Effect of ripening and storage temperatures on quality of atemoya (Annona cherimola Mill. × A. squamosa L.) fruit

2017 ◽  
pp. 161-166 ◽  
Author(s):  
P. Jomngam ◽  
K.Y. Chen ◽  
J. Chumpookam ◽  
C.C. Shiesh
Keyword(s):  
Annona Cherimola ◽  
And Storage ◽  
Storage Temperatures

scholarly journals Postharvest quality of pepino melon (Solanum muricatum Aiton) as influenced by NPK fertilizer rates, growing environment and storage temperature

2021 ◽  
Vol 35 (1) ◽  
Author(s):  
Carol Mutua ◽  
Joshua Ogweno ◽  
Robert Gesimba
Keyword(s):  
Low Temperature ◽  
Shelf Life ◽  
Room Temperature ◽  
Postharvest Quality ◽  
Solanum Muricatum ◽  
Npk Fertilizer ◽  
And Storage ◽  
Fertilizer Rates ◽  
Storage Temperatures

The present study evaluated the effect of NPK fertilizer (17:17:17) rates (0, 100, 200, 300 and 400 kg ha-1) on the postharvest quality of field and greenhouse grown pepino melons (Solanum muricatum Ait.) stored at room temperature (15-22°C) and at low temperature (7°C). The study was carried out in randomized complete block design with fruits from the field and greenhouse, five NPK fertilizer rates as treatments and the two storage temperatures replicated three times. Data were collected on percentage fruit weight loss (PWL), total soluble solids (TSS), firmness and shelf life. Results indicated that greenhouse and field grown fruits from the control and plants supplied with 100 kg NPK ha-1 had low PWL at both storage temperatures. Field grown fruits from the control stored at room temperature had the highest TSS and were firmer after 28 days of storage. Field grown fruits not supplied with fertilizer and stored at low temperature had a shelf life of 27 and 26 days in trial one and two respectively. Application of 100 kg NPK ha-1 and storage of pepino melon fruits at low temperature can be used to enhance quality and shelf life.

Effect of environment and vibration on quality change of bell pepper (Capsicum annum L.)

2017 ◽  
Author(s):  
Jinshi Cui ◽  
Myongkyoon Yang ◽  
Sungmin Park ◽  
Daesik Son ◽  
Eun Seong Jeong ◽  
...  
Keyword(s):  
Weight Loss ◽  
Bell Pepper ◽  
Storage Process ◽  
Worst Case ◽  
Low Humidity ◽  
Vibration Tests ◽  
And Storage ◽  
Pepper Sample ◽  
Storage Temperatures

Discoloration and dehydration are crucial problems associated with quality of bell pepper (Capsicum annuum L.). Color and weight loss of the bell pepper were measured at different vibration levels, storage environments and storage periods. Vibration tests were carried out at different ‘g’ levels from normal to the worst-case for 180 sec on the initial day. The effect of two different storage environments (10°C, 90 % RH and 18°C, 40 % RH) for four time periods (1, 4, 7 and 10 days) were observed. At 18°C, 40 % RH storage environment, more weight loss and duller color were observed. In the 10°C, 90 % RH storage environment, the group of bell pepper sample having 12 g level vibration had significantly much more weight loss compared to other groups. In this storage environment, most of bell pepper samples maintained vivid color. Storage life and fruit quality of bell pepper were affected by storage temperatures, humidity and duration. The results showed that high g level vibration, high temperature, and low humidity environment during harvesting and storage process of the bell pepper should be avoided.

scholarly journals Effects of Cultural Variety and Storage Temperatures on the Changes in Quality of Fresh-cut Sweet Pepper Fruit

1997 ◽  
Vol 23 (5) ◽  
pp. 243-251
Author(s):  
Kazuhiro ABE ◽  
Koichi YOSHIMURA ◽  
Yanfei ZHOU ◽  
Hiroshi KUROOKA
Keyword(s):  
Sweet Pepper ◽  
Pepper Fruit ◽  
Fresh Cut ◽  
And Storage ◽  
Storage Temperatures

scholarly journals Avaliação do desempenho produtivo e da qualidade físico-química dos frutos de tomateiro cereja produzidos sob a influência de porta-enxertos

2021 ◽  
Vol 4 (3) ◽  
pp. 61-71
Author(s):  
Antonia Mirian Nogueira de Moura Guerra ◽  
◽  
Ítalo José da Silva Rodrigues ◽  
Keyword(s):  
Room Temperature ◽  
Block Design ◽  
Physicochemical Characteristics ◽  
Chemical Quality ◽  
Cherry Tomato ◽  
Physical Chemical ◽  
Randomized Block Design ◽  
And Storage ◽  
Storage Temperatures

The objective was to evaluate the production and post-harvest quality of fruit from grafted and non-grafted tomatoes. The experiment was carried out in a randomized block design with five treatments (Jiloeiro, Berinjeleira, Jurubeba, 'Intacto' rootstock and the witness the cherry tomato without grafting) and 16 replicates. In the evaluation of physical-chemical quality, the experiment followed a randomized block design in a 5x2 factorial scheme (rootstocks and storage temperatures, 10 ºC and room temperature) four replications. For a better productive contribution of the cherry tomato, the use of rootstocks from Jurubeba and Intacto is indicated, however, the use of a rootstock did not contribute to the durability and physicochemical characteristics of the fruit. When conditioned at 10 ºC, the fruits showed a better visual and physical-chemical aspect in relation to the ambient temperature, with increased durability of the product in all treatments.

scholarly journals Textural Changes of Asparagus in Relation to Delays in Cooling and Storage Conditions

1992 ◽  
Vol 2 (3) ◽  
pp. 378-381 ◽  
Author(s):  
Luis Hernández-Rivera ◽  
Robert Mullen ◽  
Marita Cantwell
Keyword(s):  
Shear Force ◽  
Storage Temperature ◽  
Storage Conditions ◽  
Asparagus Officinalis ◽  
Shear Transfer ◽  
Textural Changes ◽  
And Storage ◽  
Temperature Time ◽  
Storage Temperatures

Asparagus (Asparagus officinalis L.) spears (cv. UC 157) trimmed to 20 cm were cooled 0, 4, 8, 12, 16, and 20 hours after harvest and evaluated for resistance to shear at 5 and 10 cm above the cut end immediately after cooling and during storage at 0.5, 2.5, and 5C. Resistance to shear increased during cooling delays and with time in storage. Initial cooling delays and simulated marketing conditions (transfer to 15C for 1 day) were the principal causes of increased resistance to shear. A 4-hour cooling delay resulted in an average 40% increase in resistance to shear. Transfer to 15C for 1 day resulted in a greater increase in shear force in the rapidly cooled than in the delayed-cooled spears. Increases in resistance to shear during storage varied from 0% to 50% and depended on the storage temperature, time, and the initial cooling delay. Spears trimmed to a green base showed less increase in shear force after storage than did spears trimmed to a white base. The visual quality of asparagus stored for 14 days was similar (excellent) among spears from different storage temperatures and between green- and white-base spears. Storage quality after 24 days had decreased more in spears stored at 5C than at 2.5 or 0.5C, and more in the green-base than the white-base spears.

Bacteriological Quality of Infant Milk Formulae Examined under a Variety of Preparation and Storage Conditions

1997 ◽  
Vol 60 (9) ◽  
pp. 1089-1094 ◽  
Author(s):  
N. J. ROWAN ◽  
J. G. ANDERSON ◽  
A. ANDERTON
Keyword(s):  
Storage Conditions ◽  
Bacteriological Quality ◽  
Preparation Conditions ◽  
Bacillus Spp ◽  
The Subject ◽  
The Uk ◽  
And Storage ◽  
Safety Limit ◽  
Storage Temperatures

One hundred infant milk formulae (IMFs), representative of the 10 leading brands available in the UK, were subjected to a variety of preparation and storage conditions. Each IMF was the subject of triplicate trials in which duplicate samples were analyzed. All IMFs analyzed immediately after reconstitution were of satisfactory bacteriological quality, exhibiting a total aerobic count of < 104 CFU g−1 (mean 2.3 × 102 CFU g−1) and a Bacillus cereus count of <103 CFU g−1 of powder (mean 1.3 × 102 CFU g−1 for formulae containing this bacterium). Seventeen percent of all dried IMF examined contained B. cereus; subsequent reconstitution and storage over a 24-h period at ≥30°C resulted in this organism being detected in a further 46% (63 of 100), so that the majority of these foods exceeded the International Dietetics Association of the European Community (IDAEC) proposed reconstitution safety limit of 103 CFU g−1. Variations in preparation conditions did not significantly influence the numbers of Bacillus CFU present (P < 0.05). The bacteriological quality of an IMF depended on the type and number of organisms initially present and on product temperature and duration of product storage. Microbial numbers in IMFs were influenced by storage temperatures of ≥ 20°C for 14 h, while incubation at ≤ 10°C for 24 h had no effect (P < 0.05). Although the microflora of dried IMFs predominantly consisted of B. licheniformis (46%) and B. subtilis (30%), subsequent reconstitution and incubation resulted in the shift to B. cereus I (31 %) and II (38%) as dominant organisms. The latter often grew to the exclusion of the former two Bacillus spp. Diarrheagenic enterotoxin was detected in 4% of IMFs analyzed after 14 h of storage at ≥ 25°C.

Effects of Temperature and Packaging Types on Ergosterol and Howard Mold Count Values of Tomato Paste during Storage

2014 ◽  
Vol 77 (3) ◽  
pp. 499-503
Author(s):  
RACI EKİNCİ ◽  
ÇTIN KADAKAL ◽  
MUSTAFA OTAĞ
Keyword(s):  
High Performance ◽  
Quality Evaluation ◽  
Storage Temperature ◽  
Microbiological Quality ◽  
Tomato Paste ◽  
Effects Of Temperature ◽  
And Storage ◽  
Storage Temperatures ◽  
Mold Count

The objective of the present study was to investigate the effects of temperature and packaging on ergosterol and Howard mold count (HMC) changes of tomato paste during storage. The other purpose of this study was to determine whether the measurement of ergosterol stability in tomato paste can be useful for the assessment of microbiological quality of tomato paste as related to the storage temperature (4, 20, 28, or 37°C) and time. Ergosterol analysis was done by using high-performance liquid chromatography. Tomato paste samples were packaged in either aseptic bags or tin boxes and stored at 4, 20, 28, or 37°C for a period of 10 months. The detection limit of ergosterol was 0.1 mg/kg. Measurements showed that packaging and storage temperatures of 28 and 37°C have a considerable influence on ergosterol and HMC changes in the product. The poor precision of the “percentage of discarded fruits” and HMC methods has increased the importance of ergosterol for the microbiological quality evaluation of tomato and tomato products. This article reports the data from what we believe to be the first survey for the influence of storage temperature and packaging material on ergosterol and HMC changes of tomato paste during storage.

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