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RESEARCH ARTICLE

Physicochemical and sensory characteristics of dry-cured loin made from pigs fed Allium hookeri added whey powder and sensory trait evaluation using electronic tongue

Ji-Han Kim A , Jung-Ho Kim A , Hyun-Joo Jang A , Hyun-Jin Lee A and Chi-Ho Lee B
+ Author Affiliations
- Author Affiliations

A Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Republic of Korea.

B Corresponding author. Email: leech@konkuk.ac.kr

Animal Production Science 59(1) 191-200 https://doi.org/10.1071/AN17032
Submitted: 19 January 2017  Accepted: 17 August 2017   Published: 15 January 2018

Abstract

The aim of this study was to determine the effect of dietary supplementation with Allium hookeri (A. hookeri) added whey powder on the physicochemical characteristics of dry-cured loin (CON, basal diet; AH, addition of 1% A. hookeri; AHW, addition of 0.5% A. hookeri and 4% whey powder) during manufacturing (pre- and post-salting, drying and ripening process) and analyse their sensory characteristics using electronic tongue. Crude fat and weight yield of AH were higher (P < 0.05) than those of CON. The AH inhibited (P < 0.05) lipid oxidation and the reduction of redness during manufacturing. The percentage of some free amino acids (tyrosine, methionine, phenylalanine, isoleucine and leucine) in AHW was higher (P < 0.05) compared with those in CON. Monounsaturated fatty acid composition was the highest (P < 0.05) in AHW. Sensory evaluation by panellists did not show significant differences among the three groups (CON, AH and AHW). However, the richness of AH and AHW was significantly higher compared with that of CON based on electronic tongue analysis. Taken together, these results revealed that AH supplementation with whey powder had higher oxidative stability and enhanced dry-cured loin quality.

Additional keywords: Allium species, dry-cured meat product, electronic tongue, meat quality.


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