Category: 111-11-5

Kona, Rajesh published the artcileLutein and β-carotene biosynthesis in Scenedesmus sp. SVMIICT1 through differential light intensities, Application In Synthesis of 111-11-5, the main research area is Scenedesmus lutein beta carotene light intensity; Biosynthesis Pathway; GC/MS; LC/MS; Lipids; OJIP curve.

The study evaluated the biosynthesis of lutein and β-carotene by Scenedesmus sp. SVMIICT1 under five different light intensities (50, 250, 500, 750 and 1000 μE/m2/s). Liquid chromatog./mass spectrometry (LC/MS) was used to determine relative quantities of lutein and β-carotene. Relatively, high lutein content of 1.43 ± 0.04 and 0.70 ± 0.02 mg/g was found with 50 and 500 μE/m2/s conditions resp. β-Carotene content was quantified as 0.15 ± 0.01, 0.1 ± 0.01 and 0.12 ± 0.02 mg/g with 50, 250 and 500 μE/m2/s conditions resp. The light intensities altered photosystem II and photosystem I. At 50 μE intensity, high chlorophyll content and high photosystem II quantum efficiency (FV/FM) was observed Low FV/FM ratio of around 0.3 was detected in high light intensities (750 μE and 1000 μE) due to photoinhibition. Lipid fraction increased with increasing light intensity and the fatty acid profiles were similar in all five conditions.

Bioresource Technology published new progress about Carbohydrates 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, Application In Synthesis of 111-11-5.

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

Orellana-Palma, Patricio published the artcileEffects of Centrifugal Block Freeze Crystallization on Quality Properties in Pineapple Juice, Name: Methyl octanoate, the main research area is centrifugal freeze crystallization property pineapple juice.

Quality properties of concentrate pineapple juice obtained by block freeze crystallization (BFC) and evaporation technol. are investigated. After three concentration cycles, the solutes were approx. 3.2 times compared to the initial condition and the final color was darker than that of the fresh juice. BFC allowed for higher bioactive compounds retention than evaporation in terms of total phenolic, flavonoid, and anthocyanin content. The cryoconc. juice showed a similar aromatic profile to the fresh juice, with 26 and 23 compounds, resp. Conversely, only seven volatile compounds were identified in the evaporate sample. Finally, BFC is an effective technol. to preserve important quality properties from fresh fruit juices such as color, polyphenols, and aromatic profile.

Chemical Engineering & Technology published new progress about Carbohydrates 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, Name: Methyl octanoate.

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

Dekel, Amir published the artcileThe sulcatone receptor of the strict nectar-feeding mosquito Toxorhynchites amboinensis, Computed Properties of 111-11-5, the main research area is Toxorhynchites sulcatone receptor Or4 gene; Aedes aegypti; Insect repellent; Odorant receptor; Olfaction; Toxorhynchites amboinensis.

Controlling Ae. aegypti populations and the prevention of mosquito bites includes the development of monitoring, repelling and attract-and-kill strategies that are based on understanding the chem. ecol. of these pests. Olfactory-mediated attraction to mammals has recently been linked to the mosquito Aedes aegypti odorant receptor Or4, which is activated by animal-released 6-Methyl-5-hepten-2-one (sulcatone). This odorant is also a major component of flower scents and may play a role outside animal-host seeking. To explore the role of this chem. cue, we looked at the interaction between sulcatone and an Or4 homolog expressed in the antennae of the strict nectar-feeding mosquito Toxorhynchites amboinensis. Using the two-electrode voltage clamp of Xenopus oocytes as a heterologous expression system, we show that this receptor is a high intensity sulcatone receptor comparable to its Aedes counterparts. We also show that OR4 is activated by other aliphatic ketones and is inhibited by DEET. This pharmacol. characterization suggests that sulcatone may be operating in more than one context in the Culicidae family.

Insect Biochemistry and Molecular Biology published new progress about Aedes aegypti 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

Rajabi, Mehdi published the artcileQSAR Models for Predicting Aquatic Toxicity of Esters Using Genetic Algorithm-Multiple Linear Regression Methods, SDS of cas: 111-11-5, the main research area is Tetrahymena ester decyl acetate aquatic toxicity QSAR model; GA-MLR; Molecular descriptors; QSAR models; Tetrahymena pyriformis; toxicity of aliphatic esters; validation..

Esters are of great importance in industry, medicine, and space studies. Therefore, studying the toxicity of esters is very important. In this research, a Quant. Structure-Activity Relationship (QSAR) model was proposed for the prediction of aquatic toxicity (log 1/IGC50) of aliphatic esters towards Tetrahymena pyriformis using mol. descriptors. A data set of 48 aliphatic esters was separated into a training set of 34 compounds and a test set of 14 compounds A large number of mol. descriptors were calculated with Dragon software. The Genetic Algorithm (GA) and Multiple Linear Regression (MLR) methods were used to select the suitable descriptors and to generate the correlation models that relate the chem. structural features to the biol. activities. The predictive powers of the MLR models are discussed by using Leave-One-Out (LOO) cross-validation and external test set. The best QSAR model is obtained with R2 value of 0.899, Q2 LOO = 0.928, F = 137.73, RMSE = 0.263. The predictive ability of the GA-MLR model with two selected mol. descriptors is satisfactory and it can be used for designing similar group and predicting of toxicity (log 1/IGC50) of ester derivatives

Combinatorial Chemistry & High Throughput Screening published new progress about Aliphatic esters 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, SDS of cas: 111-11-5.

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

Wang, Luyao published the artcileVolatile organic compounds of Hanseniaspora uvarum increase strawberry fruit flavor and defense during cold storage, HPLC of Formula: 111-11-5, the main research area is Hanseniaspora uvarum volatile organic compound flavor cold storage; GC‐MS; Hanseniaspora uvarum; defense‐related enzymes; strawberry; volatile organic compounds.

Volatile organic compounds (VOCs) of antagonistic yeasts are considered as environmental safe fumigants to promote the resistance and quality of strawberry (Fragaria ananassa). By GC-MS assays, VOCs of Hanseniaspora uvarum (H. uvarum) fumigated strawberry fruit showed increased contents of Me caproate (5.8%), Me octanoate (5.1%), and Me caprylate (10.9%) in postharvest cold storage. Possible mechanisms of H. uvarum VOCs involved in regulations of the defense-related enzymes and substances in strawberry were investigated during postharvest storage in low temperature and high humidity (2 ± 1°C, RH 90%-95%). Defense-related enzymes assays indicated H. uvarum VOCs stimulated the accumulation of CAT, SOD, POD, APX, PPO, and PAL and inhibited biosynthesis of MDA in strawberry fruit under storage condition. Moreover, the expression levels of related key enzyme genes, such as CAT, SOD, APX42, PPO, and PAL6, were consistently increased in strawberry fruit after H. uvarum VOCs fumigation.

Food Science & Nutrition (Hoboken, NJ, United States) published new progress about Alcohols, C6-10 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, HPLC of Formula: 111-11-5.

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

Voce, Sabrina published the artcileCompositional characterization of commercial sparkling wines from cv. Ribolla Gialla produced in Friuli Venezia Giulia, SDS of cas: 111-11-5, the main research area is Ribolla Gialla sparkling wine terpene norisoprenoid lipid.

Ribolla Gialla (RG) is a white grape variety used in the production of high-quality sparkling wines. It is cultivated in a limited area between Friuli Venezia Giulia (FVG-Northeast Italy) and Slovenia; for this reason, there is little information about the composition and chem. characteristics of the sparkling wines produced. This work used different anal. approaches (FTIR spectroscopy, UHPLC-MS/MS, liquid-liquid extraction, SPE and SPME-GC-MS) to characterize thirty-three com. sparkling RG wines from different areas of FVG. The characteristics included the overall volatile profile and content of terpenes, C13-norisoprenoids, lipids, and metabolites of aromatic amino acids. The aroma profile of RG wines was mainly characterized by fermentative esters and β-damascenone, whereas other norisoprenoids and varietal aromas were below the odor threshold. Appreciable amounts of certain fatty acids were found (e.g., palmitic acid), which could be potentially correlated with greater foam stability. However, high concentrations of aromatic amino acids metabolites highlighted a higher risk of developing atypical aging defects.

European Food Research and Technology published new progress about Esters 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, SDS of cas: 111-11-5.

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

Rocabruno-Valdes, C. I. published the artcileCorrosion behavior of metallic materials in chicken fat-based biodiesel, Product Details of C9H18O2, the main research area is metallic material corrosion behavior chicken fat biodiesel.

The corrosion behavior of 304 type stainless steel, 1018 carbon steel pure Al and Cu in a chicken fatbased biodiesel during 180 days has been studied by using electrochem. impedance spectroscopy and electrochem. noise measurements. Cu and carbon steel had the highest corrosion rate. Both Al and 304 type stainless exhibited a localised, whereas Cu and carbon steel a mixed type of corrosion. Corrosion process was under charge transfer control for short exposure times, but under adsorption/desorption control for longer exposure times. The corrosiveness of the biodiesel resulted from a degradation in its physicochem. properties.

International Journal of Electrochemical Science published new progress about Biodiesel fuel Role: PRP (Properties), TEM (Technical or Engineered Material Use), USES (Uses). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Product Details of C9H18O2.

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

Tang, Ke published the artcileChemical and Sensory Characterization of Vidal Icewines Fermented with Different Yeast Strains, COA of Formula: C9H18O2, the main research area is icewine volatile compound aroma fermentation.

The aim of this study is to comprehensively investigate the aroma composition and sensory attributes of Vidal icewine fermented with four yeast strains (ST, K1, EC1118, and R2). A total of 485 kinds of volatile components were identified by comprehensive two-dimensional gas chromatog.-time of flight mass spectrometry, among which 347 kinds of volatile compounds were the same in four kinds of sample. The heat map was conducted with 156 volatile compounds, which have aroma contributions, and the anal. results identified the characteristics of the aroma composition of icewine fermented with different yeasts. Quant. descriptive anal. was performed with a trained panel to obtain the sensory profiles. The aroma attributes of honey and nut of the icewine fermented by R2 were much higher than others. Partial least squares discriminant anal. further provided 40 compounds that were mainly responsible for the differences of the aroma characteristics of the icewines fermented by four yeasts. This study provides more data on the current status of Vidal icewines by main com. yeasts.

Fermentation published new progress about Caramel (color). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, COA of Formula: C9H18O2.

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

Blackford, C. L. published the artcileExploring the influence of grape tissues on the concentration of wine volatile compounds, Product Details of C9H18O2, the main research area is volatile compound grape tissue skin seed wine flavor.

Knowledge of varietal wine flavor and aroma compounds has improved, but gaps exist concerning how grape composition impacts wine style. This work aimed to explore the influence that different grape tissues can have on the volatile profiles of wines. Riesling and Cabernet Sauvignon berries were separated into skin, flesh and seeds. Two sets of fermentations were performed using separated tissues: one using an equal mass of each tissue and another where the amount of each tissue in 25 g of berries was fermented. When an equal mass of tissue was used, the seed-derived wines had a higher concentration of esters than that produced from other grape tissues. Those produced using skins had the highest concentration of lipoxygenase pathway-derived compounds, and, for Riesling, a higher concentration of monoterpenes. When the proportional amounts of each tissue found per berry were used, the flesh-derived wines generally had a higher concentration of many wine volatiles compared to the other tissues. This reflects the greater proportion of flesh tissue in the berry compared to skin and seeds. Seed-derived compounds can enhance ester biosynthesis during fermentation and skins appear to have high lipoxygenase pathway activity. Nevertheless, the flesh makes up such a large proportion of the whole berry that it has the major influence on volatile profiles of whole berry fermentations Different berry tissues can alter wine composition in unique ways, and this can inform strategies to alter wine composition through vineyard management or the selection of new germplasm.

Australian Journal of Grape and Wine Research published new progress about Aromatic compounds 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, Product Details of C9H18O2.

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

Park, Ho Young published the artcileProperties of bioliquids and their impacts on combustion and boiler operation, Related Products of esters-buliding-blocks, the main research area is bioliquid combustion boiler operation property.

This study reports the results of a detailed anal. of 203 samples of bioliquid used as a substitute for heavy fuel oil in oil-fired power plants. Bioliquid is a mixture of various vegetable oils, animal fats and its byproducts. The heating value of bioliquid is approx. the same as that of heavy fuel oil; however, bioliquid has significantly less N and S components and exhibits better combustion reactivity. For a com. electricity generation, demonstration tests firing bioliquid in 75, 90, and 100 MW oil-fired boilers were conducted, and the results were compared with those obtained by firing heavy fuel oil. Further, the impacts of bioliquid fuel characteristics on combustion and boiler operation were also investigated. During the bioliquid firing, the heat absorption in the furnace decreased and the furnace exit gas temperature increased in comparison to the heavy fuel oil firing. No serious problems occurred in the boiler operation, and NOx and SOx emissions remarkably decreased. With minor modifications on the fuel transfer system and atomization devices, bioliquid could successfully replace heavy fuel oil in the existing oil-fired boilers. The limited values for 18 fuel properties of bioliquid are suggested by considering the stable boiler operation and environmental safety.

Energy (Oxford, United Kingdom) published new progress about Boilers, oil-fired. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Related Products of esters-buliding-blocks.

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