Food Science & Nutrition
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2018
·Vol. 6
·期 8
·2020-2027
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IF 1.521
Hong Fu,Mengqi Li,Ruimin Ni,Yangming Martin Lo
Two different fish oil preparations, namely triglycerides and ethyl esters containing, respectively, 30.02% and 74.38% of omega-3 fatty acids, were employed as the substrates for transesterification. Catalyzed by immobilized lipase using imidazolium-based ionic liquid systems, the total content of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in the resulting triglyceride reached 63.60% when 4% hydrophobic ionic liquid was used, which was 11.74% higher than that of the triglyceride produced in a solvent-free reaction system. The activation energy of the product (triglyceride-type fish oil) was 173.64 KJ mol −1 , which was not significantly different from that of the commercial ethyl ester-type fish oil, so were the other thermal oxidative kinetic parameters. The kinetic parameters depicting the thermal and oxidative stability of the fish oil product provide the basis for industrial processing, storage, and applications.
研究领域:
生物化学
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可持续生产
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食品科学
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
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2024
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IF 8.5
Pengkai Xie,Yuxin Wu,Yee-Ying Lee,Yong Wang,Zhen Zhang
The major lipids and antioxidant activities of Asterias rolleston gonad lipids were evaluated systematically. Major lipids of A. Rolleston gonad lipids were triacylglycerols (TAGs) and phospholipids (PLs). Total lipids were composed of 15.62% of polyunsaturated fatty acids (PUFAs), and 40.81% of monounsaturated fatty acids (MUFAs). The most abundant PUFA were C20:5n-3 (EPA) (6.28%) and C22:6n-3 (DHA) (5.80%). Predominantly composed of phosphatidylcholine (PC) and phosphatidylethanolamine (PE), polar lipids were rich in PUFAs and could contain up to 34.59% EPA and DHA , and PE and PI (phosphatidylinositol) were also found to be the main carriers of EPA and ARA (arachidonic acid) in polar lipids. The MUFA and PUFA of Sn -2 in TAG are 39.72% and 30.37%, respectively. A total of 64 TAG species were identified, with Eo-P-M, Eo-Eo-M, and M-M-Eo being the main TAGs components. Moreover, A. rollestoni gonad lipids exhibited potent radical scavenging activities and reducing power in a dose-dependent manner.
研究领域:
海洋生物学
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营养学
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食品科学
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DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2019
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IF 3.714
Xi Cao,Linmeng Liao,Fengqin Feng
Lipase catalysis has become the most promising technique for enrichment of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) due to its mild and green conditions. In this study, Trichosporon sp. F1-2 was newly isolated from oil-contaminated sludge, and its extracellular lipase was purified using ammonium sulfate precipitation and DEAE-Sepharose chromatography. The molecular weight of the lipase was estimated to be 32.6 kDa. The optimal temperature and pH for lipase activity were 50 °C and 8.0, respectively, and the optimal storage conditions were found to be temperatures below 45 °C and pH 7.0–9.0. The lipase did not require metal ions as cofactors and was significantly inhibited by Zn 2+ . It was stable in various organic solvents with different log P values, and n-hexane, toluene, dichloromethane, diethyl ether and glycerol even enhanced its activity. It had sn -1,3 regioselectivity and the highest activity towards a medium-chain fatty acid (C8) ester. This study demonstrated the lipase has good potential as a catalyst in enrichment of EPA and DHA in fish oil. The content of EPA and DHA reached 22.9 and 25.4 mol%, respectively, using 100 U of the lipase within 24 h, and the enrichment efficiency of DHA was higher than that of EPA.
研究领域:
生物技术
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酶学
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食品科学
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DOI
高影响因子
PLoS One
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2025
·Vol. 20
·期 7
·e0313233
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IF 2.6
Muyao Ding,Hongyu Ma,Hui Du,Yinglong Yang,Min Yu,Cong Zhang
DEHP is the most widely used plasticizer in many products. However, growing evidence has indicated that DEHP may induce neurotoxicity. DEHP exposure affects mircoRNAs (miRNAs) expression in brain. A growing body of evidence suggests that nutrients and other bioactive food components prevent neurotoxicity through regulation of miRNA expression. Due to the increasing concern about the risks of DEHP to human health, we explored the neuroprotective effect of Omega-3 fatty acid (Omega-3FA) on subchronic DEHP-induced neurotoxicity in mice, and the potential involved miRNAs and their targets in the protective action of Omega-3FA against DEHP-induced neurotoxicity. Omega-3FA protected against the DEHP-induced impairment of learning and memory and alleviated the thinning of postsynaptic density (PSD) thickness in hippocampal synapses. We observed that there are fourteen up or down regulated miRNAs associated PSD in DEHP exposure which were normalized by Omega-3FA treatment. Protein targets in PSD of these differentially expressed miRNAs were predicted. Furthermore, the expression levels of protein mGluR5, Homer1, and NMDAR2B were carried out via Western blot, for further verifying PSD associated miRNAs’ targets are involved in neuroprotection of Omega-3FA against DEHP. These findings suggested that Omega-3FA protected DEHP-induced impairment of learning and memory as well as synaptic structure alteration in the hippocampus by regulating the expression of PSD associated miRNAs and their targets. Thus, Omega-3FA should be included in diet to prevent or suppress neurotoxicity caused by continuous exposure to DEHP.
研究领域:
神经科学
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毒理学
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营养学
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分子生物学
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药理学
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DOI
PubMed
高影响因子
Bioanalysis
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2025
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IF 1.8
Xu Yan,Shuang Wang,Ying Li,Li Cui,Zhitu Zhu,Haiwen Liu,Lu Wang,Yanru Zhu,Furong Zhao,Ping Yang
Aims Omega-3 (n-3) and omega-6 (n-6) polyunsaturated fatty acids (PUFAs) are indispensable for human health. Notably, imbalanced levels of maternal PUFAs during pregnancy can exert lasting impacts on the developing fetus. There is an urgent need for a robust and rapid method that can simultaneously quantify multiple n-3 and n-6 PUFAs in plasma and adapt to large-scale clinical screening.Methods Sample preparative process consisted of non-derivatized alkali hydrolyzing and liquid–liquid extraction followed by reconstituting after being blown dry with nitrogen, and the total chromatographic run time was only 5.6 min.Results The LC-MS/MS method was validated according to current national and international guidelines. Acceptable reproducibility and accuracy were shown based on the intra-day precision was 1.79%–7.02%, the inter-day precision was 0.01%–5.63%, and the accuracy was 87.42%–102.78%. The correlation coefficients of linearity were >0.9930. All measured plasma individual PUFAs levels in pregnant women significantly increased, apart from eicosapentaenoic acid (EPA, C20:5n3) and n-6/n-3 PUFA ratio levels decreased were observed. The analysis performance is satisfactory and suitable for clinical routine detection.Conclusion This method could be a valuable tool for 10 kinds of n-3 and n-6 PUFAs nutritional assessment, supplementary guidance, and intervention during pregnancy.
研究领域:
临床医学
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营养学
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DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2022
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IF 5.895
Gao-Shang Wang,Hong-Yu Chen,Guang-Xin Feng,Yang Yuan,Zhi-Li Wan,Jian Guo,Jin-Mei Wang,Xiao-Quan Yang
Omega-3 polyunsaturated fatty acids (n-3 FAs) are essential nutrients and are considered effective in improving human health. Recent studies highlight the importance of the combination of n-3 FAs and polyphenols for limiting the oxidation of n-3 FAs and exhibiting synergistic beneficial effects. Herein, we developed a novel formulation technology to prepare oleogels that could be used for the codelivery of n-3 FAs and polyphenols with high loading efficacy and oxidative stability. These oleogels are made from algal oil with polyphenol-enriched whey protein microgel (WPM) particles as gelling agents via simple and scalable ball milling technology. The oxidative status, fatty acid composition, and volatiles of protein oleogels during accelerated storage were systematically assessed by stoichiometry and gas chromatography–mass spectrometry. These results showed that protein oleogels could overcome several challenges associated with the formulation of n-3 oils, including long-term oxidative stability and improved sensory and textural properties. The protein oleogel system could provide an excellent convenience for formulating multiple nutrients and nutraceuticals with integrating health effects, which are expected to be used in the care of highly vulnerable populations, including children, the elderly, and patients.
研究领域:
食品科学
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营养学
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生物化学
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DOI
PubMed
高影响因子
FOOD CHEMISTRY
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2017
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IF 4.529
Xin Zhou,Da-Yong Zhou,Ting Lu,Zhong-Yuan Liu,Qi Zhao,Yu-Xin Liu,Xiao-Pei Hu,Jiang-Hua Zhang,Fereidoon Shahidi
Sea urchin gonad has been regarded as a “healthy” food. Although previous studies have suggested that sea urchin gonad might serve as a potential rich source of long chain omega-3 polyunsaturated fatty acids (n-3 LC-PUFA) enriched phospholipid (PL), the molecular species profile of its PL has rarely been reported. In this study, about 200 molecular species of glycerophospholipid (GP), including glycerophosphocholine, glycerophosphoethanolamine, glycerophosphoserine, glycerophosphoinositol, lysoglycerophosphocholine and lysoglycerophosphoethanolamine, in gonads from three species of sea urchin ( Glyptocidaris crenularis , Strongylocentrotus intermedius and Strongylocentrotus nudus ) were characterized using tandem mass spectrometry. Most of the predominant GP molecular species contained PUFA, especially eicosapentaenoic acid (EPA). Meanwhile, the sea urchin lipids contained a high proportion of PL (39.45–50.30% of total lipids) and PUFA (34.47–46.56% of total FA). Among PL, phosphatidylcholine (67.88–72.58 mol%) was dominant. Considering the high level of PUFA enriched GP, sea urchin gonads provide great potential as health-promoting food for human consumption.
研究领域:
生物化学
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食品科学
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DOI
高影响因子
FOOD CHEMISTRY
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2017
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IF 4.529
Kai-Qi Gang,Da-Yong Zhou,Ting Lu,Zhong-Yuan Liu,Qi Zhao,Hong-Kai Xie,Liang Song,Fereidoon Shahidi
Whelk has been exploited commercially as a delicacy for a long time. Although previous studies have suggested that whelk might serve as a potential rich source of long chain omega-3 polyunsaturated fatty acids (n-3 LC-PUFA) enriched phospholipid (PL), the molecular species profile of the PL have not been reported yet. In this study, more than 220 molecular species of glycerophospholipid (GP) belonging to eight classes including glycerophosphocholine, glycerophosphoethanolamine, glycerophosphoserine, glycerophosphoinositol, lysoglycerophosphocholine, lysoglycerophosphoethanolamine, lysoglycerophosphoserine and lysoglycerophosphoinositol in three species of edible whelks ( Buccinium yokomaruae , Neptunea arthritica cumingi Cosse and Volutharpa ampullaceal ) were identified for the first time by using direct infusion tandem mass spectrometric method. Most of the predominant GP molecular species contained n-3 LC-PUFA, especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Meanwhile, the whelk lipids contained a high proportion of PL (32.92–55.55% of total lipids) and PUFA (30.45–41.42% of total FA). Among PL, phosphatidylcholine (44.18–65.49 mol%) was dominant.
研究领域:
生物化学
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营养学
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产品关联
DOI
PubMed
高影响因子
BIOPROCESS AND BIOSYSTEMS ENGINEERING
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2026
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IF 4.3
Shen Ji-Dong,Zhang Meng,Li Meng-Yang,Dong Yu-Qi,Liu Zhi-Qiang,Zheng Yu-Guo
Omega-3 polyunsaturated fatty acids (n-3 PUFAs) offer therapeutic benefits, including triglyceride reduction and management of cardiovascular and neurological disorders. This study investigates the use of fish oil processing by‑products, which consist mainly of fatty acid methyl and ethyl esters, as novel substrates for n‑3 PUFAs production. To overcome the low efficiency of conventional chemical methods and the vulnerability of free lipase to alcohol toxicity and poor reusability, we developed a stable immobilized lipase system. The target enzyme (CALB) was immobilized onto macroporous resin LXTE‑1000 via adsorption‑crosslinking, and optimal hydrolysis conditions were determined. The resulting immobilized enzyme (LXTE‑1000@CALB) showed markedly enhanced thermal and operational stability, retaining approximately 64.21% of its initial hydrolysis degree over ten consecutive batches. This work provides an efficient, green, and sustainable approach for valorizing fish oil by‑products and producing n‑3 PUFAs. Graphical abstract
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高影响因子
Frontiers in Pharmacology
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2026
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IF 5.4
Yifan Guo,Fang Hu,Allan Zijian Zhao,Yingjuan Zeng,Haoying Chen,Ai Wang,Xiaoxi Li,Li Cong
Introduction Omega-3 polyunsaturated fatty acids (PUFAs) have been widely reported to exert beneficial effects in type 1 diabetes mellitus (T1DM). However, the mechanisms by which Omega-3 PUFAs influence pancreatic islet function through the gut-islet axis remain incompletely understood. This study aimed to investigate whether Omega-3 PUFAs-associated alterations in gut microbiota composition and their metabolites are involved in the modulation of the pancreatic islet microenvironment in T1DM, and to explore the potential immunological mechanisms underlying these effects. Methods Fecal microbiota transplantation (FMT) was performed to evaluate the effects of Omega-3 PUFAs-associated gut microbiota in non-obese diabetic (NOD) mice. Immune cell composition and inflammatory status within pancreatic islets were analyzed using transcriptomic profiling, flow cytometry, and immunohistochemistry. Metabolomics analysis was performed to investigate the association among Omega-3 PUFAs, gut microbiota, and microbiota-related metabolites. In vitro co-culture systems were further established to evaluate the effects of selected metabolites on macrophage polarization and insulin production and secretion in pancreatic β-cells. Results Omega-3 PUFAs treatment and FMT were associated with reduced islet inflammation and a marked enrichment of the Eubacterium coprostanoligenes group ( E. coprostanoligenes ). Enhanced M2 macrophage polarization was observed in the islet microenvironment of FMT mice. Among gut microbiota metabolites, 18β-glycyrrhetinic acid (18β-GA) showed a strong association with E. coprostanoligenes , and in vitro experiments suggested a potential involvement of E. coprostanoligenes in the metabolic conversion process related to 18β-GA. In co-culture systems, 18β-GA promoted macrophage polarization toward an M2-like phenotype, which was accompanied by increased insulin production and secretion in pancreatic β-cells. Conclusion These findings suggest that Omega-3 PUFAs-associated alterations in gut microbiota composition and 18β-GA-related metabolic changes may contribute to the modulation of the pancreatic immune microenvironment and β-cells function in T1DM. This study provides additional insights into lipid-microbiota-immune interactions relevant to T1DM and supports further investigation of microbiota-associated immune regulation.
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2018
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IF 3.909
Ying Chen,Ling-Zhi Cheong,Jiahe Zhao,Worawan Panpipat,Zhipan Wang,Ye Li,Chenyang Lu,Jun Zhou,Xiurong Su
Present study employed molecular modeling method to elucidate the binding affinity of lipases with fatty acids of different chain lengths; and investigated the effects of lipases positional and fatty acids specificity on omega-3 polyunsaturated fatty acids (ω-3 PUFAs) enrichment in cod liver and linseed oils. Among the lipases studied, molecular modeling showed the active sites of Candida rugosa lipase (CRL) had a low C-Docker interactive energy for saturated (SFA) and monounsaturated (MUFA) fatty acids which predicted CRL to have highest preferences to selectively hydrolyze resulting in efficient enrichment of ω-3 PUFAs. Verification experiments showed the SFA and MUFA in the acylglycerol fraction includes monoacylglcyerols (MAG), diacyglycerols (DAG), and triacylglycerols (TAG) of CRL-hydrolyzed cod liver oil decreased from the initial 25.21 to 16.88% and 45.25 to 32.17%, respectively. In addition, CRL-hydrolyzed cod liver oil demonstrated 88.36% of ω-3 PUFAs enrichment. The regio-distribution of fatty acids in CRL-hydrolyzed cod liver oil were not significantly different than that of cod liver oil indicating the ω-3 PUFAs enrichment was due to fatty acids selectivity and not positional selectivity of CRL.
研究领域:
生物化学
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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）