Temperature Tolerance and its Induction: a New and Old Non-Chemical Tool in Postharvest Technology
A. Woolf; R. Shilton, J. Bowen, D. Barraclough, A. White and I. Ferguson
Program and Abstract. Australasian Postharvest Horticulture Conference. Royal Lakeside Novote., Rotorua, New Zealand. 27-30 September 2005. July 5-10, 2005. Page 24
2005
บทคัดย่อ
Temperature is perhaps the key postharvest tool for extending storage life, and is often used in conjunction with other techniques. With the general push for reduction in chemical use, there is resurgence in the study of temperature and its interaction with fruit quality. Storage temperature is one of the key issues, and generally; optimum temperatures have been determined for each cultivar in the country of origin. However, more subtle manipulations of temperature can influence optimum storage temperature. In addition, lower temperatures may be required, for example for extending storage life, or low temperature disinfestation (e.g. of fruitfly). An example of a more refined temperature manipulation is low temperature conditioning (holding fruit for short times at temperatures above the chilling temperature) prior to exposure to the lower "chilling" temperature. We have also examined more "extreme" treatments including moderate heat treatments which can confer tolerance to low temperature. Some biochemical mechanisms possibly involved these responses will be presented and discussed.