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Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology

In this study, flaxseed was pretreated by steam explosion technology and subsequently pressed to prepare flaxseed oil. GC, UPLC, HPLC, and GC‐MS techniques were used to analyze the quality characteristics of the prepared flaxseed oil. These included the food safety risk indices, micronutrient compon...

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Autores principales: Yu, Gaiwen, Guo, Tingting, Huang, Qingde, Shi, Xunwang, Zhou, Xin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7174238/
https://www.ncbi.nlm.nih.gov/pubmed/32328278
http://dx.doi.org/10.1002/fsn3.1505
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author Yu, Gaiwen
Guo, Tingting
Huang, Qingde
Shi, Xunwang
Zhou, Xin
author_facet Yu, Gaiwen
Guo, Tingting
Huang, Qingde
Shi, Xunwang
Zhou, Xin
author_sort Yu, Gaiwen
collection PubMed
description In this study, flaxseed was pretreated by steam explosion technology and subsequently pressed to prepare flaxseed oil. GC, UPLC, HPLC, and GC‐MS techniques were used to analyze the quality characteristics of the prepared flaxseed oil. These included the food safety risk indices, micronutrient components, and oxidative stability. The effects of different steam explosion pressures on the quality characteristics and relative volatile components of flaxseed oil were also investigated. The results revealed that steam explosion pretreatment technology could significantly increase the oil yield, improve micronutrient content, and strengthen the oxidation stability of the product. Moreover, the food safety risk indices (e.g., benzopyrene) were controlled within a reasonable range, while the fatty acid content remained almost unchanged. Notably, the relative pyrazine content in the total volatile components of flaxseed oil was 68.25% when the steam explosion pressure reached 1.2 MPa. This was considered as the main factor that contributed to the unique concentrated fragrance of the produced flaxseed oil. To prove the superiority of the steam explosion pretreatment, we compared this technique with traditional high‐temperature roasting and popular microwave pretreatment techniques. The results revealed that flaxseed oil prepared by steam explosion pretreatment displayed the best quality characteristics and most concentrated fragrance. Thus, steam explosion technology shows great potential for application to produce high‐quality concentrated fragrance flaxseed oil. This study provides significant reference and guidance for the preparation process of flaxseed oil.
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spelling pubmed-71742382020-04-23 Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology Yu, Gaiwen Guo, Tingting Huang, Qingde Shi, Xunwang Zhou, Xin Food Sci Nutr Original Research In this study, flaxseed was pretreated by steam explosion technology and subsequently pressed to prepare flaxseed oil. GC, UPLC, HPLC, and GC‐MS techniques were used to analyze the quality characteristics of the prepared flaxseed oil. These included the food safety risk indices, micronutrient components, and oxidative stability. The effects of different steam explosion pressures on the quality characteristics and relative volatile components of flaxseed oil were also investigated. The results revealed that steam explosion pretreatment technology could significantly increase the oil yield, improve micronutrient content, and strengthen the oxidation stability of the product. Moreover, the food safety risk indices (e.g., benzopyrene) were controlled within a reasonable range, while the fatty acid content remained almost unchanged. Notably, the relative pyrazine content in the total volatile components of flaxseed oil was 68.25% when the steam explosion pressure reached 1.2 MPa. This was considered as the main factor that contributed to the unique concentrated fragrance of the produced flaxseed oil. To prove the superiority of the steam explosion pretreatment, we compared this technique with traditional high‐temperature roasting and popular microwave pretreatment techniques. The results revealed that flaxseed oil prepared by steam explosion pretreatment displayed the best quality characteristics and most concentrated fragrance. Thus, steam explosion technology shows great potential for application to produce high‐quality concentrated fragrance flaxseed oil. This study provides significant reference and guidance for the preparation process of flaxseed oil. John Wiley and Sons Inc. 2020-03-18 /pmc/articles/PMC7174238/ /pubmed/32328278 http://dx.doi.org/10.1002/fsn3.1505 Text en © 2020 The Authors. Food Science & Nutrition published by Wiley Periodicals, Inc. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Yu, Gaiwen
Guo, Tingting
Huang, Qingde
Shi, Xunwang
Zhou, Xin
Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology
title Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology
title_full Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology
title_fullStr Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology
title_full_unstemmed Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology
title_short Preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology
title_sort preparation of high‐quality concentrated fragrance flaxseed oil by steam explosion pretreatment technology
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7174238/
https://www.ncbi.nlm.nih.gov/pubmed/32328278
http://dx.doi.org/10.1002/fsn3.1505
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