Oil and Lipid: Study on Physicochemical Property, Nutritional Composition and Sensory Profile

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Physics and (Bio)Chemistry".

Deadline for manuscript submissions: closed (10 December 2023) | Viewed by 2701

Special Issue Editor


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Guest Editor
Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430061, China
Interests: techniques of lipidomics; bioinformatics for lipidomics; lipid chemistry and nutrition; detection of oil adulteration

Special Issue Information

Dear Colleagues,

Some plants store energy in their seeds in the form of fat, commonly called oil in its liquid state. Oil is a more concentrated energy source (9 kcal/g) than carbohydrates (4 kcal/g). Oil and fat are important nutrients in a healthy diet. The main components of oil (over 90%) are lipids. Lipids include monoacylglycerides, diacylglycerides, triacylglycerides, phospholipids, sterols, terpenes, fatty alcohols, carotenoids, fat soluble vitamins, etc. The functions of lipids involve storing energy, signaling, and acting as structural components of cell membranes. In addition, the most important feature for oil is the sensory profile. The oil product must meet consumer preferences, otherwise it cannot be sold. Although some reports have examined the relationship between oil flavor composition and the resulting sensory profile, this topic and related studies are still worthy of further study.

This Special Issue will focus on oil and related innovative research. We invite submissions of unpublished research and reviews on the physicochemical property, nutritional composition, sensory profile, and other related subjects based on oil and lipids.  

Prof. Dr. Xiupin Wang
Guest Editor

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Keywords

  • oil
  • lipid
  • sensorial properties
  • physical/chemical properties
  • nutritional composition

Published Papers (2 papers)

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Research

15 pages, 1390 KiB  
Article
Discrimination between the Triglyceride Form and the Ethyl Ester Form of Fish Oil Using Chromatography–Mass Spectrometry
by Mingxuan Liu, Yuchong Liu and Xiupin Wang
Foods 2024, 13(7), 1128; https://doi.org/10.3390/foods13071128 - 08 Apr 2024
Viewed by 883
Abstract
Although the triglyceride form is the natural form of fish oil found in fish, the ethyl ester form of fish oil, which is used during processing to save costs, is also present on the market. In this study, fatty acids and lipids were [...] Read more.
Although the triglyceride form is the natural form of fish oil found in fish, the ethyl ester form of fish oil, which is used during processing to save costs, is also present on the market. In this study, fatty acids and lipids were determined using gas chromatography–mass spectrometry (GC–MS) and liquid chromatography–linear ion trap mass spectrometry (LC–LIT/MS), respectively, according to developed methods. The identification of fatty acids was based on the mass spectral characteristics and equivalent chain lengths. However, the fatty acid contents of both forms of fish oils are quite similar. The application of the LC–LIT/MS method for the structural characterization of triacylglycerols (TAGs) and the mechanism of LIT/MS fragmentation are also discussed. Neutral losses of CH2=CH2 (m/z 28) and CH3CH2OH (m/z 46), which are LIT/MS characteristics of ethyl ester from fish oil, were found for the first time. The triglyceride form of fish oils was easily and accurately identified using fingerprint chromatography. In conclusion, lipid analysis combined with LC–LIT/MS showed an improved capability to distinguish between types of fish oil. Full article
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12 pages, 4322 KiB  
Article
Influence of Nitrogen-Modified Atmosphere Storage on Lipid Oxidation of Peanuts: From a Lipidomic Perspective
by Xia Ma, Wenhao Li, Huayang Zhang, Peng Lu, Pengxiao Chen, Liang Chen and Chenling Qu
Foods 2024, 13(2), 277; https://doi.org/10.3390/foods13020277 - 16 Jan 2024
Viewed by 1162
Abstract
The effect of nitrogen-modified atmosphere storage (NS) on peanut lipid oxidation was investigated in this paper. Non-targeted lipidomics was employed to detect the lipid metabolites in peanuts with the aim of exploring the mechanism of lipid oxidation in peanuts under different storage conditions. [...] Read more.
The effect of nitrogen-modified atmosphere storage (NS) on peanut lipid oxidation was investigated in this paper. Non-targeted lipidomics was employed to detect the lipid metabolites in peanuts with the aim of exploring the mechanism of lipid oxidation in peanuts under different storage conditions. The results showed that compared with conventional storage (CS), NS significantly (p < 0.05) delayed the increase in acid value, carbonyl value, and 2-thiobarbituric acid value and the decrease in vitamin E content. However, the storage time has a much greater effect on lipid oxidation than the oxygen level in the storage environment. Lipidomics analysis revealed that there were significant differences in metabolite changes between CS and NS. NS reduced the decline of most glycerophospholipids by regulating lipid metabolism in peanuts. NS maintained higher levels of Diacylglycerol (DAG), sulfoquinovosyl diacylglycerol (SQDG), lysophophatidylcholine (LPC), lysophosphatidylethanolamine (LPE) and phosphatidylinositol (PI) compared to CS. This work provided a basis for the application of NS technology to peanut storage. Full article
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