JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
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2021
·Vol. 102
·期 1
·250-258
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IF 3.639
Rui Liu,Hengye Chen,Shuo Wang,Liuna Wei,Yongjie Yu,Wei Lan,Jian Yang,Lanping Guo,Haiyan Fu
BACKGROUND Sesame oil has an excellent flavor and is widely appreciated. It has a higher price than other vegetable oils because of the high price of its raw materials, and different processing techniques also result in products of different quality levels, which can command different prices. In the market, there is a persistent problem of adulteration of sesame oil, driven by economic interests. The screening of volatile markers used to distinguish the authenticity of sesame oil raw materials and production processes is therefore very important. RESULTS In this work, six markers related to the production processes and raw materials of sesame oil were screened by gas chromatography–tandem mass spectrometry (GC-MS/MS) combined with chemometric analysis. They were 3-methyl-2-butanone, 2-ethyl-5-methyl-pyrazine, guaiacol, 2,6-dimethyl-pyrazine, 5-methyl furfural, and ethyl-pyrazine. The concentration of these markers in sesame oil is between 10 and1000 times that found in other vegetable oils. However, only 3-methyl-2-butanone and 2-ethyl-5-methyl-pyrazine differed significantly as the result of the use of different production processes. Except for guaiacol, which was mainly derived from raw materials, the other five compounds mentioned above all result from the Maillard reaction during thermal processing. The six compounds mentioned above are sufficient to distinguish fraud involving sesame oil raw materials and production processes, and can identify accurately adulteration levels of 30% concentration. CONCLUSION In this study, the classification markers can identify the adulteration of sesame oil accurately. These six compounds are therefore important for the authenticity of sesame oil and provide a theoretical basis for the rapid and accurate identification of the authenticity of sesame oil. © 2021 Society of Chemical Industry.
研究领域:
食品科学
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分析化学
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DOI
PubMed
高影响因子
FOOD CONTROL
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2022
·
IF 6.652
Mengying Wang,Yuepeng Lu,Yong Yang,Jiahao Yu,Yechao Chen,Fengqin Tu,Jing Hou,Zong Yang,Xiaoming Jiang
Recently, we found that vanillin commonly exists in sesame oils, while vanillin compounds are not allowed to be used as food additives in edible vegetable oils according to Chinese standards for Food Additives (GB2760-2014). To trace the source of vanillin in sesame oil, an accurate and reliable method was developed and validated for the determination of vanillin, methyl vanillin and ethyl vanillin in sesame samples based on high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The limit of determination (LOD) and limit of quantification (LOQ) of the established method were in the range of 17.4–33.1 and 52.2–99.2 μg kg −1 , respectively. The calibration curves of the three vanillin compounds exhibited good linearity between 0 and 400 ng mL −1 , with a high correlation coefficient greater than 0.999. The recoveries ranged from 91.7% to 112%, with a low relative standard deviation (RSD) less than 5.55%. Then this method was applied for the detection of sesame seed and intermediate samples. The results showed that all samples contained vanillin in a concentration range of 382–3804 μg kg −1 , while methyl vanillin and ethyl vanillin were not detected in those samples. Hence, the vanillin in sesame oil may originate from its raw materials, indicating that vanillin was not a good detection marker for illegal addition of flavor enhancers in sesame oils.
研究领域:
分析化学
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食品安全
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食品科学
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高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2019
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IF 2.994
Yan Liu,Zhenzhen Xia,Liyun Yao,Yang Wu,Yan Li,Shan Zeng,Hao Li
Near-infrared spectroscopy (NIRS) combined with chemometric methods were used to discriminate the sesame oils from different Chinese provinces and determinate the lignans (sesamin and sesamolin) in these sesame oils. The geographic discriminant model was constructed by principal component analysis (PCA) combining with linear discriminant analysis (LDA), and the quantitative analysis models of lignans were built using partial least squares (PLS) regression. Multiplicative scatter correction (MSC) and competitive adaptive reweighted sampling (CARS) were adopted to optimize the regression models. It was found that the discriminant model could recognize the sesame oils from different Chinese provinces correctly, and the contents of sesamin and sesamolin calculated from the optimized models and high-performance liquid chromatography (HPLC) analysis are rather close. Reasonable results proved the feasibility of near-infrared spectroscopy (NIRS) combined with chemometric methods for geographic origin of sesame oils and quantitate analysis of lignans in sesame oils.
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 Cleaner Production
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2021
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IF 9.297
Jing Ni,Zhi Cui,Can Wu,Jingbo Sun,Jiangheng Zhou
Cutting fluid could improve the machining efficiency and reduce the energy consumption during broaching process. However, the commercial cutting fluids (CCF) contain harmful constituents causing various environmental threats. Vegetable oil based nanofluids , which contain nanoparticles in the environmentally friendly vegetable oils, could be regarded as a potential alternative for cutting fluids. In this paper, the best concentrations of three sesame oil-based nanofluids containing Fe 3 O 4 , Al 2 O 3 , Carbon nanoparticles respectively were obtained. Then, the experiments on broaching AISI 1045 steel under MQL lubrication were conducted. The results showed that nanofluid (total weight:30 g) containing 160 mg Carbon produced the best lubricating effect. Its reduction of the average broaching load peak and load valley were 725 N and 614 N, which were 115.7%, 118.5% higher than those of CCF. And its root mean square error (RMSE) of broaching vibration signal was 36.15% lower than CCF. Also, the best surface quality was obtained. Cost analysis for the application of nanofluids is done in the present work. The sesame oil-based Carbon nanofluid (160 mg) has both environmental and efficient benefits for industrial application.
研究领域:
机械工程
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环境科学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
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2021
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IF 2.727
Lipeng Han,Jiahui Li,Shujie Wang,Weiwei Cheng,Lukai Ma,Guoqin Liu,Dongxue Han,Li Niu
Glycidyl ester (GE) has attracted worldwide attention due to its potential harm to human health. The GE in edible oil forms during the deodorization process of the oil refining, where antioxidants are used to inhibit its formation. To replace unsafe conventional synthetic antioxidants with natural antioxidants, sesame oil (SO) was used to inhibit the formation of GE in corn oil (CO), palm oil (PO), and rice bran oil (RO) during the deodorization process. The results showed that the content of GE in SO, CO, PO and RO followed the decreasing order of RO (1395.88 μg/kg) > PO (376.84 μg/kg) > CO (303.24 μg/kg) > SO (133.19 μg/kg). The concentration of diacylglycerol (DAG) in SO, CO, PO and RO followed the decreasing order of RO (11.64%) > PO (7.56%) > CO (4.11%) > SO (2.59%). The content of GE in oil could be affected by at least three factors: (i) unsaturated fatty acids could promote the formation of GE in oil; (ii) antioxidants in oil could inhibit the formation of GE by scavenging free radicals; and (iii) DAG, as a precursor, could lead to the formation of GE. This result suggested that SO could inhibit the formation of GE in CO, PO and RO. This indicated that when SO was added at 50%, its inhibitory effect was equivalent to that of tert-butylhydroquinone added at 0.02%.
研究领域:
食品科学
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健康与医学
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DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2021
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IF 4.952
Qiong Yu,Yu-Xiang Ma,Zhao Qin,Xiao-Rong Luo,Hua-Min Liu,Xue-De Wang
The application of cold - pressed sesame oil (CSO) in the food industry is limited by its weak oxidative stability. The objective was to improve the oxidative stability of CSO by using different solid acid catalysts (SACs) with heat. The effects of SACs on the physicochemical properties, lignan content, oxidative stability and antioxidant capacity of oil samples were investigated. The different oil samples were: CSO without catalyst or heat (L); CSO without catalyst but with heat (CK); and CSO treated with four different SACs, namely hydrogen beta zeolite (Hβ), citric acid (CA), CA loaded on Hβ (CA/Hβ), 12-tungstophosphoric acid (PA) and PA loaded on Hβ (PA/Hβ). In the oil samples treated with SACs, the content of sesamin and sesamolin decreased significantly, and the content of asarinin and sesamol increased accordingly. The oxidative stability and antioxidant capacity of the oil samples Hβ, CA/Hβ and PA/Hβ were significantly enhanced (P < 0.05). The characterization of SACs showed that CA and PA were distributed uniformly inside the framework of Hβ. In summary, using SACs with heat effectively converted lignan into asarinin and sesamol, and enhanced the oxidative stability of CSO. This information should be useful for exploring the potential industrial applications of CSO.
研究领域:
食品科学
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催化
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化学工程
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油脂技术
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高影响因子
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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DOI
高影响因子
Advanced Composites and Hybrid Materials
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2020
·Vol. 3
·期 4
·473-484
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IF 0
Wang Yaqing,Xie Wenhao,Liu Hu,Gu Hongbo
Three-dimensional (3D) porous network materials with large pore volume, high specific surface area, and controllable porosity have potential application in wastewater treatment. This work aims to develop a novel hyperelastic and ultra-light magnetic reduced graphene oxide (rGO-Fe 3 O 4 ) 3D framework with a density of 4.52 mg cm −3 through a covalent bond of aminated nanomagnetite (Fe 3 O 4 -NH 2 ) onto graphene oxide (GO) and subsequent reduction. This 3D framework exhibited high adsorption capacities to ethyl acetate (215.8 ± 11.8 g g −1 ), cyclohexane (239.7 ± 9.9 g g −1 ), acetone (149.1 ± 6.5 g g −1 ), dichloromethane (308.0 ± 16.4 g g −1 ), and sesame oil (204.7 ± 10.2 g g −1 ), which were much higher than those of pure rGO aerogel (45.6 ± 2.3 g g −1 to ethyl acetate). Meanwhile, the 3D framework demonstrated superelastic mechanical properties with a 100% recoverability during the cyclic compression loading tests under an optimal fabrication condition of 1 mg mL −1 GO concentration and 3:1 mass ratio of GO to Fe 3 O 4 -NH 2 nanoparticles. Most importantly, this rGO-Fe 3 O 4 3D framework could achieve an effective oil/water separation within only 25 s and maintained an outstanding adsorption capability to ethyl acetate after 10 cycles of the adsorption/desorption process without any obvious change, depicting an excellent recyclability and reusability. This work aims to provide a promising material for environmental control and oil/organic solvent adsorption. Graphical abstract Hyperelastic and ultra-light magnetic reduced graphene oxide 3D frameworks demonstrate a superb oil and organic solvent adsorption capacity.
研究领域:
环境科学
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材料科学
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化学工程
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CELLULAR AND MOLECULAR LIFE SCIENCES
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2024
·Vol. 81
·期 1
·1-24
·
IF 6.2
Hong Ling,Xiao Shan,Diao Lianghui,Lian Ruochun,Chen Cong,Zeng Yong,Liu Su
Polycystic ovary syndrome (PCOS) is a complex common endocrine disorder affecting women of reproductive age. Ovulatory dysfunction is recognized as a primary infertile factor, however, even when ovulation is medically induced and restored, PCOS patients continue to experience reduced cumulative pregnancy rates and a higher spontaneous miscarriage rate. Hyperandrogenism, a hallmark feature of PCOS, affects ovarian folliculogenesis, endometrial receptivity, and the establishment and maintenance of pregnancy. Decidualization denotes the transformation that the stromal compart of the endometrium must undergo to accommodate pregnancy, driven by the rising progesterone levels and local cAMP production. However, studies on the impact of hyperandrogenism on decidualization are limited. In this study, we observed that primary endometrial stromal cells from women with PCOS exhibit abnormal responses to progesterone during in vitro decidualization. A high concentration of testosterone inhibits human endometrial stromal cells (HESCs) decidualization. RNA-Seq analysis demonstrated that pyruvate dehydrogenase kinase 4 (PDK4) expression was significantly lower in the endometrium of PCOS patients with hyperandrogenism compared to those without hyperandrogenism. We also characterized that the expression of PDK4 is elevated in the endometrium stroma at the mid-secretory phase. Artificial decidualization could enhance PDK4 expression, while downregulation of PDK4 leads to abnormal decidualization both in vivo and in vitro. Mechanistically, testosterone excess inhibits IGFBP1 and PRL expression, followed by phosphorylating of AMPK that stimulates PDK4 expression. Based on co-immunoprecipitation analysis, we observed an interaction between SIRT1 and PDK4, promoting glycolysis to facilitate decidualization. Restrain of AR activation resumes the AMPK/SIRT1/PDK4 pathway suppressed by testosterone excess, indicating that testosterone primarily acts on decidualization through AR stimulation. Androgen excess in the endometrium inhibits decidualization by disrupting the AMPK/SIRT1/PDK4 signaling pathway. These data demonstrate the critical roles of endometrial PDK4 in regulating decidualization and provide valuable information for understanding the underlying mechanism during decidualization.
研究领域:
生殖内分泌学
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分子生物学
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细胞生物学
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内分泌学
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DOI
PubMed
高影响因子
JOURNAL OF STORED PRODUCTS RESEARCH
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2025
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IF 2.8
Jing Gao,Qi Guo,Jun Zhang,Jiahui Li,Peiya Wang
The co-occurrence of AFB 1 , AFB 2 , AFG 1 , and AFG 2 in mold-contaminated feed suggests a significant contribution of A. parasiticus to aflatoxin contamination in feed. In contrast to A. flavus , research on the effects of A. parasiticus growth and aflatoxin production is limited. This study aims to investigate the factors influencing the growth and aflatoxin production by A. parasiticus , as well as to analyze the interactions among these factors utilizing response surface methodology. The results will be compared with relevant studies on A. flavus , ultimately contributing to the development of a comprehensive strategy for the prevention of aflatoxin contamination. The findings indicated that both A. parasiticus and A. flavus used sugar as an initial substrate to produce aflatoxins. The substrate preference of A. parasiticus was not changed due to differences in nutrient content in different feeds. The mineral Mn was found to suppress aflatoxin production by both fungi, whereas glucose, sucrose, and Zn stimulated production. Temperature and water activity levels effective against A. flavus may not be equally effective for A. parasiticus . The optimum storage conditions were for temperature and water activity below 10 °C and 0.85 at the same time. Although chemical pesticides may comply with regulatory limits in feed, certain pesticides and their interactions could increase the risk of aflatoxin contamination during feed storage. Hence, a comprehensive evaluation of factors influencing both fungi is imperative to prevent aflatoxin contamination effectively.
研究领域:
食品科学
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微生物学
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毒理学
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DOI
高影响因子
JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY
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2026
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IF 3.1
Han Yang,Bingyi Luo,Wenwen Zhang,Lin Wang,Wei Yi
Dehydroepiandrosterone (DHEA)-induced rodent models are widely used in polyendocrine metabolic ovarian syndrome (PMOS; formerly polycystic ovary syndrome [PCOS]) research, yet their reproducibility is limited by substantial methodological variability. While rats are often reported to exhibit diestrus arrest, mouse studies describe estrus-dominant or mixed-stage arrest, differences frequently attributed to species effects; however, heterogeneity in experimental design may also contribute. We synthesized 25 published DHEA-induced rodent studies and characterized estrous-cycle dynamics in a C57BL/6 model using one commonly used DHEA protocol. Key methodological variables—including induction age, DHEA brand and solvent, dosage, administration duration, smear-sampling timing, and cytological criteria—were extracted and examined using a semi-quantitative comparative approach. Estrous-arrest patterns were compared across methodological subgroups to formulate provisional, evidence-informed recommendations. Substantial variability in estrous-arrest patterns was identified across studies, although subgroup differences were not statistically significant. Approximately 60% of C57BL/6 studies reported estrus-dominant arrest when DHEA was administered at 6 mg/100 g body weight, sesame oil was used as the solvent, and induction began before postnatal day 28. Our experiment confirmed that the selected protocol can produce estrus-dominant arrest, but it did not compare alternative doses, solvents, induction ages, or sampling schedules. Directional trends suggested that DHEA dosage, solvent type, and induction age may contribute to estrous outcomes. Overall, methodological factors may contribute substantially to estrous-cycle variability in DHEA-induced mouse models; however, the available evidence does not establish them as dominant or causal determinants. These findings identify candidate methodological contributors and support provisional recommendations to improve reporting and cross-study comparability, while direct comparative experiments integrating endocrine and ovarian endpoints remain necessary for validation.
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高影响因子
CELLULAR & MOLECULAR BIOLOGY LETTERS
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2026
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IF 12.2
Xiaoxuan Zhao,Yang Zhao,Yuepeng Jiang,Yiming Ma,Jing Ma,Hongli Zhao,Xiaoling Feng
Background Unexplained recurrent spontaneous abortion (URSA) is characterized by defective endometrial stromal cell decidualization, with cellular senescence emerging as a key contributor. However, the metabolic–epigenetic mechanisms linking glycolysis to senescence-driven decidualization failure remain unclear. This study elucidates how hexokinase 2 (HK2)-mediated glycolytic reprogramming promotes histone lactylation-dependent stromal senescence and decidualization impairment in URSA. Methods We employed multi-omics profiling (RNA-seq, metabolomics, and CUT&Tag) of primary stromal cells from patients with URSA and controls to map the histone H3K18 lactylation (H3K18la)–cut-like homeobox 1 (CUX1)–senescence-associated secretory phenotype (SASP) axis. Subsequently, this axis was validated both in vitro decidualization models and URSA murine models. Results Decidual tissues from patients with URSA exhibited stromal cell senescence and impaired decidualization. Mechanistically, HK2-driven glycolysis elevated lactate production, which in turn promoted H3K18la at the CUX1 promoter. CUX1 then directly activated the transcription of key SASP factors, thereby propagating the senescence state. Critically, CUX1 depletion or glycolysis inhibition rescued these senescence and decidualization deficiency in vitro. Furthermore, CUX1 knockdown in the URSA murine model reduced stromal senescence and improved decidualization. Conclusions Our findings define a novel HK2–H3K18la–CUX1–SASP signaling axis that drives URSA pathogenesis by linking metabolic reprogramming with epigenetic regulation. This work highlights CUX1 as a potential therapeutic target for correcting decidualization deficiency in URSA. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1186/s11658-026-00879-y.
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PubMed
高影响因子
危险品化学品经营许可证（带存储）