Sampling and Sample Preparation Techniques for the Determination of the Volatile Components of Milk and Dairy Products

Costa, Rosaria; Dugo, Paola; Mondello, Luigi

doi:10.1016/b978-0-12-381373-2.00127-7

Cited by 5 publications

(4 citation statements)

References 96 publications

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“…18 The solvent extraction process requires lots of chemicals and develops a high level of secondary pollution. 19 High power consumption is a significant problem for the electrodialysis process, which makes it not very suitable for dye removal from wastewater. 20 Out of these processes, the adsorption technique has been found to be the most ideal for removing dyes from contaminated water.…”

Section: Introductionmentioning

confidence: 99%

“…The precipitation process generates a lot of sludges, and thus, the management of sludge is an issue . The solvent extraction process requires lots of chemicals and develops a high level of secondary pollution . High power consumption is a significant problem for the electrodialysis process, which makes it not very suitable for dye removal from wastewater .…”

Section: Introductionmentioning

confidence: 99%

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Development of a ZnOS+C Composite as a Potential Adsorbent for the Effective Removal of Fast Green Dye from Real Wastewater

et al. 2023

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Wastewater treatment is becoming increasingly important due to the potential shortage of pure drinking water in many parts of the world. Adsorption offers a potential technique for the uptake of contaminants and wastewater purification. In the last two decades, several efforts have been made to remove fast green (FG) dye from wastewater via different adsorbent materials. However, adsorption capacity shown by these adsorbents is low and time-consuming. Herein, we have synthesized for the first time a new powdered adsorbent ZnOS+C, modified zinc peroxide with sulfur and activated carbon to effectively remove FG dye from wastewater. Results of batch adsorption experiments have suggested that ZnOS+C has the maximum adsorption potential of 238.28 mg/g for FG dye within 120 min of adsorption equilibrium for a wide range of pH ranging from 2 to 10 pH. The adsorption process conforms to the Freundlich isotherm model, suggesting a multilayered adsorption process on the outer surface of ZnOS+C. The adsorption kinetics study indicates that the kinetics of the reaction are the intraparticle diffusion model. Briefly, this study shows proof of the application of ZnOS+C powder as a new eco-friendly adsorbent with extremely high efficiency and high surface area for removing FG dye.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of a ZnOS+C Composite as a Potential Adsorbent for the Effective Removal of Fast Green Dye from Real Wastewater

et al. 2023

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“…Thus, requiring a lengthy extraction time, such as 72 h by maceration [6], 75 min by steam distillation [7] and 12-24 h by Soxhlet [8]. Furthermore, the organic solvent is compulsory in those extraction methods, which can cause pollution, pose a health risk to the operator, and are costly [9,10]. Conventional extraction, like Soxhlet, is also not suitable for thermolabile materials, and ultrasound extraction uses high energy that could degrade phytochemical constituents by producing free radicals [11].…”

Section: Introductionmentioning

confidence: 99%

Phytochemicals, Antioxidant and Antimicrobial Activity of Centella Asiatica Extracted by Solvent-Free Microwave Extraction

Idris

Shukor²,

Nadzir³

2022

AEJ

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Solvent-free microwave extraction (SFME) is a green extraction method that requires no solvent and has a short extraction time. This study extracted Centella asiatica using SFME and analysed the extract for its phytoconstituents, phenolic content, antioxidant, and antimicrobial activity. Extraction of 20 g fresh C. asiatica by SFME was carried out for 15 min at 300 W, under vacuum and with stirring. Analysis by gas chromatography-mass spectroscopy (GC-MS) demonstrated that the extract contained phytonutrients such as flavonoids, polyphenol, tannins, and volatile oils. The extract from SFME also produced an IC50 of 0.06 mg/ml and 10.75±0.61 mg GAE/g dry weight of TPC. Using the disc diffusion method, the extract of C. asiatica also exhibited antimicrobial activity against Escherichia coli, Bacillus subtilis, Staphylococcus aureus, Enterobacter sp., Aspergillus niger, Aspergillus flavus, Penicillium chrysogenum and Aspergillus japonicus. This study showed that the C. asiatica extract from SFME retained the antioxidant and antimicrobial properties but in a shorter extraction time and without any solvent. As a result, using green extraction to extract this plant can help to preserve its nutritional content and valuable compounds, which is essential when formulating pharmaceutical, food, and cosmetic products.

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“…The precipitation process generates a lot of sludges, and thus, the management of sludge is an issue [18]. The solvent extraction process requires lots of chemicals and develops a high level of secondary pollution [19]. High power consumption is a significant problem for the electrodialysis process, which makes it not very suitable for dye removal from wastewater.…”

Section: Introductionmentioning

confidence: 99%

ZnOS+C adsorbent for the effective removal of Fast Green dye from synthetic and real wastewater

Sachin

Pramanik

Gupta

et al. 2022

Preprint

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Wastewater treatment is becoming increasingly important due to the potential shortage of pure drinking water in many parts of the world. Adsorption offers a potential technique for the uptake of contaminants and wastewater purification. In the last two decades, several efforts have been made to remove fast green (FG) dye from wastewater via different adsorbent materials. But adsorption capacity shown by these adsorbents is low and is time-consuming. Herein, we have synthesized for the first time a new powdered adsorbent ZnOS+C, modified Zinc peroxide with sulfur and activated carbon to effectively remove FG dye from wastewater. Results of batch adsorption experiments have suggested that ZnOS+C has the maximum adsorption capacity of 238.28 mg/g for FG dye within 120 minutes of adsorption equilibrium for a wide range of pH ranging from 2-10 pH. The adsorption process follows the Freundlich isotherm model, suggesting a multilayered adsorption process that occurs on the surface of ZnOS+C. The adsorption kinetics study indicates that the kinetics of the reaction is the intraparticle diffusion model. Briefly, this study shows the proof of application of ZnOS+C powder as a new eco-friendly adsorbent with extremely high efficiency and high surface area for removing FG dye.

show abstract

Sampling and Sample Preparation Techniques for the Determination of the Volatile Components of Milk and Dairy Products

Cited by 5 publications

References 96 publications

Development of a ZnOS+C Composite as a Potential Adsorbent for the Effective Removal of Fast Green Dye from Real Wastewater

Development of a ZnOS+C Composite as a Potential Adsorbent for the Effective Removal of Fast Green Dye from Real Wastewater

Phytochemicals, Antioxidant and Antimicrobial Activity of Centella Asiatica Extracted by Solvent-Free Microwave Extraction

ZnOS+C adsorbent for the effective removal of Fast Green dye from synthetic and real wastewater

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