Browning inhibition and quality preservation of fresh-cut romaine lettuce exposed to high intensity light

Zhan, Leilei; Liu, Yu; Hu, Jinqiang; Pang, Lingyun; Huang, Fan

doi:10.1016/j.ifset.2012.02.004

Cited by 121 publications

(86 citation statements)

References 36 publications

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“…APX activity was estimated by following the protocol of Nakano and Asada (1981). PAL activity was determined according to the method outlined by Zhan et al (2012). The total protein content of the samples was determined by the Bradford's method (Bradford, 1976).…”

Section: Methodsmentioning

confidence: 99%

Blue LED light enhances growth, phytochemical contents, and antioxidant enzyme activities of Rehmannia glutinosa cultured in vitro

Manivannan

Soundararajan

Halimah

et al. 2015

Hortic. Environ. Biotechnol.

224

105

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The objective of the current study is to determine the effect of light quality on enhancement of growth, phytochemicals, antioxidant potential, and antioxidant enzyme activities at in vitro cultures of Rehmannia glutinosa Libosch. In vitro-grown shoot tip explants were cultured on the plant growth regulator (PGR)-free Murashige and Skoog (MS) medium and cultured under a conventional cool white fluorescent light (control), blue light emitting diode (LED) light or red LED light. After four weeks, the growth traits along with total phenol content, total flavonoid content, free radical scavenging activities, and antioxidant enzyme activities were measured. Interestingly, the blue or red LED treatments showed a significant increase in growth parameters compared with the cool white florescent light. In addition, the LED treatments increased the total phenol and flavonoid levels in leaf and root extracts. Furthermore, data on the total antioxidant capacity, reducing power potential, and DPPH radical scavenging capacity also revealed the enhancement of antioxidant capacity under both blue and red LED treatments. Especially, the blue LED treatment significantly increased the antioxidant enzyme activities in both the leaf and root, followed by the red LED treatment. Modulation in the spectral quality particularly by the blue LED induced the antioxidant defense line and was directly correlated with the enhancement of phytochemicals. Therefore, the incorporation of blue or red LED light sources during in vitro propagation of R. glutinosa can be a beneficial way to increase the medicinal values of the plant.Additional key words: antioxidant potential, light emitting diodes, metabolite enhancement, secondary metabolites Hort.

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Section: Methodsmentioning

confidence: 99%

Blue LED light enhances growth, phytochemical contents, and antioxidant enzyme activities of Rehmannia glutinosa cultured in vitro

Manivannan

Soundararajan

Halimah

et al. 2015

Hortic. Environ. Biotechnol.

224

105

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“…In both groups, a mass loss was observed, probably resulting from respiration and transpiration processes. During respiration, there is a release of water and carbon dioxide by oxidation of carbohydrates, resulting in the mass loss of mangoes (Zhan et al 2012). This mass loss occurs mainly due to water loss since the other components that can be lost (e.g., aromas, flavors and gaseous products of respiration) are practically undetectable in terms of mass loss ).…”

Section: Mass Lossmentioning

confidence: 99%

Effect of an Edible Nanomultilayer Coating by Electrostatic Self-Assembly on the Shelf Life of Fresh-Cut Mangoes

Souza

Vaz

Cerqueira

et al. 2014

Food Bioprocess Technol

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This work aims at evaluating the effect of an alginatechitosan nanomultilayer coating, obtained by electrostatic layerby-layer self-assembling, in the quality and shelf life of fresh-cut mangoes. Coated and uncoated fresh-cut mangoes were stored under refrigeration (8°C) for 14 days. The changes in mass loss, titratable acidity, pH, ascorbic acid content, total soluble solids, malondialdehyde content, browning rate, and microbial count were evaluated during storage. At the end of the storage period, lower values of mass loss, pH, malondialdehyde content, browning rate, soluble solids, microorganisms' proliferation, and higher titratable acidity were observed in the coated mangoes. The nanomultilayer coating did not improve the retention of vitamin C during storage of fresh-cut mangoes. Results suggest that chitosan-alginate nanomultilayer edible coating extends the shelf life of fresh-cut mangoes up to 8 days.

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“…The type of romaine lettuce (Lactuca sativa L. var. Longifolia) is green, and loved by consumer because its leaves are crispy (Zhan et al 2012(Zhan et al , 2013.…”

Section: Introductionmentioning

confidence: 99%

The use of nile tilapia (Oreochromis niloticus) cultivation wastewater for the production of romaine lettuce (Lactuca sativa L. var. longifolia) in water recirculation system

2016

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In the recirculation aquaponic system (RAS), fish farming waste was utilized as a nutrient for plant, minimizing the water need, reducing the waste disposal into the environment, and producing the fish and plant as well. The study aimed to examine the growth of romaine lettuce (Lactuca sativa L. var. Longifolia) in aquaponic system without the addition of artificial nutrient. The nutrient relies solely on wastewater of nile tilapia (Oreochromis niloticus) cultivation circulated continuously on the aquaponic system. The results showed that tilapia weight reached 48.49 ± 3.92 g of T3 (tilapia, romaine lettuce, and inoculated bacteria), followed by T2 (tilapia and romaine lettuce) and T1 (tilapia) of 47.80 ± 1.97 and 45.89 ± 1.10 g after 35 days of experiment. Tilapia best performance in terms of growth and production occurred at T3 of 3.96 ± 0.44 g/day, 12.10 ± 0.63 %/day, 96.11 ± 1.44 % and 1.60 ± 0.07 for GR, SGR, SR, and FCR, respectively. It is also indicated by better water quality characteristic in this treatment. Romaine lettuce harvests of T2 and T3 showed no significant difference, with the final weight of 61.87 ± 5.59 and 57.74 ± 4.35 g.Overall, the integration of tilapia fish farming and romaine lettuce is potentially a promising aquaponic system for sustainable fish and horticulture plant production.

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Browning inhibition and quality preservation of fresh-cut romaine lettuce exposed to high intensity light

Cited by 121 publications

References 36 publications

Blue LED light enhances growth, phytochemical contents, and antioxidant enzyme activities of Rehmannia glutinosa cultured in vitro

Blue LED light enhances growth, phytochemical contents, and antioxidant enzyme activities of Rehmannia glutinosa cultured in vitro

Effect of an Edible Nanomultilayer Coating by Electrostatic Self-Assembly on the Shelf Life of Fresh-Cut Mangoes

The use of nile tilapia (Oreochromis niloticus) cultivation wastewater for the production of romaine lettuce (Lactuca sativa L. var. longifolia) in water recirculation system

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