Publication Date:
2021-05-19
Description:
Silver carp (Hypophthalmichthys molitrix) minced (SCM), as ready-to-cook and high nutritious
product, can successfully introduce to consumers and significantly dissolves current problems of
limited demand for whole/fresh market. Short shelf-life is one of the most important barriers to
developing industrial production of minced fish. Application of Hurdle technology with minimally
processing to improve storage life of fresh seafood has become increasingly popular. The main
objective of this study was to compare the effects of lowring temperature (3-5 oC), Modified
Atmosphere Packaging (MAP) (condition 50:5:45 for N2:O2:CO2) and Green Tea Extract (GTE) (1000
ppm) with normal or Aerobic packaging (AP), on the chemical and sensory characteristics of SCM
within refrigerated storage. Total polyphenolic compounds measured in GTE was 14.33±0.88 µg/ml.
Results of Peroxide Value showed that all treatments can effectively protect SCM against oil
oxidation, compared with AP, after 4 days. Using MAP and/or GTE treatments reduced the Free Fatty
Acids (FFAs) formation ratio, because, in contrast with AP treatment, FFAs increased significantely
(P〈0.05), only after 16 days storage. Thiobarbitoric Acid Reactive Substances (TBARS) of AP
samples in 16th days was 2.51±0.21 mg that was upper than accepted limits. Effects of GTE treatment
on TBARS increasing was not significantly different compared with AP. pH trends were ascending
and GTE and MAP treatments had no significant effects on pH increasing. According to sensory
evaluation, MAP had higher total quality score compared with GTE treatment and showed no
significant difference with MAP+TE during storage, suggested that MAP more effectively retards
and/or inhibits microbial growth in refrigerated SCM.Combined treatment (MAP+GTE) was selected
as an effective method that can extend the shelf-life of SCM up to 4 days at refrigerated storage.
Description:
Published
Keywords:
Silver carp minced
;
Shelf-Life
;
Modified Atmosphere Packaging
;
Green Tea Extract
;
Refrigerated Storage
;
Hypophthalmichthys molitrix
Repository Name:
AquaDocs
Type:
Journal Contribution
,
Refereed
Format:
pp.13-27
