Tag: M.W=150-200

Esquivel-Fajardo, Edgar A.; Martinez-Ascencio, Eduardo U.; Oseguera-Toledo, Miguel E.; Londono-Restrepo, Sandra M.; Rodriguez-Garcia, Mario E. published the artcile< Influence of physicochemical changes of the avocado starch throughout its pasting profile: Combined extraction>, Reference of 492-62-6, the main research area is Na calcium amylopectin potassium avocado behavior; C-type starch; Hexagonal and orthorhombic structures; Isolation process; Lamellae; Mineral composition.

This work focused on studying the effect of lamellae presence on the pasting profile of isolated avocado starch (C-type) obtained by a combined mech. and ultrasonic process. Inductively Couple Plasma indicates that this starch is rich in P, K, Na, and Ca. This starch exhibits the most cryst structure reported so far. The correlation between the morphol. and structural properties throughout its pasting profile explains its apparent viscosity behavior. Granules exhibit a non-conventional irregular morphol. with sizes ranging from 35 to 40μm in their long side. DSC reveals endothermal transitions at 68°C and 119°C associated with the nanocrystals solvation and amylose-lipid complex, respectivley. After gelatinization, the presence of lamellae originated from the partial fragmentation of the crystals. The pasting end exhibited a combined behavior between custard and hydrogel. This correlation could be considered a new methodol. to understand the pasting behaviors in any starch.

Carbohydrate Polymers published new progress about Avocado. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Reference of 492-62-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gu, Haiping; Foong, Shin Ying; Lam, Su Shiung; Yue, Xiaochen; Yang, Jun; Peng, Wanxi published the artcile< Characterization and potential utilization of extracts and pyrolyzates from Jasminum nudiflorum Lindl. Bark>, Reference of 699-12-7, the main research area is potential utilization extract pyrolyzate Jasminum nudiflorum bark characterization.

Utilization of lignocellulosic biomass is increasingly important. Jasminum nudiflorum Lindl. (JNL) is a widely cultivated landscape plant in China. To evaluate the chem. components, pyrolysis characteristics as well as the potential values of JNL bark for utilization, the components were extracted using methanol, ethanol, and benzene/ethanol (2:1, volume/volume) and pyrolyzed from room temperature to 300°C, resp. Many components were detected in the extracts and the pyrolyzates of JNL bark and their chem. properties were analyzed. The compounds identified in the extracts and the pyrolyzates of JNL bark included acids, aldehydes, alcs., esters, ketones, aromatics, saccharides, olefins, and nitrogen-containing compounds Some of the identified compounds, such as urs-12-en-28-al, 3-(acetyloxy)-, (3.beta.)-, 5-hydroxymethylfurfural, and vanillin, are widely used in the medical, energy, and food industries. The pyrolysis of JNL bark using thermogravimetric analyzer showed the highest reaction rate occurred at between 200 and 300°C where the maximum mass loss was observed According to the Coats-Redfern method, the calculated apparent activation energy (E) and pre-exponential factor (A) of the pyrolysis process of JNL bark were 52.04 kJ mol-1 and 3.14 x 105 min-1, resp. This research provides information on the components and pyrolysis characteristics of JNL bark, which shows great potential for application in medical, food, and chem. industries.

Journal of Analytical and Applied Pyrolysis published new progress about Activation energy. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Reference of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yao, Hongyan; Wang, Yongsheng; Razi, Maryam Kargar published the artcile< An asymmetric Salamo-based Zn complex supported on Fe3O4 MNPs: a novel heterogeneous nanocatalyst for the silyl protection and deprotection of alcohols under mild conditions>, Reference of 699-12-7, the main research area is hexamethyldisiloxane alc heterogeneous zinc complex catalyst trimethylsilylation green chem; trimethylsilyl ether preparation heterogeneous zinc complex catalyst deprotection; alc preparation green chem; iron oxide support salamo zinc complex preparation thermal stability.

A magnetic asym. Salamo-based Zn complex (H2L = salen type di-Schiff bases)-supported on the surface of modified Fe3O4 (Fe3O4@H2L-Zn) as a new catalyst was designed and characterized via numerous anal. techniques such as FT-IR spectroscopy, XRD, EDS, ICP-AES, SEM, TEM, TGA and VSM. An efficient and sustainable synthetic protocol were presented for the synthesis of silyl ether substructures via the silyl protection of alcs. under mild conditions. The synthetic protocol involved a two-component solvent-free reaction between various hydroxyl-bearing substrates and hexamethyldisilazane (HMDS) as an inexpensive silylating agent using Fe3O4@H2L-Zn MNPs as a magnetically separable, recyclable and reusable heterogeneous catalyst. Fe3O4@H2L-Zn MNPs were also applied for the removal of silyl protecting groups from hydroxyl functions using water in DCM under green conditions. The catalyst demonstrated good to excellent catalytic yield efficiency for both the reactions compared to the com. metal-based catalysts under green conditions for a wide range of substrates.

RSC Advances published new progress about Alcohols Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Reference of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yan, Jing-Kun; Wu, Li-Xia; Qiao, Ze-Ru; Cai, Wu-Dan; Ma, Haile published the artcile< Effect of different drying methods on the product quality and bioactive polysaccharides of bitter gourd (Momordica charantia L.) slices>, Category: alcohols-buliding-blocks, the main research area is drying polysaccharide bitter gourd antioxidant antidiabetic; Bioactivity; Bitter gourd (Momordica charantia L.); Drying method; Physicochemical property; Polysaccharide.

In this study, three drying methods, namely, hot-air drying, freeze drying (FD), and IR radiation drying (ID), were applied to dry bitter gourd (Momordica charantia L.) slices. Results showed that the drying methods had significant influences on appearance, color, rehydration ratio, and microstructure of dried bitter gourd. FD provided high-quality dried bitter gourd products due to the uniform honeycomb network and less collapsed structure. Three water-soluble bitter gourd polysaccharides (BPS-H, BPS-F, and BPS-I) were obtained from the bitter gourd dried using the three drying methods. The three polysaccharides exhibited similar preliminary structural characteristics with different monosaccharide compositions and mol. weights BPS-I obtained from ID-dried bitter gourd had higher sugar and uronic acid contents than BPS-H and BPS-F. BPS-I exhibited stronger antioxidant activities and bile acid-binding capacity in vitro than BPS-H and BPS-F. Moreover, BPS-F and BPS-I showed significant α-amylase inhibitory activities in vitro.

Food Chemistry published new progress about Air drying process. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Froiio, Francesca; Ginot, Lorianne; Paolino, Donatella; Lebaz, Noureddine; Bentaher, Abderrazzak; Fessi, Hatem; Elaissari, Abdelhamid published the artcile< Essential oils-loaded polymer particles: preparation, characterization and antimicrobial property>, Application In Synthesis of 78-70-6, the main research area is essential oil polymer particle antimicrobial; Escherichia coli; Eudragit RS100; antimicrobials; bergamot essential oil; nanoparticles; nanoprecipitation; sweet orange essential oil.

In the last few years, essential oils (EOs) derived from plants have aroused great interest due to their well-known antimicrobial activity. Unfortunately, they present several limitations in their use, such as photosensitivity, temperature sensitivity, high volatility, and poor water solubility The encapsulation technique represents a good solution to these problems and ensures protection of the functional properties of essential oils. In this work, bergamot essential oil (BEO) and sweet orange essential oil (OEO) loaded-Eudragit RS 100 (EuRS100) nanoparticles (NPs) were prepared by using the nanopptn. technique. We obtained nanoparticles characterized by a mean diameter of 57 to 208 nm and a pos. surface charge (39 to 74 mV). The antibacterial activity of the obtained systems against Escherichia coli was in vitro investigated. We demonstrated that both orange and bergamot essential oils were successfully encapsulated and our nanoparticles have good antibacterial activity. Finally, in order to evaluate the potential applicability of OEONps to prolong fresh orange juice shelf-life, survival of E. coli during a storage period of one week at 25°C was investigated: Orange essential oil-loaded nanoparticles (OEONPs) have been able to prolong the orange juice shelf life.

Polymers (Basel, Switzerland) published new progress about Antimicrobial agents. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Application In Synthesis of 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Diacci, Chiara; Abedi, Tayebeh; Lee, Jee Woong; Gabrielsson, Erik O.; Berggren, Magnus; Simon, Daniel T.; Niittylae, Totte; Stavrinidou, Eleni published the artcile< Diurnal in vivo xylem sap glucose and sucrose monitoring using implantable organic electrochemical transistor sensors>, Category: alcohols-buliding-blocks, the main research area is Populus xylem glucose sucrose organic electrochem transistor sensor homeostasis; Bioelectronics; Biotechnology; Plant Physiology.

Bioelectronic devices that convert biochem. signals to electronic readout enable biosensing with high spatiotemporal resolution These technologies have been primarily applied in biomedicine while in plants sensing is mainly based on invasive methods that require tissue sampling, hindering in-vivo detection and having poor spatiotemporal resolution Here, we developed enzymic biosensors based on organic electrochem. transistors (OECTs) for in-vivo and real-time monitoring of sugar fluctuations in the vascular tissue of trees. The glucose and sucrose OECT-biosensors were implanted into the vascular tissue of trees and were operated through a low-cost portable unit for 48h. Our work consists a proof-of-concept study where implantable OECT-biosensors not only allow real-time monitoring of metabolites in plants but also reveal new insights into diurnal sugar homeostasis. We anticipate that this work will contribute to establishing bioelectronic technologies as powerful minimally invasive tools in plant science, agriculture and forestry.

iScience published new progress about Biosensors. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Santiago, Marina; Sachdev, Shivani; Arnold, Jonathon C.; McGregor, Iain S.; Connor, Mark published the artcile< Absence of entourage: terpenoids commonly found in Cannabis sativa do not modulate the functional activity of Δ9-THC at human CB1 and CB2 receptors>, SDS of cas: 78-70-6, the main research area is Cannabis terpenoids tetrahydrocannabinol CB1 CB2 receptor; THC; cannabinoid receptor; entourage effect; phytocannabinoid; signaling; terpenoid.

We examined six common terpenoids alone, and in combination with cannabinoid receptor agonists, on CB1 and CB2 signaling in vitro. Potassium channel activity in AtT20 FlpIn cells transfected with human CB1 or CB2 receptors was measured in real time using FLIPR membrane potential dye in a FlexStation 3 plate reader. Terpenoids were tested individually and in combination for periods up to 30 min. Endogenous somatostatin receptors served as a control for direct effects of drugs on potassium channels. Alpha-Pinene, β-pinene, β-caryophyllene, linalool, limonene and β-myrcene did not change membrane potential in AtT20 cells expressing CB1 or CB2, or affect the response to a maximally effective concentration of the synthetic cannabinoid CP55,940. The presence of individual or combination of terpenoids did not affect the hyperpolarization produced by Δ9-THC. To investigate possible effect on desensitization of CB1 responses, all six terpenoids were added together with Δ9-THC and signaling measured continuously over 30 min. Terpenoids did not affect desensitization, after 30 min control hyperpolarization recovered by 63% -6% in the presence of terpenoids recovery was 61% -5%. None of the six of the most common terpenoids in Cannabis directly activated CB1 or CB2, or modulated the signaling of phytocannabinoid agonist Δ9-THC.

Cannabis and Cannabinoid Research published new progress about Behavior. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, SDS of cas: 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Rashidnejad, Hamid; Kordi, Mohammad Anvar; Pesyan, Nader Noroozi; Allahyari-devin, Maryam; Frashchi, Alireza Hajabbas; Ramezanitaghartapeh, Mohammad published the artcile< Cascade Synthesis of 1,4-Butanediol Monomesylate Glycoconjugates: Anticancer Candidates for Leukemia>, Formula: C6H12O6, the main research area is butanediol monomesylate glycoconjugate antitumor agent leukemia.

Acascade synthesis protocol for glycosides of 1,4-butanediol monomesylate, as anticancer drug candidates, is proposed. All obtained compounds are characterized by FT-IR, 1H and 13C NMR spectroscopy technique after separation by column chromatog. Cytotoxicity of the obtained glucosides and galactosides of 1,4-butanediol monomesylate on K562 human erythroleukemia cell line and normal peripheral blood mononuclear cells (PBMCs) is also investigated. Compared to the commerical anticancer drugs such as busulfan and doxorubicin, these compounds indicate promising results against the test cells. It is suggested that these new anticancer agents can be a potential replacement for the current drugs since they have relatively convenient synthetic procedure and higher effectiveness.

Pharmaceutical Chemistry Journal published new progress about Antitumor agents. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Formula: C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Man Kadayat, Tara; Eun Kim, Dong; Bong Lee, Sang; Jung, Kyungjin; Eun Park, Sang; Hong, Ji-Ye; Kim, Jina; Shrestha, Aarajana; Kim, Dong-Su; An, Hongchan; Kim, Nayeon; Lee, Su-Jeong; Kwon, Sugyeong; Kim, Suhui; Yeon Hwang, Jun; Kim, Shinae; Hahn, Dongyup; Choi, Hyukjae; Nam, Sang-Jip; Hyun Jeon, Yong; Jin Hwang, Jung; Jin Cho, Sung; Chin, Jungwook published the artcile< Antioxidative and anti-inflammatory activity of psiguadial B and its halogenated analogues as potential neuroprotective agents>, Quality Control of 4396-13-8, the main research area is psiguadial B halo derivative preparation antiinflammatory antioxidant neuroprotective; Anti-inflammatory effect; Antioxidative effect; Neuroprotective agent; Psiguadial B; Reactive oxygen species; Short synthetic route.

Psiguadial B (I, R = H), and its fluoro-, chloro-, and bromo-derivatives I (R = F, Cl, Br, resp.) were synthesized using a sodium acetate-catalyzed single step coupling of three components: β-caryophyllene , diformylphloroglucinol, and benzaldehyde. These compounds efficiently and dose-dependently decreased H2O2-induced cell death, a quant. marker of cell death, in primary cultures of mouse cortical neurons. Psiguadial B also decreased neuronal death and accumulation of ROS induced by FeCl2 in cortical cultures. The in vitro effects of these compounds in lipopolysaccharide (LPS)-induced expression of nitric oxide (NO), and TNF-α and IL-6 by suppressing the NF-κB pathway in immune cells demonstrated their antioxidative and anti-inflammatory activity. The present findings warrant further research on the development of psiguadial B-based neuroprotective agents for the treatment of neurodegenerative diseases, acute brain injuries and immunol. disorders.

Bioorganic Chemistry published new progress about Anti-inflammatory agents. 4396-13-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H6O5, Quality Control of 4396-13-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nikoorazm, Mohsen; Ghorbani, Farshid; Ghorbani-Choghamarani, Arash; Erfani, Zahra published the artcile< Mild and highly efficient method for the oxidation of sulfides and oxidative coupling of thiols catalyzed by Fe3O4@MCM-41@VO-SPATB as efficient and magnetically recoverable nanocatalyst>, Name: 2-(Phenylthio)ethanol, the main research area is sulfide oxidation thiol coupling immobilized ferric oxide silica catalyst.

The use of oxo vanadium complex with s-propyl-2-aminobenzothioate ligand immobilized onto functionalized magnetic nanoporous MCM-41(Fe3O4@MCM-41@VO-SPATB) as efficient and magnetically recoverable nanocatalyst for oxidation of sulfides into sulfoxides and oxidative coupling of thiols into disulfides using H2O2 as green oxidant is presented. This method provides much improved modification of oxidation reactions in terms of mild reaction conditions, short reaction time and good-to-excellent yields of products. Another important feature of this method is the ability to reuse the magnetite nanocatalyst for several times with no loss of its catalytic activity.

Journal of the Iranian Chemical Society published new progress about Green chemistry. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Name: 2-(Phenylthio)ethanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts