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Tolerance of Coffea arabica L. seeds to sub zero temperatures. Repositório Alice
COELHO, S. V. B.; ROSA, S. D. V. F. da; CLEMENTE, A. da C. S.; PEREIRA, C. C.; FIGUEIREDO, M. A. de; REIS, L. V..
Preservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of...
Tipo: Artigo de periódico Palavras-chave: Saturated saline solutions; Antioxidant enzymes; Solução salina saturada; Enzima antioxidante; Secagem; Congelamento; Drying; Silica gel; Freezing.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1082056
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Tolerance of Coffea arabica L. seeds to sub zero temperatures Ciência e Agrotecnologia
Coelho,Stefania Vilas Boas; Rosa,Sttela Dellyzete Veiga Franco da; Clemente,Aline da Consolação Sampaio; Pereira,Cristiane Carvalho; Figueiredo,Madeleine Alves de; Reis,Leandro Vilela.
ABSTRACT Preservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drying; Silica gel; Saturated saline solutions; Freezing; Antioxidant enzymes..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300312
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