Read by QxMD icon Read

Chemical peels

Shanshan Zhang, Haijuan Hu, Lufeng Wang, Fengxia Liu, Siyi Pan
Pectin oligosaccharide (POS) fractions were obtained by controlled chemical degradation of citrus peel pectin. By adjusting trifluoroacetic acid (TFA) concentration, three oligosaccharides were obtained, of molecular weight (Mw) range 3000-4000 Da, 2000-3000 Da and lower than 2000 Da. Varying hydrogen peroxide (H2O2) concentration and reaction time produced oligosaccharides of 3000-4000 Da and 2000-3000 Da. The relative proportions of acidic monosaccharide increased from 68.58% to 89.93% (TFA) and from 63...
April 1, 2018: Food Chemistry
Mathusalini Sadasivam, Chandraprakash Kumarasamy, Arasakumar Thangaraj, Mani Govindan, Gayathri Kasirajan, Viswanathan Vijayan, Velmurugan Devadasan, Lin Chia-Her, Gogul Ramnath Madhusudhanan, Thirugnanasampandan Ramaraj, Mohan Palathurai Subramaniam
Chemical investigation of the fruit peel of dietary plant Citrus hystrix offered two new flavones 5,6,4'-trihydroxypyranoflavone I and 5,4'-dimethyl-6-prenylpyranoflavone XIII besides 11 known compounds. The structures of all compounds were elucidated with the aid of suitable analytical methods like 1D, 2D-NMR, mass and single crystal X-ray analysis. An X-ray crystal study of compound II was done for the first time and the compounds I-VI, XI and XII are hitherto not reported from this plant. Biological studies revealed that compound I found to have a good antidiabetic and antiacetylcholinesterase activities meanwhile compounds II, III and V showed a significant free radical scavenging ability as well as antioxidant capacity...
November 9, 2017: Natural Product Research
Ying Yang, Xiaohe Wang, Chengying Zhao, Guifang Tian, Hua Zhang, Hang Xiao, Lili He, Jinkai Zheng
Citrus peels, by-products in large quantity, are rich in various functional and beneficial components which have wide applications. Chemical analysis of these components in citrus peels is an important step to determine the usefulness of the by-products for further applications. In this study, we explored Raman microscopy for rapid, nondestructive, and in situ chemical mapping of multiple main functional components from citrus peels. The relative amount and distribution in different locations (flavedo, albedo, and longitudinal section) of 3 main functional components (essential oils, carotenoids, and flavonoids) in citrus peels were systematically investigated...
November 8, 2017: Journal of Food Science
Tanweer Ahmad, Mohammed Danish
This review article explores utilization of banana waste (fruit peels, pseudo-stem, trunks, and leaves) as precursor materials to produce an adsorbent, and its application against environmental pollutants such as heavy metals, dyes, organic pollutants, pesticides, and various other gaseous pollutants. In recent past, quite a good number of research articles have been published on the utilization of low-cost adsorbents derived from biomass wastes. The literature survey on banana waste derived adsorbents shown that due to the abundance of banana waste worldwide, it also considered as low-cost adsorbents with promising future application against various environmental pollutants...
October 31, 2017: Journal of Environmental Management
E R Black
OBJECTIVE: Trichloroacetic acid (TCAA), or trichloroethanoic acid, is a chemical analogue of acetic acid where three methyl group hydrogen atoms are replaced by chlorine. TCAAs are also abbreviated and referred to as TCAs, causing confusion with the psychiatric antidepressant drug class, especially among patients. TCAAs exist in dermatological treatments such as chemical peels or wart chemoablation medication. TCAA ingestion or overdose can cause gastric irritation symptoms including vomiting, diarrhea, or lassitude...
2017: Case Reports in Psychiatry
Asgar Ali, Wei Keat Yeoh, Charles Forney, Mohammed Wasim Siddiqui
Minimally processed fresh produce is one of the fastest growing segments of the food industry due to consumer demand for fresh, healthy, and convenient foods. However, mechanical operations of cutting and peeling induce the liberation of cellular contents at the site of wounding that can promote the growth of pathogenic and spoilage microorganisms. In addition, rates of tissue senescence can be enhanced resulting in reduced storage life of fresh-cut fruits and vegetables. Chlorine has been widely adopted in the disinfection and washing procedures of fresh-cut produce due to its low cost and efficacy against a broad spectrum of microorganisms...
October 26, 2017: Critical Reviews in Food Science and Nutrition
Jason M Weissler, Martin J Carney, Jossie A Carreras Tartak, Richard H Bensimon, Ivona Percec
Despite the growth of technically more sophisticated skin resurfacing modalities, such as those based on light, radiofrequency, and ultrasound, chemical peel procedures have risen 5 to 25 percent over the past year alone. Chemexfoliation carries historical significance and has markedly evolved since its inception in ancient times. As a result of plastic surgery and dermatologic advancements, modern-day chemexfoliation offers plastic surgeons additional safe and effective options for patients with rhytides, dyschromias, and other signs of light- and environment-induced skin damage...
November 2017: Plastic and Reconstructive Surgery
Harold J Brody
No abstract text is available yet for this article.
November 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
Alicia A O'Connor, Patricia M Lowe, Stephen Shumack, Adrian C Lim
Chemical peels belong to a group of cutaneous resurfacing procedures that are used in the treatment of photoageing, inflammatory dermatoses, epidermal proliferations, pigmentary disorders and scarring. This review describes best current practice, highlights recent advances in chemical peel technology and discusses the recommended uses for different peel types. It also presents the results of a survey of the chemical peeling practices of 30 Australian dermatologists.
October 24, 2017: Australasian Journal of Dermatology
Fatma Saleh, Noha H Moftah, Eman Abdel-Azim, Marwa G Gharieb
BACKGROUNDS: Treatment of mixed melasma remains challenging. Promising results have been achieved with low-fluence 1064-nm Q-switched Nd-YAG laser; however, multiple sessions are necessary with occurrence of complications especially in dark skin types. So, combination methods may be recommended. AIMS: To compare efficacy of Q-switched Nd-YAG laser alone or with modified Jessner's peel in mixed melasma in dark skin. PATIENTS/METHODS: Nineteen patients with mixed melasma received 6 sessions of laser on left side of face and alternating laser and modified Jessner on right side...
October 22, 2017: Journal of Cosmetic Dermatology
Anil Kumar Maurya, Shilpa Mohanty, Anirban Pal, Chandan Singh Chanotiya, Dnyaneshawar Umrao Bawankule
ETHNOPHARMACOLOGICAL RELEVANCE: Citrus fruit peels are traditionally used in folk medicine for the treatment of skin disorders but it lacks proper pharmacological intervention. Citrus limetta Risso (Rutaceae) is an important commercial fruit crops used by juice processing industries in all continents. Ethnopharmacological validation of an essential oil isolated from its peels may play a key role in converting the fruit waste materials into therapeutic value added products. AIM OF THE STUDY: To evaluate the chemical and pharmacological (in-vitro and in-vivo) profile of essential oil isolated from Citrus limetta peels (Clp-EO) against skin inflammation for its ethnopharmacological validation...
October 19, 2017: Journal of Ethnopharmacology
Susruthi Rajanala, Neelam A Vashi
No abstract text is available yet for this article.
October 1, 2017: JAMA Dermatology
Sabine Zenker
<p>INTRODUCTION: Looking at alternatives to standard injectables and devices for rejuvenation, typical indications for facial rejuvenation are poor skin quality, pigmentary changes, and the loss of shape. Looking for effective treatments for those indications in the aesthetic field, one can notice a kind of "retro"-trend: easy-to-perform, non- or minimally-invasive, low-investment-requiring procedures are regaining a lot of popularity. And, over time, those treatments are becoming well defined and far more specific...
June 1, 2017: Journal of Drugs in Dermatology: JDD
Orlando Campolo, Asma Cherif, Michele Ricupero, Gaetano Siscaro, Kaouthar Grissa-Lebdi, Agatino Russo, Lorena M Cucci, Patrizia Di Pietro, Cristina Satriano, Nicolas Desneux, Antonio Biondi, Lucia Zappalà, Vincenzo Palmeri
The repeated use of conventional synthetic pesticides in crop protection leads to resistance development by pests along with a negative impact on the environment, particularly non-target arthropods. Plant-derived active compounds, such as essential oils (EOs), play a key role in sustainably controlling pests. The lethal and sublethal activity of citrus peel EOs as emulsions and included in polyethylene glycol (PEG) nanoparticles (EO-NPs) was determined against the invasive tomato pest Tuta absoluta. Their effects on the plants were also assessed...
October 12, 2017: Scientific Reports
Mohamed E I Badawy, Nehad E M Taktak, Ahmed F El-Aswad
Three essential oils (EOs) were isolated from the peel of citrus fruits Citrus reticulata L., Citrus reticulata chinase Blanco and Citrus sinensis (L.) Osbeck (Family: Rutaceae) and evaluated against Culex pipiens L.1758 (Family: Culicidae). Chemical composition indicated that the EOs were rich in essential phytochemicals including hydrocarbons, monoterpenes and sesquiterpenes. These constituents revealed some variability among the oils displaying interesting chemotypes limonene (35-51%), 1R-α-pinene (1.04-2...
October 10, 2017: Natural Product Research
M Meera, A Ruckmani, R Saravanan, R Lakshmipathy Prabhu
The present study was conducted to identify the chemical constituents and evaluate the anti-inflammatory activity of crude ethanolic extracts of spine, skin and rind of jack fruit (Artocarpus heterophyllus) peel. Polyphenol and flavonoid contents were assessed using Folin's Ciocalteu reagent and aluminium chloride methods which revealed 316, 355 and 382 mg tannic acid equivalent/g of polyphenol and 96.7, 131.6 and 164.6 mg quercetin equivalent/g of flavonoid in spine, skin and rind, respectively. Anti-inflammatory activity of all three extracts was comparable to diclofenac in vitro and in vivo studies...
October 9, 2017: Natural Product Research
Meriem Jouini, Amal Abdelhamid, Mohamed Aymen Chaouch, Didier le Cerf, Abderrahman Bouraoui, Hatem Majdoub, Hichem Ben Jannet
The aim of this study is to isolate pectin from peel (WNPE) and pulp (WNPU) of Opuntia microdasys var. rufida's (OMR) cladodes and to characterize these polysaccharides by size exclusion (SEC/MALS/VD/DRI), gas chromatography coupled to mass spectrometer (GC-MS), nuclear magnetic resonance ((1)H NMR), and Fourier transform infrared spectroscopy (FTIR) analysis. The polysaccharides were extracted in neutral aqueous media followed by ethanol precipitation and dialysis. Both WNPE and WNPU are mainly composed of uronic acids and some neutral sugars such as arabinose, galactose, rhamnose and mannose...
October 4, 2017: International Journal of Biological Macromolecules
Fernanda Aline de Moura, Fernanda Teixeira Macagnan, Lucciélli Rodrigues Dos Santos, Marilia Bizzani, Carmen Lúcia de Oliveira Petkowicz, Leila Picolli da Silva
The composition and fine structure of pectins found in plant cell walls are heterogeneous, with striking differences, depending on their source, and this eventually determines their functional and technological properties. The aim of this study was to extract and determine the chemical composition and physicochemical properties of pectins from different sources: passion fruit peel, orange pomace, and soy hull. Pectin extraction was performed with heated hydrochloric acid solution, followed by precipitation with 96% ethanol...
September 2017: Journal of Food Science and Technology
Sanaz Ghasemi, Seid Mahdi Jafari, Elham Assadpour, Morteza Khomeiri
Orange peel oil is one of the most common flavorings used in the food industry which is volatile under environmental conditions. Encapsulation is the best way to protect it and control its release. One of the nanoencapsulation systems for food bioactive ingredients is complexation method, which entraps the core materials in a complex of two different biopolymers. In this study, orange peel oil was nanoencapsulated by pectin-whey protein nanocomplexes. After determining the optimum nanocomplex suspensions containing orange peel oil based on the stability, viscosity, and color, they were formulated in three different pH values (3, 6 and 9) and converted into powdered forms by freeze drying...
December 1, 2017: Carbohydrate Polymers
Neelima Mahato, Kavita Sharma, Rakoti Koteswararao, Mukty Sinha, EkRaj Baral, Moo Hwan Cho
Citrus EOs is an economic, eco-friendly and natural alternatives to chemical preservatives and other synthetic antioxidants, such as sodium nitrites, nitrates or benzoates, commonly utilized in food preservation. Citrus based EOs is obtained mainly from the peels of citrus fruits which are largely discarded as wastes and cause environmental problems. The extraction of citrus oils from the waste peels not only saves environment but can be used in various applications including food preservation. The present article presents elaborated viewpoints on the nature and chemical composition of different EOs present in main citrus varieties widely grown across the globe; extraction, characterization and authentication techniques/methods of the citrus EOs; and reviews the recent advances in the application of citrus EOs for the preservation of fruits, vegetables, meat, fish and processed food stuffs...
September 28, 2017: Critical Reviews in Food Science and Nutrition
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"