Tag: M.W=150-200

Zhang, Boqin published the artcileEffects of three indigenous non-Saccharomyces yeasts and their pairwise combinations in co-fermentation with Saccharomyces cerevisiae on volatile compounds of Petit Manseng wines, SDS of cas: 106-32-1, the main research area is Petit manseng wine fermentation Saccharomyces cerevisiae volatile compound; Aroma compounds; Dynamic changes; Indigenous non-Saccharomyces strains; Mixed fermentation; Petit Manseng wine.

The combined use of selected Saccharomyces cerevisiae and non-Saccharomyces strains is becoming an effective way to achieve wine products with distinctive aromas. The purpose of this study was to further improve the wine aroma complexity through optimizing inoculation protocols of multi-starters. The three indigenous non-Saccharomyces strains (Torulaspora delbrueckii, Hanseniaspora vineae, and Lachancea thermotolerans) and their pairwise combinations (co-inoculation) were sequentially inoculated with S. cerevisiae in Petit Manseng grape must, resp. Results evidenced a higher divergence in aroma compounds produced by two different non-Saccharomyces species compared to single species. Especially for the combination of T. delbrueckii and L. thermotolerans, the concentrations of most Et esters were further increased, contributing to a higher score of pineapple note in agreement with sensory anal. Our results highlighted that the inoculation of more than one non-Saccharomyces species is a potential strategy to improve the aroma diversity and quality of industrial wines.

Food Chemistry published new progress about Ananas comosus. 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, SDS of cas: 106-32-1.

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

Vollmer, Kathrin published the artcileNon-thermal processing of pineapple (Ananas comosus [L.] Merr.) juice using continuous pressure change technology (PCT): HS-SPME-GC-MS profiling, descriptive sensory analysis, and consumer acceptance, Quality Control of 111-11-5, the main research area is pineapple juice; Juice quality; Non-thermal processing; Pasteurisation; Pineapple; Pressure change technology; Sensory analysis; Volatiles.

The effects of single and twofold continuous pressure change technol. (PCT) applications on the volatiles and sensory characteristics of pineapple juice were studied. Fresh and thermally pasteurised juices were addnl. characterised. 128 volatiles were tentatively assigned in the four juices. Thermal pasteurisation and a single PCT treatment caused substantial losses in total volatiles of 6 and 20%, resp. A second PCT passage further reduced the volatiles (36%) and is thus not recommended. PCT-treated samples were clearly distinguished from the remaining juices by principal component anal. The descriptive sensory profiles, assessed by trained panellists, were not substantially affected by thermal pasteurisation and non-thermal PCT. The fresh juice exhibited a significant fishy off-flavor. In the consumer acceptance test, the thermally pasteurised juice was highly rated compared to both PCT-treated and the fresh juice. This study highlights the potential of PCT to avoid the genesis of off-flavours in fresh-like pineapple juice.

Food Chemistry published new progress about Ananas comosus. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Quality Control of 111-11-5.

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

Zhang, Ning published the artcileChanges of amygdalin and volatile components of apricot kernels during the ultrasonically-accelerated debitterizing, Related Products of esters-buliding-blocks, the main research area is amygdalin apricot kernel ultrasonic debitterizing; Amygdalin; Apricot kernels; Debitterizing; Epimerization; Volatile components.

Ultrasound has been regarded as an efficient novel technique for debitterizing of the apricot kernels, but its influence is severely concerned on the possible epimerization of D-amygdalin to the L-amygdalin, a more potentially toxigenic compound Considering this, the experiments were conducted to investigate the epimerization of D-amygdalin and the volatile components in the debitterizing water, which were separated and identified by the high performance liquid chromatog. (HPLC) and gas chromatog. with a mass spectrometer (GC-MS), resp. The results indicate that the ultrasonically-debitterizing did not cause the epimerization of D-amygdalin to the L-amygdalin, while the procedure can be greatly accelerated due to the rapid mass transfer and degradation of D-amygdalin induced by ultrasound irradiation In addition, the water from the ultrasonically-debitterizing of apricot kernels exerted more aromas compared with that of the conventional debitterizing, which might have more applications about this kind of water. In a word, ultrasound can be safely applied in the debitterizing industry of apricot kernels.

Ultrasonics Sonochemistry published new progress about Ultrasonication. 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

Wang, Yue published the artcileDietary supplementation with inulin improves lactation performance and serum lipids by regulating the rumen microbiome and metabolome in dairy cows, Application of Methyl octanoate, the main research area is inulin diet lactation dairy cow serum lipid microbiome metabolome; Dairy cow; Inulin; Metabolomics; Milk quality; Ruminal microbiota; Serum lipid.

This study investigated the effects of inulin on rumen fermentation parameters, ruminal microbiome and metabolites, as well as lactation performance and serum indexes in dairy cows. Sixteen Holstein dairy cows with similar body conditions were randomly divided into 2 groups (n = 8 per group), with inulin addition at 0 and 200 g/d per cow. The experiment lasted for 6 wk, including a 1-wk adaptation period and a 5-wk treatment period. At the end of the exptl. period, the milk, serum and rumen fluid were sampled and analyzed. The microbiome and metabolome in the rumen fluid were analyzed via 16S rRNA sequencing and untargeted metabolomics, resp. The results showed that supplementation with inulin (200 g/d per cow) increased the milk yield (P = 0.001), milk protein (P = 0.032), lactose rate (P = 0.004) and proportion of saturated fatty acids (SFA) in milk (P < 0.001), but decreased the proportion of unsaturated fatty acids (USFA) (P = 0.041). Rumen pH (P = 0.040) and the concentration of NH3-N (P = 0.024) were decreased; however, acetate (P < 0.001), propionate (P = 0.003), butyrate (P < 0.001) and lactic acid (LA) (P = 0.043) were increased. The total cholesterol (TC) (P = 0.008) and triglycerides (TG) (P = 0.01) in serum were also reduced. Addnl., inulin addition elevated the relative abundance of several beneficial symbiotic and short-chain fatty acid (SCFA)-producing bacteria, such as Muribaculaceae (false discovery rate [FDR]-adjusted P < 0.01), Acetitomaculum (FDR-adjusted P = 0.043), and Butyrivibrio (FDR-adjusted P = 0.036), while elevating the levels of L-lysine (FDR-adjusted P = 4.24 x 10-3), L-proline (FDR-adjusted P = 0.0158), and L-phenylalanine (FDR-adjusted P = 0.027). In contrast, several pathogens and ruminal bacteria abundant in high-fat diets, such as Escherichia-Shigella (FDR-adjusted P = 0.022), Erysipelotrichaceae__UCG-004 (FDR-adjusted P < 0.01) and RF39 (FDR-adjusted P = 0.042) were decreased along with the reduction of lysophosphatidylcholine (LysoPC) (18:1 (9Z)) (FDR-adjusted P = 1.03 x 10-3), LysoPC (16:0) (FDR-adjusted P = 0.0108), LysoPC (18:2 (9Z, 12Z)) (FDR-adjusted P = 1.65 x 10-3) and 8-methylnonenoate. In conclusion, dietary inulin supplementation could increase the relative abundance of commensal microbiota and SCFA-producing bacteria, upregulate amino acidmetabolism and downregulate lipid metabolism in the rumen of dairy cows, which might further improve lactation performance and the level of serum lipids. Animal Nutrition published new progress about Acetitomaculum. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application of Methyl octanoate.

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

Arasu, Mariadhas Valan published the artcileEssential oil of four medicinal plants and protective properties in plum fruits against the spoilage bacteria and fungi, Recommanded Product: Methyl octanoate, the main research area is essential oil medicinal plant plum fruit spoilage bacteria fungus.

There are limited studies available regarding the chem. composition of essential oils and their activities against fruit spoilage bacteria and fungi. In this study, chem. composition of essential oils from medicinal plants namely Acorus calamus, Allium sativum, Mucuna pruriens, and Sesamum indicum L showed invitro antibacterial and antifungal properties against fruits spoilage microbes were evaluated. Gas Chromatograph-Mass Spectrometry anal. confirmed the presence of major metabolites namely Hydroxylamine (98.26%), 1,2,4 – trimethoxy-5-1-propenyl (93.07%), Dodecanoic acid, 1,2,3-propanetriyl ester (92.64) and 2-diisoprophylphosphinnoethane (67.97%) from the studied plants. The min. inhibitory concentration of the essential oils against bacteria were ranged from 11.3 ± 2.3 to 617 ± 4.9 μg/mL and fungi were ranged from 1.1 ± 0.4 to 292 ± 3.2 μg/mL, resp. Among the essential oil, Allium sativum showed significant antibacterial activity with least min. inhibitory concentration and min. bactericidal concentrations (11.3 ± 2.3 μg/mL and 24 ± 1.6 μg/mL) while Sesamum indicum oil showed the least activity with high min. inhibitory concentration and min. bactericidal concentrations values (460 ± 11.9 μg/mL and 940 ± 12.8 μg/mL). Interestingly, Allium sativum documented the highest antifungal activity against Penicillium notatum and also significantly inhibited the growth of other tested fungal species such as, Aspergillus niger, Aspergillus flavus and Rhizopus microsporus. Among all tested essential oils, in combination of studied antibiotics, essential oils from Allium sativum showed excellent synergistic activity against seven out of nine spoilage microbes. Two-way anal. of variance showed significant depletion of pathogenic microorganism due to the effect of essential oils (p < 0.05). In addition, essential oil from Allium sativum significantly reduced the growth of Aspertillus flavus and Aspergillus niger on plum fruit. Results revealed the application of essential oil from Allium sativum counter Aspergillus flavus growth and prevented deterioration of plum fruit. Industrial Crops and Products published new progress about Acorus calamus. 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

Ahmad, Mushtaq published the artcilePhytochemical and pharmacological studies on medicinally important plant Opuntia dillenii collected from Pakistan, Application In Synthesis of 110-42-9, the main research area is Opuntia dillenii medicinal plant phytochem pharmacol study Pakistan.

Keeping in view the numerous useful pharmacol. activities of Opuntia plants, we explored in detail the secondary metabolites and metals in different parts, fatty acids composition of seed oil and a detailed anti-inflammatory study of the cladodes along with acute toxicity studies of Opuntia dillenii collected from Pakistan. Carbohydrates, saponins, tannins, flavonoids, terpenoids and phenols were present in both the cladodes and fruit part. Terpenes and sterols were found in the cladode part while alkaloids were only present in the fruit part. Highest quantity of sodium was found in the same quantity (394.00 ppm) cladodes and fruit while potassium was abundantly present in the fruit part (1543 0.00 ppm). Calcium was present in a very high quantity in the cladodes (11820.00 ppm) and fruit (16419.40 ppm). Linoleic acid, a potent cyclooxygenase-2 (COX-2) inhibitor, was with highest concentration (59.153%) among fatty acids. The crude extract displayed significant anti-inflammatory activity (50.88%) at 300 mg/kg body weight dose after 3h dose injection. Acute toxicity tests confirmed the safety of crude extract to a dose level of up to 1000 mg/kg body weight The present study provides a base to the natural product chemists to carry out further studies on the isolation of the secondary metabolites from Opuntia dillenii and explore the bio-efficacies of the individual compounds

International Journal of Biosciences published new progress about Acute toxicity. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Application In Synthesis of 110-42-9.

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

Ahmad, Mushtaq published the artcilePhytochemical and pharmacological studies on medicinally important plant Opuntia dillenii collected from Pakistan, Synthetic Route of 111-11-5, the main research area is Opuntia dillenii medicinal plant phytochem pharmacol study Pakistan.

Keeping in view the numerous useful pharmacol. activities of Opuntia plants, we explored in detail the secondary metabolites and metals in different parts, fatty acids composition of seed oil and a detailed anti-inflammatory study of the cladodes along with acute toxicity studies of Opuntia dillenii collected from Pakistan. Carbohydrates, saponins, tannins, flavonoids, terpenoids and phenols were present in both the cladodes and fruit part. Terpenes and sterols were found in the cladode part while alkaloids were only present in the fruit part. Highest quantity of sodium was found in the same quantity (394.00 ppm) cladodes and fruit while potassium was abundantly present in the fruit part (1543 0.00 ppm). Calcium was present in a very high quantity in the cladodes (11820.00 ppm) and fruit (16419.40 ppm). Linoleic acid, a potent cyclooxygenase-2 (COX-2) inhibitor, was with highest concentration (59.153%) among fatty acids. The crude extract displayed significant anti-inflammatory activity (50.88%) at 300 mg/kg body weight dose after 3h dose injection. Acute toxicity tests confirmed the safety of crude extract to a dose level of up to 1000 mg/kg body weight The present study provides a base to the natural product chemists to carry out further studies on the isolation of the secondary metabolites from Opuntia dillenii and explore the bio-efficacies of the individual compounds

International Journal of Biosciences published new progress about Acute toxicity. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Synthetic Route of 111-11-5.

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

Khlifi, Aida published the artcileGas chromatography-mass spectrometry (GM-MS) analysis and biological activities of the aerial part of Cleome amblyocarpa Barr. and Murb, Category: esters-buliding-blocks, the main research area is Cleome aerial part biol activity gas chromatog mass spectrum; Analgesic activity; Cleome amblyocarpa; Flavonoids; GC-MS; Lung cancer; Polyphenols; Toxicity.

Cleome amblyocarpa Barr. and Murb is a medicinal plant widespread in North Africa and widely used in Tunisia to treat diabetes and colic. The non-volatile (polyphenols, flavonoids, tannins, and flavonols) and volatile compounds (GC-MS) of C. amblyocarpa leaves and stems have been studied. The antioxidant, antimicrobial, analgesic, and cytotoxic activities of hydroalcoholic extracts of C. amblyocarpa leaves and stems were also investigated. The major volatile components were β-caryophyllene (46.9%), eugenol (25.6%), Et 3-methylpentanoate (16.2%), 7-epi-silphiperfol-5-ene (11.0%), and α-copaene (7.0%). The antioxidant activity has been evaluated using various in vitro assays, such as DPPH free radical scavenging activity, iron-chelating capability, and ability to inhibit lipid peroxidation (TBARS). The antibacterial and antifungal effectiveness of leaves and stems parts of Cleome amblyocarpa were investigated by means of the disk diffusion and microdilution techniques. The in vitro cytotoxicity of the hydroalcoholic extract of C. amblyocarpa on A549 and H1299 lung adenocarcinoma cells was determined using the crystal violet assay. The acute toxicity of the extracts on Swiss albino mice at the doses of 3000, 1500, and 500 mg/kg body weight was evaluated. The analgesic effect of leaves and stems extract was also determined by means of the acetic acid induced writhing test. The results indicated that the leaves have higher phenols, and flavonoids contents and potential antioxidant, antimicrobial, and anticancer activities in comparison to stem. In addition, the aerial part of C. amblyocarpa did not cause signs of toxicity or death in animals at doses up to 3000 mg/kg and have a significant analgesic activity.

Environmental Science and Pollution Research published new progress about Acute toxicity. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Category: esters-buliding-blocks.

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

Zarini, Daniele published the artcileAre In Silico Approaches Applicable As a First Step for the Prediction of e-Liquid Toxicity in e-Cigarettes?, Recommanded Product: Ethyl nonanoate, the main research area is toxicity electronic cigarette liquid QSAR model.

Recent studies have raised concerns about e-cigarette liquid inhalation toxicity by reporting the presence of chems. with European Union CLP toxicity classification. In this scenario, the regulatory context is still developing and is not yet up to date with vaping current reality. Due to the paucity of toxicol. studies, robust data regarding which components in tent. In this study we applied computational methods for studied chems. as a useful tool for predicting the acute toxicity of chems. contained in e-liquids The purpose of t the potential health concerns associated with e-liquid ingredients, (b) to prioritize e-liquid ingredients by calculating the e-tox index, and (c) to estimate acute toxicity of e-liquid mixtures QSAR models were generated using QSARINS software to fill the acute toxicity data gap of 264 e-liquid ingredients. As a second step, the potential acute toxicity of e-liquids mixtures was evaluated. Our preliminary data suggest that a computational approa serve as a roadmap to enable regulatory bodies to better regulate e-liquid composition and to contribute to consumer health protection.

Chemical Research in Toxicology published new progress about Acute toxicity. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Recommanded Product: Ethyl nonanoate.

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

Zarini, Daniele published the artcileAre In Silico Approaches Applicable As a First Step for the Prediction of e-Liquid Toxicity in e-Cigarettes?, SDS of cas: 140-11-4, the main research area is toxicity electronic cigarette liquid QSAR model.

Recent studies have raised concerns about e-cigarette liquid inhalation toxicity by reporting the presence of chems. with European Union CLP toxicity classification. In this scenario, the regulatory context is still developing and is not yet up to date with vaping current reality. Due to the paucity of toxicol. studies, robust data regarding which components in tent. In this study we applied computational methods for studied chems. as a useful tool for predicting the acute toxicity of chems. contained in e-liquids The purpose of t the potential health concerns associated with e-liquid ingredients, (b) to prioritize e-liquid ingredients by calculating the e-tox index, and (c) to estimate acute toxicity of e-liquid mixtures QSAR models were generated using QSARINS software to fill the acute toxicity data gap of 264 e-liquid ingredients. As a second step, the potential acute toxicity of e-liquids mixtures was evaluated. Our preliminary data suggest that a computational approa serve as a roadmap to enable regulatory bodies to better regulate e-liquid composition and to contribute to consumer health protection.

Chemical Research in Toxicology published new progress about Acute toxicity. 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