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

Author(s):  
Jinshi Cui ◽  
Myongkyoon Yang ◽  
Sungmin Park ◽  
Daesik Son ◽  
Eun Seong Jeong ◽  
...  

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.

Author(s):  
Yanan Liu ◽  
Simin Zhao ◽  
Feng Guan ◽  
Yongjun Yuan

Cold chain logistics is a common way of fresh-keeping transportation at present, but in the actual transportation and storage process, temperature control is often not accurate, which leads to shortened shelf life. We evaluated the changes in the quality of Pseudosciaena crocea at different temperature during transportation. Specimens of P. crocea, were immersed in slurry ice for 20 min, and stored at 22℃, 4℃, or -1℃ for 4 days. During this period, the development of rancidity of P. crocea was measured by sensory (odor, skin, color, and flesh appearance) and biochemical (total number of colonies, TVB-N value, and K-value) analyses. A combination of sensory and biochemical parameters, and the Arrhenius equation were used to predict the shelf-life of P. crocea during storage. After verification under different storage temperatures, the relative error between the predicted and the measured values was found to be within 15%. The present work provides theoretical guidance for the quality control of P. crocea during transportation and storage.


2021 ◽  
Vol 35 (1) ◽  
Author(s):  
Carol Mutua ◽  
Joshua Ogweno ◽  
Robert Gesimba

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.


1997 ◽  
Vol 23 (5) ◽  
pp. 243-251
Author(s):  
Kazuhiro ABE ◽  
Koichi YOSHIMURA ◽  
Yanfei ZHOU ◽  
Hiroshi KUROOKA

1999 ◽  
Vol 5 (3) ◽  
pp. 215-222 ◽  
Author(s):  
A.E. Pérez-Guzmán ◽  
C. Saucedo-Veloz ◽  
R. Arana-Errasquín

Seal packaging of individual fruits of Dancy mandarin ( Citrus reticulata) with polyolefin (0.019 mm) and PVC (0.025 mm) significantly delayed their deterioration, and maintained firmer fruits with bet ter appearance than non-sealed fruits. The films were applied to fruits that had received conventional treatments of washing and disinfection, after which the fruits were stored with non-sealed fruits under refrigeration conditions (5 and 10 °C) during eight weeks plus six days at 20 °C. The results showed that the weight loss and deformation were significantly reduced by the effect of plastic films, at both storage temperatures. Furthermore, significant reductions in the internal atmosphere (CO, content) and ethanol content were observed in sealed fruits. In the sensory evaluation, the juice of sealed fruits showed a fresh flavor at the end of storage, whereas the juice of non-sealed fruits held at 10 °C developed off-flavors. The ripening index (°Brix/acidity ratio) increased significantly only in sealed fruits held at 10°C. The color index was not significantly modified by the effect of plastic films. However, the vitamin C content was significantly lower in sealed fruits at both storage temperatures.


2021 ◽  
Vol 4 (3) ◽  
pp. 61-71
Author(s):  
Antonia Mirian Nogueira de Moura Guerra ◽  
◽  
Ítalo José da Silva Rodrigues ◽  

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.


1992 ◽  
Vol 2 (3) ◽  
pp. 378-381 ◽  
Author(s):  
Luis Hernández-Rivera ◽  
Robert Mullen ◽  
Marita Cantwell

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.


2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Soesiladi E. Widodo ◽  
Kuswanta F. Hidayat ◽  
Zulferiyenni Zulferiyenni ◽  
Sherly I. Annisa

The research was aimmed at studying the effects of (1) single application AVGs,plastic wrappings, and storage temperatures, (2) interactions among AVGs andplastic wrappings, AVGs and storage temperatures, and plastic wrappings andstorage temperatures, and (3) interactions among AVGs, plastic wrappings, andstorage temperatures in extending fruit self-life and maintain qualities of‘Mutiara’guava fruits. The research was arranged in a completely randomized designin 2 x 2 x 2 factorial with three replications. The first factor was AVGs (with 1,25ppm and without AVG), the second factor was plastic wrappings (without and withone layer of plastic wrapping), and the third factor was storage temperature (a coldtemperature of 21, 53 ºC and a room temprature of 26,57 ºC). The result showed that(1) the application of AVG 1,25 ppm did not significantly affect fruit self-life, fruitfirmness, fruit weight loss, ºBrix, acid contens, and sweetness of ‘Mutiara’guava’fruits, (2) storage at cold temprature of 21, 53 ºC did not significantly affect fruit self-life, fruit firmness, fruit weight loss, ºBrix, acid contens, and sweetness of‘Mutiara’guava’ fruits, (3) the application of plastic wrapping was able to extend fruitself-life by 17 days longer than without plastic wrapping and supressed fruit weightloss of ‘Mutiara’guava, but accelerated softening and not able to maintain ºBrix, andalso did not significantly affect acid contens, and sweetness of ‘Mutiara’guava fruits,(4) there were no interaction effects among AVGs with plastic wrappings, AVGs withcold tempratures, and plastic wrappings with cold tempratures on self-life, fruitfirmness, fruit weight loss, ºBrix, acid contens, and sweetness of ‘Mutiara’guavafruits, and (5) there were no interaction effects among AVGs, plastic wrappings, andcold temperatures on fruit self-life, fruit firmness, fruit weight loss, ºBrix, acidcontens, and sweetness of ‘Mutiara’ guava fruits.


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