Enzyme activities and pectin breakdown of sapodilla submitted to 1-methylcyclopropene.

dc.contributorEmbrapa Agroindústria Tropical
dc.creatorMORAIS, P.L.D. de
dc.creatorLIMA, L.C.
dc.date2008
dc.date2008-03-26
dc.date.accessioned2017-03-06T19:27:21Z
dc.date.available2017-03-06T19:27:21Z
dc.identifier41978
dc.identifierhttp://www.alice.cnptia.embrapa.br/handle/doc/123164
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/265987
dc.descriptionThe objective of this work was to investigate the influence of 1-methylcyclopropene (1-MCP) at 300 nL L-1 on activities of cell wall hidrolytic enzymes and pectin breakdown changes which Sapodilla (Manilkara zapota cv. Itapirema 31) cell wall undergoes during ripening. Sapodilla were treated with ethylene antagonist 1-MCP at 300 nL L-1 for 12 hours and then, stored under a modified atmosphere at 25ºC for 23 days. Firmness, total and soluble pectin and cell wall enzymes were monitored during storage. 1-MCP at 300 nL L-1 for 12 hours delayed significantly softening of sapodilla for 11 days at 25ºC. 1-MCP postharvest treatment affected the activities of cell wall degrading enzymes pectinmethylesterase and polygalacturonase and completely suppressed increases in beta-galactosidase for 8 days, resulting in less pectin solubilization. Beta-galactosidase seems relevant to softening of sapodilla and is probably responsible for modification of both pectin and xyloglucan-cellulose microfibril network.
dc.description2008
dc.languageen
dc.publisherPesquisa Agropecuária Brasileira, Brasília, DF, v.43, n.1, p.15-20, jan. 2008.
dc.relationÁrea de Informação da Sede - Artigo em periódico indexado (ALICE)
dc.subjectManilkara zapota
dc.subjectbeta-galactosidase
dc.subjectripening
dc.subjectbeta-galactosidase
dc.subjectamadurecimento
dc.titleEnzyme activities and pectin breakdown of sapodilla submitted to 1-methylcyclopropene.
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución