Influences of Ozone and Preservative on Chestnut during Ice Temperature Combined with Modified Atmosphere Storage

2012 ◽  
Vol 554-556 ◽  
pp. 1233-1236
Author(s):  
Ling Li ◽  
Jun Zhan ◽  
Li Ya Liang ◽  
Shi Jie Yan

The influences of ozone and preservative on chestnuts during ice temperature combined with modified atmosphere storage were investigated. Respiration rate, starch content, moisture content and peroxidase (POD) activity were used to evaluate the quality of chestnuts. The results showed that ozone and preservative treatment decreased respiration rate, and inhibited moisture evaporation and starch consumption. The respiration rate and peroxidase activity of chestnuts with ozone treatment were significantly lower than that of preservative treatment. It is indicated that ozone treatment is superior to preservative treatment for keeping storage effects and nutrients of chestnuts in some extent.

2009 ◽  
pp. 227-232 ◽  
Author(s):  
D.A. Neuwald ◽  
J. Streif ◽  
I. Sestari ◽  
R.F.H. Giehl ◽  
A. Weber ◽  
...  

HortScience ◽  
1991 ◽  
Vol 26 (5) ◽  
pp. 564-566 ◽  
Author(s):  
O.L. Lau ◽  
R. Yastremski

`Golden Delicious' apples (Malus domestics Borkh.) were subjected to either 0C controlled-atmosphere (CA) storage or to a postharvest coating of 1.0% to 2.5% Nutri-Save (NS; a polysaccharide derived from shellfish) plus air storage. NS-coated apples were greener and firmer and had higher titratable acidity (TA) and more shrivelled and injured fruit than the control after storage in air at 0C for 5 to 6 months and ripening in air at 20C for 7 days. Poststorage washing increased skin injury, and low relative humidity during ripening increased shriveling of NS fruit. NS applications led to an accumulation of CO2 and C2H4 and a small reduction of O2 in the fruit core cavities. The use of 1.5% O2 + 1.5% CO2 in the storage atmosphere was more effective than NS plus air storage in maintaining flesh firmness (FF) and TA without increasing fruit shrivel or skin injury. NS treatments maintained FF and a green skin in fruit ripened in air at 20C for 2 or 4 weeks following harvest, but some shrivel was evident by 4 weeks. Better retention of skin greenness was the only benefit derived from a poststorage NS treatment of CA-stored fruit during the shelf-life test.


2020 ◽  
Vol 40 (01) ◽  
Author(s):  
A. Karthiayani ◽  
V. Nithyalakshmi

Respiration rates (RR) have been used as an index for the metabolic activities of Mango during ripening and senescence. A knowledge on respiration rate will be very much needed for enhanced shelf life of Mango particularly during Modified Atmosphere Storage. Hence a work was carried out to determine respiration rates of three varities of mango (Magnifera indica) viz., Malgoa, Banganapalli and Neelum stored at three different tempertautres (Ambient, 24°C and 14°C). Known weight of fruits were kept under air tight condition in the plastic container fitted with a silicon septum. Every day three gas samples of 5 ml volume were drawn from the chamber through silicon rubber septum using a needle and the oxygen concentration was found out using MAP analyzer. The oxygen concentration was determined for 13 days of storage at all temperatures. The respiration rates were determined using experimentally and the values were substituted in formulae method for prediction. The value of the constants were determined using non-linear regression using Sigmaplot 8.0 software. The development of the mathematical model for the prediction of Respiration Rates were found to be useful for further reference.


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