Physiology and quality of 'Tahiti' acid lime coated with nanocellulose-based nanocomposites
O objetivo deste estudo foi avaliar
a resposta fisiológica e a qualidade da lima
ácida Tahiti revestida com nanocompósitos
de carboximetilcelulose (N-CMC), pectina
(N-PEC) e amido (N-ST) à base de nanocristais
de celulose. A taxa respiratória, produção
de etileno, perda de massa fresca, clorofila
total e firmeza dos frutos foram avaliadas
durante 9 dias de armazenamento. No final
do armazenamento, os frutos revestidos com
N-CMC e N-PEC apresentaram valores de
etileno significativamente menores (0,92 e
0,98 μg C2H4 kg-1 h-1, respectivamente) que os
frutos revestidos com CMC e PEC (1,6 e 2,02
μg C2H4 kg-1 h-1, respectivamente). No 3º dia
de armazenamento, os frutos revestidos com
N-PEC apresentaram taxa respiratória (12,01
mg CO2 kg-1 h-1) semelhante aos frutos controle
(13,52 mg CO2 kg-1 h-1), mas significativamente
menor que os frutos revestidos com PEC
(14,93 mg CO2 kg-1 h-1). Frutos revestidos
com N-PEC apresentaram perdas de massa
fresca significativamente menores que os
frutos controle. Frutos revestidos com N-PEC
apresentaram níveis de retenção de clorofila
(18,95 mg g-1) superiores aos frutos com PEC
(13,25 mg g-1). Este trabalho mostrou que o
nanocompósito N-PEC, à base de NC, foi o
revestimento que apresentou maior potencial
para preservar a qualidade da lima ácida ‘Tahiti’.
Physiology and quality of 'Tahiti' acid lime coated with nanocellulose-based nanocomposites
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DOI: 10.22533/at.ed.87619260422
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Palavras-chave: respiração, etileno, perda de massa fresca, clorofila, firmeza.
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Keywords: respiration, ethylene, fresh weight loss, chlorophyll, firmness.
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Abstract:
The aim of this study was to
evaluate the physiological response and
quality of the Tahiti acid lime coated with
carboxymethylcellulose (N-CMC), pectin
(N-PEC) and starch (N-ST) nanocomposites
based on cellulose nanocrystals. Respiratory
rate, ethylene production, loss of fresh weight,
total chlorophyll and fruit firmness were evaluated
during 9 days of storage. At the end of storage,
only fruits coated with N-CMC and N-PEC
exhibited significantly lower ethylene yield (0.92
and 0.98 μg C2H4 kg-1 h-1, respectively) than
A produção do Conhecimento nas Ciências Agrárias e Ambientais 4 Capítulo 22 248
fruits coated with CMC and PEC (1.6 and 2.02 μg C2H4 kg-1 h-1, respectively). On the
3rd day of storage, fruits coated with N-PEC showed a respiratory rate (12.01 mg CO2
kg-1 h-1) similar to the fruits of the control (13.52 mg CO2 kg-1 h-1), but it was significantly
lower than the fruits coated with PEC (14.93 mg CO2 kg-1 h-1). Only fruits coated with
N-PEC showed significantly lower fresh weight losses than the control fruits. Fruits
coated with N-PEC had chlorophyll retention levels (18.95 mg g-1) higher than fruits
with PEC (13.25 mg g-1). This work showed that the N-PEC nanocomposite, based on
NC, was the coating that showed greater potential for preserving quality of the ‘Tahiti’
acid lime.
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Número de páginas: 15
- Alice Jacobus de Moraes
- Daiane Luckmann Balbinotti de França
- Wilson Pires Flauzino Neto
- Gilberto Costa Braga
- Jessica Cristina Urbanski Laureth
