RESUMO
Roots, tubers and bananas (RTBs) contribute immensely to food security and livelihoods in sub-Saharan Africa, Asia and Latin America. The adoption of RTB genotypes in these regions relies on the interplay among agronomic traits, ease of processing and consumer preference. In breeding RTBs, until recently little attention was accorded key textural traits preferred by consumers. Moreover, a lack of standard, discriminant, repeatable protocols that can be used to measure the textural traits deter linkages between breeding better RTB genotypes and end user/consumer preferences. RTB products texture - that is, behaviour of RTB food products under unique deformations, such as disintegration and the flow of a food under force - is a critical component of these preferences. The preferences consumers have for certain product texture can be evaluated from expert sensory panel and consumer surveys, which are useful tools in setting thresholds for textural traits, and inform breeders on what to improve in the quality of RTBs. Textural characterization of RTBs under standard operating procedures (SOPs) is important in ensuring the standardization of texture measurement conditions, predictability of textural quality of RTBs, and ultimately definition of RTB food product profiles. This paper reviews current SOPs for the textural characterization of RTBs, including their various associated methods, parameters, challenges and merits. Case studies of texture characterized during development of SOPs and evaluation of texture of RTB populations are discussed, together with insights into key textural attributes and correlations between instrumental, sensory and consumer assessment of texture unique to various RTB food products. Hardness was considered a universal key textural attribute to discriminate RTBs. The review should provide adequate insight into texture of RTB food products and critical factors in their measurement. It aims to promote inclusion of texture in breeding pipelines by investigating which textural traits are prioritized by consumers, particularly since the inclusion of textural traits has recently gained prominence by breeders in improving RTBs. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
RESUMO
Introduction: Right ventricular dysfunction is a cause of morbidity and mortality after surgical correction of tetralogy of Fallot. The transatrial-transpulmonary approach allows preservation of right ventricular function. Aim: To report the immediate and long-term results of surgical treatment of tetralogy of Fallot using the transatrial-transpulmonary approach. Material and methods: This is a retrospective study including cases of tetralogy of Fallot operated on by the transatrial-transpulmonary approach between April 2009 and October 2010 in our institution. Results: There were 19 patients including 10 girls and 9 boys with a mean age of 7.4 years (extremes: 3 and 19 years). All our patients benefited from closure of the ventricular septal defect by a right atrial approach and enlargement of the pulmonary pathway. In the immediate postoperative period, the pressure gradient between the pulmonary artery and the right ventricle was 18.77 mm Hg. We had 2 deaths (10.5%). Complications were dominated by conduction disorders (100%) such as right bundle branch block and pleuropulmonary complications (41.20%). After a mean follow-up of 11.43 ±0.81 years, no patient died and all were asymptomatic, without significant residual lesion. Conclusions: Complete cure of tetralogy of Fallot by the transatrial-transpulmonary route is associated with low morbidity and mortality in our experience. The long-term results are satisfactory.