利用 3-单氯丙二醇酯和缩水甘油酯鉴别冷榨鳄梨油及其精炼变体的掺假情况

IF 1.8 3区 农林科学 Q3 FOOD SCIENCE & TECHNOLOGY
Chia-Chen Wu, Yung-Kun Chuang, Yu-Chi Ho, Zih-Ee Lin, Wei-Ju Lee
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引用次数: 0

摘要

冷榨鳄梨油(AVO)是一种高价值商品,它的掺假会带来重大的经济和健康问题。本研究旨在开发一种鉴别冷榨鳄梨油与精炼油掺假的方法,并利用该方法对商业鳄梨油(cAVO)样本进行评估。对美国和新西兰不同成熟阶段的鳄梨进行烘干和微波烘干,以生产出正宗的内部 AVO。对各种参数进行了测量,包括缩水甘油酯(GE)和 3-单氯丙二醇酯(3-MCPDE)含量、脂肪酸组成、植物甾醇含量、酸值和色素含量。检测结果表明,内部的 AVO 会形成微量的 3-MCPDE,并设定了 0.25 mg kg-1 的 GE 和 3-MCPDE 临界值,以区分掺入精炼油的样本。不过,没有观察到 3-MCPDE 浓度与掺假比率之间有明显的相关性。叶绿素和类胡萝卜素含量的测定有助于鉴别部分或完全掺假。酸值和植物甾醇含量不足以区分掺假情况。GE和3-MCPDE含量可有效用于鉴别冷榨AVO与精炼油的混合物,为检测cAVO产品的虚假陈述提供了一种可靠的方法:测量 GEs 和 3-MCPDEs 对于识别冷榨油中的精炼油掺假至关重要。本研究开发的系统性鉴别方法和标准今后可应用于不同类型的高价值压榨油。解决这一问题对于维护冷榨油行业的真实性和质量至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Using 3-monochloropropanediol esters and glycidyl esters to discriminate adulteration of cold-pressed avocado oils and their refined variants

The adulteration of cold-pressed avocado oil (AVO), a high-value commodity, poses significant economic and health concerns. This study aimed to develop a method for identifying adulteration of cold-pressed AVO with refined oil and its utilization to evaluate commercial AVO (cAVO) samples. Avocados from the United States and New Zealand at different stages of maturity were subjected to oven-drying and microwave-drying to produce authentic in-house AVOs. Various parameters, including glycidyl ester (GE) and 3-monochloropropanediol ester (3-MCPDE) contents, fatty acid composition, phytosterol content, acid value, and pigment contents, were measured. In-house AVOs exhibited trace amounts of 3-MCPDE formation, and a threshold of 0.25 mg kg–1 for GEs and 3-MCPDEs was established to differentiate samples adulterated with refined oil. However, no clear correlation between 3-MCPDE concentrations and adulteration ratios was observed. Determination of chlorophyll and carotenoid contents enabled the identification of partial or complete adulteration. The acid value and phytosterol content did not provide sufficient distinctions for detecting adulteration. GE and 3-MCPDE contents could effectively be used to discriminate cold-pressed AVO blended with refined oil, providing a reliable method for detecting misrepresentation of cAVO products.

Practical Applications: Measuring GEs and 3-MCPDEs is crucial for identifying refined oil adulteration of cold-pressed oils. The systematic discrimination methods and criteria developed in this study can be applied to different types of high-value pressed oils in the future. Addressing this issue is essential for maintaining the authenticity and quality of cold-pressed oils in the industry.

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来源期刊
CiteScore
5.50
自引率
0.00%
发文量
101
审稿时长
6-16 weeks
期刊介绍: The European Journal of Lipid Science and Technology is a peer-reviewed journal publishing original research articles, reviews, and other contributions on lipid related topics in food science and technology, biomedical science including clinical and pre-clinical research, nutrition, animal science, plant and microbial lipids, (bio)chemistry, oleochemistry, biotechnology, processing, physical chemistry, and analytics including lipidomics. A major focus of the journal is the synthesis of health related topics with applied aspects. Following is a selection of subject areas which are of special interest to EJLST: Animal and plant products for healthier foods including strategic feeding and transgenic crops Authentication and analysis of foods for ensuring food quality and safety Bioavailability of PUFA and other nutrients Dietary lipids and minor compounds, their specific roles in food products and in nutrition Food technology and processing for safer and healthier products Functional foods and nutraceuticals Lipidomics Lipid structuring and formulations Oleochemistry, lipid-derived polymers and biomaterials Processes using lipid-modifying enzymes The scope is not restricted to these areas. Submissions on topics at the interface of basic research and applications are strongly encouraged. The journal is the official organ the European Federation for the Science and Technology of Lipids (Euro Fed Lipid).
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