Postharvest Handling of Fruit Vegetables
|Keywords:||冷藏;寒害;包裝;乙烯吸收劑;果菜;蔬菜生產與發展研討會專刊;Cold storage;chilling injury;packaging;ethylene absorbent;fruit vegetables||Issue Date:||Jun-1993||Publisher:||台中：農業試驗所||Start page/Pages:||249-262||Source:||蔬菜生產與發展研討會專刊:||Abstract:||
The fruit vegetables can meet the needs of vegetables during summer time when the supplying of other vegetables are shortening.There are still some postharvest problems remained to be solved, such as, lossing of moisture, weight loss, discoloration, quality deterioration, which might enhance the commercial loss, and they should be delicately handled. The postharvest loss of fruit vegetables including physiological disorder, mechanical damage, postharvest diseases and pests infestation. The technics to prevent losses are protective packaging by lining and padding,and lowering the storage temperature, modifying (or controlling) the atmosphere gases, and the so called ¡¥cold chain¡¨which keeps the commodities in constant cold temperature along with the whole marketing period.
In this presentation, the results of some researches on fruit vegetables such as on eggplant, sweet pepper, yard-long bean, bitter gourd and vegetable soybean are also introduced. That is, cold temperature storage can inhibit the respiration rates and reduce the losses of some endogenous constituents, but the storage temperatures are not benificial when they are below the critical temperature of chilling injury. Packaging with plastic films can reduce the moisture loss in the fruits. Yet the permeability of gases should be taken into consideration. A less permeable film might cause oxygen deficiency and result in fermentation, and a more permeable film might cause loss of moisture and result in dryness and shrinkage. Ethylene is a promotor of ripening and senenscence, and should be removed from the surroundings of fruit vegetables. Ethylene absorbent which made of alkali potassium permanganate carried by vermiculite can reduce the atmospheric ethylene and keep the vegetables more fresh and green, thus reduce the loss.
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