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1. Ergopeptines Bromocriptine and Ergovaline and the Dopamine Type-2 Receptor Inhibitor Domperidone Inhibit Bovine Equilibrative Nucleoside Transporter 1-like Activity

Author:
Miles, Edwena D.; Xue, Yan; Strickland, James R.; Boling, James A.; Matthews, James C.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9691
ISSN:
0021-8561
Subject:
Festuca arundinacea; Neotyphodium coenophialum; agonists; animal physiology; antagonists; bromocriptine; cattle; dopamine; endophytes; ergovaline; inhibitory concentration 50; kidney cells; kidneys; metabolic inhibitors; metabolism; nucleosides; receptors; transporters
Abstract:
... Neotyphodium coenophialum-infected tall fescue contains ergopeptines. Except for interactions with biogenic amine receptors (e.g., dopamine type-2 receptor, D2R), little is known about how ergopeptines affect animal metabolism. The effect of ergopeptines on bovine nucleoside transporters (NT) was evaluated using Madin-Darby bovine kidney (MDBK) cells. Equilibrative NT1 (ENT1)-like activity account ...
Handle:
10113/59205
DOI:
10.1021/jf201713m
PubMed:
21790119

2. Production of a Novel 9,12-Dihydroxy-10(E)-eicosenoic Acid from Eicosenoic Acid by Pseudomonas aeruginosa PR3

Author:
Back, Ka-Yeon; Sohn, Hye-Ran; Hou, Ching T.; Kim, Hak-Ryul
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9652
ISSN:
0021-8561
Subject:
Fourier transform infrared spectroscopy; Pseudomonas aeruginosa; bacteria; biochemical pathways; biotransformation; enzymes; gas chromatography; mass spectrometry; nuclear magnetic resonance spectroscopy; nutrition; oleic acid; palmitoleic acid; ricinoleic acid; strains; viscosity
Abstract:
... Microbial conversions of unsaturated fatty acids often generate polyhydroxy fatty acids, giving them new properties such as higher viscosity and reactivity. A bacterial strain Pseudomonas aeruginosa (PR3) has been intensively studied to produce mono-, di-, and trihydroxy fatty acids from different 9-cis-monoenoic fatty acids such as oleic acid, ricinoleic acid, and palmitoleic acid. However, from ...
Handle:
10113/59204
DOI:
10.1021/jf202118q
PubMed:
21809883

3. Screening of the Entire USDA Castor Germplasm Collection for Oil Content and Fatty Acid Composition for Optimum Biodiesel Production

Author:
Wang, Ming Li; Morris, J. Bradley; Tonnis, Brandon; Pinnow, David; Davis, Jerry; Raymer, Paul; Pederson, Gary A.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9250
ISSN:
0021-8561
Subject:
Ricinus communis; USDA; biodiesel; castor beans; castor oil; correlation; crop production; energy crops; esters; fatty acid composition; feedstocks; fuel production; gas chromatography; germplasm; germplasm conservation; linoleic acid; linolenic acid; lipid content; nuclear magnetic resonance spectroscopy; oleic acid; palmitic acid; prices; production costs; ricinoleic acid; screening; seeds; stearic acid
Abstract:
... Castor has tremendous potential as a feedstock for biodiesel production. The oil content and fatty acid composition in castor seed are important factors determining the price for production and affecting the key fuel properties of biodiesel. There are 1033 available castor accessions collected or donated from 48 countries worldwide in the USDA germplasm collection. The entire castor collection was ...
Handle:
10113/59203
DOI:
10.1021/jf202949v
PubMed:
21838261

4. Analgesic Effects and Mechanisms of Anti-inflammation of Taraxeren-3-one from Diospyros maritima in Mice

Author:
Chang, Tien-Ning; Huang, Shyh-Shyun; Chang, Yuan-Shiun; Chang, Chi-I; Yang, Hsin-Ling; Deng, Jeng-Shyan; Kuo, Yueh-Hsiung; Huang, Guan-Jhong
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9112-9119
ISSN:
0021-8561
Subject:
Diospyros; Western blotting; analgesics; anti-inflammatory activity; catalase; edema; glutathione peroxidase; ingredients; lambda-carrageenan; liver; mice; models; necrosis; nitric oxide; pain; superoxide dismutase; tumor necrosis factor-alpha
Abstract:
... This study investigated the analgesic effects of taraxeren-3-one, which is an ingredient from Diospyros maritima (DM), using the models of acetic acid-induced writhing response and the formalin test, and its anti-inflammatory effects using the model of λ-carrageenan (Carr)-induced paw edema. Treatment of male ICR mice with taraxeren-3-one inhibited the numbers of writhing response and formalin-ind ...
DOI:
10.1021/jf201375u
PubMed:
21732622

5. Analysis of CoQ10 in Cultivated Tobacco by a High-Performance Liquid Chromatography–Ultraviolet Method

Author:
Stiff, Michael R.; Weissinger, Arthur K.; Danehower, David A.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9054-9058
ISSN:
0021-8561
Subject:
Nicotiana tabacum; cultivars; heart diseases; high performance liquid chromatography; leaves; neurodegenerative diseases; tobacco; ubiquinones
Abstract:
... Coenzyme Q (CoQ) is a naturally occurring lipid-soluble quinone that performs multiple functions in all living cells and has become a popular antioxidant supplement, a coadjuvant in the treatment of heart disease, and the object of study for treating neurodegenerative disorders. Although there are many tools for CoQ analysis of microbial and animal samples, there have been relatively few reports o ...
DOI:
10.1021/jf201130z
PubMed:
21800864

6. Antioxidant Activity and Emulsion-Stabilizing Effect of Pectic Enzyme Treated Pectin in Soy Protein Isolate-Stabilized Oil/Water Emulsion

Author:
Huang, Ping-Hsiu; Lu, Hao-Te; Wang, Yuh-Tai; Wu, Ming-Chang
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9623-9628
ISSN:
0021-8561
Subject:
Aspergillus niger; Citrus; antioxidant activity; emulsifying properties; enzymatic hydrolysis; free radical scavengers; lipid peroxidation; molecular weight; pectins; shelf life; soy protein isolate; thiobarbituric acid-reactive substances
Abstract:
... The antioxidant activity of pectic enzyme treated pectin (PET-pectin) prepared from citrus pectin by enzymatic hydrolysis and its potential use as a stabilizer and an antioxidant for soy protein isolate (SPI)-stabilized oil in water (O/W) emulsion were investigated. Trolox equivalent antioxidant capacity (TEAC) was found to be positively associated with molecular weight (Mw) of PET-pectin and nega ...
DOI:
10.1021/jf202020t
PubMed:
21806056

7. Antiplasmodial and Antitrypanosomal Activity of Pyrethrins and Pyrethroids

Author:
Hata, Yoshie; Zimmermann, Stefanie; Quitschau, Melanie; Kaiser, Marcel; Hamburger, Matthias; Adams, Michael
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9172-9176
ISSN:
0021-8561
Subject:
Plasmodium falciparum; Tanacetum cinerariifolium; Trypanosoma rhodesiense; cytotoxicity; flowers; pyrethrins; rats
Abstract:
... In a screen of 1800 plant and fungal extracts for antiplasmodial, antitrypanosomal, and leishmanicidal activity, the n-hexane extract of Chrysanthemum cinerariifolium (Trevir.) Vis. flowers showed strong activity against Plasmodium falciparum. We isolated the five pyrethrins [i.e., pyrethrin II (1), jasmolin II (2), cinerin II (3), pyrethrin I (4), and jasmolin I (5)] from this extract. These were ...
DOI:
10.1021/jf201776z
PubMed:
21786822

8. Anti-Stress Effects of Glycine tomentella Hayata in Tilapia: Inhibiting COX-2 Expression and Enhancing EPA Synthesis in Erythrocyte Membrane and Fish Growth

Author:
Chuang, Whae-Ling; Pan, Bonnie Sun
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9532-9541
ISSN:
0021-8561
Subject:
Glycine tomentella; ammonium chloride; animal growth; animal models; blood viscosity; cold stress; eicosapentaenoic acid; erythrocytes; ethanol; fish; hemoglobin; industry; lipopolysaccharides; stress tolerance
Abstract:
... The objective of this study was to elucidate the in vivo effects of the ethanol extract of wooly Glycine tomentella Hayata (GTE) root on tilapia to elucidate whether GTE has antistress activity. Tilapia as an animal model were fed with or without GTE, then injected with lipopolysaccharide (LPS) or ammonium chloride (NH4Cl). The tilapia were exposed to 100 mg/L of aqueous NH4Cl, and/or acute cold s ...
DOI:
10.1021/jf2017308
PubMed:
21732613

9. Assessment of the Determination of Azodicarbonamide and Its Decomposition Product Semicarbazide: Investigation of Variation in Flour and Flour Products

Author:
Ye, Jing; Wang, Xiang-Hong; Sang, Ya-Xin; Liu, Qian
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9313-9318
ISSN:
0021-8561
Subject:
carcinogenicity; detection limit; flour; food additives; food safety; food security; high performance liquid chromatography; human health; isotope dilution technique; mass spectrometry; neoplasms
Abstract:
... Azodicarbonamide, as a bleaching agent and improving agent, is a permitted food additive in certain countries and can be determined by high-performance liquid chromatography. However, it partially degrades with the heat of processing to form trace amounts of semicarbazide, which shows carcinogenicity and also has been shown to cause tumors. The concentration of semicarbazide in azodicarbonamide-tr ...
DOI:
10.1021/jf201819x
PubMed:
21786817

10. Bioactivities and Antiradical Properties of Millet Grains and Hulls

Author:
Chandrasekara, Anoma; Shahidi, Fereidoon
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9563-9571
ISSN:
0021-8561
Subject:
DNA; Paspalum scrobiculatum; Pennisetum glaucum; antioxidant activity; cell proliferation; coumaric acids; functional foods; health promotion; high performance liquid chromatography; hulls; low density lipoprotein cholesterol; millets; oxidation; whole grain foods
Abstract:
... Antioxidant activities of phenolic extracts of kodo and pearl millet whole grains, dehulled grains, and hulls were examined by monitoring inhibition of radical-induced DNA scission, human low-density lipoprotein (LDL) cholesterol, and phospholipid liposome oxidation. Total phenolic content (TPC), hydroxyl and peroxyl radical inhibition, and antiproliferative activities against HT-29 cells were als ...
DOI:
10.1021/jf201849d
PubMed:
21770397

11. Bioactivity-Guided Fractionation for the Butyrylcholinesterase Inhibitory Activity of Furanocoumarins from Angelica archangelica L. Roots and Fruits

Author:
Wszelaki, Natalia; Paradowska, Katarzyna; Jamróz, Marta K.; Granica, Sebastian; Kiss, Anna K.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9186-9193
ISSN:
0021-8561
Subject:
Angelica archangelica; acetylcholinesterase; fractionation; fruits; hexane; inhibitory concentration 50; psoralens; roots
Abstract:
... Isolation and identification of the inhibitors of butyrylcholinesterase (BChE), obtained from the extracts of roots and fruits of Angelica archangelica L., are reported. Our results confirmed the weak inhibitory effect of Angelica roots on acetylcholinesterase activity. BChE inhibition was much more pronounced at a concentration of 100 μg/mL for hexane extracts and attained a higher rate than 50%. ...
DOI:
10.1021/jf201971s
PubMed:
21786787

12. Biochemical and Functional Characterization of an Albumin Protein Belonging to the Hemopexin Superfamily from Lens culinaris Seeds

Author:
Scarafoni, Alessio; Gualtieri, Elisa; Barbiroli, Alberto; Carpen, Aristodemo; Negri, Armando; Duranti, Marcello
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9637-9644
ISSN:
0021-8561
Subject:
Lens culinaris; albumins; allergenicity; binding properties; denaturation; foods; heat treatment; human health; peas; seeds; sequence homology; temperature; thiamin
Abstract:
... The present paper reports the purification and biochemical characterization of an albumin identified in mature lentil seeds with high sequence similarity to pea PA2 . These proteins are found in many edible seeds and are considered potentially detrimental for human health due to the potential allergenicity and lectin-like activity. Thus, the description of their possible presence in food and the a ...
DOI:
10.1021/jf202026d
PubMed:
21819123

13. Biomass Fractionation for the Biorefinery: Heteronuclear Multiple Quantum Coherence–Nuclear Magnetic Resonance Investigation of Lignin Isolated from Solvent Fractionation of Switchgrass

Author:
Bozell, Joseph J.; O'Lenick, C.J.; Warwick, Stacy
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9232-9242
ISSN:
0021-8561
Subject:
Panicum virgatum; biomass; biorefining; fractionation; lignin; nuclear magnetic resonance spectroscopy; sulfuric acid
Abstract:
... Two-dimensional heteronuclear multiple quantum coherence and quantitative 13C nuclear magnetic resonance spectroscopy are used to identify the structural features of lignin isolated from solvent fractionation of switchgrass at several different severities. The spectra are consistent with a progressive deconstruction of the lignin as the fractionation severity increases, with structural units invol ...
DOI:
10.1021/jf201850b
PubMed:
21793554

14. Botrytone, a New Naphthalenone Pentaketide Produced by Botrytis fabae, the Causal Agent of Chocolate Spot Disease on Vicia faba

Author:
Cimmino, Alessio; Villegas-Fernández, Angel M.; Andolfi, Anna; Melck, Dominique; Rubiales, Diego; Evidente, Antonio
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9201-9206
ISSN:
0021-8561
Subject:
Botrytis fabae; Vicia faba; chocolate; faba beans; host plants; leaves; metabolites; phytotoxicity; phytotoxins; spectroscopy
Abstract:
... A strain of Botrytis fabae isolated from faba bean (Vicia faba L.) plants displaying clear chocolate spot disease symptoms produced phytotoxic metabolites in vitro. The phytotoxins isolated from the culture filtrate organic extract were characterized by spectroscopic and optical methods. A new naphthalenone pentaketide, named botrytone, was isolated and characterized as (4R)-3,4-dihydro-4,5,8-trih ...
DOI:
10.1021/jf202089y
PubMed:
21780794

15. Changes in Phenolic Content of Tomato Products during Storage

Author:
Vallverdú-Queralt, Anna; Arranz, Sara; Medina-Remón, Alexander; Casals-Ribes, Isidre; Lamuela-Raventos, Rosa M.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9358-9365
ISSN:
0021-8561
Subject:
acids; antioxidant activity; ionization; liquid chromatography; mass spectrometry; polyphenols; quercetin; tomato juice
Abstract:
... The effect of storage on the total polyphenol content and individual phenolic compounds as well as on the hydrophilic antioxidant capacity of ketchups and tomato juices was studied. The total polyphenol content was determined using the Folin-Ciocalteu assay, and the antioxidant capacity of the hydrophilic fraction was determined using DPPH and ABTS+ assays. Individual polyphenols were identified a ...
DOI:
10.1021/jf202140j
PubMed:
21819081

16. Characterization of Phenolic Components in Polar Extracts of Eucalyptus globulus Labill. Bark by High-Performance Liquid Chromatography–Mass Spectrometry

Author:
Santos, Sónia A.O.; Freire, Carmen S.R.; Domingues, M. Rosário M.; Silvestre, Armando J.D.; Pascoal Neto, Carlos
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9386-9393
ISSN:
0021-8561
Subject:
Eucalyptus globulus; acids; bark; catechin; ionization; luteolin; mass spectrometry; methanol; phenolic compounds; phloridzin
Abstract:
... High-performance liquid chromatography-electrospray ionization mass spectrometry (HPLC-ESI-MS) and tandem mass spectrometry (MSn) were used to investigate the phenolic constituents in methanol, water, and methanol/water extracts of Eucalyptus globulus Labill. bark. Twenty-nine phenolic compounds were identified, 16 of them referenced for the first time as constituents of E. globulus bark, namely, ...
DOI:
10.1021/jf201801q
PubMed:
21761864

17. Characterization of Stearidonic Acid Soybean Oil Enriched with Palmitic Acid Produced by Solvent-free Enzymatic Interesterification

Author:
Teichert, Sarah A.; Akoh, Casimir C.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9588-9595
ISSN:
0021-8561
Subject:
crystallization; distillation; enzymatic interesterification; free fatty acids; gamma-linolenic acid; iodine; melting; omega-3 fatty acids; oxidative stability; palmitic acid; saponification; soybean oil; structured lipids; tocopherols; triacylglycerols; tripalmitin
Abstract:
... Stearidonic acid soybean oil (SDASO) is a plant source of n-3 polyunsaturated fatty acids (n-3 PUFAs). Solvent-free enzymatic interesterification was used to produce structured lipids (SLs) in a 1 L stir-batch reactor with a 1:2 substrate mole ratio of SDASO to tripalmitin, at 65 °C for 18 h. Two SLs were synthesized using immobilized lipases, Novozym 435 and Lipozyme TL IM. Free fatty acids (FFAs ...
DOI:
10.1021/jf201992k
PubMed:
21830790

18. Chemical Composition of Natural and Polyphenol-free Apple Pomace and the Effect of This Dietary Ingredient on Intestinal Fermentation and Serum Lipid Parameters in Rats

Author:
Kosmala, Monika; Kołodziejczyk, Krzysztof; Zduńczyk, Zenon; Juśkiewicz, Jerzy; Boros, Danuta
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9177-9185
ISSN:
0021-8561
Subject:
acetone; ammonia; apple pomace; blood; blood lipids; cholesterol; dietary fiber; dietary supplements; fermentation; flavonoids; high density lipoprotein; ingredients; pH; polyphenols; rats; short chain fatty acids; triacylglycerols
Abstract:
... Unprocessed pomace containing 61% of dietary fiber (DF) and 0.23% of polyphenols (PP) and ethanol- or ethanol/acetone-extracted pomaces containing 66% DF and 0.10% PP and 67% DF and 0.01% PP, respectively, were subjected to a 4 week study in rats. The aim of the study was assessing the advantages of dietary supplementation with the above pomaces. To measure the animal response to dietary treatment ...
DOI:
10.1021/jf201950y
PubMed:
21805963

19. Cloning and Characterization of an 11S Legumin, Car i 4, a Major Allergen in Pecan

Author:
Sharma, Girdhari M.; Irsigler, Andre; Dhanarajan, Pushparani; Ayuso, Rosalia; Bardina, Luda; Sampson, Hugh A.; Roux, Kenneth H.; Sathe, Shridhar K.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9542-9552
ISSN:
0021-8561
Subject:
Escherichia coli; allergens; almonds; cDNA libraries; complementary DNA; cross reaction; epitopes; genes; immunoglobulin E; legumin; mass spectrometry; models; patients; pecans; peptides; trees
Abstract:
... Among tree nut allergens, pecan allergens remain to be identified and characterized. The objective was to demonstrate the IgE-binding ability of pecan 11S legumin and characterize its sequential IgE-binding epitopes. The 11S legumin gene was amplified from a pecan cDNA library and expressed as a fusion protein in Escherichia coli. The native 11S legumin in pecan extract was identified by mass spec ...
DOI:
10.1021/jf2017447
PubMed:
21718052

20. Cloning of a Novel L-Amino Acid oxidases Oxidase from Trichoderma harzianum ETS 323 and Bioactivity Analysis of Overexpressed l-Amino Acid Oxidase

Author:
Cheng, Chi-Hua; Yang, Chia-Ann; Liu, Shu-Ying; Lo, Chaur-Tsuen; Huang, Hsiou-Chen; Liao, Fang-Chin; Peng, Kou-Cheng
Source:
Journal of agricultural and food chemistry 2011 v.59 no.17 pp. 9142-9149
ISSN:
0021-8561
Subject:
temperature; food spoilage; Escherichia coli; snakes; complementary DNA; substrate specificity; polyacrylamide gel electrophoresis; microorganisms; amino acid sequences; pH; Trichoderma lixii; molecular weight; metal ions; circular dichroism spectroscopy; antibacterial properties
Abstract:
... L-Amino acid oxidases (L-AAOs) have been isolated from many organisms, such as snake, and are known to have antibacterial activity. To the best of the authors' knowledge, this is the first report of the cloning of cDNA encoding a novel Trichoderma harzianum ETS 323 L-amino acid oxidase (Th-L-AAOs). The protein was overexpressed in Escherichia coli and purified to homogeneity. Comparisons of its de ...
DOI:
10.1021/jf201598z