Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (1): 167-174.DOI: 10.3969/j.issn.1000-2561.2020.01.023

• Agricultural Product Processing, Preservation, Storage, Analysis and Detection • Previous Articles     Next Articles

Effect of Bagging Treatment on Fruit Quality of Pitaya in High Temperature and High Humidity Areas

DENG Haiyan1,HUANG Lifang1,LIANG Guidong1,HE Quanguang2,*(),WU Zhijiang1   

  1. 1. Horticultural Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
    2. Institute of Agro-products Processing Science and Technology, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
  • Received:2019-06-26 Revised:2019-07-26 Online:2020-01-25 Published:2020-01-21
  • Contact: HE Quanguang

Abstract:

The diurnal variation of temperature and humidity in five different types of fruit bags and their effects on fruit quality, fruit diseases and water loss after harvest of pitaya fruit were analyzed to select suitable fruit bags for pitaya fruit in high temperature and wetland areas. The red-skin and red-flesh type ‘Guihonglong 2’ pitaya fruit was used as the material in the experiment. The temperature in the bag increased faster after bagging, and the temperature in the bag during the day was significantly higher than that in the control group. The bagging made the peel thinner, edible rate increased, and scales turn red. The effect of kraft paper bags was the best. Bagging significantly increased the content of pigments in the pericarp and pulp, significantly increased the content of soluble solids, increased the content of glucose and fructose in different degrees, and also increased the content of malic acid and citric acid. Bagging generally reduced the degree of water loss after harvest. White paper bags and non-woven bags were helpful to reducing the incidence of postharvest diseases. Except black nylon net bags, other bagging increased the incidence of sooty moulds in fruits. In conclusion, black nylon mesh bags or white paper bags and non-woven bags could be used in high temperature and high humidity areas around Nanning, Guangxi, which could prevent bird pecking and insect damage, or white paper bags and non-woven bags could be used to prolong shelf life. However, it is necessary to clean the mildew after harvest.

Key words: bagging, pitaya fruit, fruit quality

CLC Number: