U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject "branched chain fatty acids" Remove constraint Subject: "branched chain fatty acids"
Start Over

Search

316  Search Results

« Previous | 1 - 20 of 316 |
Number of results to display per page

Search Results

1. Odd- and branched-chain fatty acids in milk fat from Holstein dairy cows are influenced by physiological factors

Author:
L.L. Sun; L. Liu; J.T. Brenna; Z.H. Wu; L. Ma; D.P. Bu
Source:
Animal 2022 v.16 no.6 pp. 100545
ISSN:
1751-7311
Subject:
branched chain fatty acids,   etc   ; Holstein; dairy cows; diet; gas chromatography; lactation stage; milk; milk fat; parity (reproduction); physiological state;     Show all 10 Subjects
Abstract:
... Dairy products are the major source of odd- and branched-chain fatty acids (OBCFAs), a group of nutrients with emerging health benefits. The animal diet is known to influence milk fat OBCFAs of dairy cows; however, little is known about the effects of physiological factors. The objective of this study was to investigate the effects of parity and lactation stage on OBCFAs in milk fat of dairy cows. ...
DOI:
10.1016/j.animal.2022.100545

2. Novel FabI inhibitor disrupts the biofilm formation of MRSA through down-regulating the expression of quorum-sensing regulatory genes

Author:
Yan Zheng; Xueer Lu; Biyong Liu; Bo Li; Chengwei Yang; Wenjian Tang; Jing Zhang
Source:
Microbial pathogenesis 2022 v.163 pp. 105391
ISSN:
0882-4010
Subject:
branched chain fatty acids,   etc   ; antibacterial properties; biofilm; blood; dose response; erythromycin; gene expression; gentian violet; hemolysis; methicillin-resistant Staphylococcus aureus; mice; microbial load; minimum inhibitory concentration; pathogenesis; quantitative polymerase chain reaction; quorum sensing; rabbits; vancomycin;     Show all 18 Subjects
Abstract:
... The aim of this study was to explore the antibiofilm and antivirulence efficacy of benzylaniline 4k against MRSA. The clinical MRSA strains were identified and used to evaluate their potential to form biofilm using crystal violet assay. The minimal inhibitory concentration (MIC) was determined using broth microdilution method. The expression of genes was detected using quantitative real-time PCR ( ...
DOI:
10.1016/j.micpath.2022.105391

3. Combustion mechanism and CFD investigation of methyl isobutanoate as a component of biodiesel surrogate

Author:
Kuang C. Lin; Anurag Dahiya; Hairong Tao; Fan-Hsu Kao
Source:
Energy 2022 v.249 pp. 123589
ISSN:
0360-5442
Subject:
branched chain fatty acids,   etc   ; biodiesel; cold; combustion; energy; fluid mechanics; methane; models; reaction kinetics;     Show all 9 Subjects
Abstract:
... Branched-chain fatty acid methyl esters (FAME), known for cold flow improvers for biodiesel, have received less attention to their chemical kinetics in flames. This study proposes a detailed mechanism reduced to be a compact form to predict the formation of non-fuel small hydrocarbons and light-weight polycyclic aromatic hydrocarbons (PAH) from the oxidation of methyl isobutanoate [MIB, (CH₃)₂CHC( ...
DOI:
10.1016/j.energy.2022.123589

4. Characterization of fecal branched-chain fatty acid profiles and their associations with fecal microbiota in diarrheic and healthy dairy calves

Author:
Hangshu Xin; Tao Ma; Yang Xu; Guanqun Chen; Yanhong Chen; Clothilde Villot; David L. Renaud; Michael A. Steele; Le Luo Guan
Source:
Journal of dairy science 2021 v.104 no.2 pp. 2290-2301
ISSN:
0022-0302
Subject:
branched chain fatty acids,   etc   ; Eggerthella; Holstein; algorithms; biomarkers; dairy science; diarrhea; diet; digestive system; feces; gas chromatography; health status; humans; intestinal microorganisms; liquids; males;     Show all 16 Subjects
Abstract:
... Branched-chain fatty acids (BCFA) have recently been reported to play a role in human gut health during early life. However, little information is available on the fecal BCFA profiles in young ruminants and whether they are associated with the development of neonatal calf diarrhea. The objectives of this study were to (1) characterize BCFA profiles in feces collected from young calves, (2) compare ...
DOI:
10.3168/jds.2020-18825

5. Odd- and Branched-Chain Fatty Acids in Lamb Meat as Potential Indicators of Fattening Diet Characteristics

Author:
Pilar Gómez-Cortés; Francisco Requena Domenech; Marta Correro Rueda; Miguel Ángel de la Fuente; Achille Schiavone; Andrés L. Martínez Marín
Source:
Foods 2021 v.10 no.1 pp. -
ISSN:
2304-8158
Subject:
branched chain fatty acids,   etc   ; Camelina; byproducts; camelina meal; diet; discriminant analysis; finishing; gas chromatography; grains; intramuscular fat; lamb meat; lambs; neutral detergent fiber; researchers; soybean meal; starch;     Show all 16 Subjects
Abstract:
... There is a growing interest of researchers in meat authentication in terms of geographical and dietary background of animals, and several analytical methods have been proposed for the purpose of investigating this. We hypothesized that the odd- and branched-chain fatty acid (OBCFA) profile in intramuscular fat (IMF) might suffice to distinguish lamb meat entering the food chain supply on the basis ...
DOI:
10.3390/foods10010077

6. Gas Chromatography Chemical Ionization Mass Spectrometry and Tandem Mass Spectrometry for Identification and Straightforward Quantification of Branched Chain Fatty Acids in Foods

Author:
Dong Hao Wang; Zhen Wang; J. Thomas Brenna
Source:
Journal of agricultural and food chemistry 2020 v.68 no.17 pp. 4973-4980
ISSN:
1520-5118
Subject:
branched chain fatty acids,   etc   ; animals; beef; gas chromatography; ionization; milk fat; salami; tandem mass spectrometry;     Show all 8 Subjects
Abstract:
... Fatty acid analysis of food lipids containing branched chain fatty acids (BCFAs) are complex because of unavoidable gas chromatography (GC) co-elution. We demonstrate a method for convenient quantitative GC coupled to novel solvent-mediated chemical ionization (CI) mass spectrometry (MS) that enables resolution of co-eluting peaks by mass. The relevant masses yield uniform responses for C₁₄–₂₀ nor ...
DOI:
10.1021/acs.jafc.0c01075

7. Mild Zellweger syndrome due to functionally confirmed novel PEX1 variants

Author:
Patryk Lipiński; Piotr Stawiński; Małgorzata Rydzanicz; Maria Wypchło; Rafał Płoski; Teresa Joanna Stradomska; Elżbieta Jurkiewicz; Sacha Ferdinandusse; Ronald J. A. Wanders; Frederic M. Vaz; Anna Tylki-Szymańska
Source:
Journal of applied genetics 2020 v.61 no.1 pp. 87-91
ISSN:
1234-1983
Subject:
branched chain fatty acids,   etc   ; biogenesis; blood serum; cataract; diagnostic techniques; etiology; fibroblasts; magnetism; patients; phenotype;     Show all 10 Subjects
Abstract:
... Zellweger spectrum disorders (ZSD) constitute a group of rare autosomal recessive disorders characterized by a defect in peroxisome biogenesis due to mutations in one of 13 PEX genes. The broad clinical heterogeneity especially in late-onset presenting patients and a mild phenotype complicates and delays the diagnostic process. Here, we report a case of mild ZSD, due to novel PEX1 variants. The pa ...
DOI:
10.1007/s13353-019-00523-w
PubMed:
31628608
PubMed Central:
PMC6968987

8. Cocoa husks fed to lactating dairy ewes affect milk fatty acid profile and oxidative status of blood and milk

Author:
Silvia Carta; Eleni Tsiplakou; Christina Mitsiopoulou; Giuseppe Pulina; Anna Nudda
Source:
Small ruminant research 2022 v.207 pp. 106599
ISSN:
0921-4488
Subject:
branched chain fatty acids,   etc   ; antioxidant activity; antioxidants; biomarkers; blood; diet; fatty acid composition; glutathione peroxidase; glutathione transferase; glutathione-disulfide reductase; malondialdehyde; milk; milk fatty acids; oxidative stress; peroxidase; research; soybeans; superoxide dismutase; theobromine;     Show all 19 Subjects
Abstract:
... The objective of this study was to evaluate the effect of cocoa husks (CH) containing theobromine on milk fatty acids (FA) and on milk and blood oxidative status in dairy ewes. The experiment was carried out with 24 dairy ewes and it lasted 8 weeks with 3 weeks of adaptation period and 5 weeks of experimental period. Animals were divided in three homogeneous groups and all ewes were fed with the s ...
DOI:
10.1016/j.smallrumres.2021.106599

9. Effects of Dietary Inclusion Level of Microwave-Dried and Press-Defatted Black Soldier Fly (Hermetia illucens) Larvae Meal on Productive Performance, Cecal Volatile Fatty Acid Profile, and Egg Quality in Laying Hens

Author:
Seol-Hwa Park; Hye-Ran Kim; Youl-Chang Baek; Chae-Hwa Ryu; Sang-Yun Ji; Jin-Young Jeong; Minji Kim; Hyunjung Jung; Byeonghyeon Kim
Source:
Animals 2021 v.11 no.6 pp. -
ISSN:
2076-2615
Subject:
branched chain fatty acids,   etc   ; Hermetia illucens; aluminum; cages; dietary protein; digesta; egg quality; eggs; fatty acid composition; heavy metals; magnesium; monounsaturated fatty acids; nutritional intervention; polyunsaturated fatty acids; protein sources; soybean meal; volatile fatty acids; zinc;     Show all 18 Subjects
Abstract:
... Black soldier fly (Hermetia illucens) larvae meal (HILM) is a promising alternative to soybean meal (SBM). However, little information is available on the effect of microwave-dried HILM as a dietary protein source in the diets of laying hens. We studied the effect of dietary inclusion level of microwave-dried HILM on productive performance, cecal volatile fatty acid profile, egg quality, overall f ...
DOI:
10.3390/ani11061486

10. PTP1B-Inhibiting Branched-Chain Fatty Acid Dimers from Eremophila oppositifolia subsp. angustifolia Identified by High-Resolution PTP1B Inhibition Profiling and HPLC-PDA-HRMS-SPE-NMR Analysis

Author:
Hans Albert Pedersen; Chi Ndi; Susan J. Semple; Bevan Buirchell; Birger Lindberg Møller; Dan Staerk
Source:
Journal of natural products 2020 v.83 no.5 pp. 1598-1610
ISSN:
1520-6025
Subject:
branched chain fatty acids,   etc   ; bioactive properties; biosynthesis; cycloaddition reactions; cyclohexenes; high performance liquid chromatography; inhibitory concentration 50; leaf extracts;     Show all 8 Subjects
Abstract:
... Ten new branched-chain fatty acid (BCFA) dimers with a substituted cyclohexene structure, five new monomers, and two known monomers, (2E,4Z,6E)-5-(acetoxymethyl)tetradeca-2,4,6-trienoic acid and its 5-hydroxymethyl analogue, were identified in the leaf extract of Eremophila oppositifolia subsp. angustifolia using a combination of HPLC-PDA-HRMS-SPE-NMR analysis and semipreparative-scale HPLC. The d ...
DOI:
10.1021/acs.jnatprod.0c00070

11. Heptadecanoic acid as an indicator of BCFA content in sheep fat

Author:
Peter J. Watkins; Damian Frank
Source:
Meat science 2019 v.151 pp. 33-35
ISSN:
0309-1740
Subject:
branched chain fatty acids,   etc   ; animal age; odors; sheep; sheep meat;     Show all 5 Subjects
Abstract:
... Branched chain fatty acids (BCFAs) are associated with ‘mutton flavour’ found in cooked sheep meat aroma. Three BCFAs, 4-methyloctanoic (MOA), 4-ethyloctanoic (EOA) and 4-methylnonanoic (MNA) acids, have been implicated as the main compounds responsible for ‘mutton flavour’. Animal age can also contribute to increasing BCFA concentration. Heptadecanoic acid (C17:0 FA) also increases with animal ag ...
DOI:
10.1016/j.meatsci.2019.01.005

12. Expansion of the structure-activity relationship of branched chain fatty acids: Effect of unsaturation and branching group size on anticancer activity

Author:
Ritik Roy; Ariane Roseblade; Tristan Rawling
Source:
Chemistry and physics of lipids 2020 v.232 pp. 104952
ISSN:
0009-3084
Subject:
branched chain fatty acids,   etc   ; antineoplastic activity; chemical bonding; human cell lines; human diseases; mechanism of action; neoplasm cells; neoplasms; structure-activity relationships; therapeutics; toxicity;     Show all 11 Subjects
Abstract:
... Branched chain fatty acids (BCFAs) are a class of fatty acid with promising anticancer activity. The BCFA 13-methyltetradecanoic acid (13-MTD) inhibits tumour growth in vivo without toxicity but efficacy is limited by moderate potency, a property shared by all known BCFAs. The mechanism of action of BCFAs has not been fully elucidated, and in the absence of a clearly defined target optimisation of ...
DOI:
10.1016/j.chemphyslip.2020.104952

13. The Effect of Branched‐Chain Fatty Acid Alkyl Esters on the Cold‐Flow Properties of Biodiesel

Author:
Robert O. Dunn; Victor T. Wyatt; Karen Wagner; Helen Ngo; Megan E. Hums
Source:
The journal of the American Oil Chemists' Society 2019 v.96 no.7 pp. 805-823
ISSN:
0003-021X
Subject:
branched chain fatty acids,   etc   ; biodiesel; lard; methanol; pour point; rheology; sewage; soybean oil; tallow; temperature; transesterification;     Show all 11 Subjects
Abstract:
... Biodiesel (fatty acid methyl esters [FAME]) is produced from various fats, oils, and greases (FOG) using catalytic transesterification with methanol. These fuels have poor cold‐flow properties depending on the fatty acid (FA) composition of the parent FOG. Improving the cold‐flow properties of biodiesel will enhance its prospects for use during cooler months in moderate temperature climates. This ...
DOI:
10.1002/aocs.12226

14. RpoN1 and RpoN2 play different regulatory roles in virulence traits, flagellar biosynthesis, and basal metabolism in Xanthomonas campestris

Author:
Kaihuai Li; Guichun Wu; Yuling Liao; Quan Zeng; Haihong Wang; Fengquan Liu
Source:
Molecular plant pathology 2020 v.21 no.7 pp. 907-922
ISSN:
1464-6722
Subject:
branched chain fatty acids,   etc   ; Xanthomonas campestris pv. campestris; bacteria; bacterial motility; basal metabolism; biofilm; biosynthesis; host plants; mutants; mutation; plant pathogens; polysaccharides; proteins; quorum sensing; transcription (genetics); virulence;     Show all 16 Subjects
Abstract:
... Homologous regulatory factors are widely present in bacteria, but whether homologous regulators synergistically or differentially regulate different biological functions remains mostly unknown. Here, we report that the homologous regulators RpoN1 and RpoN2 of the plant pathogen Xanthomonas campestris pv. campestris (Xcc) play different regulatory roles with respect to virulence traits, flagellar b ...
DOI:
10.1111/mpp.12938

15. Validation of a Rapid Microwave‐Assisted Extraction Method and GC‐FID Quantification of Total Branched Chain Fatty Acids in Lamb Subcutaneous Adipose Tissue

Author:
Rufielyn S. Gravador; Sabine M. Harrison; Frank J. Monahan; Vasiliki Gkarane; Linda J. Farmer; Nigel P. Brunton
Source:
Journal of food science 2019 v.84 no.1 pp. 80-85
ISSN:
0022-1147
Subject:
branched chain fatty acids,   etc   ; adipose tissue; derivatization; detection limit; gas chromatography; lamb meat; microwave treatment; toxic substances;     Show all 8 Subjects
Abstract:
... A rapid microwave‐assisted extraction and derivatization of three branched chain fatty acids (BCFA): 4‐methyloctanoic acid (MOA), 4‐ethyloctanoic acid (EOA) and 4‐methylnonanoic acid (MNA) from subcutaneous adipose tissue (SAT) of lamb was developed and validated. Linearity was excellent (R² > 0.99), and the limits of detection and quantification (μg/mL) were between 0.03 to 0.05 and 0.04 to 0.06, ...
DOI:
10.1111/1750-3841.14410

16. Short communication: Odd-chain and branched-chain fatty acid concentrations in bovine colostrum and transition milk and their stability under heating and freezing treatments

Author:
Hangshu Xin; Yang Xu; Yanhong Chen; Guanqun Chen; Michael A. Steele; Le Luo Guan
Source:
Journal of dairy science 2020 v.103 no.12 pp. 11483-11489
ISSN:
0022-0302
Subject:
branched chain fatty acids,   etc   ; Holstein; animal and human health; calving; cow colostrum; dairy calves; dairy cows; fatty acid composition; freezing; gas chromatography; heat; milk; milking; odd chain fatty acids;     Show all 14 Subjects
Abstract:
... Although odd-chain fatty acids (OCFA) and branched-chain fatty acids (BCFA) are found in bovine milk and have some positive influences on human and animal health, their concentrations in bovine colostrum and transition milk have not been reported. In this study, we reported the OCFA and BCFA concentrations in colostrum and transition milk and their stability after heating or freezing treatments (o ...
DOI:
10.3168/jds.2020-18994

17. Structural Identification of Monounsaturated Branched Chain Fatty Acid Methyl Esters by Combination of Electron Ionization and Covalent Adduct Chemical Ionization Tandem Mass Spectrometry

Author:
Zhen Wang; Dong Hao Wang; Hui Gyu Park; Herbert J. Tobias; Kumar S. D. Kothapalli; J. Thomas Brenna
Source:
Analytical chemistry 2019 v.91 no.23 pp. 15147-15154
ISSN:
1520-6882
Subject:
branched chain fatty acids,   etc   ; chemical bonding; chemical structure; fatty acid methyl esters; ionization; ions; tandem mass spectrometry; vapor pressure;     Show all 8 Subjects
Abstract:
... Monounsaturated normal fatty acids (n-MUFA) and saturated branched chain fatty acids (BCFA) are structurally characterized by separate tandem mass spectrometry methods for double bond localization and for chain branching in their respective fatty acid methyl ester (FAME) derivatives; however, these methods have never been applied to branched monounsaturated FAME. Here, we report application of ele ...
DOI:
10.1021/acs.analchem.9b03912

18. Fatty acid desaturase 2 (FADS2) but not FADS1 desaturates branched chain and odd chain saturated fatty acids

Author:
Zhen Wang; Hui Gyu Park; Dong Hao Wang; Riki Kitano; Kumar S.D. Kothapalli; J. Thomas Brenna
Source:
Biochimica et biophysica acta 2020 v.1865 no.3 pp. 158572
ISSN:
1388-1981
Subject:
branched chain fatty acids,   etc   ; catalytic activity; enzyme activity; fatty acid composition; genetic vectors; neoplasm cells; neoplasms; odd chain fatty acids; palmitic acid; skin (animal); stearoyl-CoA desaturase; unsaturated fatty acids; wax esters;     Show all 13 Subjects
Abstract:
... Branched chain fatty acids (BCFA) and linear chain/normal odd chain fatty acids (n-OCFA) are major fatty acids in human skin lipids, especially sebaceous gland (SG) wax esters. Skin lipids contain variable amounts of monounsaturated BCFA and n-OCFA, in some reports exceeding over 20% of total fatty acids. Fatty acid desaturase 2 (FADS2) codes for a multifunctional enzyme that catalyzes Δ4-, Δ6- an ...
DOI:
10.1016/j.bbalip.2019.158572

19. Degradation of Peptide-Bound Maillard Reaction Products in Gastrointestinal Digests of Glyoxal-Glycated Casein by Human Colonic Microbiota

Author:
Dan Xu; Lin Li; Xia Zhang; Hong Yao; Mingquan Yang; Zuoqi Gai; Bing Li; Di Zhao
Source:
Journal of agricultural and food chemistry 2019 v.67 no.43 pp. 12094-12104
ISSN:
1520-5118
Subject:
branched chain fatty acids,   etc   ; Maillard reaction products; casein; fermentation; fluorescence; gastrointestinal system; humans; intestinal microorganisms; molecular weight; ribosomal RNA; sequence analysis;     Show all 11 Subjects
Abstract:
... A large portion of Maillard reaction products (MRPs) cannot be absorbed in the upper gut and therefore may be further decomposed and utilized by colonic microbiota (CM). This work reported the stability of UV-absorbent MRPs, fluorescent MRPs and peptide-bound N(ε)-(carboxymethyl)-lysine (CML) in high molecular weight (HMW, >10 kDa), medium molecular weight (MMW, 1–10 kDa), and low molecular weight ...
DOI:
10.1021/acs.jafc.9b03520

20. Enrichment of branched chain fatty acids from lanolin via urea complexation for infant formula use

Author:
Xiaosan Wang; Wang Xiaohan; Yang Chen; Wenhua Jin; Qingzhe Jin; Xingguo Wang
Source:
Lebensmittel-Wissenschaft + Technologie 2020 v.117 pp. -
ISSN:
0023-6438
Subject:
branched chain fatty acids,   etc   ; crystallization; ethanol; fatty acid composition; free fatty acids; human milk fat; infant formulas; infants; lanolin; solvents; temperature; urea;     Show all 12 Subjects
Abstract:
... Branched-chain fatty acids (BCFAs) play a crucial role in infants’ health. Currently, little information is available for BCFAs enrichment technologies. In this study, an improved method was developed for preparation of free fatty acids from lanolin. Afterwards, BCFAs were concentrated from the prepared free fatty acids by urea complexation. The effect of crystallization solvent, solvent/urea rati ...
DOI:
10.1016/j.lwt.2019.108627