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Journal articles on the topic 'Butanoic acid'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Cheng, Jingui, Benpeng Li, Peipei Ma, Mengying Liu, and Zhizhong Wang. "Synthesis and Properties of Macrocyclic Butanoic Acid Conjugates as a Promising Delivery Formulation for the Nutrition of Colon." Scientific World Journal 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/914234.

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Butanoic acid plays a significant role in the maintenance of mucosal health and is the preferred energy substrate for the cells in the colon. Here, butanoic acid was selectively conjugated to the secondary hydroxyl group ofβ-cyclodextrin through ester bond using sodium hydride as the deprotonation reagent. The preliminary release behaviors of butanoic acid in rat gastrointestinal tract contents were investigated at 37°C within 12 h. In the contents of stomach, the conjugates did seldom release butanoic acid, released butanoic acid only 5.8% in the contents of small intestine, and released buta

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2

Muhammad, Niaz, M. Nawaz Tahir, Zia-ur-Rehman, and Saqib Ali. "2-(4-Ethoxybenzylidene)butanoic acid." Acta Crystallographica Section E Structure Reports Online 64, no. 8 (2008): o1458. http://dx.doi.org/10.1107/s160053680802103x.

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3

Gerkin, R. E. "4-(3-Phenanthryl)butanoic Acid." Acta Crystallographica Section C Crystal Structure Communications 53, no. 9 (1997): 1275–78. http://dx.doi.org/10.1107/s0108270197006367.

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4

Guillard, C. "Photocatalytic degradation of butanoic acid." Journal of Photochemistry and Photobiology A: Chemistry 135, no. 1 (2000): 65–75. http://dx.doi.org/10.1016/s1010-6030(00)00275-6.

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5

Dobson, A. J., and R. E. Gerkin. "4-(2-Naphthyl)butanoic Acid." Acta Crystallographica Section C Crystal Structure Communications 52, no. 12 (1996): 3083–86. http://dx.doi.org/10.1107/s0108270196009547.

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6

Chen, Jiahui, Dandan Pu, Yige Shi, et al. "Characterization of the Key Aroma Compounds in Different Yeast Proteins by GC-MS/O, Sensory Evaluation, and E-Nose." Foods 12, no. 16 (2023): 3136. http://dx.doi.org/10.3390/foods12163136.

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The unique odors of yeast proteins (YPs) are decisive for their application in meat substitutes. Sensory evaluation, electronic nose, and gas chromatography–mass spectrometry/olfactory (GC-MS/O) were combined to characterize the aroma profiles and aroma-active compounds of YPs. The sensory evaluation results indicate that the sweaty aroma had the strongest intensity in YP #10, followed by rice bran, sour, and plastic. The electronic nose could effectively distinguish the aroma differences among five YPs. A total of 27 aroma-active compounds in the five YPs were identified by GC-MS/O. The conce

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7

Nissen, Lorenzo, Manuela Rollini, Claudia Picozzi, Alida Musatti, Roberto Foschino, and Andrea Gianotti. "Yeast-Free Doughs by Zymomonas mobilis: Evaluation of Technological and Fermentation Performances by Using a Metabolomic Approach." Microorganisms 8, no. 6 (2020): 792. http://dx.doi.org/10.3390/microorganisms8060792.

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This research focuses on the leavening performances and development of volatile compounds of three strains of Zymomonas mobilis in the production of yeast-free doughs. Z. mobilis DSM 3580, 424, and 473 were used in doughs supplemented with glucose and with or without NaCl. Z. mobilis produced about 10 mg ethanol/g dough, with maximum dough volumes (640–680 mL) being reached after 2 h leavening. NaCl addition postponed this parameter up to 6 h. Among organic acids, hexanoic acid resulted the highest produced compound; DSM 424 and 473 formed more propanoic, butanoic and pentanoic acid, being bot

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8

Hanifa, Bibi, Muhammad Sirajuddin, Ahmed Bari, See Mun Lee, Kong Mun Lo, and Edward R. T. Tiekink. "4-[(4-Chlorophenyl)carbamoyl]butanoic Acid." Molbank 2021, no. 2 (2021): M1209. http://dx.doi.org/10.3390/m1209.

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The X-ray crystal structure determination of the glutaric acid-amide derivative, 4-ClC6H4N(H)C(=O)(CH2)3C(=O)OH (1), is described. The backbone of the molecule adopts an extended, all-trans configuration but the terminal carboxylic acid and phenyl resides are twisted out of the plane through the bridging atoms, as seen in the torsion angles of O(carboxylic acid)–C(m)–C(m)–C(m) [13.9(5)°] and C(m)–N–C(p)–C(p) [47.1(4)°]; m = methylene and p = phenyl. The most striking feature of the molecular packing is the formation of supramolecular tapes mediated by carboxylic acid-O–H⋯O(carbonyl) and amide-

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9

Hanifa, Bibi, Muhammad Sirajuddin, Zafran Ullah, et al. "4-[(2,4-Dichlorophenyl)carbamoyl]butanoic Acid." Molbank 2021, no. 2 (2021): M1227. http://dx.doi.org/10.3390/m1227.

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The synthesis and spectroscopic characterization of the glutaric acid-amide derivative, 2,4-Cl2C6H3N(H)C(=O)(CH2)3C(=O)OH (1), are described. The X-ray crystal structure determination of (1) shows the backbone of the molecule to be kinked about the methylene-C–N(amide) bond as seen in the C(p)–N–C(m)–C(m) torsion angle of −157.0(2)°; m = methylene and p = phenyl. An additional twist in the molecule is noted between the amide and phenyl groups as reflected in the C(m)–N–C(p)–C(p) torsion angle of 138.2(2)°. The most prominent feature of the molecular packing is the formation of supramolecular t

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10

Rani, Asha, Ajay Prakash Saha, and Satya Murti Prasad. "3-Oxo-2-(phenylhydrazono)butanoic acid." Acta Crystallographica Section E Structure Reports Online 58, no. 9 (2002): o1001—o1002. http://dx.doi.org/10.1107/s1600536802014757.

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11

Stanciu, Ioana. "FTIR Spectroscopy Analysis of Butanoic Acid." Journal of Applied Chemical Science International 15, no. 2 (2024): 26–29. http://dx.doi.org/10.56557/jacsi/2024/v15i28863.

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In this article, we determined the chemical composition of butanoic acid using FTIR spectroscopy. It is a short chain saturated fatty acid found in the form of esters in animal fats and plant oils. Acid butanoic is used in the manufacture of esters for artificial flavourings, as a food additive, in the manufacture of varnishes, and in decalcifying hides used in the manufacture of perfume, flavourings, pharmaceuticals, and disinfectants, used as an important flavouring agent in a number of food, including beer and may be present in cosmetic and detergent preparation. From the spectroscopy data,

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12

Zheng, Ze-Bao, Ji-Kun Li, Ren-Tao Wu, and Yi-Feng Sun. "4-(Quinolin-8-yloxy)butanoic acid." Acta Crystallographica Section E Structure Reports Online 62, no. 10 (2006): o4611—o4612. http://dx.doi.org/10.1107/s1600536806037895.

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13

Kimino, Taira, and Isao Fujii. "3-{[(Benzyloxy)carbonyl]amino}butanoic acid." Acta Crystallographica Section E Structure Reports Online 67, no. 10 (2011): o2560. http://dx.doi.org/10.1107/s1600536811035276.

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14

Niaz, Muhammad, M. Nawaz Tahir, Zia-ur-Rehman, Saqib Ali, and Islam Ullah Khan. "(E)-2-(2-Fluorobenzylidene)butanoic acid." Acta Crystallographica Section E Structure Reports Online 64, no. 4 (2008): o733. http://dx.doi.org/10.1107/s1600536808007149.

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15

Visser, Frans R. "Synthesis of [4,4,4-2H3]butanoic acid." Journal of Labelled Compounds and Radiopharmaceuticals 24, no. 8 (1987): 1005–8. http://dx.doi.org/10.1002/jlcr.2580240817.

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16

Mane, Ramchandra Bhimrao, Abhijit Jaysingrao Kadam, and Rajashree Sandeep Salunkhe. "Synthesis of 1,1,5,6-Tetramethyl- and 7-Isopropyl-1,1-dimethyl-1,2,3,4-tetrahydronaphthalene." Collection of Czechoslovak Chemical Communications 64, no. 3 (1999): 527–32. http://dx.doi.org/10.1135/cccc19990527.

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4-(2,3-Dimethylphenyl)butanoic acid (4) was treated with excess of methyllithium to yield 5-(2,3-dimethylphenyl)-2-methylpentan-2-ol (6) which was cyclodehydrated using Dowex 50W-X8 resin, trifluoroacetic acid or polyphosphoric acid (PPA) to furnish 1,1,5,6-tetramethyl-1,2,3,4-tetrahydronaphthalene (1). The acid 4 was cyclized with PPA to furnish 5,6-dimethyl-3,4-dihydronaphthalen-1(2H)-one (5) which was converted into 1 by reaction with dimethylzinc and titanium tetrachloride. 4-(4-Isopropylphenyl)butanoic acid (7) on esterification followed by Grignard reaction with methylmagnesium iodide fu

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17

Wang, Enzhao, Xiongduo Liu, Zhiyuan Si, et al. "Volatile Organic Compounds from Rice Rhizosphere Bacteria Inhibit Growth of the Pathogen Rhizoctonia solani." Agriculture 11, no. 4 (2021): 368. http://dx.doi.org/10.3390/agriculture11040368.

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Rice sheath blight, a fungal disease caused by Rhizoctonia solani, seriously threatens rice production. Some of the volatile organic compounds (VOCs) produced by microbes are inhibitory to the growth of the plant pathogen, and hence may have the potential as environmentally friendly antifungal substances. However, information on the inhibitory effect of VOCs released by rice rhizosphere bacteria on R. solani is scarce. In this study, bacteria from the rice rhizosphere capable of inhibiting the growth of R. solani via releasing VOCs were screened using a double Petri dish assay. Headspace solid

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18

Rahman, MM, F. Ozoe та Y. Ozoe. "Competitive antagonism of housefly γ-aminobutyric acid receptors by iminopyridazine butanoic acids". Bangladesh Journal of Scientific and Industrial Research 56, № 1 (2021): 9–16. http://dx.doi.org/10.3329/bjsir.v56i1.52690.

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The competitive antagonistic activities of a series of gabazine (3) based 3-substituted iminopyridazine butanoic acid analogs [4-(3-aryl/heteroaryl-1,6-dihydro- 6-iminopyridazin-1-yl) butanoic acid hydrochlorides] 4a-4k (Figure 1) were examined at housefly (Musca domestica) GABA receptors expressed in Xenopus oocytes using two-electrode voltage-clamp (TEVC) technique. The 4-biphenylyl analog 4e exhibited the highest inhibition (approximately 68%) of GABA-induced currents at 100 μM with an IC50 value of 40.81 ± 3.89 μM. The 2-naphthyl analog 4h was the second most active compound with approxima

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19

Langer, Vratislav, Júlia Mičová, Bohumil Steiner, and Miroslav Koóš. "2-(1H-Benzimidazol-2-ylsulfanyl)butanoic acid." Acta Crystallographica Section E Structure Reports Online 62, no. 6 (2006): o2138—o2140. http://dx.doi.org/10.1107/s1600536806015121.

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20

Sinha, Suman, Hasnah Osman, Habibah A. Wahab, Madhukar Hemamalini, and Hoong-Kun Fun. "3-Hydroxy-2-(4-methoxybenzenesulfonamido)butanoic acid." Acta Crystallographica Section E Structure Reports Online 67, no. 12 (2011): o3275. http://dx.doi.org/10.1107/s1600536811046502.

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21

Wang, Li, Zheng Liu, and Yong Liao Wang. "4-(Methylsulfanyl)-2-(p-toluenesulfonamido)butanoic acid." Acta Crystallographica Section E Structure Reports Online 64, no. 4 (2008): o706. http://dx.doi.org/10.1107/s1600536808005035.

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22

Zhang, Lingna, Edgar O. Aviles-Rosa, Zhaowei Bian, Kaz Surowiec, and John J. McGlone. "Semiochemicals from Domestic Cat Urine and Feces Reduce Use of Scratching Surfaces." Animals 14, no. 3 (2024): 520. http://dx.doi.org/10.3390/ani14030520.

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Scratching is a natural behavior in cats but can cause damage to household furnishings. In this work, we sought to identify potential semiochemicals in the urine and feces of domestic cats that may modify cat scratching behavior. Sex differences among adult, intact cats were examined for volatile molecules in their urine (n = 7 females, 7 males) and feces (n = 8 females, 10 males) using gas chromatography-mass spectrometry (GC-MS). Males had seven times more 3-Mercapto-3-Methyl Butanol (MMB, p < 0.001) in the urine and 98% more butanoic acid (p = 0.02) in the feces than females. One mL of m

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23

Huang, Jian, Chang Li Liu, Li Wei, and Jie Zhang. "Productions Diversity of Agriculture Solidwastes Biodegraded." Advanced Materials Research 113-116 (June 2010): 51–54. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.51.

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In order to investigate the rice straw lost weight, degradation products and changes of microbial communities in agriculture solid waste degradation course. The normal temperature microbial community could decompose 40% of rice straw gross weight within six days. Propionic acid, ethanol, isopropyl alcohol, 4-Amino-1-butanol, butanoic acid, diethoxydimethyl-silane, lactic acid, ethanol-2,2'-oxybis-, diethyl phthalate and glycerin ten kinds compounds detected by GC-MS in the fermented broth. Degradation products changed lots in different fermented period. For analyzing the diversity of the micro

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24

David, Y. C., J. B. Ylagan, H. A. Gonzales, et al. "Volatile organic compound profiling of Capsicum annuum var. longum grown under different concentrations of nitrogen." Hellenic Plant Protection Journal 14, no. 2 (2021): 77–88. http://dx.doi.org/10.2478/hppj-2021-0008.

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Summary Emission of volatile organic compounds (VOCs) in plants is triggered by several biotic and abiotic factors, such as nutrient deficiency, environmental stress, and pathogenic attacks. For instance, plants suffering from limited or excessive nitrogen (N) supply may experience internal stress which can ultimately lower their stability and immunity making them susceptible to infection and infestation. In this study, VOCs from Capsicum annuum var. longum (Solanaceae) exposed to nitrogen (1.8 g/L, 4.5 g/L, and 9 g/L urea) were extracted using a 100 μm Solid Phase Microextraction (SPME) fiber

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25

Nayak, Kalinga H., Robert K. Jijin, and Beneesh P. Babu. "Synthesis of 5-(pyrazol-4-yl) pentanoic acids and 4-(pyrazol-4-yl) butanoic acids via a cascade annulation/ring-opening reaction between hydrazone and dienone." RSC Advances 15, no. 30 (2025): 24137–41. https://doi.org/10.1039/d5ra03561a.

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26

Jusaitis, Manfred. "Rooting of Intact Mung Bean Hypocotyls Stimulated by Auxin, ACC, and Low Temperature." HortScience 21, no. 4 (1986): 1024–25. http://dx.doi.org/10.21273/hortsci.21.4.1024.

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Abstract Mung bean [Vigna radiata (L.) R. Wilcz.] hypocotyls, growing on their stock plants, were induced to produce adventitious roots by treatment with indolebutyric acid (IBA). Rooting was hastened further and increased by concurrent treatment with ACC, the biosynthetic precursor to ethylene. Further increases in rate of root emergence and root numbers occurred when these treatments were applied on rewarming of mung bean plants pretreated with low temperature (15°C). Rooting was inhibited by AVG, an inhibitor of ACC biosynthesis, and this inhibition was reversed by concurrent treatment with

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27

Montero-Fernández, Ismael, Jhunior Abrahan Marcía-Fuentes, Gema Cascos, Selvin Antonio Saravia-Maldonado, Jesús Lozano, and Daniel Martín-Vertedor. "Masking Effect of Cassia grandis Sensory Defect with Flavoured Stuffed Olives." Foods 11, no. 15 (2022): 2305. http://dx.doi.org/10.3390/foods11152305.

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Carao (Cassia grandis) is an America native plant characterized by its high iron content. This particular property allows its use as a natural additive to fix the black colour in California-style black olives, while masking its unpleasant aroma by stuffing olives with flavoured hydrocolloid. The tasting panel evaluated olives filled with unflavoured hydrocolloid with a fruity aroma, classified them as an extra category. Olives with the Carao addition presented a positive aroma, but also showed negative sensory attributes such as cheese, fermented and metallic flavours/aromas. The aroma of lyop

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28

Henderson, Ben, Joris Meurs, Carlijn R. Lamers, et al. "Non-Invasive Monitoring of Inflammation in Inflammatory Bowel Disease Patients during Prolonged Exercise via Exhaled Breath Volatile Organic Compounds." Metabolites 12, no. 3 (2022): 224. http://dx.doi.org/10.3390/metabo12030224.

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The aim of this study was to investigate volatile organic compounds (VOCs) in exhaled breath as possible non-invasive markers to monitor the inflammatory response in inflammatory bowel disease (IBD) patients as a result of repeated and prolonged moderate-intensity exercise. We included 18 IBD patients and 19 non-IBD individuals who each completed a 30, 40, or 50 km walking exercise over three consecutive days. Breath and blood samples were taken before the start of the exercise event and every day post-exercise to assess changes in the VOC profiles and cytokine concentrations. Proton transfer

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29

Li, Xun, Wen-Fang Xu, Ji-Feng Wu, Jun-Li Wang, and Yu-Mei Yuan. "(4S)-4-(Methoxycarbonylmethylaminocarbonyl)-4-(3,4,5-trimethoxybenzamido)butanoic acid." Acta Crystallographica Section E Structure Reports Online 61, no. 2 (2005): o349—o351. http://dx.doi.org/10.1107/s1600536805001339.

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30

Betz, Richard, Thomas Gerber, and Henk Schalekamp. "4,4,4-Trifluoro-3-hydroxy-3-(trifluoromethyl)butanoic acid." Acta Crystallographica Section E Structure Reports Online 67, no. 3 (2011): o616. http://dx.doi.org/10.1107/s1600536811004764.

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31

Picciotti, Ugo, Miguel Valverde-Urrea, Francesca Garganese, et al. "Brindley’s Glands Volatilome of the Predator Zelus renardii Interacting with Xylella Vectors." Insects 14, no. 6 (2023): 520. http://dx.doi.org/10.3390/insects14060520.

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Alien species must adapt to new biogeographical regions to acclimatise and survive. We consider a species to have become invasive if it establishes negative interactions after acclimatisation. Xylella fastidiosa Wells, Raju et al., 1986 (XF) represents Italy’s and Europe’s most recent biological invasion. In Apulia (southern Italy), the XF-encountered Philaenus spumarius L. 1758 (Spittlebugs, Hemiptera: Auchenorrhyncha) can acquire and transmit the bacterium to Olea europaea L., 1753. The management of XF invasion involves various transmission control means, including inundative biological con

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32

Akinjogunla, Olajide J., and A. Y. Itah. "GC-MS PROFILING AND In vitro ANTIBACTERIAL EFFICACY OF AQUEOUS LEAF EXTRACTS OF Ocimum gratissimum Linn. AND Vernonia amygdalina Del." FUDMA JOURNAL OF SCIENCES 8, no. 6 (2024): 346–54. https://doi.org/10.33003/fjs-2024-0806-2995.

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The increasing spread, persistence, and prevalence of multidrug-resistant bacterial strains has become a significant global public health challenge, necessitating the need for novel, potent, and alternative antimicrobial agents, particularly from medicinal plants. The study determined the bioactive phytochemical constituents and antibacterial activities of the aqueous leaf extracts of Vernonia amygdalina (ALEVA) and Ocimum gratissimum (ALEOG). In ALEVA using the agar-well diffusion method. The ALEVA contained 35 identified compounds, with cis-thujopsene (20.99%), acetic acid (20.77%), and buta

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33

Safronov, S. P., E. L. Krasnykh, and S. V. Levanova. "ASPECTS OF ESTERIFICATION PROCESS OF GLYCEROL-CONTAINING WASTE FROM BIODIESEL PRODUCTION FOR OBTAINING OF PLASTICIZING COMPOSITIONS." Fine Chemical Technologies 12, no. 6 (2017): 77–82. http://dx.doi.org/10.32362/2410-6593-2017-12-6-77-82.

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Kinetics of catalytic esterification of glycerol with butanoic acid on model systems was studied. Reaction orders for the reactants (butanoic acid and glycerol) were determined. They are close to 1.It was shown that the reaction order with respect to the catalyst - orthophosphoric acid - in regions where its concentration is above 0.1 mol/l is equal to zero. The estimated value of activation energy is 51.9± 8.0 kJ/mol. The results of the experiment can be used to create an industrial technological process for the synthesis of glycerol tributyrate. This compound can be used as an alternative no

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34

Yasuda, Tomoko, Miyoko Waki, Yasuyuki Fukumoto, Hiroaki Saito, and Hiroki Yokojima. "Odorous Compound Removal Performance and Water Properties of a Biotrickling Filter Installed in a Piggery." Applied Engineering in Agriculture 37, no. 4 (2021): 563–72. http://dx.doi.org/10.13031/aea.14443.

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Highlights We evaluated the performance of a two-stage biotrickling filter in a pig facility. A short empty bed residence time lowered the secondary filter removal efficiency for many odorous compounds. The removal efficiency of some compounds increased when the pH in the secondary water tank decreased. Low-odor-threshold compounds such as MT, n-BA, n-PA, and p-cresol were indicated as targets for optimization. Abstract . Odor is a major problem in pig production, and it is important to minimize odor emissions. To determine the factors influencing variations in odor removal efficiency, we anal

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Gould, Oliver, Ben de Lacy Costello, Amy Smart, et al. "Gas Chromatography Mass Spectrometry (GC-MS) Quantification of Metabolites in Stool Using 13C Labelled Compounds." Metabolites 8, no. 4 (2018): 75. http://dx.doi.org/10.3390/metabo8040075.

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It has become increasingly important to qualitatively and quantitatively assess the volatile metabolites in a range of bodily fluids for use in monitoring health. There has been relatively little work on the quantitative analysis of compounds, particularly with respect to the effects of ethnicity or geographic location. A novel method for the quantification of compounds in stool using 13C labelled compounds as internal standards is presented. Using thermal desorption gas chromatography mass spectrometry, stool samples from 38 healthy volunteers were analysed. The 13C labelled compounds, aceton

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Sarma, G. V. S., G. V. Santosh Kumar, M. Vijay, and K. V. Ramesh. "Kinetic studies of esterification of butanoic acid with cyclohexanol." Materials Today: Proceedings 46 (2021): 737–39. http://dx.doi.org/10.1016/j.matpr.2020.12.373.

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37

Kennedy, G. M., M. Y. Min, J. F. Fitzgerald, et al. "Inactivation of the bacterial pathogensStaphylococcus pseudintermediusandAcinetobacter baumanniiby butanoic acid." Journal of Applied Microbiology 126, no. 3 (2019): 752–63. http://dx.doi.org/10.1111/jam.14180.

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38

Ahluwalia, R., Ritu Gupta, J. L. Vashisht, and R. K. Wanchoo. "Physical Properties of Binary Liquid Systems: Ethanoic Acid/Propanoic Acid/Butanoic Acid with Cresols." Journal of Solution Chemistry 42, no. 5 (2013): 945–66. http://dx.doi.org/10.1007/s10953-013-0001-2.

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Schlegel, Katharina, Eva Ortner, Andrea Buettner, and Ute Schweiggert-Weisz. "Contribution of S. xylosus and L. sakei ssp. carnosus Fermentation to the Aroma of Lupin Protein Isolates." Foods 10, no. 6 (2021): 1257. http://dx.doi.org/10.3390/foods10061257.

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Aroma-active compounds of lupin protein isolate and lupin protein isolate fermented with Staphylococcus xylosus and Lactobacillus sakei ssp. carnosus were investigated. The changes in aroma-active compounds were determined by application of aroma extract dilution analysis in combination with gas chromatography-mass spectrometry/olfactometry for identification, and by stable isotope dilution assays for quantification. A total of 30 aroma-active compounds for non-fermented and fermented samples were identified. The aroma profile of LPI fermented with Lactobacillus sakei ssp. carnosus was charact

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40

Panseri, Sara, Alessandra Manzo, Luca Maria Chiesa, and Annamaria Giorgi. "Melissopalynological and Volatile Compounds Analysis of Buckwheat Honey from Different Geographical Origins and Their Role in Botanical Determination." Journal of Chemistry 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/904202.

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Volatile organic compounds (VOCs) have been proposed as one of the main factors for differentiating honeys from different botanical/floral origins. In this work, we investigated the volatile profile of honeys, commercially labeled as buckwheat honeys, from the Alps and its relationship with melissopalynological investigation. The results showed that buckwheat honey samples that contained, to different extents, buckwheat pollen grains on melissopalynological analyses showed similar VOCs profiles, distinguishing them from the other honey floral types analyzed. Among VOCs identified, 3-methylbuta

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A., Elavarasan,, Dharmaraja J., Raj V., Harikrishnan B, and Vadivel S. "A Kinetic Study of 2-Amino-4-(Methyl-Thio) Butanoic Acid By Quinaldinium Fluorochromate In Selected Hydrophilic Solvent Medium." International Journal of pharma and Bio Sciences 11, no. 6 (2021): 30–35. http://dx.doi.org/10.22376/ijpbs/lpr.2021.11.6.l30-35.

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A Major role in oxidation kinetics is to determine the reaction mechanism that comprise chemical reaction. In the present paper we derived rate law for reaction mechanism and to recognized the order of reaction, give rate equation, calculate the rate constant. Identify the product of this oxidation reaction.The chemical oxidation of 2-Amino-4-methyl thio-butanoic acid by Quinaldinium Fluorochromate was studied in 50-50 (v/v) selected hydrophilic solvent medium at 308 Kelvin. The reaction is acid catalysed and exhibits first order dependence with respect to oxidant, substrate, and fractional or

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Shulgau, Zarina, Irina V. Palamarchuk, Shynggys Sergazy, Assel Urazbayeva, Yerlan Ramankulov та Ivan V. Kulakov. "Synthesis, Computational Study, and In Vitro α-Glucosidase Inhibitory Action of 1,3,4-Thiadiazole Derivatives of 3-Aminopyridin-2(1H)-ones". Pharmaceuticals 17, № 3 (2024): 377. http://dx.doi.org/10.3390/ph17030377.

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This article reports on the synthesis of nine promising new 1,3,4-thiadiazole derivatives based on 3-aminopyridones, containing various acidic linkers. The synthesis was carried out by cyclizing the corresponding thiohydrazides 4a–c and anhydrides of glutaric, maleic, and phthalic acids upon heating in acetic acid solution. The conducted bio-screening of the synthesized new 1,3,4-thiadiazole derivatives containing different acidic linkers (butanoic, acrylic, and benzoic acids) showed that they have significant inhibitory activity against α-glucosidase (up to 95.0%), which is 1.9 times higher t

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Syrokou, Maria K., Spiros Paramithiotis, Charalabos D. Kanakis, et al. "Effect of Dough-Related Parameters on the Antimold Activity of Wickerhamomyces anomalus Strains and Mold-Free Shelf Life of Bread." Applied Sciences 12, no. 9 (2022): 4506. http://dx.doi.org/10.3390/app12094506.

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The aim of the present study was to assess the antimold capacity of three Wickerhamomyces anomalus strains, both in vitro and in situ, and to identify the responsible volatile organic compounds. For that purpose, two substrates were applied; the former included brain heart infusion broth, adjusted to six initial pH values (3.5, 4.0, 4.5, 5.0, 5.5, 6.0) and supplemented with six different NaCl concentrations (0.0%, 0.5%, 1.0%, 1.5%, 2.0%, 2.5%), while the latter was a liquid dough, fortified with the six aforementioned NaCl concentrations. After a 24 h incubation at 30 °C, the maximum antimold

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Ryu, Min-Ji, Minjeong Kim, Moongi Ji, et al. "Discrimination of Lycium chinense and L. barbarum Based on Metabolite Analysis and Hepatoprotective Activity." Molecules 25, no. 24 (2020): 5835. http://dx.doi.org/10.3390/molecules25245835.

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Lycii Fructus is a traditional medicine used to prevent liver and kidney diseases, which commonly derives from Lycium chinense and Lycium barbarum. Here, the extracts and ethyl acetate-soluble fractions of L. chinense fruits exhibited better hepatoprotective effects than those of L. barbarum, which was likely due to differences in their composition. Therefore, GC-MS and HPLC analyses were conducted to characterize the metabolite differences between L. chinense and L. barbarum. Based on amino acid (AA) and phenolic acid (PA) profiling, 24 AAs and 9 PAs were identified in the two species. Moreov

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Celano, Giuseppe, Francesco Maria Calabrese, Giuseppe Riezzo, et al. "Effects of a Very-Low-Calorie Ketogenic Diet on the Fecal and Urinary Volatilome in an Obese Patient Cohort: A Preliminary Investigation." Nutrients 15, no. 17 (2023): 3752. http://dx.doi.org/10.3390/nu15173752.

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Several recent studies deepened the strong connection between gut microbiota and obesity. The effectiveness of the very-low-calorie ketogenic diet (VLCKD) has been measured in terms of positive impact on the host homeostasis, but little is known of the modification exerted on the intestinal metabolome. To inspect this complex relationship, we analyzed both fecal and urinary metabolome in terms of volatile organic compounds (VOCs) by the GC-MS method in 25 obese patients that were under VLCKD for eight weeks. Partial least square discriminant analysis evidenced specific urinary and fecal metabo

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Wickremesinhe, E. R. M., W. J. Blackmon, and B. D. Reynolds. "In Vitro Propagation of Apios americana." HortScience 25, no. 11 (1990): 1439–40. http://dx.doi.org/10.21273/hortsci.25.11.1439.

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Shoot proliferation from axillary buds of Apios americana Medikus (apios, groundnut) was obtained on a modified Murashige and Skoog (MS) medium supplemented with 2.22 μm BAP, 0.5 μm IBA, and 3.0 μm GA3. Existed shoots rooted on MS basal medium. About 60% of the rooted plants were successfully established in soil. Chemical names used: 1 H-indole-3-butanoic acid (IBA). gibberellic acid (GA3), N6-benzylaminopurine (BAP).

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Martín-Venegas, Raquel, M. Teresa Brufau, Yves Mercier, Pierre-André Geraert, and Ruth Ferrer. "Intestinal cell conversion ofdl-2-hydroxy-(4-methylthio)butanoic acidin vitro: dietary up-regulation by this methionine precursor." British Journal of Nutrition 106, no. 3 (2011): 350–56. http://dx.doi.org/10.1017/s0007114511000183.

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dl-2-Hydroxy-(4-methylthio)butanoic acid (HMTBA) is a synthetic source of dietary methionine (Met) widely used in poultry nutrition. HMTBA is transported in the intestinal epithelium by the monocarboxylate transporter 1, after which its biological utilisation relies on its conversion tol-Met. This process involves stereospecific HMTBA oxidation to 2-keto-(4-methylthio)butanoic acid (KMB) and transamination tol-Met. In the present study, we examined HMTBA conversion tol-Met, further incorporation into cellular proteins and the regulation of both processes by HMTBA supplementation in differentia

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Sýkora, M., E. Vítová, and H. H. Jeleń. "Application of vacuum solid-phase microextraction for the analysis of semi-hard cheese volatiles." European Food Research and Technology 246, no. 3 (2020): 573–80. http://dx.doi.org/10.1007/s00217-020-03426-x.

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AbstractSolid-phase microextraction (SPME) is a well-established technique in the analysis of food volatile compounds, usually performed for qualitative analysis. This paper presents an elaboration of conditions for SPME analysis of main volatile compounds in hard cheese and an evaluation of suitability of vacuum to improve the transfer of volatile compounds towards SPME fiber. Compounds representing the main groups of hard cheese volatiles were investigated: 1-pentanol, butanoic acid, 2,3-butanedione and 2-heptanone. Parameters for SPME extraction (temperature, water, sodium carbonate additio

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Liau, Leo C. K., Thomas C. K. Yang, and Dabir S. Viswanath. "Reaction Pathways and Kinetic Analysis of PVB Thermal Degradation Using TG/FT-IR." Applied Spectroscopy 50, no. 8 (1996): 1058–65. http://dx.doi.org/10.1366/0003702963905231.

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Poly(vinyl butyral) (PVB) was thermally degraded in a thermogravimetry (TG) in nitrogen atmosphere. Evolving gases during PVB degradation were continuously analyzed with an FT-IR instrument. The main products identified were butyraldehyde, 2-butenal, butanoic acid, acetic acid, 2,5-dihydrofuran, and butanol. The IR spectra of mixture gases were resolved on the basis of the spectrum of pure species. The intensity of IR absorbance for each species was recorded as a function of temperature, and the temperature-dependent quantitative information for each species was calculated and used to evaluate

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Raza, Abdul Rauf, M. Nawaz Tahir, Aisha Saddiqa, Muhammad Danish, and M. Saeed Iqbal. "(2R)-2-(1,3-Dioxoisoindolin-2-yl)-4-(methylsulfanyl)butanoic acid." Acta Crystallographica Section E Structure Reports Online 65, no. 8 (2009): o2002. http://dx.doi.org/10.1107/s1600536809028992.

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