| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Extraction model of low methoxyl pectin from apple pomace effects of acid concentration and time on the process and the product
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| Autores: |
Fertonani,Heloísa Cristina Ramos
Scabio,Ardalla
Carneiro,Eliana Beleski Borba
Schemim,Maria Helene Canteri
Nogueira,Alessandro
Wosiacki,Gilvan
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| Data: |
2009-02-01
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| Ano: |
2009
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| Palavras-chave: |
Apple
Pectin
Extraction
LMP
Nitric acid
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| Resumo: |
In Brazil, one of the top apple producing countries in the world, apple processing is an increasing activity, with pomace as the main by-product. To extract pectin from pomace, factors affecting process and product should be studied for optimization. A model to produce LMP directly from dried apple pomace was established observing the effects of HNO3 concentration and the time of reaction at 97ºC, analyzed from a statistical and practical point of view. The model for gravimetric yield (R² =0.9834) predicts the highest value of 20.07 g/100 g (126 mM; 14.07 min) of a pectin with a degree of esterification of 48.49%. The model for degree of esterification of extracted pectin (R²= 0.9797) predicts the lowest value of 43.73% (200 mM; 10.07 min) with a yield of 16.77g/100 g. The results using the central coordinates (100 mM; 10 min) for gravimetric yield were 19.01 g/100 g and for the degree of esterification, 50.79%.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100023
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132009000100023
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.52 n.1 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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