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School of Food and Advanced Technology
College of Sciences
An examination of postharvest techniques towards seafreight export of feijoa (Acca sellowiana [O.Berg.] Burret)
The research question is how to extend the storage life of feijoa - a fruit of significant export potential due to its attractive aroma and nutritional content. All tested varieties of feijoas have been found to suffer from 'chilling injury'. Chilling injury is a physiological disorder that mainly affects tropical and subtropical crops when exposed to low temperature (above the freezing point) for a long period of time. Specifically in feijoa, the skin develops sunken patches that turn from green to brown to black and finally harden, while internally vascular bundles and flesh develop a pink to brown colour with mild off flavours. 'Conditioning' the fruit (holding it at a low but not harmful temperature for up to a few days) may reduce chilling injury by allowing the tissue to acclimate; and early harvest may improve storage potential. My thesis will focus on a smart approach to finding a practical combination of technologies that may extend low temperature storage life of feijoas. If successful this would open up sea freight as an export option, which is much cheaper than air freight and less constrained by volume.
This research is important to the New Zealand feijoa industry; production is expanding but export is constrained by expensive air freight. It is also important to Kenya and other African countries for increased skills and knowledge that I will personally gain on postharvest handling of horticultural crops.
New Zealand horticulture industry especially the New Zealand feijoa growers' association (NZFGA) and associated industries. Kenya Horticulture industry under Agriculture and Food Authority who is my employer. And personally the satisfaction of having a PhD in Food Technology will be worth.
Jacqueline comes from Eldoret town in Kenya (East Africa). I chose Massey University for its long outstanding legacy in Food Technology and the recognition it has world-wide. My long term goal is to work at F.A.O in Italy by supporting food security for humanity. After my PhD I will go back home to my country to share all the skills and knowledge I have gained while in New Zealand. I also hope to share my wonderful experiences of living in Palmy & NZ in general.
My 3MT presentation: http://webcast.massey.ac.nz/Mediasite/Play/52b523dd0d71442ea97ee3196a982dc41d
Open Researcher and Contributor ID (Orcid): orcid.org/0000-0002-2095-4878
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Last updated on Tuesday 04 April 2017