxidant potential

GC×GC-TOF/MS Analysis of Bio-Oils Obtained from Pyrolysis of Acuri and Baru Residues

Role of Oxide Reducibility in the Deoxygenation of Phenol on Ruthenium Clusters Supported on the Anatase Titania (1 0 1) Surface

Contact Info

Product

Resources

About