| Journal: | Brazilian archives of biology and technology |
| Database: | PERIÓDICA |
| System number: | 000362776 |
| ISSN: | 1516-8913 |
| Authors: | Gabriel, Luciana Sutil1 Prestes, Rosilene Aparecida2 Pinheiro, Luís Antonio1 Barison, Andersson3 Wosiacki, Gilvan1 |
| Institutions: | 1Universidade Estadual de Ponta Grossa, Ponta Grossa, Parana. Brasil 2Universidade Tecnologica Federal do Parana, Ponta Grossa, Parana. Brasil 3Universidade Federal do Parana, Curitiba, Parana. Brasil |
| Year: | 2013 |
| Season: | May-Jun |
| Volumen: | 56 |
| Number: | 3 |
| Pages: | 439-446 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Pomace, the main by-product of apple juice processing, contains all the fruit's compounds such as minerals, sugars, fibers, enzymes and secondary metabolites after bioprocessing. Dried pomace from four apple varieties (Gala, Fuji, Catarina and Joaquina) was used to extract fructose, glucose, and sucrose, the main soluble sugars contained in apple pomace, to verify the possible use of the sugar fractions. The concentrated sugars were characterized by NMR and FTIR. The partial least squares method (PLS) applied to the NMR and FTIR spectra revealed large amounts of fructose, glucose, and sucrose, without the presence of others compounds. Principal component analysis (PCA) discriminated the studied apple varieties, with a 99% level of significance, as function of the amount of each sugar in the respective extracts |
| Disciplines: | Química |
| Keyword: | Química de alimentos, Manzana, Pulpa de fruta, Contenido de azúcares, Análisis multivariado, Resonancia magnética nuclear |
| Keyword: | Chemistry, Food chemistry, Apple, Fruit pulp, Sugar content, Multivariate analysis, Nuclear magnetic resonance |
| Full text: | Texto completo (Ver HTML) |
