Dynamic controlled atmosphere (DCA): interaction between DCA methods and 1-methylcyclopropene on ‘Fuji Suprema’ apple quality

Weber, Anderson; Thewes, Fábio Rodrigo; Anese, Rogério de Oliveira; Both, Vanderlei; Pavanello, Elizandra Pivotto; Brackmann, Auri

doi:10.1016/j.foodchem.2017.05.047

Cited by 43 publications

(9 citation statements)

References 35 publications

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“…Fruit color is a quality parameter that plays a major role in consumer preference [ 30 ]. Therefore, the retention of color after harvest is of prime importance in determining the saleability of the fruit.…”

Section: Resultsmentioning

confidence: 99%

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Effects of Conventional and Bokashi Hydroponics on Vegetative Growth, Yield and Quality Attributes of Bell Peppers

Tong

Whitehead

Fawole

2021

Plants

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Due to consumers’ awareness and concern about nutrition and health in different parts of the world, the adoption of organic hydroponics is increasing. This has led to a search for organic nutrient media. One of the viable nutrient sources for organic hydroponics is bokashi compost. The principal objective of this study was to compare the performance of 10% bokashi hydroponics with convention hydroponics for bell pepper production. The different hydroponics influenced vegetative growth parameters largely due to considerable differences in the mineral elements in both hydroponic systems. Stems of conventionally grown plants were significantly (p ≤ 0.05) thicker (10.2 mm) compared to those of the bokashi grown plants (7.3 mm). Conventionally grown plants had significantly (p ≤ 0.05) higher photosynthetic performance than bokashi grown plants; normalized difference vegetation index (NDVI) (78.80 versus 67.49), soil plant analysis development (SPAD; 73.89 versus 38.43), and quantum yield (QY; 0.64 versus 0.49). Leaf superoxide dismutase (SOD) activity in the leaves of bokashi grown plants (0.32 units/mg protein) was significantly (p ≤ 0.05) lower than in the leaves of conventionally grown plants (0.37 units/mg protein). This also corresponded to significantly (p ≤ 0.05) higher leaf sap content in the conventionally grown plant than bokashi grown plants. Furthermore, conventional hydroponics yielded three-fold greater pepper fruit per plant compared to bokashi. After 14 days of storage at 7 °C and 95% relative humidity, the firmness of both groups declined, especially for the bokashi grown fruit (27.73 shore unit), which was significantly lower compared to conventionally grown fruit (35.65 shore unit). However, there was an increase in carotenoid content in fruit grown in both hydroponic systems after storage. In conclusion, although bell pepper plant was successfully cultivated in bokashi hydroponics, the plant performance, fruit yield and postharvest quality were lower than conventional hydroponics. We believe that this study and its approach will provide future research with baseline information on optimizing media of bokashi hydroponics to produce bell pepper.

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Section: Resultsmentioning

confidence: 99%

“…19,160 SOD, Johannesburg, South Africa). According to the manufacturer’s instructions, the analysis was conducted and calculated as units/mg protein [ 30 ].…”

Section: Methodsmentioning

confidence: 99%

Effects of Conventional and Bokashi Hydroponics on Vegetative Growth, Yield and Quality Attributes of Bell Peppers

Tong

Whitehead

Fawole

2021

Plants

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“…It can be generally defined as a system that allows the customization of oxygen levels [118]. Weber et al [94], Mditshwa et al [95,96], and Wright et al [121] are authors that focused on the effect of DCA to control physiological disorders (see Table 2). Besides the effort that has been made to transform DCA as a postharvest method, it should be noted the diversity of orchard practice and technological complexities among postharvest industries.…”

Section: Effects: Reduction Of Scald Incidence Bymentioning

confidence: 99%

Strategies to Preserve Postharvest Quality of Horticultural Crops and Superficial Scald Control: From Diphenylamine Antioxidant Usage to More Recent Approaches

et al. 2020

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Horticultural crops are vulnerable to several disorders, which affect their physiological and organoleptic quality. For about forty years, the control of physiological disorders (such as superficial scald) in horticultural crops, particularly in fruit, was achieved through the application of the antioxidant diphenylamine (DPA), usually combined with controlled atmosphere (CA) conditions. However, identification of DPA residues and metabolites in treated fruits, associated with their toxicity, banned the use of this antioxidant in Europe. This triggered the urgent need for novel and, ideally, natural and sustainable alternatives, combined with adequate storage conditions to protect cultivars from harmful agents. This review systematizes the state-of-the-art DPA application on several fresh cultivars, such as apples, pears, and vegetables (potatoes, spinach, etc.), as well as the possible mechanisms of the action and effects of DPA, emphasizing its antioxidant properties. Alternative methods to DPA are also discussed, as well as respective effects and limitations. Recent research on scald development molecular pathways are highlighted to open new non-chemical strategies opportunities. This appraisal shows that most of the current solutions have not lead to satisfactory commercial results; thus, further research aimed to understand the mechanisms underlying postharvest disorders and to design sustainable and safe solutions to improve horticultural products storage is needed.

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“…In a DCA-RQ system, the entire storage is isolated from a gas control system so the concentration of O 2 and CO 2 can be measured and RQ calculated. The estimated RQ is then used to control the O 2 concentration [ 11 , 16 , 17 , 19 , 20 ]. The limitation of such a system is that the entire storage room must be temporarily isolated for several hours (from 4 h to 24 h) so no O 2 and CO 2 gas control takes place during this period.…”

Section: Introductionmentioning

confidence: 99%

In-Situ Measurement of Fresh Produce Respiration Using a Modular Sensor-Based System

Keshri

Truppel

Herppich

et al. 2020

Sensors

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In situ, continuous and real-time monitoring of respiration (R) and respiratory quotient (RQ) are crucial for identifying the optimal conditions for the long-term storage of fresh produce. This study reports the application of a gas sensor (RMS88) and a modular respirometer for in situ real-time monitoring of gas concentrations and respiration rates of strawberries during storage in a lab-scale controlled atmosphere chamber (190 L) and of Pinova apples in a commercial storage facility (170 t). The RMS88 consisted of wireless O2 (0% to 25%) and CO2 sensors (0% to 0.5% and 0% to 5%). The modular respirometer (3.3 L for strawberries and 7.4 L for apples) consisted of a leak-proof arrangement with a water-containing base plate and a glass jar on top. Gas concentrations were continuously recorded by the RMS88 at regular intervals of 1 min for strawberries and 5 min for apples and, in real-time, transferred to a terminal program to calculate respiration rates ( R O 2 and R CO 2 ) and RQ. Respiration measurement was done in cycles of flushing and measurement period. A respiration measurement cycle with a measurement period of 2 h up to 3 h was shown to be useful for strawberries under air at 10 °C. The start of anaerobic respiration of strawberries due to low O2 concentration (1%) could be recorded in real-time. R O 2 and R CO 2 of Pinova apples were recorded every 5 min during storage and mean values of 1.6 and 2.7 mL kg−1 h−1, respectively, were obtained when controlled atmosphere (CA) conditions (2% O2, 1.3% CO2 and 2 °C) were established. The modular respirometer was found to be useful for in situ real-time monitoring of respiration rate during storage of fresh produce and offers great potential to be incorporated into RQ-based dynamic CA storage system.

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Dynamic controlled atmosphere (DCA): interaction between DCA methods and 1-methylcyclopropene on ‘Fuji Suprema’ apple quality

Cited by 43 publications

References 35 publications

Effects of Conventional and Bokashi Hydroponics on Vegetative Growth, Yield and Quality Attributes of Bell Peppers

Effects of Conventional and Bokashi Hydroponics on Vegetative Growth, Yield and Quality Attributes of Bell Peppers

Strategies to Preserve Postharvest Quality of Horticultural Crops and Superficial Scald Control: From Diphenylamine Antioxidant Usage to More Recent Approaches

In-Situ Measurement of Fresh Produce Respiration Using a Modular Sensor-Based System

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