119-36-8 Archives - Page 5 of 10 - Esters-buliding-blocks

Wu, Hualing’s team published research in Food Research International in 2019 | CAS: 119-36-8

Methyl Salicylate(cas: 119-36-8) has been used: as a component of clarifying solution for treating Mongolian gerbil cochlea intact for immunofluorescence analysis, as a plant elicitor to test its effect on reducing the whitefly population from tomato plants.Category: esters-buliding-blocks

In 2019,Food Research International included an article by Wu, Hualing; Huang, Wenjie; Chen, Zhongjian; Chen, Zhuang; Shi, Jingfang; Kong, Qian; Sun, Shili; Jiang, Xiaohui; Chen, Dong; Yan, Shijuan. Category: esters-buliding-blocks. The article was titled 《GC-MS-based metabolomic study reveals dynamic changes of chemical compositions during black tea processing》. The information in the text is summarized as follows:

The chem. composition of black tea during tea processing is in a state of flux. However, the dynamic changes of this sophisticated metabolic process are far from clear. GC-MS-based metabolomic analyses were performed to examine changes in volatile and non-volatile compounds throughout the five stages of tea processing. The results showed that the most striking differences were observed at the withering and rolling stages, during which 62 non-volatile and 47 volatile compounds were significantly changed. The levels of most monosaccharides decreased at the withering stage and increased in subsequent stages while di-saccharides decreased as the process progressed. Free amino acids increased sharply at the withering stage, and most kept increasing or remained stable afterwards. However, levels of catechin, epicatechin, epigallocatechin, and epigallocatechin gallate decreased after withering and remained at low levels afterwards. Among the 47 volatile compounds with altered levels, phenylpropanoids/benzenoids and carotenoid-derived volatiles, which contribute to the honey-like and rose-like fragrances and quality of Danxia2 tea, kept increasing during the processing, among them eight were newly produced. Furthermore, 19 volatiles with a grassy odor decreased during processing. This study provides a comprehensive profile of metabolic changes during black tea processing, which is potentially important for both quality control and improvement of the flavor of black teas. In the part of experimental materials, we found many familiar compounds, such as Methyl Salicylate(cas: 119-36-8Category: esters-buliding-blocks)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Liao, Xueli’s team published research in Food Research International in 2020 | CAS: 119-36-8

《Identification of key odorants responsible for cooked corn-like aroma of green teas made by tea cultivar Zhonghuang 1》 was published in Food Research International in 2020. These research results belong to Liao, Xueli; Yan, Jingna; Wang, Bei; Meng, Qing; Zhang, Longyun; Tong, Huarong. Reference of Methyl Salicylate The article mentions the following:

Fangping green tea (FPGT) produced by Zhonghuang 1 (C. sinensis var. sinensis cv. Zhonghuang 1), a new tea variety, has a classical cooked corn-like aroma, which is completely different from the green tea aroma. In order to illustrate the aroma characteristics of the green tea, the volatiles of FPGT was analyzed with gas chromatog.-mass spectrometry (GC-MS) and gas chromatog.-olfactometry (GC-O). The results showed that odor activity value (OAV) of di-Me sulfide (DMS) was 1195.21 and the odor intensity about DMS was 6.2 in FPGT. Aroma recombination experiment also confirmed the important contribution of DMS to cooked corn-like aroma. Aroma character impact (ACI) values of DMS in tea processed by Zhonghuang 1 and Fudingdabai were 72.01% and 37.86%, resp. This indicated that the high proportion of DMS was the dominant character of green tea with cooked corn-like aroma. In addition, the S-methylmethionine (SMM) content in fresh leaves of Zhonghuang 1 (0.21 mg/g) was significantly higher than that of Fudingdabai (0.16 mg/g), which was an important reason for high DMS content. In the experimental materials used by the author, we found Methyl Salicylate(cas: 119-36-8Reference of Methyl Salicylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ling, Fengzi’s team published research in Journal of Chemical Physics in 2019 | CAS: 119-36-8

The author of 《Femtosecond real-time probing of the excited-state intramolecular proton transfer reaction in methyl salicylate》 were Ling, Fengzi; Liu, Dejun; Li, Shuai; Li, Wei; Zhang, Bing; Wang, Pengfei. And the article was published in Journal of Chemical Physics in 2019. Related Products of 119-36-8 The author mentioned the following in the article:

The excited-state intramol. proton transfer (ESIPT) process and subsequent electronic relaxation dynamics in Me salicylate have been investigated using femtosecond time-resolved ion yield spectroscopy combined with time-resolved photoelectron imaging. Excitation with a tunable pump pulse populates the keto tautomer in the first excited electronic state S1(ππ*). As a hydrogen atom transfers from the phenolic group to the carbonyl group within 100 fs, the mol. geometry changes gradually, leading to a variation in the electronic photoionization channel. By virtue of the accidental resonance with some intermediate Rydberg states, the time-dependent photoelectron spectra provide a direct mapping of the ESIPT reaction from the initially populated keto tautomer to the proton-transferred enol tautomer. Subsequently, the population around the enol configuration undergoes intramol. vibrational redistribution on a subpicosecond time scale, followed by internal conversion to the ground state with a wavelength-dependent lifetime in the picosecond range. Furthermore, the excitation energies of several Rydberg states in Me salicylate are determined exptl. (c) 2019 American Institute of Physics. The experimental part of the paper was very detailed, including the reaction process of Methyl Salicylate(cas: 119-36-8Related Products of 119-36-8)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Li, Qin’s team published research in LWT–Food Science and Technology in 2020 | CAS: 119-36-8

《Characterization of the key aroma compounds and microorganisms during the manufacturing process of Fu brick tea》 was written by Li, Qin; Li, Yongdi; Luo, Yu; Xiao, Lizheng; Wang, Kunbo; Huang, Jianan; Liu, Zhonghua. Category: esters-buliding-blocks And the article was included in LWT–Food Science and Technology in 2020. The article conveys some information:

Aroma is one of the most important criteria of tea quality, but the dynamic changes of aroma profile during the manufacturing process, and the chem. basis of characteristic aroma in Fu brick tea remain largely unknown. In this study, a total of 72 volatiles were identified and quantified, only the esters content increased sharply during the process. Sensory quant. description anal. revealed that the ‘green’ attribute was dominated in the early processing stage, and the ‘fungal flower’, ‘flower’, ‘mint’ and ‘woody’ attributes became the major contributors to the aroma character in the later processing stages. Indicated by partial least-squares anal., the linalool, acetophenone, and Me salicylate were identified as key volatiles contributors to the ‘fungal flower’, ‘flower’, and ‘mint’ attributes, the cedrol contributed to ‘woody’ attribute, and twelve alcs. and aldehydes were related to ‘green’ attribute. Besides, bidirectional orthogonal partial least squares anal. revealed that six fungal genera Aspergillus, Candida, Debaryomyces, Penicillium, Unclassified_k_Fungi, Unclassified_o_Saccharomycetales were identified as core functional microorganisms link to the metabolism of volatiles. Taken together, these findings provide new insights into Fu brick tea aroma profile variation and increase our understanding of the formation mechanism of the characteristic aroma during the manufacturing process. The experimental process involved the reaction of Methyl Salicylate(cas: 119-36-8Category: esters-buliding-blocks)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Lohonyai, Zsofia’s team published research in Pest Management Science in 2019 | CAS: 119-36-8

Methyl Salicylate(cas: 119-36-8) is a natural herbivore-induced plant volatile. It is a naturally occurring product in trees, legumes, exotic plants, vegetables, berries, and the primary constituent of the oil of wintergreen.Methyl Salicylate is produced from salicylic acid.Safety of Methyl Salicylate

Safety of Methyl SalicylateIn 2019 ,《Benzaldehyde: an alfalfa-related compound for the spring attraction of the pest weevil Sitona humeralis (Coleoptera: Curculionidae)》 was published in Pest Management Science. The article was written by Lohonyai, Zsofia; Vuts, Jozsef; Karpati, Zsolt; Koczor, Sandor; Domingue, Michael J.; Fail, Jozsef; Birkett, Michael A.; Toth, Miklos; Imrei, Zoltan. The article contains the following contents:

Timely detection of migrating adult weevils is needed to determine when deployment of control measures becomes necessary. With the aim of developing plant volatile-based lures for Sitona spp. detection, we investigated the responses of S. humeralis to host plant-related aromatic compounds RESULTS : In olfactometer studies, both male and female S. humeralis responded pos. to the odor of alfalfa flowers, a source of aromatic volatiles. In single sensillum recordings, basiconic sensilla located on the third and fourth terminal segments of the antennal club of both sexes were found to respond to benzaldehyde at doses of 10-5 and 10-4 g, suggesting that the weevil is able to detect this compound at the peripheral sensory level. In field studies, S. humeralis was attracted to benzaldehyde in the spring, but not in the autumn. Benzaldehyde, as described in this study, may be a suitable candidate for the development of monitoring tools for S. humeralis. In addition to this study using Methyl Salicylate, there are many other studies that have used Methyl Salicylate(cas: 119-36-8Safety of Methyl Salicylate) was used in this study.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kang, Suyoung’s team published research in Food Research International in 2019 | CAS: 119-36-8

The author of 《Identification and quantification of key odorants in the world’s four most famous black teas》 were Kang, Suyoung; Yan, Han; Zhu, Yin; Liu, Xu; Lv, Hai-Peng; Zhang, Yue; Dai, Wei-Dong; Guo, Li; Tan, Jun-Feng; Peng, Qun-Hua; Lin, Zhi. And the article was published in Food Research International in 2019. Related Products of 119-36-8 The author mentioned the following in the article:

Keemun, Assam, Darjeeling and Ceylon black teas are honored as the world’s four most famous black teas, and their excellent aroma qualities are well received by people around the world. In this study, aroma components in these four types of teas were analyzed by comprehensive two-dimensional gas chromatog. time-of-flight mass spectrometry (GC × GC-TOFMS) and gas chromatog.-olfactometry (GC-O) technologies. A total of 42 aroma-active compounds were ultimately identified, especially benzeneacetaldehyde, geraniol, (Z)-3-hexen-1-yl hexanoate, trans-β-ionone, cis-linalool oxide (pyranoid), hotrienol, and Me salicylate presented the strongest aroma strengths with pleasant scents in all tested teas. The quantification results indicated that 19 compounds including (Z)-3-hexenol, 1-octen-3-ol, linalool, phenylethyl alc., hexanal, benzeneacetaldehyde, limonene, heptanoic acid, (Z)-3-hexen-1-ol, acetate, benzyl alc., trans-linalool oxide (furanoid), hotrienol, 1-octen-3-one, 2-nonanone, (E)-2-octenal, nonanal, β-myrcene, 2-pentylfuran, and methylpyrazine were identified as the key compounds with odor activity values (OAVs) higher than 1.0 in the world’s four most famous black teas. Notably, the comparison of GC-O and OAV calculation results showed that Me salicylate (Ceylon), (E)-2-octenal (Assam), benzeneacetaldehyde (Keemun) and linalool and trans-linalool oxide (furanoid) (Darjeeling) might be the most definitive odorants in the corresponding tea categories. In the part of experimental materials, we found many familiar compounds, such as Methyl Salicylate(cas: 119-36-8Related Products of 119-36-8)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Wang, Meng-Qi’s team published research in Food Research International in 2020 | CAS: 119-36-8

《Characterization of the key aroma compounds in Longjing tea using stir bar sorptive extraction (SBSE) combined with gas chromatography-mass spectrometry (GC-MS), gas chromatography-olfactometry (GC-O), odor activity value (OAV), and aroma recombination》 was published in Food Research International in 2020. These research results belong to Wang, Meng-Qi; Ma, Wan-Jun; Shi, Jiang; Zhu, Yin; Lin, Zhi; Lv, Hai-Peng. Safety of Methyl Salicylate The article mentions the following:

Longjing tea is the most famous premium green tea, and is regarded as the national tea in China, with its attractive aroma contributing as a prime factor for its general acceptability; however, its key aroma compounds are essentially unknown. In the present study, volatile compounds from Longjing tea were extracted and examined using stir bar sorptive extraction (SBSE) combined with gas chromatog.-mass spectrometry (GC-MS). Data obtained from the present study revealed that 151 volatile compounds from 16 different chem. classes were identified by GC-MS anal. Enols (8096 μg/kg), alkanes (6744 μg/kg), aldehydes (6442 μg/kg), and esters (6161 μg/kg) were the four major chem. classes and accounted for 54% of the total content of volatile compounds Geraniol (6736 μg/kg) was the most abundant volatile compound in Longjing tea, followed by hexanal (1876 μg/kg) and β-ionone (1837 μg/kg). Moreover, 14 volatile compounds were distinguished as the key aroma compounds of Longjing tea based on gas chromatog.-olfactometry (GC-O) anal., odor activity value (OAV) calculations, and a preliminary aroma recombination experiment, including 2-Me butyraldehyde, DMSO, heptanal, benzaldehyde, 1-octen-3-ol, (E, E)-2,4-heptadienal, benzeneacetaldehyde, linalool oxide I, (E, E)-3,5-octadien-2-one, linalool, nonanal, Me salicylate, geraniol, and β-ionone. This is the first comprehensive report describing the aroma characterizations and the key aroma compounds in Longjing tea using SBSE/GC-MS. The findings from this study contribute to the scientific elucidation of the chem. basis for the aromatic qualities of Longjing tea. In the experimental materials used by the author, we found Methyl Salicylate(cas: 119-36-8Safety of Methyl Salicylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Manzoor, Muhammad Aamir’s team published research in BMC Plant Biology in 2021 | CAS: 119-36-8

Manzoor, Muhammad Aamir; Manzoor, Muhammad Mudassar; Li, Guohui; Abdullah, Muhammad; Han, Wang; Han, Wenlong; Shakoor, Awais; Riaz, Muhammad Waheed; Rehman, Shamsur; Cai, Yongping published an article in 2021. The article was titled 《Genome-wide identification and characterization of bZIP transcription factors and their expression profile under abiotic stresses in Chinese pear (Pyrus bretschneideri)》, and you may find the article in BMC Plant Biology.HPLC of Formula: 119-36-8 The information in the text is summarized as follows:

In plants, basic leucine zipper transcription factors (TFs) play important roles in multiple biol. processes such as anthesis, fruit growth & development and stress responses. However, systematic investigation and characterization of bZIP-TFs remain unclear in Chinese white pear. Chinese white pear is a fruit crop that has important nutritional and medicinal values. In this study, 62 bZIP genes were comprehensively identified from Chinese Pear, and 54 genes were distributed among 17 chromosomes. Frequent whole-genome duplication (WGD) and dispersed duplication (DSD) were the major driving forces underlying the bZIP gene family in Chinese white pear. bZIP-TFs are classified into 13 subfamilies according to the phylogenetic tree. Subsequently, purifying selection plays an important role in the evolution process of PbbZIPs. Synteny anal. of bZIP genes revealed that 196 orthologous gene pairs were identified between Pyrus bretschneideri, Fragaria vesca, Prunus mume, and Prunus persica. Moreover, cis-elements that respond to various stresses and hormones were found on the promoter regions of PbbZIP, which were induced by stimuli. Gene structure (intron/exon) and different compositions of motifs revealed that functional divergence among subfamilies. Expression pattern of PbbZIP genes differential expressed under hormonal treatment abscisic acid, salicylic acid, and Me jasmonate in pear fruits by real-time qRT-PCR. Collectively, a systematic anal. of gene structure, motif composition, subcellular localization, synteny anal., and calculation of synonymous (Ks) and non-synonymous (Ka) was performed in Chinese white pear. Sixty-two bZIP-TFs in Chinese pear were identified, and their expression profiles were comprehensively analyzed under ABA, SA, and MeJa hormones, which respond to multiple abiotic stresses and fruit growth and development. PbbZIP gene occurred through Whole-genome duplication and dispersed duplication events. These results provide a basic framework for further elucidating the biol. function characterizations under multiple developmental stages and abiotic stress responses. In the experimental materials used by the author, we found Methyl Salicylate(cas: 119-36-8HPLC of Formula: 119-36-8)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Perez-Aparicio, Alicia’s team published research in Scientific Reports in 2022 | CAS: 119-36-8

In 2022,Perez-Aparicio, Alicia; Ammagarahalli, Byrappa; Gemeno, Cesar published an article in Scientific Reports. The title of the article was 《A closer look at sex pheromone autodetection in the Oriental fruit moth》.Application In Synthesis of Methyl Salicylate The author mentioned the following in the article:

Female moths emit sex pheromone to attracts males, and although they are not attracted to their own sex pheromone, they appear to detect it as it affects their behavior. In order to elucidate the mechanism of pheromone “”autodetection”” we compared responses of olfactory receptor neurons (ORNs) of male and female Grapholita molesta, a species with reported pheromone autodetection. Two concentrations of the major (Z8-12:Ac) and minor (E8-12:Ac) sex pheromone components, a plant-volatile blend containing Me salicylate, terpinyl acetate and (E)-β-farnesene, and the male-produced hair-pencil (i.e., courtship) pheromone (Et trans-cinnamate) were tested in 45 male and 305 female ORNs. Hierarchical cluster anal. showed radically different peripheral olfactory systems between sexes that could be linked to their specific roles. In males 63% of the ORNs were tuned specifically to the major or minor female sex pheromone components, and 4% to the plant volatile blend, while the remaining 33% showed unspecific responses to the stimulus panel. In females 3% of the ORNs were specifically tuned to the male hair-pencil pheromone, 6% to the plant volatile blend, 91% were unspecific, and no ORN was tuned their own sex pheromone components. The lack of sex pheromone-specific ORNs in females suggests that they are not able to discriminate pheromone blends, and thus pheromone autodetection is unlikely in this species. We discuss our results in the context of the methodol. limitations inherent to odor stimulation studies. The experimental part of the paper was very detailed, including the reaction process of Methyl Salicylate(cas: 119-36-8Application In Synthesis of Methyl Salicylate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Khadka, Roshan’s team published research in Biosensors & Bioelectronics in 2019 | CAS: 119-36-8

In 2019,Biosensors & Bioelectronics included an article by Khadka, Roshan; Aydemir, Nihan; Carraher, Colm; Hamiaux, Cyril; Colbert, Damon; Cheema, Jamal; Malmstrom, Jenny; Kralicek, Andrew; Travas-Sejdic, Jadranka. Related Products of 119-36-8. The article was titled 《An ultrasensitive electrochemical impedance-based biosensor using insect odorant receptors to detect odorants》. The information in the text is summarized as follows:

Herein, we present that insect odorant receptors reconstituted into the lipid bilayers of liposomes can be successfully immobilized onto a gold surface and selectively and sensitively detect odorant mols. The odorant receptors (OrXs) Or10a, Or22a, and Or71a from the common fruit fly, Drosophila melanogaster, were recombinantly expressed, purified and integrated into nano-liposomes (100-200 nm). These liposomes were covalently attached to the self-assembled monolayers (SAMs) of a 6-mercaptohexanoic acid (MHA)-modified gold surface. X-ray Photo Electron Spectroscopy (XPS) and Quartz Crystal Microbalance with Dissipation (QCM-D) measurements confirmed the successful modification of the gold surface and immobilization of liposomes. Atomic Force Microscopy (AFM) revealed that the liposomes were covalently attached to the surface without any disruption of vesicles. The liposomes tethered to the gold sensor surface were then treated with a range of known ligands of various concentrations We demonstrated by Electrochem. Impedance Spectroscopy (EIS) that an OrX/liposome EIS sensor can sensitively and selectively detect its known ligand to femtomolar concentrations by detecting a change in elec. signal upon binding. Our study is the first step towards using purified insect odorant receptors alone in biosensors to enable the development of novel ultrasensitive volatile sensors for medical diagnostic, air quality, food safety and border security applications. After reading the article, we found that the author used Methyl Salicylate(cas: 119-36-8Related Products of 119-36-8)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics