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Journal articles on the topic 'Metaboliti volatili'

Author: Grafiati

Published: 11 March 2023

Last updated: 31 July 2025

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1

Xu, Yaying, Changqing Zhu, Changjie Xu, et al. "Integration of Metabolite Profiling and Transcriptome Analysis Reveals Genes Related to Volatile Terpenoid Metabolism in Finger Citron (C. medica var. sarcodactylis)." Molecules 24, no. 14 (2019): 2564. http://dx.doi.org/10.3390/molecules24142564.

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Finger citron (Citrus medica var. sarcodactylis) is a popular ornamental tree and an important source of essential oils rich in terpenoids, but the mechanisms behind volatile formation are poorly understood. We investigated gene expression changes combined with volatile profiling of ten samples from three developing organs: flower, leaf, and fruit. A total of 62 volatiles were identified with limonene and γ-terpinene being the most abundant ones. Six volatiles were identified using partial least squares discriminant analysis (PLS-DA) that could be used as markers for distinguishing finger citr

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Fitria, Rizki, Djarot Sasongko Hami Seno, Bambang Pontjo Priosoeryanto, Najmah Najmah, and Waras Nurcholis. "Cytotoxic Activity of Volatile Compounds in Cymbopogon nardus’ Essential Oils." Justek : Jurnal Sains dan Teknologi 5, no. 2 (2022): 90. http://dx.doi.org/10.31764/justek.v5i2.10194.

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Abstract: Plants produce a variety of secondary metabolites, one of which is essential oils that contain a variety of volatile compounds and are useful for humans. Cymbopogon nardus contains volatile compounds that can inhibit the proliferation of cancer cells. This research aims to explore the antiproliferation activity of C.nardus’ essential oils with different concentrations against breast cancer Michigan Cancer Foundation-7 (MCF-7) cells. Antiproliferation test was carried out with total cells method using trypan blue and cells were calculated using a microscope. Gas Chromatography-Mass Sp

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3

Cozzolino, Rosaria, Matteo Stocchero, Rosa Perestrelo, and José S. Câmara. "Comprehensive Evaluation of the Volatomic Fingerprint of Saffron from Campania towards Its Authenticity and Quality." Foods 11, no. 3 (2022): 366. http://dx.doi.org/10.3390/foods11030366.

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The volatile profiles of eight saffron samples (seven cultivated and one spontaneous) grown in different geographical districts within the Campania region (southern Italy) were compared. Using headspace solid-phase microextraction coupled to gas chromatography–mass spectrometry (HS-SPME/GC-MS), overall, 80 volatiles were identified in the eight landraces. Among them, safranal and its isomers and other related compounds such as isophorones, which are not only key odorants but also pharmacologically active metabolites, have been detected in all the investigated samples. Principal Component Analy

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Zheng, Yucheng, Pengjie Wang, Xuejin Chen, Yun Sun, Chuan Yue, and Naixing Ye. "Transcriptome and Metabolite Profiling Reveal Novel Insights into Volatile Heterosis in the Tea Plant (Camellia Sinensis)." Molecules 24, no. 18 (2019): 3380. http://dx.doi.org/10.3390/molecules24183380.

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Tea aroma is a key indicator for evaluating tea quality. Although notable success in tea aroma improvement has been achieved with heterosis breeding technology, the molecular basis underlying heterosis remains largely unexplored. Thus, the present report studies the tea plant volatile heterosis using a high-throughput next-generation RNA-seq strategy and gas chromatography–mass spectrometry. Phenotypically, we found higher terpenoid volatile and green leaf volatile contents by gas chromatography–mass spectrometry in the F1 hybrids than in their parental lines. Volatile heterosis was obvious in

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Xiang, Nan, Hui Xie, Liuwei Qin, Min Wang, Xinbo Guo, and Wen Zhang. "Effect of Climate on Volatile Metabolism in ‘Red Globe’ Grapes (Vitis vinifera L.) during Fruit Development." Foods 11, no. 10 (2022): 1435. http://dx.doi.org/10.3390/foods11101435.

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With unique flavor and nutritional value, grapes are popular for eating and for the byproducts obtained in their processing. This study cultivated a popular grape variety, ‘Red Globe’, in two regions with different climates to investigate the discrepancies in their volatiles in response to climate. Saccharides, organic acids and transcriptomic and volatile metabolic analyses were studied separately via GC-FID, RNA sequencing and GC-MS/MS methods during the development of grape berries. In total, 83 volatiles were determined in samples, with (E)-2-hexenal the most abundant. Fatty acid derivativ

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Pennerman, Kayla K., Guohua Yin, and Joan W. Bennett. "Eight-carbon volatiles: prominent fungal and plant interaction compounds." Journal of Experimental Botany 73, no. 2 (2021): 487–97. http://dx.doi.org/10.1093/jxb/erab438.

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Abstract Signaling via volatile organic compounds (VOCs) has historically been studied mostly by entomologists; however, botanists and mycologists are increasingly aware of the physiological potential of chemical communication in the gas phase. Most research to date focuses on the observed effects of VOCs on different organisms such as differential growth or metabolite production. However, with the increased interest in volatile signaling, more researchers are investigating the molecular mechanisms for these effects. Eight-carbon VOCs are among the most prevalent and best-studied fungal volati

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Kaczmarska, Kornelia, Matthew Taylor, Udayasika Piyasiri, and Damian Frank. "Flavor and Metabolite Profiles of Meat, Meat Substitutes, and Traditional Plant-Based High-Protein Food Products Available in Australia." Foods 10, no. 4 (2021): 801. http://dx.doi.org/10.3390/foods10040801.

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Demand for plant-based proteins and plant-based food products is increasing globally. This trend is driven mainly by global population growth and a consumer shift towards more sustainable and healthier diets. Existing plant-based protein foods and meat mimetics often possess undesirable flavor and sensory properties and there is a need to better understand the formation of desirable meat-like flavors from plant precursors to improve acceptance of novel high-protein plant foods. This study aimed to comprehensively characterize the non-volatile flavor metabolites and the volatiles generated in g

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Özcan Aykutlu, Aysel, Serdar Makbul, Kamil Coşkunçelebi, and Fatih Seyis. "Secondary Volatile Metabolite Composition in Scorzonera pseudolanata Grossh. Plant Parts." Plants 14, no. 11 (2025): 1624. https://doi.org/10.3390/plants14111624.

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Scorzonera species exhibit various biological activities largely dependent on their chemical composition. While numerous studies have investigated these species’ secondary volatile metabolite content, to our knowledge, this is the first comprehensive study focused on Scorzonera pseudolanata. The present study aimed to identify and analyze the secondary volatile metabolites in different parts of S. pseudolanata. The composition of these metabolites was determined using gas chromatography–mass spectrometry (GC-MS). The resulting data were further analyzed through biplot analysis to differentiate

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9

Kiyota, H., S. Otsuka, A. Yokoyama, S. Matsumoto, H. Wada, and S. Kanazawa. "Effects of highly volatile organochlorine solvents on nitrogen metabolism and microbial counts." Soil and Water Research 7, No. 3 (2012): 109–16. http://dx.doi.org/10.17221/30/2011-swr.

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The effects of highly volatile organochlorine solvents (1,1,1-trichloroethane, TCET; trichloroethylene, TCE; and tetrachloroethylene, PCE) on soil nitrogen cycle and microbial counts were investigated using volcanic ash soil with different fertilizations. All the solvents significantly inhibited the activity of the cycle under the sealed conditions with 10 to 50 mg/g (dry soil) solvents added. No significant difference between the solvents, and between fertilization plots, was observed. Nitrate ion was not accumulated, and instead, ammonium ion was highly accumulated in the presence of the sol

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Misran, Azizah, Priya Padmanabhan, J. Alan Sullivan, Shahrokh Khanizadeh, and Gopinadhan Paliyath. "Composition of phenolics and volatiles in strawberry cultivars and influence of preharvest hexanal treatment on their profiles." Canadian Journal of Plant Science 95, no. 1 (2015): 115–26. http://dx.doi.org/10.4141/cjps-2014-245.

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Misran, A., Padmanabhan, P., Sullivan, J. A., Khanizadeh, S. and Paliyath, G. 2015. Composition of phenolics and volatiles in strawberry cultivars and influence of preharvest hexanal treatment on their profiles. Can. J. Plant Sci. 95: 115–126. Biochemical changes of quality-determining components were evaluated in strawberry fruit subjected to preharvest spray treatments using a hexanal-containing formulation that is known to enhance shelf life and quality of fruits. Phenolic compounds and volatiles of fruits of four strawberry cultivars (Mira, Jewel, Kent, and St. Pierre) grown in southern On

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11

Masriany, Masriany, Rizkita R. Esyanti, Fenny M. Dwivany, and Tjandra Anggraeni. "Banana Flower-Insect Interaction: Alpha-Pinene as Potential Attractant for the Insect Vector of Banana Blood Disease." HAYATI Journal of Biosciences 27, no. 1 (2020): 8. http://dx.doi.org/10.4308/hjb.27.1.8.

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Volatile metabolites are produced by plants for self-defense and as communication mediators with the environment. Terpenes are volatiles emitted as odorant cues for herbivores and microorganisms. This study was aimed to investigate volatile metabolites produced by banana flowers that attract insect vectors of BBD. The volatile metabolites from banana flowers were extracted by headspace-solid phase microextraction (HS-SPME) and identified by gas chromatography–mass spectrometry (GC-MS). It was apparent that the concentrations of the metabolite alpha-pinene gradually increased from the first to

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12

Derbali, Ezzedine, Louis-Philippe Vezina, and Joseph Makhlouf. "Effects of Anaerobic Atmosphere on the Metabolism of Sulfur Volatile Compounds Produced by Broccoli." HortScience 31, no. 4 (1996): 635e—635. http://dx.doi.org/10.21273/hortsci.31.4.635e.

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Objectionable off-odors are produced by broccoli (Brassica oleracea, L.) when it is held under anaerobic conditions. These off-odors were attributed to sulfur volatile compounds mainly methanethiol (MT) and hydrogen sulfide. The present study was undertaken to investigate the effects of anaerobic conditions on the metabolism and emission of sulfur volatiles by broccoli. Inhibition assays using aminooxyacetic acid (AOA)—a potential inhibitor of pyridoxal-phosphate-dependent enzymes-confirmed the enzymatic origin of these volatiles. However, anaerobic atmosphere had no inducible effect on the en

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13

Lu, Xinxin, Lei Zhang, Wenyue Huang, et al. "Integrated Volatile Metabolomics and Transcriptomics Analyses Reveal the Influence of Infection TuMV to Volatile Organic Compounds in Brassica rapa." Horticulturae 8, no. 1 (2022): 57. http://dx.doi.org/10.3390/horticulturae8010057.

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Turnip mosaic virus (TuMV), which is distributed almost all over the world and has a wide range of hosts, mainly brassica crops, was first described in Brassica rapa in the USA. Plant volatile compounds play an important role in the host searching behavior of natural enemies of herbivorous insects. In this study, TuMV-inoculated resistant and susceptible B. rapa lines were tested using volatile metabolome and transcriptome analyses. In volatile metabolome analysis, the volatile organic compounds (VOCs) were different after inoculation with TuMV in resistant B80124 and susceptible B80461, and t

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14

Park, Min-Kyung, Soyeon Lee, and Young-Suk Kim. "Effects of pH and Osmotic Changes on the Metabolic Expressions of Bacillus subtilis Strain 168 in Metabolite Pathways including Leucine Metabolism." Metabolites 12, no. 2 (2022): 112. http://dx.doi.org/10.3390/metabo12020112.

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Bacillus subtilis is often exposed to diverse culture conditions with the aim of improving hygiene or food quality. This can lead to changes in the volatile metabolite profiles related to the quality of fermented foods. To comprehensively interpret the associated metabolic expressions, changes in intracellular primary and extracellular secondary volatile metabolites were investigated by exposing B. subtilis to an alkaline pH (BP, pH 8.0) and a high salt concentration (BS, 1 M). In particular, B. subtilis was cultured in a leucine-enriched medium to investigate the formation of leucine-derived

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15

Yang, Shunbo, Dongmei Li, Shanshan Li, Huijuan Yang, and Zhengyang Zhao. "GC-MS Metabolite and Transcriptome Analyses Reveal the Differences of Volatile Synthesis and Gene Expression Profiling between Two Apple Varieties." International Journal of Molecular Sciences 23, no. 6 (2022): 2939. http://dx.doi.org/10.3390/ijms23062939.

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Aroma is a key quality attribute of apples, making major contributions to commercial value and consumer choice. However, the mechanism underlying molecular regulation of aroma formation genes and transcription factors remains poorly understood in apples. Here, we investigated the aroma volatile profiles of two apple varieties with distinctive flavors using headspace solid-phase microextraction (HS-SPME) combined with gas chromatography–mass spectrometry (GC-MS). A total of 35 volatile compounds were identified in Granny Smith and Jonagold apples. Aldehydes were the most abundant volatiles cont

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16

Mattheis, J. P., and D. A. Buchanan. "CHANGE IN SYNTHESIS OF NON-ETHYLENE VOLATILES FOLLOWING APPLE FRUIT STORAGE IN ATMOSPHERES INDUCING ANAEROBIC METABOLISM." HortScience 25, no. 9 (1990): 1146c—1146. http://dx.doi.org/10.21273/hortsci.25.9.1146c.

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Apple fruit storage lie is prolonged by low-oxygen cold storage, however, ethanol accumulates when oxygen concentration is reduced below the Pasteur point, Upon return to aerobic conditions, dissipation of ethanol occurs due to physical (evaporation) and biochemical processes. Oxidation of ethanol by apple fruit occurs at a slow rate, but ethanol also serves es a substrate for fruit volatile synthesis. This study was conducted to determine changes in concentrations of ethanol and other non-ethylene apple fruit volatiles following periods of anaerobiosis. `Delicious' apples were obtained from a

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17

Abdullah, Azian Azamimi, Md Altaf-Ul-Amin, Naoaki Ono, et al. "Development and Mining of a Volatile Organic Compound Database." BioMed Research International 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/139254.

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Volatile organic compounds (VOCs) are small molecules that exhibit high vapor pressure under ambient conditions and have low boiling points. Although VOCs contribute only a small proportion of the total metabolites produced by living organisms, they play an important role in chemical ecology specifically in the biological interactions between organisms and ecosystems. VOCs are also important in the health care field as they are presently used as a biomarker to detect various human diseases. Information on VOCs is scattered in the literature until now; however, there is still no available datab

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Zaman, Rashaduz, Courtney May, Aziz Ullah, and Nadir Erbilgin. "Bark Beetles Utilize Ophiostomatoid Fungi to Circumvent Host Tree Defenses." Metabolites 13, no. 2 (2023): 239. http://dx.doi.org/10.3390/metabo13020239.

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Bark beetles maintain symbiotic associations with a diversity of microbial organisms, including ophiostomatoid fungi. Studies have frequently reported the role of ophiostomatoid fungi in bark beetle biology, but how fungal symbionts interact with host chemical defenses over time is needed. We first investigated how inoculations by three fungal symbionts of mountain pine beetle affect the terpene chemistry of live lodgepole pine trees. We then conducted a complimentary laboratory experiment specifically measuring the host metabolite degradation by fungi and collected the fungal organic volatile

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19

H.J. Lee, Jisun, Henry O. Awika, Guddadarangavvanahally K. Jayaprakasha, Carlos A. Avila, Kevin M. Crosby, and Bhimanagouda S. Patil. "Tomato Metabolic Changes in Response to Tomato-Potato Psyllid (Bactericera cockerelli) and Its Vectored Pathogen Candidatus Liberibacter solanacearum." Plants 9, no. 9 (2020): 1154. http://dx.doi.org/10.3390/plants9091154.

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The bacterial pathogen ‘Candidatus Liberibacter solanacearum’ (Lso) is transmitted by the tomato potato psyllid (TPP), Bactericera cockerelli, to solanaceous crops. In the present study, the changes in metabolic profiles of insect-susceptible (cv CastleMart) and resistant (RIL LA3952) tomato plants in response to TPP vectoring Lso or not, were examined after 48 h post infestation. Non-volatile and volatile metabolites were identified and quantified using headspace solid-phase microextraction equipped with a gas chromatograph-mass spectrometry (HS-SPME/GC-MS) and ultra-high pressure liquid chro

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Wu, Rui, Huiling Liang, Nan Hu, Jiajia Lu, Chunfang Li, and Desong Tang. "Chemical, Sensory Variations in Black Teas from Six Tea Cultivars in Jingshan, China." Foods 14, no. 9 (2025): 1558. https://doi.org/10.3390/foods14091558.

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The development of black tea quality is the outcome of the synergistic interaction between tea cultivars and the ecological environment of the production area, including factors such as climate, soil, and cultivation practices. Nevertheless, within a specific geographical region, systematic analysis of the environmental regulation mechanisms governing processing adaptability and quality formation among different cultivars remains insufficient. This study evaluated six Camellia sinensis cultivars from the Jingshan region of Hangzhou, China, integrating non-targeted metabolomics, sensory profili

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Sovova, Kristyna, Tom Wiggins, Sheraz R. Markar, and George B. Hanna. "Quantification of phenol in urine headspace using SIFT-MS and investigation of variability with respect to urinary concentration." Analytical Methods 7, no. 12 (2015): 5134–41. http://dx.doi.org/10.1039/c5ay01051a.

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Huda, Nurul, Witiyasti Imaningsih, and Safinah Surya Hakim. "Uji Antagonisme Kapang Endofit Tanaman Galam (Melaleuca cajuputi) terhadap Colletotrichum truncatum." Jurnal Mikologi Indonesia 3, no. 2 (2019): 59. http://dx.doi.org/10.46638/jmi.v3i2.62.

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Galam (Melaleuca cajuputi) adalah spesies asli dari lahan gambut yang secara alami hidup berasosiasi dengan kapang endofit. Kapang endofit dikenal karena kemampuannya sebagai biofungisida. Penelitian ini bertujuan untuk mengetahui kemampuan kapang endofit yang diisolasi dari pohon Galam untuk menghambat pertumbuhan kapang pathogen Colletotrichum truncatum (Schwein.) Andrus & W.D. Moore dan menganalisis mekanisme penghambatannya. Tahapan penelitian ini meliputi (a) isolasi kapang endofit; (b) seleksi kapang endofit; (c) uji patogenisitas dan antagonis kapang endofit; (d) uji kemampuan metab

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23

Chóez-Guaranda, Ivan, María Maridueña-Zavala, Adela Quevedo, María Quijano-Avilés, Patricia Manzano, and Juan M. Cevallos-Cevallos. "Changes in GC-MS metabolite profile, antioxidant capacity and anthocyanins content during fermentation of fine-flavor cacao beans from Ecuador." PLOS ONE 19, no. 3 (2024): e0298909. http://dx.doi.org/10.1371/journal.pone.0298909.

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The fermentation of fine-flavor cacao beans is a key process contributing to the enhancement of organoleptic attributes and monetary benefits for cacao farmers. This work aimed to describe the dynamics of the gas chromatography-mass spectrometry (GC-MS) metabolite profile as well as the antioxidant capacity and anthocyanin contents during fermentation of fine-flavor cacao beans. Samples of Nacional x Trinitario cacao beans were obtained after 0, 24, 48, 72, 96, and 120 hours of spontaneous fermentation. Total phenolic content (TPC), ferric reducing antioxidant power (FRAP), and total anthocyan

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Byun, Hyung-Gi, Joon-Boo Yu, Chong-Yun Kang, Byoung Kuk Jang, and Hae-Ryong Lee. "Comparative Analysis between Blood Test and Breath Analysis Using Sensors Array for Diabetic Patients." Proceedings 14, no. 1 (2019): 22. http://dx.doi.org/10.3390/proceedings2019014022.

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Goliáš, J., P. Hic, and J. Kaňová. "Effect of low oxygen storage conditions on volatile emissions and anaerobic metabolite concentrations in two plum fruit cultivars." Horticultural Science 37, No. 4 (2010): 145–54. http://dx.doi.org/10.17221/78/2009-hortsci.

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By harvest time, small amounts of acetaldehyde were accumulated in the flesh of plums, such as 0.31 mg/l for the cv. Stanley and 1.03 mg/l for the cv. Valjevka. This relative difference in concentrations remained constant throughout the whole period of storage in a regular atmosphere. The long-term effects of higher concentrations of CO<sub>2</sub> are the same as for very low oxygen concentrations; and significant amounts of ethanol accumulate in the tissue. Out of a total number of 42 different odour compounds identified in the juice, there were 11 alcohols, 6 aldehydes, 17 ester

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Goh, Rui Min Vivian, Aileen Pua, Francois Luro, et al. "Distinguishing citrus varieties based on genetic and compositional analyses." PLOS ONE 17, no. 4 (2022): e0267007. http://dx.doi.org/10.1371/journal.pone.0267007.

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Simple sequence repeats (SSR) markers and secondary metabolite composition were used in combination to study seven varieties of citrus for the first time. With reference to established accessions of citrus, two of the varieties (Chanh Giay and Ma Nao Pan) were predicted to be Mexican key limes, while three were mandarin hybrids (Nagpur, Pontianak and Dalandan) and the remaining two (Qicheng and Mosambi) were related to the sweet orange. Notably, Dalandan was genetically more like a mandarin despite often referred to as an orange locally, whereas Mosambi was more likely to be a sweet orange hyb

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Filipiak, Wojciech, Karol Jaroch, Paulina Szeliska, Karolina Żuchowska, and Barbara Bojko. "Application of Thin-Film Microextraction to Analyze Volatile Metabolites in A549 Cancer Cells." Metabolites 11, no. 10 (2021): 704. http://dx.doi.org/10.3390/metabo11100704.

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Volatile organic compounds (VOCs) have been proposed in the last two decades as biomarkers for disease detection and therapeutic monitoring. Model in vitro experiments with established cell lines are fundamental to clarify whether given VOCs originate from normal human cells or pathogens, including transformed cancer cells. Due to the trace concentrations of target metabolites, adsorptive enrichment is needed before gas chromatography-mass spectrometry (GC-MS) analysis, with solid-phase microextraction (SPME) being perfectly suited for this purpose. Here, a modification of SPME, the thin-film

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Ifediora, R. G., C. O. Anyamene, M. O. Ikele, and C. U. Ezebialu. "GC-MS Based Metabolomic Profiling of Streptomyces clavuligerus Isolated from Ocimum gratissimum Rhizosphere." Journal of Advances in Microbiology 23, no. 8 (2023): 28–35. http://dx.doi.org/10.9734/jamb/2023/v23i8741.

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Streptomyces clavuligerus is a member of the Actinobacteria family primarily known for its production of clavulanic acid antibiotic. The need for identification of new antimicrobials led to the identification of volatile components of S. clavuligerus metabolites using GC-MS. The isolate was obtained from Ocimum gratissimum rhizosphere using starch casein agar, and identified using molecular typing. The preliminary antibacterial screening of the isolate was carried out using some indicator bacteria from wound sites and urinary tract infection. Its bioactive metabolites were obtained using sub-m

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K, Sabina, Gayathridevi S, and Pavithraa S. "Exploration of Antagonistic Fungi From Rhizospheric Soil Against Phytopathogens of Solanum melongena and Citrus sinensis." Indian Journal of Science and Technology 16, no. 14 (2023): 1090–98. https://doi.org/10.17485/IJST/v16i14.2395.

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Abstract <strong>Objectives:</strong> To explore the antagonistic activity of rhizospheric fungi against the phytopathogens of Solanum melongena (Brinjal) and Citrus sinensis (Orange), as these diseases cause major economic loss in the respective plants. <strong>Methods:</strong> Phytopathogens were isolated from infected leaves and fruits. Fungi were isolated from the rhizosphere of respective plants. Fungal isolates were screened for antagonism against phytopathogens and positive isolates were identified. Assays were conducted for volatile and non-volatile compounds from the a

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Martin, Helen J., James C. Reynolds, Svetlana Riazanskaia, and C. L. Paul Thomas. "High throughput volatile fatty acid skin metabolite profiling by thermal desorption secondary electrospray ionisation mass spectrometry." Analyst 139, no. 17 (2014): 4279–86. http://dx.doi.org/10.1039/c4an00134f.

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Global VOC skin metabolite profiling. Thermal desorption secondary electrospray ionisation time-of-flight mass spectrometry classifies skin odour phenotypes by targeted volatile fatty analysis. Examination of the mass spectra reveals the potential for global metabolic studies.

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Pinto, Joana, Ângela Carapito, Filipa Amaro, et al. "Discovery of Volatile Biomarkers for Bladder Cancer Detection and Staging through Urine Metabolomics." Metabolites 11, no. 4 (2021): 199. http://dx.doi.org/10.3390/metabo11040199.

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Timely diagnosis is crucial to improve the long-term survival of bladder cancer (BC) patients. The discovery of new BC biomarkers based in urine analysis is very attractive because this biofluid is in direct contact with the inner bladder layer, in which most of the neoplasms develop, and is non-invasively collected. Hence, this work aimed to unveil alterations in the urinary volatile profile of patients diagnosed with BC compared with cancer-free individuals, as well as differences among patients diagnosed at different tumor stages, to identify candidate biomarkers for non-invasive BC diagnos

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Farag, Mohamed A., Asmaa M. Otify, Aly M. El-Sayed, et al. "Sensory Metabolite Profiling in a Date Pit Based Coffee Substitute and in Response to Roasting as Analyzed via Mass Spectrometry Based Metabolomics." Molecules 24, no. 18 (2019): 3377. http://dx.doi.org/10.3390/molecules24183377.

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Interest in developing coffee substitutes is on the rise, to minimizing its health side effects. In the Middle East, date palm (Phoenix dactylifera L.) pits are often used as a coffee substitute post roasting. In this study, commercially-roasted date pit products, along with unroasted and home-prepared roasted date pits, were subjected to analyses for their metabolite composition, and neuropharmacological evaluation in mice. Headspace SPME-GCMS and GCMS post silylation were employed for characterizing its volatile and non-volatile metabolite profile. For comparison to roasted coffee, coffee pr

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Yuan, Fang, Shiying Yan, and Jian Zhao. "Elucidating the Phytochemical Landscape of Leaves, Stems, and Tubers of Codonopsis convolvulacea through Integrated Metabolomics." Molecules 29, no. 13 (2024): 3193. http://dx.doi.org/10.3390/molecules29133193.

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Codonopsis convolvulacea is a highly valued Chinese medicinal plant containing diverse bioactive compounds. While roots/tubers have been the main medicinal parts used in practice, leaves and stems may also harbor valuable phytochemicals. However, research comparing volatiles across tissues is lacking. This study performed metabolomic profiling of leaves, stems, and tubers of C. convolvulacea to elucidate tissue-specific accumulation patterns of volatile metabolites. Ultra-high performance liquid chromatography–tandem mass spectrometry identified 302 compounds, belonging to 14 classes. Multivar

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Zou, Jing, Yinghong Hu, Kuo Li, et al. "Chestnuts in Fermented Rice Beverages Increase Metabolite Diversity and Antioxidant Activity While Reducing Cellular Oxidative Damage." Foods 12, no. 1 (2022): 164. http://dx.doi.org/10.3390/foods12010164.

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Foods containing chestnuts (Castanea mollissima Blume) are relatively uncommon, despite the high nutrient and starch contents and purported health benefits. In this study, we examine the flavor-related metabolites, volatile compounds, and amino acids in a traditional glutinous rice fermented beverage supplemented with chestnuts as a fermentation substrate for lactic acid bacteria (LAB). Changes in antioxidant activity towards free radicals and effects on cellular oxidative stress are compared between beverages with or without chestnuts. The fermented chestnut-rice beverage (FCRB) has higher se

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Zokir, Toshmatov Ilkham Kurbanbaev Jasur Juraev Sokhiba Abdushukirova Tursunali Xolikov Yulduzoy Khojamkulova Mahbuba Bozorova. "Metabolism of volatile metabolites in soybean varieties infected by Fusarium oxysporum." Journal of Wildlife and Biodiversity 8, no. 4 (2024): 138–47. https://doi.org/10.5281/zenodo.13823834.

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This is the first report of screening for volatile metabolite metabolism in local soybean cultivars affected by Fusarium blight. Volatile metabolites in the aerial and root parts of three local soybean varieties (<em>Glycine max</em> (L.) Merr.) infected with the <em>Fusarium oxysporum</em> fungus were monitored using gas chromatography. The results showed no significant differences in the volatile metabolites between the above-ground and root parts of the plants. However, as the disease progressed, an increase in the number of similar metabolites was observed in the root parts. Conversely, th

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Issitt, Theo, Sean T. Sweeney, William J. Brackenbury, and Kelly R. Redeker. "Sampling and Analysis of Low-Molecular-Weight Volatile Metabolites in Cellular Headspace and Mouse Breath." Metabolites 12, no. 7 (2022): 599. http://dx.doi.org/10.3390/metabo12070599.

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Volatile compounds, abundant in breath, can be used to accurately diagnose and monitor a range of medical conditions. This offers a noninvasive, low-cost approach with screening applications; however, the uptake of this diagnostic approach has been limited by conflicting published outcomes. Most published reports rely on large scale screening of the public, at single time points and without reference to ambient air. Here, we present a novel approach to volatile sampling from cellular headspace and mouse breath that incorporates multi-time-point analysis and ambient air subtraction revealing co

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Speckbacher, Verena, Susanne Zeilinger, Stefan Zimmermann, Christopher A. Mayhew, Helmut Wiesenhofer, and Veronika Ruzsanyi. "Monitoring the volatile language of fungi using gas chromatography-ion mobility spectrometry." Analytical and Bioanalytical Chemistry 413, no. 11 (2021): 3055–67. http://dx.doi.org/10.1007/s00216-021-03242-6.

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AbstractFusarium oxysporum is a plant pathogenic fungus leading to severe crop losses in agriculture every year. A sustainable way of combating this pathogen is the application of mycoparasites—fungi parasitizing other fungi. The filamentous fungus Trichoderma atroviride is such a mycoparasite that is able to antagonize phytopathogenic fungi. It is therefore frequently applied as a biological pest control agent in agriculture. Given that volatile metabolites play a crucial role in organismic interactions, the major aim of this study was to establish a method for on-line analysis of headspace m

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Stefanus, Sio, I. G. Mahardika, I. B. G. Partama, and N. N. Suryani. "Rumen Metabolite of Balinese Cows that Being Given Stewed Water of Lannea coromandelica Peel as Feed Additive." International Research Journal of Engineering, IT & Scientific Research 3, no. 5 (2017): 24. http://dx.doi.org/10.21744/irjeis.v3i5.531.

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The research has been conducted to find out rumen metabolite of Balinese cows that being given stewed water of Lannea coromandelica peel as a feed additive. The research used group random design (RAK) with 4 treatments of rations and 3 times repetition. Each repetition used three Balinese cows. The weight of cows being used ranging between 137.5 – 235 kg. Basic rations being given were equal, arranged based on a percentage of dry material (% DM) namely: 50% of arrow grass, 20% of gamal leaves (Gliricidia sepium), 1% of urea and 29% of rice bran. Whereas for treatment was feed additive level. T

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Tang, Kuo-Tung, Yu-Sin Chen, Mey-Fann Lee, et al. "Exposure to Volatile Organic Compounds May Contribute to Atopic Dermatitis in Adults." Biomedicines 12, no. 7 (2024): 1419. http://dx.doi.org/10.3390/biomedicines12071419.

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Background: Volatile organic compounds (VOC) are major indoor air pollutants. Previous studies reported an association between VOC exposure and allergic diseases. Here, we aimed to explore the relationship between VOC exposure and atopic dermatitis (AD) in adults. Methods: We prospectively enrolled 31 adult AD patients and 11 healthy subjects as controls. Urine metabolite levels of VOCs, including 1.3-butadiene, acrylamide, benzene, toluene, and xylene, were all determined with liquid chromatography–mass spectrometry. The relationship between AD and log-transformed urine levels of VOC metaboli

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Pan, D. D., Z. Wu, T. Peng, X. Q. Zeng, and H. Li. "Volatile organic compounds profile during milk fermentation by Lactobacillus pentosus and correlations between volatiles flavor and carbohydrate metabolism." Journal of Dairy Science 97, no. 2 (2014): 624–31. http://dx.doi.org/10.3168/jds.2013-7131.

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Kharasch, Evan D., Jesara L. Schroeder, H. Denny Liggitt, Sang B. Park, Dale Whittington, and Pamela Sheffels. "New Insights into the Mechanism of Methoxyflurane Nephrotoxicity and Implications for Anesthetic Development (Part 1)." Anesthesiology 105, no. 4 (2006): 726–36. http://dx.doi.org/10.1097/00000542-200610000-00019.

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Background Methoxyflurane nephrotoxicity results from biotransformation; inorganic fluoride is a toxic metabolite. Concern exists about potential renal toxicity from volatile anesthetic defluorination, but many anesthetics increase fluoride concentrations without consequence. Methoxyflurane is metabolized by both dechlorination to methoxydifluoroacetic acid (MDFA, which may degrade to fluoride) and O-demethylation to fluoride and dichloroacetatic acid. The metabolic pathway responsible for methoxyflurane nephrotoxicity has not, however, been identified, which was the aim of this investigation.

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Kharasch, Evan D., Jesara L. Schroeder, H. Denny Liggitt, Dustin Ensign, and Dale Whittington. "New Insights into the Mechanism of Methoxyflurane Nephrotoxicity and Implications for Anesthetic Development (Part 2)." Anesthesiology 105, no. 4 (2006): 737–45. http://dx.doi.org/10.1097/00000542-200610000-00020.

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Background Methoxyflurane nephrotoxicity results from its metabolism, which occurs by both dechlorination (to methoxydifluoroacetic acid [MDFA]) and O-demethylation (to fluoride and dichloroacetic acid [DCAA]). Inorganic fluoride can be toxic, but it remains unknown why other anesthetics, commensurately increasing systemic fluoride concentrations, are not toxic. Fluoride is one of many methoxyflurane metabolites and may itself cause toxicity and/or reflect formation of other toxic metabolite(s). This investigation evaluated the disposition and renal effects of known methoxyflurane metabolites.

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Ao, Cun, Xiaojun Niu, Haitao Huang, Jizhong Yu, and Zhiqiang Cheng. "Metabolite Analysis of Hangzhou Gongmei White Tea of Different Varieties." Foods 14, no. 9 (2025): 1622. https://doi.org/10.3390/foods14091622.

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To comprehensively understand the quality characteristics and key characteristic metabolites of Hangzhou Gongmei white tea (HGW), an integrated approach involving sensory evaluation, chemical composition analysis, gas chromatography–mass spectrometry (GC-MS), and liquid chromatography–mass spectrometry (LC-MS) was employed to analyse the volatile and non-volatile metabolites of tea samples from different varieties. Compared to the Fudingdabai (FD) variety, the Jiukeng (JK) and Longjing (LJ) varieties exhibited more pronounced fruity or floral aromas and stronger taste profiles. The elevated co

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Berrou, Kevin, Catherine Dunyach-Remy, Jean-Philippe Lavigne, Benoit Roig, and Axelle Cadiere. "Comparison of Stir Bar Sorptive Extraction and Solid Phase Microextraction of Volatile and Semi-Volatile Metabolite Profile of Staphylococcus Aureus." Molecules 25, no. 1 (2019): 55. http://dx.doi.org/10.3390/molecules25010055.

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For the analysis of volatile bacterial compounds, solid phase microextraction (SPME) is currently the most widely used metabolite concentration technique. Recently, the potential of stir bar sorptive extraction (SBSE) for this use has been demonstrated. These two approaches were therefore used in combination with gas-chromatography coupled with mass-spectrometry (GC–MS) for the analysis of volatile and semi-volatile bacterial compounds produced by Staphylococcus aureus. In both cases, SPME and SBSE/headspace sorptive extraction (HSSE) enrichment was carried out in two coating phases. A whole a

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Ocan, David, Zhang Rongrong, Martin Odoch, et al. "Volatile Organic Compound Based Markers for the Aroma Trait of Rice Grain." Journal of Agricultural Science 12, no. 8 (2020): 92. http://dx.doi.org/10.5539/jas.v12n8p92.

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A study was conducted to determine the volatile organic compounds (VOCs) associated with rice grain aroma in 37 commonly grown lines within Uganda, as well as elites. The aim of the study was to identify potential volatile biochemical markers, if any, for the rice grain aroma trait. Certified rice seeds were obtained from the Uganda National Crops Resources Research Institute germplasm collection. The seeds were sown into experimental plots, under field conditions and the mature paddy harvested. Polished rice grains were heated to 80 oC and the liberated VOCs subjected to untargeted metabolite

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Lamoureux, G. L., D. G. Rusness, and P. Schroder. "Metabolism of a Diphenylether Herbicide to a Volatile Thioanisole and a Polar Sulfonic Acid Metabolite in Spruce (Picea)." Pesticide Biochemistry and Physiology 47, no. 1 (1993): 8–20. http://dx.doi.org/10.1006/pest.1993.1058.

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Guo, Hao, Jun Lai, Chun Li, et al. "Comparative Metabolomics Reveals Key Determinants in the Flavor and Nutritional Value of Coconut by HS-SPME/GC-MS and UHPLC-MS/MS." Metabolites 12, no. 8 (2022): 691. http://dx.doi.org/10.3390/metabo12080691.

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Coconut is a tropical fruit whose flesh has high flavor quality and nutritional value; however, the differences between coconut varieties are still unclear. Here, volatiles and non-volatiles were profiled at three ripening stages by HS-SPME/GC-MS and UHPLC-MS/MS in two coconut varieties (Hainan Tall, HT and Green Dwarf, GD). Four metabolite classes of volatiles were associated with good aroma including hydrocarbons, benzenoids, alcohols and esters, and these volatiles were generally higher in GD, especially at 7 and 9 months of coconut growth. Pathway-based metabolomics revealed that flavonols

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Aloum, Obadah, Mahesh J. Thalavitiya Acharige, Nour Ismail, et al. "2365. Volatile Metabolite-Based Detection of Clostridium difficile Infection (CDI)." Open Forum Infectious Diseases 6, Supplement_2 (2019): S815. http://dx.doi.org/10.1093/ofid/ofz360.2043.

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Abstract Background CDI is a frequent cause of morbidity and mortality in hospitalized patients. Despite advances in rapid CDI testing, there are often delays between the onset of symptoms and receipt of test results. We sought to test the hypothesis that the altered CDI intestinal microbiome has a unique volatile metabolite profile, distinct from the profile of patients with other causes of antibiotic-associated diarrhea, which potentially can be used to identify patients with CDI. Methods We prospectively collected fresh stool samples from inpatients with suspected CDI at an academic tertiar

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Brock, Nelson L., Christian A. Citron, Claudia Zell, et al. "Isotopically labeled sulfur compounds and synthetic selenium and tellurium analogues to study sulfur metabolism in marine bacteria." Beilstein Journal of Organic Chemistry 9 (May 15, 2013): 942–50. http://dx.doi.org/10.3762/bjoc.9.108.

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Members of the marine Roseobacter clade can degrade dimethylsulfoniopropionate (DMSP) via competing pathways releasing either methanethiol (MeSH) or dimethyl sulfide (DMS). Deuterium-labeled [2H6]DMSP and the synthetic DMSP analogue dimethyltelluriopropionate (DMTeP) were used in feeding experiments with the Roseobacter clade members Phaeobacter gallaeciensis DSM 17395 and Ruegeria pomeroyi DSS-3, and their volatile metabolites were analyzed by closed-loop stripping and solid-phase microextraction coupled to GC–MS. Feeding experiments with [2H6]DMSP resulted in the incorporation of a deuterium

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HIRAKAWA, KATAHISA. "Metabolism and organ derangement of volatile anesthetics." JOURNAL OF JAPAN SOCIETY FOR CLINICAL ANESTHESIA 13, no. 6 (1993): 504–14. http://dx.doi.org/10.2199/jjsca.13.504.

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