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| GALVAO,Mercia de Sousa; NUNES,Maria Lúcia; CONSTANT,Patricia Beltrão Lessa; NARAIN,Narendra. |
| Abstract The objective of this paper was to determine the volatile profile of four cultivars - Barker, Collinson, Fortuna and Geada of avocado (Persea americana, Mill.) fruit and to perform a detailed study on the effect of volatiles extraction conditions. The best conditions for extraction for Collinson and Fortuna cultivars were by using a mixture of pentane and ethyl ether (2:1) as solvent for 80 min, while for Barker and Geada cultivars, the solvents were hexane and pentane-ether (2:1), respectively but for a shorter extraction period of 60 min. A total number of 158 compounds were separated in all 4 avocado cultivars, among them eighty-four volatile compounds were identified. The principal volatile compounds viz. hexanal, ethyl acetate, methyl... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avocado; Aroma; Quality; Pulp; GC-MS. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000300439 |
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| TURAZZI,Francielle Crocetta; MORÉS,Lucas; MERIB,Josias; CARASEK,Eduardo; NARAIN,Narendra; LIMA,Lucélia Kátia de; NUNES,Maria Lúcia. |
| Abstract This paper describes the application of the solid-phase microextraction (SPME) technique for the determination and monitoring of the volatile profile of minimally-processed pineapple fruit stored at various temperatures (-12 °C, 4 °C and 25 °C) for different periods (1, 4 and 10 days). The SPME fiber coating composed of Car/PDMS presented the best performance. The optimal extraction conditions obtained through a Doehlert design were 60 min at 35 °C. The profiles for the volatile compounds content of the fruit at each stage of storage were determined by gas chromatography-mass spectrometry (GC-MS). The variation in the volatile profile over time was greater when the fruit samples were stored at 25 °C and at -12 °C compared to 4 °C. Thus, according... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Volatile profile; Pineapple; Minimally processed; Microextraction; Gas chromatography. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000400663 |
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