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| Oliveira,Cristina Soltovski de; Bisinella,Radla Zabian Bassetto; Bet,Camila Delinski; Beninca,Cleoci; Demiate,Ivo Mottin; Schnitzler,Egon. |
| Abstract Ginger and white yam starches were investigated and compared with maize starch. Proximal composition, thermogravimetry, differential scanning calorimetry, microscopy, colourimetry, X-ray powder diffractometry and pasting profile were analysed. The unconventional starches presented higher protein and ash contents than the maize starch, that had the highest thermal stability. Higher gelatinisation temperatures were reported for ginger starch, and the enthalpy of the unconventional starches were similar. The maize starch presented the lowest gelatinisation values. For the corn starch the granules were polygonal and smaller than the unconventional starches, and oval shapes and larger diameters were found for the ginger and yam starches. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Native starch; Gelatinization; Thermal analysis; Pasting profile. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100516 |
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| Melo Neto,Biano A. de; Bonomo,Renata C. F.; Franco,Marcelo; Almeida,Paulo F. de; Pontes,Karen V.. |
| ABSTRACT The objective was to study the starch extraction process of the peach palm (Bactris gasipaes Kunth.) fruit focused on increasing yield and in preserving the quality characteristics the extracted product. Two experimental designs are carried out in order to investigate the effects of NaOH and NaHSO3 concentrations, as well as the decantation time, on the yield of starch and on product color. Firstly, a 23 full factorial design provided a linear model with 95% of confidence, indicating major tendencies for optimization. Secondly, a 22 central composite design rendered a quadratic model which allowed the maximization of yield (it 9.0% higher) without compromising the color of the product. The maximum yield of 23.90%, validated with triplicate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Design of experiments; Response surface methodology; Native starch. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000100148 |
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