GC-MS, FTIR and 1H ,13C NMR Structural Analysis and Identification of Phenolic Compounds in Olive Mill Wastewater Extracted from Oued Oussefrou Effluent (Beni Mellal-Morocco)

Zghari, B.; Doumenq, Pierre; Romane, A.; Boukir, Abdellatif

doi:10.26872/jmes.2017.8.12.475

Cited by 25 publications

(29 citation statements)

References 64 publications

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“…The bands detected between 3000-2850 cm −1 were assigned to (sp 3 ) C–H stretching vibration at 2919 cm −1 (ѵCH 3 , ѵ as CH 2 ), 2850 cm −1 (ѵ s CH 2 ) in methyl and methylene groups (Zghari et al., 2017). Asymmetric and symmetric bending vibration δCH 3 and δCH 2 scissoring in lignin (H 3 C–O-Ar) and in hemicelluloses (H 3 C-(C=O)–O-) are expected at 1465 cm −1 (δ as CH 3 , δ as CH 2 ) and 1375 cm −1 (δ s CH 3 ), respectively (Boukir et al., 1998a, Boukir et al., 1998b; Colom et al., 2003).…”

Section: Resultsmentioning

confidence: 99%

“…The absorption intensities at 1595 and 1505 cm −1 corresponded to C=C ar aromatic skeletal vibration over the lignin syringyl-guaiacyl matrix (Zghari et al., 2017). The strong band at 1595 cm −1 is correlated to the polar aromatic compound containing the phenolic group (Boukir et al., 1998a, Boukir et al., 1998b) with consistent features confirming the presence of lignin (Zghari et al., 2018).…”

Section: Resultsmentioning

confidence: 99%

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Structural characterization of Argania spinosa Moroccan wooden artifacts during natural degradation progress using infrared spectroscopy (ATR-FTIR) and X-Ray diffraction (XRD)

Boukir

Fellak

Doumenq

2019

Heliyon

143

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The present work is focused on spectroscopic study of four samples of Argan wooden artifact pertaining to the 17th, 18th, 20th and 21st centuries. The objective is to characterize their unknown structures by the study of their non degraded parts and to investigate changes occurred in their degraded parts due to the natural degradation process. Attenuated total reflectance Fourier transform infrared spectroscopy gauges the presence of many functional groups related to cellulose I and/or II (OH, C–O–C and –CH2), hemicelluloses (particularly C=O acetoxy ester band at 1732 cm−1), and lignin (OH phenolic, Car-O and C=Car) and provides qualitative information on the state of wood alteration by informing on the evolution of new former C=O bands. The degree of conversion to carbonyl group, especially quinone or p-quinone at 1650 cm−1, is correlated to lignin degradation, while the absence of the C=O acetoxy absorption is ascribable to occurred deterioration in hemicelluloses, and partial degradation of cellulose with enhancement of the C=O region between 1730-1630 cm−1. X-ray diffraction determines the presence of two forms of cellulose; amorphous cellulose at 18.5° 2θ and predominant crystalline cellulose Iβ at 2θ = 22.6° which characterized by an intense peak. The decrease of crystallinity index values confirms the deterioration level and obvious changes in crystallinity level. However, the microcrystalline structure appears unaltered because no significant changes were observed for calculated cristallite seize. The obtained results depend on the prolonged time of ageing, natural deterioration phenomena, and wood part (internal or external) that is exposed to degradation. The combination of these two methods is useful for an accurate estimation of the degradation level of argan wood.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Structural characterization of Argania spinosa Moroccan wooden artifacts during natural degradation progress using infrared spectroscopy (ATR-FTIR) and X-Ray diffraction (XRD)

Boukir

Fellak

Doumenq

2019

Heliyon

143

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“…The peaks at between 1030 and 1160 cm -1 mean revealing the heterogeneous chemical nature of these biomasses [12]. The results showed that the presence of the O-H hydroxyls groups (3700 cm-1 and 3100 cm -1 ), aromatic CHar (3100-3000 cm -1 ), aliphatic CH (2942 and 2887 cm -1 ), as well as C=O of the carboxylic acid at 1717 cm -1 associated by hydrogen bond and conjugate C=O of the flavonoids at 1650 cm -1 [13]. The experimental results for mixture combinations with OMW and cheese whey are given in Table 4 and Table 5, respectively.…”

Section: Resultsmentioning

confidence: 96%

Preparations and Applications of Bio - Based Additives for Building Chemicals Production

Memioğlu¹,

Elibol²

2020

jscmt

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The objective of this report is to assess the effects of using olive oil mill wastewater (OMW) and cheese whey on the production of concrete chemical admixture. Wastewater samples were taken locally from two factories in Izmir. Concrete chemical admixture combinations (waste water, polycarboxylate, molasses, defoamer, biocide and water) at different ratios were generated with statistical experimental design methods and the effects of some parameters, such as level of chloride (%), solid content (%), pH, density (gr/cm 3 ), were investigated. Furthermore, concrete tests were performed to identify slump (cm) and strength (kgf/cm 2 ) changes. The results showed that the addition of OMW and cheese whey up to 9.42 % (wt) and 12.51 % (wt), respectively can be potential admixture for concrete preparation, without loss of performance.

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“…According to [12], cellulose in crystallized form is depicted in infrared spectrum by a small band at 1348 cm −1 , thus proving the XRD results mentioned beforehand (Figure 1). The band appeared at 1120 cm −1 , indicating the presence of lignin and carbohydrates [31,32]. Band between 1172 and 950 cm −1 was detected, which depicts the fingerprints region of cellulose and hemicelluloses.…”

Section: Infrared Spectroscopy Analysismentioning

confidence: 92%

Advanced Characterization of Organic Matter Decaying during Composting of Industrial Waste Using Spectral Methods

et al. 2021

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To date, compost maturation monitoring is carried out by physical-chemical and microbiological analysis, which could be considered an overweening consumption of time and products. Nowadays, spectroscopy is chosen as a simple tool for monitoring compost maturity. In the present investigation, spectroscopy analysis was performed in the interest of corroborating the compost maturity. This goal was achieved by using the X-ray diffraction, infrared spectroscopy, and scanning electron microscopy. X-ray diffraction analysis showed the presence of the cellulose fraction in compost samples. At the same time, the intensity of pics decreased depending on composting time, thus proving that there was organic matter degradation. Infrared and scanning electron microscopy analysis allow for confirming these results. The correlation between spectroscopies analysis and physical-chemical properties was employed by partial least squares-regression (PLS-R) model. PLS-R model was applied to build a model to predict the compost quality depending on the composting time, the results obtained show that all the parameters analysis are well predicted. The current study proposed that final compost was more stabilized compared with the initial feedstock mixture. Ultimately, spectroscopy techniques used allowed us to confirm the physical-chemical results obtained, and both of them depict maturity and stability of the final compost, thus proving that spectral techniques are more reliable, fast, and promising than physical-chemical analyses.

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GC-MS, FTIR and 1H ,13C NMR Structural Analysis and Identification of Phenolic Compounds in Olive Mill Wastewater Extracted from Oued Oussefrou Effluent (Beni Mellal-Morocco)

Cited by 25 publications

References 64 publications

Structural characterization of Argania spinosa Moroccan wooden artifacts during natural degradation progress using infrared spectroscopy (ATR-FTIR) and X-Ray diffraction (XRD)

Structural characterization of Argania spinosa Moroccan wooden artifacts during natural degradation progress using infrared spectroscopy (ATR-FTIR) and X-Ray diffraction (XRD)

Preparations and Applications of Bio - Based Additives for Building Chemicals Production

Advanced Characterization of Organic Matter Decaying during Composting of Industrial Waste Using Spectral Methods

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