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STUDY LOOKS INTO EXTENDING SHELF LIFE

Controlled atmosphere storage of mango fruit: challenges and thrusts and its implications in international mango trade

Author:Singh, Z.Zaharah, S. S.


Source:
Acta horticulturae 2015 no.1066 
pp. 179-191

ISSN:0567-7572


Subject:

air transportationcarbon dioxidechilling injurycold storagecolorconsumer demandconsumer preferencescontrolled atmosphere storagecost effectivenesscultivarsethanolflavorfreightfruit qualityinternational trademangoesnitrogenodorsoxygenpestspostharvest diseasespostharvest treatmentrelative humidityshelf lifestorage temperaturesupply chaintitratable acidityvolatile compoundsworld markets

Abstract:The highly perishable nature of mango fruit and its susceptibility to chilling injury (CI) when stored below 13°C limits its international trade.

Cold storage of mango at 12-13°C is successful only for 2-3 weeks coupled with substantial losses in fruit quality. Cold storage limits the use of sea freight which is usually more economical and eco-friendly than air freight.

Controlled atmosphere (CA) storage usually involves regulating the concentration of oxygen (O2) and carbon dioxide (CO2) using nitrogen, storage temperature, as well as relative humidity in the storage environment.

CA in combination with an optimum storage temperature has been reported to prolong the storage life and maintain fruit quality including aroma volatiles in mango fruit depending upon the cultivar.

Fruit quality is an important factor in influencing consumer preferences in international and domestic markets.

CA storage seems to be promising in extending storage life, maintaining quality of mango fruit consequently offers opportunities to export mangoes to distant markets using sea freight.

This overview paper will focus on fundamental and applied aspects of CA storage of mango fruit and its implications in facilitating international trade.

Some research work has been reported on optimising CA conditions for different cultivars of mango as the CA requirements of mangoes vary among cultivars and inappropriate CA conditions adversely affect quality of ripe mango fruit.

CA comprising of low O2 concentrations (<2%) has been reported to accumulate ethanol and adversely affect fruit quality of ‘Tommy Atkins’ and ‘Delta R2E2’ cultivars of mango.

This research group has been exploring the effects of CA on extending storage life, maintaining fruit quality including aroma volatiles production in mango fruit for more than a decade.

CA storage comprising 3% O2 in combination with 6% CO2 at 13°C proved to be beneficial for extending the storage life of the Australian mango cultivars ‘Kensington Pride’ and ‘R2E2’ by up to six weeks, with good fruit quality and maintaining a high concentration of the major volatile compounds responsible for the aroma of ripe mangoes.

The applications of CA in preventing CI, postharvest diseases and insect disinfestations will also be discussed.

The faster rate of expansion of mango production, its international trade, short shelf life, and higher susceptibility to CI, postharvest diseases, as well as consumer demand for superb quality are major challenges in extending storage life of mango fruit and their implications in international trade. CA storage offers a great potential in extending storage life of mango which enable to employ sea freight for wider distribution of mango fruit in the distant international markets in a very cost effective manner.

A specific composition of O2 and CO2 in CA which extends the storage life of mango fruit is cultivar dependent and is yet inconclusive.

Moreover, to minimise the negative effects of CA storage in mango such as fruit softening, poor colour development and higher titratable acidity (TA), reduced aroma and flavour are major research gaps yet to be addressed by the research in the future.

CA storage offers an attractive alternative for ameliorating CI, controlling of postharvest diseases and pests in combination with preharvest technology.

A holistic approach to meet market requirements considering mango production, postharvest handling including CA storage and supply chain is prerequisite for promoting international trade of mango.

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India




Alphonso





Alphonso (mango)
From Wikipedia, the free encyclopedia








Alphonso (हापुस Haapoos in Marathi, હાફુસ in Gujarati, ಆಪೂಸ್ Aapoos in Kannada) is a mango cultivar that is considered by many[who?] to be one of the best in terms of sweetness, richness and flavor. 


It has considerable shelf life of a week after it is ripe making it exportable. 

It is also one of the most expensive kinds of mango and is grown mainly in Kokan region of western India.

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Mangoes date back 65 million years according to research ...

Experts at the Birbal Sahni Institute of Palaeobotany (BSIP) here have traced the origin of mango to the hills of Meghalaya, India from a 65 million year-old fossil of a mango leaf. 





The earlier fossil records of mango (Mangifera indica) from the Northeast and elsewhere were 25 to 30 million years old. The 'carbonized leaf fossil' from Damalgiri area of Meghalaya hills, believed to be a mango tree from the peninsular India, was found by Dr R. C. Mehrotra, senior scientist, BSIP and his colleagues. 




After careful analysis of the fossil of the mango leaf and leaves of modern plants, the BISP scientist found many of the fossil leaf characters to be similar to mangifera.


An extensive study of the anatomy and morphology of several modern-day species of the genus mangifera with the fossil samples had reinforced the concept that its centre of origin is Northeast India, from where it spread into neighbouring areas, says Dr. Mehrotra. 




The genus is believed to have disseminated into neighb…

INDIA 2016 : Mango production in state likely to take a hit this year

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Mangaluru: Vagaries of nature is expected to take a toll on the production of King of Fruits - Mango - in Karnataka this year. A combination of failure of pre-monsoon showers at the flowering and growth stage and spike in temperature in mango growing belt of the state is expected to limit the total production of mango to an estimated 12 lakh tonnes in the current season as against 14 lakh tonnes in the last calendar year.



However, the good news for fruit lovers is that this could see price of mangoes across varieties decrease marginally by 2-3%. This is mainly on account of 'import' of the fruit from other mango-growing states in India, said M Kamalakshi Rajanna, chairperson, Karnataka State Mango Development and Marketing Corporation Ltd.




Karnataka is the third largest mango-growing state in India after Uttar Pradesh and Maharashtra.



Inaugurating a two-day Vasanthotsava organized by Shivarama Karantha Pilikula Nisargadhama and the Corporation at P…