scholarly journals Analysis of Thermal Sensitivity of Human Cytomegalovirus Assayed in the Conventional Conditions of a Human Milk Bank

2021 ◽  
Vol 9 ◽  
Author(s):  
Antoni Gayà ◽  
Massimo Rittà ◽  
David Lembo ◽  
Paola Tonetto ◽  
Francesco Cresi ◽  
...  

One of the main concerns in human milk banks (HMB) is the transmission of human cytomegalovirus (HCMV) that could be present in the milk of infected women. There are consistent data showing that this virus is destroyed by Holder pasteurization (62.5°C for 30 min), but there is a lack of information about the response of the virus to the treatment at lower temperatures in strict HMB conditions. In order to analyze the effectiveness of different temperatures of pasteurization to eliminate HCMV in human milk, a preliminary assay was performed incubating HCMV-spiked raw milk samples from donor mothers at tested temperatures in a PCR thermocycler and the viral infectivity was assayed on cell cultures. No signs of viral replication were observed after treatments at temperatures equal or >53°C for 30, 20, and 10 min, 58°C for 5 min, 59°C for 2 min, and 60°C for 1 min. These data were confirmed in a pasteurizer-like model introducing HCMV-spiked milk in disposable baby bottles. No viral infectivity was detected on cell cultures after heating treatment of milk for 30 min at temperatures from 56 to 60°C. Thus, our results show that by using conventional pasteurization conditions, temperatures in the range of 56–60°C are enough to inactivate HCMV. Consequently, we consider that, in order to provide a higher quality product, the current recommendation to pasteurize both mother's own milk and donated milk at 62.5°C must be re-evaluated.

2020 ◽  
Vol 9 (12) ◽  
pp. e26891211136
Author(s):  
Luciana Pelissari Manin ◽  
Adriela Albino Rydlewski ◽  
Eloize Silva Alves ◽  
Isadora Boaventura Ponhozi ◽  
Matheus Campos Castro ◽  
...  

The aim of this study was to analyze the acidity, fatty acid (FA) composition and the triacylglycerol (TAGs) profile of human milk (HM) from three lactation phases (colostrum, transitional and mature) submitted to different treatments (raw milk, pasteurized, pasteurized in conjunction with lyophilization), in order to verify whether these processes applied to the samples can influence the characteristics of the analyzed components. To carry out the analyzes, the project was approved by the ethics committee and the HM was acquired at the Human Milk Bank (HMB) of the University Hospital of Maringá - HUM (Paraná, Brazil). The acidity analysis was performed using the titratable acidity method in Dornic degrees (ºD), the composition in FAs from Gas Chromatography with Flame Ionization Detector (GC-FID), and the TAGs profile by Mass Spectrometry with Electrospray Ionization source (ESI-MS). From the results obtained, it was possible to observe that the Dornic acidity and the composition in AGs did not undergo significant changes by the Tukey test (p<0.05) and the TAG profile remained similar after the application of the processing, when compared samples of raw HM from their respective phase. Therefore, the pasteurization technique in conjunction with freeze drying can be a promising alternative for HM storage and conservation in HMBs, as it guarantees the preservation of the evaluated components, in addition to reducing the storage volume and facilitating the transport of this HM.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Nathália Carolina Tomazelli Crespo ◽  
Rosimere Ferreira Santana ◽  
Valdecyr Herdy Alves ◽  
Audrey Vidal Pereira ◽  
Giovanna Rosario Soanno Marchiori ◽  
...  

Objetivo: conhecer o perfil de Diagnósticos de Enfermagem em mulheres nutrizes atendidas no Banco de Leite Humano. Metodologia: estudo descritivo, com 30 mulheres atendidas no Banco de Leite Humano entre doadoras e não doadoras. Os dados foram coletados nos meses de março a maio de 2012. A análise se deu por meio de estatística descritiva. Resultados: os diagnósticos foram descritos para dois grupos: Não doadoras: Disposição para conhecimento melhorado (100,0%), Risco de infecção (80,9%), Integridade Tissular prejudicada (80,9%), Padrão de sono prejudicado (76,1%), Conhecimento deficiente (66,6%), Ansiedade (52,3%); Em Doadoras: Padrão de sono prejudicado (77,7%) e Ansiedade (55,5%). Conclusão: a taxonomia diagnóstica encontra-se de acordo com a população estudada. Validou-se a necessidade do uso dessa tecnologia como um sistema padrão de linguagem.Descritores: Bancos de leite; Diagnóstico de enfermagem; Cuidados de enfermagem; Saúde da mulher; Aleitamento materno.NURSING DIAGNOSIS IDENTIFIED IN WOMEN AT THE HUMAN MILK BANKObjective: to know the profile of Nursing Diagnosis in women hosted in the Human Milk Bank. Methodology: descriptive study, with 30 women attended at the Human Milk Bank between donors and no donors. Data were collected from March to May 2012. The analysis was done through simple descriptive statistics. Results: diagnosis were described for two groups: No donors: Readiness for enhanced knowledge (100.0%), Risk for infection (80.9%), Impaired tissue integrity (80.9%), Disturbed sleep pattern (76.1%), Deficient knowledge (66.6%), Anxiety (52.3%); In Donors: Disturbed sleep pattern (77.7%) and Anxiety (55.5%). Conclusion: the diagnostic taxonomy is in agreement with the studied population. The need to use this technology as a standard language system was validated.Descriptors: Milk banks; Nursing diagnosis; Nursing care; Women’s health; Breastfeeding.ENFERMERÍA DE DIAGNÓSTICO IDENTIFICADOS EN MUJERES ASISTIDA EN BANCO DE LECHE HUMANAObjetivo: conocer el perfil de los diagnósticos de enfermería de las mujeres dio la bienvenida al Banco de Leche Humana. Metodology: estúdio descriptivo, con 30 mujeres atendidas enel Banco de Leche Humana entre los donantes y no donantes. Los datos fueron recolectados entre marzo y mayo de 2012. El análisis se realizó utilizando estadísticas descriptivas simples. Resultados: los diagnósticos han sido descritos por dos grupos: No donantes: Disposición para mejorar los conocimientos (100%), Riesgo de infección (80,9%), Deterioro de la integridade cutánea (80,9%), Trastorno del patrón de sueño (76, 1%), Conocimientos deficientes (66,6%), Ansiedad (52,3%); Em Donantes: Trastorno del patrón de sueño (77,7%) y Ansiedad (55,5%). Conclusión: la taxonomía diagnóstica es función de la población estudiada. Han verificado la necesidad de la utilización de esta tecnología como un sistema estándar de lenguaje.Descriptores: Bancos de leche; Diagnóstico de enfermería; Atención de enfermería; Salud de lamujer; Lactancia materna.


2011 ◽  
Vol 78 (4) ◽  
pp. 385-390 ◽  
Author(s):  
Priscilla A Melville ◽  
Nilson R Benites ◽  
Monica Ruz-Peres ◽  
Eugenio Yokoya

The presence of yeasts in milk may cause physical and chemical changes limiting the durability and compromising the quality of the product. Moreover, milk and dairy products contaminated by yeasts may be a potential means of transmission of these microorganisms to man and animals causing several kinds of infections. This study aimed to determine whether different species of yeasts isolated from bovine raw milk had the ability to develop at 37°C and/or under refrigeration temperature. Proteinase and phospholipase activities resulting from these yeasts were also monitored at different temperatures. Five genera of yeasts (Aureobasidium sp., Candida spp., Geotrichum spp., Trichosporon spp. and Rhodotorula spp.) isolated from bovine raw milk samples were evaluated. All strains showed one or a combination of characteristics: growth at 37°C (99·09% of the strains), psychrotrophic behaviour (50·9%), proteinase production (16·81% of the strains at 37°C and 4·09% under refrigeration) and phospholipase production (36·36% of the isolates at 37°C and 10·9% under refrigeration), and all these factors may compromise the quality of the product. Proteinase production was similar for strains incubated at 37°C (16·81% of the isolates) and room temperature (17·27%) but there was less amount of phospholipase-producing strains at room temperature (15·45% of the isolates were positive) when compared with incubation at 37°C (36·36%). Enzymes production at 37°C by yeasts isolated from milk confirmed their pathogenic potential. The refrigeration temperature was found to be most efficient to inhibit enzymes production and consequently ensure better quality of milk. The viability of yeasts and the activity of their enzymes at different temperatures are worrying because this can compromise the quality of dairy products at all stages of production and/or storage, and represent a risk to the consumer.


Author(s):  
Alan S. Lima ◽  
Letícia de F. Ferreira ◽  
Diego P. Silva ◽  
Fernando R. Gomes ◽  
Stefanny C. M. Titon

2021 ◽  
Author(s):  
Luz M. Iribarne-Durán ◽  
Laura Serrano ◽  
Francisco M. Peinado ◽  
Manuela Peña-Caballero ◽  
Jose Antonio Hurtado ◽  
...  

2016 ◽  
Vol 24 (2) ◽  
pp. 139-144 ◽  
Author(s):  
Wanessa Debôrtoli de Miranda ◽  
Maria Cristina Passos ◽  
Maria Imaculada de Fátima Freitas ◽  
Palmira de Fátima Bonolo

Abstract Human milk banks (HMBs) have difficulty maintaining and increasing their stocks, and the number of women enrolling as members remains low. The present qualitative study, based on social representation theory, aimed to understand women’s representations of the milk donation experience. The data were collected through semi-structured interviews conducted in 2013. In total, 12 women aged 18 to 39 years old participated in the study. Most were primiparous, married or living with a partner, housewives, completed high school, and belonged to lower economic classes. Four categories emerged from the testimonies: human milk donation; representations about human milk banks (HMB); the importance of breastfeeding for the baby and for one's conceptualization as a mother; and prenatal care and donation awareness. The main reasons for donating were representations that value breastfeeding, human milk, and the donation act. These mothers had difficulties donating, but the rewarding feeling, the value of this practice, and the support they received from people important to them helped with the donation. The findings related to the value of the donation and breastfeeding provide ways to effectively encourage and motivate potential donors, achieving comprehensive care starting from the prenatal period.


2018 ◽  
Vol 94 (4) ◽  
pp. 399-403 ◽  
Author(s):  
Mayla S. Borges ◽  
Angela M. de M. Oliveira ◽  
Wallisen T. Hattori ◽  
Vânia O.S. Abdallah
Keyword(s):  

2020 ◽  
Vol 7 (37) ◽  
pp. 2005-2010
Author(s):  
Srenivas A ◽  
Kumaravel K. S. ◽  
Anurekha V ◽  
Prathibha K ◽  
Gobinathan S ◽  
...  

2020 ◽  
Vol 73 (suppl 6) ◽  
Author(s):  
Rosana Rodrigues Figueira Fogliano ◽  
Elena Bohomol ◽  
Mariana Cabral Schveitzer ◽  
Kelly Pereira Coca ◽  
Ana Cristina Freitas de Vilhena Abrão

ABSTRACT Objectives: to identify the main quality management interventions used by professionals working at Human Milk Banks. Methods: a scope review conducted at PubMed, VHL, Scopus, SciELO, CAPES thesis and Google Scholar databases. Primary studies were included that address quality improvement strategies to improve Milk Bank processes in Portuguese, English and Spanish. Results: search totaled 192 scientific studies, 17 of which met the objective of the study and inclusion criteria. The main quality management interventions used in the Human Milk Bank addressed tools for continuous improvement. Six were aimed at improving processes, one to prevent errors and failures and two to achieve continuous monitoring. Final Considerations: the tools used by professionals working in Human Milk Banks have demonstrated effectiveness in managing the quality of services.


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