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Total 514633 results found since Jan 2013.
Utilization of kinnow peel extract with different wastewaters for cultivation of microalgae for potential biodiesel production
This study suggests that kinnow peel extract with different wastewaters produced high biomass and it is economically viable medium for biodiesel feedstock production.Graphical abstract
Source: Journal of Environmental Chemical Engineering - May 21, 2019 Category: Chemistry Source Type: research
A novel, green cloud point extraction and separation of phenols and flavonoids from pomegranate peel: An optimization study using RCCD
Publication date: October 2019Source: Journal of Environmental Chemical Engineering, Volume 7, Issue 5Author(s): Pavankumar R. More, Shalini S. AryaAbstractCloud point extraction (CPE) is one of the novel; environment-friendly; energy; time and cost-effective extraction technique. Therefore, in the present work preconcentration and separation of bioactive compounds from pomegranate peel, a major waste of the pomegranate processing industry was carried out using CPE. CPE works on the principle of entrapping the hydrophobic bioactive compound in the micelle. Surfactant concentration (5–11%), pH (4–8), temperature (30–6...
Source: Journal of Environmental Chemical Engineering - August 3, 2019 Category: Chemistry Source Type: research
Chemical modification of four lignocellulosic materials to improve the Pb2+ and Ni2+ ions adsorption in aqueous solutions
This study aimed to increase the adsorption capacity of Pb2+ and Ni2+ ions for different lignocellulosic materials (banana peel (BP), eucalyptus bark (EB), maize cob (MC) and maize leaf (ML) by alkali and acidic hydrolysis chemical treatments. The fibers chemical modifications were evaluated using the FTIR and the Boehm method. The Pb2+ and Ni2+ ions concentrations in the solutions were quantified by the Energy-Dispersive X-ray Fluorescence Spectrometer. The results demonstrated that the alkali-treatment was the most efficient in increasing the adsorption capacity of Pb2+ and Ni2+ ions for all the fibers. The kinetics and ...
Source: Journal of Environmental Chemical Engineering - August 15, 2019 Category: Chemistry Source Type: research
Cellulase production to obtain biogas from passion fruit (Passiflora edulis) peel waste hydrolysate
Publication date: Available online 4 November 2019Source: Journal of Environmental Chemical EngineeringAuthor(s): A.F.V. Silva, L.A. Santos, R.B. Valença, T.S. Porto, M.A.M. Sobrinho, G.J.C. Gomes, J.F.T. Jucá, L.A.F.M.S. SantosAbstractEnzyme usage for valorization of organic and agroindustrial wastes is a biotechnology field that had been increasing due to economic and environmental benefits that add to productive cycles. Enzymatic hydrolysis is one of the possible pre-treatments used with the aim of facilitating lignocellulosic waste biodigestion. This work evaluated cellulase production by Aspergillus japonicus URM562...
Source: Journal of Environmental Chemical Engineering - November 6, 2019 Category: Chemistry Source Type: research
Chemical Peel (Deep, Medium, Light).
This article describes the most recent knowledge about chemical peeling, and exposes previously accepted yet incorrect dogmas. Chemical peeling, when practiced with knowledge and good technique, can yield excellent results in skin rejuvenation.
PMID: 31779941 [PubMed - in process]
Source: The Surgical Clinics of North America - December 1, 2019 Category: Surgery Authors: Starkman SJ, Mangat DS Tags: Facial Plast Surg Clin North Am Source Type: research
Recognizing and Managing Complications in Laser Resurfacing, Chemical Peels, and Dermabrasion
Skin resurfacing techniques allow improvement of skin texture and color. This includes the effacement of wrinkles, signs of photoaging, and the softening of scars. Laser resurfacing, chemical peels, and dermabrasion are associated with overlapping risks of complications. The most common of these include infection, hypopigmentation, hyperpigmentation, and scarring. Patient evaluation helps provide treatment that gives the maximal benefit with a minimization of risks. This includes understanding the extent of each patient ’s issues (Glogau scale) and Fitzpatrick type. A thorough knowledge of potential risks will reduce the...
Source: Facial Plastic Surgery Clinics of North America - September 8, 2020 Category: Cosmetic Surgery Authors: Mark M. Hamilton, Richard Kao Source Type: research
Use of Paper Spray Mass Spectrometry for Determining the Chemical Profile of Green Cavendish Banana (Musa AAA) Peel and Pulp Flours and Evaluation of Its Functional Potential
Green Cavendish banana peel and pulp flours were obtained by three drying methods: oven dryer at 70 °C; air fryer at 180 °C and domestic oven at 180 °C, being the latter two new possibilities. Bioactive constituents using paper spray ionization mass spectrometry (PS-MS), phenolic identification and quantification by ultra-performance liquid chromatography with UV-Visible detection (UPLC/UV-Vis) and antioxidant capacity were evaluated. Phenolic acids showed distinct thermal stability between the treatments. Gallic acid was the predominant compound, ranging from (29.56 to 1211.74 mg 100 g-1) and had higher concentration t...
Source: Journal of the Brazilian Chemical Society - April 30, 2021 Category: Chemistry Source Type: research
647 Combination treatment of daylight photodynamic therapy (DL-PDT) and alpha-hydroxy acid(AHA) 30% chemical peels as a novel effective treatment for severe papulopustular rosacea
Introduction: Traditional treatment for papulopustular rosacea (PPR) has been challenged due to systemic side effects or frequent relapses, which necessitates new treatments. Preliminary evidence showed that conventional photodynamic therapy (c-PDT) is an efficient therapy in treating PPR, but the pain and severe hyperpigmentation are in urgent need of improvement, while the use of daylight photodynamic therapy (DL-PDT) and AHA 30% chemical peels of rosacea has been largely absent from the literature.
Source: Journal of Investigative Dermatology - April 17, 2023 Category: Dermatology Authors: J. Li, J. Wei, F. Hao Source Type: research
Cytotoxic and anti-inflammatory effects of onion peel extract on lipopolysaccharide stimulated human colon carcinoma cells.
Abstract
The present study investigated the cytotoxic activity of ethanol extract of onion peel (OPE) in HT-29 human colon carcinoma cells. High-performance liquid chromatography (HPLC) analysis was performed to determine the amounts of phenolic acids and flavonoids in OPE. In addition, the influence of OPE on antioxidant- and inflammation-associated gene expression was also determined in a model of lipopolysaccharide (LPS)-stimulated HT-29 cells. HPLC analysis showed that OPE contained well-known antioxidant compounds, including p-coumaric acid, vanillic acid, epicatechin, and morin. After incubation with OPE, HT...
Source: Food and Chemical Toxicology - August 30, 2013 Category: Food Science Authors: Kim J, Kim JS, Park E Tags: Food Chem Toxicol Source Type: research
Adsorption of remazol brilliant blue on an orange peel adsorbent
A novel orange peel adsorbent developed from an agricultural waste material was characterised and utilised for the removal of Remazol Brilliant Blue from an artificial textile-dye effluent. The adsorption thermodynamics of this dye-adsorbent pair was studied in a series of equilibrium experiments. The time to reach equilibrium was 15 h for the concentration range of 30 mg L-1 to 250 mg L-1. The adsorption capacity decreased with increasing temperature, from 9.7 mg L-1 at 20 ºC to 5.0 mg L-1 at 60 ºC. Both the Langmuir and Freundlich isotherm models fitted the adsorption data quite reasonably. The thermodynamic analysis o...
Source: Brazilian Journal of Chemical Engineering - September 9, 2013 Category: Chemistry Source Type: research
Removal of Pb(II) from aqueous solution by using biochars derived from sugar cane bagasse and orange peel
In this study sugar cane biochar (SC-BC) and orange peel biochar (OP-BC) were used to remove Pb(II) ions from aqueous solutions. To achieve this goal, biochars were produced by the pyrolysis of biomasses at temperature less than 500°C by using a small-scale biochar producing plant. Furthermore, batch adsorption studies have been performed, and the effects of several factors, i.e., pH, contact time, initial Pb(II) ions concentration and temperature were investigated on Pb(II) ions sorption mechanism and optimizing the removal efficiency of Pb. Boehm titration method and Fourier transform infrared (FTIR) spectroscopy were e...
Source: Journal of the Taiwan Institute of Chemical Engineers - February 17, 2016 Category: Chemistry Source Type: research
Tretinoin peel: a critical view
This article reviews studies evaluating the use of topical tretinoin as agent for superficial chemical peel. Most of them have shown benefits in the treatment of melasma and skin aging. A better quality methodology in the study design, considering indication and intervention is indispensable regarding concentration, vehicle and treatment regimen (interval and number of applications). Additionally, more controlled and randomized studies comparing the treatment with tretinoin cream versus its use as a peeling agent, mainly for melasma and photoaging, are necessary.
Source: Anais Brasileiros de Dermatologia - July 24, 2017 Category: Dermatology Source Type: research
Jessner’s Solution with Trichloroacetic Acid Chemical Peel: Optimizing Outcomes and Safety
Summary:
Trichloroacetic acid (TCA) is a versatile agent, efficacious in treating a spectrum of facial rhytids and dyschrommias at varying concentrations. TCA is commonly used in a 30%–35% concentration to achieve a medium-depth peel into the upper reticular dermis. The addition of Jessner’s solution before the TCA peel application leads to partial removal of epidermis, allowing for deeper penetration of the TCA. This combination is beneficial, as lower concentrations of TCA can be used for the same depth of peel, minimizing complications such as scarring.
Source: Plastic and Reconstructive Surgery – Global Open - May 1, 2019 Category: Cosmetic Surgery Tags: Special Topic Source Type: research
Thermodynamic parameters of cadmium adsorption onto orange peel calculated from various methods: A comparison study
In this study, the thermodynamic parameters were calculated from the KC constants derived from the adsorption isotherm constants (i.e., Langmuir, Freundlich, and Henry) and partition coefficient, with and without dimensionality consideration. Results showed that the optimal selection of KC is strongly dependent on: the adsorption characteristics (i.e., Henry, Freundlich, and Langmuir) where equilibrium data are actually located; and the correlation coefficient of the van’t Hoff equation. Both the Langmuir and Freundlich constants (dimensionless) are appropriate to calculate the thermodynamic parameters. The Langmuir cons...
Source: Journal of Environmental Chemical Engineering - May 26, 2016 Category: Chemistry Source Type: research
Enhancement of Adsorption Characteristics of Cr(III) and Ni(II) by Surface Modification of Jackfruit Peel Biosorbent
Publication date: Available online 29 August 2018Source: Journal of Environmental Chemical EngineeringAuthor(s): S.H. Ranasinghe, A.N. Navaratne, N. PriyanthaAbstractBiosorption has become an attractive alternative to chemical treatment methods, which use large amounts of toxic chemicals. Jackfruit peel (JFP) is an effective low-cost biosorbent for the removal of Cr(III) and Ni(II) from aqueous solution with maximum monolayer adsorption capacity (qmax) of 13.50 mg g-1 and 12.03 mg g-1 for the two metal ions, respectively, which is due to the high surface area and surface negativity of the lignocellulosic structure ...
Source: Journal of Environmental Chemical Engineering - August 30, 2018 Category: Chemistry Source Type: research
