LWT-FOOD SCIENCE AND TECHNOLOGY
·
2023
·
IF 6
Xuan Liu,Weifei Wang,Long Xu,Zhong Li,Qingqing Xu,Bo Yang,Dongming Lan,Yonghua Wang
Phospholipids (PLs), as natural additives and nutritional supplements, are recovered from the gum phase during the degumming process of crude vegetable oils. The molecular species of phospholipids recovered from crude soybean (SO), flaxseed (FO) and peanut oil (PO) by different degumming processes, including water (WD), acid (AD), PLA 1 (EDA), PLC (EDC) and PLA 1 -PLC (EDAC) were investigated. According to the PLS-DA model, a total of 30, 38 and 21 characteristic markers were identified using UPLC-Q-TOF-MS in the phospholipids recovered from SO, FO and PO by different degumming processes, respectively. PC (18:2/18:2) and PE (18:2/18:2) were the main phospholipids for WD and AD, LPC (18:2) and LPE (18:2) were the main phospholipids for EDA and EDAC, and PI (16:0/18:2) and PI (16:0/18:1) were served as characteristic phospholipids for EDC. In addition, a lamellar liquid-crystalline phase was observed in the recovered phospholipids, which indicated that the microstructure of phospholipids recovered from crude vegetable oils were significantly influenced by different degumming processes. These differential molecular species of phospholipid products provide useful information to facilitate the potential utilization of phospholipid products as emulsifiers in food and as ingredients in the pharmaceutical industries.
研究领域:
食品科学
·
生物化学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2022
·
IF 9.231
Wei Wei,Dan Li,Chenyu Jiang,Xinghe Zhang,Xue Zhang,Qingzhe Jin,Xi Zhang,Xingguo Wang
We compared phospholipids (PLs) content, their molecular species, and milk fat globules size and microstructure in the milk of five mammalian species, including human, cow, goat, yak, and donkey. The absolute quantification of major PLs was determined using 31 P NMR and their fatty acid composition with GC. The molecular species of PLs were analysed using LC-MS where a total of 9 PL species, including one sphingomyelin (SM), six glycerophospholipid (GPL), and two lysoglycerophospholipids (lyso-GPLs), were identified. PLs profile shows an obvious difference among the species, with human milk showing higher SM content and more unsaturated fatty acyls than other mammalian milk. The mammalian milk show a similar core-membrane lipid structure but obvious different size distribution. These data provide a basis for better construction of infant formulas to provide PLs requirements and a similar milk fat globule structure for infants.
研究领域:
营养学
·
生物化学
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DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2017
·
IF 4.529
Zhong-Yuan Liu,Da-Yong Zhou,Zi-Xuan Wu,Fa-Wen Yin,Qi Zhao,Hong-Kai Xie,Jian-Run Zhang,Lei Qin,Fereidoon Shahidi
Phospholipid (PL)-enriched oils were recovered from six species of edible clams, namely Cyclina sinensis , Mactra chinensis Philippi , Mactra veneriformis Reeve , Meretrix meretrix , Ruditapes phliippinarum and Saxidomus purpurata, using a mixture of ethanol and hexane (1:1, v/v). The oils contained a high proportion of polyunsaturated fatty acids (PUFA) (26.78–45.36% of total FAs), especially eicosapentaenoic acid (EPA) (8.17–10.48% of total FAs) and docosahexaenoic acid (DHA) (7.83–21.34% of total FAs). The oils also contained a high percentage of PL (39.86–74.05% of total lipids). Among PL, phosphatidylcholine (37.40–52.19 mol%) and phosphatidylethanolamine (34.74–43.10 mol%) were dominant. At least 435, 442, 513, 438, 433 and 437 glycerophospholipid (GP) molecular species were characterized, respectively, in lipids from Cyclina sinensis , Mactra chinensis Philippi , Mactra veneriformis Reeve , Meretrix meretrix , Ruditapes phliippinarum and Saxidomus purpurata . Most of the predominant GP molecular species contained PUFA, mainly EPA and DHA, indicating that clam is a potential resource of PUFA enriched GP.
研究领域:
营养学
·
生物化学
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DOI
PubMed
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2022
·
IF 4.52
Jingtao Cui,Jun Cao,Jiachen Ge,Xingchen Qu,Pengyan Li,Chuan Li
Cobia ( Rachycentron canadum ) is a significant fish species for mariculture with high nutritional value . This research aims to comprehensively investigate the lipid profiles of cobia tissues, including fatty acid profiles, characteristics of phospholipids (PL) and triacylglycerols (TAG), and lipid molecular species. The results showed that cobia contained high levels of total lipids (2.89 −32.09 % of wet weight), docosahexaenoic acid (DHA, 10.83 −14.69 % of total fatty acids) and eicosapentaenoic acid (EPA, 3.54 −9.68 %). Compared with TAG, higher levels of polyunsaturated fatty acids , DHA/EPA in particular, were concentrated in PL. Interestingly, DHA was predominantly distributed in the sn-1 position of PL and the sn-2 position of TAG, whereas EPA was predominantly distributed in the external positions of PL and TAG. Additionally, at least 693 molecular species from 23 subclasses were identified by ultrahigh-performance liquid chromatography-quadrupole exactive-mass spectrometry (UPLC-Q-Exactive-MS). Glycerophospholipids (63.19 −66.61 %) and glycerolipids (19.17 −22.21%) were the major lipid classes in cobia tissues, and the majority of them contained DHA and EPA. Hence, this comprehensive analysis will help to evaluate the lipid nutritional values and facilitate exploitation in cobia consumption and processing.
研究领域:
水产养殖学
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营养学
·
脂质组学
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产品关联
DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2023
·
IF 3.8
Yang Yang,Dandan Liu,Xing Liang,Xiaobing Li
The mineral species in soils vary in a wide variety of places, thus resulting in the petroleum-contaminated soil (PCS) with complex characters. Thus, the research on the effect of mineral species on oil-soil interactions in PCS takes on a critical significance. In this study, the desorption and adsorption behaviors of aromatic hydrocarbons (Ar) on two minerals surfaces were examined. Meanwhile, the interfacial forces between minerals and Ar were studied and the sources of these forces were analyzed. Moreover, molecular dynamics (MD) simulations were conducted to gain insight into the interfacial interaction mechanisms. As revealed by the results of this study, in comparison with Qs–Ar (quartz sand, Qs), Mnt–Ar (montmorillonite, Mnt) contaminants required higher temperature and activation energies for thermal desorption (201.95 kJ·mol −1 vs . 127.82 kJ·mol −1 ). The above difference was generated since the adhesive forces between Ar and Mnt surfaces were greater than those between Ar and Qs. As indicated by the analysis of the adhesion force sources, the van der Waals forces were responsible for facilitating oil adhesion to mineral surfaces, even though the electrostatic force prevented oil–mineral adhesion. Furthermore, the hydrophobic forces facilitated adhesion in 3 nm. The MD results demonstrated that compared with the Qs system, there existed larger binding energies between Ar and Mnt, a lower diffusion coefficient for Ar on the Mnt surface, as well as more significant adsorption of Ar on Mnt. In general, the different mineral species affect the strength of the interaction at the oil–soil interface, which is a guideline for proposing targeted oil-soil separation measures.
研究领域:
环境科学
·
土壤学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2017
·
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
·
食品科学
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2016
·
IF 5.267
Xing-kang Li,Zhen Fang,Jia Luo,Tong-chao Su
In order to develop a process for the simultaneous production of furfural and easily hydrolyzable cellulose, the degradation of sugar cane bagasse in a single aqueous system and in a 2-methyltetrahydrofuran (MTHF)/aqueous AlCl3 biphasic system was studied. In single aqueous system, the influence of acid species (FeCl3, HCl, and AlCl3) on furfural production and cellulose degradation was investigated at 150 °C. FeCl3 and HCl promoted furfural production from hemicellulose but with severe cellulose degradation. AlCl3 decreased cellulose degradation with considerable furfural yield and high glucan content in solid residues. The role of NaCl in furfural production and cellulose decomposition was also investigated in the single aqueous system using different acids as catalysts. Addition of NaCl significantly promoted furfural yield but also accelerated cellulose decomposition when FeCl3 or HCl was used as catalyst. In the AlCl3-catalyzed system, NaCl had less influence on residue yield and its composition, although NaCl also promoted furfural production. The influence of MTHF on furfural yield, residue composition, and enzymatic hydrolysis of residue was also studied. Under the best conditions (0.45 g of bagasse, 9 mL of MTHF, 9 mL of water, 0.1 M AlCl3, 150 °C, 45 min, and 10 wt % NaCl), 58.6% furfural was obtained while more than 90% of cellulose remained in the residue. The organic phase was separated from the aqueous phase directly by decantation. After reuse of organic phase for 3 cycles, 11.5 g/L furfural was obtained. The catalyst-containing aqueous phase could be reused directly after decantation of the organic phase without loss of activity. The obtained residue was easy to hydrolyze and produced 89.3% glucose yield after 96-h enzymatic hydrolysis at low cellulase loading (30 FPU of cellulase/g glucan).
研究领域:
生物化学工程
·
可再生资源利用
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产品关联
DOI
高影响因子
Foods
·
2021
·Vol. 10
·期 7
·1645
·
IF 4.35
Tian Lan,Chenxu Gao,Quyu Yuan,Jiaqi Wang,Hexin Zhang,Xiangyu Sun,Yushan Lei,Tingting Ma
The aroma chemical composition of commonly planted kiwifruit cultivars in China was analyzed. The combination of 2-octanone with 3-octanone was the most suitable dual internal standard for quantitative analysis in GC-MS. A total of 172 aroma components in 23 kiwifruit cultivars were detected, and ethyl butanoate, (E)-2-hexen-1-ol, and (E)-2-hexenal could be considered the core aroma components in kiwifruit, but still need further confirmation using Sensomics. E-nose could effectively distinguish different cultivars of kiwifruit. Clustering based on GC-MS and E-nose results tends to be consistent and demonstrate a certain degree of similarity. Kiwifruit cultivars with different flesh colors cannot be effectively distinguished by their aroma chemical compositions. Different species of kiwifruit can be distinguished to some extent by their aroma chemical compositions, but the effect was not satisfactory. These results could prove valuable in the breeding, planting, and marketing of kiwifruits.Keywords:kiwifruit;chemical compositions;E-nose;GC-MS;flesh color;species
研究领域:
园艺学
·
食品科学
·
分析化学
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产品关联
DOI
PubMed
高影响因子
WATER RESEARCH
·
2023
·
IF 12.8
Bei Ye,Qian-Yuan Wu,Wen-Long Wang,Hong-Ying Hu
Pharmaceutical and personal care products (PPCPs) are frequently detected in water bodies and have potential risks to human health and the ecosystem. The degradation of eight structurally diverse PPCPs by ammonia/chlorine was systematically investigated in this study. Compared with chlorination, ammonia/chlorine markedly enhanced PPCP degradation, and the degradation efficiencies of most PPCPs were greater than 70%. Tert-butanol strongly suppressed PPCP degradation, while bicarbonate suppressed it moderately, suggesting the importance of ClO⋅and ⋅CO 3 − in PPCP degradation. In neutral conditions, PPCP degradation was mainly attributed to ⋅OH, with its contribution ranging from 74% to 100% at a Cl 2 /N molar ratio of 1.6. Regarding the effect of natural organic matter, atrazine and primidone were inhibited the most, while carbamazepine (CBZ), metoprolol (MTP), and atenolol (ATN) were affected the least. PPCP degradation was suppressed in reclaimed water; the degradation of CBZ, MTP, and ATN was suppressed the least, with degradation efficiencies of 77.1%–85.4%, 75.1%–77.1%, and 64.6%–68.8%, respectively. Furthermore, compared with chlorination, fewer volatile halogenated byproducts were formed in reclaimed water when using the ammonia/chlorine process, and the concentration of each byproduct formed by ammonia/chlorine was less than 10 µg/L. This study suggests the feasibility of using ammonia/chlorine oxidation to degrade PPCPs in reclaimed water.
研究领域:
环境科学
·
水处理
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Qi Zhang,Siru Ren,Ang Li,Jing Zhang,Song Xue,Xiaodong Sun
Ionic liquids (ILs) have proven to be a promising alternative to traditional chiral selectors in chiral capillary electrophoresis (CE). However, the number of IL-type chiral selectors currently available is quite limited and their types of structure are generally restricted to tetraalkylammonium salts. In this work, six tartaric acid (TT)-based ILs (TTILs) were designed containing different cation species, including di-1-butyl-3-methylimidazolium-L-tartrate ([BMIM] 2 -L-TT), di-1-butyl-pyridinium-L-tartrate ([BPY] 2 -L-TT), di-tetrabutylphosphonium-L-tartrate ([TBP] 2 -L-TT), di-choline-L-tartrate ([CHO] 2 -L-TT), di-1-butyl-1-methylpiperidinium-L-tartrate ([BMPIP] 2 -L-TT), and di-1-butyl-1-methylpyrrolidinium-L-tartrate ([BMPYR] 2 -L-TT). These novel IL-type chiral selectors were successfully synthesized and applied to the enantioseparation of ten amino alcohols in CE . Under selected CE conditions (60 mM TTILs, 150 mM boric acid in 80–90% methanol, pH 4.5), [BMPIP] 2 -L-TT showed the best chiral separation performance, followed by [BMPYR] 2 -L-TT and [TBP] 2 -L-TT. Most amino alcohols were resolved with enantioresolutions (Rs) above 4.0. The enantioselectivity demonstrated by [CHO] 2 -L-TT was relatively moderate (Rs ranging from 1.50 to 4.50), but it proved that the suppression of electroosmotic flow (EOF) is not the main contribution of TTILs to chiral CE. The enantioselectivities of [BMIM] 2 -L-TT and [BPY] 2 -L-TT were also shown to be satisfactory but their interference with UV detection is a negative factor in CE application. To the best of the authors’ knowledge, this is the first time that the influence of various achiral cation species of IL-type chiral selectors on CE enantioseparations has been systematically evaluated. Since there has been controversy regarding the true role of chiral ILs in CE enantioseparations, the parallel comparison of these TTILs in this work clearly shows that their cations are able to participate in the enantiorecognition process by introducing steric hindrance effect, rather than merely influencing the EOF in the separation systems.
研究领域:
分析化学
·
手性分离科学
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DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·Vol. 31
·期 11
·17156-17163
·
IF 0
Zhu Meng,Zhu Jinglin,Peng Juanjuan,Zhang Bingliang,Liu Shaomin
Phosphonates have received a widespread attention in wastewater treatment due to their potential threat to the water environment. Advanced oxidation processes (AOPs) are feasible methods to degrade phosphonates, and most of the coexisting substances in water show a negative factor during their oxidation. However, the effect of bromide (Br − ) on the degradation of phosphonates in peroxymonosulfate (PMS) activation is still unclear. Herein, using 1-hydroxyethane 1,1-diphosphonic acid (HEDP) as a target phosphonate, Br − could remarkably enhance the degradation of HEDP in PMS activation compared to the PMS alone. Under the condition of pH = 7.0, the optimal degradation efficiency of HEDP is 84.8% in the PMS/Br − process after 30-min reaction, whereas no significant oxidation is obtained in the PMS/I − and PMS/Cl − processes. Multiple experiments (i.e., electron paramagnetic resonance (EPR), radical quenching experiments and chemical probs) confirm that free bromine, SO 4 •− and HO• paly a minor role in HEDP removal, and bromine radical species make a dominant responsible for HEDP oxidation. Additionally, NO 3 − , SO 4 2− , Cl − , and HCO 3 − have a little effect on the degradation of HEDP, but the HEDP removal is greatly inhibited in the presence of humic acid (HA). However, the degradation efficiency of HEDP using PMS/Br − process in river and sewage is a much higher than UV/persulfate (PDS) and UV/H 2 O 2 processes. This study provides a new sight into the effect of Br − on the degradation phosphonates in PMS activation process.
研究领域:
环境化学
·
水处理
·
化学工程
·
环境科学
✓ 已验证
DOI
FOOD CHEMISTRY
·
2017
·
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
·
营养学
✓ 已验证
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）