ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Employing controlled atmospheres (CA) to maintain postharvest fresh fruit quality.

Kader, A. A.;

Rivista di Frutticoltura e di Ortofloricoltura Year: 2000 Vol: 62 Issue: 11 Pages: 44-47, 5-6

2000

บทคัดย่อ

Altering the atmosphere in postharvest storage conditions can, together with temperature and relative humidity control, extend postharvest shelf-life of fresh fruit and preserve its quality. Reducing the levels of O2 and raising those of CO2 can slow ripening and fruit ethylene production, attenuate physiological alterations in fruit at reduced storage temperatures, and restrict the development of pathogens and, hence, of browning and scald in storage. Adverse effects of CA can include the induction of specific physiological alterations in apples and pears, non-uniform ripening in over-extended storage periods and the development of unpleasant odours and tastes in stored fruit. Trials conducted in the USA now make it possible to apply specific CA conditions to many kinds of fruit so as to limit adverse effects. These new applications can be employed during transport and short-term storage of semi-processed fruit products, and studies are underway to develop various types of packaging with physio

logical solutions in plastic wrapping to control storage atmosphere and relative humidity of packaged fruit so as to enable long-term shelf-life in appearance and flavour traits of fruits and restrict the onset of alterations and damage during transport. It is noted that in all countries with an advanced horticultural produce industry research should be strengthened in a number of areas, especially as to the interaction of CA conditions, genotype and fruit ripening stage, control mechanisms against postharvest pathogens, upgrading manufacturing techniques for more refined and cheaper physiological packaging, and how to employ "dynamic CA" (variable conditions over time) during fruit storage and transport.