Evaluation of apple quality during storage in a controlled medium (original) (raw)

Influence of Different Storage Methods on Apples Chemical Proprieties

“Agriculture for Life, Life for Agriculture” Conference Proceedings

The objective of preservation is to keep fruit fresh as long as possible after harvesting, without major physical, chemical or biological changes in their composition. The experimental factors underlying it the organization scheme are: A Factor - apple varieties: ‘Idared’, ‘Goldrush’, ‘Florina’, ‘Pinova’, ‘Dalinette’, ‘Golden reinderes‘,‘Golden lassa‘,‘Ariane‘; B factor - storage methods, with three graduations: classical method - low temperature and high humidity (1-4ºC; humidity 85-90%), Janny MT box storage method (1-4 ºC; 95-100% humidity; O2 1-3%; CO2 2-5%), fruit control equipment box-pallets (1- 4ºC; 90-95% humidity; O2 1-3%; CO2 2-5%) and factor C - fruit storage period -at 3, 4 and 5 months after harvest respectively. On the average of the cultivars taken in the study, on observe the tendency to increase the total dry mater and total sugar content, and decrease the total tritrable acidity and vitamin C with the prolongation of the fruit storage period.

Relationships between Life Shelf, Health and Quality of Apple Fruit

foliar-emulsified-fluids.ro

An open field experiment regarding the behavior of Jonathan cv apple fruit during temperature control storage was set up to RIFG Pitesti -Maracineni, Romania. Field test was organized on 2 plots (V1, reference plot and V2, foliar treated plot with Frucol 0.5% solution) and randomized over three replicates and 10 fruits analysis per plot. The fruit treatment was extended with calcium chloride 1% solution application in two stages before and after harvesting. All fruit quality parameters measurements were made immediately before the harvest, and after 90 day, and respectively 180 days of storage, using common recommended procedures. Causes and extent of fruit decay on whole length of storage were broadly discussed and analyzed in terms of foliar treatment outcome and impact. Statistical correlation according to Duncan test and Shapiro-Wilk were use to validate the results consistency. Some relevant accounts on storage diseases and physiological disorders responsible for fruit decay and breakdown concluded the study, on the grounds of microbiological tests and visual surveillance over entire period of storage. Program, 'Ideas', within the Research Project 1035/2007.

Research regarding the influence of storage conditions in quality of some apple varieties

The optimal time for harvest is determined by the output destination: fresh consumption, industrialization, etc. For fresh fruit consumption, harvest maturity is determined differently depending on the species, variety, storage conditions, away from the consumer, etc. In all cases, harvest is before maturity consumption by 1-2 days for cherries, cherry, strawberry, with 2-3 days for apricots, plums, peaches 5-7 days, 4-6 days for apples and Summer pears, with 15-30 days of autumn apples and pears, with 30-90 days for quince, apples and winter pears. Across the globe, in many countries the quality standards for fruits and vegetables are required by law. To be marketed in those countries, fruit and vegetables must meet these standards [2, 1]. Within the EU Marketing Standards (require suppliers to evaluate and sort apples based on a list of criteria, including: lack of damage, disease, scratches or physiological disorders, shape, color, aroma / taste [1, 3]. In this experiment we stud...

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 physical and chemical performance during storage of apple cultivar

Journal of Pharmacognosy and Phytochemistry, 2018

The fruit of apple (Malus domestica) cultivars Golden Delicious Red, Delicious, Red Gala and Honeycrisp were harvested at optimum maturity and stored at 5±2°C with 70-80 percent relative humidity. Physiochemical changes were determined in fruit at 30 days interval during storage and significant differences were observed among apple cultivars. Storage resulted in significant increased in weight loss, bitter pit incidence and soft rot, while juice content, starch score, titratable acidity, total soluble solids, total sugar, pH, TSS: Acid ratio ascorbic acid, firmness and density of fruit decreased with increasing storage duration. Harvesting at mid mature stage and calcium chloride (9%) treatment for 9 minutes resulted in enhanced storage performance.

Effects of storage durations on quality parameters of Apple cultivars

The main objective of the present research was to study the influence of storage durations on physicochemical changes in fruit of apple cultivars stored in underground pit using a wooden box as storage material. Apple cultivars Crispin, Jonagold, Jonagored, Red delicious and BR harvested at optimum maturity. Each cultivar stored for 0, 30, 60, and 90, days of durations in underground pit. The experiment was laid out in Completely Randomized Design (CRD) and each treatment replicated three times. The physico-chemical changes in fruit were analysed and determined at 30 days interval during storage. The study revealed cultivar Crispin had the highest firminess (4.6kg/cm 2 ), TSS (12.22 0 B) and least in weight loss (2.3%). Red delicious had higest weight loss (3.3%), TSS/acid ratio (26.81) but least in TSS (10.16 0 B), juice percentage (46.73%) and TA (0.42%). In this study least amounts of firminess (3.2 kg/cm 2 ) and TSS/acid ratio (18.4) were observed in fresh fruit sample of BR and Jonagold cultivars under the storage durations. Weight loss (%) was increased significantly with increased in storage durations. It was highest (3.6%) and least (2.25%) at 90 and 30 days of storage periods respectively. The highest juice percentage in fresh fruit sample was observed in Jonagored (62.13%) and Jonagold (61.42%) apple cultivars in study. Highest (58.2%) and least (49%) juice percentages were recorded 0 and 90 days of storage periods. It was decreased significantly from 30 to 90 days of storage. Fruit firminess was decreased significantly from 30 -90 days of storage. It was higest (4Kg/cm 2 ) and least at 30 and 90 storage periods respectively. There were no significant variations observed in TSS with the increased in storage period from 0 -60 days and it was decreased significantly from 60 -90 days of storage. The cultivar Crispin had a good quality attributes, whereas cultivar Jonagold and red delicious were easily rotted in underground storage. The results indicated underground pit storage of the fruit in the area at somehow lower temperature crated in storage facility in the study was promising technique with low infrastructure and installation costs.

Effect of Different Periods of Ambient Storage on Chemical Composition of Apple Fruit

2000

The investigations were carried out on five apple varieties viz. Golden delicious, Mashhadi, King Amri, Kalakulu and Amri to study the effect of ordinary storage at room temperature (25 o C) during the month of September with two weeks interval. The chemical analysis consisted of sugars, acidity, total soluble solids and ascorbic acids. There was increase in reducing sugar, decreased in non-reducing sugar and increase in total sugars of all varieties when storage period was prolonged. Nonsignificant decrease in acidity and significant increase in total soluble solids during storage of the five varieties at room temperature was observed. Vitamin C decreased during storage. The experiment enables us to conclude that 'Amri' and 'Golden Delicious' cvs. of apple can be stored up to six weeks to fetch good market price.

Assessment of Apple Fruits Under Cold Storage

Fruit Growing Research, 2021

The cold storage of fruits for a long period of time without quantitative and qualitative depreciations is absolutely necessary to supply the market with fresh fruits. This study aimed to investigate the changes in apple fruits during cold storage in order to determine their optimal storage capacity and to know the optimal moment of market sale. Five apple cvs. (‘Rumina’, ‘Rebra’, ‘Rustic’, ‘Generos’ and ‘Florina’) grown in the Genetics and Breeding Department of Research Institute for Fruit Growing Pitesti, Romania were kept in the cold storage at 2-4ºC and 90-95% humidity for 4 months. Before and after storage in cold conditions, the following physical and chemical parameters of fruits were evaluated: weight, color, firmness, soluble solids content and acids content. After 4 months, the fruits weight decreased with 2.45 g. The lowest weight loss was recorded on ‘Rumina’ cv. (1.48 g) and the highest for ‘Rebra’ cv. (3.20 g). At the end of storage period (January) the fruits firmnes...

Research regarding the principal chemical component loss in the apple fruit during storage

2006

The study presents a comparison of the loss that the fruit suffer during the storage period in both traditional and refrigerating storage, at the Fruit Research Station Cluj-Napoca, Romania. There were gathered biochemical data for four winter maturation apple varieties: Jonathan, Golden Delicious, Starkrimson and Wagener Premiat, during the months of October (at storage), December and March. The determined biochemical aspects were water, total sugar, and ascorbic acid. The refrigerating storage was better in comparison with the traditional storage, confirmed by biochemical composition. The lowest dehydration was for the apples stored in the refrigerating room. By storage method and apples varieties comparison, the lowest water loss was shown by Wagener Premiat varieties and the highest by Jonathan in refrigerating storage in comparison with traditional storage. Wagener Premiat varieties showed the best qualities even for total sugar and ascorbic acid in comparison with the others apples varieties studied. To keep the apples in optimum conditions, the genetic characters of each cultivar and the cultivar behaviour to CA storage is required.

Influence of Storage Technologies on Quality Parameters for Apple's Growth in Organic System

Fruit Growing Research

Nowadays, the consumer demand for organic fresh fruits with better nutritional quality has increased; therefore the market pressure for a prolonged shelf life is growing. For this reason, improving storage conditions and technologies is important and becomes highly relevant. The storage in controlled atmosphere conditions represent an efficient technology used for fruits and vegetables and is also accepted in organic system when gases like O₂, CO₂, and N₂ are used. Therefore, controlled temperature and humidity enhances the benefits of long-term storage and better shelf life, especially for organic fruits. Apples represent one of the most common organic fruits which require long-term storage. The aim of this work was to determine the optimal storage technologies for organic apples based on quality parameters. Apple varieties grown in the experimental orchard of University of Agronomic Sciences and Veterinary Medicine of Bucharest were harvested, stored and monitored for several months. The storage technologies applied were normal atmosphere with 1˚C and 95% relative humidity (RH) (for 2 months), combined with controlled atmosphere: 1˚C, 95% RH, 3% O₂ and two different CO₂ concentrations 5%, respectively 10% (for another 5 months). Quality parameters monitored consist in analysis of pH, total soluble solids (TSS), dry matter content (DM%), firmness, total titratable acidity (TAA) and ascorbic acid content. For all apple samples in all storage conditions, the ascorbic acid content registered decreases during storage.