POSTHARVEST FACTORS ASSOCIATED WITH THE OCCURRENCE OF BREAKDOWN IN SPARTAN APPLE

1975 ◽  
Vol 55 (3) ◽  
pp. 743-747 ◽  
Author(s):  
S. W. PORRITT ◽  
P. D. LIDSTER ◽  
M. MEHERIUK
Keyword(s):  
Relative Humidity ◽  
Gibberellic Acid ◽  
Soluble Solids ◽  
Malus Pumila ◽  
Factors Associated ◽  
Holding Period ◽  
C Storage ◽  
Storage Atmosphere ◽  
Malus Pumila Mill ◽  
Soft Fruit

The incidence of internal breakdown in Spartan apples (Malus pumila Mill.) was significantly reduced by a 3-day holding period at 20 C or 2 wk in hypobaric storage at 0 C prior to 0 C storage. Dipping fruit in solutions of calcium chloride or gibberellic acid prior to storage also reduced the disorder. High relative humidity in the storage atmosphere was associated with soft fruit, low soluble solids, low ethylene production and increased incidence of breakdown.

scholarly journals COLD TOLERANCE OF BANANA FRUITS OF DIFFERENT CULTIVARS

2016 ◽  
Vol 29 (3) ◽  
pp. 629-641 ◽  
Author(s):  
JOÃO ALISON ALVES OLIVEIRA ◽  
LUIZ CARLOS CHAMHUM SALOMÃO ◽  
DALMO LOPES DE SIQUEIRA ◽  
PAULO ROBERTO CECON
Keyword(s):  
Relative Humidity ◽  
Low Temperature ◽  
Cold Storage ◽  
Room Temperature ◽  
Storage Time ◽  
Chilling Injury ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Average Temperature ◽  
C Storage

ABSTRACT The objective of this work was to evaluate the tolerance of fruits of different banana cultivars to low temperature storages. Fruits of the cultivars Nanicão (AAA), Prata (AAB), Vitória (AAAB), Maçã (AAB) and Caipira (AAA) were used. Clusters of three fruits were kept in cold storage for 7, 14 and 21 days, with average temperature of 10.53±0.37°C and relative humidity of 85%. Subsequently, the clusters were transferred to temperatures of 22±0.39°C and evaluated for 16 days. The fruits of all cultivars remained green after 21 days of storage at 10.53±0.37°C. Fruits of the cultivar Nanicão did not completely ripened after transferred to the 22°C storage, when stored for 7 days at low temperature. These fruits were firmer, with green peel and low soluble solids and titratable acidity. The fruits of all cultivars complete the ripening when transferred to room temperature after 21 days of cold storage. Chilling injuries increased with cold storage time in all cultivars. The cultivars Nanicão, Caipira and Maçã had more symptoms of chilling injury, while Prata and Vitória were more tolerant to the cold storage (10.53°C) for up to 21 days, showing normal ripening after transferred to the 22±0.39°C storage.

Efecto del almacenamiento en atmósferas bajas en oxígeno sobre la calidad e incidencia de escaldado superficial en manzanas Topred / Effect of low-oxygen atmospheres on quality and superficial scald of Topred apples

1997 ◽  
Vol 3 (3) ◽  
pp. 203-211 ◽  
Author(s):  
J. Graell ◽  
C. Larrigaudiere ◽  
M. Vendrell
Keyword(s):  
Titratable Acidity ◽  
Storage Conditions ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Low Oxygen ◽  
Superficial Scald ◽  
Holding Period ◽  
Appreciable Increase ◽  
Storage Atmosphere ◽  
Solids Content

In a 2-year study, Topred (TR) apples harvested from the area of Lleida (NE Spain) were treated with 3 rates (0, 1000 and 2000 ppm) of diphenylamine (DPA) and held in 3 different experimental storage conditions: standard controlled atmosphere (CA) with 3% O2 and 3% CO2; low oxygen (LO) atmosphere with 2% O2 and 2% CO2; ultra-low oxygen (ULO) atmosphere with 1% O2 and 1% CO2. All samples were maintained at 1 °C and 93-94% relative humidity. The incidence of super ficial scald and quality parameters were assessed in February, April and June, after storage plus 1 and 7 days at 20 °C, in samples from each treatment (anti-scald rate and storage atmosphere). Storage in ULO was effective in extending the storage life of the fruit. Firmness retention was better in these fruits than in fruits held in CA and LO storage; generally, after a 7-day post-storage holding period at 20 °C, the differences were maintained. The soluble solids content and titratable acidity were similar for all treatments. These changes were similar for the 2 years studied. Over one season (1993-94) the ULO atmosphere provided the best control of superficial scald in TR apples, although a low concentration of anti-scald was necessary in some cases. During the 7-day post-storage holding period the fruit of all treatments showed an increased incidence of scald, but fruit from the ULO treatment could be considered acceptable for market distribution. Susceptibility of fruit to scald exhib ited seasonal variation; in the 1994-95 season, DPA treatment was necessary to control scald in ULO apples. No appreciable increase in low O2 injury was found in this cultivar held in 1 or 2% O2.

INFLUENCE OF STORAGE HUMIDITY AND TEMPERATURE ON BREAKDOWN IN SPARTAN APPLES

1973 ◽  
Vol 53 (3) ◽  
pp. 597-599 ◽  
Author(s):  
S. W. PORRITT ◽  
M. MEHERIUK
Keyword(s):  
Relative Humidity ◽  
High Relative Humidity ◽  
Malus Pumila ◽  
High Incidence ◽  
Malus Pumila Mill

A high incidence of breakdown occurred in Spartan apples (Malus pumila Mill.) stored in atmospheres with high relative humidity (RH). Breakdown was observed in 40% of apples stored in 92–94% RH, but only 2.5% was found in comparable fruits stored at the same temperature in 80% RH.

scholarly journals Coagulatory active constituents of Malus pumila Mill. flowers

2018 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenhua Yin ◽  
Yong Zhang ◽  
Juanjuan Zhang ◽  
Jinmei Wang ◽  
Wenyi Kang
Keyword(s):  
Malus Pumila ◽  
Active Constituents ◽  
Malus Pumila Mill

Malus orientalis Uglitzk. Malus pumila Mill. Rosaceae

2020 ◽  
pp. 581-589
Author(s):  
Rainer W. Bussmann ◽  
Ketevan Batsatsashvili ◽  
Zaal Kikvidze ◽  
Narel Y. Paniagua-Zambrana ◽  
Manana Khutsishvili ◽  
...  
Keyword(s):  
Malus Pumila ◽  
Malus Pumila Mill ◽  
Malus Orientalis

scholarly journals Use of Chlorella sp. for coating ‘tommy atkins’ mango fruits stored under refrigeration

2018 ◽  
Vol 39 (2) ◽  
pp. 565 ◽  
Author(s):  
Agda Malany Forte de Oliveira ◽  
Railene Hérica Carlos Rocha ◽  
Wellinghton Alves Guedes ◽  
George Alves Dias ◽  
José Franciraldo de Lima
Keyword(s):  
Relative Humidity ◽  
Raw Materials ◽  
Storage Period ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Edible Coatings ◽  
Fruit Maturation ◽  
Chlorella Sp ◽  
Randomized Design ◽  
Completely Randomized Design

The number of studies on edible coatings that are used for extending the shelf life of fruits has steadily increased. For this purpose, it is necessary to choose raw materials with characteristics that maintain product quality. The objective of this study is to evaluate the effect of coatings of Chlorella sp. on the post-harvest conservation of ‘Tommy Atkins’ mango fruits. The experiment was conducted using a completely randomized design, and spray treatments (T) with 0%, 1%, 2%, 3%, or 4% of Chlorella sp. were applied to the fruits. After the treatments, the fruits were stored for 28 days (21 days at 10 °C and 42% relative humidity and 7 days at 25 °C and 42% relative humidity), and were analyzed on day 28. There was higher pulp firmness in fruits as the concentration of Chlorella sp. was increased, and the concentration of ascorbic acid was comparatively higher (22.17%) in fruits treated with 3% Chlorella sp. The percentage of soluble solids and the soluble solids/titratable acidity ratio were decreased as the coating concentrations were decreased. The use of Chlorella sp. at 1% and 2% allowed fruit maturation without compromising fruit quality attributes during the 28-day storage period.

Retracted: Long-term copper toxicity in apple trees (Malus pumila Mill) and bioaccumulation in fruits

2010 ◽  
pp. n/a-n/a ◽  
Author(s):  
Bai-Ye Sun ◽  
Shi-Hong Kan ◽  
Yan-Zong Zhang ◽  
Jun Wu ◽  
Shi-Huai Deng ◽  
...  
Keyword(s):  
Copper Toxicity ◽  
Malus Pumila ◽  
Apple Trees ◽  
Malus Pumila Mill

scholarly journals Study On Photovoltaic Modules On Greenhouse Roof For Energy And Strawberry Production

2019 ◽  
Vol 118 ◽  
pp. 03049
Author(s):  
Yilian Tang ◽  
Ming Li ◽  
Xun Ma
Keyword(s):  
Power Generation ◽  
Relative Humidity ◽  
The Other ◽  
Soluble Solids ◽  
Active Radiation ◽  
Photovoltaic Modules ◽  
Pv Modules ◽  
Roof Area ◽  
Microclimate Conditions ◽  
Better Than

The aim of this study was to investigate the effect of PV modules mounted on top of a greenhouse, on the growth of strawberries and microclimate conditions as well as to estimate the generated energy. In this study, two greenhouses with the same volume were established. One greenhouse was equipped with the opaque photovoltaic (OPV) modules which accounted for 25.9% of the roof area, and the other was equipped with the semi-transparent photovoltaic (STPV) modules which accounted for 20% of the roof area. The maximum annual power generation of OPV and STPV modules was 880 and 388 kWh with 30° tilt angle, respectively, by simulating different tilt angles. The temperature under the OPV and STPV modules was 2.9 and 1.1 °C lower than the unshaded part in the greenhouses, respectively, at noon in clear weather, and had little effect on relative humidity. The photosynthetically active radiation (PAR) under OPV and STPV modules was reduced by 43.5% and 31.7%, respectively, under the PE film greenhouse. The contents of soluble solids in strawberries in OPV and STPV greenhouses were 16.4 and 15.7 mg/g respectively, which were higher than those in unshaded samples. The quality and yield of the strawberry samples under the shade of OPV were better than those of the STPV shade.

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