dc.contributor.author | Carabez-Trejo, A | |
dc.contributor.author | Guevara-Lara, F | |
dc.contributor.author | Carrillo-López, A | |
dc.contributor.author | Cruz-Hernández, A | |
dc.contributor.author | Paredes-López, O | |
dc.date.accessioned | 2011-01-22T10:28:06Z | |
dc.date.available | 2011-01-22T10:28:06Z | |
dc.date.issued | 2002 | |
dc.identifier.issn | 0021-8561 | |
dc.identifier.uri | http://hdl.handle.net/11154/1908 | |
dc.description.abstract | The activity of four cell wall hydrolases, pectinmethylesterase (PME), polygalacturonase (PG), cellulase, and beta-galactosidase (beta-Gal), was measured in fruit skins of two prickly pear varieties, Naranjona and Charola, during storage at 18 degreesC and 85-95% relative humidity (RH). In Naranjona (Opuntia ficus indica), of short postharvest life (ca. 2 weeks), PG, cellulase, and beta-Gal increased their activity more than twice, whereas PME activity tended to increase only slightly during storage. In Charola (Opuntia sp.), of long postharvest life (ca. 2 months), only P-Gal increased its activity (77%), showing a high PG activity from the beginning of storage. Transmission electron microscopy observations showed middle lamella dissolution at the end of storage for both varieties. Naranjona showed a higher cell wall enzymatic activity than Charola, in agreement with their storability differences. Our results suggest that PG and cellulase in Naranjona and PG and beta-Gal in Charola are the main enzymes responsible for cell wall hydrolytic and ultrastructural changes in skins of stored prickly pears. | en_US |
dc.language.iso | en | en_US |
dc.title | Hydrolytic activity and ultrastructural changes in fruit skins from two prickly pear (Opuntia sp.) varieties during storage | en_US |
dc.type | Article | en_US |
dc.identifier.idprometeo | 2234 | |
dc.identifier.doi | 10.1021/jf011195c | |
dc.source.novolpages | 50(6):1681-1685 | |
dc.subject.wos | Agriculture, Multidisciplinary | |
dc.subject.wos | Chemistry, Applied | |
dc.subject.wos | Food Science & Technology | |
dc.description.index | WoS: SCI, SSCI o AHCI | |
dc.subject.keywords | Opuntia sp. | |
dc.subject.keywords | cell wall | |
dc.subject.keywords | polygalacturonase | |
dc.subject.keywords | pectinmethylesterase | |
dc.subject.keywords | cellulase | |
dc.subject.keywords | beta-galactosidase | |
dc.subject.keywords | nonclimacteric | |
dc.relation.journal | Journal of Agricultural and Food Chemistry |
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