JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2021
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IF 4.556
Liumin Huang,Jun Li,Yanlan Bi,Yanhui Xu,Yanmei Wang,Jian Wang,Dan Peng
A simple and fast normal-phase high performance liquid chromatography method for simultaneous detection of α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, sesamin, sesamolin, sesamol, and asarinin in sesame oil (SO) was investigated. Conditions were a silica gel column as the separation unit, n -hexane and tetrahydrofuran (93:7, v/v) as the mobile phase, isocratic elution, a flow rate of 0.8 mL/min, column temperature of 30 °C, and florescence detector with excitation and emission wavelengths of 295 and 330 nm. SO samples were directly dissolved in n -hexane for HPLC analysis. Results showed that the method performed wide linear ranges and good linearity (0.27–100.0 μg/mL, R 2 > 0.9996), low limits of detection (0.09–0.16 μg/mL) and quantification (0.27–0.41 μg/mL), good precision and accuracy (biases of <2.83 % and relative standard deviations of <3.77 %), good separation performance [resolution factor (1.66–6.20), separation factor (1.11–3.94), retention factor (1.08–1.42), and height of theoretical plates (0.01–0.04 mm)], and satisfactory recoveries (87.3–109.8 % for SO and 96.5–106.9 % for lard). The method was successfully applied for the simultaneous determination of the eight analytes in eleven SO samples.
研究领域:
食品科学
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分析化学
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高影响因子
JOURNAL OF CHROMATOGRAPHY A
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2025
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IF 4
Mengting Cui,Qingpeng Gao,Jinling Bai,Mengting Fu,Zhiyu Liu,Zhixin Ouyang,Liyun Kong,Le Ma
Conventional extraction techniques for fat-soluble nutrient analysis in foods may present certain limitations, including variable or limited efficiency, high solvent consumption, lengthy procedures, and potential environmental and health concerns. This study evaluates deep eutectic solvents (DESs) as a green and efficient alternative for extracting vitamin E and carotenoids from vegetables and fruits. Conductor-like screening model for real solvents (COSMO-RS) simulation and experimental screening identified the menthol-thymol (1:2) DES as optimal due to the balanced distribution of polar and nonpolar sites within its components. A novel dispersive liquid-liquid microextraction method based on this DES (DES-DLLME) was developed and integrated with HPLC for the simultaneous quantitation of vitamin E and carotenoids. The optimized method demonstrated excellent analytical performance with low detection limits (0.01-0.18 µg/mL), satisfactory recovery rates (80.04-111.95%), and high reproducibility (relative standard deviation, RSD < 16.83%). When applied to a range of Chinese food samples, the obtained nutrient profiles were largely consistent with USDA reference data, with observed variations likely due to factors such as geographic origin, cultivation practices, and post-harvest processing. This DES-based approach offers an efficient, reproducible, and environmentally friendly method for determining fat-soluble vitamins and carotenoids in complex food matrices, offering significant value for food quality assessment and nutritional research.
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PubMed
高影响因子
Food Bioscience
·
2024
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IF 4.8
Linwei Zhao,Donghua Wang,Jiaye Yu,Xu Wang,Tong Wang,Dianyu Yu,Walid Elfalleh
In this study, proanthocyanidins (PA) and α-tocopherol (α-TOC) were co-encapsulated in complex phospholipid liposomes, to improve the chemical stability of PA and α-TOC and the antioxidant properties of the liposomes. The results showed that the liposome had a spherical microstructure with no adhesions. The encapsulation efficiency of PA and α-TOC reached 78.02% ± 2.02% and 81.67% ± 1.25%, respectively, and interacted with the phospholipid bilayer through hydrogen bonding. The addition of hydrogenated soybean lecithin (HSL) conferred better stability to the liposomes and improved their protection against PA and α-TOC. The retention of PA and α-TOC in liposomes remained above 60% after 30 d of storage at 4 °C. Due to the synergistic antioxidant effect of PA and α-TOC, the DPPH radical scavenging activity of PA-TOC-CPL reached 87.52%, which was significantly higher than that of single-embedded PA and α-TOC liposomes. The release of PA and α-TOC from PA-TOC-CPL during simulated digestion was low and the release pattern could be described by the Ritger-Peppas model. This serves as a reference to guide the utilization of HSL and the development of liposomal products with higher antioxidant properties.
研究领域:
药剂学
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食品科学
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生物技术
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高影响因子
Food Chemistry-X
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2024
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IF 6.5
Pengfei Han,Jiawei Cheng,Jingyi Wang,Jingren He,Rui Zhang,Muci Wu,Yin Xiong
The chemical compositions and volatile profiles of wax gourd seed oil (WGSO), watermelon seed oil (WSO), pumpkin seed oil (PSO), cucumber seed oil (CSO), and bitter gourd seed oil (BGSO) were comparatively explored for the first time. All oils complied with standards for physicochemical properties and BGSO had the highest phenolic content. Their mineral levels varied significantly. The fatty acid composition of WGSO, WSO, PSO, and CSO was similar, predominantly linoleic acid. Whereas BGSO exhibited a distinct fatty acid profile with 55.38 % α-eleostearic acid. All samples were rich in tocopherols and squalene, with WSO having the highest total tocopherol content and PSO having the highest squalene content. HS-GC–IMS and HS-SPME-GC–MS detected 118 and 67 VOCs, respectively, primarily consisting of aliphatic aldehydes, alcohols, esters, and ketones. Principal component analysis confirmed that BGSO had the most distinctive volatile characteristics, while the other four seed oils shared similar VOC profiles.
研究领域:
食品科学
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化学
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农业
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分析化学
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Shuo Zou,Hongzeng Ai,Pengkai Xie,Yee-Ying Lee,Ying Huang,Hong Shyang Pei,Mingchen Xu,Yong Wang,Zhen Zhang
A diacylglycerol (DAG)-based microemulsion system was designed and optimized for efficient transdermal delivery. Pseudo-ternary phase diagrams and D-optimal mixture design identified the optimal formulation (6.23 % DAG oil, 21.41 % RH-40, 18.09 % 1,3-propanediol, and 54.27 % water), yielding a transparent and stable microemulsion with a droplet size of 24.43 nm and infinite dilution capacity. The amphiphilic structure of DAG expanded the one-phase microemulsion region and reduced surfactant demand. Physicochemical evaluations confirmed excellent stability under centrifugation, thermal stress, and long-term storage. Molecular dynamics simulations showed that DAG molecules stabilized droplets at the oil–water interface, whereas triacylglycerol clusters destabilized and dispersed, underscoring the structural advantage of DAG. These nanoscale behaviors translated into superior delivery performance: in vitro studies confirmed that DAG-based microemulsions enhanced the drug transdermal permeation by 2.50-fold and increased dermal retention nearly 3.0-fold compared with oil solutions. Confocal imaging further demonstrated intact droplet penetration across skin layers. This work highlight the amphiphilic advantage of DAG in stabilizing microemulsions and facilitating dermal delivery of lipophilic bioactives, offering a promising route for safe, effective, and surfactant-efficient delivery platforms.
研究领域:
药剂学
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药物递送
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纳米技术
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分子模拟
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透皮治疗
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PubMed
高影响因子
ULTRASONICS SONOCHEMISTRY
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2021
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IF 7.491
Wenjiang Dong,Qiyu Chen,Changqing Wei,Rongsuo Hu,Yuzhou Long,Ying Zong,Zhong Chu
In this study, ultrasonic/microwave-assisted extraction (UMAE), microwave-assisted extraction (UAE), ultrasound-assisted extraction (UAE), and pressurized liquid extraction (PLE) were applied to extract green coffee oil (GCO), and the physicochemical indexes, fatty acids, tocopherols, diterpenes, and total phenols as well as antioxidant activity of GCO were investigated and compared. The results indicated that the extraction yield of UMAE was the highest (10.58 ± 0.32%), while that of PLE was the lowest (6.34 ± 0.65%), and linoleic acid and palmitic acid were the major fatty acids in the GCO, ranging from 40.67% to 43.77% and 36.57% to 38.71%, respectively. A large proportion of fatty acids and phytosterols were not significantly influenced by the four extraction techniques. However, tocopherols, diterpenes, total phenols, and the free radical scavenging activity were significantly different among these four GCOs. Moreover, structural changes in the coffee residues were explored by scanning electron microscopy and Fourier transform infrared spectroscopy. Overall, the high antioxidant activity of GCO demonstrated that it can be used as a highly economical natural product in the food and agricultural industries.
研究领域:
食品科学
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农业化学
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分析化学
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PubMed
高影响因子
Foods
·
2022
·Vol. 11
·期 12
·1698
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IF 5.561
Pan Gao,Yunpeng Ding,Zhe Chen,Zhangtao Zhou,Wu Zhong,Chuanrong Hu,Dongping He,Xingguo Wang
This study was the first time the effects of pretreatment technology (microwave roasting, MR; oven roasting, OR; steaming roasting, SR) and processing technology (screw pressing, SP; aqueous enzymatic extraction, AEE; subcritical butane extraction, SBE) on the quality (physicochemical properties, phytochemical content, and antioxidant ability) of walnut oil were systematically compared. The results showed that the roasting pretreatment would reduce the lipid yield of walnut oil and SBE (59.53–61.19%) was the processing method with the highest yield. SR-AEE oil provided higher acid value (2.49 mg/g) and peroxide value (4.16 mmol/kg), while MR-SP oil had the highest content of polyunsaturated fatty acid (73.69%), total tocopherol (419.85 mg/kg) and total phenolic compounds (TPC, 13.12 mg/kg). The DPPH-polar and ABTS free radicals’ scavenging abilities were accorded with SBE > AEE > SP. SBE is the recommended process for improving the extraction yield and antioxidant ability of walnut oil. Hierarchical cluster analysis showed that processing technology had a greater impact on walnut oil than pretreatment technology. In addition, multiple linear regression revealed C18:0, δ-tocopherol and TPC had positive effects on the antioxidant ability of walnut oil, while C18:1n-9, C18:3n-3 and γ-tocopherol were negatively correlated with antioxidant activity. Thus, this a promising implication for walnut oil production.Keywords:walnut oil;pretreatment;processing;subcritical butane extraction;steaming roasting
研究领域:
食品科学
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植物化学
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PubMed
高影响因子
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
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2021
·Vol. 124
·期 4
·2100135
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IF 2.679
Sheng Zhou,Yuxiu Wen,Yiting Duan,Qi Li,Yuan Gao,Xiuzhu Yu
To develop new high-nutrient oil resources, eight Xanthium sibiricum seeds (XSs) are used as raw materials for the preparation of oil. The properties, chemical composition, and free radical scavenging capacity of XS oils (XSOs) are evaluated in this study. The characteristics of XSOs from different regions are also compared and analyzed. Results show that XSOs contains a high content of unsaturated fatty acids (up to 90.90%). XSOs are rich in phytochemicals, such as tocopherols (consisting of α-, β-, and γ-tocopherols) and phytosterols (including β-sitosterol, campesterol, and stigmasterol). The contents of phytochemicals and free radical scavenging capacity in XSOs from Gansu are higher than those in other regions. Furthermore, the free radical scavenging capacities of XSOs are significantly ( p < 0.05) affected by some minor components, especially in α-tocopherol. XSOs generally have high nutritional value, and they could be used as a new alternative to nut oil. Practical applications : The excellent chemical composition and functional properties of XSOs indicate that it could be used as a new edible oil through proper processing. Due to its high proportion of unsaturated fatty acids, XSOs is expected to become a functional oil for preventing cardiovascular and cerebrovascular diseases. XSOs could also be developed as a new low-cost “nut oil” with similar characteristics and higher active substance content.
研究领域:
食品科学
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营养学
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高影响因子
危险品化学品经营许可证（带存储）