Fabricating a high-loading smart film to monitor pork freshness via adsorption of anthocyanins on simultaneously etched, anionized and bleached wood cell wall.
Food Chem
; 460(Pt 1): 140485, 2024 Dec 01.
Article
in En
| MEDLINE
| ID: mdl-39047493
ABSTRACT
In this paper, wood cell walls were simultaneously roughened, carboxylated, and bleached via NaOH/H2O2 treatment and roughened-poplar film (RPF) was obtained. Compared with the untreated film, the carboxyl group content increased 8 times to 1.92 mmol/g, and the pore growth rate reached 11.24%. Afterwards, a pH-indicator wood film (CTA-RPF) was prepared by self-adsorption of anthocyanins on RPF. It rapidly changed from purple to green within 7 s in 0.25 mL of ammonia at 53% RH and the initial color could restore in the air. When anthocyanins adsorption capacity reached 1.95 mg/g, only 0.36 cm2 of the film could accurately indicate the quality change of 300 g pork. Currently, CTA-RPF is the smallest smart film that can track the maximum mass of pork after comparing with other researches, therefore, promising to be used as a smart indicator label to track the freshness of pork in real market circulation.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Wood
/
Cell Wall
/
Anthocyanins
Limits:
Animals
Language:
En
Journal:
Food Chem
Year:
2024
Document type:
Article
Country of publication:
United kingdom