INDUSTRIAL CROPS AND PRODUCTS
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2024
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IF 5.6
Weikang Shen,Haobo Wang,Zhouzhe Lan,Guangzhi Xu,Qinxue Ni,Qiufen Mo,Youzuo Zhang,Yan Wang
Gardenia fruit oil (GFO) is a new emerging edible woody oil with few investigations of its’ refinement process. In this study, different degumming, deacidification and bleaching technologies were introduced for realizing moderate refining of the GFO based on the preservation of bioactive micronutrients. Firstly, a simple multi-stage solid phase extraction (SPE) combined with a lab- affordable HPLC-UV instrument was developed for determinations of several vital biological constituents, such as crocetin, geniposide, polyphenols, phytosterols and squalene in the GFO. Satisfactory limit of detection (LOD), limit of quantification (LOQ), recovery, intra-day and inter-day precision were obtained. Subsequently, changes of those phytochemicals during three types of degumming, followed by three kinds of deacidification and then three ways of bleaching were investigated, offering insightful suggestions for achieving moderate refining of the GFO. Finally, the refined GFO might be suggested as a potential functional edible oil with valuable micronutrients. To our knowledge, this is the first study investigating moderate refinement techniques for GFO, as well as developing novel methods for phytonutrients analysis in the GFO.
研究领域:
食品科学
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分析化学
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植物化学
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产品关联
DOI
高影响因子
Food Analytical Methods
·
2023
·Vol. 16
·期 4
·689-698
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IF 2.9
Chu Qiqi,Wu Xinze,Chen Huaixia,Dang Xueping,Liu Xiaolan
A Cu 7 Zn 2 cluster functionalized copolymer monolithic column was prepared and applied as the adsorbent of pipette tip micro-solid phase microextraction of eight phthalate esters (PAEs). The physical morphology, chemical composition, thermal stability, and specific surface area of the monolithic column were characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis, and N 2 adsorption and desorption experiment. Cu 7 Zn 2 cluster acted as the adsorption site effectively improved the adsorption selectivity and capacity of the copolymer monolith for PAEs. The adsorption mechanism of Cu 7 Zn 2 copolymer monolith for 8 PAEs was deduced to be mainly the H-bond interaction. And, the chemical doping and copolymerization of Cu 7 Zn 2 cluster made the composite monolithic column more stable with a long service life. Under the optimized extraction conditions, a micro-solid phase extraction-high performance liquid chromatography method with ultraviolet detector (μ-SPE-HPLC-UV) was developed for the determination of 8 PAEs in edible oil. Wide linear ranges of 0.5–1000 μg/kg with correlation coefficients ( R 2 ) above 0.996 were obtained. The limits of detection (LODs) were in the range of 0.1–0.9 μg/kg. The proposed method was applied for the detection of 8 PAEs in edible oil with satisfactory recoveries between 83.5~100.2%, and the relative standard deviations were less than 8.1%. The results indicated that the Cu 7 Zn 2 functionalized copolymerized monolithic column was an ideal enrichment medium for the detection of PAEs in complex samples.
研究领域:
分析化学
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环境科学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
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2026
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IF 4
Xueyun Wei,Lanrui Yang,Zhuomin Zhang,Gongke Li
Trace disinfection by-products (DBPs) in aquatic products may have serious impact on human health via direct or indirect consumption. However, the accurate and sensitive quantification of trace chlorophenol DBPs in complex aquatic products still remains a great challenge. In this work, the defective MIL-101(Fe)-NH 2 enrichment medium was prepared for developing a selective membrane solid phase extraction (M-SPE) technology for quantifying trace chlorophenol DBPs in fish, coupled with high performance liquid chromatography-ultraviolet-visible spectroscopy (HPLC-UV). The established analytical method showed good selectivity, sensitivity and accuracy, achieving the limits of detection from 0.03 to 0.15 ng/mL and the recovery from 80.0% to 117%, achieving sensitivity comparable to that of HPLC-mass spectrometry (MS)-based methods. The validated method was successfully applied to quantify chlorophenol DBPs in grass carp and crucian carp, offering a selective and sensitive alternative for monitoring chlorophenol DBPs in fish, with practical advantages for routine analysis via compatibility with widely available HPLC-UV.
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DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
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2018
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IF 3.716
Sijie Zheng,Man He,Beibei Chen,Bin Hu
A melamine-based porous organic polymer (mPMF) was synthesized as solid phase extraction (SPE) adsorbent for inline SPE-high performance liquid chromatography (HPLC)-ultraviolet detector (UV) analysis of five phytohormones. Melamine contributed to the rich π-electron and N-containing triazine structure for mPMF, which could form π-π interaction and intermolecular hydrogen bond with COOH containing phytohormones. The synthesized mPMF adsorbent shows extremely high extraction efficiency for five target analytes (>80%) including salicylic acid, indole-3-acetic acid, abscisic acid, 2,4-dichlorophenoxyacetic acid and 1-naphthalene acetic acid. The factors affecting extraction of the target phytohormones were investigated and the optimized experimental conditions were established. The linear range was 0.2–100 μg/L with the limits of detection in the range of 0.06–0.11 μg/L for five target phytohormones. The developed method of mPMF-inline-SPE-HPLC-UV was applied for the analysis of trace target phytohormones in tomato and grape juice samples, and the recovery in the range of 83.1–116% and 87.2–121% was obtained for the spiked tomato and grape juice, respectively. This method has the advantages of high sensitivity and good reproducibility, and it has good application potential for the analysis of phytohormones in fruit samples. Moreover, inline analysis avoided the problems of sample pollution and sample loss, and provided a sample throughput of 5/h.
研究领域:
分析化学
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植物科学
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食品科学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）