Albumen foam stability and s-ovalbumin contents in eggs coated with whey protein concentrate

Food products such as breads, cakes, crackers, meringues, ice creams and several bakery items depend on air incorporation to maintain their texture and structure during or after processing. Proteins are utilized in the food industry since they improve texture attributes through their ability to encapsulate and retain air. The objectives of this work were to quantify s-ovalbumin contents in albumen and to determine alterations in egg white foam stability in fresh eggs, and in eggs coated and non-coated with a whey protein-based concentrate film (WPC), stored at 25°C for 28 days. The volume of drained liquid was higher in non-coated eggs than in coated eggs stored at 25°C at all storage periods. The difference on the third day of storage was in the order of 59% between coated and non-coated eggs, while on the twenty-eighth day it was 202%. During the storage period, an increase in pH and drainage volume was observed for non-coated eggs. After three days, the non-coated eggs showed a s-ovalbumin content 33% higher than coated eggs; this increase jumped to 205% at 28 days of storage. There was a positive correlation between s-ovalbumin content and the volume of drained liquid for coated and non-coated eggs; in other words, when the s-ovalbumin content increased, there was an increase in the volume of drained liquid and a decrease in foam stability. WPC coating maintain egg quality, since it is an effective barrier against the loss of CO2, avoiding changes in the pH of egg white

Transtorno dismórfico corporal em dermatologia: diagnóstico, epidemiologia e aspectos clínicos Body dysmorphic disorder in dermatology: diagnosis, epidemiology and clinical aspects

São cada vez mais frequentes as queixas cosméticas, uma vez que objetivam a perfeição das formas do corpo e da pele. Os dermatologistas são consultados para avaliar e tratar essas queixas. Sendo assim, é importante conhecer o Transtorno Dismórfico Corporal, inicialmente chamado de "dismorfofobia", pouco estudado até recentemente. Esse transtorno é relativamente comum, por vezes, incapacitante, e envolve uma percepção distorcida da imagem corporal, caracterizada pela preocupação exagerada com um defeito imaginário na aparência ou com um mínimo defeito corporal presente. A maioria dos pacientes apresenta algum grau de prejuízo no funcionamento social e ocupacional, e como resultado de suas queixas obsessivas com a aparência, podem desenvolver comportamentos compulsivos, e, em casos mais graves, há risco de suicídio. O nível de crença é prejudicado, visto que não reconhecem o seu defeito como mínimo ou inexistente e, frequentemente, procuram tratamentos cosméticos para um transtorno psíquico. A prevalência do transtorno, na população geral, é de 1 a 2% e, em pacientes dermatológicos e de cirurgia cosmética, de 2,9 a 16%. Considerando a alta prevalência do Transtorno Dismórfico Corporal, em pacientes dermatológicos, e que os tratamentos cosméticos raramente melhoram seus sintomas, o treinamento dos profissionais para a investigação sistemática, diagnóstico e encaminhamento para tratamento psiquiátrico é fundamental.<br>Cosmetic concerns are becoming increasingly common in view of the obsession with the perfect body and skin. Dermatologists are often seen to evaluate and treat these conditions. Therefore, it is important to acknowledge the existence of Body Dysmorphic Disorder, also known as dysmorphophobia. Despite being relatively common, this disorder has not been well researched. Sometimes causing impairment, the disease involves a distorted body image perception characterized by excessive preoccupation with a perceived defect. Most of the patients experience some degree of impairment in social or occupational functioning and, as a result of their obsessive concerns, they may develop compulsive behaviors. In severe cases, there is a risk of suicide. Most individuals do not acknowledge that their defect is minimal or nonexistent and seek out cosmetic treatments for a psychiatric disorder. The prevalence of this disorder among the general population ranges from 1 to 2 % and in dermatological and cosmetic surgery patients, from 2.9 to 16%. The training of professionals to systematically investigate, diagnose, and refer these patients to adequate psychiatric treatment is essential, considering the high prevalence of Body Dysmorphic Disorder in dermatological patients and the fact that cosmetic treatments rarely improve their condition