A comparative study of fatty acid content in yolk of native eggs and ordinary eggs available in the market | [Pakistan Journal of Zoology • 2020]

Author(s):

1. Su-Hu Duan: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

2. Liu-An Li: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

3. Zai-Qiang Li: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

4. Meng-Ran Qin: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

5. Zhen-Zhen Fan: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

6. Qian Wang: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

7. Ke-Yan Zhang: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

8. Zhong-Mou Zhang: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

9. Bai-Liang Yang: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

10. Tian-Ming Jin: Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University,Tianjin 300384,China

Abstract:

In this test, gas chromatographic method was used to determine the fatty acid content of ordinary eggs and native eggs of brands A, B and C. The results indicate that: In the test samples, totally 7 types of SFA, 7 types of MUFA, and 8 types of PUFA were detected. Specifically, no significant difference was found in the content of C14:0~C18:0 (P>0.05). The content of C16:0 in the yolk of both native eggs and ordinary eggs was high; in the yolk of native eggs of the three brands, the content of C14:1 and C16:1 was both significantly higher than that of ordinary eggs (P<0.05); the content of C17:1 in yolk of native eggs of brand A was significantly higher than that of brand C native eggs (P<0.05); the content of C18: 2n6t and C20:2 in yolk of ordinary eggs and brand C eggs was significantly higher than that of brand A and B native eggs (P<0.05); the content of C18:2n6c in yolk of ordinary eggs was significantly higher than that of brands A and C native eggs (P<0.05); the content of C22:6n3 in yolk of ordinary eggs was significantly higher than that of brand A native eggs (P<0.05); there was no significant difference in ω-6/ω-3 PUFA ratio of yolk of ordinary eggs and native eggs of three brands (P>0.05). The study provides theoretical and practical reference for customers for selection of eggs.

Page(s): 1039-1044

DOI: 10.17582/journal.pjz/20190910030916

Published: Journal: Pakistan Journal of Zoology, Volume: 52, Issue: 3, Year: 2020

Keywords:

fatty acid , Native eggs , Ordinary eggs , Yolk , Content comparison

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