Effect of oligosaccharides derived from Laminaria japonica-incorporated pullulan coatings on preservation of cherry tomatoes

卷:199

Wu, Shengjun ; Lu, Mingsheng ; Wang, Shujun

Huaihai Inst Technol

关键词: Laminaria japonica;    Pullulan;    Oligosaccharides;    Cherry tomato;   

DOI  :  10.1016/j.foodchem.2015.12.029

学科分类：食品科学和技术

【 摘 要 】

Laminaria japonica-derived oligosaccharides (LJOs) exhibit antibacterial and antioxidant activities, and pullulan is a food thickener that can form impermeable films. The ability of pullulan coatings with various LJO concentrations (1% pullulan + 0.1%, 0.2% or 0.3% LJOs) to preserve cherry tomatoes during storage at room temperature was investigated. The LJO-incorporated pullulan coatings were found to effectively reduce respiratory intensity, vitamin C loss, weight loss and softening, as well as to increase the amount of titratable acid and the overall likeness of fruit compared with the control. These effects were observed to be dose-dependent. Therefore, using LJO-incorporated pullulan coatings can extend the shelf life of cherry tomatoes. (c) 2015 Elsevier Ltd. All rights reserved.