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You searched for: Subject "diacylglycerols" Remove constraint Subject: "diacylglycerols"
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1. Evaluation of changes in egg yolk lipids during storage based on lipidomics through UPLC-MS/MS

Author:
Yu Liu; Xin Guo; Niannian Wang; Shiling Lu; Juan Dong; Zeliang Qi; Junrong Zhou; Qingling Wang
Source:
Food chemistry 2023 v.398 pp. 133931
ISSN:
0308-8146
Subject:
diacylglycerols,   etc   ; egg yolk; food chemistry; glycerophospholipids; lipidomics; lysophospholipids; metabolism; metabolites; sphingolipids; sterols; storage time;     Show all 11 Subjects
Abstract:
... A comprehensive UPLC-MS/MS-based lipidomics analysis of egg yolk at different storage periods was performed. Through the analysis, 836 lipid species from 27 subclasses were detected, including 159 significantly different lipid species. Glycerolipids (GL) and glycerophospholipids (GP) were the most abundant lipids, followed by fatty acyls (FA), sphingolipids (SP), sterol lipids (ST), and prenol lip ...
DOI:
10.1016/j.foodchem.2022.133931

2. Identification and comparison of palmitoleic acid (C16:1 n-7)-derived lipids in marine fish by-products by UHPLC-Q-exactive orbitrap mass spectrometry

Author:
Lijun Ge; Huicheng Yang; Weibo Lu; Yiwei Cui; Shikai Jian; Gongshuai Song; Jing Xue; Xin He; Qingcheng Wang; Qing Shen
Source:
Journal of food composition and analysis 2023 v.115 pp. 104925
ISSN:
0889-1575
Subject:
diacylglycerols,   etc   ; Pampus argenteus; Thunnus obesus; food composition; marine fish; mass spectrometry; palmitoleic acid; phospholipids; sardines; seafoods; ultra-performance liquid chromatography;     Show all 11 Subjects
Abstract:
... Palmitoleic acid (POA) is a monounsaturated n-7 fatty acid (16:1 n-7) that is active in modulating cardiovascular and metabolic processes. POA-structured phospholipids, diglycerides, and triglycerides (POA-PL, -DG, -TG) are abundantly present in marine life. In this study, POA and POA-lipids contained in crude lipids in visceral by-products of six seafood products (n = 6 for each sample) were anal ...
DOI:
10.1016/j.jfca.2022.104925

3. Quantitative lipidomic analysis of egg yolk, yolk granule, and yolk plasma

Author:
Xiaoqi He; Jinqiu Wang; Yi Wang; Beibei Wang; Jiamin Zhang; Fang Geng
Source:
Journal of food composition and analysis 2023 v.115 pp. 104880
ISSN:
0889-1575
Subject:
diacylglycerols,   etc   ; chickens; docosahexaenoic acid; egg yolk; eicosapentaenoic acid; food composition; lipid composition; lipidomics; liquid chromatography; lysophosphatidylcholine; phosphatidylethanolamines; tandem mass spectrometry;     Show all 12 Subjects
Abstract:
... Chicken egg yolk (EY) can be divided into yolk granule (EYG) and yolk plasma (EYP); they develop individually based on their remarkably different nutritional compositions and properties. However, the differences in lipid profiles between EYG and EYP have not been fully revealed. In this study, quantitative lipidomic analyses of EY, EYG, and EYP were implemented through a liquid chromatography-tand ...
DOI:
10.1016/j.jfca.2022.104880

4. Changes in lipids and aroma compounds in intramuscular fat from Hu sheep

Author:
Jing Li; Youyou Yang; Chaohua Tang; Shengnan Yue; Qingyu Zhao; Fadi Li; Junmin Zhang
Source:
Food chemistry 2022 v.383 pp. 132611
ISSN:
0308-8146
Subject:
diacylglycerols,   etc   ; flavor; food chemistry; intramuscular fat; lipid peroxidation; lipidomics; odors;     Show all 7 Subjects
Abstract:
... Intramuscular fat (IMF) content is associated with lamb flavor and largely varies between individuals of the same breed. However, studies investigating the effects of IMF variations on lipid profiles and aroma compounds are limited. Here, we performed lipidomic and volatilomic profiling of high-IMF and low-IMF Hu lambs. Triglycerides and diglycerides in the high-IMF group were significantly higher ...
DOI:
10.1016/j.foodchem.2022.132611

5. Analysis and comparison of lipids in Saanen goat milk from different geographic regions in China based on UHPLC-QTOF-MS lipidomics

Author:
Jiaqi Shang; Ning Liu; Jianjun Cheng; Wenhao Gao; Xiaomeng Sun; Mingruo Guo
Source:
Food research international 2022 v.157 pp. 111441
ISSN:
0963-9969
Subject:
diacylglycerols,   etc   ; Saanen; food research; glucosylceramides; goat milk; lipidomics; sphingomyelins; traceability; triacylglycerols; China;     Show all 10 Subjects
Abstract:
... The lipids in goat milk from Guangdong Province (GGM), Shaanxi Province (SGM), and Inner Mongolia Province (NGM) were analyzed and compared using untargeted lipidomics. A total of 16 lipid sub-classes and 638 lipid molecules were identified in the three groups. The main lipids were diacylglycerol (DG), triacylglycerol (TG), and glycerophosphatidylethanolamine (PE). The contents of glycerophosphati ...
DOI:
10.1016/j.foodres.2022.111441

6. Ultrahigh-performance supercritical fluid chromatography for intraclass separation of lipids: Investigation of general principles

Author:
Oleksandr Kozlov; Miroslav Lísa
Source:
Journal of chromatography 2022 v.1670 pp. 462975
ISSN:
0021-9673
Subject:
diacylglycerols,   etc   ; lipidomics; lysophosphatidylcholine; mass spectrometry; positional isomers; supercritical fluid chromatography; temperature; triacylglycerols;     Show all 8 Subjects
Abstract:
... Powerful chromatographic techniques are required for lipidomic analyses due to the extreme complexity of natural lipidomes. In the past few years, ultrahigh-performance supercritical fluid chromatography (UHPSFC) has proven to be a good alternative to conventional LC methods for comprehensive lipidomic analysis. The goal of this work was to study UHPSFC intraclass separation of lipids according to ...
DOI:
10.1016/j.chroma.2022.462975

7. Canvasing the Substrate-Binding Pockets of the Wax Ester Synthase

Author:
Natalia Calixto Mancipe; Kalene M. Mulliner; Mary H. Plunkett; Brett M. Barney
Source:
Biochemistry 2022 v.61 no.10 pp. 922-932
ISSN:
1520-4995
Subject:
diacylglycerols,   etc   ; Marinobacter aquaeolei; acyl coenzyme A; biodiesel; biosynthesis; carbon; catalytic activity; crystal structure;     Show all 8 Subjects
Abstract:
... The biosynthesis of wax esters and triglycerides in bacteria is accomplished through the action of the wax ester synthase/acyl-coenzyme A:diacylglycerol acyltransferase (WS/DGAT or wax ester synthase). A hallmark of these enzymes is the broad substrate profile that accepts alcohols, diglycerides, and fatty acyl-CoAs of various carbon chain lengths and degrees of branching. These enzymes have a bro ...
DOI:
10.1021/acs.biochem.2c00076
CHORUS:
10.1021/acs.biochem.2c00076

8. HPLC fluorescence assay for measuring the activity of diacylglycerol lipases and the action of inhibitors thereof

Author:
Tim Depmeier; Thomas Lange; Walburga Hanekamp; Timo Strünker; Matthias Lehr
Source:
Analytical biochemistry 2022 v.657 pp. 114889
ISSN:
0003-2697
Subject:
diacylglycerols,   etc   ; biosynthesis; brain; cannabinoids; carboxylic ester hydrolases; fluorescence; humans; liver; microsomes; rats; spermatozoa;     Show all 11 Subjects
Abstract:
... 1,2-Diacylglycerol lipases (DAGLs) are the most important enzymes for the biosynthesis of the endocannabinoid 2-arachidonoylglycerol (2-AG), and their role in various pathophysiological conditions is currently under investigation. We synthesized a new 1,2-diacylglycerol substrate for these enzymes with a fluorogenic 4-(pyren-1-yl)butanoyl residue in sn-2 position. Using the fluorescent substrate, ...
DOI:
10.1016/j.ab.2022.114889

9. Effects of Yeast Product Addition and Fermentation Temperature on Lipid Composition, Taste and Mouthfeel Characteristics of Pinot Noir Wine

Author:
Quynh Phan; Aubrey DuBois; James Osborne; Elizabeth Tomasino
Source:
Horticulturae 2022 v.8 no.1 pp. -
ISSN:
2311-7524
Subject:
diacylglycerols,   etc   ; fermentation; grapes; lipid content; lipidomics; mouthfeel; phospholipids; sweetness; taste; temperature; winemaking; wines; yeasts;     Show all 13 Subjects
Abstract:
... Lipids have important impacts on wine sensory. By targeting the lipid sources in wine, mainly from grape tissues and yeast cell walls, it was possible to alter the wine lipid profile thus potentially changing the final product quality. This research examined the changes of wine total lipids, lipid composition and sensory characteristics of Pinot noir wines in response to the winemaking factors, fe ...
DOI:
10.3390/horticulturae8010052

10. Investigation of the changes in the lipid profiles in hairtail (Trichiurus haumela) muscle during frozen storage using chemical and LC/MS-based lipidomics analysis

Author:
Chuandong Fang; Hongshuo Chen; Hongbo Yan; Shanshan Shui; Soottawat Benjakul; Bin Zhang
Source:
Food chemistry 2022 v.390 pp. 133140
ISSN:
0308-8146
Subject:
diacylglycerols,   etc   ; Trichiurus; food chemistry; frozen storage; hydrolysis; lipidomics; muscles; oxidation; phosphatidylcholines; phosphatidylethanolamines; storage time;     Show all 11 Subjects
Abstract:
... Chemical and LC/MS-based lipidomics strategies were performed to explore the alterations of lipid profiles in hairtail (Trichiurus haumela) muscle during 120 days of frozen storage. Chemical results indicated that the PV and TBARS values in hairtail muscle significantly increased during 120 days of frozen storage. Lipidomics results detected 1223 lipids in hairtail muscle assigned to 26 lipid cate ...
DOI:
10.1016/j.foodchem.2022.133140

11. Kinetics and hydrodynamics of Candida antartica lipase-catalyzed synthesis of glycerol dioleate (GDO) in a continuous flow packed-bed millireactor

Author:
Nurul Nadiah Abd Razak; Patrick Cognet; Yolande Pérès; Lai Ti Gew; Mohamed Kheireddine Aroua
Source:
Journal of cleaner production 2022 v.373 pp. 133816
ISSN:
0959-6526
Subject:
diacylglycerols,   etc   ; Candida; bioreactors; carboxylic ester hydrolases; esterification; glycerol; hydrodynamics; mass transfer; models; oleic acid;     Show all 10 Subjects
Abstract:
... Diacylglycerols (DAG) have been widely used in many industries due to their remarkable capabilities as emulsifiers and stabilisers. However, developing a sustainable and an effective synthesis method for DAG remains a challenge. Continuous flow bio-reactor is recognized to be more productive, controllable, and reliable instrument for developing green and intensified processes. In this work, a cont ...
DOI:
10.1016/j.jclepro.2022.133816

12. Exploring Interfacial Hydrolysis of Artificial Neutral Lipid Monolayer and Bilayer Catalyzed by Phospholipase C

Author:
Rongrong Du; Xu Li; Yong-Hao Ma; Yongsheng Luo; Chu Wang; Qian Ma; Xiaolin Lu
Source:
Langmuir 2022 v.38 no.26 pp. 8104-8113
ISSN:
1520-5827
Subject:
diacylglycerols,   etc   ; Bacillus cereus; enzyme activity; hydrolysis; lipolysis; mammals; phosphatidylcholines; phospholipase C; phospholipases; phosphorylcholine; spectroscopy;     Show all 11 Subjects
Abstract:
... Phospholipase C (PLC) represents an important type of enzymes with the feature of hydrolyzing phospholipids at the position of the glycerophosphate bond, among which PLC extracted from Bacillus cereus (BC-PLC) has been extensively studied owing to its similarity to hitherto poorly characterized mammalian analogues. This study focuses on investigating the interfacial hydrolysis mechanism of phospha ...
DOI:
10.1021/acs.langmuir.2c00995

13. Immunocytochemistry of phospholipase D1 and D2 in cultured cells

Author:
Yasukazu Hozumi; Masakazu Yamazaki; Tomoyuki Nakano
Source:
Biochemical and biophysical research communications 2022 v.625 pp. 161-166
ISSN:
0006-291X
Subject:
diacylglycerols,   etc   ; acid phosphatase; cytoplasm; immunocytochemistry; inositols; mammals; phosphatidylcholines; phospholipase C; phospholipases; plasma membrane; research;     Show all 11 Subjects
Abstract:
... Activation of Gq protein-coupled receptors triggers the phospholipase C (PLC) pathway, which yields a pair of second messengers: diacylglycerol (DG) and inositol 1,4,5-trisphosphate (IP₃). DG kinase (DGK) phosphorylates DG to produce phosphatidic acid (PA), which serves as another second messenger. Along with PLC-DGK pathway, PA is produced directly by the action of phospholipase D (PLD), which hy ...
DOI:
10.1016/j.bbrc.2022.07.118

14. The Effect of Different Freshness of Raw Material on Lipid Quality and Sensory Acceptance of Canned Sardines

Author:
Zuzana Reblová; Santiago P. Aubourg; Jan Pokorný
Source:
Foods 2022 v.11 no.13 pp. -
ISSN:
2304-8158
Subject:
diacylglycerols,   etc   ; Sardina pilchardus; freshness; ice; polyunsaturated fatty acids; raw materials; storage time; texture; triacylglycerols;     Show all 9 Subjects
Abstract:
... We studied how storing fresh sardines (Sardina pilchardus) on ice for 0–15 days would affect lipid quality and sensory acceptance after the sardines were later canned. Average moisture and diacylglycerol contents showed a decreasing trend during storage time for sardines stored for to 0–10 days and an increasing trend for samples stored for 13–15 days. Total lipid and triacylglycerol average value ...
DOI:
10.3390/foods11131987

15. Triacylglycerol lipase Tgl4 is a stable protein and its dephosphorylation is regulated in a cell cycle-dependent manner in Saccharomyces cerevisiae

Author:
Kunio Nakatsukasa; Munetaka Fujisawa; Xiaotan Yang; Tomoyuki Kawarasaki; Fumihiko Okumura; Takumi Kamura
Source:
Biochemical and biophysical research communications 2022 v.626 pp. 85-91
ISSN:
0006-291X
Subject:
diacylglycerols,   etc   ; Saccharomyces cerevisiae; antibodies; dephosphorylation; energy; interphase; mice; phosphorylation; research; triacylglycerol lipase; triacylglycerols; yeasts;     Show all 12 Subjects
Abstract:
... Triacylglycerols (TGs) serve as reservoirs for diacylglycerols and fatty acids, which play important roles in synthesizing energy and membrane lipids that are required for cell cycle progression. In the yeast, Saccharomyces cerevisiae, Tgl4, the functional ortholog of murine adipose triacylglycerol lipase (ATGL), is activated by Cdk1/Cdc28-mediated phosphorylation and facilitates the G1/S transiti ...
DOI:
10.1016/j.bbrc.2022.08.022

16. Crystallization and Rheology of Mono- and Diglycerides and Their Role in Stabilization of Emulsion Droplets in Model Topical Ointments

Author:
Samim Ali; Anju Tiwari; Thean Yeoh; Pankaj Doshi; Narayani Kelkar; Jaymin C. Shah; Jyoti R. Seth
Source:
Langmuir 2022 v.38 no.28 pp. 8502-8512
ISSN:
1520-5827
Subject:
diacylglycerols,   etc   ; X-radiation; ambient temperature; crystallization; emulsions; ingredients; light microscopy; liquids; monoacylglycerols; oils; petroleum; rheology;     Show all 12 Subjects
Abstract:
... The crystallization behavior of commercial mono- and diglycerides (MDG) in paraffin oil is studied to develop an in-depth understanding of the polymorphic transitions useful for the physical stability of petroleum oil-based topical emulsions. Optical microscopy and differential scanning calorimetry measurements showed the formation of plate-like and spherulite crystals at high and low temperatures ...
DOI:
10.1021/acs.langmuir.2c00202

17. Sustainable oil-based ingredients with health benefits for food colloids and products

Author:
Wan Jun Lee; Chaoying Qiu; Junle Li; Yong Wang
Source:
Current opinion in food science 2022 v.43 pp. 82-90
ISSN:
2214-7993
Subject:
diacylglycerols,   etc   ; cocoa butter; food industry; food science; health promotion; microalgae; microbial growth; oleogels; phytochemicals; triacylglycerols;     Show all 10 Subjects
Abstract:
... Omega-3 fatty acids and phytochemicals are known to offer essential functions needed to maintain the wellness of our body systems. Driven by the upsurging demand and the diminishing traditional sources, sustainable alternatives from agri-food sector by-products, native or genetically engineered microalgae and terrestrial plants are proposed. Herein, enzymatically synthesized structured lipids (e.g ...
DOI:
10.1016/j.cofs.2021.10.004

18. Limited fatty-acid supply from the plastid and active catabolism of triacylglycerol prevent the accumulation of triacylglycerol in Coccomyxa sp. strain Obi grown under nitrogen-replete conditions

Author:
Kaori Oyama; Izumi Matsuwaki; Maika Ito; Rei Iwahori; Haruka Nagata; Isuzu Nakamura; Ayaka Kondo; Akane Kodaka; Yurika Fuseya; Haruka Yamamoto; Yui Ueyama; Yoko Ide; Yuki Kasai; Shigeaki Harayama; Misako Kato
Source:
Algal research 2022 v.62 pp. 102620
ISSN:
2211-9264
Subject:
diacylglycerols,   etc   ; Coccomyxa; algae; catabolism; enzymes; fatty acids; nitrogen; photosynthesis; research; reverse transcriptase polymerase chain reaction; triacylglycerols;     Show all 11 Subjects
Abstract:
... The Coccomyxa sp. strain Obi is a unicellular green alga that accumulates >40% triacylglycerol (TAG) per cell dry weight under nitrogen (N)-limiting conditions. In this study, we analyzed the de novo synthesis of TAG under N-replete and N-limiting conditions using ¹⁴C tracers and quantitative reverse transcription PCR (RT-qPCR) approaches. In cells grown under N-replete conditions, the incorporati ...
DOI:
10.1016/j.algal.2021.102620

19. Membrane lipid metabolism influences chilling injury during cold storage of peach fruit

Author:
Chunbo Song; Kang Wang; Xiang Xiao; Qingli Liu; Minjie Yang; Xu Li; Yabin Feng; Saisai Li; Liyu Shi; Wei Chen; Zhenfeng Yang
Source:
Food research international 2022 v.157 pp. 111249
ISSN:
0963-9969
Subject:
diacylglycerols,   etc   ; cold storage; fatty acid desaturase; fatty acids; food research; lipid metabolism; peaches; phosphatidylcholines; temperature; triacylglycerols;     Show all 10 Subjects
Abstract:
... Peach fruit is prone to chilling injury (CI) during long-term low temperature (LT) storage, and develops protective mechanisms against LT stress. This study revealed that 4 °C storage induced the occurrence of CI in peach fruit by promoting the expression of membrane lipid metabolism genes and phosphatidic acid (PA) accumulation, and stimulated a protective mechanism for peach fruit against LT by ...
DOI:
10.1016/j.foodres.2022.111249

20. A novel and efficient method for punicic acid-enriched diacylglycerol preparation: Enzymatic ethanolysis of pomegranate seed oil catalyzed by Lipozyme 435

Author:
Duan Zhou; Mouming Zhao; Jiankang Wang; Muniba Faiza; Xuefeng Chen; Junjie Cui; Ning Liu; Daoming Li
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.159 pp. 113246
ISSN:
0023-6438
Subject:
diacylglycerols,   etc   ; acid value; carboxylic ester hydrolases; ethanolysis; microwave treatment; peroxide value; pomegranates; punicic acid; seed oils;     Show all 9 Subjects
Abstract:
... Punicic acid (PA)-enriched diacylglycerol (DAG) possesses both the beneficial effects of PA and DAG. However, few studies have focused on the preparation of PA-enriched DAG. Here, we report a novel and highly efficient method for the preparation of PA-enriched DAG through Lipozyme 435-catalyzed ethanolysis of pomegranate seed oil (PSO). Firstly, PSO was obtained through microwave-assisted extracti ...
DOI:
10.1016/j.lwt.2022.113246