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Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica)
Kelp (Laminaria japonica) is an important marine resource with low cost and rich nutrition. However, its fishy odor has compromised consumer acceptance. In this study, the effects of fermentation with Lactobacillus plantarum FSB7, Pediococcus pentosaceus CICC 21862 and Saccharomyces cerevisiae SK1.0...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623561/ https://www.ncbi.nlm.nih.gov/pubmed/34828815 http://dx.doi.org/10.3390/foods10112532 |
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author | Zhu, Wenyang Jiang, Bo Zhong, Fang Chen, Jingjing Zhang, Tao |
author_facet | Zhu, Wenyang Jiang, Bo Zhong, Fang Chen, Jingjing Zhang, Tao |
author_sort | Zhu, Wenyang |
collection | PubMed |
description | Kelp (Laminaria japonica) is an important marine resource with low cost and rich nutrition. However, its fishy odor has compromised consumer acceptance. In this study, the effects of fermentation with Lactobacillus plantarum FSB7, Pediococcus pentosaceus CICC 21862 and Saccharomyces cerevisiae SK1.008 on fishy notes in kelp was studied using gas chromatography-mass spectrometry (GC-MS), gas chromatography-ion mobility spectrometry (GC-IMS) and odor activity values (OAVs). Forty-four volatile organic compounds (VOCs) were identified in unfermented kelp, most of which were aldehydes, followed by alkanes, alcohols and ketones. Among them were 19 volatile compounds with OAV greater than one. Substances containing α,β-unsaturated carbonyl structure (1-Octen-3-one, (E,Z)-2,6-nonadienal, (E,E)-2,4-decadienal, etc.) are the main contributors to kelp fishy odor. The number of VOCs in kelp samples fermented by L. plantarum, P. pentosaceus and S. cerevisiae were decreased to 22, 24 and 34, respectively. GC-IMS shows that the fingerprint of the S. cerevisiae fermented sample had the most obvious changes. The disappearance of 1-octen-3-one and a 91% decrease in unsaturated aldehydes indicate that S. cerevisiae was the most effective, while L. plantarum and P. pentosaceus only reached 43–55%. The decrease in kelp fishy notes was related to the decrease in α,β-unsaturated carbonyl groups. The experimental results show that odor reduction with fermentation is feasible. |
format | Online Article Text |
id | pubmed-8623561 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86235612021-11-27 Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica) Zhu, Wenyang Jiang, Bo Zhong, Fang Chen, Jingjing Zhang, Tao Foods Article Kelp (Laminaria japonica) is an important marine resource with low cost and rich nutrition. However, its fishy odor has compromised consumer acceptance. In this study, the effects of fermentation with Lactobacillus plantarum FSB7, Pediococcus pentosaceus CICC 21862 and Saccharomyces cerevisiae SK1.008 on fishy notes in kelp was studied using gas chromatography-mass spectrometry (GC-MS), gas chromatography-ion mobility spectrometry (GC-IMS) and odor activity values (OAVs). Forty-four volatile organic compounds (VOCs) were identified in unfermented kelp, most of which were aldehydes, followed by alkanes, alcohols and ketones. Among them were 19 volatile compounds with OAV greater than one. Substances containing α,β-unsaturated carbonyl structure (1-Octen-3-one, (E,Z)-2,6-nonadienal, (E,E)-2,4-decadienal, etc.) are the main contributors to kelp fishy odor. The number of VOCs in kelp samples fermented by L. plantarum, P. pentosaceus and S. cerevisiae were decreased to 22, 24 and 34, respectively. GC-IMS shows that the fingerprint of the S. cerevisiae fermented sample had the most obvious changes. The disappearance of 1-octen-3-one and a 91% decrease in unsaturated aldehydes indicate that S. cerevisiae was the most effective, while L. plantarum and P. pentosaceus only reached 43–55%. The decrease in kelp fishy notes was related to the decrease in α,β-unsaturated carbonyl groups. The experimental results show that odor reduction with fermentation is feasible. MDPI 2021-10-21 /pmc/articles/PMC8623561/ /pubmed/34828815 http://dx.doi.org/10.3390/foods10112532 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhu, Wenyang Jiang, Bo Zhong, Fang Chen, Jingjing Zhang, Tao Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica) |
title | Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica) |
title_full | Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica) |
title_fullStr | Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica) |
title_full_unstemmed | Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica) |
title_short | Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp (Laminaria japonica) |
title_sort | effect of microbial fermentation on the fishy-odor compounds in kelp (laminaria japonica) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623561/ https://www.ncbi.nlm.nih.gov/pubmed/34828815 http://dx.doi.org/10.3390/foods10112532 |
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