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1

Uttry, Alexander, and Manuel van Gemmeren. "Direct C(sp3)–H Activation of Carboxylic Acids." Synthesis 52, no. 04 (2019): 479–88. http://dx.doi.org/10.1055/s-0039-1690720.

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Carboxylic acids are important in a variety of research fields and applications. As a result, substantial efforts have been directed towards the C–H functionalization of such compounds. While the use of the carboxylic acid moiety as a native directing group for C(sp2)–H functionalization reactions is well established, as yet there is no general solution for the C(sp3)–H activation of aliphatic carboxylic acids and most endeavors have instead relied on the introduction of stronger directing groups. Recently however, novel ligands, tools, and strategies have emerged, which enable the use of free
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2

Siggel, Michele R., and T. Darrah Thomas. "Why are organic acids stronger acids than organic alcohols?" Journal of the American Chemical Society 108, no. 15 (1986): 4360–63. http://dx.doi.org/10.1021/ja00275a022.

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3

Yang, Xiaoyan, Chuandong Zhang, Haiping Gu, Xiangwei Chen, and Erhui Guo. "Organic acids promote phosphorus release from Mollisols with different organic matter contents." Soil and Water Research 16, No. 1 (2020): 59–66. http://dx.doi.org/10.17221/140/2019-swr.

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Organic acids could improve the phosphorus (P) availability through enhancing the release of inorganic phosphorus (P<sub>i</sub>) in the soil. However, the effects of organic acids on the P<sub>i</sub> release are still poorly understood, especially from soils with different organic matter contents. Here, a biochemically produced humic acid and P fertiliser were added to the soil to modify the content of the soil organic matter (SOM) and soil P, respectively. And then the soil samples were incubated at 25 °C for 30 days. The release of P<sub>i</sub> fraction
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N.V., Zaimenko, and Ivanytska B.O. "The influence of organic acids on growth processes in plants with different ecomorphotype." Plant Introduction 59 (September 1, 2013): 108–14. https://doi.org/10.5281/zenodo.1585272.

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The are results of tartaric, succinic, acetic, oxalic acids effects on growth processes in plants are shown. The potential to control the growth processes and physiological parameters in plants with different ecomorphotypes types of CO<sub>2</sub> metabolism by application of the organic acids in 0.001&ndash;0.01 % concentration ware proved.
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Olena, Kovaliova, Tchursinov Yuriy, Kalyna Viktoriia, Khromenko Tatyana, and Kunitsia Ekaterina. "INVESTIGATION OF THE INTENSIVE TECHNOLOGY OF FOOD SPROUTS USING ORGANIC ACIDS." EUREKA: Life Sciences 2 (March 31, 2020): 45–53. https://doi.org/10.21303/2504-5695.2020.001204.

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The features of the intensive technology of getting food sprouts with organic acids as an intensifier of germination were studied. The aim was to establish the features of the intensive technology of producing sprouts of different crops with using organic acids at germination (butanedioic, 3-pyridine carbonic, pteroylglutamic). It is important to search new and safe germination stimulators of universal use. Such substances are just the studied organic acids, because positive changes of quality parameters of a ready product are traced at their use in the sprout technology. There was studied the
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6

Ergönül, P. G., and C. Nergiz. "Determination of organic acids in olive fruit by HPLC." Czech Journal of Food Sciences 28, No. 3 (2010): 202–5. http://dx.doi.org/10.17221/1379-cjfs.

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Organic acids (oxalic, citric, malic, and succinic) contents of Domat, Memecik and Uslu varieties of olives grown in Turkey were investigated using HPLC method. Organic acids were extracted from olives with water-methanol mixture solution 75:25 (v/v) and were analysed through KC-118 ion-exchange column using UV absorbance detector at 214 nm. The mobile phase was phosphoric acid (0.1%, w/v). The recovery values of the organic acids added into olive fruit samples were 92.8%, 98.75%, 110%, and 86% for oxalic, citric, malic, and succinic acids, respectively.
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Yong, Raymond N., and Diana Mourato. "Extraction and characterization of organics from two Champlain Sea subsurface soils." Canadian Geotechnical Journal 25, no. 3 (1988): 599–607. http://dx.doi.org/10.1139/t88-066.

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The focus of this investigation is to establish whether organic materials are present in subsurface soils in measurable and significant quantities. Two subsurface soils from the Champlain Sea region were chosen for study. Organic carbon concentrations of 0.5% as total organic carbon (TOC) were detected in the soils studied at depths up to 14.2 m. The extraction and subsequent analyses of organic compounds permitted one to classify these as humic acids, fulvic acids, humins, and nonhumic materials. Extraction of these subsurface soil organics was achieved using a modified HCl–NaOH extraction me
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8

Gladkikh, I. F., Iu V. Danilenko, and S. V. Pestrikov. "ORGANIC ACIDS OF ASMOL." Oil and Gas Business, no. 4 (August 2015): 362–73. http://dx.doi.org/10.17122/ogbus-2015-4-362-373.

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9

Navrotsky, Alexandra, Richard Hervig, James Lyons, Dong-Kyun Seo, Everett Shock, and Albert Voskanyan. "Cooperative formation of porous silica and peptides on the prebiotic Earth." Proceedings of the National Academy of Sciences 118, no. 2 (2020): e2021117118. http://dx.doi.org/10.1073/pnas.2021117118.

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Modern technology has perfected the synthesis of catalysts such as zeolites and mesoporous silicas using organic structure directing agents (SDA) and their industrial use to catalyze a large variety of organic reactions within their pores. We suggest that early in prebiotic evolution, synergistic interplay arose between organic species in aqueous solution and silica formed from rocks by dynamic dissolution–recrystallization. The natural organics, for example, amino acids, small peptides, and fatty acids, acted as SDA for assembly of functional porous silica structures that induced further poly
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10

Taylor, Agnes R., Amanda Albright Olsen, Elisabeth M. Hausrath, Brian J. Olsen, and Dawn Cardace. "The Role of Sulfuric Acid, Abiotic–Organic Acids, and Biotic Acids on Serpentinite Dissolution and Trace Metal Release." Minerals 14, no. 3 (2024): 256. http://dx.doi.org/10.3390/min14030256.

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Organic acids produced by biota have been shown to accelerate the dissolution of minerals, possibly creating biosignatures in either reacting solutions or the solid materials. We tested aqueous alteration of serpentinite in three groups of solutions: inorganic acids, organic acids created through abiotic processes (termed “abiotic–organics”), and organic acids created through biotic processes (termed “biotic acids”) over a range of temperatures relevant to conditions on Mars and Europa. A total of 48 batch reactor experiments were carried out at 0 °C, 22 °C, and 62 °C in 16 different acids at
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11

Yaremenko, Ivan A., Peter S. Radulov, Yulia Yu Belyakova, Dmitriy I. Fomenkov, Svetlana B. Tsogoeva, and Alexander O. Terent’ev. "Lewis Acids and Heteropoly Acids in the Synthesis of Organic Peroxides." Pharmaceuticals 15, no. 4 (2022): 472. http://dx.doi.org/10.3390/ph15040472.

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Organic peroxides are an important class of compounds for organic synthesis, pharmacological chemistry, materials science, and the polymer industry. Here, for the first time, we summarize the main achievements in the synthesis of organic peroxides by the action of Lewis acids and heteropoly acids. This review consists of three parts: (1) metal-based Lewis acids in the synthesis of organic peroxides; (2) the synthesis of organic peroxides promoted by non-metal-based Lewis acids; and (3) the application of heteropoly acids in the synthesis of organic peroxides. The information covered in this re
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12

Campolo, Orlando, Antonino Malacrinò, Francesca Laudani, et al. "Field efficacy of two organic acids against Varroa destructor." Entomologia Generalis 36, no. 3 (2017): 251–60. http://dx.doi.org/10.1127/entomologia/2017/0430.

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13

Chon, Kangmin, Jaeweon Cho, and Ho Kyong Shon. "Advanced characterization of algogenic organic matter, bacterial organic matter, humic acids and fulvic acids." Water Science and Technology 67, no. 10 (2013): 2228–35. http://dx.doi.org/10.2166/wst.2013.118.

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Advanced characterization techniques of organic matter, including bulk organic characterization, size-exclusion chromatography, three-dimensional excitation–emission matrix, Fourier transform infrared spectroscopy, and fractionations using Amberlite XAD-8/4 resins, were used to investigate differences and similarities in the physicochemical properties of four different organic matter, namely algogenic organic matter (AOM), bacterial organic matter (BOM), Suwanee River humic acids (SRHA) and Suwanee River fulvic acids (SRFA). From the comparison of characteristics of the AOM, BOM, SRHA, and SRF
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14

Yatavelli, R. L. N., H. Stark, S. L. Thompson, et al. "Semicontinuous measurements of gas–particle partitioning of organic acids in a ponderosa pine forest using a MOVI-HRToF-CIMS." Atmospheric Chemistry and Physics 14, no. 3 (2014): 1527–46. http://dx.doi.org/10.5194/acp-14-1527-2014.

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Abstract. Hundreds of gas- and particle-phase organic acids were measured in a rural ponderosa pine forest in Colorado, USA, during BEACHON-RoMBAS (Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics &amp;amp; Nitrogen – Rocky Mountain Biogenic Aerosol Study). A recently developed micro-orifice volatilization impactor high-resolution time-of-flight chemical ionization mass spectrometer (MOVI-HRToF-CIMS) using acetate (CH3C(O)O−) as the reagent ion was used to selectively ionize and detect acids semicontinuously from 20 to 30 August 2011, with a measurement time resolut
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15

Yatavelli, R. L. N., H. Stark, S. L. Thompson, et al. "Semi-continuous measurements of gas/particle partitioning of organic acids in a ponderosa pine forest using a MOVI-HRToF-CIMS." Atmospheric Chemistry and Physics Discussions 13, no. 6 (2013): 17327–74. http://dx.doi.org/10.5194/acpd-13-17327-2013.

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Abstract. Hundreds of gas and particle phase organic acids were measured in a rural ponderosa pine forest in Colorado, USA, during the Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics and Nitrogen – Rocky Mountain Biogenic Aerosol Study (BEACHON-RoMBAS). A recently developed Micro-Orifice Volatilization Impactor High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer (MOVI-HRToF-CIMS) using acetate (CH3C(O)O-) as the reagent ion was used to selectively ionize and detect acids semi-continuously from 20–30 August 2011, with a measurement time resolution o
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16

Tsikas, Dimitrios, and Alexander A. Zoerner. "Analysis of eicosanoids, amino acids, organic acids, and microRNAs." Journal of Chromatography B 964 (August 2014): vii—viii. http://dx.doi.org/10.1016/j.jchromb.2014.06.001.

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17

Partanen, Kirsi, Jarkko K. Niemi, and Timo Karhula. "Organic Acids in Pig Diets." Recent Advances in Animal Nutrition 2009, no. 1 (2010): 257–85. http://dx.doi.org/10.5661/recadv-09-257.

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18

Mattey, Michael. "The Production of Organic Acids." Critical Reviews in Biotechnology 12, no. 1-2 (1992): 87–132. http://dx.doi.org/10.3109/07388559209069189.

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19

Buijse, Marten, Peter de Boer, Bert Breukel, and Gerardo Burgos. "Organic Acids in Carbonate Acidizing." SPE Production & Facilities 19, no. 03 (2004): 128–34. http://dx.doi.org/10.2118/82211-pa.

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20

Tikhonova, Anastasia Nikolaevna, Natalia Mikhailovna Ageyeva, Alla Andreyevna Abakumova, Svetlana Aleksandrovna Biryukova, and Ekaterina Vladimirovna Globa. "ORGANIC ACIDS OF GRAPE POMACE." Fruit growing and viticulture of South Russia 2, no. 62 (2020): 176–88. http://dx.doi.org/10.30679/2219-5335-2020-2-62-176-188.

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21

Barth, Tanja. "Organic acids in geological processes." Organic Geochemistry 23, no. 4 (1995): 367–68. http://dx.doi.org/10.1016/0146-6380(95)90061-6.

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22

Land, L. S. "Organic acids in geological processes." Earth-Science Reviews 39, no. 1-2 (1995): 128–29. http://dx.doi.org/10.1016/0012-8252(95)90015-2.

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23

Oelkers, Eric H. "Organic Acids in Aquatic Ecosystems." Geochimica et Cosmochimica Acta 55, no. 3 (1991): 928. http://dx.doi.org/10.1016/0016-7037(91)90358-c.

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24

Helas, G. "Organic acids in clean atmospheres." Fresenius' Zeitschrift für analytische Chemie 333, no. 7 (1989): 700. http://dx.doi.org/10.1007/bf00476558.

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25

Karovičová, J., J. Polonský, and P. Šimko. "Organic acids in malt sprouts." Food / Nahrung 36, no. 1 (1992): 93–95. http://dx.doi.org/10.1002/food.19920360115.

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26

Yang, Chenxi, Xia Sheng, Ling Zhang, Jiang Yu, and Dayun Huang. "Arylacetic Acids in Organic Synthesis." Asian Journal of Organic Chemistry 9, no. 1 (2019): 23–41. http://dx.doi.org/10.1002/ajoc.201900583.

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27

MATO, INÉS, JOSÉ F. HUIDOBRO, JESÚS SIMAL-LOZANO, and M. TERESA SANCHO. "Significance of Nonaromatic Organic Acids in Honey." Journal of Food Protection 66, no. 12 (2003): 2371–76. http://dx.doi.org/10.4315/0362-028x-66.12.2371.

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Although organic acids represent &amp;lt;0.5% of honey's constituents, they make important contributions to the organoleptic, physical, and chemical properties of honey. To date, approximately 30 nonaromatic organic acids have been identified in honey, but relatively little attention has been paid to these components. This article reviews the current literature related to the significance of nonaromatic organic acids in honey; it was written with a goal of attracting researchers to study these interesting honey components. Previous research contributions on nonaromatic organic acids in honey m
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28

Herman, David C., Phillip M. Fedorak, Mike D. MacKinnon, and J. W. Costerton. "Biodegradation of naphthenic acids by microbial populations indigenous to oil sands tailings." Canadian Journal of Microbiology 40, no. 6 (1994): 467–77. http://dx.doi.org/10.1139/m94-076.

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Organic acids, similar in structure to naphthenic acids, have been associated with the acute toxicity of tailings produced by the oil sands industry in northeastern Alberta, Canada. Bacterial cultures enriched from oil sands tailings were found to utilize as their sole carbon source both a commercial mixture of naphthenic acids and a mixture of organic acids extracted from oil sands tailings. Gas chromatographic analysis of both the commercial naphthenic acids and the extracted organic acids revealed an unresolved "hump" formed by the presence of many overlapping peaks. Microbial activity dire
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GIANNENAS (Η. ΓΙΑΝΝΕΝΑΣ), I. A. "Organic acids in pig and poultry nutrition." Journal of the Hellenic Veterinary Medical Society 57, no. 1 (2017): 51. http://dx.doi.org/10.12681/jhvms.15009.

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In this review article, the use of organic acids as feed additives is being examined in pig and poultry nutrition. The aim of this article was to evaluate the effect of organic acids and their salts on pig and poultry performance, to describe the organic acids used in animal nutrition, to discuss the route of administration and to investigate the mode of their action. The most widely used organic acids are formic, acetic, propionic, fumarie, citric, sorbic and butyric acid, and their salts as well. These organic acids are administered mainly through the feed, but they may be administered throu
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Karpiński, Tomasz M., and Marcin Ożarowski. "Plant Organic Acids as Natural Inhibitors of Foodborne Pathogens." Applied Sciences 14, no. 14 (2024): 6340. http://dx.doi.org/10.3390/app14146340.

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Background: Foodborne infections affect approximately 600 million people annually. Simultaneously, many plants contain substances like organic acids, which have antimicrobial activity. The aim of this study was to examine the effects of 21 organic acids, naturally occurring in plants, on four foodborne bacteria (Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Salmonella enterica Typhimurium) and two fungi (Geotrichum candidum and Penicillium candidum). Methods: The minimal inhibitory concentrations (MIC) of the organic acids against foodborne bacteria and in silico toxicit
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Chianese, Simeone, Angelo Fenti, Pasquale Iovino, Dino Musmarra, and Stefano Salvestrini. "Sorption of Organic Pollutants by Humic Acids: A Review." Molecules 25, no. 4 (2020): 918. http://dx.doi.org/10.3390/molecules25040918.

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Humic acids (HA) are promising green materials for water and wastewater treatment. They show a strong ability to sorb cationic and hydrophobic organic pollutants. Cationic compounds interact mainly by electrostatic interaction with the deprotonated carboxylic groups of HA. Other functional groups of HA such as quinones, may form covalent bonds with aromatic ammines or similar organic compounds. Computational and experimental works show that the interaction of HA with hydrophobic organics is mainly due to π–π interactions, hydrophobic effect and hydrogen bonding. Several works report that sorbi
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Urra, J., P. Poirrier, R. Chamy, J. Segovia, and Y. Lesty. "Analysis of the methodology to determine anaerobic toxicity: evaluation of main compounds present in wastewater treatment plants (WWTPs)." Water Science and Technology 57, no. 6 (2008): 857–62. http://dx.doi.org/10.2166/wst.2008.105.

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The influence of the concentration of biomass on the level of inhibition and anaerobic degradation kinetics in batch systems was studied with toxic compounds that can generate destabilization in the operation of sludge anaerobic digesters. The compounds were grouped in four families; long chain fatty acids, polycyclic aromatic hydrocarbons, linear alkylbenzene sulphonates and organic acids. For the organic acids, there is no effect due to the biomass concentration variation, therefore it is a competitive inhibition; but that doesn't happen with the remaining compounds, where there is a depende
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Wasielewska, Marta, Anna Banel, and Bogdan Zygmunt. "Capillary Electrophoresis in Determination of Low Molecular Mass Organic Acids." International Journal of Environmental Science and Development 5, no. 4 (2014): 417–25. http://dx.doi.org/10.7763/ijesd.2014.v5.520.

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34

Bayraktar, V. N. "ORGANIC ACIDS CONCENTRATION IN WINE STOCKS AFTER Saccharomyces cerevisiae FERMENTATION." Biotechnologia Acta 6, no. 2 (2013): 97–106. http://dx.doi.org/10.15407/biotech6.02.097.

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35

Vera-Álava, José Olmedo, José Gregorio Arteaga-Solórzano, and Sixto Leonardo Reyna-Gallegos. "Organic acids, microbiota, gut health and productive response in broilers chickens." Revista Colombiana de Ciencia Animal - RECIA 15, no. 2 (2023): e1019. http://dx.doi.org/10.24188/recia.v15.n2.2023.1019.

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Since the middle of the last century, the use of antibiotic growth promoters in feed has improved the performance of several food-producing animal species. However, bacterial resistance to these drugs threatens public health and has led to their prohibition in animal feed. This has increased enteric problems in broilers and consequently the use of antibiotics for therapeutic purposes. In this context, several alternatives to antibiotic growth promoters have been proposed, among them organic acids, which, according to their physical and chemical properties, modify the composition of the intesti
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36

Nah, Theodora, Hongyu Guo, Amy P. Sullivan, et al. "Characterization of aerosol composition, aerosol acidity, and organic acid partitioning at an agriculturally intensive rural southeastern US site." Atmospheric Chemistry and Physics 18, no. 15 (2018): 11471–91. http://dx.doi.org/10.5194/acp-18-11471-2018.

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Abstract. The implementation of stringent emission regulations has resulted in the decline of anthropogenic pollutants including sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon monoxide (CO). In contrast, ammonia (NH3) emissions are largely unregulated, with emissions projected to increase in the future. We present real-time aerosol and gas measurements from a field study conducted in an agriculturally intensive region in the southeastern US during the fall of 2016 to investigate how NH3 affects particle acidity and secondary organic aerosol (SOA) formation via the gas–particle partiti
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Rao, Muhammad Junaid, Mingzheng Duan, Jihong Wang, et al. "Transcriptomic and Widely Targeted Metabolomic Approach Identified Diverse Group of Bioactive Compounds, Antiradical Activities, and Their Associated Genes in Six Sugarcane Varieties." Antioxidants 11, no. 7 (2022): 1319. http://dx.doi.org/10.3390/antiox11071319.

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Sugarcane is cultivated mainly for its high sucrose content but it can also produce many metabolites with promising antioxidant potential. However, very few studies have been reported on the biosynthesis of metabolites in sugarcane to date. In this study, we have identified a wide range of amino acids and organic acids in the rind of six sugarcane varieties by the LC-MS/MS method. A total number of 72 amino acids and 55 organic acid compounds were characterized; among these, 100 were reported for the first time. Moreover, 13 amino acids and seven organic acids were abundantly distributed in al
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Kataoka, Eiko, Chiyoko Tokue, Tomoko Yamashita, and Wahachiro Tanimura. "Amino acids, organic acids, fatty acids, trimethylamine and methional in improved fish sauce." Japanese Journal of Nutrition and Dietetics 45, no. 2 (1987): 67–76. http://dx.doi.org/10.5264/eiyogakuzashi.45.67.

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39

Shi, Yige, Dandan Pu, Xuewei Zhou, and Yuyu Zhang. "Recent Progress in the Study of Taste Characteristics and the Nutrition and Health Properties of Organic Acids in Foods." Foods 11, no. 21 (2022): 3408. http://dx.doi.org/10.3390/foods11213408.

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Organic acids could improve the food flavor, maintain the nutritional value, and extend the shelf life of food. This review summarizes the detection methods and concentrations of organic acids in different foods, as well as their taste characteristics and nutritional properties. The composition of organic acids varies in different food. Fruits and vegetables often contain citric acid, creatine is a unique organic acid found in meat, fermented foods have a high content of acetic acid, and seasonings have a wide range of organic acids. Determination of the organic acid contents among different f
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Chen, Hongbo, Fei Yu, Jiaxin Kang, Qiao Li, Hasitha Kalhari Warusawitharana, and Bo Li. "Quality Chemistry, Physiological Functions, and Health Benefits of Organic Acids from Tea (Camellia sinensis)." Molecules 28, no. 5 (2023): 2339. http://dx.doi.org/10.3390/molecules28052339.

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Organic acids account for around 3% of the dry matter in tea leaves, and their composition and contents vary in different types of tea. They participate in the metabolism of tea plants, regulate nutrient absorption and growth, and contribute to the aroma and taste quality of tea. Compared with other secondary metabolites in tea, the researches on organic acids are still limited. This article reviewed the research progresses of organic acids in tea, including analysis methods, the root secretion and physiological function, the composition of organic acids in tea leaves and related influencing f
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Yang, Zhi-Xiao, Shi-Zhou Yu, Ying-Chao Lin, et al. "Activation of potassium released from soil by root-secreted organic acids in different varieties of tobacco (Nicotiana tabacum)." Functional Plant Biology 47, no. 4 (2020): 318. http://dx.doi.org/10.1071/fp19137.

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Organic acids secreted from the roots of plants play important roles in nutrient acquisition and metal detoxification; however, the precise underlying mechanisms of these processes remain poorly understood. In the present study we examined the content of organic acids exuded from roots and the effects of these organic acids on the activation of slowly available potassium (K) at different K levels, including normal K supply and K-deficient conditions. In addition, the study system also comprised a high-K tobacco variety (ND202) and two common ones (K326 and NC89). Our results showed that high-K
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Pires, Adriana Marlene Moreno, Giuliano Marchi, Maria Emília Mattiazzo, and Luiz Roberto Guimarães Guilherme. "Organic acids in the rhizosphere and phytoavailability of sewage sludge-borne trace elements." Pesquisa Agropecuária Brasileira 42, no. 7 (2007): 917–24. http://dx.doi.org/10.1590/s0100-204x2007000700002.

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The aim of this work was to quantify low molecular weight organic acids in the rhizosphere of plants grown in a sewage sludge-treated media, and to assess the correlation between the release of the acids and the concentrations of trace-elements in the shoots of the plants. The species utilized in the experiment were cultivated in sand and sewage sludge-treated sand. The acetic, citric, lactic, and oxalic acids, were identified and quantified by high performance liquid chromatography in samples collected from a hydroponics system. Averages obtained from each treatment, concentration of trace el
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43

Tuason, M. M. S., and J. M. Arocena. "Root organic acid exudates and properties of rhizosphere soils of white spruce (Picea glauca) and subalpine fir (Abies lasiocarpa)." Canadian Journal of Soil Science 89, no. 3 (2009): 287–300. http://dx.doi.org/10.4141/cjss08021.

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Rhizosphere processes, such as the production and release of organic acids, contribute to differences in properties between rhizosphere (R) and nonrhizosphere (NR) soils. We compared the organic acid composition/concentrations in the R and NR soil extracts of Picea glauca and Abies lasiocarpa, and in the root exudates of the same tree species. We also evaluated the chemical properties and mineral composition of the soil samples. Higher concentrations of organic acids were observed in R than in NR soils with aliphatic acids predominating in both soil extracts and root exudates. Acetic, formic,
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44

Acree, William E., and W. Earle Waghorne. "IUPAC–NIST Solubility Data Series. 105. Solubility of Solid Alkanoic Acids, Alkenoic Acids, Alkanedioic Acids, and Alkenedioic Acids Dissolved in Neat Organic Solvents, Organic Solvent Mixtures, and Aqueous–Organic Solvent Mixtures. I. Alkanoic Acids." Journal of Physical and Chemical Reference Data 50, no. 4 (2021): 043103. http://dx.doi.org/10.1063/5.0062574.

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45

Priecina, Liga, and Daina Karklina. "COMPOSITION OF MAJOR ORGANIC ACIDS IN VEGETABLES AND SPICES." CBU International Conference Proceedings 3 (September 19, 2015): 447–54. http://dx.doi.org/10.12955/cbup.v3.637.

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Organic acids are one of the major phytochemicals in vegetables and responsible for food taste and odor. Different organic acids are analyzed in fruits and cereals, but least in vegetables and spices. Organic acids has been analyzed because of their high importance in the formation of other phytochemical and increased antioxidant activity. The aim of the current research was to determine the oxalic, tartaric, quinic, malic, malonic, ascorbic, citric, fumaric, succinic, salicylic and benzoic acid content in fresh and pre-treated (with steam) vegetables and spices using high performance liquid c
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46

Xu, Ling Li, Zhi Bao Huo, Feng Wen Wang, and Fang Ming Jin. "Hydrothermal Conversion of Cellulose into Organic Acids by Metal Oxides." Advanced Materials Research 860-863 (December 2013): 497–500. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.497.

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In this paper, hydrothermal conversion of cellulose into organic acids in the presence of metal oxides was investigated. The results showed metal oxides could enhance the conversion of cellulose into organic acids. The total yields of organic acids of 41.6% with Al2O32.0 mmol from cellulose was achieved at 300 oC for 1 min, NaOH 2.5 M and water 2 mL. The plausible mechanism for the hydrothermal conversion of cellulose into organic acids was also discussed.
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47

Botta, R., C. Gianotti, D. Richardson, A. Suwanagul, and Carlos L. Sanz. "HAZELNUT VARIETY ORGANIC ACIDS, SUGARS, AND TOTAL LIPID FATTY ACIDS." Acta Horticulturae, no. 351 (January 1994): 693–99. http://dx.doi.org/10.17660/actahortic.1994.351.77.

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48

Koshkin, S. A., A. R. Garifzyanov, N. V. Davletshina, M. S. Valeeva, and R. A. Cherkasov. "Membrane transport of organic acids by N-methylphosphorylated amino acids." Russian Journal of General Chemistry 84, no. 11 (2014): 2289–90. http://dx.doi.org/10.1134/s1070363214110462.

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49

Limo, Sitti R. "Analisis Beberapa Asam Organik pada Nira Aren Menggunakan HPLC Fasa Terbalik Kolom YMC Triart C18." Jurnal MIPA 4, no. 1 (2015): 51. http://dx.doi.org/10.35799/jm.4.1.2015.6905.

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Metode HPLC fasa terbalik dengan kolom YMC Triart C18 dapat digunakan untuk pemisahan dan perhitungan konsentrasi asam organik pada nira aren. Metode analisis HPLC ini dilakukan pada suhu kolom 400C dan dideteksi pada panjang gelombang 210 nm dengan kalium dihidrogen fosfat (pH 2.8) sebagai fase gerak. Sampel yang diuji pada penelitian ini adalah nira aren yang diperoleh dari daerah kota Tomohon. Penentuan asam-asam organik dalam nira aren dilakukan menggunakan asam-asam standard asam malat, asam askorbat, asam laktat, asam asetat, asam sitrat, asam piroglutamat, dan asam fumarat. Ketujuh asam
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50

Malinovska, I. M. "DECOMPOSITION OF PHOSPHORUS-CONTAINING COMPOUNDS IN AQUEOUS AND POLYSACCHARIDE SOLUTIONS OF ORGANIC ACIDS." Biotechnologia Acta 16, no. 3 (2023): 59–64. http://dx.doi.org/10.15407/biotech16.03.059.

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The purpose was to study the patterns of dissolution (solubilization) of phosphorus-containing minerals in aqueous and polysaccharide solutions of organic acids in order to model the mechanism of mineral destruction by soil bacteria synthesizing organic acids and exopolysaccharides. Methods. Model, laboratory-analytical, microbiological, statistical. Results. The destructive effect of organic acids on minerals is manifested both in aqueous and polysaccharide solutions. The introduction of bacterial polysaccharide into an aqueous solution of acids increases the decomposition of phosphorus-conta
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