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Chemical peeling

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https://www.readbyqxmd.com/read/29222908/how-effective-are-common-household-preparations-on-removing-pesticide-residues-from-fruit-and-vegetables-a-review
#1
REVIEW
Stephen W C Chung
Nowadays, the use of pesticides is inevitable for pest-control in crops, especially the fruit and vegetables. After the harvest from raw agricultural commodities, the amount of pesticide residues in food is mainly influenced by the storage, handling and processing that follow. If good agricultural and good manufacturing practices are enforced effectively, the amount of pesticide residues would be brought below the corresponding maximum residue level. Thus, the consumption of raw and/or prepared fruit and vegetables would be safe...
December 9, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29222629/postinflammatory-hyperpigmentation-epidemiology-clinical-presentation-pathogenesis-and-treatment
#2
REVIEW
Bridget P Kaufman, Taulun Aman, Andrew F Alexis
Postinflammatory hyperpigmentation (PIH) is a reactive hypermelanosis that develops following cutaneous inflammation. Common causes of PIH include intrinsic skin conditions (e.g., acne and eczema) as well as external insults to the skin, such as burn injuries and dermatologic procedures. PIH more commonly occurs in individuals with darker skin, for whom it is often a source of significant psychological distress. Several therapeutic modalities are available for the treatment of PIH, including topical agents, chemical peels, and energy-based devices...
December 8, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/29218941/-study-on-diarylheptanoids-from-green-peel-of-juglans-sigillata
#3
Dong-Mei Li, You-Lun Peng, Guang-Ming Liu
The chemical constituents from green peel of Juglans sigillata were isolated by column chomatographies over silica gel, Sephadex LH-20, and MCI. Four diarylheptanoids were isolated and their structures were characterized as dihydropterocarine(1), 3',4″-epoxy-1-(4'-hydroxy-phenyl)-7-(3″-methoxyl-phenyl)-heptan-3α-ol(2), pterocarine(3), and 1-(4'-hydroxy-phenyl)-7-(3″-methoxy-4″-hydroxyphenyl)-heptan-3α-ol(4). Compound 1 is a new compound, named as dihydropterocarine. Compounds 2-4 were isolated from the plant of J...
September 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29199463/a-new-c-glycosyl-flavone-and-a-new-neolignan-glycoside-from-passiflora-edulis-sims-peel
#4
Yue Hu, Lin Jiao, Min-Hong Jiang, Sheng Yin, Pan Dong, Zhi-Min Zhao, De-Po Yang, Pei-Tsai Ho, Dong-Mei Wang
A new C-glycosyl flavone, Chrysin-8-C-(2″-O-β-6-deoxy-glucopyranosyl)-β-D-glucopyranoside (1), a new neolignan glycoside, citrusin G (2), as well as 15 known compounds (3-17) were isolated from the peel of Passiflora edulis Sims. The structure determinations were primarily based on comprehensive spectroscopic analyses, and the absolute configuration of 2 were unequivocally determined by the CD experiment and chemical transformation. Compound 1 represents the rare examples of the flavonoid featuring a deoxy glucose sugar moiety...
December 4, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29195928/acoustic-cavitation-assisted-extraction-of-pectin-from-waste-grapefruit-peels-a-green-two-stage-approach-and-its-general-mechanism
#5
Wenjun Wang, Xingzhu Wu, Thunthacha Chantapakul, Danli Wang, Song Zhang, Xiaobin Ma, Tian Ding, Xingqian Ye, Donghong Liu
In the present study, acoustic cavitation assisted extraction (ACAE) which is a green approach was used for two-stage extraction of pectin from waste grapefruit peels regarding the specific two stages and different peel particle sizes. The yields, physicochemical properties and structure prediction of pectin from different peel particle sizes and different stages by two methods were compared. Highest pectin yield of 23.49% was achieved at the peel size of 0.9mm and was slightly higher than the yield of 23.44% at finer particle size...
December 2017: Food Research International
https://www.readbyqxmd.com/read/29186249/tretinoin-peel-a-critical-view
#6
Juliana Mayumi Sumita, Gislaine Ricci Leonardi, Ediléia Bagatin
The tretinoin peel, also known as retinoic acid peel, is a superficial peeling often performed in dermatological clinics in Brazil. The first study on this was published in 2001, by Cuce et al., as a treatment option for melasma. Since then, other studies have reported its applicability with reasonable methodology, although without a consistent scientific background and consensus. Topical tretinoin is used for the treatment of various dermatoses such as acne, melasma, scars, skin aging and non-melanoma skin cancer...
May 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29164826/comparative-study-of-buffered-50-glycolic-acid-ph-3-0-0-5-salicylic-acid-solution-vs-jessner-s-solution-in-patients-with-acne-vulgaris
#7
Jeong In Jae, Hyun Dong Ju, Kim Dong Hyun, Moon Soo Yoon, Hee Jung Lee
BACKGROUND: Superficial chemical peels are frequently used in acne vulgaris treatment. Although glycolic acid (GA) has been widely used in clinical practice, its pH ranges from 0.08-2.75 and thus should be neutralized after application to avoid burns. OBJECTIVE: To evaluate treatment efficacy and safety of chemical peeling using buffered 50% GA (pH 3.0) + 0.5% salicylic acid (SA) solution that does not need to be neutralized in the treatment of acne vulgaris compared to the conventional peeling using Jessner's solution...
November 21, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29155374/testing-the-waters-from-moringa-seeds-to-fruit-peels-researchers-are-seeking-out-new-ways-to-clean-up-the-world-s-drinking-water
#8
Wudan Yan
Water on Earth-in our oceans, rivers, lakes, and wetlands-might seem plentiful, but water that is clean and safe enough to drink actually isn't so abundant. Nearly one in ten people still lacks access to safe water worldwide, according to the World Health Organization. In some of the world's most remote and impoverished communities, people live with no taps, showers, flushing toilets, or nearby springs, making it difficult to keep water supplies safe from bacteria, chemicals, and particulates. Moreover, access to clean drinking water isn't just a problem in the developing world; groundwater in developed countries is typically used far more quickly than it is being replenished...
November 2017: IEEE Pulse
https://www.readbyqxmd.com/read/29120775/preparation-and-prebiotic-potential-of-pectin-oligosaccharides-obtained-from-citrus-peel-pectin
#9
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
https://www.readbyqxmd.com/read/29117732/phytochemical-constituents-from-dietary-plant-citrus-hystrix
#10
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
https://www.readbyqxmd.com/read/29115662/chemical-mapping-of-essential-oils-flavonoids-and-carotenoids-in-citrus-peels-by-raman-microscopy
#11
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
https://www.readbyqxmd.com/read/29100146/prospects-of-banana-waste-utilization-in-wastewater-treatment-a-review
#12
REVIEW
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
https://www.readbyqxmd.com/read/29082058/trichloroacetic-acid-ingestion-self-harm-attempt
#13
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
https://www.readbyqxmd.com/read/29072844/advances-in-postharvest-technologies-to-extend-the-storage-life-of-minimally-processed-fruits-and-vegetables
#14
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
https://www.readbyqxmd.com/read/29068926/the-evolution-of-chemical-peeling-and-modern-day-applications
#15
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
https://www.readbyqxmd.com/read/29064981/commentary-on-chemical-peels-in-men
#16
COMMENT
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.]
https://www.readbyqxmd.com/read/29064096/chemical-peels-a-review-of-current-practice
#17
REVIEW
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
https://www.readbyqxmd.com/read/29057567/q-switched-nd-yag-laser-alone-or-with-modified-jessner-chemical-peeling-for-treatment-of-mixed-melasma-in-dark-skin-types-a-comparative-clinical-histopathological-and-immunohistochemical-study
#18
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
https://www.readbyqxmd.com/read/29055721/the-essential-oil-from-citrus-limetta-risso-peels-alleviates-skin-inflammation-in-vitro-and-in-vivo-study
#19
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
https://www.readbyqxmd.com/read/29049561/cleopatra-and-sour-milk-the-ancient-practice-of-chemical-peeling
#20
Susruthi Rajanala, Neelam A Vashi
No abstract text is available yet for this article.
October 1, 2017: JAMA Dermatology
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