RESUMEN
The aim of this study was to determine a reliable procedure for the quantification of organic acids, alcohol soluble sugars and sugar alcohols in fruit flesh by means of a rapid GLC method, without resorting to methoximation of sugars and employing apricot as a model. The use of two internal standards, an accurate derivatization and a proper calibration of the GLC conditions allowed an accurate quantitative analysis of the compounds detected in the unknown samples. This simple procedure improves the speed of preparation of the trimethylsilyl derivatives and is highly reproducible. Variability was found between years for each of the five cultivars studied and for each compound in terms of absolute values, whereas the percentage incidence of the single sugars as a total was more stable over the two years of observation.
Asunto(s)
Carbohidratos/análisis , Ácidos Carboxílicos/análisis , Cromatografía de Gases/métodos , Frutas/química , Calibración , Carbohidratos/química , Ácidos Carboxílicos/química , Ácido Cítrico/análisis , Fructosa/análisis , Frutas/clasificación , Glucosa/análisis , Indicadores y Reactivos/química , Modelos Lineales , Malatos/análisis , Sorbitol/análisis , Sacarosa/análisis , Compuestos de Trimetilsililo/químicaRESUMEN
The incidence of lipomas of the colon is difficult to evaluate due to lack of symptoms. They are often discovered by chance during endoscopic or radiological examination and sometimes display only obstructive symptoms. A barium enema may be useful for the preoperative diagnosis of lipoma of the colon. The difficulty of obtaining a clear preoperative diagnosis influences the type of surgical treatment undertaken. Thus, a resection is often preferred to the simple removal of the lipoma by colotomy or endoscopy.
Asunto(s)
Neoplasias del Colon/cirugía , Lipoma/cirugía , Neoplasias del Colon/diagnóstico , Neoplasias del Colon/diagnóstico por imagen , Colonoscopía , Colostomía , Femenino , Humanos , Lipoma/diagnóstico , Lipoma/diagnóstico por imagen , Masculino , Persona de Mediana Edad , RadiografíaRESUMEN
The prognosis of gas gangrene is changing as the means of treatment become more accurate and are implemented earlier. The authors, in their work referring to 10 cases of gas gangrene, point out to the extreme fastness of debridement and immediate exeresis, of wide-spectrum antibiotic protection and of caloric balance, associated to a treatment using trace elements. The importance of hyperbaric oxygen therapy seems to be increasingly proven with time. Lastly, in their general experience of treatment, the authors suggest the use of a specific frequency soft laser therapy, which might speed up the process of tissue repair.