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Influência do estádio de maturação e do cultivo na composição de voláteis do maracujá (Passiflora edulis Sims f. flavicarpa Deg)

Authors: Macoris, Mariana Serrão;

Influência do estádio de maturação e do cultivo na composição de voláteis do maracujá (Passiflora edulis Sims f. flavicarpa Deg)

Abstract

Volatile compounds play a fundamental role in the aroma and flavor of fruits. Esters, terpenes and aldehydes are the volatile compounds with the major contribution to the flavor of the passion fruit, contributing to the sweet, frutal, floral and green characteristic flavor of the passion fruit. The content of antioxidant compounds in fruits is strongly affected by genetic factors, edaphoclimatic conditions, ripening stage and cultivation system. The aim of this work was to obtain information about the steps of the study of volatile compounds in fruits and to do a review of the volatile compounds ahead identified in passion fruit, to support the experimental research; determine the influence of the system cultivation and ripening stage on the total phenolic content (TPC) and antioxidant activity (AAT) of the passion fruit pulp; evaluate the sensory acceptance of the juice prepared using organic and conventional pulp and the physicochemical characteristics of the pulp during ripening, and evaluate the odoriferous contribution of the volatile compounds of organic and conventional passion fruit pulp from the stages of ripening of the color of the peel 1/3 yellow, 2/3 yellow and 3/3 yellow to the global aroma of the fruit. The effect of the ripening stage and cultivation system on the total phenolic content (TPC) and total antioxidant activity (AAT) of passion fruit pulp were evaluated during the passion fruit ripening. TPC extraction from the passion fruit pulp was optimized using a central composite factorial design (23), which variables were sample volume, proportion of methanol in the extraction solution and extraction solution volume. TPC was determined by Folin-Ciocauteu method and AAT using the discoloration reaction of ABTS. The physicochemical studied parameters were soluble solids, titratable acidity, pH, ratio, reducing and total sugars, and ascorbic acid. The acceptance panel was... (Complete abstract click electronic access below)

Os compostos voláteis desempenham papel fundamental para o aroma e o sabor das frutas. Os principais compostos responsáveis pelo aroma do maracujá são da classe dos ésteres, terpenos e aldeídos, que contribuem para o aroma doce, frutal, floral e verde da fruta. A concentração dos compostos antioxidantes nas frutas depende sobremaneira de fatores genéticos, condições edafoclimáticas, estádio de maturação e tipo de cultivo. Os objetivos deste trabalho foram obter informações a respeito das etapas que envolvem o estudo da composição de voláteis das frutas e realizar o levantamento dos compostos voláteis do maracujá já identificados visando dar suporte ao trabalho experimental; determinar a influência do tipo de cultivo e do estádio de maturação no conteúdo de compostos fenólicos totais (TPC) e na atividade antioxidante total (AAT) da polpa de maracujá; avaliar a aceitação sensorial do suco preparado com polpa de maracujá obtido por cultivo orgânico e convencional e as características físico-químicas da polpa ao longo da maturação; determinar a composição de voláteis da polpa de maracujá orgânico e convencional, avaliando suas alterações ao longo da maturação; e avaliar a importância odorífera dos compostos voláteis da polpa de maracujá orgânico e convencional dos estádios de maturação correspondentes à cor de casca 1/3, 2/3 e 3/3 amarela para o aroma global da fruta. A influência do estádio de maturação e do cultivo no teor de compostos fenólicos totais (TPC) e na atividade antioxidante total (AAT) da polpa maracujá orgânico e convencional foi avaliada durante a maturação da fruta, sendo a extração de TPC otimizada usando delineamento fatorial composto central (23), cujas variáveis foram volume de amostra, volume de metanol na solução extratora e volume de solução extratora. TPC foi determinado empregando o método...

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pós-graduação em Alimentos e Nutrição - FCFAR

Country
Brazil
Keywords

Maracujá orgânico - Composição de voláteis, Maracuja, Organic passion

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green