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Journal articles on the topic 'Ethyl crotonate'

Author: Grafiati

Published: 5 June 2025

Last updated: 24 June 2025

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1

Imada, Motosuke, Yasumasa Takenaka, Takeharu Tsuge та Hideki Abe. "Copolymers incorporated with β-substituted acrylate synthesized by organo-catalyzed group-transfer polymerization". Polymer Journal 53, № 9 (2021): 989–99. http://dx.doi.org/10.1038/s41428-021-00493-z.

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AbstractVarious copolymers incorporated with β-substituted acrylates, such as alkyl crotonates (e.g., methyl crotonate (MC), ethyl crotonate (EC), isopropyl crotonate (iPC), and n-butyl crotonate (nBC)) and methyl cinnamate (MCin), were synthesized by group-transfer polymerization (GTP) using a silicon-based Lewis acid catalyst. In addition to β-substituted acrylates, α-substituted acrylates (e.g., methyl methacrylate (MMA) and n-butyl methacrylate (nBMA)) were examined as comonomers. Proton nuclear magnetic resonance (1H NMR) spectroscopy and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) characterizations of the obtained copolymers revealed that each monomer component was incorporated sufficiently. The thermal stabilities of the resulting copolymers were investigated by dynamic mechanical analysis (DMA), indicating that the glass-transition temperature (Tg) of the copolymers can be widely varied over a relatively high-temperature range by selecting the optimal comonomer. More specifically, the Tg values of poly(MC-random-EC) (MC/EC molar ratio = 50/50), poly(MC-random-nBC) (MC/nBC molar ratio = 50/50), poly(MC-random-MCin) (MC/MCin molar ratio = 54/46), and poly(nBC-random-MCin) (nBC/MCin molar ratio = 56/44) were 173, 130, 216, and 167 °C, respectively.

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2

Lim, Boram, Huisu Yeo, Seunghyo Han, Dabin Kim, Hansuk Lee, and Sangho Koo. "Regioselective De Novo Synthesis of Phenolic Isoprenoids Grifolin and Neogrifolin." Applied Sciences 15, no. 3 (2025): 1438. https://doi.org/10.3390/app15031438.

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The total synthesis of biologically and pharmacologically important phenolic isoprenoids, grifolin and neogrifolin, was developed through simple allylation and cyclization procedures using only ethyl acetoacetate, ethyl crotonate, and farnesyl bromide as substrates. The regioisomeric terpenophenols, which consist solely of orcinol and farnesyl moieties, cannot be synthesized purely by direct coupling between the units. The regioselectivity issue was solved by controlling the timing of the allylation of β-ketoester with farnesyl bromide and the cyclization with ethyl crotonate. 2-Farnesyl-5-methyl-cyclohexane-1,3-dione and 6-farnesyl-5-methyl-cyclohexane-1,3-dione were prepared in a highly regioselective manner from ethyl acetoacetate in overall yields of 43% and 40%, respectively. The oxidative aromatization of the regioisomeric cyclohexane-1,3-diones produced grifolin and neogrifolin, respectively.

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3

Colomer, Juan P., María B. Blanco, Alicia B. Peñéñory, Ian Barnes, Peter Wiesen, and Mariano A. Teruel. "Arrhenius parameters for the OH-initiated degradation of methyl crotonate, methyl-3,3-dimethyl acrylate, (E)-ethyl tiglate and methyl-3-butenoate over the temperature range of 288–314 K." RSC Advances 6, no. 59 (2016): 53723–29. http://dx.doi.org/10.1039/c6ra10279d.

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The relative-rate technique has been employed to obtain rate coefficients for the reactions of OH radicals with methyl crotonate, methyl-3,3-dimethyl acrylate, (E)-ethyl tiglate and methyl-3-butenoate between 288 and 314 K in 760 Torr of air.

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4

Černý, Ivan, Vladimír Pouzar, Pavel Drašar, František Tureček та Miroslav Havel. "Steroids with the β-crotonate (2-butenoate) side chain". Collection of Czechoslovak Chemical Communications 51, № 1 (1986): 128–40. http://dx.doi.org/10.1135/cccc19860128.

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Ethyl (20E)-3β-methoxymethoxy-24-nor-5,20(22)-choladien-23-oate (Va) and analogous derivatives with 5α,5β and Δ5,14 steroid moiety (Vb,Vc and Vd, respectively) were prepared by Wittig-Horner reaction of the corresponding ketones IIa-IId with diethyl ethoxycarbonylmethylphosphonate. In this case the reaction affords exclusively the (E)-isomers, in contrast with the Peterson reaction with lithium salt of ethyl 2-(trimethylsilyl)acetate which gives a mixture of (E)- and (Z)-isomers at the Δ20(22) double bond. The structure of the products was confirmed by 1H NMR and 13C NMR spectroscopy. The crotonates Va-Vd were further converted into the 3-O-succinyl derivatives VIIIa-VIIId.

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5

Zhang, Guo, Xinyue Kang, Mingxiao Xie, et al. "Metabolic engineering of Saccharomyces cerevisiae for the biosynthesis of ethyl crotonate." LWT 168 (October 2022): 113908. http://dx.doi.org/10.1016/j.lwt.2022.113908.

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6

Teruel, Mariano A., Julio Benitez-Villalba, Norma Caballero, and María B. Blanco. "Gas-Phase Oxidation of Methyl Crotonate and Ethyl Crotonate. Kinetic Study of Their Reactions toward OH Radicals and Cl Atoms." Journal of Physical Chemistry A 116, no. 24 (2012): 6127–33. http://dx.doi.org/10.1021/jp2113889.

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7

HUHTANEN, C. N., H. TRENCHARD, and L. MILNES-McCAFFREY. "Inhibition of Clostridium botulinum in Comminuted Bacon by Short-Chain Alkynoic and Alkenoic Acids and Esters." Journal of Food Protection 48, no. 7 (1985): 570–73. http://dx.doi.org/10.4315/0362-028x-48.7.570.

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Several short-chain alkynoic and aikenoic acids and esters were screened for inhibition of gas production by Clostridium botulinum in cans of comminuted, nitrite-free, temperature-abused bacon. The most active compounds were propiolic (2-propynoic) acid, methyl and ethyl propiolate, 2-propenoic acid, methyl and ethyl propenoate, and mono- and dimethyl and ethyl fumarate. Maleic acid, methylmaleic acid, ethyl maleate, 2-methyl propenoic acid, trans-2-methyl crotonic acid, 3-methyl-2-butenoic acid, 3-methylallyl alcohol, vinyl crotonate, methylmalonic acid, dimethyl glutarate, 2,4-hexadien-1-ol, cis-3-hexenoic acid, 4-pentenoic acid, trans-2-pentenoic acid and ethylidene acetic acid were less active. A more comprehensive study on the inhibition of toxin formation by C. botulinum in comminuted nitrite-free bacon was done by comparing equimolar quantities of some of these compounds with NaNO2 at 120 μg/g and sorbic acid at 9 and 18 mM (0.10 and 0.20%). These studies showed that propiolic acid was more effective than either nitrite or sorbic acid. Compounds in this study less active than nitrite or sorbic acid were 3-methylallyl alcohol, 2,4-hexadien-1-ol, dimethyl glutarate and methylmaleic acid.

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8

Er, Hui-Teng, David L. Pole, and John Warkentin. "(Alkylthio)- and (phenylthio)methoxycarbenes from oxadiazolines." Canadian Journal of Chemistry 74, no. 8 (1996): 1480–89. http://dx.doi.org/10.1139/v96-165.

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Four 2-methoxy-5,5-dimethyl-Δ3-1,3,4-oxadiazolines bearing an alkylthio or arylthio group at C2 were prepared. The oxadiazolines undergo thermolysis at 60–80 °C in solution to afford the corresponding oxythiocarbene intermediates. In the absence of carbene traps, dimers of the carbenes were formed. The carbenes were trapped with ethyl crotonate, with dichloromaleic anhydride, with dimethyl acetylenedicarboxylate, and with phenyl isocyanate. Phenyl isocyanate traps methoxy(methylthio)carbene to form two types of adducts, both fundamentally different from the product obtained from reaction of dimethoxycarbene with phenyl isocyanate. All of the adducts have structures consistent with nucleophilic behaviour of the carbenes. Key words: oxythiocarbene, oxadiazoline, thermolysis, nucleophilic.

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9

Keller, Timothy J., and Thorsten Maly. "Overhauser dynamic nuclear polarization (ODNP)-enhanced two-dimensional proton NMR spectroscopy at low magnetic fields." Magnetic Resonance 2, no. 1 (2021): 117–28. http://dx.doi.org/10.5194/mr-2-117-2021.

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Abstract. The majority of low-field Overhauser dynamic nuclear polarization (ODNP) experiments reported so far have been 1D NMR experiments to study molecular dynamics and in particular hydration dynamics. In this work, we demonstrate the application of ODNP-enhanced 2D J-resolved (JRES) spectroscopy to improve spectral resolution beyond the limit imposed by the line broadening introduced by the paramagnetic polarizing agent. Using this approach, we are able to separate the overlapping multiplets of ethyl crotonate into a second dimension and clearly identify each chemical site individually. Crucial to these experiments is interleaved spectral referencing, a method introduced to compensate for temperature-induced field drifts over the course of the NMR acquisition. This method does not require additional hardware such as a field-frequency lock, which is especially challenging when designing compact systems.

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10

Parthasarathy, V., V. Dhanalakshmi, and R. Anbarasan. "Functionalization of Low Density Polyethylene with Ethyl Crotonate and Ethyl Salicylate in the Presence of Free Radical Initiator: FTIR-RI Kinetics Study." Asian Journal of Chemistry 25, no. 7 (2013): 3755–61. http://dx.doi.org/10.14233/ajchem.2013.13748.

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11

KIM, G., and Y. RYU. "ChemInform Abstract: A New Route to a Key Chiral Intermediate of Thienamycin from trans- Ethyl Crotonate." ChemInform 27, no. 46 (2010): no. http://dx.doi.org/10.1002/chin.199646274.

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12

Paik, Seunguk. "ChemInform Abstract: Chelation-Controlled Aldol Reaction of Silyl Dienolate Derived from Ethyl Crotonate with a Chiral Aldehyde." ChemInform 30, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.199930038.

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13

Mohrig, Jerry R., Sabrina S. Fu, Randall W. King, Ronald Warnet, and Gary Gustafson. "Stereochemistry of nucleophilic conjugate addition. Addition of ethanol-d and 2-methyl-2-propanethiol-d to ethyl crotonate." Journal of the American Chemical Society 112, no. 9 (1990): 3665–67. http://dx.doi.org/10.1021/ja00165a065.

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14

Gaona Colmán, Elizabeth, María B. Blanco, Ian Barnes, and Mariano A. Teruel. "Gas phase kinetics for the ozonolysis of n-butyl methacrylate, ethyl crotonate and vinyl propionate under atmospheric conditions." Chemical Physics Letters 579 (July 2013): 11–15. http://dx.doi.org/10.1016/j.cplett.2013.05.049.

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15

Pan, Y. Vickie, and Denice D. Denton. "Plasma dissociation reaction kinetics. II. Precursors related to methyl methacrylate: Methyl crotonate, methyl isobutyrate, ethyl methacrylate, and vinyl acetate." Journal of Applied Polymer Science 73, no. 1 (1999): 17–27. http://dx.doi.org/10.1002/(sici)1097-4628(19990705)73:1<17::aid-app2>3.0.co;2-y.

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16

Zhang, Qian, Junni Tang, Jing Deng, Zijian Cai, Xiaole Jiang, and Chenglin Zhu. "Effect of Capsaicin Stress on Aroma-Producing Properties of Lactobacillus plantarum CL-01 Based on E-Nose and GC–IMS." Molecules 29, no. 1 (2023): 107. http://dx.doi.org/10.3390/molecules29010107.

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Capsaicin stress, along with salt stress, could be considered the main stressors for lactic acid bacteria in traditional fermented pepper products. Until now, insufficient attention has been paid to salt stress, while the effect of capsaicin on the aroma-producing properties of Lactobacillus plantarum (L. plantarum) is unclear. The present study attempted to illustrate the effect of capsaicin stress on the aroma-producing properties of L. plantarum CL-01 isolated from traditionally fermented peppers based on E-nose and GC–IMS. The results showed that E-nose could clearly distinguish the overall flavor differences of L. plantarum CL-01 under capsaicin stress. A total of 48 volatile compounds (VOCs) were characterized by means of GC–IMS, and the main VOCs belonged to acids and alcohols. Capsaicin stress significantly promoted L. plantarum CL-01 to produce alpha-pinene, ethyl crotonate, isobutyric acid, trans-2-pentenal, 2-methyl-1-butanol, 3-methyl-3-buten-1-ol, 1-penten-3-one, 2-pentanone, 3-methyl-1-butanol-D, and 2-heptanone (p < 0.05). In addition, under capsaicin stress, the contents of 1-penten-3-one, 3-methyl-3-buten-1-ol, 5-methylfurfuryl alcohol, isobutanol, 2-furanmethanethiol, 2,2,4,6,6-pentamethylheptane, 1-propanethiol, diethyl malonate, acetic acid, beta-myrcene, 2-pentanone, ethyl acetate, trans-2-pentenal, 2-methylbutyl acetate, and 2-heptanone produced by L. plantarum CL-01 were significantly increased along with the fermentation time (p < 0.05). Furthermore, some significant correlations were observed between the response values of specific E-nose sensors and effective VOCs.

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17

Wen, Jinli, Yue Wang, Weiyu Cao, et al. "Comprehensive Evaluation of Ten Actinidia arguta Wines Based on Color, Organic Acids, Volatile Compounds, and Quantitative Descriptive Analysis." Foods 12, no. 18 (2023): 3345. http://dx.doi.org/10.3390/foods12183345.

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Actinidia arguta wine is a low-alcoholic beverage brewed from A. arguta with a unique flavor and sweet taste. In this study, the basic physicochemical indicators, color, organic acid, and volatile aroma components of wines made from the A. arguta varieties ‘Kuilv’, ‘Fenglv’, ‘Jialv’, ‘Wanlv’, ‘Xinlv’, ‘Pinglv’, ‘Lvbao’, ‘Cuiyu’, ‘Tianxinbao’, and ‘Longcheng No.2’ were determined, and a sensory evaluation was performed. The findings show that ‘Tianxinbao’ produced the driest extract (49.59 g/L), ‘Kuilv’ produced the most Vitamin C (913.46 mg/L) and total phenols (816.10 mg/L), ‘Jialv’ produced the most total flavonoids (477.12 mg/L), and ‘Cuiyu’ produced the most tannins (4.63 g/L). We analyzed the color of the A. arguta wines based on CIEL*a*b* parameters and found that the ‘Kuilv’ and ‘Longcheng No.2’ wines had the largest L* value (31.65), the ‘Pinglv’ wines had the greatest a* value (2.88), and the ‘Kuilv’ wines had the largest b* value (5.08) and C*ab value (5.66) of the ten samples. A total of eight organic acids were tested in ten samples via high-performance liquid chromatography (HPLC), and we found that there were marked differences in the organic acid contents in different samples (p < 0.05). The main organic acids were citric acid, quinic acid, and malic acid. The aroma description of a wine is one of the keys to its quality. A total of 51 volatile compounds were identified and characterized in ten samples with headspace gas chromatography-ion mobility spectrometry, including 24 esters, 12 alcohols, 9 aldehydes, 3 aldehydes, 2 terpenes, and 1 acid, with the highest total volatile compound content in ‘Fenglv’. There were no significant differences in the types of volatile compounds, but there were significant differences in the contents (p < 0.05). An orthogonal partial least squares discriminant analysis (OPLS-DA) based on the odor activity value (OAV) showed that ethyl butanoate, ethyl pentanoate, ethyl crotonate, ethyl isobutyrate, butyl butanoate, 2-methylbutanal, ethyl isovalerate, and ethyl hexanoate were the main odorant markers responsible for flavor differences between all the A. arguta wines. Sensory evaluation is the most subjective and effective way for consumers to judge A. arguta wine quality. A quantitative descriptive analysis (QDA) of the aroma profiles of ten grapes revealed that the ‘fruity’ and ‘floral’ descriptors are the main and most essential parts of the overall flavor of A. arguta wines. ‘Tianxinbao’ had the highest total aroma score. The flavor and quality of A. arguta wines greatly depend on the type and quality of the A. arguta raw material. Therefore, high-quality raw materials can improve the quality of A. arguta wines. The results of the study provide a theoretical basis for improving the quality of A. arguta wines and demonstrate the application prospects of HS-GC-IMS in detecting A. arguta wine flavors.

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18

Imada, Motosuke, Yasumasa Takenaka, Takeharu Tsuge, and Hideki Abe. "Effect of Disyndiotacticity on the Glass Transition Temperature of Poly(ethyl crotonate)s Synthesized by Group-Transfer Polymerization Catalyzed by Organic Acids." Macromolecules 53, no. 18 (2020): 7759–66. http://dx.doi.org/10.1021/acs.macromol.0c01122.

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19

Greenwood, Matthew E., and John H. Borden. "Co-baiting for spruce beetles, Dendroctonus rufipennis, and western balsam bark beetles, Dryocoetes confusus (Coleoptera: Scolytidae)." Canadian Journal of Forest Research 30, no. 1 (2000): 50–58. http://dx.doi.org/10.1139/x99-184.

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Co-baiting to contain and concentrate the spruce beetle, Dendroctonus rufipennis (Kirby), and the western balsam bark beetle, Dryocoetes confusus Swaine, was investigated at four locations in British Columbia. Two 9-ha areas were established at each location; one was baited and the other left as a control. Single "interior firs," Abies bifolia A. Murray × Abies lasiocarpa (Hook.) Nutt., or groups of two or three trees, were baited with (±)-exo-brevicomin released at 1.0 mg/24 h. "Interior spruces," Picea engelmannii Engelm. ex Parry × Picea glauca (Moench) Voss, were baited with frontalin released at 0.1, 0.6, or 2.5 mg/24 h, or at 0.6 mg/24 h with alpha-pinene, ethanol, or ethyl crotonate. Another experiment investigated possible interspecific interference between D. confusus and D. rufipennis baits. Ratios of currently attacked "green" trees to previously attacked "red" trees for both insects were significantly higher in baited than in control areas, indicating that populations were contained. Baiting, however, did not attract either insect from a zone surrounding each baited area. There was a significant increase in D. confusus attack when two trees instead of one were baited per centre, no increase in D. rufipennis attack when frontalin was released alone or with the potential adjuvants, no effect of frontalin release rates on the percentage of trees attacked by D. rufipennis, and no indication of cross-repellency between baits.

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20

Ding, Bo, Shutian Zhao, Wenxue Zhang, Ying Lin, and Ling Xiong. "The Effect of Co-Culture with Different Pichia kluyveri and Saccharomyces cerevisiae on Volatile Compound and Characteristic Fingerprints of Mulberry Wine." Foods 13, no. 3 (2024): 422. http://dx.doi.org/10.3390/foods13030422.

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In this study, changes in volatile compounds co-fermented by different Pichia kluyveri with Saccharomyces cerevisiae were analyzed using GC-IMS and compared with S. cerevisiae fermentation, to investigate the production of aroma in mulberry wine during the fermentation process. A total of 61 compounds were accurately identified, including 21 esters, 10 alcohols, 8 aldehydes, 6 ketones, and 19 other volatiles. Compared with the single strain fermentation (S. cerevisiae), the content of 2-methylpropyl acetate, allyl Isothiocyanate, ethyl crotonate, isobutyl propanoate, and butyl 2-methylbutanoate, co-fermentation groups (S. cerevisiae with different P. kluyveri) showed a significant decrease. Alcohols, aldehydes, ketones, and organic acid were lower in both the F(S-P1) and F(S-P2) groups than in the F(S) group throughout fermentation. The 2-methylpentanoic acid only was contained in the F(S) group. The co-fermentation with different P. kluyveri could also be well distinguished. The content of Benzaldehyde and 4-methylphenol in the F(S-P1) group was significantly lower than that in the F(S-P2) group. The PCA results revealed effective differentiation of mulberry wine fermented by different fermentation strains from GC-IMS. The result showed that P. kluyveri could establish a new flavor system for mulberry wine, which plays a crucial role in enhancing the flavor of fruit wine.

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21

Korotaev, Vladislav Yu, Igor B. Kutyashev, Alexey Yu Barkov, and Vyacheslav Ya Sosnovskikh. "Stereoselective addition of ethyl 3-morpholino(piperidino)-crotonates to 2-trihalomethyl-3-nitro-2H-chromenes. Synthesis of 4-acetonyl-3-nitrochromans." Chemistry of Heterocyclic Compounds 51, no. 5 (2015): 440–46. http://dx.doi.org/10.1007/s10593-015-1718-1.

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22

SHARMA, S., M. S. KHANNA, C. P. GARG, R. P. KAPOOR, A. KAPIL, and S. SHARMA. "ChemInform Abstract: Synthesis and Anticomplementary Activity of Ethyl(E)-3(4-(4-oxo-4H- benzopyran-6-yl)-5-methylthiazol-2-ylamino)crotonates, 6-(2- Acetoacetylamino-5-methylthiazol-4-yl)chromones and 6-(2,7-Dimethyl-5H- thiazolo(3,2-a)pyrimidin-5-one-3-." ChemInform 24, no. 41 (2010): no. http://dx.doi.org/10.1002/chin.199341193.

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23

Banerji, Avijit, Saugandha Dasgupta, Piyali Sengupta, Thierry Prange, and Alain Neumann. "1,3-Dipolar Cycloadditions. Part 7. Cycloaddition of C,N-Diarylnitrones to Ethyl Crotonate." ChemInform 35, no. 51 (2004). http://dx.doi.org/10.1002/chin.200451097.

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24

Liu, Gaofei, Lei Huang, and Jiazhang Lian. "Alcohol acyltransferases for the biosynthesis of esters." Biotechnology for Biofuels and Bioproducts 16, no. 1 (2023). http://dx.doi.org/10.1186/s13068-023-02343-x.

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AbstractEsters are widely used in food, energy, spices, chemical industry, etc., becoming an indispensable part of life. However, their production heavily relies on the fossil energy industry, which presents significant challenges associated with energy shortages and environmental pollution. Consequently, there is an urgent need to identify alternative green methods for ester production. One promising solution is biosynthesis, which offers sustainable and environmentally friendly processes. In ester biosynthesis, alcohol acyltransferases (AATs) catalyze the condensation of acyl-CoAs and alcohols to form esters, enabling the biosynthesis of nearly 100 different kinds of esters, such as ethyl acetate, hexyl acetate, ethyl crotonate, isoamyl acetate, and butyl butyrate. However, low catalytic efficiency and low selectivity of AATs represent the major bottlenecks for the biosynthesis of certain specific esters, which should be addressed with protein molecular engineering approaches before practical biotechnological applications. This review provides an overview of AAT enzymes, including their sequences, structures, active sites, catalytic mechanisms, and metabolic engineering applications. Furthermore, considering the critical role of AATs in determining the final ester products, the current research progresses of AAT modification using protein molecular engineering are also discussed. This review summarized the major challenges and prospects of AAT enzymes in ester biosynthesis.

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Levinger, Shlomo, Ranjeet Nair та Alfred Hassner. "The role of an aromatic group in remote chiral induction during conjugate addition of α-sulfonylallylic carbanions to ethyl crotonate". Beilstein Journal of Organic Chemistry 4 (23 вересня 2008). http://dx.doi.org/10.3762/bjoc.4.32.

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26

Abbiche, Khalid, Nivedita Acharjee, Mohammed Salah, et al. "Unveiling the mechanism and selectivity of [3+2] cycloaddition reactions of benzonitrile oxide to ethyl trans-cinnamate, ethyl crotonate and trans-2-penten-1-ol through DFT analysis." Journal of Molecular Modeling 26, no. 10 (2020). http://dx.doi.org/10.1007/s00894-020-04547-6.

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27

S, Sowmiya, R. Jasmine, Sherlin Rosita A, Bharathi V, and Keerthiga M. "In-silico Analysis of Phytocompounds Identified by GC-MS from Moringa oleifera Leaves of Kolli Hills at Namakkal Against Colorectal Cancer." International Journal of Life Science and Pharma Research, March 11, 2023, L38—L50. http://dx.doi.org/10.22376/ijlpr.2023.13.3.l38-l50.

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Plants have been used for medicinal purposes long before the prehistoric period. The use of plants and natural substances to cure a wide range of human ailments has become increasingly popular due to the population explosion, insufficient drug supply, high cost of treatments, adverse effects of various synthetic medications, and the emergence of drug resistance. Because of its potent healing properties, India views Moringa oleifera as a "mystical plant." These phytochemicals made by plants have the potential to take the place of antibiotics, antihelminthicides, and antivirals in the fight against a range of pathogenic diseases. The aim of this current study is to evaluate the M. oleifera leaf aqueous extract compounds against Colorectal cancer through In-silico analysis. The objective of this research is to analysis the phytocompounds present in the extract of Moringa oleifera from the Kolli Hills region, identify the biologically active compounds through GC-MS, and determine whether In-silico analysis reveals anticancer activity. The GC-MS analysis, which indicates 10 peaks of biomolecules such as Hexatriacontane, 2- Hexadecen-1-Ol, 3,7,11,15-Tetramethyl-, [R- [R*, R*-(E)], Neophytadiene, Docosane, Benzenepropanoic Acid, Alpha. -[(Trimethylsilyl)Oxy]-, Trimethylsilyl, Tetracosane, Succinic acid, epicotyl 3-methylbut-3-enyl ester , 2,3,4,5,6-Pentafluorobenzyl Crotonate , Acetic acid, 2-(9-phenylimino-10-acridanyl)- , ethyl ester , Butane, 1,1-diethoxy-3-methyl- . Docking studies with β-catenin revealed that Acetic acid, 2-(9-phenylimino-10-acridanyl)-ethyl ester, has minimum docking scores and high binding affinity against β-catenin of Human Colorectal cancer, indicating that M. oleifera from Kolli Hills region has a promising natural bioactive source and might be a valuable source for future anti-cancer therapy especially Colorectal cancer. The novelty of this study is that no report has yet been cited on the effectiveness of M. oleifera extracts obtained from the Kolli hills region as an anti-cancer agent against Colorectal cancer.

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Li, Dong, Chunran Zhou, Jia-Qi Li, et al. "Metabolomic analysis on the mechanism of nanoselenium alleviating cadmium stress and improving the pepper nutritional value." Journal of Nanobiotechnology 20, no. 1 (2022). http://dx.doi.org/10.1186/s12951-022-01739-5.

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AbstractSelenium (Se) maintains soil-plant homeostasis in the rhizosphere and regulates signaling molecules to mitigate cadmium (Cd) toxicity. However, there has been no systematic investigation of the effects of nano-selenium (nano-Se) on the regulation of non-target metabolites and nutritional components in pepper plants under Cd stress. This study investigated the effects of Cd-contaminated soil stress and nano-Se (1, 5, and 20 mg/L) on the metabolic mechanism, fruit nutritional quality, and volatile organic compounds (VOCs) composition of pepper plants. The screening of differential metabolites in roots and fruit showed that most were involved in amino acid metabolism and capsaicin production. Amino acids in roots (Pro, Trp, Arg, and Gln) and fruits (Phe, Glu, Pro, Arg, Trp, and Gln) were dramatically elevated by nano-Se biofortification. The expression of genes of the phenylpropane-branched fatty acid pathway (BCAT, Fat, AT3, HCT, and Kas) was induced by nano-Se (5 mg/L), increasing the levels of capsaicin (29.6%), nordihydrocapsaicin (44.2%), and dihydrocapsaicin (45.3%). VOCs (amyl alcohol, linalool oxide, E-2-heptaldehyde, 2-hexenal, ethyl crotonate, and 2-butanone) related to crop resistance and quality were markedly increased in correspondence with the nano-Se concentration. Therefore, nano-Se can improve the health of pepper plants by regulating the capsaicin metabolic pathway and modulating both amino acid and VOC contents. Graphical Abstract

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