A review on chilling injury and antioxidant metabolism of pineapple (Ananas comosus)

Abstract

Pineapple (Ananas comosus) is an economically significant crop as Malaysia is one of the countries that produce and export pineapples. Improper postharvest management is one of the factors that will adversely affect crop yields. Low-temperature storage is a commonly used postharvest technology to prolong fruit life and maintain its condition. This review is conducted to understand the chilling injury (CI) and antioxidant metabolism in pineapple fruits. CI can be divided into: i) causes and symptoms that appeared on chilled-injured crops, and ii) the mechanism associated with plants injured by chilling temperature while antioxidant metabolism can be divided into; i) mechanism of action and ii) classification of antioxidants. There are two leading theories associated with the source of CI which is membrane variability that relates to fatty acid and reactive oxygen species (ROS) induction. Antioxidants have many benefits, especially to human health and different antioxidants can have different beneficial effects. Understanding the cause, symptoms and action mechanism of CI will contribute to early prevention and proper crop handling practices. CI was also understood to have a correlation with antioxidant metabolism that relates to ROS. This review provides a collection of information and an in-depth understanding of CI and antioxidants in pineapple thus, it is extremely helpful for researchers to create new studies or make further research on existing studies because they can see the shortcomings entirely. Research and studies on CI and antioxidants in pineapple are believed to have prominent economic values.