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Journal articles on the topic 'Nonenoic acid'

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1

Park, Jeonghan, Jeffrey C. Moore, and Feng Xu. "Asymmetric Synthesis of iso-Boc (S)-2-Amino-8-nonenoic Acid in One Through-Process." Organic Process Research & Development 20, no. 1 (2015): 76–80. http://dx.doi.org/10.1021/acs.oprd.5b00392.

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2

Brichac, Jiri, Ales Honzatko, and Matthew J. Picklo. "Direct and indirect high-performance liquid chromatography enantioseparation of trans-4-hydroxy-2-nonenoic acid." Journal of Chromatography A 1149, no. 2 (2007): 305–11. http://dx.doi.org/10.1016/j.chroma.2007.03.068.

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3

Maruthavanan, Janakiraman, Niels Maness, and Donna Chrz. "(40) A Procedure for Quantitation of Fatty Acid Precursors in Relation to Capsaicinoid Accumulation in Pepper Fruits." HortScience 40, no. 4 (2005): 1029C—1029. http://dx.doi.org/10.21273/hortsci.40.4.1029c.

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The pungency in hot peppers [Capsicum annuum (L.) var. annuum] is mostly due to two capsaicinoids, capsaicin (CAP) and dihydrocapsaicin (DC), which are amide derivatives of vanillylamine and 8-methyl-6-nonenoic acid (E) or 8-methyl-nonanoic acid (A), respectively. During our investigation of the mechanism of capsaicinoid-specific metabolism in pepper fruit, we have developed a method to extract, purify, and quantitate these fatty acids from the free fatty acid pool in placental tissue. Fresh placenta was ground using a mortar and pestle and extracted with diethyl ether. Fatty acids were methan
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4

Mac-Henry, A. Oligie Lucky O. Eduwuirofo Rukevwe M. Iyekekpolor Osarinmwian Oghomwenrhiere C.M. Ejimadu Emmanuel I. Obasuyi Ukeme D. Archibong Oghomwen T. Michael Ruth O. Oghomwen and Osaro Iyekowa. "Phyto-Constituents, GC-MS Analysis and Antifungal Activity of Methanol Extract of Sweet Orange Peels." NIPES Journal of Science and Technology Research 5, no. 2 (2023): 50–57. https://doi.org/10.5281/zenodo.8010039.

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<em>Sweet orange peels have been considered waste materials by most people, however recent scientific studies have revealed adequate potentials to include textile manufacturing, mosquitoes-repellant finish, print transfer medium, antimicrobial agents, water purification, bio adsorbent, bio char and biogas among others. This research is aimed at isolating the oil fraction, screening the phyto constituens and determining the antifungal activity of methanol extract of sweet orange peel. The orange peels were isolated from the orange, grated into pieces and extracted using methanol solvent by soxh
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5

Mantzourani, Christiana, and Maroula G. Kokotou. "Targeted and Suspect Fatty Acid Profiling of Royal Jelly by Liquid Chromatography—High Resolution Mass Spectrometry." Biomolecules 13, no. 3 (2023): 424. http://dx.doi.org/10.3390/biom13030424.

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Royal jelly (RJ) is a bee product produced by the mandibular and hypopharyngeal glands of worker honeybees which has attracted special attention because of its numerous pharmacological activities and its applications to dermatology and cosmetics. In 2020, we demonstrated a liquid chromatography–high resolution mass spectrometry (LC–HRMS) method for the determination of seven medium-chain FFAs in RJ samples. The aim of the present work was to extend our studies on FA profiling of RJ, exploring the presence of common long-chain saturated, mono-unsaturated and poly-unsaturated free FAs in RJ samp
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6

Narasimha Prasad, Bellur Chayapathy, Harishchandra Bhaskar Gururaj, Vinod Kumar, et al. "Influence of 8-Methyl-nonenoic Acid on Capsaicin Biosynthesis in In-Vivo and In-Vitro Cell Cultures ofCapsicumSpp." Journal of Agricultural and Food Chemistry 54, no. 5 (2006): 1854–59. http://dx.doi.org/10.1021/jf052085z.

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7

Murphy, Tonya C., Claire Poppe, James E. Porter, Thomas J. Montine та Matthew J. Picklo Sr. "4-Hydroxy-trans-2-nonenoic acid is a γ-hydroxybutyrate receptor ligand in the cerebral cortex and hippocampus". Journal of Neurochemistry 89, № 6 (2004): 1462–70. http://dx.doi.org/10.1111/j.1471-4159.2004.02442.x.

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8

Wang, Yang, Wei Tong, Wenhui Wang, et al. "Identification of Volatile Organic Compounds and Analysis of Aroma Characteristics in Ten Pear Syrups." Foods 13, no. 20 (2024): 3223. http://dx.doi.org/10.3390/foods13203223.

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Aroma in food plays an important role in food perception and acceptance, which depends on various mixtures of volatile organic compounds (VOCs). Moreover, VOCs are of great significance for aroma identification. In this study, headspace solid-phase microextraction (HS-SPME) combined with gas chromatography–mass spectrometry (GC-MS) technology was used to determine the VOCs in 10 pear syrups. A total of 127 VOCs were quantitatively determined, including 9 common VOCs and 46 characteristic VOCs of 10 pear syrups. The pear syrups were divided into three categories by cluster analysis, and thirty-
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9

Jo, Sooheum, Jin-Hee Kim, Jiyeon Lee, Youngjun Park, and Jaebong Jang. "Azumamides A-E: Isolation, Synthesis, Biological Activity, and Structure–Activity Relationship." Molecules 27, no. 23 (2022): 8438. http://dx.doi.org/10.3390/molecules27238438.

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Cyclic peptides are one of the important chemical groups in the HDAC inhibitor family. Following the success of romidepsin in the clinic, naturally occurring cyclic peptides with a hydrophilic moiety have been intensively studied to test their function as HDAC inhibitors. Azumamides A-E, isolated from Mycale izuensis, are one of the powerful HDAC inhibitor classes. Structurally, azumamides A-E consist of three D-α-amino acids and unnatural β-amino acids such as 3-amino-2-methyl-5-nonenedioic acid-9-amide (Amnna) and 3-amino-2-methyl-5-nonenoic-1,9-diacid (Amnda). Moreover, azumamides have a re
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10

Takayanagi, Hisao, Tadashi Shirasaka, and Yoshiharu Morita. "Efficient Synthesis of (E)-9-Chloro-4-methyl-8-oxo-4-nonenoic Acid from 4-Chloro-2-methyl-2-butene." Synthesis 1991, no. 09 (1991): 722–26. http://dx.doi.org/10.1055/s-1991-26556.

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11

Awl, R. A., E. N. Frankel, D. D. Brooks, and D. Weisleder. "Cyclic fatty esters: Synthesis, characterization, and lipolysis of isomeric triglycerides of 9-(6-propyl-3-cyclohexenyl)(Z)-8-nonenoic acid." Chemistry and Physics of Lipids 41, no. 1 (1986): 65–80. http://dx.doi.org/10.1016/0009-3084(86)90125-8.

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12

Wang, Xiao-jun, Li Zhang, Lana L. Smith-Keenan, Ioannis N. Houpis, and Vittorio Farina. "Efficient Synthesis of (S)-2-(Cyclopentyloxycarbonyl)-amino-8-nonenoic Acid: Key Building Block for BILN 2061, an HCV NS3 Protease Inhibitor." Organic Process Research & Development 11, no. 1 (2007): 60–63. http://dx.doi.org/10.1021/op0601924.

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13

Deutsch, Ynon, Mohamed Samara, Ahmed Nasser, Ilana Berman-Frank, and David Ezra. "Kocuria flava, a Bacterial Endophyte of the Marine Macroalga Bryopsis plumosa, Emits 8-Nonenoic Acid Which Inhibits the Aquaculture Pathogen Saprolegnia parasitica." Marine Drugs 21, no. 9 (2023): 476. http://dx.doi.org/10.3390/md21090476.

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Secondary metabolites—organic compounds that are often bioactive—produced by endophytes, among others, provide a selective advantage by increasing the organism’s survivability. Secondary metabolites mediate the symbiotic relationship between endophytes and their host, potentially providing the host with tolerance to, and protection against biotic and abiotic stressors. Secondary metabolites can be secreted as a dissolved substance or emitted as a volatile. In a previous study, we isolated bioactive endophytes from several macroalgae and tested them in vitro for their ability to inhibit major d
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14

TAKAYANAGI, H., T. SHIRASAKA, and Y. MORITA. "ChemInform Abstract: Efficient Synthesis of (E)-9-Chloro-4-methyl-8-oxo-4-nonenoic Acid from 4-Chloro-2-methyl-2-butene." ChemInform 23, no. 12 (2010): no. http://dx.doi.org/10.1002/chin.199212250.

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15

Karich, Alexander, Fabian Salzsieder, Martin Kluge, Miguel Alcalde, René Ullrich, and Martin Hofrichter. "Conversion of Unsaturated Short- to Medium-Chain Fatty Acids by Unspecific Peroxygenases (UPOs)." Applied Microbiology 3, no. 3 (2023): 826–40. http://dx.doi.org/10.3390/applmicrobiol3030057.

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Eighteen short- to medium-chain monounsaturated fatty acids were screened for hydroxylation and epoxidation using eleven different peroxygenase preparations. Most of these unspecific peroxygenases (UPOs) are secreted by fungal species of the dark-spored basidiomycetous families Psathyrellaceae and Strophariaceae, two belonged to the white-spored genus Marasmius (Marasmiaceae), and one belonged to the ascomycetous family Chaetomiaceae. The fatty acids (FAs) studied were categorized into three groups based on the position of the double bond: (i) terminal unsaturated FAs (between ω and ω-1), (ii)
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16

Sasson. "Fatty Aldehyde Dehydrogenase (ALDH3A2)-Dependent Neutralization of Advanced Lipid Peroxidation End Products (ALEs) at the Bifurcation of Hormetic and Degenerative Pathways in Pancreatic Beta Cells." Proceedings 11, no. 1 (2019): 10. http://dx.doi.org/10.3390/proceedings2019011010.

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Hyperglycemia and hyperlipidemia synergistically and adversely impair insulin secretion and ultimately lead to pancreatic beta cell decomposition. We found that both nutrient overload conditions displace arachidonic and linoleic acids from membrane phospholipids and subject them to free radical-mediated peroxidation and generation of advanced lipid peroxidation end products (ALEs), of which the aldehyde 4-hydroxy-2-nonenal (4-HNE) is prominent. When present at high levels this electrophilic molecule binds covalently to nucleophilic moieties in proteins, phospholipids and nucleic acid, modifies
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17

Clay, Matthew D., Ditte Riber, and Alex G. Fallis. "Competing Diels–Alder intramolecular pathways from cross-conjugated trienes: Fused hydrindenones (bicyclo[4.3.0]nonenones) vs. bridged-ring (bicyclo[3.3.1]nonenones) adducts from a diene-transmissive precursor." Canadian Journal of Chemistry 83, no. 6-7 (2005): 559–68. http://dx.doi.org/10.1139/v05-055.

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D-Isoascorbic acid was converted to the tetraenone 12 to examine its behaviour in the intramolecular Diels–Alder reaction with pendant dienes in a diene-transmissive environment. These studies were directed toward the synthesis of the hydrindenone nucleus via a tether-controlled Diels–Alder reaction. It was anticipated that this would lead to a diene-transmissive strategy for steroids such as Desogestrel®. In contrast to our previous studies with decalins, the dominant isomer (150 °C) was the bicyclo[3.3.1]nonadieneone adduct 23, and none of fused adduct 27 was detected. These products were ac
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18

Xiao, Huibao, Jun Liao, Yongshi Chen та ін. "Effects of Konjac Glucomannan/ε-polylysine Hydrochloride/Ferulic Acid Composite Coating on the Freshness Preservation Performance and Flavor of Refrigerated Sea Bass Fillets". Foods 12, № 3 (2023): 517. http://dx.doi.org/10.3390/foods12030517.

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Coating preservation has a remarkable effect on the preservation of aquatic products. This work prepared a composite coating using konjac glucomannan (KGM) as the film-forming matrix and ε-polylysine hydrochloride (ε-PL) and ferulic acid (FA) as the preservative. Three types of treated sea bass (KGM, KGM-ε-PL, and KGM-ε-PL-FA) and untreated sea bass were stored at 4 °C for 20 days to compare freshness changes under different treatment conditions. The results showed that the surface color and texture of sea bass in refrigerated storage changed dramatically and deteriorated as storage time incre
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19

Milde, Raika, Arianne Schnabel, Toni Ditfe, et al. "Chemical Synthesis of Trans 8-Methyl-6-Nonenoyl-CoA and Functional Expression Unravel Capsaicin Synthase Activity Encoded by the Pun1 Locus." Molecules 27, no. 20 (2022): 6878. http://dx.doi.org/10.3390/molecules27206878.

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Capsaicin, produced by diverse Capsicum species, is among the world’s most popular spices and of considerable pharmaceutical relevance. Although the capsaicinoid biosynthetic pathway has been investigated for decades, several biosynthetic steps have remained partly hypothetical. Genetic evidence suggested that the decisive capsaicin synthase is encoded by the Pun1 locus. Yet, the genetic evidence of the Pun1 locus was never corroborated by functionally active capsaicin synthase that presumably catalyzes an amide bond formation between trans 8-methyl-6-nonenoyl-CoA derived from branched-chain a
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20

Schmidt, Ulrich, Wolfgang Siegel, and Klaus Mundinger. "Total syntheses of jaspamide (jasplakinolide) and geodiamolide A and B - 1. Stereoselective synthesis of (2,4,6,8)-8-hydroxy-2,4,6-trimethyl-4-nonenoicic acid1." Tetrahedron Letters 29, no. 11 (1988): 1269–70. http://dx.doi.org/10.1016/s0040-4039(00)80273-7.

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21

Kapich, Alexander N., Hideki Suzuki, Kolby C. Hirth, et al. "The white rot basidiomycete Gelatoporia subvermispora produces fatty aldehydes that enable fungal manganese peroxidases to degrade recalcitrant lignin structures." Applied and Environmental Microbiology, March 14, 2024. http://dx.doi.org/10.1128/aem.02044-23.

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ABSTRACT The ability of some white rot basidiomycetes to remove lignin selectively from wood indicates that low molecular weight oxidants have a role in ligninolysis. These oxidants are likely free radicals generated by fungal peroxidases from compounds in the biodegrading wood. Past work supports a role for manganese peroxidases (MnPs) in the production of ligninolytic oxidants from fungal membrane lipids. However, the fatty acid alkylperoxyl radicals initially formed during this process are not reactive enough to attack the major structures in lignin. Here, we evaluate the hypothesis that th
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