Experimental study of the consequences of controlled atmosphere conservation environment on cherry characteristics (original) (raw)
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Results regarding behaviour of some small fruits under controlled atmosphere conditions
Romanian Biotechnological Letters, 2014
The marketing of excessively perishable small fruits is very important for all the actors on the market channel, but also for consumers. Raspberries, red and black currants, and blackberries are fruits with limited storage life. The preserving of fruits firmness, flavour, aroma, colour and brightness during the storage is given by the level of some biochemical components. The objective of this research was to study the response of small fruits from different cultivars of raspberry, currant, and blackberry after the storage period under controlled atmosphere conditions. The content of some biochemical components of fruits, respectively total solids, total sugar, and total acidity, were measured and compared at the moment of harvesting and after the storage period. For the organoleptic assessment of fruit quality, there have been analyzed fruits aroma, taste, and attractiveness. The storage period under the controlled atmosphere conditions determined: a decrease of total solids and total sugar at currant, raspberry and blackberry; a decrease of total acidity at cultivars of currant and blackberry, while at cultivars of raspberry it was increased; a decrease of aroma and taste characteristics.
Postharvest Quality of Sweet Cherry Fruits as Affected by Bioregulators
Acta Scientiarum Polonorum Hortorum Cultus, 2019
During the cold storage of sweet cherry, severe losses can occur due to the water loss, phytopathogenic fungi and physiological disorders. The aim of this research was to assess the effects of treatments with NAA (α-naphthaleneacetic acid), BA (6-benzyladenine), and GA3 (gibberellic acid) on fruit quality at harvest and after 21 days of storage under two regimes, including 0°C, RH (relative humidity) 90% and 3°C, RH 70%, and after additional shelf life exposure. Sweet cherry cultivars – ‘Summit’, ‘Kordia’ and ‘Regina’ – were treated with bioregulators at the end of flowering. NAA significantly increased the fruit weight at harvest compared to the control in all cultivars assessed. BA stimulated the fruit growth in ‘Kordia’ and ‘Regina’, while it was ineffective in ‘Summit’. GA3 caused significant increase in fruit weight by 8.3% in ‘Kordia’ only. Moreover, BA and GA3 induced a higher firmness of fruits at harvest. Weight loss of fruits during storage at 0°C, RH 90%, was increased wi...
Storability of “Jonagold” Apple Fruit under Extreme Controlled Atmosphere Conditions
Journal of Agricultural Science and Technology B, 2016
In two consecutive seasons, the storage capacity of "Jonagold" apple fruit was investigated under regular air (RA) and various controlled atmosphere (CA) conditions during six months at 0 ± 0.3 °C. The different CA treatment combinations were: (1) 0.5 kPa O 2 + 0.5 kPa CO 2 , (2) 2.0 kPa O 2 + 1.0 kPa CO 2 , (3) 1.0 kPa O 2 + 3.0 kPa CO 2 and (4) 0.5 kPa O 2 + 6.0 kPa CO 2. Ethylene production and respiration rate were evaluated at each two months storage intervals during 7 d shelf life at 20 °C. Fruit quality traits were analyzed immediately at the end of storage period and after 7 d shelf life at 20 °C. Under CA treatment, the lower the O 2 and/or the higher the CO 2 partial pressure, the stronger was the inhibition of the ethylene production and respiration rate of apple fruit. The 0.5 kPa O 2 + 6.0 kPa CO 2 CA condition induced the strongest suppression in ethylene production and consequently lower CO 2 release by apple fruit. At the end of storage period, "Jonagold" apple fruit was very tolerant to all CA conditions, and any kind of internal storage disorders was observed. The storage of "Jonagold" apple at 1.0 kPa O 2 + 3.0 kPa CO 2 and 0.5 kPa O 2 + 6.0 kPa CO 2 proportionated higher flesh firmness (FF), greener skin color (SC) and higher titratable acidity (TA) either immediately after storage or after 7 d shelf life at 20 °C. Total soluble solids were not significantly affected by CA storage conditions.
Role of internal atmosphere on fruit ripening and storability—a review
Concentrations of different gases and volatiles present or produced inside a fruit are determined by the permeability of the fruit tissue to these compounds. Primarily, surface morphology and anatomical features of a given fruit determine the degree of permeance across the fruit. Species and varietal variability in surface characteristics and anatomical features therefore influence not only the diffusibility of gases and volatiles across the fruits but also the activity and response of various metabolic and physiological reactions/processes regulated by these compounds. Besides the well-known role of ethylene, gases and volatiles; O2, CO2, ethanol, acetaldehyde, water vapours, methyl salicylate, methyl jasmonate and nitric oxide (NO) have the potential to regulate the process of ripening individually and also in various interactive ways. Differences in the prevailing internal atmosphere of the fruits may therefore be considered as one of the causes behind the existing varietal variability of fruits in terms of rate of ripening, qualitative changes, firmness, shelf-life, ideal storage requirement, extent of tolerance towards reduced O2 and/or elevated CO2, transpirational loss and susceptibility to various physiological disorders. In this way, internal atmosphere of a fruit (in terms of different gases and volatiles) plays a critical regulatory role in the process of fruit ripening. So, better and holistic understanding of this internal atmosphere along with its exact regulatory role on various aspects of fruit ripening will facilitate the development of more meaningful, refined and effective approaches in postharvest management of fruits. Its applicability, specially for the climacteric fruits, at various stages of the supply chain from growers to consumers would assist in reducing postharvest losses not only in quantity but also in quality.
Agronomy, 2022
Sweet cherry is a highly appreciated seasonal fruit with a high content of bioactive compounds; however, this highly perishable fruit has a relatively short shelf-life period. Here, we evaluated the evolution of the physicochemical and sensory qualities of sweet cherries (Prunus avium (L.) cv. Satin) under different storage conditions, namely at a Farmers’ Organization (FO) and in a Research Centre (RC) under normal and four different conditions of controlled atmosphere for 49 days. Additional parameters were monitored, such as rotten fruit incidence and stem appearance. Temperature was the factor that most influenced the fruit quality changes over the study time. In fact, fruits stored at higher mean temperatures showed higher weight loss, higher variation in CIE-Lab colour parameters, higher firmness loss, and browner and more dehydrated stems and were less appealing to the consumer. Controlled atmosphere conditions showed a smaller decrease in CIE-Lab colour parameters and lower ...
Advances in Refrigerated and Controlled Atmosphere Storage of Fruits and Vegetables
Handbook of Research on Advances and Applications in Refrigeration Systems and Technologies
Long term storage of a variety of crops as well as long-distance transport, has allowed meeting the consumers' expectations in the supply of many types of fresh fruits and vegetables throughout the year. This is only possible with the use of several postharvest technologies. This chapter starts with a brief historical context followed by an overview of the technologies used for fruits and vegetables storage, including refrigerated and controlled atmosphere (CA) storage as well as the most recently developed technologies for storing these produces. We also address the innovation requirements in the refrigeration systems when integrating cold storage with CA, including the need for higher refrigeration capacity, use of air tight storage chambers, CO2 scrubbers and atmosphere generators. The effects of these methodologies on fruit physiology and quality during storage are further discussed. Finally, the current recommendations for long term storage using ‘Rocha' pear as a case ...
Influence of Modified Atmosphere Packaging on Quality and Shelf Life of Cornelian Cherry Fruits
Cornelian cherries were stored in two types of polymeric film (polypropylene and low density polyethylene) at 1°C and 90-95% relative humidity for 35 days. Unpackaged cornelian cherries were used as a control. Samples were taken initially and at 7-day intervals during storage and quality parameters were measured. The results showed that MAP could retain their weight and acceptable visual quality throughout the experiment, while the unpackaged fruits lost over 35% of their weight at the end of storage period and consequently their visual quality. Storage in MAP could retard soluble solid contents, titrable acidity, ascorbic acid, anthocyanin index decrease and pH increase during the storage time, than if kept in air in open containers. Furthermore, it also could significantly delay total phenolics accumulation and POD activity increase and led to better surface color preservation than the control. During the maintenance period no symptoms of decay was observed.
Dynamic controlled atmosphere: A review of methods for monitoring fruit responses to low oxygen
Comunicata Scientiae
The storage of fruit at minimum oxygen condition is crucial for optimal fruit quality maintenance. However, the optimal oxygen partial pressure of fruit varies according to several factors such as species, cultivar, harvest maturity, temperature, growing season and storage period. Based on these factors, storage technologies were developed that allow for the detection of the lower oxygen limit (LOL) and the storage of fruit under the lowest optimal oxygen partial pressure. One emerging technology is known as dynamic controlled atmosphere (DCA). Commercially, there are four DCA systems used: [1] DCA based on ethanol production and accumulation (DCA-Eth); [2] DCA based on chlorophyll fluorescence (DCA-CF); DCA based on the respiratory quotient (DCA-RQ) and [4] DCA based solely on CO2 production (DCA-CD). This reviews the recent developments of these DCA systems and their effect on fruit quality. Generally, the storage of fruit under DCA has a positive effect on the overall fruit quali...