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https://www.readbyqxmd.com/read/28676002/recent-advances-in-polymer-based-wound-dressings-for-the-treatment-of-diabetic-foot-ulcer-an-overview-of-state-of-the-art
#1
Zahid Hussain, Hnin Ei Thu, Ahmad Nazrun Shuid, Haliza Katas, Fahad Hussain
Diabetic foot ulcers (DFUs) are the chronic, non-healing complications of diabetic mellitus which compels a significant burden to the patients and the healthcare system. Peripheral vascular disease, diabetic neuropathy, and abnormal cellular and cytokine/chemokine activity are among the prime players which exacerbate the severity and prevent wound reapir. Unlike acute wounds, DFUs impose a substantial challenge to the conventional wound dressings and demand the development of novel and advanced wound healing modalities...
July 4, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28658964/products-of-chickpea-processing-as-texture-improvers-in-gluten-free-bread
#2
Libby G Bird, Casey L Pilkington, Agung Saputra, Luca Serventi
Recent market developments raised the need for alternatives to hydrocolloids as texture improver in gluten-free bread. Chickpea exerts several physicochemical properties (water- and oil-binding, emulsifying and foaming) that might address this need. Therefore, the effect of processing on chickpea functionality was tested on low ingredient dose, comparably to that of common hydrocolloids. Control bread was small, hard and with low gas retention ability as shown by microscopy, depicting holes inside crumb pores...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28639707/dressings-and-topical-agents-for-treating-pressure-ulcers
#3
REVIEW
Maggie J Westby, Jo C Dumville, Marta O Soares, Nikki Stubbs, Gill Norman
BACKGROUND: Pressure ulcers, also known as bedsores, decubitus ulcers and pressure injuries, are localised areas of injury to the skin or the underlying tissue, or both. Dressings are widely used to treat pressure ulcers and promote healing, and there are many options to choose from including alginate, hydrocolloid and protease-modulating dressings. Topical agents have also been used as alternatives to dressings in order to promote healing.A clear and current overview of all the evidence is required to facilitate decision-making regarding the use of dressings or topical agents for the treatment of pressure ulcers...
June 22, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28627390/classification-of-hydrocolloids-based-on-in-vitro-starch-digestibility-and-rheological-properties-of-segoami-gel
#4
Da Sol Jung, In Young Bae, Im Kyung Oh, Sang-Ik Han, Sung-Joon Lee, Hyeon Gyu Lee
The influence of hydrocolloids on in vitro starch digestibility and rheological properties of Segoami (a new rice variety fortified with amylose and dietary fiber) gel was investigated in terms of type (sodium alginate, arabic gum, guar gum, locust bean gum, and xanthan gum) and addition levels (0.3-0.7% for rice flour weight) of hydrocolloids. In addition, the behavior of hydrocolloids was analyzed by principal component analysis (PCA) based on both properties of various Segoami-hydrocolloids gels. The first and second principle components (PC) explained 80...
June 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28598907/treating-pain-on-skin-graft-donor-sites-review-and-clinical-recommendations
#5
Sarthak Sinha, Amanda J Schreiner, Jeff Biernaskie, Duncan Nickerson, Vincent A Gabriel
Split-thickness skin grafting (STSG) is the most common reconstructive procedure in managing burn injuries. Harvesting split-thickness skin creates a new partial thickness wound referred to as the donor site. Pain at the donor site is reported to be one of the most distressing symptoms during the early post-operative period. Here, we a) identify strategies for managing donor site pain, b) assess the quality of individual studies and c) formulate evidence-based recommendations based on the amount and consistency of evidence...
June 9, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28586232/does-6-hours-of-contact-with-alginate-impression-material-affect-dental-cast-properties
#6
Amna Adam Ibrahim, Mohammed Nasser Alhajj, Nadia Khalifa, Magdi Wadie Gilada
Alginate impression (irreversible hydrocolloid) material is commonly used in dental practice because it is easy to mix, low in cost, and well tolerated by patients. The material is not dimensionally stable, however; thus, it is necessary to pour the impression immediately after the molding is accomplished, or within 60 minutes if the impression is kept in 100% humidity. Excessive contact of the alginate impression with the cast model over time may affect the model's properties. In this study, the authors tested the effect of contact time between an alginate impression and type III dental stone on cast model properties...
June 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28581065/physical-and-sensory-properties-of-gelatin-from-seabass-lates-calcarifer-as-affected-by-agar-and-%C3%AE%C2%BA-carrageenan
#7
Sittichoke Sinthusamran, Soottawat Benjakul, Yacine Hemar
Physical and sensory properties of gelatin from skin and swim bladder of seabass (SK and SW, respectively) as affected by agar or κ-carrageenan at 10 and 20% substitution were investigated. Hardness of both SK and SW gels containing agar increased with increasing level of agar. However, the addition of κ-carrageenan lowered hardness of mixed gels. Springiness and cohesiveness of either SK or SW gels decreased as the level of both agar or κ-carrageenan increased. Gelling and melting temperatures generally increased when the level of hydrocolloids was increased...
June 5, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28573725/effects-of-cellulose-derivative-hydrocolloids-on-pasting-viscoelastic-and-morphological-characteristics-of-rice-starch-gel
#8
Jing Sun, Xiao-Bo Zuo, Sheng Fang, Hua-Neng Xu, Jie Chen, Yue-Cheng Meng, Tao Chen
Effects of sodium carboxymethyl cellulose (CMC) and hydroxypropyl methyl cellulose (HPMC) on the pasting, viscoelastic, and morphological properties of rice starch gel were studied. The addition of CMC increased the peak and trough viscosities, while decreased the final and setback viscosities of rice starch. The peak and trough viscosities of rice starch gel were only little affected by the addition of HPMC. The dynamic viscoelastic result showed that the addition of CMC significantly increased the values of storage modulus (G') and loss modulus (G″), while reduced the value of tanδ as compared to the control sample...
June 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28559619/evaluation-of-different-hydrocolloids-to-improve-dough-rheological-properties-and-bread-quality-of-potato-wheat-flour
#9
Xingli Liu, Taihua Mu, Karim Diego Yamul, Hongnan Sun, Miao Zhang, Jingwang Chen, Marie Laure Fauconnier, Perez Vanina Andrea
The aim of study was to investigate the effect of hydroxylpropylmethylcellulose (HPMC), arabic gum (AG), konjac glucomannan (KG) and apple pectin (AP) at 2% (w/w, potato-wheat flour basis) on the potato-wheat dough (the mass ratio was 1:1) rheological, fermentation and bread making properties. The tan δ of potato-wheat dough was significantly increased upon addition of adding HPMC which was close to wheat dough (0.531). Moreover, dough height during fermentation process was significantly improved on addition of hydrocolloids, with the order of HPMC (23...
May 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28543050/effects-of-carrot-pomace-powder-and-a-mixture-of-pectin-and-xanthan-on-the-quality-of-gluten-free-batter-and-cakes
#10
Mahsa Majzoobi, Zahra Vosooghi Poor, Gholamreza Mesbahi, Jalal Jamalian, Asgar Farahnaky
Carrot pomace powder (CPP) is a valuable by-product of carrot processing containing nutrients and fibre and can be utilized for enrichment of gluten-free products. The main purpose of this study was to determine the effects of various levels of CPP (0, 10, 20 and 30%) and a mixture of hydrocolloids (HC) including pectin and xanthan (1.5% of each) on the quality of batter and gluten-free cakes. With increasing the level of CPP and inclusion of HC the viscosity of the batter increased significantly from 87 mPas for the control to > 7000 mPas for 30%CCP+HC sample...
May 20, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28522999/fermentation-ph-modulates-the-size-distributions-and-functional-properties-of-gluconobacter-albidus-tmw-2-1191-levan
#11
Tharalinee Ua-Arak, Frank Jakob, Rudi F Vogel
Bacterial levan has gained an increasing interest over the last decades due to its unique characteristics and multiple possible applications. Levan and other exopolysaccharides (EPSs) production are usually optimized to obtain the highest concentration or yield while a possible change of the molecular size and mass during the production process is mostly neglected. In this study, the molar mass and radius of levan samples were monitored during fermentations with the food-grade, levan-producing acetic acid bacterium Gluconobacter (G...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28514047/a-simplified-approach-for-fabrication-of-a-lightweight-individualized-impression-tray-with-the-aid-of-existing-obturator-prosthesis-using-lost-salt-technique
#12
Amar Bhochhibhoya, Binod Acharya, Samskar Bickram Rana, Rinu Sharma, Brijesh Maskey
Maxillary defects resulting from ablative oncologic surgery can be extensive and usually have complex contours. Impression procedures for such defects can be time consuming and cumbersome, challenging the skills of even the most-experienced clinician. A well-oriented impression tray with proper extension and adequate contour is essential for successfully capturing the relevant details in impression. This article describes a method using the patient's existing obturator prosthesis to simplify and expedite the fabrication of a lightweight individualized impression tray directly on an irreversible hydrocolloid impression, thus avoiding the preliminary impression procedure for the patient...
May 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28506726/influence-of-xanthan-guar-cmc-and-gum-acacia-on-functional-properties-of-water-chestnut-trapa-bispinosa-starch
#13
Zubala Lutfi, Anjum Nawab, Feroz Alam, Abid Hasnain, Syed Zia Haider
This study was performed to determine the effect of xanthan, guar, CMC and gum acacia on functional and pasting properties of starch isolated from water chestnut (Trapa bispinosa). Morphological properties of water chestnut starch with CMC were studied by scanning electron microscopy (SEM). The addition of hydrocolloids significantly enhanced the solubility of water chestnut starch (WCS) while reduced swelling power and freeze-thaw stability. The hydrophilic tendency of WCS was increased by xanthan gum; however, with addition of gum acacia it decreased significantly...
May 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28504166/functionality-of-chitosan-in-batter-formulations-for-coating-of-fish-sticks-effect-on-physicochemical-quality
#14
K A Martin Xavier, Hauzoukim, Nagalakshmi Kannuchamy, Amjad K Balange, M K Chouksey, Venkateshwarlu Gudipati
Chitosan is a natural polymer having diverse applications in food industry. The present study was undertaken to evaluate chitosan as a hydrocolloid in batter composition in developing enrobed fish sticks with better functional properties and improved quality. Different concentrations of chitosan gel were made in acetic acid medium and incorporated into batter for making enrobed fish sticks. Coating parameters, fat uptake, oil reduction, chemical quality parameters, instrumental texture analysis and colour were studied...
August 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28499089/nanoencapsulation-of-aloe-vera-in-synthetic-and-naturally-occurring-polymers-by-electrohydrodynamic-processing-of-interest-in-food-technology-and-bioactive-packaging
#15
Sergio Torres-Giner, Sabina Wilkanowicz, Beatriz Melendez-Rodriguez, Jose M Lagaron
This work originally reports on the use of electrohydrodynamic processing (EHDP) to encapsulate Aloe vera (AV, Aloe barbadensis Miller) using both synthetic polymers, i.e., polyvinylpyrrolidone (PVP) and poly(vinyl alcohol) (PVOH), and naturally occurring polymers, i.e., barley starch (BS), whey protein concentrate (WPC), and maltodextrin. The AV leaf juice was used as the water-based solvent for EHDP, and the resultant biopolymer solution properties were evaluated to determine their effect on the process. Morphological analysis revealed that, at the optimal processing conditions, synthetic polymers mainly produced fiber-like structures, while naturally occurring polymers generated capsules...
June 7, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28464563/shear-and-extensional-rheology-of-commercial-thickeners-used-for-dysphagia-management
#16
Muhammad Qazi Waqas, Johan Wiklund, Annika Altskär, Olle Ekberg, Mats Stading
People who suffer from swallowing disorders, commonly referred to as dysphagia, are often restricted to a texture-modified diet. In such a diet, the texture of the fluid is modified mainly by the addition of gum or starch-based thickeners. For optimal modification of the texture, tunable rheological parameters are shear viscosity, yield stress, and elasticity. In this work, the flow properties of commercial thickeners obtained from major commercial suppliers were measured both in shear and extensional flow using a laboratory viscometer and a newly developed tube viscometry technique, termed Pulsed Ultrasound Velocimetry plus Pressure Drop (PUV + PD)...
March 15, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28403529/new-hydrocolloid-based-emulsions-for-replacing-fat-in-panna-cottas-a-structural-and-sensory-study
#17
Jennifer Borreani, Isabel Hernando, Ana Salvador, Amparo Quiles
BACKGROUND: Dairy desserts are popular traditional products but because of their high calorie or fat content, they can be unsuitable for people who have certain dietary requirements. The aim of this study was to design panna cottas with similar organoleptic and textural properties to the traditional ones but with a lower fat content, by replacing part of the cream with new emulsions prepared with hydrocolloids (cellulose ethers), namely methylcellulose (MC) and hydroxypropyl methylcellulose (HPMC)...
April 12, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28402599/obtention-and-characterization-of-dried-gels-prepared-with-whey-proteins-honey-and-hydrocolloids-mixture
#18
Ana C Rodriguez, Martín R Torrez Irigoyen, Alba S Navarro, Diego K Yamul
BACKGROUND: Large amounts of honey and liquid whey derived from the dairy industry are produced in Argentina. Honey is exported in bulk and whey is transformed into whey protein concentrates and isolates. The objective of this work was to investigate the effect of pH, composition and storage time on the properties of dried gels with honey, whey proteins and hydrocolloids. RESULTS: Color properties varied according to pH and composition. The fracture stress of dried gels prepared with corn starch was higher than that of gels prepared with guar gum in all conditions assayed...
April 12, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28384975/perception-of-acceptable-range-of-smiles-by-specialists-general-dentists-and-lay-persons-and-evaluation-of-different-aesthetic-paradigms
#19
Mainak Kanti Saha, Margie Khatri, Suparna Ganguly Saha, Sandeep Dubey, Divya Saxena, Neelam Vijaywargiya, Shubham Kala
INTRODUCTION: One of the most important goals of restorative dentistry is to restore the patient's aesthetic. Smile analysis is subjective and it differs from person to person. An aesthetic smile involves a harmonious relationship between various parameters including the hard and soft tissues. AIM: The aim of the study was to identify the acceptable range of several smiles (alone and in conjunction with the face) by specialists, general dentists as well as lay persons; and to identify the values of different criteria i...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28379607/randomized-clinical-trial-of-autologous-skin-cell-suspension-for-accelerating-re-epithelialization-of-split-thickness-donor-sites
#20
RANDOMIZED CONTROLLED TRIAL
Z Hu, D Guo, P Liu, X Cao, S Li, J Zhu, B Tang
BACKGROUND: Split-thickness skin graft (STSG) is used frequently, but may result in complications at the donor site. Rapid healing of donor-site wounds is critical to relieving morbidity. This study investigated whether autologous skin cell suspension could improve healing of STSG donor-site wounds. METHODS: Between September 2014 and February 2016, patients requiring STSGs were randomized to receive autologous skin cell suspension plus hydrocolloid dressings (experimental group) or hydrocolloid dressings alone (control group) for the donor site...
June 2017: British Journal of Surgery
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