Improvement of the antioxidant status of tropical fruits as a secondary response to some postharvest treatments

González‐Aguilar, Gustavo A.; Villa-Rodríguez, José A.; Ayala-Zavala, J. Fernando; Yahia, Elhadi M.

doi:10.1016/j.tifs.2010.07.004

Cited by 122 publications

(74 citation statements)

References 45 publications

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“…The use of edible coatings to extend the shelf-life of fresh fruits is widely recognized; however more research is necessary to address the potential of this technology for improving nutritional qualities in fruit, especially with regard to antioxidant contents (Gonzalez-Aguilar et al 2010b).…”

Section: Introductionmentioning

confidence: 99%

Effect of edible coatings on bioactive compounds and antioxidant capacity of tomatoes at different maturity stages

et al. 2012

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This work evaluated the effect of carnauba and mineral oil coatings on the bioactive compounds and antioxidant capacity of tomato fruits (cv. "Grandela"). Carnauba and mineral oil coatings were applied on fresh tomatoes at two maturity stages (breaker and pink) over 28 day of storage at 10°C was evaluated. Bioactive compound and antioxidant activity assays included total phenols, total flavonoids, ascorbic acid (ASA), lycopene, DPPH radical scavenging activity (%RSA), trolox equivalent antioxidant capacity (TEAC) and oxygen radical absorbance capacity assay (ORAC). The total phenolic, flavonoid and lycopene contents were significantly lower for coated fruit than control fruits. However, ascorbic acid content was highest in fruits treated with carnauba, followed by mineral oil coating and control fruits. The ORAC values were highest in breaker tomatoes coated with carnauba wax, followed by mineral oil-coated fruits and controls. No significant differences in ORAC values were observed in pink tomatoes. % RSA and TEAC values were higher for controls than for coated fruit. Edible coatings preserve the overall quality of tomatoes during storage without affecting the nutritional quality of fruit. We found that the physiological response to the coatings is in function of the maturity stage of tomatoes. The information obtained in this study support to use of edible coating as a safe and good alternative to preserve tomato quality, and that the changes of bioactive compounds and antioxidant activity of tomato fruits, was not negatively affected. This approach can be used by producers to preserve tomato quality.

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Section: Introductionmentioning

confidence: 99%

Effect of edible coatings on bioactive compounds and antioxidant capacity of tomatoes at different maturity stages

et al. 2012

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“…Now, they have become quite common foods in countries that do not traditionally produce these types of fruits. The production of exotic fruits has increased in the last years due to their attractive sensorial properties and because they are claimed to be good source of vitamins, such as C and E, and bioactive compounds, as polyphenols or carotenoids (Vinci, Botrè, Mele, & Ruggieri, 1995;Gonzalez-Aguilar, Villa-Rodriguez, Ayala-Zavala & Yahia, 2010). In Portugal, the production of exotic fruits has increased in the last years due to a higher demand from consumers.…”

Section: Introductionmentioning

confidence: 99%

“…Exotic fruits can be very susceptible to qualitative and quantitative losses, including sensorial, microbial and nutritional losses. Once most of these fruits are imported from tropical countries with a higher production, it is necessary to apply postharvest treatments to extend its postharvest life (Gonzalez-Aguilar, et al, 2010;Sivakumar, Jiang, & Yahia, 2010).…”

Section: Introductionmentioning

confidence: 99%

Ascorbic acid content in exotic fruits: A contribution to produce quality data for food composition databases

Valente

Albuquerque

Sanches-Silva

et al. 2011

Food Research International

110

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“…This observation is in accordance with that of Shan et al (2008), who suggested that the high expression levels of PAL during early stages of fruit development are related to either an increase in vascular tissue formation or structural modifications in the mesocarp. The MiPAL expression decrease in fruits at RS2 and RS3 takes place because respiration has not reached the climacteric peak (PalafoxCarlos et al, 2012a); thus, the biosynthesis of phenolic compounds is not as important in the climacteric stage as it is for RS4 (Gonzalez-Aguilar et al, 2010). This could explain the downregulation observed of MiPAL expression and the observed upregulation at the end of mango ripening in RS4.…”

Section: Discussionmentioning

confidence: 99%

“…Different health-promoting properties have been revealed by these phenolics mainly because of their remarkable antioxidant capacity (Gonzalez-Aguilar et al, 2010). The highest phenolic content and antioxidant capacity among several mango varieties were reported for the Ataulfo variety (Manthey and Perkins-Veazie, 2009).…”

Section: Introductionmentioning

confidence: 99%

Expression and enzymatic activity of phenylalanine ammonia-lyase and p-coumarate 3-hydroxylase in mango (Mangifera indica ‘Ataulfo’) during ripening

Palafox-Carlos¹,

Contreras-Vergara²,

Muhlia‐Almazán³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. Phenylalanine ammonia lyase (PAL) and p-coumarate 3-hydroxylase (C3H) are key enzymes in the phenylpropanoid pathway. The relative expression of PAL and C3H was evaluated in mango fruit cultivar 'Ataulfo' in four ripening stages (RS1, RS2, RS3, and RS4) by quantitative polymerase chain reaction. In addition, enzyme activity of PAL and C3H was determined in mango fruits during ripening. The PAL levels were downregulated at the RS2 and RS3 stages, while C3H levels were upregulated in fruits only at RS3. The enzyme activity of PAL followed a pattern that was different from that of the PAL expression, thus suggesting regulation at several levels. For C3H, a regulation at the transcriptional level is suggested because a similar pattern was revealed by its activity and transcript level. In this study, the complexity of secondary metabolite biosynthesis regulation is emphasized because PAL and C3H enzymes are involved in the biosynthesis of several PAL and C3H expression and activity during mango ripening secondary metabolites that are active during all mango ripening stages.

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Improvement of the antioxidant status of tropical fruits as a secondary response to some postharvest treatments

Cited by 122 publications

References 45 publications

Effect of edible coatings on bioactive compounds and antioxidant capacity of tomatoes at different maturity stages

Effect of edible coatings on bioactive compounds and antioxidant capacity of tomatoes at different maturity stages

Ascorbic acid content in exotic fruits: A contribution to produce quality data for food composition databases

Expression and enzymatic activity of phenylalanine ammonia-lyase and p-coumarate 3-hydroxylase in mango (Mangifera indica ‘Ataulfo’) during ripening

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