Study on the Development and Functional Characteristics of Salted Egg with Liquid Smoked

Putri Widyanti Harlina1,*, Tri Yuliana1, Fetriyuna Fetriyuna1, Raheel Shahzad2,3, Meihu Ma4
Author Information & Copyright
1Department of Food Industrial Technology, Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Bandung 45365, Indonesia.
2National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
3Department of Biotechnology, Universitas Muhammadiyah Bandung, Bandung 40614, Indonesia, Bandung 40614, Indonesia.
4College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
*Corresponding Author: Putri Widyanti Harlina. E-mail:

© Copyright 2023 Korean Society for Food Science of Animal Resources. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Jan 23, 2023 ; Revised: Feb 13, 2023 ; Accepted: Mar 02, 2023

Published Online: Mar 06, 2023


In this study, the duck eggs were salted with none or 2.5% and 5.0% (v/v) of Liquid Smoke (LS), respectively. As a control, samples salted without LS were used. The TBA values, DPPH radical scavenging ability, and reducing power of the three groups were tested at 0, 7, 14, and 21 and 28 days to determine the effects of LS on the antioxidant activity of treated eggs. In addition, GC-MS and E-Nose were used to analyze the volatile flavor components of fresh duck eggs, LS, control, and salted duck eggs enriched with 2.5% (v/v) LS after 28 days of salting. The TBA value considerably increased with an increase in salting period, and the treated egg's TBA value significantly associated with LS concentration. The TBA value decreased as the LS concentration increased. The amount of LS present was highly associated with their capacity to scavenge DPPH radicals. The reducing power of the samples was substantially correlated with the LS concentration, and the reducing power increased with increasing LS concentration. The GC-MS data revealed that phenols and ketones were the predominant chemicals present in the LS, and they were also found in the eggs added to the LS even though they were absent in the fresh eggs and control. The flavor of the control group and treated eggs with LS differed significantly, according to the PCA and radar map of the E-nose. The texture study results revealed that the LS significantly impacted the hardness, cohesiveness, and chewiness of eggs.

Keywords: Salted egg; Liquid Smoke; Antioxidant Activity; E-Nose; Texture analysis

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