Evidence map›Paper›PMID 42863178›Full record

ArticlePoultry science2026

GREEN DISCOLORATION OF FATTENED GOOSE LIVER Factors and mechanisms influencing green discoloration in vacuum-packed frozen fattened goose liver.

Koppány L Majzinger, Gábor Jónás, Karina I Hidas, Anna Visy, Vilmos Lehota, Zsuzsanna Mednyánszky, Zsuzsanna Jókai-Szatura, László F Friedrich

Abstract read
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In one paragraph

Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Koppány L MajzingerHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Livestock Product and Food Preservation Technology, Ménesi road 43-45, Building 'D', Budapest, 1118, Hungary.
Gábor JónásHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Livestock Product and Food Preservation Technology, Ménesi road 43-45, Building 'D', Budapest, 1118, Hungary. Electronic address: jonas.gabor@uni-mate.hu.
Karina I HidasHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Livestock Product and Food Preservation Technology, Ménesi road 43-45, Building 'D', Budapest, 1118, Hungary.
Anna VisyHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Livestock Product and Food Preservation Technology, Ménesi road 43-45, Building 'D', Budapest, 1118, Hungary.
Vilmos LehotaHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Livestock Product and Food Preservation Technology, Ménesi road 43-45, Building 'D', Budapest, 1118, Hungary.
Zsuzsanna MednyánszkyHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Food Chemistry and Nutrition, Somlói road 14-16, Building 'L', Budapest, 1118, Hungary.
Zsuzsanna Jókai-SzaturaHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Food Chemistry and Analytical Chemistry, Villányi road 29-43, Building 'G', Budapest, 1118, Hungary.
László F FriedrichHungarian University of Agriculture and Life Sciences, Buda Campus, Institute of Food Science and Technology, Department of Livestock Product and Food Preservation Technology, Ménesi road 43-45, Building 'D', Budapest, 1118, Hungary.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Surface discoloration, particularly green discoloration in vacuum-packed frozen fattened goose liver, is a common quality defect, adversely affecting product acceptability. Therefore, the aim of the study was to investigate the effects of evisceration timing and frozen storage on green discoloration (Trial I), and to use controlled chemical induction models to assess potential contribution of sulfhemoglobin formation (Trial II). Force-fed male Greylag Landaise geese (n=60) were randomly selected and allocated to two experimental groups. After slaughter and initial processing, 50% of the birds were immediately eviscerated. Remaining half of the carcasses was eviscerated after 8 h cooling. Hemoglobin content was determined. Livers were vacuum-packed, frozen, color was measured. Livers were stored at -18°C for 35 d. Surface color was measured every 7 d. After storage, elemental analysis was conducted, amino acid profile analysis was performed and hydrogen sulfide was investigated. Artificial induction of green discoloration was attempted. Results of Trial I showed that under conditions of study, surface color was significantly affected by evisceration timing (P<0.001). Liver surface removed by cold evisceration turned green by 21 d. Elemental analysis resulted in significant difference (Fe, K and Mn). Amino acid analysis did not reveal significant differences. Hydrogen sulfide was confirmed in greened livers. Artificial induction of surface greening (Trial II) was successfully executed by application of H

Indexed as

CIELab colorimetryEviscerationFrozen storageHydrogen sulfideSulfhemoglobin

Identifiers

PMID42863178
PMCPMC13681975

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.