This study aims to investigate the effect of 24-epibrassinolide (EBR) on the metabolism in relation to development of chilling injury-induced pulp browning of eggplant fruit. The fruits were dipped for 10 min in solutions containing 10 μmM EBR and then stored at 1 °C for 15 days. Chilling injury index, weight loss, electrolyte leakage and malondialdehyde (MDA) content of control fruit increased during storage. Chilling injury improved phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO), and peroxidase (POD) activities, which are correlated with the increase of total phenolic content and pulp browning of eggplant fruit. The inhibition of pulp browning by EBR treatment was possibly attributed to preserving the cell membrane integrity, reducing total phenolic content, and decreasing PAL, PPO, and POD activities. These results suggest that EBR may inhibit chilling injury and pulp browning in eggplant fruit during cold storage.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4444923PMC
http://dx.doi.org/10.1007/s13197-014-1402-yDOI Listing

Publication Analysis

Top Keywords

pulp browning
20
browning eggplant
12
eggplant fruit
12
chilling injury
12
relation development
8
pod activities
8
total phenolic
8
phenolic content
8
pulp
5
browning
5

Similar Publications

Pectin blended with cellulose nanofiber (CNF) sourced from wood pulp has excellent potential for modified atmosphere packaging (MAP), as demonstrated with refrigerated or sliced fruits enclosed in parchment coated with pectin-CNF composites. Addition of sodium borate (NaB) augments the antioxidant capacity of the composite, most likely through the generation of unsaturated pectic acid units. Packaging materials coated with pectin-CNF-NaB composites demonstrate better humidity regulation in refrigerated spaces over a 3-week period relative to uncoated controls (50% less variation), with improved preservation of strawberries as well as a reduction in the oxidative browning of sliced apples.

View Article and Find Full Text PDF

Foxing of Watercolor Paper and Environmental Control as Preventive Actions.

Chempluschem

December 2024

Nanyang Technological University, School of Chemistry, Chemical Engineering and Biotechnology, SINGAPORE.

In Singapore's hot and humid climate, watercolor papers are particularly prone to a paper oxidation issue known as foxing, which refers to the discoloration forming yellowish-brown stains on paper, changing the visual outcome of the watercolor artworks. This research investigates two most popular types of watercolor paper, made from 100% cotton and cotton-wood-pulp mixture. Foxing was generally categorized into two types: biotic and abiotic foxing caused by fungi activities and the presence of metallic contaminants catalytic fungi growth.

View Article and Find Full Text PDF

Cellulose nanocrystals (CNC) receive great attention for their physical and optical properties, high surface area, high tensile strength, rigidity (Young's modulus up to 140 GPa), and ease of surface modification. However, controlling the properties of CNC is still challenging, given the wide variety of pulp sources and the complexity of finding suitable processing conditions. In the present study, acid hydrolysis efficiently isolated CNC from wood brown kraft pulp (AMKP).

View Article and Find Full Text PDF

Unveiling the structural properties of three pectin fractions variation affecting pulp browning during peach processing.

Carbohydr Polym

February 2025

Institute of Food Science and Technology, CAAS, Key Laboratory of Agri-Products Processing, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing 100193, China. Electronic address:

Peach ripening accompanying by processing browning exacerbated has not been clarified in perspective of pectin fractions structural variation. This study investigated pectin fractions of water-soluble (WSP), trans-cyclohexane-1,2-diaminetetraacetic acid-soluble (CSP) and sodium carbonate-soluble (NSP) pectin in peach with different ripening times (24, 48, 72 h) and pretreatments (cold shock, CaCl2, the combination) effect on pulp browning in processing. Results showed that extended ripening time increases browning index and rate, along with increased reactive oxygen species levels, polyphenol oxidase and pectinase activities, and the structural of the pectin fractions.

View Article and Find Full Text PDF

Low voltage electrostatic field combined with ice-temperature to improve the quality of litchi during storage.

Food Res Int

November 2024

Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, China. Electronic address:

Litchi is popular among consumers due to its delicious taste, however, the extremely short shelf life limits its commercial value. Few studies have been conducted to develop new technologies to extend the shelf life of litchi. Therefore, this study applied a novel technique (low voltage electrostatic field, LVEF) combined with ice-temperature (0 °C) treatment on litchi and evaluated its quality characteristics during storage.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!