Physico-chemical, morphological, and pasting properties of Pine nut (Araucaria angustifolia) starch oxidized with different levels of sodium hypochlorite
The objective of this work was to study the effect of process temperature and active chlorine concentration on the main properties of Pine nut starch (PN). Samples of PN were oxidized with sodium hypochlorite at concentrations varying from 0.5 to 4.0 g active chlorine/100 g starch, at temperatures v...
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Published in | Die Stärke Vol. 63; no. 4; pp. 198 - 208 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
Wiley-VCH Verlag
01.04.2011
WILEY-VCH Verlag WILEY‐VCH Verlag Wiley |
Subjects | |
Online Access | Get full text |
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Summary: | The objective of this work was to study the effect of process temperature and active chlorine concentration on the main properties of Pine nut starch (PN). Samples of PN were oxidized with sodium hypochlorite at concentrations varying from 0.5 to 4.0 g active chlorine/100 g starch, at temperatures varying from 20 to 45°C according to a central composite rotational design, analyzing the results using response surface methodology. The concentration of active chlorine had an effect on the WSI, the quantity of carboxyl and carbonyl groups, the AM content and the percentage of light transmittance (650 nm) of the PN. The effect of temperature was observed on the water solubility index, the quantity of carbonyl groups and the percentage of light transmittance (650 nm) of the PN. Oxidation was more intense in the starch treated with 3.5% active chlorine. |
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Bibliography: | http://dx.doi.org/10.1002/star.201000133 ArticleID:STAR201000133 ark:/67375/WNG-VN0N6S1L-W istex:ADFDBB87A9C65A416AB591B2BFA460D8A9BDF015 |
ISSN: | 0038-9056 1521-379X |
DOI: | 10.1002/star.201000133 |