Effect of Oxygen Concentration on the Biochemical and Chemical Changes of Stored Longan Fruit

Abstract

Longan fruits were stored for 6 days in atmosphere of 5, 21 (air) PRACTICAL APPLICATIONSPericarp browning and pulp breakdown are the major causes of deterioration in postharvest longan. Conventional controlled atmosphere with low O 2 and high CO 2 is effective in maintaining quality and extending shelf life of fruits and vegetables, including inhibition of tissue browning. In this study, 5%-controlled atmosphere reduced significantly pericarp browning, pulp breakdown and rot development. It could potentially be useful as a postharvest technology of longan fruit for reducing or replacing the use of chemicals such as SO 2 and fungicides, but it requires further investigation.

Comparison of Various Packaging Films for Mango Export

“…This is probably due to the benefit of modified atmosphere conditions. Several previous studies reported that modified atmospheres maintained high phenolic contents, such as a storage of longan fruit 28 and banana. 29 However, the HNPE pack, which had similar modified atmospheres, maintained total phenolics at lower concentrations as compared with the HNP.…”

Postharvest Quality Maintenance of Longan Fruit by Ultra Violet-C Incorporated with Salicylic Acid Application

“…However, the rapid deterioration of the fruit after harvest involving pericarp browning, fruit rot and pulp breakdown is the main factor reducing its shelf-life and marketing value (Jiang et al, 2002;Duan et al, 2007). It is widely recognized that pericarp browning of longan fruit after harvest has mainly been attributed to oxidation of phenolic compounds and browning enzymes such as polyphenol oxidase, phenylalanine ammonia lyase and peroxidase (Jiang 1999;Duan et al, 2007;Cheng et al, 2009). Moreover, as containing high sugars and moisture content, rapid growth of yeasts and fungi after harvest results to fruit rot which is a main postharvest problem of longan fruit.…”

Evaluation of cold resistance of ornamental species for planting as urban rooftop greening

“…In plant tissues, there is considerable accumulation of MDA material during membrane lipid peroxidation. The permeability of membranes increases and the relative conductivity of cytoplasm rises, leading to severe damage of cell membranes (Chen and Xu, 1998;Nakamura et al, 2004;Fu et al, 2006;Zhang et al, 2007;Cha-um et al, 2009;Cheng et al, 2009;Alsup et al, 2010). In our experiment on conductivity in a low temperature environment, -23°C, leaves gradually showed symptoms of frost injury over time, such as water stains.…”