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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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| CAMATARI,Fabiana Oliveira dos Santos; SANTANA,Luciana Cristina Lins de Aquino; CARNELOSSI,Marcelo Augusto Gutierrez; ALEXANDRE,Allana Patrícia Santos; NUNES,Maria Lucia; GOULART,Marília Oliveira Fonseca; NARAIN,Narendra; SILVA,Maria Aparecida Azevedo Pereira da. |
| Abstract The mango has short postharvest shelf life which varies from 6 to 10 days at room temperature in its fresh form. The objective of this study was to evaluate the effect of usage of edible coatings based of cassava starch and chitosan on post-harvest shelf life of mango. Mangoes of Tommy Atkins variety were covered with nine different formulations of coatings in a factorial block experimental design. The fruits were stored at 25 °C and evaluated during storage for the weight loss (%), color parameters, sensory attributes evaluated by trained panel, the rate of CO2 production and microbiological contamination on the peels. Results analysed by linear regressions and ANOVA, demonstrated that chitosan showed significant effect on weight loss (%) and on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mangifera indica; Edible coatings; Modified atmosphere; Chitosan; Cassava starch; Physico-chemical characteristics. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500086 |
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