Effects of storage temperatures and packaging films on the physiological quality and storage life of seablite leaves

Journal article

Authors/Editors

Strategic Research Themes

Publication Details

Author list: Prakaidao YINGSANGA;Pongphen Jitareerat;Tanwalee Srinon;Kanlaya Sripong;Naruemol Piyasatienrat

Publication year: 2025

Volume number: 21

Issue number: 1

Start page: 363

End page: 380

Number of pages: 18

URL: https://li04.tci-thaijo.org/index.php/IJAT/article/view/2096

Languages: English-Australia (EN-AU)

Abstract

Seablite (Saaeda maritima L.) is a local plant that grows only in coastal areas; it is used to cook various Thai dishes. The popularity of seablite consumption continues to increase rapidly. However, the major postharvest problems are the yellowing and decaying of leaves, leading to a short shelf life due to a lack of information on suitable storage temperature and packaging. Therefore, this research aimed to investigate the appropriate storage temperature and packaging film for seablite. Two experiments were conducted. First, the effect of storage temperatures on the physiological quality of seablite was investigated. Leave samples were kept in perforated polyethylene (PPE) film and stored at 25 (control), 13, and 4 ºC. The result revealed that 4ºC was the best storage temperature to reduce weight loss, respiration rate, ethylene production, chlorophyll breakdown, yellowing of leaves, and decaying. In contrast, the soluble pectin was not different from the control. The storage life at 4ºC was 24 days, whereas at 13 and 25ºC were 12 and 4 days, respectively. Second, the effect of packaging films on the physiological quality of seablite during storage at 4ºC for 28 days was evaluated. Seablite was kept in polypropylene (PP) and low-density polyethylene (PE) films compared to the PPE film (control). The result showed that leaves kept in a PP film had a significantly lower percentage of yellowing and decaying leaves, weight loss, respiration rate, and ethylene production than those kept in PE and PPE films, respectively. In contrast, there was a non-significant in the antioxidant capacity and soluble pectin content among all film types. Low oxygen concentration inside the package was found in the PP film compared to PE and PPE films. This result suggests that seablite should be kept in a PP film at 4°C, and storage life can be extended to 28 days.

Keywords

No matching items found.