Hygroscopic behavior of lyophilized acerola pulp powder
ABSTRACT Powder products are characterized by their practicality and long life. However, fruit powders have high hygroscopicity and tend to agglomerate due to its hydrophilic nature. The isotherms of equilibrium moisture content apply to the study of dehydrated food preservation potential. Acerola i...
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Universidade Federal de Campina Grande
2016-03-01
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| author | Luciana C. Ribeiro José M. C. da Costa Marcos R. A. Afonso |
| author_facet | Luciana C. Ribeiro José M. C. da Costa Marcos R. A. Afonso |
| author_sort | Luciana C. Ribeiro |
| collection | DOAJ |
| description | ABSTRACT Powder products are characterized by their practicality and long life. However, fruit powders have high hygroscopicity and tend to agglomerate due to its hydrophilic nature. The isotherms of equilibrium moisture content apply to the study of dehydrated food preservation potential. Acerola is a nutritionally rich fruit, with great economic and industrial potential. The objective of this study was to analyse acerola powder adsorption isotherms obtained by lyophilization and characterize the powder obtained from lyophilized acerola pulp. Analysis of hygroscopicity, solubility and degree of caking were performed. Isotherms were represented by the mathematical models of GAB, BET, Henderson and Oswin, at temperatures of 25, 35 and 45 °C. According to the results, the obtained powder showed hygroscopicity of 5.96 g of absorbed water 100g-1 of solids, solubility of 95.08% and caking of 14.12%. The BET model showed the best fit to the adsorption isotherms of the acerola pulp powder obtained by lyophilization. The obtained isotherm was of type III, with a "J" shape. There was an inversion of the effect of temperature on the isotherms of acerola powders. |
| format | Article |
| id | doaj-art-0eacff5fb4ca4811a2dcc74b18a8d398 |
| institution | OA Journals |
| issn | 1807-1929 |
| language | English |
| publishDate | 2016-03-01 |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-0eacff5fb4ca4811a2dcc74b18a8d3982025-08-20T01:59:13ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292016-03-0120326927410.1590/1807-1929/agriambi.v20n3p269-274S1415-43662016000300269Hygroscopic behavior of lyophilized acerola pulp powderLuciana C. RibeiroJosé M. C. da CostaMarcos R. A. AfonsoABSTRACT Powder products are characterized by their practicality and long life. However, fruit powders have high hygroscopicity and tend to agglomerate due to its hydrophilic nature. The isotherms of equilibrium moisture content apply to the study of dehydrated food preservation potential. Acerola is a nutritionally rich fruit, with great economic and industrial potential. The objective of this study was to analyse acerola powder adsorption isotherms obtained by lyophilization and characterize the powder obtained from lyophilized acerola pulp. Analysis of hygroscopicity, solubility and degree of caking were performed. Isotherms were represented by the mathematical models of GAB, BET, Henderson and Oswin, at temperatures of 25, 35 and 45 °C. According to the results, the obtained powder showed hygroscopicity of 5.96 g of absorbed water 100g-1 of solids, solubility of 95.08% and caking of 14.12%. The BET model showed the best fit to the adsorption isotherms of the acerola pulp powder obtained by lyophilization. The obtained isotherm was of type III, with a "J" shape. There was an inversion of the effect of temperature on the isotherms of acerola powders.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000300269&lng=en&tlng=enMalpighia glabrahigroscopicidadesecagem |
| spellingShingle | Luciana C. Ribeiro José M. C. da Costa Marcos R. A. Afonso Hygroscopic behavior of lyophilized acerola pulp powder Revista Brasileira de Engenharia Agrícola e Ambiental Malpighia glabra higroscopicidade secagem |
| title | Hygroscopic behavior of lyophilized acerola pulp powder |
| title_full | Hygroscopic behavior of lyophilized acerola pulp powder |
| title_fullStr | Hygroscopic behavior of lyophilized acerola pulp powder |
| title_full_unstemmed | Hygroscopic behavior of lyophilized acerola pulp powder |
| title_short | Hygroscopic behavior of lyophilized acerola pulp powder |
| title_sort | hygroscopic behavior of lyophilized acerola pulp powder |
| topic | Malpighia glabra higroscopicidade secagem |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000300269&lng=en&tlng=en |
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