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Chemical peels

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https://www.readbyqxmd.com/read/27916691/therapeutic-effects-of-gold-nanoparticles-synthesized-using-musa-paradisiaca-peel-extract-against-multiple-antibiotic-resistant-enterococcus-faecalis-biofilms-and-human-lung-cancer-cells-a549
#1
S Vijayakumar, B Vaseeharan, B Malaikozhundan, N Gopi, P Ekambaram, R Pachaiappan, P Velusamy, K Murugan, G Benelli, R Suresh Kumar, M Suriyanarayanamoorthy
Botanical-mediated synthesis of nanomaterials is currently emerging as a cheap and eco-friendly nanotechnology, since it does not involve the use of toxic chemicals. In the present study, we focused on the synthesis of gold nanoparticles using the aqueous peel extract of Musa paradisiaca (MPPE-AuNPs) by green approach following a facile and cheap fabrication process. The green synthesized MPPE-AuNPs were bio-physically characterized by UV-Vis spectroscopy, FTIR, XRD, TEM, Zeta potential and EDX. MPPE-AuNPs were crystalline in nature, spherical to triangular in shape, with particle size ranged within 50 nm...
December 1, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27878454/pectinase-production-by-aspergillus-giganteus-in-solid-state-fermentation-optimization-scale-up-biochemical-characterization-and-its-application-in-olive-oil-extraction
#2
Gastón E Ortiz, María C Ponce-Mora, Diego G Noseda, Gabriela Cazabat, Celina Saravalli, María C López, Guillermo P Gil, Martín Blasco, Edgardo O Albertó
The application of pectinases in industrial olive-oil processes is restricted by its production cost. Consequently, new fungal strains able to produce higher pectinase titers are required. The aim of this work was to study the capability of Aspergillus giganteus NRRL10 to produce pectinolytic enzymes by SSF and evaluate the application of these in olive-oil extraction. A. giganteus was selected among 12 strains on the basis of high pectinolytic activity and stability. A mixture composed by wheat bran, orange, and lemon peels was selected as the best substrate for enzyme production...
November 22, 2016: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27855922/chemical-characterization-and-protective-effect-of-the-bactris-setosa-mart-fruit-against-oxidative-nitrosative-stress
#3
Joana Schuelter Boeing, Daniela Ribeiro, Renan Campos Chisté, Jesuí Vergílio Visentainer, Vera Marisa Costa, Marisa Freitas, Eduarda Fernandes
Bactris setosa Mart. is a Brazilian tree from the palm family (Arecaceae), whose fruits are scientifically underexploited. Here, we report, for the first time, the identification and quantification of phenolic compounds and carotenoids in the pulp, seed, and peel extracts of B. setosa fruits and their in vitro biological activity. The anthocyanins cyanidin deoxyhexose hexoside and cyanidin hexoside and other phenolic compounds were detected mainly in the peel but also in the pulp extracts. All-trans-lutein was the unique carotenoid identified and quantified, and only in the peel extract...
April 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27853060/physical-chemical-and-proteomic-evidence-of-potato-suberin-degradation-by-the-plant-pathogenic-bacterium-streptomyces-scabiei
#4
Carole Beaulieu, Amadou Sidibé, Raoudha Jabloune, Anne-Marie Simao-Beaunoir, Sylvain Lerat, Ernest Monga, Mark A Bernards
Potato peels consist of a tissue called phellem, which is formed by suberized cell layers. The degradation of suberin, a lipidic and recalcitrant polymer, is an ecological process attributed to soil fungal populations; however, previous studies have suggested that Streptomyces scabiei, the causal agent of potato common scab, possesses the ability to degrade suberin. In the present study, S. scabiei was grown in medium containing suberin-enriched potato phellem as the sole carbon source and its secretome was analyzed periodically (10- to 60-d-old cultures) with a special focus on proteins potentially involved in cell wall degradation...
November 17, 2016: Microbes and Environments
https://www.readbyqxmd.com/read/27847550/a-split-face-evaluation-to-assess-the-efficacy-of-a-hydrolyzed-roe-cream-in-the-reduction-of-erythema-following-chemical-peel
#5
Vic A Narurkar
Objective:To evaluate a hydrolyzed roe cream in the reduction of facial erythema following a chemical peel treatment. Edema was also assessed. Design:The facial cream was applied to one side of the face of 30 healthy female subjects (average age = 54.9 years, range 33-65 years) immediately following 4 to 15 minutes peel treatment. The opposite side remained untreated. Visia-CR digital photographs were taken at baseline and 8 and 24 hours post facial peel. Objective dermal irritation assessments were done by a blinded investigator, graded on severity of facial erythema and edema on a 5-point scoring scale; 0=none, 1 =slight,2=mild, 3=moderate, 4=severe...
October 2016: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/27845763/the-chemistry-and-pharmacology-of-citrus-limonoids
#6
REVIEW
Roberta Gualdani, Maria Maddalena Cavalluzzi, Giovanni Lentini, Solomon Habtemariam
Citrus limonoids (CLs) are a group of highly oxygenated terpenoid secondary metabolites found mostly in the seeds, fruits and peel tissues of citrus fruits such as lemons, limes, oranges, pumellos, grapefruits, bergamots, and mandarins. Represented by limonin, the aglycones and glycosides of CLs have shown to display numerous pharmacological activities including anticancer, antimicrobial, antioxidant, antidiabetic and insecticidal among others. In this review, the chemistry and pharmacology of CLs are systematically scrutinised through the use of medicinal chemistry tools and structure-activity relationship approach...
November 13, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27842840/properties-of-cellulose-nanocrystals-from-oil-palm-trunk-isolated-by-total-chlorine-free-method
#7
Junidah Lamaming, Rokiah Hashim, Cheu Peng Leh, Othman Sulaiman
Cellulose nanocrystals were isolated from oil palm trunk by total chlorine free method. The samples were either water pre-hydrolyzed or non-water pre-hydrolyzed, subjected to soda pulping, acidified and ozone bleached. Cellulose and cellulose nanocrystal (CNC) physical, chemical, thermal properties, and crystallinity index were investigated by composition analysis, scanning electron microscopy, transmission electron microscopy, fourier transform infrared, thermogravimetric analysis and X-ray diffraction. Water pre-hydrolysis reduced lignin (<0...
January 20, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27814781/production-and-evaluation-of-mineral-and-nutrient-contents-chemical-composition-and-sensory-properties-of-ice-creams-fortified-with-laboratory-prepared-peach-fibre
#8
Filiz Yangılar
BACKGROUND: In the coming years, a nutraceutical food may provide both physical and mental benefits that are commonly attributed to the active components of the food. OBJECTIVE: In this study, we determined the nutrient and mineral contents, sensory properties, and physical and chemical characteristics of ice creams manufactured using peach fibre at different concentrations (1 and 2%). METHOD: A total of five experimental groups were formed: two types (from peach peel and pulp) of flour, two fibre concentrations (1 and 2%), and a control group without fibres...
2016: Food & Nutrition Research
https://www.readbyqxmd.com/read/27792841/reactions-of-trimethylaluminium-modelling-the-chemical-degradation-of-synthetic-lubricants
#9
Andrew Wheatley, Jonathan Slaughter, Andrew Peel
In investigating and seeking to mimic the reactivity of trimethylaluminium (TMA) with synthetic, ester-based luricating oils the reaction of methyl propionate 1 was explored with 1, 2 and 3 eq. the organoaluminium reagent. Spectroscopic analysis points to the formation of the adduct 1(TMA) accompanied only by the low level 1:1 production of Me2AlOCEtMe2 2 and Me2AlOMe 3 when an equimolar amount of TMA is applied. The deployment of excess TMA favours reaction to give 2 and 3 over 1(TMA) adduct formation and spectroscopy reveals that in hydrocarbon solution substitution product 2 traps unreacted TMA to yield 2(TMA)...
October 28, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27784909/chemical-and-sensory-characteristics-of-orange-based-vinegar
#10
Cristina Cejudo-Bastante, Remedios Castro-Mejías, Ramón Natera-Marín, Carmelo García-Barroso, Enrique Durán-Guerrero
Several experiments were conducted to developed orange based vinegar by surface culture. The addition of sugar (sucrose and concentrated must) and the presence/absence of peel in the raw material (squeezed juice, peeled orange, non-peeled orange plus squeezed juice) have been studied during the development of the final product. Polyphenolic and volatile characterization and sensory analysis have also been carried out. The polyphenolic and volatile content of the resulting wines and vinegars showed significant differences depending upon the raw material used...
August 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27775053/multifunctional-substrate-of-al-alloy-based-on-general-hierarchical-micro-nanostructures-superamphiphobicity-and-enhanced-corrosion-resistance
#11
Xuewu Li, Tian Shi, Cong Liu, Qiaoxin Zhang, Xingjiu Huang
Aluminum alloys are vulnerable to penetrating and peeling failures in seawater and preparing a barrier coating to isolate the substrate from corrosive medium is an effective anticorrosion method. Inspired by the lotus leaves effect, a wetting alloy surface with enhanced anticorrosion behavior has been prepared via etch, deposition, and low-surface-energy modification. Results indicate that excellent superamphiphobicity has been achieved after the modification of the constructed hierarchical labyrinth-like microstructures and dendritic nanostructures...
October 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27765982/application-of-response-surface-methodology-for-the-optimization-of-supercritical-fluid-extraction-of-essential-oil-from-pomegranate-punica-granatum-l-peel
#12
Katayoun Mahdavi Ara, Farhad Raofie
Essential oils and volatile components of pomegranate (Punica granatum L.) peel of the Malas variety from Meybod, Iran, were extracted using supercritical fluid extraction (SFE) and hydro-distillation methods. The experimental parameters of SFE that is pressure, temperature, extraction time, and modifier (methanol) volume were optimized using a central composite design after a (2(4-1)) fractional factorial design. Detailed chemical composition of the essential oils and volatile components obtained by hydro-distillation and optimum condition of the supercritical CO2 extraction were analyzed by GC-MS, and seventy-three and forty-six compounds were identified according to their retention indices and mass spectra, respectively...
July 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27760400/improving-simultaneously-the-quality-and-safety-of-cooked-and-peeled-shrimp-using-a-cocktail-of-bioprotective-lactic-acid-bacteria
#13
Taous Saraoui, Josiane Cornet, Emilie Guillouet, Marie France Pilet, Frédérique Chevalier, Jean-Jacques Joffraud, Françoise Leroi
Tropical shrimp is of considerable economic importance in the world but is highly perishable due to microbial and chemical degradation. Biopreservation is a food preservation technology based on the addition of "positive" bacteria able to kill or prevent the growth of undesirable microorganisms. Two strains of lactic acid bacteria (LAB) have previously been selected for a biopreservation strategy: Lactococcus piscium CNCM I-4031, for its ability to prevent the sensory deterioration of seafood and Carnobacterium divergens V41, which inhibits growth of Listeria monocytogenes...
October 3, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27743393/adjuvant-alternative-treatment-with-chemical-peeling-and-subsequent-iontophoresis-for-postinflammatory-hyperpigmentation-erosion-with-inflamed-red-papules-and-non-inflamed-atrophic-scars-in-acne-vulgaris
#14
Ichiro Kurokawa, Naoki Oiso, Akira Kawada
The standard management of acne vulgaris in Japan includes a combination of topical treatment with benzoyl peroxide (BPO) and BPO/clindamycin (CLDM), topical adapalene and systemic antimicrobials. However, the treatment of therapy-resistant complications such as postinflammatory hyperpigmentation (PIH), erosions with inflamed red papules and atrophic scars has not been established. We performed chemical peeling with glycolic acid and iontophoresis with ascorbyl 2-phosphate 6-palmitate and DL-α-tocopherol phosphate for the treatment of PIH, erosions with inflamed red papules and non-inflamed atrophic scars in 31 patients with acne vulgaris (mild to severe severity), and evaluated the efficacy and safety of these interventions...
October 15, 2016: Journal of Dermatology
https://www.readbyqxmd.com/read/27726997/assessment-of-co-composting-process-with-high-load-of-an-inorganic-industrial-waste
#15
Micaela A R Soares, Margarida J Quina, Marco S Reis, Rosa Quinta-Ferreira
This study aims to investigate the co-composting of an inorganic industrial waste (eggshell - ES) in very high levels (up to 60% w/w). Since composting is a process in which solid, liquid and gaseous phases interact in a very complex way, there is a need to shed light on statistical tools that can unravel the main relationships structuring the variability associated to this process. In this study, PCA and data visualisation were used with that purpose. The co-composting tests were designed with increasing quantities of ES (0, 10, 20, 30 and 60%ES w/w) mixed with industrial potato peel and rice husks...
October 7, 2016: Waste Management
https://www.readbyqxmd.com/read/27721398/synergistic-efficacy-of-salicylic-acid-with-a-penetration-enhancer-on-human-skin-monitored-by-oct-and-diffuse-reflectance-spectroscopy
#16
Qingliang Zhao, Cuixia Dai, Shanhui Fan, Jing Lv, Liming Nie
Salicylic acid (SA) has been frequently used as a facial chemical peeling agent (FCPA) in various cosmetics for facial rejuvenation and dermatological treatments in the clinic. However, there is a tradeoff between therapeutic effectiveness and possible adverse effects caused by this agent for cosmetologists. To optimize the cosmetic efficacy with minimal concentration, we proposed a chemical permeation enhancer (CPE) azone to synergistically work with SA on human skin in vivo. The optical properties of human skin after being treated with SA alone and SA combined with azone (SA@azone) were successively investigated by diffuse reflectance spectroscopy (DRS) and optical coherence tomography (OCT)...
October 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27719891/flavonoid-composition-of-orange-peel-and-its-association-with-antioxidant-and-anti-inflammatory-activities
#17
Xiu-Min Chen, Andrew R Tait, David D Kitts
Dried citrus peel derived from Citrus reticulata, also called "chenpi", possesses a complex mixture of flavonoids and has a history of traditional use to treat a variety of digestive disorders. We compared three sources of conventional chenpi from California (USA), Guangxi, Zhejiang, and two sources of "nchenpi", which contain greater nobiletin content, from Sichuan and Xinhui (China). Xinhui orange peel extract (OPE) had highest content of polymethoxylated flavones, along with greatest capacity to scavenge 2,2-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), 2,2-diphenyl-1-pcrylhydrazyl (DPPH), and 2,2'-azobis-2-methyl-propanimidamide, dihydrochloride (AAPH) radicals and nitric oxide (NO)...
March 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27697424/green-and-facile-method-for-the-recovery-of-spent-lithium-nickel-manganese-cobalt-oxide-nmc-based-lithium-ion-batteries
#18
Deepak Pant, Tenzin Dolker
The research reports a novel green method to use citrus fruits for the management of spent NMC based lithium ion batteries (LIBs). Citrus fruit juice (CJ) can provide an excellent chemical combination to remove the binder and support the leaching with efficiency in between 94% to 100%. CJ have many advantages in LIBs recycling as an economic and green method due to rich in many organic acids like citric and malic acid as complexing agents with ascorbic acid and citrus flavonoids, for the reduction of many heavy metals...
September 30, 2016: Waste Management
https://www.readbyqxmd.com/read/27689126/principal-component-analysis-pca-of-volatile-terpene-compounds-dataset-emitted-by-genetically-modified-sweet-orange-fruits-and-juices-in-which-a-d-limonene-synthase-was-either-up-or-down-regulated-vs-empty-vector-controls
#19
Ana Rodríguez, Josep E Peris, Ana Redondo, Takehiko Shimada, Leandro Peña
We have categorized the dataset from content and emission of terpene volatiles of peel and juice in both Navelina and Pineapple sweet orange cultivars in which D-limonene was either up- (S), down-regulated (AS) or non-altered (EV; control) ("Impact of D-limonene synthase up- or down-regulation on sweet orange fruit and juice odor perception"(A. Rodríguez, J.E. Peris, A. Redondo, T. Shimada, E. Costell, I. Carbonell, C. Rojas, L. Peña, (2016)) [1]). Data from volatile identification and quantification by HS-SPME and GC-MS were classified by Principal Component Analysis (PCA) individually or as chemical groups...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27686720/comparative-biogas-generation-from-fruit-peels-of-fluted-pumpkin-telfairia-occidentalis-and-its-optimization
#20
S O Dahunsi, S Oranusi, J B Owolabi, V E Efeovbokhan
This study evaluated the potentials of fluted pumpkin fruit peels for biogas generation using three different pre-treatment methods (A, B, C) and the optimization of its process parameters. The physic-chemical characteristics of the substrates revealed it to be rich in nutrients and mineral elements needed by microorganisms. Gas chromatography analysis revealed the gas composition to be within the range of 58.5±2.5% Methane and 27±3% Carbon dioxide for all the three digestions. The study revealed that combination of three pre-treatment methods enhanced enormous biogas yield from the digested substrates as against the use of two methods and no pre-treatment experiment...
December 2016: Bioresource Technology
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