Month: December 2022

Wei, Jianping published the artcileAssessment of chemical composition and sensorial properties of ciders fermented with different non-Saccharomyces yeasts in pure and mixed fermentations, Category: alcohols-buliding-blocks, the main research area is Pichia Hanseniaspora Torulaspora sensory property cider fermentation; 2-methylbutanol (PubChem CID: 8723); 2-methylbutyl acetate (PubChem CID: 12209); 3-methylbutyl acetate (PubChem CID: 31276); Cider; DL-malic acid (PubChem CID: 525); Glycerol (PubChem CID: 753); Hanseniaspora vineae; Partial least squares regression; Pichia kluyveri; Simultaneous fermentation; chlorogenic acid (PubChem CID: 1794427); ethyl octanoate (PubChem CID: 7799); phenylethyl alcohol (PubChem CID: 6054); β-damascenone (PubChem CID: 5366074); β-phenethyl acetate (PubChem CID: 7654).

This work presents the attempt to enhance the flavor complexity of cider fermented by different non-Saccharomyces species. Pichia kluyveri and Hanseniaspora vineae pure cultures were used as reference ciders. Mixed cultures between all 4 species gave 5 fermentations, where Hanseniaspora uvarum or Torulaspora quercuum were included for apple juice fermentation Chem. composition and sensorial properties of all ciders were studied. The results indicated that the growth of P. kluyveri and H. vineae were interreacted and also affected by H. uvarum and T. quercuum. H. vineae was more capable of consuming sugar than P. kluyveri. Ciders from the single culture fermentation with P. kluyveri (Pk), as well as from mixed fermentation with P. kluyveri and H. uvarum (Pk-Hu), had high residual sugar, sugar/acid ratio, and glucose-fructose consumption ratio. Large shifts in the consumption and production of organic acids and polyphenols among all ciders were observed The calculation of the relative odor activity value (rOAV) showed that 17 volatile compounds had an rOAV >1 in at least one sample, and acetate esters and Et esters were the groups with the highest number of volatile compounds of importance to the cider aroma. Among these 17 compounds, 3-methylbutyl acetate, 2-methylbutyl acetate, Et hexanoate, Et octanoate, and β-damascenone exhibited high rOAVs in some ciders and might contribute fruity, floral, and sweet features to the cider aroma. Besides, the tropical fruity aroma from 3-methylbutyl acetate was only perceived in Pk and Pk-Hu. The partial least squares regression (PLSR) anal. revealed that acetate esters contributed pos. to the roasted and cooked odor of all ciders. This is the first study evaluating simultaneous fermentation of two non-Saccharomyces yeasts to produce cider, which provides new insights into cider production

International Journal of Food Microbiology published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Giffen-Lemieux, Justine E. published the artcileCharacterization of the volatiles’ profiles of the eggs of forensically relevant Lucilia sericata and Phormia regina (Diptera: Calliphoridae) blow flies by SPME-facilitated GC-MS, Application In Synthesis of 505-10-2, the main research area is Lucilia Phormia egg volatile substance solid phase microextraction GCMS; Calliphoridae; GC-MS; headspace volatiles; necrophagous insect eggs.

The attraction of necrophagous insects, particularly blow flies, to corpses and carrion is of ecol., economic, and agricultural importance, although the mechanisms by which it occurs are not well understood. Much of the published research on blow fly attractants has focused on volatiles emitted from carrion surrogates, but little attention has been given to the possibility that blow fly eggs themselves may emit chem. cues that are responsible for conspecific and heterospecific insect attraction. In this study, the headspace volatiles emitted from eggs representing two aggregated oviposition events that were collected 1 mo apart from two species of the Calliphoridae family (Order: Diptera), Lucilia sericata (Meigen), and Phormia regina (Meigen) were analyzed via solid-phase microextraction-facilitated GC-MS. The volatiles’ profiles were found to be consistent between samples representing the same species, but unique between the two species. Over 100 mols. covering a wide range of compound classes that included alcs., aldehydes, esters, amines, ketones, and organosulfur compounds were identified. The profile of volatiles emitted from the L. sericata eggs contained several alkanes and aldehydes, whereas salient features of the P. regina headspace included numerous esters and ketones. Between the two species, 42 compounds were shared, several of which were carboxylic acids. Little overlap between the range of compounds detected and those reported to be emitted from decomposing remains was observed

Journal of Medical Entomology published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Application In Synthesis of 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fujimoto, Akihito published the artcileIdentification of lactic acid bacteria and yeasts, and characterization of food components of sourdoughs used in Japanese bakeries, Recommanded Product: 3-(Methylthio)propan-1-ol, the main research area is Lactobacillus lactic acid bacteria yeast sourdough food component; Bakery; Lactic acid; Lactobacillales; Saccharomyces cerevisiae; Sourdough.

Sourdough is a low-pH, fermented product prepared using lactic acid bacteria and yeast mixed with rye flour, wheat flour, and water. It is used and backslopped in bakeries because it enhances texture, flavor, and dough expansion of bread. Various lactic acid bacteria and yeasts have been identified in sourdough, especially in the West. However, microbial and phys. characteristics of sourdough from Japan have not been investigated. Here, we characterized the microbial composition and food component characteristics of sourdough from four bakeries in Kansai region, Japan, and performed sensory and quality evaluation of baguettes enriched with 10% sourdough. We detected different species of lactic acid bacteria such as Lactobacillus brevis, Lactobacillus alimentarius, Lactobacillus pentosus, Lactobacillus vaccinostercus, Lactobacillus sanfranciscensis, and Lactobacillus sakei. The identified yeasts primarily included Saccharomyces cerevisiae, with Candida humilis detected in some samples. Components such as amino acids, lactic acid, acetic acid, ethanol, 3-methyl-1-butanol, Et acetate, and phenethyl alc. differed among samples and distinctively affected flavor, quality, and aroma of sourdough-enriched baguettes. The different species of lactic acid bacteria and the ratio of lactic acid bacteria to yeasts possibly affected food components such as free amino acids, sugars, and organic acids via the Maillard reaction, which influences the savory aromas of bread. Future investigation of the effect of lactic acid bacteria will help to improve the overall quality of bread.

Journal of Bioscience and Bioengineering published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Recommanded Product: 3-(Methylthio)propan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Changyuan published the artcileEffect of storage on metabolites of brown rice, SDS of cas: 64519-82-0, the main research area is Oryza palmitoleic linoleic lauric acid cholesterol storage quality; brown rice; gas chromatography-mass spectrometry; metabolite; storage.

Storage is an essential part of brown rice circulation. During the storage process, the metabolic activity of brown rice is still ongoing, and long-term storage leads to the deterioration of brown rice. Metabolomics anal. was performed using gas chromatog.-mass spectrometry to investigate the changes in metabolites of brown rice after storage at 18°C for 12 mo. Results : In terms of quantity, sugar, fatty acids, and other metabolites in brown rice decreased after storage, and alcs., aldehydes, phenols, and amines increased. A total of 34 differential metabolites were screened. In terms of contents, carbohydrates, amino acids, and fatty acids of brown rice decreased after storage, while those of sugar alc., amines, and aldehydes increased after storage. Cluster anal. of the samples at zero storage time revealed that the metabolites expressed least became highly expressed after storage and those expressed highly became low after storage. Metabolic pathway anal. showed that storage significantly influenced the lipid metabolism in brown rice. Palmitoleic acid, cholesterol, linoleic acid, and lauric acid are four key metabolites in lipid metabolism during storage of brown rice. Storage has the greatest effect on lipids. Storage caused a ‘reverse change’ in the metabolites content of brown rice. The results obtained may help in understanding the changes in metabolites profile and delaying of the quality deterioration of brown rice during storage.

Journal of the Science of Food and Agriculture published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 64519-82-0 belongs to class alcohols-buliding-blocks, name is (3R,4R,5R)-6-(((2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexane-1,2,3,4,5-pentaol, and the molecular formula is C12H24O11, SDS of cas: 64519-82-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Anastasaki, Eirini published the artcileElectrophysiological responses of Philaenus spumarius and Neophilaenus campestris females to plant volatiles, Application In Synthesis of 124-76-5, the main research area is Philaenus Neophilaenus Olea Polygala volatile electrophysiol; Aphrophoridae; Apiaceae; Apium graveolens; Cistaceae; Cistus creticus; Cynodon dactylon; Fabaceae; GC-EAD; Insect–plant interactions; Lolium arundinaceum; Medicago sativa; Neophilaenus campestris; Olea europea; Oleaceae; Olfactometer; Petroselinum crispum; Philaenus spumarius; Pinaceae; Pinus halepensis; Poaceae; Polygala myrtifolia; Polygalageae; Xyllela fastidiosa.

In the present study, we aim to identify volatile organic compounds (VOCs) that may act as semiochems. for these species. Using the dynamic headspace technique, we collected VOCs from Olea europaea L. and Polygala myrtifolia L., highly susceptible plant species to X. fastidiosa, Pinus halepensis Mill., a common plant where N. campestris is found during summer, and from host plant species that are used as cover crops or exist as natural vegetation in olive orchards, such as Cistus creticus L., Medicago sativa L., Cynodon dactylon (L.) Pers. In addition, antennae of P. spumarius females responded to camphor, limonene, 4-Me octane and sabinene. These compounds were found in the volatile profile of at least 5 out of 8 examined plant species. Behavioral bioassays using Y-tube olfactometry were performed on volatiles that elicited antennal responses during electrophysiol. studies. Among the compounds tested in behavioral studies, namely (-)-α-pinene, (+)-α-pinene, sabinene, (-)-S-limonene and (1R)-(+)-camphor, only the last one elicited a significant attraction response by P. spumarius females. The results achieved shed light on the VOCs from selected host plant species of X. fastidiosa that are perceived by two important insect vectors and a non-host plant, P. crispum. The identification of semiochems. for manipulating spittlebugs behavior contribute to the development of efficient monitoring tools for X. fastidiosa vectors.

Phytochemistry (Elsevier) published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, Application In Synthesis of 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Holm, Tobias Palle published the artcileScreening of novel excipients for freeze-dried protein formulations, Related Products of alcohols-buliding-blocks, the main research area is freeze dried protein formulation lyoprotectant stability; Excipients; Formulation development; Freeze-drying; High throughput; Image analysis; Intrinsic fluorescence spectroscopy; Protein stability; Solid state analysis.

The typical excipients used as bulking agents and lyoprotectants for freeze-drying are usually limited to only a few selected substances, such as sucrose and mannitol. Considering the sheer diversity amongst proteins, it is doubtful that this limited choice should, in every case, provide the best possible option in order to achieve the most stable product. In this work, a screening of 12 proteins with 64 excipients was conducted in order to increase the knowledge space of potential excipients. Three critical quality attributes (CQAs) of the freeze-dried products, namely the solid state, the cake appearance and the protein integrity based on changes in tryptophan fluorescence were investigated by high throughput X-ray powder diffraction, image anal. and intrinsic fluorescence spectroscopy, resp. It was found, that in some cases the excipient had a dominating influence on the CQAs, while in other cases the CQAs were primarily protein dependent, or that the CQAs were dependent on the combination of both. In the course of this investigation, a general view of potentially relevant excipients, and their interplay with various proteins, was obtained, thereby furthermore paving the way for the use of novel freeze-drying excipients.

European Journal of Pharmaceutics and Biopharmaceutics published new progress about Albumins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 64519-82-0 belongs to class alcohols-buliding-blocks, name is (3R,4R,5R)-6-(((2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexane-1,2,3,4,5-pentaol, and the molecular formula is C12H24O11, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Eckstrum, Kirsten published the artcileUtilization of a model hepatotoxic compound, diglycolic acid, to evaluate liver Organ-Chip performance and in vitro to in vivo concordance, COA of Formula: C4H6O5, the main research area is hepatotoxicity diglycolic acid liver organ chip performance; Diglycolic acid; Hepatocytes; In vivo concordance; Liver-chip; Microphysiological systems; Toxicity.

Microphysiol. systems (MPS) are emerging as potentially predictive models for drug safety and toxicity assessment. To assess the utility of these systems, the Food and Drug Administration partnered with Emulate to evaluate the Human Liver Organ-Chip in a regulatory setting. Diglycolic acid (DGA), a known hepatotoxin, was evaluated in the Liver-Chip and compared to a multi-well plate format to assess the Liver-Chip’s capabilities, limitations, overall performance, and concordance with other in vivo and in vitro studies. Cryopreserved primary human hepatocytes were exposed to DGA from 1 to 20 mM in Liver-Chips or traditional multi-well plates. We found that 10 mM or 20 mM of DGA was severely cytotoxic in both platforms, while 5 mM was mildly cytotoxic in Liver-Chips. Addnl., some hepatocyte functions were reduced with 5 mM DGA in Liver-Chips and 1 mM in well plates. Individual well effects were greater or occurred sooner than in the Liver-Chips. Examination of the performance of the Liver-Chip showed that variability was low for biochem. endpoints, but higher for imaging endpoints. Sensitivity and specificity were high. Only 3-4 Liver-Chips were necessary to detect an effect depending on the endpoint and effect size. The specifics of the experiment are found herein.

Food and Chemical Toxicology published new progress about Albumins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 110-99-6 belongs to class alcohols-buliding-blocks, name is 2,2′-Oxydiacetic acid, and the molecular formula is C4H6O5, COA of Formula: C4H6O5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Huixian published the artcileImmune characteristics of IgA nephropathy with minimal change disease, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is human IgA nephropathy minimal change disease; IgA nephropathy; MCD-IgAN; anti-glycan autoantibodies; galactose deficient IgA1; inflammation; minimal change disease.

IgA nephropathy (IgAN) has a high degree of heterogeneity in clin. and pathol. features. Among all subsets of IgAN, the pathogenesis of IgAN with minimal change disease (MCD-IgAN) remained controversial. We analyzed the clin. and pathol. characteristics of MCD-IgAN patients in a retrospective cohort. Patients diagnosed with IgAN, excluding MCD-IgAN, were randomly selected as controls. Levels of plasma galactose-deficient IgA1 (GdIgA1), IgG autoantibodies against GdIgA1, GdIgA1 deposition in the glomerulus, and inflammatory reactivity of circulating poly-IgA1 complexes to cultured mesangial cells were evaluated. Patients with MCD-IgAN had significantly higher levels of proteinuria and estimated glomerular filtration rate (eGFR), lower levels of albumin and urine blood cells, and milder histol. lesions by a light microscope compared to IgAN patients, which bears a resemblance to MCD. Lower levels of GdIgA1 (3.41 ± 1.68 vs. 4.92 ± 2.30μg/mL, p = 0.009) and IgG antiglycan autoantibodies (23.25 ± 22.59 vs. 76.58 ± 71.22 IU/mL, p < 0.001) were found in MCD-IgAN patients than those in IgAN controls. Meanwhile, weaker fluorescence intensities of both IgA and GdIgA1 were observed in the glomerulus of MCD-IgAN patients compared to those in IgAN patients. Furthermore, poly-IgA1 complexes from MCD-IgAN patients induced weaker inflammatory effects on cultured mesangial cells than those from IgAN patients in vitro. The results demonstrated that MCD-IgAN cases represent a dual glomerulopathy, namely, mild IgAN with superimposed MCD, which furthermore provides substantial evidence for the corticosteroids therapy in MCD-IgAN patients as the guidelines recommended. Frontiers in Pharmacology published new progress about Albumins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Al-Malki, Abdulrahman L. published the artcileStrigol1/albumin/chitosan nanoparticles decrease cell viability, induce apoptosis and alter metabolomics profile in HepG2 cancer cell line, Application of (S)-2-hydroxysuccinic acid, the main research area is hepatocellular carcinoma cell viability apoptosis chitosan nanoparticles metabolomics; Apoptosis; HepG2; Metabolomics; Nanoparticles; Strigol 1.

Hepatocellular carcinoma is one of the most common causes of cancer-related deaths globally. Bioavailable, effective and safe therapeutic agents are urgently needed for cancer treatment. This study evaluated the metabolomics profiling, anti-proliferative and pro-apoptotic effects of strigol/albumin/chitosan nanoparticles (S/A/CNP) on HepG2 cell line. The diameter of S/A/CNP was (5 ± 0.01) nm. The IC50 was 180.4 nM and 47.6 nM for Strigol1 and S/A/CNP, resp., after incubation for 24 h with HepG2 cells. By increasing the concentration of S/A/CNP, there was chromatin condensation, degranulation in the cytoplasm and shrinking in cell size indicating pro-apoptotic activity. Metabolomics profiling of the exposed cells by LC/MS/MS revealed that S/A/CNP up-regulated epigenetic intermediates (spermine and spermidine) and down-regulated energy production pathway and significantly decreased glutamine (P < 0.001). These findings demonstrated that S/A/CNP has anti-proliferative, apoptotic effects and modulate energetic, and epigenetic metabolites in the hepatocellular carcinoma cell line (HepG2). Biomedicine & Pharmacotherapy published new progress about Albumins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Application of (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Al-Hassan, Jassim M. published the artcileFraction B from catfish epidermal secretions kills pancreatic cancer cells, inhibits CD44 expression and stemness, and alters cancer cell metabolism, Computed Properties of 97-67-6, the main research area is anticancer Arius fraction B CD44 stemness metabolism pancreatic cancer; Fraction B; apoptosis; cancer metabolism; cancer stemness; catfish; pancreatic cancer.

Pancreatic ductal adenocarcinoma (PDAC) is the fourth leading cause of cancer related death in western countries. The successful treatment of PDAC remains limited. Author investigated the effect of Fraction B, which is a fraction purified from catfish (Arius bilineatus, Val.) skin secretions containing proteins and lipids, on PDAC biol. both in-vivo and in-vitro. Author report here that Fraction B potently suppressed the proliferation of both human and mouse pancreatic cancer cells in vitro and significantly reduced the growth of their relevant xenograft (Panc02) and orthotopic tumors (human Panc-1 cells) (p < 0.05). The Reverse Phase Protein Array (RPPA) data obtained from the tumor tissues derived from orthotopic tumor bearing mice treated with Fraction B showed that Fraction B altered the cancer stem cells related pathways and regulated glucose and glutamine metabolism The down-regulation of the cancer stem cell marker CD44 expression was further confirmed in Panc-1 cells. CBC and blood chem. analyses showed no systemic toxicity in Fraction B treated Panc-1 tumor bearing mice compared to that of control group. Author data support that Fraction B is a potential candidate for PDAC treatment. Frontiers in Pharmacology published new progress about Albumins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Computed Properties of 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts