Category: esters-buliding-blocks

Munoz-Redondo, Jose Manuel published the artcileImpact of Sequential Inoculation with the Non-Saccharomyces T. delbrueckii and M. pulcherrima Combined with Saccharomyces cerevisiae Strains on Chemicals and Sensory Profile of Rosé Wines, Application of Methyl decanoate, the main research area is Saccharomyces Torulaspora Metschnikowia sensory volatile rose wine; data fusion; esters; multivariate analysis; non-Saccharomyces; rosé wines; sensory; sequential inoculation; yeasts.

Controlled inoculations of non-Saccharomyces yeasts are becoming increasingly used to produce high-quality wines due to their enol. potential. In this study, we evaluated the impact of sequential inoculation with the com. non-Saccharomyces yeasts (Torulaspora delbrueckii and Metschnikowia pulcherrima) in combination with Saccharomyces cerevisiae on the chem. and sensory profile of rosé wines. Sequential inoculation with T. delbrueckii produced wines with an overall reduction in esters, mainly explained by the lower concentrations of Et esters of medium-chain fatty acids and isoamyl acetate. The lower ester concentrations of these wines were related to a reduction in fruity descriptors. An increase was observed, however, in other minor esters such as cinnamates and Et esters of branched acids. Zinc, Et isobutyrate, and Et dihydrocinnamate were selected as potential markers for this fermentation strategy. Sequential inoculation with M. pulcherrima resulted in rosé wines with an enhanced ester profile, reduced acetaldehyde, and increased anthocyans and tannins. Compared to the control wines fermented with S. cerevisiae, the changes observed in these wines were far subtler, especially for the volatile profile, sensory characteristics, and color parameters, with iso-Bu hexanoate and isoamyl butyrate being selected as potential markers.

Journal of Agricultural and Food Chemistry published new progress about Anthocyanins Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Application of Methyl decanoate.

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

Munoz-Redondo, Jose Manuel published the artcileImpact of Sequential Inoculation with the Non-Saccharomyces T. delbrueckii and M. pulcherrima Combined with Saccharomyces cerevisiae Strains on Chemicals and Sensory Profile of Rosé Wines, Application In Synthesis of 111-11-5, the main research area is Saccharomyces Torulaspora Metschnikowia sensory volatile rose wine; data fusion; esters; multivariate analysis; non-Saccharomyces; rosé wines; sensory; sequential inoculation; yeasts.

Controlled inoculations of non-Saccharomyces yeasts are becoming increasingly used to produce high-quality wines due to their enol. potential. In this study, we evaluated the impact of sequential inoculation with the com. non-Saccharomyces yeasts (Torulaspora delbrueckii and Metschnikowia pulcherrima) in combination with Saccharomyces cerevisiae on the chem. and sensory profile of rosé wines. Sequential inoculation with T. delbrueckii produced wines with an overall reduction in esters, mainly explained by the lower concentrations of Et esters of medium-chain fatty acids and isoamyl acetate. The lower ester concentrations of these wines were related to a reduction in fruity descriptors. An increase was observed, however, in other minor esters such as cinnamates and Et esters of branched acids. Zinc, Et isobutyrate, and Et dihydrocinnamate were selected as potential markers for this fermentation strategy. Sequential inoculation with M. pulcherrima resulted in rosé wines with an enhanced ester profile, reduced acetaldehyde, and increased anthocyans and tannins. Compared to the control wines fermented with S. cerevisiae, the changes observed in these wines were far subtler, especially for the volatile profile, sensory characteristics, and color parameters, with iso-Bu hexanoate and isoamyl butyrate being selected as potential markers.

Journal of Agricultural and Food Chemistry published new progress about Anthocyanins Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application In Synthesis of 111-11-5.

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

Munoz-Redondo, Jose Manuel published the artcileImpact of Sequential Inoculation with the Non-Saccharomyces T. delbrueckii and M. pulcherrima Combined with Saccharomyces cerevisiae Strains on Chemicals and Sensory Profile of Rosé Wines, Synthetic Route of 123-29-5, the main research area is Saccharomyces Torulaspora Metschnikowia sensory volatile rose wine; data fusion; esters; multivariate analysis; non-Saccharomyces; rosé wines; sensory; sequential inoculation; yeasts.

Controlled inoculations of non-Saccharomyces yeasts are becoming increasingly used to produce high-quality wines due to their enol. potential. In this study, we evaluated the impact of sequential inoculation with the com. non-Saccharomyces yeasts (Torulaspora delbrueckii and Metschnikowia pulcherrima) in combination with Saccharomyces cerevisiae on the chem. and sensory profile of rosé wines. Sequential inoculation with T. delbrueckii produced wines with an overall reduction in esters, mainly explained by the lower concentrations of Et esters of medium-chain fatty acids and isoamyl acetate. The lower ester concentrations of these wines were related to a reduction in fruity descriptors. An increase was observed, however, in other minor esters such as cinnamates and Et esters of branched acids. Zinc, Et isobutyrate, and Et dihydrocinnamate were selected as potential markers for this fermentation strategy. Sequential inoculation with M. pulcherrima resulted in rosé wines with an enhanced ester profile, reduced acetaldehyde, and increased anthocyans and tannins. Compared to the control wines fermented with S. cerevisiae, the changes observed in these wines were far subtler, especially for the volatile profile, sensory characteristics, and color parameters, with iso-Bu hexanoate and isoamyl butyrate being selected as potential markers.

Journal of Agricultural and Food Chemistry published new progress about Anthocyanins Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Synthetic Route of 123-29-5.

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

Ma, Cong published the artcileNickel-Catalyzed Carboxylation of Aryl and Heteroaryl Fluorosulfates Using Carbon Dioxide, Application of Methyl 2,6-dimethylisonicotinate, the main research area is aromatic carboxylic acid ester preparation; aryl heteroaryl fluorosulfate carbon dioxide carboxylation nickel catalyst.

The development of efficient and practical methods to construct carboxylic acids using CO2 as a C1 synthon is of great importance. Nickel-catalyzed carboxylation of aryl fluorosulfates and heteroaryl fluorosulfates with CO2 is described, affording arene carboxylic acids with good to excellent yields under mild conditions. In addition, a one-pot phenol fluorosulfation/carboxylation is developed.

Organic Letters published new progress about Aromatic carboxylic acids Role: SPN (Synthetic Preparation), PREP (Preparation). 142896-15-9 belongs to class esters-buliding-blocks, name is Methyl 2,6-dimethylisonicotinate, and the molecular formula is C9H11NO2, Application of Methyl 2,6-dimethylisonicotinate.

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

Park, SoYoon published the artcilePhysicochemical properties and volatile formation mechanism of medium-chain triacylglycerols during heating, Computed Properties of 111-11-5, the main research area is heptanal volatile compound main chain triglycerol heating; degradation mechanism; medium-chain triacylglycerol; thermal treatment; volatile profile.

Medium-chain triacylglycerols (MCTs), including caprylic acid (C8), a mixture of caprylic acid and capric acid (C8+C10), and high-MCT coconut oil (HMCO), were heated at 180°C. Their volatile profiles were analyzed to determine the MCT degradation mechanisms. As heating time increased to 10 h, secondary oxidation products and acid value of all samples increased continuously. Ketones, alkanes, fatty acid anions, fatty acid esters, and lactones were found in all heated MCTs. 2-Hexanone and heptane were detected in C8 after 2 h of heating, and 2-heptanone, heptanal, Me octanoate, γ-octalactone, and δ-octalactone were detected after 4 h. For the C8+C10, ketones, alkanes, and aldehydes were first observed Hydrolysis and decarboxylation seem to occur first for ketone and alkane formation. Cracking and cyclization may occur later for fatty acid esters and lactones in heated MCTs. This result can help to understand thermal decomposition mechanisms of saturated fatty acids like MCTs. Medium-chain triacylglycerols (MCTs) have been used in cosmetic and fragrance industries due to their high oxidative stability, relatively high polarity, and smooth textures. In addition, MCTs have gained popularity among consumers for their health beneficial effects. MCTs could be used as major continuous phases for many food ingredients receiving high thermal energy for cooking. The results of this study can provide basic and useful information on the physicochem. properties and thermally decomposed volatile profiles from MCTs, which can help to produce stable processed products with lengthy shelf-lives in the food industry.

Journal of Food Science published new progress about Coconut oil Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Computed Properties of 111-11-5.

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

Kinjuit, Henzilenah published the artcileFormulation and evaluation of hair shampoo containing tea tree (Melaleuca alternifolia) oil and virgin coconut (Cocos nucifera) oil, HPLC of Formula: 110-42-9, the main research area is tea tree virgin coconut oil hair shampoo formulation.

Tea Tree oil (TTO) contains beneficial properties such as antibacterial, antimicrobial, antiviral and anti-fungal. Whereas, the medium chain fatty acids in Virgin Coconut oil (VCO) able to protect hair follicles from heat, restoring hair’s moisture and other damage. This paper describes the phys. properties of seven hair shampoo formulations containing differing amount of TTO and VCO. The essential oils (TTO) applied in these formulations were extracted from fresh tea trees using steam distillation method and the VCO was produced from fermentation of fresh mature kernel coconut. Gas Chromatog.-Mass Spectrometry (GC-MS) anal. was conducted to determine the essential oil components of TTO and fatty acid composition of VCO. The shampoo formulations were subjected to evaluation of several parameters namely organoleptic, pH, viscosity, total solid content, foam stability, and dirt dispersion. The results show that the TTO was composed of terpene hydrocarbons with terpinene-4-ol as the major component; meanwhile lauric acid is major component of VCO. All the shampoo formulations were acid-balanced with pH range between 6.23 – 6.43; total solid contents were between 29.92 – 35.61%; stable foaming with the same foam volume for 4 min and no dirt was observed Rheol. test showed formulation with 6% TTO (0% VCO) has pseudo-plastic behavior and relatively lower total solid content which are desirable attributes in hair shampoo. Overall, TTO- and VCO-containing shampoo formulations showed ideal physicochem. properties for hair cleansing and treatments.

Journal of Physics: Conference Series published new progress about Coconut oil Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, HPLC of Formula: 110-42-9.

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

Kinjuit, Henzilenah published the artcileFormulation and evaluation of hair shampoo containing tea tree (Melaleuca alternifolia) oil and virgin coconut (Cocos nucifera) oil, Recommanded Product: Methyl octanoate, the main research area is tea tree virgin coconut oil hair shampoo formulation.

Tea Tree oil (TTO) contains beneficial properties such as antibacterial, antimicrobial, antiviral and anti-fungal. Whereas, the medium chain fatty acids in Virgin Coconut oil (VCO) able to protect hair follicles from heat, restoring hair’s moisture and other damage. This paper describes the phys. properties of seven hair shampoo formulations containing differing amount of TTO and VCO. The essential oils (TTO) applied in these formulations were extracted from fresh tea trees using steam distillation method and the VCO was produced from fermentation of fresh mature kernel coconut. Gas Chromatog.-Mass Spectrometry (GC-MS) anal. was conducted to determine the essential oil components of TTO and fatty acid composition of VCO. The shampoo formulations were subjected to evaluation of several parameters namely organoleptic, pH, viscosity, total solid content, foam stability, and dirt dispersion. The results show that the TTO was composed of terpene hydrocarbons with terpinene-4-ol as the major component; meanwhile lauric acid is major component of VCO. All the shampoo formulations were acid-balanced with pH range between 6.23 – 6.43; total solid contents were between 29.92 – 35.61%; stable foaming with the same foam volume for 4 min and no dirt was observed Rheol. test showed formulation with 6% TTO (0% VCO) has pseudo-plastic behavior and relatively lower total solid content which are desirable attributes in hair shampoo. Overall, TTO- and VCO-containing shampoo formulations showed ideal physicochem. properties for hair cleansing and treatments.

Journal of Physics: Conference Series published new progress about Coconut oil Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Recommanded Product: Methyl octanoate.

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

Shojaei Zinjanab, Maryam published the artcileNatural flavor biosynthesis by lipase in fermented milk using in situ produced ethanol, SDS of cas: 123-29-5, the main research area is Kluyveromyces Lactobacillus ethanol lipase fermented milk; Ethyl ester; Kluyveromyces; Lactobacillus; Palatase®; Solid phase microextraction (SPME).

Abstract: Many flavoring agents on the market are extracted from natural sources or synthesized chem. Due to the disadvantages of both methods, biotechnol. is becoming a promising alternative. In this study, short chain Et esters with fruity notes were biosynthesized in UHT whole milk via coupling ethanolic fermentation with lipase (Palatase) transesterification. Kluyveromyces marxianus, Lactobacillus fermentum and Lb. paracasei were used for fermentation Milk fat was esterified with in situ produced ethanol by adding lipase at 0, 8 and 24 h of fermentation Viable cell counts and pH were monitored during 48 h fermentation period. Flavor active Et esters, ethanol and free fatty acids were analyzed using headspace SPME-GC. Free fatty acid levels were lower in K. marxianus samples than lactobacilli. K. marxianus produced higher amounts of ethanol and esters than lactic acid bacteria. Viable cell counts decreased after lipase application at 0 and 8 h, possibly due to fatty acid production Addition of lipase at 24 h resulted in improved cell counts as well as ethanol and ester production in the case of K. marxianus. This study demonstrated that fermenting milk with alc. producing cultures in conjunction with lipase application can be an alternative to artificial flavorings in fermented milks. Graphic abstract: [graphic not available: see fulltext].

Journal of Food Science and Technology (New Delhi, India) published new progress about Fatty acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, SDS of cas: 123-29-5.

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

Ohlmann, Dominik M. published the artcileRegioselective Synthesis of β-Aryl- and β-Amino-Substituted Aliphatic Esters by Rhodium-Catalyzed Tandem Double-Bond Migration/Conjugate Addition, Recommanded Product: Ethyl 5-methylhex-5-enoate, the main research area is unsaturated ester rhodium phosphite catalyst isomerization conjugate addition; arylborate amine nucleophile conjugate addition unsaturated ester; ester aryl amino substituted derivative preparation.

Rhodium-phosphite catalysts were found to effectively mediate double-bond migrations within unsaturated esters. Once the double-bond is in conjugation with the carboxylate group, they also catalyze the Michael addition of carbon and nitrogen nucleophiles. In the presence of these catalysts, unsaturated carboxylates enter a dynamic equilibrium of positional and geometrical double-bond isomers. The conjugated species are continuously removed through 1,4-additions with formation of β-amino esters or β-arylated products, depending on the nucleophile employed. The applicability of both protocols to a range of substrates, such as fatty esters of different chain lengths and double-bond positions, and several nucleophiles including arylborates and primary and secondary amines, is demonstrated.

Chemistry – A European Journal published new progress about Aliphatic esters Role: SPN (Synthetic Preparation), PREP (Preparation) (β-aryl). 39495-82-4 belongs to class esters-buliding-blocks, name is Ethyl 5-methylhex-5-enoate, and the molecular formula is C9H16O2, Recommanded Product: Ethyl 5-methylhex-5-enoate.

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

El-Fadeal, Noha M. Abd published the artcileAntitumor activity of nitazoxanide against colon cancers: molecular docking and experimental studies based on Wnt/beta-catenin signaling inhibition, Quality Control of 55981-09-4, the main research area is antitumor activity nitazoxanide colon cancer mol docking signaling inhibition; PCNA; Wnt/β-catenin signaling; apoptosis; molecular docking; mouse colon cancer; nitazoxanide.

In colon cancer, wingless (Wnt)/ β-catenin signaling is frequently upregulated; however, the creation of a mol. therapeutic agent targeting this pathway is still under investigation. This research aimed to study how nitazoxanide can affect Wnt/ β-catenin signaling in colon cancer cells (HCT-116) and a mouse colon cancer model. Our study included 2 experiments; the first was to test the cytotoxic activity of nitazoxanide in an in vitro study on a colon cancer cell line (HCT-116) vs. normal colon cells (FHC) and to highlight the proapoptotic effect by MTT assay, flow cytometry and real-time polymerase chain reaction (RT-PCR). The second experiment tested the in vivo cytotoxic effect of nitazoxanide against 1,2-dimethylhydrazine (DMH) prompted cancer in mice. Mice were grouped as saline, DMH control and DMH + nitazoxanide [100 or 200 mg per kg]. Colon levels of Wnt and β-catenin proteins were assessed by Western blotting while proliferation was measured via immunostaining for proliferating cell nuclear antigen (PCNA). Treating HCT-116 cells with nitazoxanide (inhibitory concentration 50 (IC50) = 11.07 μM) revealed that it has a more cytotoxic effect when compared to 5-flurouracil (IC50 = 11.36 μM). Moreover, it showed relatively high IC50 value (non-cytotoxic) against the normal colon cells. Nitazoxanide induced apoptosis by 15.86-fold compared to control and arrested the cell cycle. Furthermore, nitazoxanide upregulated proapoptotic proteins (P53 and BAX) and caspases but downregulated BCL-2. Nitazoxanide downregulated Wnt/ β-catenin/glycogen synthase kinase-3β (GSK-3β) signaling and PCNA staining in the current mouse model. Hence, our findings highlighted the cytotoxic effect of nitazoxanide and pointed out the effect on Wnt/ β-catenin/GSK-3β signaling.

International Journal of Molecular Sciences published new progress about Amino acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Quality Control of 55981-09-4.

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