Navegando por Assunto "Manihot esculenta Crantz"

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Acesso aberto (Open Access)
Physicochemical properties of three sugary cassava landraces
(2013-05) SOUZA, Hugo Antonio Lima de; BENTES, Ádria de Sousa; LADEIRA, Taiana Marina Souza; LOPES, Alessandra Santos; PENA, Rosinelson da Silva
This study evaluates the physical and physicochemical properties of three sugary cassava (Manihot esculenta Crantz) landraces: São Francisco Bag 3, Manicueira 62, and Castanhal Iracema. These three landraces showed high estimated productivity (≥3.93kg plant-1) and had a high sugar content (≥3.92g 100g-1 of root), making them viable for use in syrup production, especially the São Francisco Bag 3 landrace (4.76g 100g-1). The Manicueira 62 landrace had the highest starch content (4.40g 100g-1). The three sugary cassava landraces exhibited high levels of cyanide (>195mg kg-1), indicating the need for processing prior to consumption.
Acesso aberto (Open Access)
Quantificação de cianeto total nas etapas de processamento das farinhas de mandioca dos grupos seca e d'água
(Instituto Nacional de Pesquisas da Amazônia, 2010-03) CHISTÉ, Renan Campos; COHEN, Kelly de Oliveira; MATHIAS, Erla de Assunção; OLIVEIRA, Suzy Sarzi
The aim of this work was to quantify the total cyanide concentration during the production stages of cassava flour from dry and water groups. In relation to dry flour, the total cyanide concentration in the cassava root reduced from 160±11.8 mg HCN/kg to 149±12.3 mg HCN/kg after grinding, 68±2.5mg HCN/kg after pressing and 5±0.2 mg HCN/kg was obtained in the final product after the roasting process. For the water flour production, the cassava root showed 321±21.6 mg HCN/kg total cyanide content, and during the fermentation process, the total cyanide content for the first 24-hour fermentation was from 297±2.7 mg HCN/kg reaching 64±2.3 mg HCN/kg after resting in a pool for 96 hours. After grinding and pressing the fermented roots, the values lowered to 50±0.6 and 36±0.4 mg HCN/kg, respectively. A concentration of 9±0.1 mg HCN/kg was obtained in the final product, evidencing the detoxification process efficiency in both processings.