Data/hora: 19/06/2024 09:30:55

Biblioteca(s): 	Embrapa Uva e Vinho.	
Data corrente: 	05/09/2022	
Data da última atualização: 	05/09/2022	
Autoria: 	DAMBROS, J. I.; STORCH, T. T.; PEGORARO, C.; CRIZEL, G. R.; GONÇALVES, B. X.; QUECINI, V.; FIALHO, F. B.; ROMBALDI, C. V.; GIRARDI, C. L.	
Afiliação: 	JULIELE ILONE DAMBROS, CNPUV; TATIANE TIMM STORCH, INSTITUTO FEDERAL DE EDUCAÇÃO CIÊNCIA E TECNOLOGIA; CAMILA PEGORARO, UNIVERSIDADE FEDERAL DE PELOTAS; GISELI RODRIGUES CRIZEL, UNIVERSIDADE FEDERAL DE PELOTAS; BRENO XAVIER GONÇALVES, UNIVERSIDADE FEDERAL DE PELOTAS; VERA MARIA QUECINI, CNPUV; FLAVIO BELLO FIALHO, CNPUV; CESAR VALMOR ROMBALDI, UNIVERSIDADE FEDERAL DE PELOTAS; CESAR LUIS GIRARDI, CNPUV.	
Título: 	Physicochemical properties and transcriptional changes underlying the quality of 'Gala' apples (Malus × domestica Borkh.) under atmosphere manipulation in long-term storage.	
Ano de publicação: 	2022	
Fonte/Imprenta: 	Journal of the Science of Food and Agriculture, online Aug. 2022.	
DOI: 	10.1002/jsfa.12169	
Idioma: 	Português	
Conteúdo: 	BACKGROUND: The year-round availability of apples (Malus × domestica Borkh.) depends on post-harvest technologies, which are essential for the retention of fruit sensory and chemical properties by delaying senescence. The effectiveness of strategies for preserving the quality of apples depends on complex interactions between the storage environment and endogenous biological factors. In the current work, we integrated instrumental, sensory, and transcriptional data to determine the role of conservation technologies cold storage, controlled atmosphere, and 1-methylcyclopropene-mediated ethylene blockage on the long-term conservation of apples. RESULTS: The results demonstrated that inhibition of the consumer's perception of the apples? ethylene content is essential for long-term cold storage, and such quality conservation can be achieved by reducing oxygen pressure. Overall appreciation of apples after storage was determined mainly by their texture, with crispness and juiciness contributing favorably, and mealiness contributing negatively. Reduced oxygen pressure and inhibition of ethylene perception exerted distinct effects on the transcription of candidate genes associated with ripening in apple. Hexose and cell-wall carbohydrate metabolism genes exhibit distinct expression patterns under storage. CONCLUSION: Inhibition of ethylene perception and reduction of relative oxygen pressure under cold storage both promote similar conservation of apple sensory traits under long-term cold storage. Texture was the main contributor to global appreciation of apples subjected to long-term storage. The conditions that were investigated were able to delay, but not fully prevent, senescence, as evidenced by physicochemical and gene expression analyses. The expression of gene-encoding enzymes involved in hexose metabolism was mainly developmentally regulated, whereas storage conditions exerted a stronger effect on the expression of genes associated with cell-wall metabolism.	
Palavras-Chave: 	Controlled atmosphere.	
Thesaurus Nal: 	1-methylcyclopropene; Controlled atmosphere storage; Fruit quality; Gene expression; Multivariate analysis.	
Categoria do assunto: 	G Melhoramento Genético	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146139/1/JSciFoodAgric-2022-Dambros.pdf	
Registro original: 	Embrapa Uva e Vinho (CNPUV)	
Exemplares: 	CNPUV - (19015-1) - UPC - AP - DD -  -  -  - DIS