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

Shengjun Wu; Mingsheng Lu; Shujun Wang

doi:10.1016/j.foodchem.2015.12.029

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

Food Chem. 2016 May 15:199:296-300. doi: 10.1016/j.foodchem.2015.12.029. Epub 2015 Dec 8.

Authors

Shengjun Wu¹, Mingsheng Lu¹, Shujun Wang²

Affiliations

¹ Jiangsu Marine Resources Development Research Institute, Lianyungang, Jiangsu 222005, China; School of Marine Science and Technology, Huaihai Institute of Technology, 59 Cangwu Road, Xinpu, 222005, China; Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Huaihai Institute of Technology, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Huaihai Institute of Technology, Lianyungang 222005, China.
² Jiangsu Marine Resources Development Research Institute, Lianyungang, Jiangsu 222005, China; School of Marine Science and Technology, Huaihai Institute of Technology, 59 Cangwu Road, Xinpu, 222005, China; Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Huaihai Institute of Technology, Lianyungang 222005, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Huaihai Institute of Technology, Lianyungang 222005, China. Electronic address: wangsjhhit@163.com.

PMID: 26775974
DOI: 10.1016/j.foodchem.2015.12.029

Abstract

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.

Keywords: Cherry tomato; Laminaria japonica; Oligosaccharides; Pullulan.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Ascorbic Acid / analysis
Dose-Response Relationship, Drug
Food Preservation / methods*
Fruit / microbiology
Glucans / chemistry*
Glucans / pharmacology*
Laminaria / chemistry*
Oligosaccharides / pharmacology*
Solanum lycopersicum / drug effects*

Substances

Glucans
Oligosaccharides
pullulan
Ascorbic Acid