Effect of hydrogen sulfide(H₂S) fumigation on quality of passionfruit (Passiflora edulis sims)

¹ College of Food and Biological Engineering/Institute of Food Science and Engineering Technology, Hezhou University, Hezhou 542899, Guangxi, China
² Agro-food Science and Technology Research Institute, Yunnan Academy of Agricultural Science, Kunming 650205, Yunnan, China

^* Corresponding author: Liang Shuai, shuailiang1212@163.com; Ling yan Liao, sparrow0716@163.com;
^# Yun Fen Liu and Zhen Hong Guo contributed equally to this work.

Abstract

In order to investgate the effects of H₂S on the quality of cold-storage passion fruit, fresh harvested fruits were treated with different concentrations of H₂S(0 mmol/L, 1 mmol/L, 2 mmol/L, 3 mmol/L), packaged with BOPP plastic wrap and placed into 5±1°C for 35 days. Samples were randomly selected and at 7-days interval during cold storage, compared the preservation effect of different concentrations of H₂S. The results indicated that the fruits with 2 mmol/LH₂S treatment have better chroma and lower weight loss rate, and soluble solid content, titratable acidity, vitamin C, sugar were preserved at higher level than that of control fruits during storage time. These results showed that 2 mmol/LH₂S treatment could maintain the quality of passion fruit during cold storage.