Tag: 500-600

《Effect of simultaneous dual-frequency ultrasound aided ethanolic pretreatment on drying kinetics, bioactive compounds, antioxidant activity, and physicochemical properties of apple slices using pulsed vacuum dryer》 was published in Journal of Food Process Engineering in 2020. These research results belong to Amanor-Atiemoh, Robert; Zhou, Cunshan; Mujumdar, Arun; Osae, Richard; Taiye Mustapha, Abdullateef; Wahia, Hafida; Sampson, Gilbert; Amoa-Owusu, Abigail; Ma, Haile. Category: thiazole The article mentions the following:

This work aims at investigating effect of different pretreatments and varied temperature on the drying kinetics, bioactive compounds, antioxidant activity, microstructure and functional group of apple slices using pulsed vacuum dryer. Pretreated apple slices (Ethanol, US + W, and US + E) dried at varied temperature (60, 70, and 80°C) were analyzed to determine total phenolic content (TPC), total flavonoid content (TFC), 1,1-diphenyl-2-picrylhydrazyl (DPPH+), 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid color, microstructure and FT-IR spectroscopy. The findings revealed that US + E pretreatment significantly decreased drying time. US + E pretreatment retained TPC, TFC, DPPH+ and ABTS+ than Ethanol, US + W, and control and was further corroborated by the observed peaks as revealed by the FT-IR spectroscopy. However, drying often leads to a reduction in quality parameters as well as degradation of nutritional components of the apple. Novel pretreatment techniques like ultrasonic aided ethanolic pretreatment preceding to apple drying provides an added advantage over conventional drying methods in that it reduces dehydration time as a result of faster moisture removal, lowers energy consumption, improves process efficiency leading to industrial competiveness and it also preserves the nutritional and sensorial parameters of dried apple slices. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Category: thiazole) 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.Category: thiazole

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

Meng, Shuaiqi; Guo, Jia; Nie, Kaili; Schwaneberg, Ulrich; Tan, Tianwei; Xu, Haijun; Liu, Luo published an article on February 28 ,2019. The article was titled 《High throughput screening method for engineering P450 towards terminal hydroxylation of fatty acids》, and you may find the article in Journal of Biobased Materials and Bioenergy.Recommanded Product: 30931-67-0 The information in the text is summarized as follows:

Terminal ω-hydroxy fatty acids are important industrial precursors for the synthesis of polyhydroxy fatty acids, nylons, and lactones. The cytochrome P 450 monooxygenases are able to catalyze hydroxylation of fatty acids for synthesis of terminal ω-hydroxy fatty acids. Directed evolution is the promising strategy to engineer the P 450 and shift its regioselectivity towards the terminal position. In this article, a high throughput screening method to detect terminal ω-hydroxy fatty acids for identifying P 450 variants with selectivity for terminal oxidation was developed and validated. A ω-hydroxy fatty acids specific fatty alc. oxidase (FAO) from Candida tropicalis was applied to quant. detect the products. The formation of hydrogen peroxide during the process of oxidation of ω-hydroxy fatty acids is coupled with horse radish peroxidase (HRP) for color reaction with the chromogenic substrate of 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid; ABTS) in 96 multi-well plates. The FAO-ABTS system was successfully applied to the detect the P 450 BM3 mutant capable of catalyzing the terminal ω-hydroxylation of pentadecanoic acid and palmitic acid. The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0Recommanded Product: 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. The reaction of alkyl halides, R―X, where X is a halogen, or analogous reagents with ammonia (or amines) is useful with certain compounds. Not all alkyl halides are effective reagents; the reaction is sluggish with secondary alkyl groups and fails with tertiary ones. Its usefulness is largely confined to primary alkyl halides (those having two hydrogen atoms on the reacting site).Recommanded Product: 30931-67-0

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

《Adsorption of caffeic acid on chitosan powder》 was written by Liudvinaviciute, Dovile; Rutkaite, Ramune; Bendoraitiene, Joana; Klimaviciute, Rima; Zambzickaite, Greta. HPLC of Formula: 30931-67-0 And the article was included in Polymer Bulletin (Heidelberg, Germany) on April 30 ,2021. The article conveys some information:

Abstract: Adsorption of caffeic acid (CA) on chitosan (CH) powder from aqueous solution has been investigated to obtain insoluble CA-CH complex powders having different amount of CA. The pseudo-second kinetic model and the Langmuir, Freundlich and Dubinin-Radushkevich adsorption models were used to describe the kinetic and equilibrium adsorption of CA on CH. With the increase of adsorption temperature, the rate of adsorption increased while the amount of adsorbed CA decreased. The Langmuir adsorption model predicted that adsorption of CA takes place on the ionized amino groups of CH. However, with the increase of adsorption temperature the ion-exchange between carboxylic groups of CA and amino groups of CH became moderately difficult. The thermodn. characteristics of adsorption have been evaluated. CA-CH complex formation was confirmed by FT-IR spectroscopy. With increasing amount of adsorbed CA the CA-CH powder was becoming more hydrophobic. 2,2′-Azinobis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS) assay confirmed that CA retained the antioxidant activity when immobilized on chitosan power. In the experiment, the researchers used ABTS Diammonium(cas: 30931-67-0HPLC of Formula: 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Left-handed and right-handed forms (mirror-image configurations, known as optical isomers or enantiomers) are possible when all the substituents on the central nitrogen atom are different (i.e., the nitrogen is chiral). With amines, there is extremely rapid inversion in which the two configurations are interconverted.HPLC of Formula: 30931-67-0

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

《In vitro bioaccessibility and activity of Greek oregano (Origanum vulgare L. ssp. hirtum (link) Ietswaart) compounds as affected by nitrogen fertilization》 was written by Seczyk, Lukasz; Krol, Beata; Kolodziej, Barbara. Related Products of 30931-67-0 And the article was included in Journal of the Science of Food and Agriculture on April 30 ,2020. The article conveys some information:

Greek oregano is a culinary and medicinal herb native to the Mediterranean region; however nowadays it is cultivated in many regions all over the world. It is commonly used as a spice for flavoring food products and in various traditional medicine applications. This study investigated the effect of nitrogen fertilization at 0-150 kg N ha-1 on the potential bioaccessibility and activity of Greek oregano compounds For this purpose the total phenolic content, rosmarinic acid content, and antioxidant activities of the raw material, as well as digested fractions, were determined Nitrogen fertilization had a neg. influence on the phenolic content and antioxidant activity of raw material; however, its effect on the potential bioaccessibility varied depending on the dose. The highest potential bioaccessibility and activity was determined for plants fertilized with 30 kg N ha-1. For the gastric and intestinal phases of digestion, the potential bioaccessibility percentages were 39.5% and 29.6% for total phenolics, 53.1% and 11.2% for rosmarinic acid content, 45.2% and 44.4% for antiradical activity against 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 39.2% and 27.2% for antiradical activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 50.2% and 23.4% for reducing power, resp. The results showed that nitrogen fertilization is an important factor determining the in vitro bioaccessibility of Greek oregano compounds Furthermore, the nutraceutical potential of herbs, in term of the bioaccessibility of bioactive compounds, may be optimized during plant cultivation by applying an accurate nitrogen level. The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0Related Products of 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. In organic chemistry, amines are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia (NH3), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or aryl group (these may respectively be called alkylamines and arylamines; amines in which both types of substituent are attached to one nitrogen atom may be called alkylarylamines).Related Products of 30931-67-0

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

Synthetic Route of C18H24N6O6S4On May 31, 2022, Zhang, Xiaowei; Ren, Xiangrui; Zhao, Xiaoyan; Liu, Hongkai; Wang, Meng; Zhu, Yunping published an article in Journal of the American Oil Chemists’ Society. The article was 《Stability, structure, and antioxidant activity of astaxanthin crystal from Haematococcus pluvialis》. The article mentions the following:

Crystallized anthaxanthin was prepared through the cleaning crystallization method and the stabilities during thermal, lighting, and pH treatment, and antioxidant activities in vitro were evaluated. The structural characterizations of astaxanthin crystal were verified by 1H, 13C NMR, and XRD anal. The stability data showed that the astaxanthin crystal was more sensitive to heat, light, and pH compared to oleoresin. The sucrose had no outstanding influence on the astaxanthin crystal, while the stability of astaxanthin oleoresin slightly increased with the increase of sugar concentration The XRD and NMR spectra elucidated that the astaxanthin crystal was all trans structure. The astaxanthin crystal showed the dominant 1,1′-diphenyl-2-picrylhydrazyl (IC50 18.65μmol L-1), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt +(21.1μmol L-1), •OH (IC50 49.46μmol L-1) and ferric reducing antioxidant power (IC50 81.60μmol L-1) activities. The investigated results would be helpful for improving the development of astaxanthin crystal in food products. In the experimental materials used by the author, we found ABTS Diammonium(cas: 30931-67-0Synthetic Route of C18H24N6O6S4)

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.Synthetic Route of C18H24N6O6S4

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

COA of Formula: C18H24N6O6S4On March 31, 2019, Xiang, Qisen; Liu, Xiufang; Liu, Shengnan; Ma, Yunfang; Xu, Chunqing; Bai, Yanhong published an article in Innovative Food Science & Emerging Technologies. The article was 《Effect of plasma-activated water on microbial quality and physicochemical characteristics of mung bean sprouts》. The article mentions the following:

The efficacy of nonthermal plasma-activated water (PAW) in the decontamination of mung bean sprouts was evaluated in this work. After being treated with PAW for 30 min, the populations of total aerobic bacteria and total yeasts and molds on mung bean sprouts were decreased by 2.32- and 2.84- log10 CFU/g, resp. The PAW treatment had no significant effect on the antioxidant potential of mung bean sprouts as shown by using 2,2-diphenyl-1-picrylhydrazyl free radical (DPPH•) scavenging activity assay, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) method, and ferric reducing antioxidant power (FRAP) assay (p > 0.05). Addnl., the PAW treatment caused no significant changes in the total phenolic and flavonoid contents, nor the sensory characteristics of mung bean sprouts (p > 0.05). Reactive species such as nitrates, nitrites, and H2O2 were generated in PAW, which presumably contributed to the disinfection efficacy of PAW. These data show that PAW can be used as a promising nonthermal technol. for the control of microbial contamination in sprouts. Edible sprouts are common food ingredients across the world. However, sprouts can be contaminated by pathogenic microorganisms, which may result in health risks to humans. Recently, PAW has been shown to be a safe and effective method for food surface sanitation. However, the application of PAW in the microbial control for sprouts is less investigated. In this study, the influences of PAW on the microbial load, chem. and sensory quality of mung bean sprouts were investigated for the first time. The results showed that PAW could effectively inactivate bacteria and yeasts and molds on mung bean sprouts without resulting in significant changes in the antioxidant capacities, total phenolic and flavonoid contents, and sensory characteristics of mung bean sprouts. These data indicated that PAW can be used as a promising nonthermal technol. for reducing microbial populations on sprouts. In the experiment, the researchers used ABTS Diammonium(cas: 30931-67-0COA of Formula: C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.COA of Formula: C18H24N6O6S4

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

《Phytochemical composition and biological activity of Neurada procumbens L. growing in southern Algeria》 was published in Journal of Food Processing and Preservation in 2020. These research results belong to Chelalba, Imane; Benchikha, Naima; Begaa, Samir; Messaoudi, Mohammed; Debbeche, Hanane; Rebiai, Abdelkrim; Youssef, Fadia S.. HPLC of Formula: 30931-67-0 The article mentions the following:

Neurada procumbens L. (Neuradaceae) is one of the most popular plants in the province of El-Oued in south-eastern Algeria. This study aimed to determine the antioxidant effectiveness of the 80% methanol extract of the aerial parts of the plant via the study of three-way antioxidant activity namely, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), Catalase activity (CAT), and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity assays in addition to examining its inhibitory capacity on the proliferation of hepatic (HepG2) and colon cancer (HCT116) cells. Chem. profiling of the major constituents of its extract was tentatively done using LC-MS in addition to quant. determination of phenols, flavonoids, and chem. mineral elements by Inductively coupled plasma-optical emission spectrometry technique (ICP-OES). Practical applications : UHPLC/MS profiling resulted in the tentative identification of 14 compounds including fatty acids, flavones, flavonoids and sesquiterpenes. ICP-OES technique showed that Algerian N. procumben represents a potential source for essential macronutrient like Na, Fe, Ca, and K, it is also a rich source of phenolic compounds evidenced by its high total phenol content (56.23 mg GAE/g extract) and high total flavonoid content (30.10 mg RE/g extract). It also revealed a significant antioxidant potential in DPPH, CAT, and ABTS assays with EC50 equals to 75.84 mg TE/g extract, 136.55 mg eq. AG/g and 92.06 mg TE/g extract, resp., with no cytotoxic effect on hepatic and colon cancer cells revealing its relative safety. Thus, it can be concluded that N. procumbens L., acts as a promising source of antioxidants owing to its richness with phenolic compounds The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0HPLC of Formula: 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. The reaction of alkyl halides, R―X, where X is a halogen, or analogous reagents with ammonia (or amines) is useful with certain compounds. Not all alkyl halides are effective reagents; the reaction is sluggish with secondary alkyl groups and fails with tertiary ones. Its usefulness is largely confined to primary alkyl halides (those having two hydrogen atoms on the reacting site).HPLC of Formula: 30931-67-0

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

Safety of ABTS DiammoniumOn May 15, 2021 ,《Excited state electronic structures and photochemistry of different oxidation states of 2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS)》 appeared in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy. The author of the article were Ji, Feixiang; Guo, Yurong; Wang, Mengqi; Wu, Zibo; Shi, Yanan; Zhao, Xiaoying; Wang, Haiyuan; Feng, Xia; Zhao, Guangjiu. The article conveys some information:

The mol. structures of 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), were calculated by using time-dependent d. functional theory (TDDFT) model with M062X method with 6-311G (d, p) basis set. In this work, the ABTS were theor. investigated from the geometric structure, the energy levels of the LUMO (LUMO) and the HOMO (HOMO), the energy level gap ΔEHOMO-LUMO of the mol. ground state, excited stated properties and the electronic absorption spectra of different oxidation states. We studied the energy levels of LUMO and HOMO of ABTS in different oxidation states. Frontier MO anal. can provide insight into the nature of excited states. ABTS was synthesized from N-ethylaniline by total synthesis. Then, we measured the UV-Vis spectra of ABTS before and after being oxidized by K2S2O8. The calculated electronic structures and photochem. properties of different oxidation state of ABTS were in accordance with the exptl. result. This work demonstrates the relationship between the electronic structures and photochem. of different oxidation states ABTS hence paves the way for the rationally synthesis and deepen understanding of the photophys. properties of ABTS materials. After reading the article, we found that the author used ABTS Diammonium(cas: 30931-67-0Safety of ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. In organic chemistry, amines are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia (NH3), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or aryl group (these may respectively be called alkylamines and arylamines; amines in which both types of substituent are attached to one nitrogen atom may be called alkylarylamines).Safety of ABTS Diammonium

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

In 2019,Journal of Food and Nutrition Research (Bratislava, Slovakia) included an article by Godocikova, Lucia; Ivanisova, Eva; Noguera-Artiaga, Luis; Carbonell-Barrachina, Angel A.; Kacaniova, Miroslava. Reference of ABTS Diammonium. The article was titled 《Biological activity, antioxidant capacity and volatile profile of enriched Slovak chocolates》. The information in the text is summarized as follows:

Different kinds and types of chocolates produced in Slovakia with various fruit and nut enrichments were analyzed regarding total polyphenols, flavonoids and phenolic acids contents using spectrophotometric methods and their volatile profile was analyzed using gas chromatog.-mass spectrometry. The method with 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and ferric reducing power method (FRAP) were used to measure antioxidant activity. Plain dark chocolate without any enrichment made by a traditional process contained the highest number of total polyphenols and phenolic acids and also had the highest antioxidant activity. Pos. correlation was observed between antioxidant activity and total contents of phenolic compounds, flavonoids and phenolic acids. The enrichment with different kinds of fruits did not increase the number of bioactive compounds or antioxidant capacity of chocolates but created more attractive sensory profiles due to the presence of new volatile compounds In the experimental materials used by the author, we found ABTS Diammonium(cas: 30931-67-0Reference of ABTS Diammonium)

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.Reference of ABTS Diammonium

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

Quality Control of ABTS DiammoniumOn October 15, 2019 ,《Development of antimicrobial and antioxidant electrospun soluble potato starch nanofibers loaded with carvacrol》 was published in International Journal of Biological Macromolecules. The article was written by Fonseca, Laura Martins; Cruxen, Claudio Eduardo dos Santos; Bruni, Graziella Pinheiro; Fiorentini, Angela Maria; Zavareze, Elessandra da Rosa; Lim, Loong-Tak; Dias, Alvaro Renato Guerra. The article contains the following contents:

In this study, a method was developed to encapsulated carvacrol in nanofibers from soluble potato starch. The carvacrol was added in starch solutions at various concentrations (0, 20, 30 and 40% volume/volume) and electrospun into fibers. The morphol., size distribution, thermal stability, FT-IR spectra, relative crystallinity (RC) and antioxidant of the electrospun fibers were analyzed. For mech. properties and antimicrobial activities evaluation electrospun nonwovens were obtain. The carvacrol-loaded nanofibers showed homogeneous morphol. and average diameters ranging from 73 to 95 nm. The carvacrol encapsulated in the nanofibers had greater thermal stability than the free carvacrol. FT-IR anal. showed interactions between starch and carvacrol. The RC of the nanofibers was approx. 40%. The electrospun nonwovens mech. properties did not present significant differences (p < 0.05). The 40% carvacrol-loaded nanofibers exhibited higher antioxidant activity with 83.1% of inhibition. The electrospun nonwoven loaded with 30% carvacrol resulted in 89.0% reduction of Listeria monocytogenes, 68.0% for Salmonella Typhimurium, 62.0% for Escherichia coli and 49.0% for Staphylococcus aureus. These electrospun nonwovens sustained antimicrobial activity for at least 30 days against S. aureus. The starch nanofibers are promising materials for application as a vehicle for carvacrol release in antimicrobial and antioxidant food packages. In the experimental materials used by the author, we found ABTS Diammonium(cas: 30931-67-0Quality Control of ABTS Diammonium)

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.Quality Control of ABTS Diammonium

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