Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7584044 | Food Chemistry | 2019 | 34 Pages |
Abstract
Inhibition of Pacific white shrimp polyphenoloxidase (PPO) with Chamuang leaf extract (CLE) was studied. CLE was rich in polyphenolic glycosides, in which chrysoeriol 6-C-glucoside-8-C-arabinopyranoside and 2-feruloyl-l-sinapoylgentiobiose were dominant. It also contained organic acids including hydroxycitric acid and oxalosuccinic acid. CLE with copper chelation activity could inhibit PPO in a dose dependent manner. Shrimp treated with 1% CLE had the lower melanosis score than 1.25% sodium metabisulfite (SMS) treated shrimp and the control throughout the refrigerated storage of 12â¯days at 4â¯Â°C (Pâ¯<â¯0.05). Lower total volatile base (TVB) and thiobarbituric acid reactive substances (TBARS) were detected in shrimp treated with 1% CLE, compared to others (Pâ¯<â¯0.05). Lower counts of mesophile, psychrophile, Pseudomonas, Enterobacteriaceae and H2S-producing bacteria were obtained with 1% CLE treatment than the control and SMS treated sample during entire storage. Thus, soaking of shrimps in 1% CLE solution effectively reduced melanosis and quality deterioration.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Khursheed Ahmad Shiekh, Soottawat Benjakul, Thanasak Sae-leaw,