Tag: M.W=150-200

Tian, Qirui published the artcileIn situ complex coacervation supported by self-coated polydopamine interlayer on uniform-sized essential oils droplet, Related Products of esters-buliding-blocks, the main research area is coacervation polydopamine coated essential oils droplet.

Essential oils (EOs) are common additives in daily products by virtue of their olfactory, physicochem., and biol. characteristics. However, EOs are physicochem. unstable and susceptible to degradation or loss, leading to limited shelf life and inadequate efficacy. Herein we propose a new bi-layered encapsulation structure in combination with complex coacervation and self-coating of polydopamine (PDA) on membrane emulsified mono-dispersion of EOs droplets. A mono-dispersed EOs emulsion stabilized by nonionic surfactants was produced by membrane emulsification, wherein the EOs droplets were applied as soft templates to deposit a superficial PDA layer. Under alk. conditions, gelatin (GE) was bound to the PDA layer and further applied as in situ coacervation sites for gum Arabic (GA). Structural identification and morphol. observation proved the successful preparation of bi-layered EOs capsules. Compared with traditional complex coacervation strategies, current novel bi-layered capsules showed significantly improved structural stability, thermal stability, providing better protection of EOs with sustained release properties. Moreover, the encapsulation efficiency and loading content were both proved higher for the bi-layered system. The first report on PDA-coating onto surfactants-absorbed macroemulsion droplets also provides an in-depth insight into applying PDA as versatile intermediate functional biomaterials.

Journal of Colloid and Interface Science published new progress about Bilayer films. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Related Products of esters-buliding-blocks.

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

Chen, Jianhua published the artcileBurkholderia cenocepacia ETR-B22 volatile organic compounds suppress postharvest grey mold infection and maintain aroma quality of tomato fruit, SDS of cas: 140-11-4, the main research area is Burkholderia cenocepacia volatile organic suppress postharvest gray mold infection.

Microbial volatile organic compounds (VOCs) are effective biofumigants for controlling postharvest fruit decay. We evaluated the postharvest biofumigation efficacy of the VOCs produced by Burkholderia cenocepacia ETR-B22 for alleviating tomato fruit gray mold and its impact on the fruit quality. The results demonstrated that the VOCs inhibited the hyphal growth and spore germination of pathogen Botrytis cinerea and caused hyphal cell death. Postharvest biofumigation with VOCs significantly decreased disease incidence, disease index, and weight loss of tomato fruit. The antifungal efficacy of the VOCs was affected by growth media substrates, inoculation volume, and concentration Among the analyzed VOC components, di-Me trisulfide was most effective in inhibiting B. cinerea. Biofumigation with VOCs produced by ETR-B22 delayed the deterioration of the nutrition quality of tomato fruit. Metabolomics anal. revealed that the aromatic metabolite profile of postharvest tomato fruit was well-maintained after fumigation with ETR-B22 VOCs. Therefore, B. cenocepacia ETR-B22 VOCs could be used as useful biofumigants for extending postharvest tomato fruit shelf life and controlling gray mold disease.

LWT–Food Science and Technology published new progress about Biofungicides. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, SDS of cas: 140-11-4.

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

Hamad, Younis K. published the artcileActivity of plant extracts/essential oils against three plant pathogenic fungi and mosquito larvae: GC/MS analysis of bioactive compounds, Synthetic Route of 140-11-4, the main research area is Fusarium Tectona Rhizoctonia Culex essential oil larvicidal antifungal.

Certain natural products extracted from different parts of medicinal and aromatic plants were examined for their antifungal activity against three plant pathogenic fungi, Fusarium oxysporum, Rhizoctonia solani, and Alternaria solani, and insecticidal activity against mosquito larvae (Culex pipiens). Acetone extract of Tectona grandis showed the highest antifungal activity against R. solani and A. solani with EC50 values of 118 and 294μg/mL, resp. The highest larvicidal activity was displayed by the essential oils of Ocimum basilicum and Eucalyptus gomphocephala with LC50 value of 22, and 30 mg/L, resp. By gas chromatog.- mass spectrometry (GC/MS) anal. 3-allylguaiacol (65.8%) and eugenol acetate (46.6%) were the main compounds in Syzygium aromaticum methanolic extract and essential oil, resp. The main compound in T. grandis acetone extract was cyclohexylpentyl oxalate (8.7%); its water extract contained (E)-4,4-dimethyl-2-pentene (51.1%); E. gomphocephala branch oil contained p-cymene (28.8%); Euphorbia paralias leaf extract contained 1βH-romneine (26.3%); the seed extract contained α-linolenic acid, TMS (15.2%); Punica granatum extract contained furfural (32.1%); and O. basilicum essential oil contained estragole (65.9%). Thus, extracts from the tested plants can be used as natural biofungicides to manage diseases caused by F. oxysporum, R. solani, and A. solani. Addnl., these extracts show potential la rvicide activities against mosquito larvae.

BioResources published new progress about Biofungicides. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Synthetic Route of 140-11-4.

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

Yin, Hanliang published the artcileStudy on the potential contribution of bacterial community on the volatile flavor of Yongfeng chilli paste, Application In Synthesis of 123-29-5, the main research area is Yongfeng chilli paste volatile flavor bacterial community.

The study aimed to explore the contribution of the microbial community on flavor formation by measuring physicochem. properties, volatile compounds composition and bacterial community of Yongfeng chilli paste. A similar amino acid nitrogen level and different pH, total acid and salt content were observed in five brands of Yongfeng chilli paste. A total of 106 volatile compounds were identified, wherein, Et palmitate, Et trans-4-decenoate, phenylethyl alc. were the common volatile compounds with high content in all samples. Addnl., Oxyphotobacteria-unclassified, Mitochondria-unclassified, Pediococcus, Bacillus, Lactobacillus and Weissella were the dominant genera. Lactobacillus was related to the production of some alcs. and terpenes. Whereas, Bacillus, Pediococcus and Weissella, which showed higher salt tolerance, could affect the formation of esters, such as Et salicylate, Et lactate. Thus, this study provided a basis for further research on the mechanism of flavor formation and some guidance for the improvements of the quality of traditional fermented chilli paste.

International Journal of Food Science and Technology published new progress about Acinetobacter. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Application In Synthesis of 123-29-5.

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

Sukkanon, Chutipong published the artcileCananga odorata (Magnoliales: Annonaceae) essential oil produces significant avoidance behavior in mosquitoes, Quality Control of 140-11-4, the main research area is Cananga essential oil repellent Culex Aedes Anopheles; Aedes ; Culex ; excito-repellency ; Anopheles; repellent.

Essential oil of Cananga odorata Hook. F. & Tomson is a source of insect repellent, but contact irritancy and noncontact repellency actions that stimulate insect’s avoidance behavior (escape away from chem. source after direct phys. contact or without making phys. contact, resp.) have not been investigated. Therefore, an excito-repellency test chamber was used for measuring avoidance behavior of four insectary-reared mosquito species (Diptera: Culicidae) that escape from esposure to four concentrations (0.5, 1.0, 2.5, and 5.0% volume/volume) of C. odorata oil. The oil strongly repelled both Culex quinquefasciatus Say (85-97% escape) and Anopheles minimus Theobald (97-99%) at high concentrations (2.5-5.0%). For Anopheles dirus Peyton & Harrison and Aedes aegypti (L.), highest repellency (64 and 39% escape, resp.) was demonstrated at 2.5% concentration For contact irritancy, the oil produced relatively high percent escape found in Cx. quinquefasciatus (90-100% escape) and An. minimus (83-100%). Whereas moderate contact irritancy was observed against An. dirus (40-50% escape) and Ae. aegypti (51-59%). The percent escape was then adjusted with repellency to estimate the effect of contact irritancy alone. We found that highest contact irritancy was presented at 0.5% concentration against An. minimus (67% escape). Knockdown and toxic actions were only found in Anopheles mosquitoes at 5.0% concentration The results revealed that An. minimus and Cx. quinquefasciatus were more prone to be repelled by C. odorata oil. Detailed anal. of oil identified primary compounds as Me benzoate (14.6%), α-gurjunene (12.8%), p-methyl-anisole (11.3%), and benzyl acetate (9.9%). Further investigations are needed to assess excito-repellency actions of these compounds alone or in combination.

Journal of Medical Entomology published new progress about Aedes aegypti. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Quality Control of 140-11-4.

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

Turan, Emre published the artcileBlack garlic as a substitute for fresh garlic to reduce off-flavor and enhance consumer acceptance and bioactive properties in cemen paste, Computed Properties of 123-29-5, the main research area is black garlic flavor bioactive property cemen paste.

The effects of black garlic aged at different periods as a substitute for fresh garlic (FG) on the overall quality of pastirma cemen paste were evaluated during 90 days of storage. The addition of black garlic increased the phenolic content and antioxidant activities of the cemen pastes, and decreased the firmness, stickiness, pH and color values compared to CON (Control). Total aerobic mesophilic bacteria counts of cemen pastes containing black garlic aged for �1 days were similar to those of CON, but the counts of yeast and molds of black garlic added-groups were higher than CON during storage. Incorporation of black garlic to cemen paste increased the content of volatile compounds such as esters and terpenes with fruity and sweet notes, while the concentration of sulfur compounds decreased. In this way, the off-flavor of cemen paste was eliminated and its sensory acceptability improved. Considering the overall data, the best results were obtained in the CP3 group produced with black garlic aged for 21 days. Consequently, black garlic can be used as a substitute for FG to improve the consumer acceptance and bioactive properties of cemen paste. Novelty impact statement : Some consumers avoid pastirma consumption because of the unpleasant off-flavor from cemen paste. Overcoming this problem is very important for both the producer and the consumer. The results of this study showed that black garlic improved the sensory acceptability and bioactive properties of cemen paste by eliminating the unpleasant smell of fresh garlic and increasing the antioxidant capacity. In conclusion, the use of cemen paste with black garlic in pastirma production has promising potential to enhance consumer acceptance and retard oxidative reactions.

Journal of Food Processing and Preservation published new progress about Allium nigrum. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Computed Properties of 123-29-5.

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

Sk, Ramiz Islam published the artcileLipidomic analysis of cancer cell and tumor tissues, Computed Properties of 110-42-9, the main research area is lipidomic analysis cancer cell tumor tissue; Cancer; Fatty acid methyl ester; GC-MS; Lipidomics; RP-UPLC-ESIMS.

Due to their role in cellular structure, energetics, and signaling, characterization of changes in cellular and extracellular lipid composition is of key importance to understand cancer biol. In addition, several mass spectrometry-based profiling as well as imaging studies have indicated that lipid mols. may be useful to augment existing biochem. and histopathol. methods for diagnosis, staging, and prognosis of cancer. Therefore, anal. of lipidomic changes associated with cancer cells and tumor tissues can be useful for both fundamental and translational studies. Here, we provide a high-throughput single-extraction based method that can be used for simultaneous lipidomic and metabolomic anal. of cancer cells or healthy or tumor tissue samples. In this chapter, a modified Bligh-Dyer method is described for extraction of lipids followed by anal. of fatty acid composition by gas chromatog.-mass spectrometry (GC-MS) or untargeted lipidomics using electrospray ionization mass spectrometry (ESIMS) coupled with reversephase (RP) ultraperformance liquid chromatog. (UPLC) followed by multivariate data anal. to identify features of interest.

Methods in Molecular Biology (New York, NY, United States) published new progress about Animal tissue. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Computed Properties of 110-42-9.

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

Sk, Ramiz Islam published the artcileLipidomic analysis of cancer cell and tumor tissues, HPLC of Formula: 111-11-5, the main research area is lipidomic analysis cancer cell tumor tissue; Cancer; Fatty acid methyl ester; GC-MS; Lipidomics; RP-UPLC-ESIMS.

Due to their role in cellular structure, energetics, and signaling, characterization of changes in cellular and extracellular lipid composition is of key importance to understand cancer biol. In addition, several mass spectrometry-based profiling as well as imaging studies have indicated that lipid mols. may be useful to augment existing biochem. and histopathol. methods for diagnosis, staging, and prognosis of cancer. Therefore, anal. of lipidomic changes associated with cancer cells and tumor tissues can be useful for both fundamental and translational studies. Here, we provide a high-throughput single-extraction based method that can be used for simultaneous lipidomic and metabolomic anal. of cancer cells or healthy or tumor tissue samples. In this chapter, a modified Bligh-Dyer method is described for extraction of lipids followed by anal. of fatty acid composition by gas chromatog.-mass spectrometry (GC-MS) or untargeted lipidomics using electrospray ionization mass spectrometry (ESIMS) coupled with reversephase (RP) ultraperformance liquid chromatog. (UPLC) followed by multivariate data anal. to identify features of interest.

Methods in Molecular Biology (New York, NY, United States) published new progress about Animal tissue. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, HPLC of Formula: 111-11-5.

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

Zimmermann, Lisa published the artcileBenchmarking the in Vitro Toxicity and Chemical Composition of Plastic Consumer Products, SDS of cas: 111-11-5, the main research area is toxicity chem composition plastic consumer product.

Plastics are known sources of chem. exposure and few, prominent plastic-associated chems., such as bisphenol A and phthalates, have been thoroughly studied. However, a comprehensive characterization of the complex chem. mixtures present in plastics is missing. In this study, we benchmark plastic consumer products, covering eight major polymer types, according to their toxicol. and chem. signatures using in vitro bioassays and non-target high resolution mass spectrometry. Most (74 %) of the 34 plastic extracts contained chems. triggering at least one endpoint, including baseline toxicity (62 %), oxidative stress (41 %), cytotoxicity (32 %), estrogenicity (12 %) and antiandrogenicity (27 %). In total, we detected 1411 features, tentatively identified 213, including monomers, additives and non-intentionally added substances, and prioritized 25 chems. Extracts of polyvinyl chloride (PVC) and polyurethane (PUR) induced the highest toxicity whereas polyethylene terephthalate (PET) and high-d. polyethylene (HDPE) caused no or low toxicity. High baseline toxicity was detected in all “”bioplastics”” made of polylactic acid (PLA). The toxicities of low-d. polyethylene (LDPE), polystyrene (PS) and polypropylene (PP) varied. Our study demonstrates that consumer plastics contain compounds that are toxic in vitro but remain largely unidentified. Since the risk of unknown compounds cannot be assessed, this poses a challenge to manufacturers, public health authorities and researchers alike. However, we also demonstrate that products not inducing toxicity are already on the market.

Environmental Science & Technology published new progress about Antiandrogens. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, SDS of cas: 111-11-5.

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

Senaweera, Sameera published the artcileDecarboxylative Acetoxylation of Aliphatic Carboxylic Acids, Synthetic Route of 140-11-4, the main research area is photocatalytic decarboxylative acetoxylation aliphatic carboxylic acid copper acetate.

Organic mols. bearing acetoxy moieties are important functionalities in natural products, drugs, and agricultural chems. Synthesis of such mols. via transition metal-catalyzed C-O bond formation can be achieved in the presence of a carefully chosen directing group to alleviate the challenges associated with regioselectivity. An alternative approach is to use ubiquitous carboxylic acids as starting materials and perform a decarboxylative coupling. Herein, we report conditions for a photocatalytic decarboxylative C-O bond formation reaction that provides rapid and facile access to the corresponding acetoxylated products. Mechanistic investigations suggest that the reaction operates via oxidation of the carboxylate followed by rapid decarboxylation and oxidation by Cu(OAc)2.

Journal of Organic Chemistry published new progress about Acetoxylation. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Synthetic Route of 140-11-4.

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