Category: 121-79-9

Li, Hong published the artcileHemin loaded Zn-N-C single-atom nanozymes for assay of propyl gallate and formaldehyde in food samples, SDS of cas: 121-79-9, the publication is Food Chemistry (2022), 132985, database is CAplus and MEDLINE.

Single-atom nanozymes (SAzymes) show distinct advantages in catalytic activity and selectivity owing to their stability and special characteristic of maximum at. utilization. Inspired by the structure of natural horseradish peroxidase (HRP), we developed a simple method for specific determination of both Pr gallate (PG) and formaldehyde (HCHO) by utilizing the intrinsic peroxidase mimics activity of hemin (hem) loaded Zn-nitrogen-carbon single-atom nanozymes (Zn-N-C@hem SAzymes). Zn-N-C@hem was prepared via a salt-template strategy and self-assembly, where hemin exhibits enhancing peroxidase-like activity can catalyze oxidation of colorless PG to yellow product. Upon introduction of HCHO into Zn-N-C@hem/PG system, complete suppression of PG oxidation was showed, resulting in distinguished decrease in absorbance. The colorimetric sensors of PG and HCHO based on Zn-N-C@hem/PG were developed at their resp. linear range of concentration 1.25-200 mg/kg and 5-250 mg/kg. The practicability of the rapid anal. of PG and HCHO in food samples has been verified with reliable results.

Food Chemistry published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, SDS of cas: 121-79-9.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhang, Feihong published the artcileInhibitory effect of antioxidants on biodiesel crystallization: Revealing the role of antioxidants, Computed Properties of 121-79-9, the publication is Fuel (2021), 120782, database is CAplus.

Effect of six antioxidants (butylated hydroxytoluene, Bu hydroxyanisole, di-tert-butylhydroquinone, tert-Bu hydroquinone, Pr gallate, and pyrogallic acid) on crystallization properties of biodiesel was systematically investigated. Results showed that all the six antioxidants effectively inhibited biodiesel crystallization at low temperatures as reflected by the decrease of cold filter plugging point by 1 ∼ 3°C, solid fat content by 0.01 ∼ 2.30%, crystallization rate from 10^-4 to 10^-5 ∼ 10^-6 k/min, crystal size from 214 x 14 ∼ 357 x 43 to 71 x 14 ∼ 286 x 29 (length x width, μm x μm), the absolute values of crystallization enthalpy changes by 1.5 ∼ 5.5 J/g. The min. concentrations of antioxidants for biodiesel to reach the induction period (8 h) regulated by the European Union standard were 500 mg/kg for TBHQ, PG, and PY, 1000 mg/kg for BHA and DBHQ, and 2000 mg/kg for BHT, resp. Antioxidants were inserted between initial crystal nucleuses through hydrogen bonds. The large steric hindrance of antioxidants inhibited the clustering of initial crystal nucleuses, thus inhibiting the growth of Me ester crystals. Biodiesel with the six antioxidants all had the same crystalline form (two-dimensional flake crystals). The weaker inhibitory effect of BHA than the other five antioxidants which didn’t present significant difference in inhibiting biodiesel crystallization was because the methoxy group of BHA cannot form a hydrogen bond well with the carbonyl group of Me ester mol.

Fuel published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C13H9FO, Computed Properties of 121-79-9.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhao, Wei published the artcileEffects of guanidinoacetic acid and complex antioxidant supplementation on growth performance, meat quality, and antioxidant function of broiler chickens, Synthetic Route of 121-79-9, the publication is Journal of the Science of Food and Agriculture (2021), 101(9), 3961-3968, database is CAplus and MEDLINE.

This study was conducted to evaluate the effects of adding guanidinoacetic acid (GAA), or complex antioxidant (CA), or their combination, in diets on the growth performance, carcass traits, meat quality, and antioxidant capacity of broilers. A total of 192 25-day-old broilers were assigned to a 2 × 2 factorial design including two dietary supplements at two different levels, in which the main effects were the addition of GAA (0 or 600 mg kg^-1) and CA (0 or 150 mg kg^-1). This trial lasted for 18 days. Compared with the control group, the GAA group, CA group, and GAA + CA group, decreased feed conversion ratio by 7.02%, 6.58%, and 11.40%, resp. Guanidinoacetic supplementation increased eviscerated yield, pH_24h (P < 0.05). Complex antioxidant supplementation increased the a* values (P < 0.05). The combination of GAA and CA did not affect the carcass traits and meat quality. Guanidinoacetic acid alone and CA alone and combined with GAA and CA decreased the reactive oxygen species (ROS) level and malonaldehyde (MDA) content (P < 0.05), and the GAA + CA group had the lowest ROS level and MDA content of broilers. Dietary supplementation of GAA, CA or their combination had beneficial effects on growth performance and breast antioxidant capacity, and the combination of GAA and CA could exert a synergistic effect in improving antioxidant capacity.

Journal of the Science of Food and Agriculture published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C15H23BO2, Synthetic Route of 121-79-9.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Byun, Young Min published the artcileMechanical properties of carbon fiber-reinforced Al₂O₃ porous ceramics, Recommanded Product: Propyl 3,4,5-trihydroxybenzoate, the publication is Journal of the Korean Ceramic Society (2021), 58(3), 269-275, database is CAplus.

This study reports the improvement of the mech. properties of Al₂O₃ porous ceramics from particle-stabilized colloidal suspension with the addition of carbon fiber through direct foaming. The initial colloidal suspension of Al₂O₃ was partially hydrophobized by a surfactant, Pr gallate (2 wt%), to stabilize the wet foam used with the addition of carbon fiber from 2 to 8 wt% as reinforcement. The influence of carbon fiber on the air content, bubble size, pore size, and pore distribution were discussed in terms of the wet foam stability and the phys. properties of the porous ceramics. The mech. properties of the sintered porous samples were investigated by the Hertzian indentation test. The results show that the wet foam stability of more than 90% corresponds to the compressive load bearing capacity of 110 N using tungsten carbide ball with a radius of r = 7.93 mm and the elastic modulus of 114.3 MPa in the sintered sample with 2 wt% of carbon content.

Journal of the Korean Ceramic Society published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Recommanded Product: Propyl 3,4,5-trihydroxybenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Nguyen, Van Hai published the artcilePropyl gallate, Recommanded Product: Propyl 3,4,5-trihydroxybenzoate, the publication is Molbank (2021), M1201, database is CAplus.

The title compound, Pr gallate (III), is an important substance popularly used in the food, cosmetic and pharmaceutical industries. Current chem. syntheses of this compound are based on the acylation supported by thionyl chloride, DIC/DMAP or Fischer esterification using a range of homogenous and heterogenous catalysts. In this paper, an efficient, green, straightforward, and economical method for synthesizing Pr gallate using potassium hydrogen sulfate, KHSO₄, as the heterogenous acidic catalyst has been developed for the first time. In addition, this paper provides a comprehensive spectral dataset for the title compound, especially the new data on DEPT and 2D NMR (HSQC and HMBC) spectra which are not currently available in the literature.

Molbank published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Recommanded Product: Propyl 3,4,5-trihydroxybenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ferreira da Silveira, Tayse Ferreira published the artcileImpact of surfactant concentration and antioxidant mode of incorporation on the oxidative stability of oil-in-water nanoemulsions, SDS of cas: 121-79-9, the publication is LWT–Food Science and Technology (2021), 110892, database is CAplus.

The effect of the presence of surfactant micelles and of the mode of incorporation (pre-homogenization or post-homogenization) on the antioxidant efficiency of a homologous series of n-alkyl gallates phenolipids (G0, G3, G8, G12 or G16) was investigated in oil-in-water nanoemulsions. In both absence and presence of surfactant micelles, G12 and G16 were the best antioxidants. The effect of the mode of incorporation was modulated by the presence of surfactant micelles. In absence of surfactant micelles, G8 and G16 had higher efficiency when incorporated pre-homogenization, suggesting that the mode of incorporation promoted a distinct initial distribution of these compounds In contrast, in presence of surfactant micelles, the antioxidants could be incorporated in any phases without efficiency loss. These results demonstrate the important role of surfactant micelles in modulating the antioxidant efficiency and could be used by the food industry to optimize emulsion formulations.

LWT–Food Science and Technology published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, SDS of cas: 121-79-9.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Sun, Yuwen published the artcileDetermination of phenolic compounds in beverages by three-flow channel isocratic HPLC with electrochemical detections using a column-switching technique, Name: Propyl 3,4,5-trihydroxybenzoate, the publication is Chemical & Pharmaceutical Bulletin (2022), 70(1), 43-49, database is CAplus.

For the quant. anal. of phenolic compounds in beverage samples, a three-flow channel isocratic HPLC with electrochem. detection (3LC-ECD) system was devised using a column-switching technique. Phenolic compounds with significantly different hydrophobicity (the range of calculated log P: -0.77 to 3.02) were simultaneously measured to draw three chromatograms by the 3LC-ECD; the peaks of gallic acid (GA), protocatechuic acid (PCA), and gallocatechin (GC) were observed at electrochem. detector 1 (D1) within 42 min, the peaks of procyanidin B3 (B3), epigallocatechin (EGC), catechin (C), epicatechin (EC), procyanidin B2 (B2), Et gallate (Eg), and epigallocatechin gallate (EGCg) were observed at D2 within 50 min, and the peaks of epicatechin gallate (ECg), gallocatechin gallate (GCg), catechin gallate (Cg), Pr gallate (Pg), and resveratrol (RVT) were observed at D3 within 70 min. The relationships between the phenolic compound concentrations and their chromatog. peak heights gave good linearity with correlation coefficients of more than 0.998. The detection limits of the phenolic compounds by the 3LC-ECD ranged from 0.6 to 3.0μg/L. Further, the phenolic compound concentrations of com. available teas and wines were determined with a relative standard deviation (RSD) of less than 4.9% (n = 6), and their recoveries ranged from 91 to 109%. These results indicate that the 3LC-ECD system provided an accurate, precise, and specific determination of the phenolic compounds in beverages without affecting the matrixes derived from these samples.

Chemical & Pharmaceutical Bulletin published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C15H23BO2, Name: Propyl 3,4,5-trihydroxybenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

La, JinWook published the artcileEvaluation of solvent effects on the DPPH reactivity for determining the antioxidant activity in oil matrix, Category: esters-buliding-blocks, the publication is Food Science and Biotechnology (2021), 30(3), 367-375, database is CAplus and MEDLINE.

Reactivity of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical in methanol, ethanol, isopropanol, isooctane, and Et acetate, was evaluated to assess the antioxidant capabilities in medium chain triacylglycerol. DPPH loss values were obtained over 30 min, with sampling every 5 min. Even the same concentration of antioxidants showed different DPPH reactivity depending on solvent. In methanol, 5 min was enough for α-tocopherol to react with DPPH, whereas BHT did not react with DPPH even after 30 min. Gallate series showed higher DPPH reactivity than TBHQ, sesamol, or BHA in methanol, while lower reactivity in isooctane. Antioxidants in ethanol and isopropanol reacted with DPPH less efficiently compared to those in methanol, the exception being sesamol. DPPH reactivity of gallate series in isooctane was lower than that of sesamol, TBHQ, and α-tocopherol. Combinatorial usage of methanol and isooctane for DPPH reactivity could provide reliable information on the antioxidant capacities of chems. in edible oils.

Food Science and Biotechnology published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Category: esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Han, Yilin published the artcileTowards 3D Bioprinted Spinal Cord Organoids, Product Details of C10H12O5, the publication is International Journal of Molecular Sciences (2022), 23(10), 5788, database is CAplus and MEDLINE.

Three-dimensional (3D) cultures, so-called organoids, have emerged as an attractive tool for disease modeling and therapeutic innovations. Here, we aim to determine if boundary cap neural crest stem cells (BC) can survive and differentiate in gelatin-based 3D bioprinted bioink scaffolds in order to establish an enabling technol. for the fabrication of spinal cord organoids on a chip. BC previously demonstrated the ability to support survival and differentiation of co-implanted or co-cultured cells and supported motor neuron survival in excitotoxically challenged spinal cord slice cultures. We tested different combinations of bioink and crosslinked material, analyzed the survival of BC on the surface and inside the scaffolds, and then tested if human iPSC-derived neural cells (motor neuron precursors and astrocytes) can be printed with the same protocol, which was developed for BC. We showed that this protocol is applicable for human cells. Neural differentiation was more prominent in the peripheral compared to central parts of the printed construct, presumably because of easier access to differentiation-promoting factors in the medium. These findings show that the gelatin-based and enzymically crosslinked hydrogel is a suitable bioink for building a multicellular, bioprinted spinal cord organoid, but that further measures are still required to achieve uniform neural differentiation.

International Journal of Molecular Sciences published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Product Details of C10H12O5.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zheng, Jinjian published the artcileA Full Evaporation Static Headspace Gas Chromatography Method with Nitrogen Phosphorous Detection for Ultrasensitive Analysis of Semi-volatile Nitrosamines in Pharmaceutical Products, Safety of Propyl 3,4,5-trihydroxybenzoate, the publication is AAPS Journal (2022), 24(1), 23, database is CAplus and MEDLINE.

The recent detection of potent carcinogenic nitrosamine impurities in several human medicines has triggered product recalls and interrupted the supply of critical medications for hundreds of millions of patients, illuminating the need for increased testing of nitrosamines in pharmaceutical products. However, the development of anal. methods for nitrosamine detection is challenging due to high sensitivity requirements, complex matrixes, and the large number and variety of samples requiring testing. Herein, we report an anal. method for the anal. of a common nitrosamine, N-nitrosodimethylamine (NDMA), in pharmaceutical products using full evaporation static headspace gas chromatog. with nitrogen phosphorous detection (FE-SHSGC-NPD). This method is sensitive, specific, accurate, and precise and has the potential to serve as a universal method for testing all semi-volatile nitrosamines across different drug products. Through elimination of the detrimental headspace-liquid partition, a quantitation limit of 0.25 ppb is achieved for NDMA, a significant improvement upon traditional LC-MS methods. The extraction of nitrosamines directly from solid sample not only simplifies the sample preparation procedure but also enables the method to be used for different products as is or with minor modifications, as demonstrated by the anal. of NDMA in 10+ pharmaceutical products. The in situ nitrosation that is commonly observed in GC methods for nitrosamine anal. was completely inhibited by the addition of a small volume solvent containing pyrogallol, phosphoric acid, and isopropanol. Employing simple procedures and low-cost instrumentation, this method can be implemented in any anal. laboratory for routine nitrosamine anal., ensuring patient safety and uninterrupted supply of critical medications.

AAPS Journal published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C24H29N5O3, Safety of Propyl 3,4,5-trihydroxybenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics