Tag: 500-600

Reference of ABTS DiammoniumOn November 30, 2020 ,《Ethanol extracts from Cinnamomum camphora seed kernel: Potential bioactivities as affected by alkaline hydrolysis and simulated gastrointestinal digestion》 appeared in Food Research International. The author of the article were Zhang, Guohua; Yan, Xianghui; Wu, Shasha; Ma, Maomao; Yu, Ping; Gong, Deming; Deng, Shuguang; Zeng, Zheling. The article conveys some information:

The aim of the study was to evaluate the changes of potential bioactivities of ethanol extracts (EE) from Cinnamomum camphora seed kernel (CCSK) after alk. hydrolysis and simulated gastrointestinal digestion. The total phenolic and total flavonoid contents in EE decreased by 30.6%, 1%, 33% and 11.8% after hydrolysis and digestion, resp. The total saponins content decreased by 17% after hydrolysis while increased by 48% after digestion. The total condensed tannin contents increased by 70.3% and 17.2% after hydrolysis and digestion, resp. The 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), cupric ion reducing activity (CUPRAC), ferric reducing antioxidant power (FRAP) and metal chelating activity (MCA) were used to determine antioxidant activity. Overall, the changes of antioxidant activities by hydrolysis and digestion were consistent with the changes of their total phenolic and flavonoid contents. The α-amylase and α-glucosidase inhibitory activities in EE increased by 817% and 33.3% after digestion while decreased by 12.3% and 19% after hydrolysis, resp. Although the inhibitory activities of cholinesterase, tyrosinase and xanthine oxidase were decreased by hydrolysis and digestion, most of these activities were retained. These results showed that CCSK ethanol extracts had strong bioactivities and were reasonably stable to alkali and digestive enzymes. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Reference of ABTS Diammonium) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amines can be classified according to the nature and number of substituents on nitrogen. Aliphatic amines contain only H and alkyl substituents. Aromatic amines have the nitrogen atom connected to an aromatic ring.Important amines include amino acids, biogenic amines, trimethylamine, and aniline. Inorganic derivatives of ammonia are also called amines, such as monochloramine (NClH2).Reference of ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Tian, Qiaopeng; Dou, Xin; Huang, Lin; Wang, Lei; Meng, Di; Zhai, Lixin; Shen, Yu; You, Cuiping; Guan, Zhengbing; Liao, Xiangru published an article on January 15 ,2020. The article was titled 《Characterization of a robust cold-adapted and thermostable laccase from Pycnoporus sp. SYBC-L10 with a strong ability for the degradation of tetracycline and oxytetracycline by laccase-mediated oxidation》, and you may find the article in Journal of Hazardous Materials.Computed Properties of C18H24N6O6S4 The information in the text is summarized as follows:

A native laccase (Lac-Q) with robust cold-adapted and thermostable characteristics from the white-rot fungus Pycnoporus sp. SYBC-L10 was purified, characterized, and used in antibiotic treatments. Degradation experiments revealed that Lac-Q at 10.0 U mL-1 coupled with 1.0 mmol L-1 ABTS could degrade 100% of the tetracycline or oxytetracycline (50 mg L-1) within 5 min with a static incubation at 0 °C (pH 6.0). The presence of the Mn2+ ion inhibited the removal rate of tetracycline and oxytetracycline by the Lac-Q-ABTS system, and the presence of Al3+, Cu2+, and Fe3+ accelerated the removal rate of tetracycline and oxytetracycline by the Lac-Q-ABTS system. Furthermore, seven transformation products of oxytetracycline (namely TP 445, TP 431, TP 413, TP 399, TP 381, TP 367, and TP 351) were identified during the Lac-Q-mediated oxidation process by using UPLC-MS/MS. A possible degradation pathway including deamination, demethylation, and dehydration was proposed. Furthermore, the growth inhibition of Bacillus altitudinis SYBC hb4 and E. coli by tetracycline antibiotics revealed that the antimicrobial activity was significantly reduced after treatment with the Lac-Q-ABTS system. Finally, seven transformation products of oxytetracycline (namely TP 445, TP 431, TP 413, TP 399, TP 381, TP 367, and TP 351) were identified during the Lac-Q-mediated oxidation process by using UPLC-MS/MS. A possible degradation pathway including deamination, demethylation, and dehydration was proposed. These results suggest that the Lac-Q-ABTS system shows a great potential for the treatment of antibiotic wastewater containing different metal ions at various temperatures The experimental part of the paper was very detailed, including the reaction process of ABTS Diammonium(cas: 30931-67-0Computed Properties of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime.Typically the presence of an amine functional group is deduced by a combination of techniques, including mass spectrometry as well as NMR and IR spectroscopies. 1H NMR signals for amines disappear upon treatment of the sample with D2O. In their infrared spectrum primary amines exhibit two N-H bands, whereas secondary amines exhibit only one.Computed Properties of C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Ning, Qiqi; Wang, Yingying; Wang, Yilu; Tu, Fangming; Chen, Xiaodi; Chen, Qiming; Liu, Zhanmin published their research in Sensors and Actuators, B: Chemical on August 15 ,2022. The article was titled 《Development of an enhanced visual signal amplification assay for GSH detection with DNA-cleaving DNAzyme as a trigger》.Electric Literature of C18H24N6O6S4 The article contains the following contents:

Glutathione (GSH) plays a significant role in human health. Considering that dietary intake of GSH is an important way to keep GSH levels in the body, it is particularly essential to quantitate the supplemental content of GSH. In this study, an enhanced visual signal amplification assay for GSH detection in food with DNA-cleaving DNAzyme as a trigger was developed. The trigger contained a Trigger-enzyme strand (Pb2+ dependent DNAzyme sequence) and a Trigger-substrate strand. In the absence of GSH, DNAzyme was formed with Pb2+ induction and Trigger-substrate strand was cleaved to release the initiator sequence. Initiator sequence could initiate RCA reaction and generate abundant G-quadruplex sequences. After G-quadruplex/hemin DNAzyme was formed in the presence of G-quadruplex sequences, a visual signal could be produced by catalyzing ABTS. In the presence of GSH, Pb2+ would combine with GSH and there would not be following visual signal production Thus, GSH could be detected with a “”turn-off”” strategy and GSH concentration was neg. correlated with color change. Besides, Nb. BbvCI nicking endonuclease was introduced to improve the visual effect. The results could be qual. identified by the naked eye and quant. analyzed by spectrophotometry (Linearity range: 10 nM to 1 μM, LOD: 3.99 nM) with good selectivity and reliability. We also developed a smartphone-based visual anal. method to make the quant. anal. independent on a spectrophotometer (Linearity range: 10 nM to 0.5 μM, LOD: 8.17 nM). We believe that this assay showed a good potential for rapid and sensitive detection of GSH in food. The experimental process involved the reaction of ABTS Diammonium(cas: 30931-67-0Electric Literature of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Electric Literature of C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Mechri, Sondes; Jaballi, Imen; Ben Taheur, Fadia; Jabeur, Fadoua; Elloumi, Jihen; Bejar, Wacim; Mansour, Chalbia; Hajji, Mohamed; Fetoui, Hamadi; Mzoughi, Ridha; Chaieb, Kamel; Jaouadi, Bassem published an article in Waste and Biomass Valorization. The title of the article was 《Anti-Biofilm, Antioxidant and Cytotoxic Potential of F5, a Peptide Derived from Waste Generated During the Processing of the White Shrimp, Metapenaeus monoceros (Fabricius, 1798)》.Application In Synthesis of ABTS Diammonium The author mentioned the following in the article:

In previous research works, we have described the production of 7 kDa F5 peptide after a hydrolysis of the white shrimp, Metapenaeus monoceros (Fabricius, 1798) byproduct, using a serine alk. protease (SPVP) purified from Aeribacillus pallidus strain VP3. The present study aims to explore the antioxidative potentials of F5 peptide by both in vitro and in vivo assays. The anti-biofilm activity was performed, showing 50% inhibition at 2μg/mL, 3μg/mL, 19μg/mL, and 45μg/mL for Staphylococcus aureus, Escherichia coli, Bacillus cereus, and Pseudomonas aeruginosa, resp. Consistently, the antioxidative capacity was tested in vitro against 2,2′-azino-bis-(3-ethylbenz-thiazoline-6-sulfonic acid) (ABTS) cation radical, β-caroten-linoleic acid bleaching, chelating capacity of ferrous ion, and ferric reducing power assays. The cytotoxic effects of F5 peptide on the Human embryonic kidney HEK293 cells were subsequently tested. Remarkably, the F5 peptide was able to improve significantly HEK293 cell viability. To further assess this bioactivity, an in vivo study was performed on adult mice models. The animals were divided into three groups: controls, 100 mg and 200 mg of F5/kg per bodyweight. Indeed, the F5 peptide could prevent the lipid and protein oxidation damage in kidney cells, improving the antioxidative enzymic and non-enzymic capacities. In the experiment, the researchers used ABTS Diammonium(cas: 30931-67-0Application In Synthesis of ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Reduction of nitro compounds, RNO2, by hydrogen or other reducing agents produces primary amines cleanly (i.e., without a mixture of products), but the method is mostly used for aromatic amines because of the limited availability of aliphatic nitro compounds. Reduction of nitriles and oximes (R2C=NOH) also yields primary amines.Application In Synthesis of ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Quality Control of ABTS DiammoniumOn November 30, 2021 ,《Effect of ultrasound on mass transfer kinetics and phenolic compounds of apple cubes during osmotic dehydration》 appeared in LWT–Food Science and Technology. The author of the article were Ma, Youchuan; Yi, Jianyong; Bi, Jinfeng; Zhao, Yuanyuan; Li, Xuan; Wu, Xinye; Du, Qianqian. The article conveys some information:

This study investigated the impacts of ultrasound-assisted osmotic dehydration (UOD) with different frequency (40 kHz, 80 kHz, 40 + 80 kHz) and intensity (25 W/L, 50 W/L, 75 W/L) on the kinetics of mass transfer, phenolic losses and the antioxidant properties of apple cubes (8 mm). The mass transfer efficiency of solid gain (SG) was greater under dual-frequency (β = 0.413) than 40 kHz (β = 0.707) and 80 kHz (β = 0.793) under the same intensity. Moreover, the mass transfer efficiency of SG under 75 W/L 40 kHz UOD was higher than that of 25 W/L and 50 W/L UOD based on β values. Notably, the loss of phenolic content under 75 W/L UOD (18.9%) was substantially higher than that of the 25 W/L UOD treatment (1.2-1.8%). A UOD treatment of 50 W/L and 40 + 80 kHz is recommended to optimize mass transfer efficiency and phenolic retention of dehydrated apple cubes.ABTS Diammonium(cas: 30931-67-0Quality Control of ABTS Diammonium) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Halogenation, in which one or more hydrogen atoms of an amine is replaced by a halogen atom, occurs with chlorine, bromine, and iodine, as well as with some other reagents, notably hypochlorous acid (HClO). With primary amines the reaction proceeds in two stages, producing N-chloro- and N,N-dichloro-amines, RNHCl and RNCl2, respectively. With tertiary amines, an alkyl group may be displaced by a halogen.Quality Control of ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Lin, Zhi-Qi; Shao, Wei; Xu, Juan; Sheng, Guo-Ping published an article in Science of the Total Environment. The title of the article was 《Accurately quantifying the reductive capacity of microbial extracellular polymeric substance by mediated electrochemical oxidation method》.Recommanded Product: 30931-67-0 The author mentioned the following in the article:

The reductive capacity of microbial extracellular polymeric substances (EPS) plays important roles in environmental processes involved in heavy metal detoxification and organic contaminant degradation However, the crucial parameter to evaluate the reductive capacity of EPS, electron donating capacity (EDC) lacks a quant. approach. In this study, a novel mediated electrochem. oxidation (MEO) method was developed to investigate the EDCs of microbial EPS extracted from Shewanella oneidensis MR-1 (S. oneidensis MR-1), Escherichia coli (E. coli) and activated sludge. The results indicate that the MEO approach rapidly and accurately quantifies the EDCs of microbial EPS. S. oneidensis MR-1 EPS possessed the highest EDC value ascribed to their specific redox proteins components. EDCs of S. oneidensis MR-1 EPS were dependent on measurement conditions and increased with growing solution pH and applied potential. EDCs of S. oneidensis MR-1 EPS were depleted gradually during the redox reaction with irreversible oxidation of EPS. The reductive property of microbial EPS was accurately evaluated by quantifying the EDCs of EPS using the MEO approach, as well as their potential in environmental remediation.ABTS Diammonium(cas: 30931-67-0Recommanded Product: 30931-67-0) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Recommanded Product: 30931-67-0

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Jing, Yingjun; Diao, Yujia; Yu, Xueqing published an article on February 28 ,2019. The article was titled 《Free radical-mediated conjugation of chitosan with tannic acid: Characterization and antioxidant capacity》, and you may find the article in Reactive & Functional Polymers.Related Products of 30931-67-0 The information in the text is summarized as follows:

Chitosan (CS) is a natural biopolymer with versatile applications. In this work, CS was functionalized with tannic acid (TA) by a free radical grafting procedure to improve its antioxidant capacity. The resulting TA-conjugated CS (TA-CS) showed a high TA equivalent content of 267.1 ± 5.4 mg TAE/g. The formation of TA-CS was verified by UV-vis, FTIR, and 1H NMR analyses. Moreover, TA-CS showed a lower thermal stability and crystallinity than CS and exhibited a good water-solubility of 15.0 ± 0.3 mg/mL. The DPPH radical scavenging activity of TA-CS reached a maximum of 91.6%, which was 6.4-fold higher than that of CS. Similar results were also observed in ABTS and hydroxyl radical scavenging assays. Moreover, TA-CS showed a higher superoxide radical scavenging activity and ferrous ion chelating activity than both TA and CS. These results suggest that conjugating with TA is an available way to enhance the antioxidant capacity of CS. In the experimental materials used by the author, we found ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Related Products of 30931-67-0

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Gong, Xiaobei; Luo, Hao; Wu, Xing; Liu, Hao; Sun, Chengwu; Chen, Shicheng published an article in Indian Journal of Microbiology. The title of the article was 《Production of Red Pigments by a Newly Isolated Talaromyces aurantiacus Strain with LED Stimulation for Screen Printing》.Related Products of 30931-67-0 The author mentioned the following in the article:

Microbial pigments have been widely applied to printing in food, textile, and paper industries as a sustainable alternative to synthetic dyes. Herein, we isolated a novel Talaromyces aurantiacus strain with a strong ability to produce red pigments. We further studied pigment production conditions, stability, screen printing application, and bioactivities. Our results showed that sucrose was a favorable carbon source and the addition of L-histidine significantly enhanced the production of red pigments. Pigment production was strictly photo-regulated with effective wavelengths around 450 nm (blue light). We mixed the red pigments with cellulosic materials and explored their application potentials for screen printing on paper, cotton fabrics, and polymeric carriers. The printing d. was significantly improved from 0.3 to 0.7 by overlay printing. T. aurantiacus pigments could be stably stored at pH 5-11, temperature – 10 to 70°C, and redox potential – 200 to 300 mV. Moreover, the stable ranges were extended to pH 1-11 and temperature over 100°C after screen-printed on paper. The red pigments exhibited antioxidant activity toward 2,2′-Azinobis-(3-ethylbenzthiazoline-6-sulfonate) (IC50 10.4 mg L-1 in solution). Our results further indicated the red pigments by T. aurantiacus was environmentally friendly based on acetylcholinesterase activity assay. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Related Products of 30931-67-0

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

《Bee Pollen Extracts as Potential Antioxidants and Inhibitors of α-Amylase and α-Glucosidase Enzymes In Vitro Assessment》 was published in Journal of Apicultural Science in 2019. These research results belong to Daudu, Oluremi M.. Recommanded Product: ABTS Diammonium The article mentions the following:

The study was conducted to determine the antioxidant and anti-diabetic properties of bee pollen. The phenol content of extracts was 1.43, 2.04, 2.10 and 1.79 mg gallic acid g-1, resp. Total flavonoid content was 0.78, 1.39, 0.86 and 0.79 mg gallic acid g-1 resp. Bee pollen extracts have the potential to scavenge free radicals and lower blood glucose due to the presence of phenols and flavonoids. The aqueous-ethanol extract had the lowest IC50 for HRS and TAC, 0.53mg/mL and 0.25mg/mL resp., which depicts that this extract alleviates the destructive effect of hydroxyl radicals. Methanol extract had the lowest IC50 (0.21 mg/mL) for DPPH inhibition, hence it was able to scavenge the DPPH radicals. Ethanol extract had the lowest IC50 (0.04 mg/mL) for 2, 2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) inhibition, hence it can protect living cells from ABTS cations. The aqueous-ethanol extract displayed higher inhibition of α-amylase (4.51 mg/mL) while the aqueous extract exhibited a higher inhibition of α-glucosidase (0.60 mg/mL), which slows down the breakdown of disaccharides and reduces sugar buildup in the bloodstream. Bee pollen has potential antioxidative and antidiabetic activity. The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0Recommanded Product: ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by the Ritter reaction. In this method a tertiary alcohol reacts with hydrogen cyanide (HCN) in the presence of a concentrated strong acid; a formamide, RNH―CHO, is formed first, which then undergoes hydrolysis.Recommanded Product: ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Saha, Rituparna; Mukhopadhyay, Mainak published an article on January 31 ,2022. The article was titled 《Electrochemical analysis of Catechol polymerization in presence of Trametes versicolor laccase and the mediator ABTS》, and you may find the article in Enzyme and Microbial Technology.Formula: C18H24N6O6S4 The information in the text is summarized as follows:

The phenolic compound catechol has found various applications in the industry but is often discharged untreated in industrial effluents. Catechol is highly toxic and adversely affects the environment. This has increased extensive investigation into elucidating the effects of various synthetic elements or different biocatalysts on catechol, thereby leading the way to its bioremediation. Hence, an electrochem.-based study on catechol in the presence of the enzyme laccase could provide a basic understanding of the unique characteristics exhibited by catechol, thus facilitating a distinct perspective to its subsequent treatment and removal. The present study focuses on the electrochem. characterization of catechol based on the oxidation of laccase and the redox mediator 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). Catechol exhibited distinct electrochem. behavior across various concentrations The unique electroactive nature of ABTS assisted in the polymerization of catechol which was found to be concentration-dependent. Laccase produced a higher oxidation-reduction rate, thereby producing a much more stable condition for the polymerization of catechol. However, with the laccase-mediator system (LMS), the catechol polymerization rate was distinctly higher and more gradual with the enzyme utilizing the electroactive species produced by ABTS to increase the electron transfer and producing a combinatorial impact on the phenolic compound This study could rightly serve as the building block in developing future technologies like wastewater treatment and biosensors for catechol bioremediation. The experimental process involved the reaction of ABTS Diammonium(cas: 30931-67-0Formula: C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Many important products require amines as part of their syntheses. Methylamine is utilized in the production of the analgesic meperidine (trade name Demerol) and the photographic developer Metol (trademark), and dimethylamine is used in the synthesis of the antihistamine diphenhydramine (trade name Benadryl), the solvent dimethylformamide (DMF), and the rocket propellant 1,1-dimethylhydrazine. The synthesis of the insect repellent N,N-diethyl-m-toluamide (DEET) incorporates diethylamine while that of the synthetic fibre Kevlar requires aromatic amines.Formula: C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica