A soy protein isolate (SPI):beeswax (BW) edible coating was optimized based on BW and l-cysteine (Cys)
content to reduce the enzymatic browning of fresh-cut artichoke. The effect of this optimized coating,
combined withdifferentmodifiedatmospheres (MA)to extendthe shelf-life of cut artichokes, was studied
during storage at 5 ◦C. MAs were obtained by fluxing two gas mixtures (MA-A: 5 kPa O2 + 15 kPa CO2; MAB:
80 kPa O2) or by conventional passive MA (MA-P). Atmospheric conditions were used as the control.
The use of 0.3 g/100 mL Cys combined with a SPI-BW edible coating (40 g/100 g BW, dry basis) helped
control enzymatic browning and extended the commercial shelf-life of fresh-cut artichokes to 4 days
without providing off-odors. The combination of the coating with MAs did not extend the shelf-life
of artichoke slices, but helped maintain the product’s antioxidant capacity as compared to the control
packaging conditions. Given the high degree of perishability of untreated fresh-cut artichoke, a 4-day
commercial period can be considered adequate to distribute sliced artichokes to local markets. However,
more studies are required to further extend shelf-life.
A soy protein isolate (SPI):beeswax (BW) edible coating was optimized based on BW and l-cysteine (Cys)content to reduce the enzymatic browning of fresh-cut artichoke. The effect of this optimized coating,combined withdifferentmodifiedatmospheres (MA)to extendthe shelf-life of cut artichokes, was studiedduring storage at 5 ◦C. MAs were obtained by fluxing two gas mixtures (MA-A: 5 kPa O2 + 15 kPa CO2; MAB:80 kPa O2) or by conventional passive MA (MA-P). Atmospheric conditions were used as the control.The use of 0.3 g/100 mL Cys combined with a SPI-BW edible coating (40 g/100 g BW, dry basis) helpedcontrol enzymatic browning and extended the commercial shelf-life of fresh-cut artichokes to 4 dayswithout providing off-odors. The combination of the coating with MAs did not extend the shelf-lifeof artichoke slices, but helped maintain the product’s antioxidant capacity as compared to the controlpackaging conditions. Given the high degree of perishability of untreated fresh-cut artichoke, a 4-daycommercial period can be considered adequate to distribute sliced artichokes to local markets. However,more studies are required to further extend shelf-life.
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