Influence of Modified Atmospheres on Shelf Life and Quality of Fresh-Cut Apples

Author(s):  
Pushpendra Kumar ◽  
Shruti Sethi
2011 ◽  
Vol 233-235 ◽  
pp. 1985-1988 ◽  
Author(s):  
Wei Li Li ◽  
Xi Hong Li ◽  
Ya Jun Sun ◽  
Yao Tang ◽  
Yu Qian Jiang ◽  
...  

Impacts of packaging conditions on shelf-life quality of fresh-cut ‘Lushanxiang’ kiwifruit were investigated during 12 d of storage at 4 °C. Fruit slices were wrapped in 64 μm polypropylene (PP) film flushing with high CO2 (40% or 10%) atmosphere or passive modified atmospheres (air). Measurements of firmness, total phenolic content, chlorophyll and microbial growth were evaluated over time. Active packaging with the initial 10% CO2 plus 5% O2 was the most effective in maintaining flesh firmness, total phenolic and chlorophyll content, which was still 11N, 0.75 mg/mL and 0.09 mg/g respectively. Both 40% and 10% CO2 active modified packaging significantly inhibited the microbial grows. Further researches are needed to evaluate the sensory aspects, as well as to characterize the flesh translucency phenomenon of fresh-cut kiwifruits.


2018 ◽  
Vol 243 ◽  
pp. 19-25 ◽  
Author(s):  
Panhui Fan ◽  
Donald J. Huber ◽  
Zihan Su ◽  
Meijiao Hu ◽  
Zhaoyin Gao ◽  
...  
Keyword(s):  

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 172 ◽  
Author(s):  
Athanasios Koukounaras ◽  
Filippos Bantis ◽  
Nikolaos Karatolos ◽  
Christos Melissas ◽  
Antonios Vezyroglou

Shelf life of horticultural commodities is dependent on postharvest handling but also on a wide range of pre-harvest factors, which include genetic and environmental parameters. This study was conducted to explore the influence of cultivar, leaf position, and piece position on the leaf on visual quality of fresh-cut butterhead lettuce as well as the effect of a wide range of cultivation seasons on the postharvest quality and shelf life of baby leaves (spinach and ‘wild’ rocket). Six butterhead lettuce cultivars were used (cultivated soilless in an unheated plastic greenhouse) while the effect of leaf position on the plant (outer and inner leaves) and the piece position on the leaf (piece one close to the leaf base and piece four close to the top) were also evaluated. Baby leaves were cultivated under an unheated plastic greenhouse for winter production and under a nethouse for the rest of the growing season, with a total of five and seven sampling dates for spinach and ‘wild’ rocket respectively. The cultivar of butterhead lettuce had a significant effect on postharvest quality of fresh-cut product but more important was the piece position on the leaf. When this was closer to the base of the leaf, there was more browning on cut edges and limited shelf life for the fresh-cut lettuce. The result was associated in one tested cultivar with PAL activity, which was higher by 106% for piece one compared to piece four as an average for the whole storage period. The growing season of baby leaves had a great impact on their shelf life, with the season of mild environmental conditions achieving the highest marketability.


Food Control ◽  
2008 ◽  
Vol 19 (2) ◽  
pp. 191-199 ◽  
Author(s):  
G. Oms-Oliu ◽  
R.M. Raybaudi-Massilia Martínez ◽  
R. Soliva-Fortuny ◽  
O. Martín-Belloso

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 817C-817
Author(s):  
Chien Wang*

The objective of this study was to determine if treatment with methyl jasmonate (MJ), a naturally occurring substance, would extend the shelf life of tomato slices, specifically when slices were cut from fruit previously treated with this natural product. Tomatoes were harvested at breaker stage. The fruit were divided into four lots. The first three lots were treated with MJ right after harvest at the breaker stage. Fruit from the first lot were sliced immediately after MJ treatment. Fruit from the second lot were placed at 20 °C and allowed to ripen to red stage before slicing. Fruit from the third lot were treated the same way as those in the second lot except they received an additional MJ treatment just before slicing. Fruit from the fourth lot were placed at 20 °C and allowed to ripen to red stage before MJ treatment and slicing. Each lot also included an untreated control. MJ treatments were carried out in 200-L airtight containers. MJ was spotted onto filter paper at final vapor concentration of 10-5 M. Fruit were cut with a meat slicer to obtain slices with 5-mm thickness. Slices were placed in 1-L clear plastic trays with lids and stored at 5 °C. Samples were transferred daily from 5 to 20 °C for evaluation. Fresh-cut tomatoes treated with MJ and sliced at breaker stage (lot 1) had less decay, better quality, and longer shelf life than the untreated slices. However, no differences were found between the control slices and treated slices at the red stage regardless the time of MJ treatment and whether or not additional MJ treatments were applied (lots 2, 3 & 4). The results indicate that the effectiveness of MJ in reducing decay and maintaining quality is affected by the stages of ripeness of tomatoes and the types of decay.


2021 ◽  
Vol 9 (11) ◽  
pp. 2404
Author(s):  
Qian Zhao ◽  
Shihua Tang ◽  
Xiang Fang ◽  
Zhuo Wang ◽  
Yu Jiang ◽  
...  

In order to explore whether beneficial lactic acid bacteria (LAB) could prolong the shelf life and improve the quality of fresh-cut apples, Lactiplantibacillus plantarum BX62, which was isolated from traditional fermented yak yogurt, and chitosan (CT), were applied to fresh-cut apples, subsequently stored at 4 °C. On days 0, 2, 4, 6, and 8, apple slices were taken for physicochemical, microbiological analysis, and sensory evaluation. The results showed that apple slices coated with L. plantarum BX62 (8 log CFU/mL) presented lower weight loss and browning rate, higher DPPH scavenging capacity, and achieved more effective inhibition of polyphenol oxidase (PPO) and peroxidase (POD) activities compared to the control samples. The application of CT alone or in combination with L. plantarum BX62 resulted in a significant reduction in aerobic mesophilic bacteria (AMB), aerobic psychrophilic bacterial (APB), yeast and molds (YAMs) counts (2.31 log CFU/g for AMB, 2.55 for APB, and 1.58 for YAMs). In addition, L. plantarum BX62 coated apples showed acceptable sensory properties in terms of color, flavor, taste, texture, and overall visual quality during 8 d of storage. On this basis, L. plantarum BX62 could be used as an excellent bio-preservative to extend the shelf life and improve the quality of fresh-cut apples.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yajing Xie ◽  
Qiong Lin ◽  
Wenqiang Guan ◽  
Shuzhen Cheng ◽  
Zhidong Wang ◽  
...  

Fresh-cut vegetables, such as potato chips, get brown quickly and can easily be infected by bacterium during storage. Sodium acid sulfate (SAS) and UV-C treatments are regarded as effective methods for food preservation. In this study, the effects of SAS, UV-C treatment, and their combination on fresh-cut potatoes during storage were evaluated. Compared with the control, all of the treatments were effective in inhibiting the bacterial growth during the whole storage period. Also, both SAS and SAS + UV-C treatments significantly decreased browning and polyphenol oxidase (PPO) activity and increased the firmness and malondialdehyde (MDA) contents, while the UV-C treatment has no good effects on protecting such storage qualities in fresh-cut potatoes. However, when compared with SAS treatment, the combination of SAS and UV-C treatment did not promote the effect in protecting the storage abilities. Thus, it was concluded that SAS is a better treatment in extending shelf life and controlling the quality of fresh-cut potatoes during storage compared to UV-C treatment.


2002 ◽  
Vol 65 (10) ◽  
pp. 1641-1645 ◽  
Author(s):  
GURBUZ G. GUNES ◽  
JOSEPH H. HOTCHKISS

The effects of reduced-O2 and elevated-CO2 modified atmospheres (MAs) and abusive temperatures on the growth and survival of E. coli O157:H7, yeast, and molds and on changes in the visual quality of fresh-cut apples were evaluated. High-CO2 and low-O2 (≥15% and <1%, respectively) atmospheres inhibited the growth of the pathogen on apple slices at 15 and 20°C. However, the population of the pathogen increased by 1 log cycle after 2 weeks of storage in air. The high-CO2 MA resulted in the inhibition of yeast and mold growth, less browning, and better visual quality than did air and ambient-CO2 atmospheres. The results of this study confirm that E. coli O157:H7 can grow on apple slices in air. These results also show that these organisms survive but are inhibited in MAs with high CO2 levels at abusive temperatures. An MA can increase the shelf life of fresh-cut apples by improving retention of visual quality and inhibiting yeast and molds. Thus, contamination of minimally processed apples with E. coli O157:H7 can be a safety issue for both air- and MA-packaged cut apples.


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