Nutritional and microbiological quality of commercial and homemade blenderized whole food enteral diets for home-based enteral nutritional therapy in adults.

BACKGROUND & AIMS: Serious nutritional and contamination risks may be involved in the preparation of blenderized tube-feeding diets and in the handling of commercial diets. Their nutritional and microbiological quality in home settings is unknown. The objective of this study was to assess the nutritional and microbiological quality of commercial enteral and homemade blenderized whole foods diets intended to adult patients in home nutritional therapy. METHODS: In a cross sectional study, 66 samples of commercial (CD) and noncommercial (NCD) enteral diets were collected at the homes of patients in home enteral nutritional therapy, 33 of each type. Commercial diets were either powder (PCD; n = 13) or liquid (LCD; n = 20). The samples were analyzed in laboratory to assess their nutritional and microbiological quality. Anthropometric data of mid upper arm circumference (MUAC) and triceps skinfold (TST) thickness were obtained from the patients' medical records. RESULTS: NCD presented significantly lower values for protein, fat, fiber, carbohydrate and energy while water content was significantly higher. PCD and LCD did not show any statistically significant differences between them. In the NCD, the values measured for macronutrients and energy corresponded to less than 50% of the prescribed values (except for fat). In CD, protein value was about 20% more than the prescribed value; fat and energy values corresponded to approximately 100% of the prescription, while carbohydrate corresponded to 92%. Regardless the type of the diet, prevalence of undernutrition was high in both groups though patients of the NCD presented a higher percentage. Samples of NCD complied significantly less with the microbiological standards; only 6.0% complied with the standard for coliform bacteria. Escherichia coli was detected in 10, 2, and 2 samples of NCD, PCD and LCD, respectively. CONCLUSIONS: Homemade blenderized enteral diets showed low values of energy and macronutrients, delivered less than 50% of the prescribed values and had high levels of bacterial contamination.

Qualidade nutricional e microbiológica de dietas enterais artesanais padronizadas preparadas nas residências de pacientes em terapia nutricional domiciliar / Nutritional and microbiological quality of standardized homemade enteral diets for patients in home nutritional therapy

OBJETIVO: Avaliar as propriedades físico-químicas, microbiológicas e nutricionais de dietas enterais artesanais padronizadas preparadas nos domicílios de pacientes em terapia nutricional domiciliar. MÉTODOS: Foram desenvolvidas duas formulações de dietas enterais (F1=1,2kcal/mL e F2=1,5kcal/mL), elaboradas com maltodextrina (155/155g), concentrado proteico de soro de leite (30/15g) e óleos vegetais (30/60g) dissolvidos em água (q.s.p.1000mL). Os cuidadores receberam os ingredientes e as medidas padrão e foram orientados quanto ao preparo e às boas práticas de manipulação. O estudo teve duração de quatro meses, e amostras das dietas preparadas nos domicílios de 33 pacientes foram coletadas e analisadas no início e no final deste período. As amostras foram avaliadas quanto à sua adequação percentual em relação aos valores prescritos de macronutrientes e energia, bem como aos padrões microbiológicos estabelecidos pela legislação vigente. RESULTADOS: As dietas formuladas (Formulação 1/Formulação 2) apresentaram os seguintes teores de macronutrientes, energia e osmolalidade: água - 73,5/70,0%; proteína - 4,4/6,0%; lipídeo - 4,3/6,6%; carboidrato - 16,9/16,4%; energia - 120/150kcal/100mL; osmolalidade - 440/450mOsm/kg.H2O. As variações nas adequações percentuais das amostras domiciliares foram menores que 20,0% tanto na primeira quanto na última amostragem. As proporções de amostras em desacordo com os padrões legais foram significantemente menores nas amostras finais, 24,0% e 36,0% para bactérias mesófilas e coliformes, respectivamente. CONCLUSÃO: O preparo das dietas nos domicílios apresentou boa reprodutibilidade; no entanto, a qualidade microbiológica ainda permanece uma questão preocupante, exigindo uma atuação cuidadosa do profissional de saúde nos domicílios.

OBJECTIVE: This study assessed the physical, chemical, microbiological and nutritional properties of standardized enteral diets prepared at the homes of patients receiving nutritional therapy. METHODS: Two enteral diet formulations were developed (F1=1.2kcal/mL and F2=1.5kcal/mL) containing maltodextrin (155/155g), whey protein concentrate (30/15g) and vegetable oils (30/60g) dissolved in water (q.s.p.1000mL). The ingredients and measuring devices were given to the caregivers, along with preparation instructions and advice on good handling practices. The study lasted four months and the diets prepared at the homes of 33 patients were collected at baseline and endline for analysis. The samples were analyzed to determine the compliance of their macronutrient and energy contents with the prescription and their microbiological contents with the legislation. RESULTS: The study diets (Formulation 1/Formulation 2) contained the following macronutrient and energy contents and osmolality: water - 73.5/70.0%; protein - 4.4/6.0%; lipids - 4.3/6.6%; carbohydrate - 16.9/16.4%; energy - 120/150kcal/100mL; osmolality - 440/450mOsm/kg.H2O. The percent adequacy of the homemade diets did not vary by more than 20.0% at baseline or end of study. The percentages of samples that did not meet the legal standards were significantly lower at the end of the study: 24.0% and 36.0% for mesophilic bacteria and coliforms, respectively. CONCLUSION: Homemade diets presented good reproducibility but their microbiological quality remains a matter of concern, indicating that health professionals must be careful when working at home.

Nutritional quality and osmolality of home-made enteral diets, and follow-up of growth of severely disabled children receiving home enteral nutrition therapy.

This study evaluated the nutritional quality of home-made enteral diets and their effect on growth parameters. Thirty pediatric patients receiving only homemade enteral diets were enrolled. Samples of milk-based (MB) and soup-based (SP) feeds were taken for chemical analyses. The children's anthropometric indexes were assessed. In the MB, the measured values for the macronutrients and energy corresponded to approximately 70% of the prescribed values. Conversely, the SP measured values corresponded to less than 50% of the prescribed values, except for carbohydrate. The prevalence of underweight was 30% (9/30) at the time of entry into home nutritional therapy and declined to 20% (6/30) at the time of the study (p = 0.007). Stunting increased throughout the follow up, from 30% (9/30) to 53% (16/30; p = 0.511). Obesity prevalence fell from 17% (4/23) to 9% (2/23; p < 0.001). Despite their inconsistent levels of macronutrients and energy, home-made enteral diets had no negative effect on the patients' weights.