Responses of phytonutrients and tissue condition in persimmon and cucumber to postharvest UV-C irradiation

Imaizumi, Teppei; Yamauchi, Mizuha; Sekiya, Madoka; Shimonishi, Yutaro; Tanaka, Fumihiko

doi:10.1016/j.postharvbio.2018.06.003

Cited by 40 publications

(19 citation statements)

References 28 publications

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“…Post-harvest treatment with UV-B and UV-C has been widely used in fruit and vegetable storage [199,263], where it delays fruit ripening and senescence [264], and activates the defenses against pathogens [265]. Post-harvest UV treatment has been exploited in grapes to increase the content in phenolic compounds including stilbenes in berries and wines [199] (Table 1).…”

Section: Uv Radiationmentioning

confidence: 99%

Impact of Environmental Factors on Stilbene Biosynthesis

Valletta

Iozia

Leonelli

2021

Plants

115

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Stilbenes are a small family of polyphenolic secondary metabolites that can be found in several distantly related plant species. These compounds act as phytoalexins, playing a crucial role in plant defense against phytopathogens, as well as being involved in the adaptation of plants to abiotic environmental factors. Among stilbenes, trans-resveratrol is certainly the most popular and extensively studied for its health properties. In recent years, an increasing number of stilbene compounds were subjected to investigations concerning their bioactivity. This review presents the most updated knowledge of the stilbene biosynthetic pathway, also focusing on the role of several environmental factors in eliciting stilbenes biosynthesis. The effects of ultraviolet radiation, visible light, ultrasonication, mechanical stress, salt stress, drought, temperature, ozone, and biotic stress are reviewed in the context of enhancing stilbene biosynthesis, both in planta and in plant cell and organ cultures. This knowledge may shed some light on stilbene biological roles and represents a useful tool to increase the accumulation of these valuable compounds.

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Section: Uv Radiationmentioning

confidence: 99%

Impact of Environmental Factors on Stilbene Biosynthesis

Valletta

Iozia

Leonelli

2021

Plants

115

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“…This result is in agreement with a previous report by Costa et al [30] who observed that UV-C treatment delays chlorophyll degradation in broccoli florets, and Pongprasert et al [31] who reported similar results in banana fruit. However, Imaizumi et al [32] reported that cucumbers treated with UV-C showed a decrease in chlorophyll level during storage. The difference may be associated with the difference in skin fruit structure and type of produce, where mango is a climacteric fruit and chlorophyll degradation relates to the natural ripening process of fruit, whilst cucumber is non-climacteric produce and a decreasing chlorophyll level is associated with fruit senescence.…”

Section: Total Chlorophyllmentioning

confidence: 99%

Postharvest UV-C Treatment, Followed by Storage in a Continuous Low-Level Ethylene Atmosphere, Maintains the Quality of ‘Kensington Pride’ Mango Fruit Stored at 20 °C

2018

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Mature green ‘Kensington Pride’ mangoes (Mangifera indica L.) were treated with a short-term UV-C light at four different intensities (0, 4.0, 8.3 and 11.7 kJ m−2). After treatment, mangoes were stored for 12 d in air (<0.005 μL L−1 ethylene) or 0.1 μL L−1 ethylene at 20 °C and 100% relative humidity (RH). Weight loss, peel colour, firmness, ethylene production, respiration rate, total soluble solids (TSS), titratable acidity (TA), total chlorophyll content, total phenolic content (TPC) and total antioxidant activity were assessed at 3-d intervals. The results showed that UV-C treatment delayed skin degreening, reduced endogenous ethylene production, suppressed respiration rate and lowered chlorophyll content compared to untreated control fruit. Fruit treated with UV-C had significantly higher TPC and total antioxidant activity at the end of the storage period than untreated fruits for both storage atmospheres. In addition, UV-C treated fruits remained significantly firmer than untreated fruits. UV-C treatment significantly affected TSS and TA levels in different ways. Storage of fruits in 0.1 μL L−1 ethylene significantly affected fruit firmness, respiration rate and ethylene production, while other fruit quality parameters were similar to fruit stored in air. These results indicated that UV-C irradiation could be used as an effective and rapid method to extend the postharvest life of mature green mangoes without adversely affecting certain quality attributes in the presence of low-level ethylene during storage.

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“…The main factors that affect vegetables' quality include exposure to undesirable temperature, relative humidity and light [2]. It has been shown that storage at low temperatures and high humidity suppresses the respiration rate of fresh produce, extending their shelf life [9]. Furthermore, the use of sanitizing agents including chlorine and chlorine-based means for fresh produce decontamination, might not be able to sufficiently reduce the microbial load, while at the same time, these products have been associated with the production of harmful, carcinogenic compounds [9,10].…”

Section: Introductionmentioning

confidence: 99%

Quality Attributes and Storage of Tomato Fruits as Affected by an Eco-Friendly, Essential Oil-Based Product

Xylia

Ioannou

Chrysargyris

et al. 2021

Plants

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The preservation of fresh produce quality is a major aim in the food industry since consumers demand safe and of high nutritional value products. In recent decades there has been a turn towards the use of eco-friendly, natural products (i.e., essential oils-EOs) in an attempt to reduce chemical-based sanitizing agents (i.e., chlorine and chlorine-based agents). The aim of this study was to evaluate the efficacy of an eco-friendly product (EP—based on rosemary and eucalyptus essential oils) and two different application methods (vapor and dipping) on the quality attributes of tomato fruits throughout storage at 11 °C and 90% relative humidity for 14 days. The results indicated that overall, the EP was able to maintain the quality of tomato fruits. Dipping application was found to affect less the quality attributes of tomato, such as titratable acidity, ripening index and antioxidant activity compared to the vapor application method. Vapor application of 0.4% EP increased fruit’s antioxidant activity, whereas tomatoes dipped in EP solution presented decreased damage index (hydrogen peroxide and lipid peroxidation levels), activating enzymes antioxidant capacity (catalases and peroxidases). Moreover, higher EP concentration (up to 0.8%) resulted in a less acceptable product compared to lower concentration (0.4%). Overall, the results from the present study suggest that the investigated EP can be used for the preservation of fresh produce instead of the current commercial sanitizing agent (chlorine); however, the method of application and conditions of application must be further assessed for every commodity tested.

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Responses of phytonutrients and tissue condition in persimmon and cucumber to postharvest UV-C irradiation

Cited by 40 publications

References 28 publications

Impact of Environmental Factors on Stilbene Biosynthesis

Impact of Environmental Factors on Stilbene Biosynthesis

Postharvest UV-C Treatment, Followed by Storage in a Continuous Low-Level Ethylene Atmosphere, Maintains the Quality of ‘Kensington Pride’ Mango Fruit Stored at 20 °C

Quality Attributes and Storage of Tomato Fruits as Affected by an Eco-Friendly, Essential Oil-Based Product

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