Category: 929-77-1

Savchenko, L. published the artcileDetermination of the fatty acids composition of refined sunflower oil and possibility of its changing during storage period, Category: esters-buliding-blocks, the main research area is sunflower oil fatty acid storage.

Refined sunflower oil is an auxiliary component of many dosage forms made in pharmacy. For their preparation, pharmacies purchase oils from different manufacturers and have the right to use it throughout the shelf life. However, the question arises of maintaining the stability of the fatty acid composition of the oil because of the influence of various environmental factors. In previous studies, the authors investigated the change in the composition of basic fatty acids (FA) of sunflower oil during heating or long-term storage, but there are no studies of the full FA composition of sunflower oil, as well as an assessment of its dependence on the period of the oil using. The aim. Detailed study of the FA composition of refined sunflower oil from different manufacturers, assessment of the effect of the shelf life of the oil on its FA composition and its compliance with the requirements of the European Pharmacopoeia (EP). Materials and methods. The determination of the FA composition of seven samples of refined sunflower oil was carried out by gas chromatog. with a flame ionization detector using the Rt-2560 column (100 m x 0.25 mm x 0.20μm). Results. The anal. of seven samples of refined sunflower oil showed the presence of 24 FA in most of them. Polyunsaturated FA predominate among them with a percentage of 52.45-60.86%. The value of the fatty acids percentage in each groups (saturated, mono- and polyunsaturated fatty acids) are quite similar regardless of the oil shelf life at the time of the research. All test samples, except one, by the percentage content of the main FA correspond to EP requirements. The results of the quant. content of the main FA of sunflower oil determining (palmitic, stearic, oleic, and linoleic) also indicate a similar FA composition of the studied samples. Conclusions. The studied samples of sunflower oil refined in terms of the content of basic FAs meet the requirements of the EP. The obtained results indicate the high stability of the oil and the absence of a significant effect of the storage period on the FA composition

ScienceRise: Pharmaceutical Science published new progress about Food storage. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Szymanski, Marcin published the artcileComparison of the Chemical Composition and Antioxidant Activity of Essential Oils from the Leaves and Flowers of Sambucus nigra, Safety of Methyl docosanoate, the main research area is antioxidant essential oil leaf flower Sambucus.

Essential oils of Sambucus nigra were obtained by hydrodistillation and analyzed using the GC-MS technique, which led to the identification and quantification of 66 components from the leaves and 74 components from the flowers, accounting for 94.0 and 96.4% of the total components, resp. The main class of compounds present in the leaves were fatty acids and their derivatives: Me linoleate, palmitic acid, hydrocarbon tritetracontane, and an aromatic compound benzoic aldehyde. In the flowers there were hydrocarbons: tritetracontane and n-hexatriacontane, fatty acids and their derivatives: palmitic acid and linoleic acid, and alcs.: 2-methyl-3,15-octadecadienol and 2-hexyl-1-octanol. Among the dominant components of the essential oil of S. nigra flowers, there were also monoterpenes such as rose oxide, epoxylinalol, while the essential oil of the leaves contained a few compounds of monoterpenes in small amounts such as β-pinene and α-pinene. Antioxidant activity of the obtained essential oils was determined by the FRAP and DPPH assay techniques.

Pharmaceutical Chemistry Journal published new progress about Antioxidants. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Safety of Methyl docosanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Drinic, Zorica published the artcileEffect of pomegranate peel extract on the oxidative stability of pomegranate seed oil, Safety of Methyl docosanoate, the main research area is pomegranate peel seed oil oxidative stability; P-anisidine value; Peroxide value; Pomegranate peel extract; Pomegranate seed oil; Punicic acid; TBARS value.

Pomegranate seed oil is valuable source of bioactive compounds with health-beneficial effects, but it is sensitive to oxidation due to high content of PUFA. In order to improve stability of pomegranate seed oil, the influence of natural antioxidant (0.1% pomegranate peel extract) and a combination of synthetic antioxidant (0.01% butylhydroxytoluene) and pomegranate peel extract (0.05%) was investigated. The oxidation process was followed by monitoring fatty acid composition and measuring the quality and stability parameters of oil (acid value, peroxide value, anisidine value and thiobarbituric acid reactive substances value) during storage for 12 days at 65 0C. Furthermore, total phenolic content and DPPH radical scavenging activity was measured. Pomegranate peel extract as well as a combination of pomegranate peel extract and BHT can have a significant pos. impact (P < 0.05) on improvement of the quality and stability parameters of pomegranate seed oil. Furthermore, such activity was better than BHT used alone. Food Chemistry published new progress about Antioxidants. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Safety of Methyl docosanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kewlani, Pushpa published the artcileSaturated and polyunsaturated fatty acids rich populations of Prinsepia utilis Royle in Western Himalaya, COA of Formula: C23H46O2, the main research area is Prinsepia seed saturated polyunsaturated fatty acid DPPH antioxidant; altitude; antioxidant; edaphic factors; fatty acids.

The study aims to identify the fatty acid composition in Prinsepia utilis seeds collected from diverse populations of Western Himalaya, India. The seeds contained higher saturated fatty acid (SFA-43.09%; Average of all populations) followed by polyunsaturated fatty acid (PUFA – 29.57%) and monounsaturated fatty acid (MUFA – 25.53%), however variations among growing populations was measured. The correlation anal. reveals a significant (p < 0.05) neg. connection between 10-Octadecenoic acid Me ester (FA1), and altitude. Edaphic factors like available nitrogen showed significantly (p < 0.05) but the neg. correlation with cis-11-Eicosenoic acid, Me ester (FA10; p < 0.001), Docosanoic acid, Me ester (FA11; p < 0.05), Heptadecanoic acid, Me ester (FA14; p < 0.05), and Tricosanoic acid, Me ester (FA29; p < 0.05). Antioxidant activity did not show any variation in the seed oil of different populations but varied among the concentrations (5-50μL) used. IC50 values of DPPH activity was significantly (p < 0.05) varied connect ranged from 11.31-24.21μL/mL among the different populations. These variations in fatty acid composition and IC50 values of the DPPH activity can be one of the indicators for selecting a promising population that would be harnessed for its potential in nutraceuticals and cosmeceuticals industries. Journal of Oleo Science published new progress about Antioxidants. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, COA of Formula: C23H46O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Goswami, Lalit published the artcileA novel integrated biodegradation-microfiltration system for sustainable wastewater treatment and energy recovery, Quality Control of 929-77-1, the main research area is integrated biodegradation microfiltration system wastewater treatment energy recovery; Biodiesel production; Bioremediation; Ceramic membrane; Industrial wastewater treatment; Rhodococcus opacus.

This work assessed the treatment of wastewater generated from three different industries viz., paper and pulp, biomass gasification and dairy by biodegradation followed by membrane filtration. Batch biodegradation was first carried out using wastewater as the potential substrate for oleaginous Rhodococcus opacus with lipid accumulation intracellular; subsequently, a microfiltration system was applied to recover the bacterial biomass grown as well as for residual COD (COD) removal from the effluent. The combined process showed excellent results in terms of COD removal from the industrial wastewaters, with the values 56.8%, 46.1% and 68.9% for dairy, paper and pulp and biomass gasification wastewaters, resp., by biodegradation These values were further improved to 92.7%, 87.6% and 88.2%, resp., following the microfiltration step performed by employing a low-cost ceramic membrane. In addition, lipids accumulated by the bacterium were extracted and characterized for biodiesel production potential. Lipid characterization using 1H NMR confirmed the presence of saturated fatty acids. Gas chromatog. anal. of the transesterified lipids revealed the presence of Me palmitate and Me stearate. In addition, the estimated properties of the transesterified product affirmed its potential for biofuel application.

Journal of Hazardous Materials published new progress about Autoxidation. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Quality Control of 929-77-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Marakis, Georgios published the artcileFatty acid profile of processed foods in Greece with focus on trans fatty acids, Product Details of C23H46O2, the main research area is trans fatty acid processed food.

Abstract: The adverse health effects of trans fatty acids (TFA) are well recognized. The Commission Regulation (EU) 2019/649 specifies that foods should not contain more than 2 g of industrially produced TFA (i-TFA) per 100 g of fat. This study aimed to investigate the fatty acid profile, with focus on TFA and i-TFA, of foods widely consumed in Greece that are purported to contain high TFA concentrations Sweet and savoury (i.e. non-sweet), prepacked and non-prepacked (i.e. loose) processed foods (N = 140) were sampled. After lipid extraction, the fatty acid profile of each sample was determined by gas chromatog. Estimation of ruminant TFA (r-TFA) was based on butyric acid values. i-TFA was assessed after subtraction of r-TFA from total TFA. Both total and i-TFA contents of cakes, biscuits, croissants and doughnuts on average were low (< 2% of total fat), even though the saturated fat content of some products from these food groups was high. Pies and pastries made with puff and shortcrust pastry had the highest i-TFA content. About 15.7% of all samples had an i-TFA content that exceeded the 2% limit set in foods by the new Commission Regulation (EU) 2019/649. Meat products and French fries had i-TFA levels that did not exceed 1% of total fat. In view of the lack of data on TFA content of foods in Greece, these results highlight the necessity to improve their nutritional quality and provide guidance for planning future targeted inspections regarding the TFA content of foods. Journal fuer Verbraucherschutz und Lebensmittelsicherheit published new progress about Bakery cakes. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Product Details of C23H46O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ahad, Tehmeena published the artcileEffect of storage temperatures, packaging materials and storage periods on antioxidant activity and non-enzymatic browning of antioxidant treated walnut kernels, Recommanded Product: Methyl docosanoate, the main research area is walnut kernel packaging material storage effect nonenzymic browning antioxidant; 2, 2-Diphenyl-1-picryhydrazyl (DPPH); Folin–Ciocalteu’s reagent; Gallic acid; Total flavonoids; Total phenolic content.

The effect of antioxidants, temperature, packaging materials and storage periods was investigated in medium shelled walnut kernels (Hamdan) variety. The kernels were mech. dried (40°C), standardized and treated with butylated hydroxylanisole and butylated hydroxytoluene in combination at concentrations (0.015%) each. Then packed in laminates under vacuum and high d. polyethylene non vacuum packaging materials and stored under ambient and refrigerated temperature conditions (4°C) for a period of 9 mo. All tested extracts possessed appreciable antioxidant potential. The bioactive compounds were identified by using chromatog. techniques (GC-MS and LC-MS). Before storage dried kernels exhibited high values of total phenols (31.23 mgGAE/gm), DPPH (215.13μmol TAEg-1) and low value of non enzymic browning (0.63 OD). Walnuts packed in laminates under vacuum and refrigerated conditions exhibited higher values of total phenols, total flavonoids, DPPH and subsequently lower change in non-enzymic browning reactions throughout the experiment After 90 days of storage maximum loss in total phenols and DPPH value and highest value of non enzymic browning was observed in high d. polyethylene non vacuum packaging materials under ambient temperature The major phenolic components identified by GC/MS and LC/MS anal. were linoleic acid, oleic acid, hexadecanoic acid, epicatechin, quercetin, epicatechin and ellagic acid resp. This study validates the antioxidant potential of the walnut kernels and the pos. relationship between total phenolic content, total flavonoids and antioxidant activity.

Journal of Food Science and Technology (New Delhi, India) published new progress about Antioxidants. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Recommanded Product: Methyl docosanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Yadav, Khushbu published the artcileEffect of synthetic and aromatic amine antioxidants on oxidation stability, performance, and emission analysis of waste cooking oil biodiesel, Safety of Methyl docosanoate, the main research area is aromatic amine antioxidant waste cooking oil biodiesel oxidation stability; Additives; Biodiesel; DPA antioxidant; Diesel engine; Induction time; NO reduction; Rancimat method.

In the present study, an attempt was made to improve the oxidation stability of biodiesel by adding antioxidants to waste cooking oil biodiesel, and their impact on performance and emissions was analyzed. Two types of antioxidants were chosen for the anal.: an aromatic amine antioxidant, diphenylamine (DPA), and synthetic oxidants, tert-butylhydroxyquinone (TBHQ) and pyrogallol (PY). All the antioxidants were added to the biodiesel at doses of 200 ppm and 500 ppm to evaluate their effect. The oxidation stability was found as per the ASTM standard by mixing 500 ppm antioxidants for all three antioxidant-treated biodiesel blends. DPA yielded similar results as TBHQ, although PY had a better oxidation stability according to the Rancimat test. Gas chromatog. and mass chromatog. were also performed on the neat biodiesel. Performance and emission tests were performed on the antioxidant-treated biodiesel blends and diesel. The brake thermal efficiency of the tested fuel increased by 9.8%, 6.9%, and 15.88% when the DPA, TBHQ, and PY antioxidants were added to the test fuel compared to that of the test fuel without added antioxidant. The brake specific energy consumption of the test fuel decreased by 9.05% with DPA, 7.03% with TBHQ, and 14.08% with PY compared to that of the test fuel without antioxidant. The NOx emissions of the antioxidant-treated test fuels were reduced by 14.65% with DPA, 11.22% with TBHQ, and 23.10% with PY compared to those of the test fuel without antioxidants. Addnl., the aromatic amine antioxidant (DPA) was found to be effective in enhancing the performance and lowering the exhaust emissions compared to diesel for unmodified diesel engines.

Environmental Science and Pollution Research published new progress about Antioxidants. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Safety of Methyl docosanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Diantina, S. published the artcileSeed viability and fatty acid profiles of five orchid species before and after ageing, Application In Synthesis of 929-77-1, the main research area is seed viability fatty acid profile orchid species ageing; Epiphytic Dendrobium; fatty acid methyl esters (FAMEs); gas chromatography (GC); seed lipids; seed storage; terrestrial orchids.

Changes in seed lipid composition during ageing are associated with seed viability loss in many plant species. However, due to their small seed size, this has not been previously explored in orchids. We characterized and compared the seed viability and fatty acid profiles of five orchid species before and after ageing: one tropical epiphytic orchid from Indonesia (Dendrobium strebloceras), and four temperate species from New Zealand, D. cunninghamii (epiphytic), and Gastrodia cunninghamii, Pterostylis banksii and Thelymitra nervosa (terrestrial). Seeds were aged under controlled laboratory conditions (3-mo storage at 60% RH and 20°C). Seed viability was tested before and after ageing using tetrazolium chloride staining. Fatty acid Me esters from fresh and aged seeds were extracted through trans-esterification, and then analyzed using gas chromatog.-mass spectrometry. All species had high initial viability (>80%) and experienced significant viability loss after ageing. The saturated, polyunsaturated, monounsaturated and total fatty acid content decreased with ageing in all species, but this reduction was only significant for D. strebloceras, D. cunninghamii and G. cunninghamii. Our results suggest that fatty acid degradation is a typical response to ageing in orchids, albeit with species variation in magnitude, but the link between fatty acid degradation and viability was not elucidated. Pterostylis banksii exemplified this variation; it showed marked viability loss despite not having a significant reduction in its fatty acid content after ageing. More research is required to identify the effect of ageing on fatty acid composition in orchids, and its contribution to seed viability loss.

Plant Biology (Berlin, Germany) published new progress about Aging, plant. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Application In Synthesis of 929-77-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Bhaskar, K. published the artcileAnalysis of Cymbopogon Citratus, Pinus sylvestris and Syzygium cumini biodiesel feedstocks for its fatty acid composition, Quality Control of 929-77-1, the main research area is biodiesel feedstock fatty acid branching combustion.

Rapid depletion of fossil fuel and increased demand for petroleum products in energy and transportation sector motivated the researchers to find a substitution for petroleum diesel. Biodiesel is one among the alternate to this crisis. Biodiesel is a combined mixture of fatty acid alkyl esters obtained by the reaction of triglycerides of vegetable or animal origin with alc. in the presence of a catalyst. The fatty acid profile influences the overall properties of the biodiesel. The properties of individual fatty acid depend on the occurrence of double bonds, fatty acid chain length and branching. Better understanding of the fatty acid composition and correlating the fuel properties is of utmost importance in improving the optimal performance. In the present study, feedstocks of Cymbopogon citratus, Pinus sylvestris and Syzygium cumini is analyzed for its fatty acid composition study using Gas Chromatog. assisted with mass spectrometry. Based on GC-MS Anal., fifteen types of fatty acids in Cymbopogon citratus, Pinus sylvestris and Syzygium cumini oil Me esters were analyzed and defined; all these esters are amalgamations of saturated and unsaturated fatty acids. The variation in fatty acid compositions affects the properties of the esters. GC-MS synthesis showed that Me, Et esters free from dirt for the three feedstocks. Few impurities like mainly mono-, di- and triglycerides were found.

Materials Today: Proceedings published new progress about Amalgamation. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Quality Control of 929-77-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics