Composition of Lutein Ester Regioisomers in Marigold Flower Dietary Supplement and Herbal Tea Identification of Fatty Acid Glucose Esters as Os9BGlu31 Transglucosidase Substrates in Rice Flag Leaves Determination of Triazine Herbicides in Drinking Water by Dispersive Micro Solid Phase Extraction with Ultrahigh-Performance Liquid Jun 14 2016Black tartary buckwheat oils (BTBOs) were extracted from five major industrial tartary buckwheat cultivars grown under similar agronomical activities and environmental conditions These oils were characterized for the bioactive compounds containing fatty acids β-carotene lutein α- β- δ- and γ-tocopherol and for their antioxidant properties The total

Illicit Production of Cocaine

Abstract The predominant methods currently used for illicit production of cocaine are described For illicit natural cocaine (i e from coca leaf) this includes production of coca paste from coca leaf via both the solvent and acid extraction techniques purification of coca paste to cocaine base and conversion of cocaine base to cocaine hydrochloride

3 Solvent extraction has the advantage of not generating a lot of waste as the precipitation method However it requires high exchange area high cost with solvent recovery and high toxicity of extractants which limits the large-scale potential Advances in solvent extraction particularly with the novel extractants have given promising

Extraction is the most critical step to obtain bioactive compounds from FVW (Khoddami and others 2013) Ideal methods of extraction determine proper types and quantities of bioactive compounds that can be obtained from FVW (Smith 2003 Sasidharan and others 2011 Baiano 2014) Extraction methods may vary with respect to the targeted bioactive

The resulting half-ester has a free carboxyl function and may then be resolvable with a chiral base usually brucine: Other Methods of Resolution Qne of the major goals in the field of organic chemistry is the development of reagents with the property of chiral recognition such that they can effect a clean separation of enantiomers in one

The quality parameter of alkyl esters of fatty acids was checked in a variety of Italian olive oil samples In particular 34 samples of extra olive oils (EVOOs) from South Italy (Sicilian orchards) produced in the years 2014-2015 have been subjected to the analytical protocol dictated by the European Union for the determination of alkyl esters as an indicator of

Volume 15 Issue 3 :: Article Issues :: BioResources

A two-step extraction method was used to extract proteins from Caragana korshinskii Kom including a NaOH solution extraction followed by a water extraction A power-law model three-site kinetic extraction model and second-order model were utilized to investigate the mechanism of the water extraction process and the key factors affecting the protein yield

A process for extracting and isolating carotenoid esters or carotenoids in high purity from plants without the use of harmful organic solvents Zeaxanthin esters were isolated and purified from the berries of Lycium Chinese Mill (LCM berries) The esters isolated according to the invention contain substantially no isomerized double bonds

EP2665805B1 (en) 2011-01-17: 2019-11-13: India Glycols Limited: Single stage lutein ester extraction from tagetes species-marigold flower meal US9458476B2 (en) 2011-04-18: 2016-10-04: R J Reynolds Tobacco Company: Method for producing glycerin from tobacco US10150970B2 (en

A comparison of this two-stage process to a single-stage process without the pentose extraction was performed both with biomass and model compounds which indicated no pentose or furfural in the product stream and a marked molar yield decrease in LA yield from the presence of pentose sugars validating our initial hypothesis

Fuel consisting of methyl esters of fatty acids (FAMEs) and ethyl esters of fatty acids (FAEEs) also referred to as "biodiesel " is made from renewable farm products such as vegetable or animal oils fats or recycled cooking greases that are transesterified using methanol derived from fossil fuel or bioethanol from renewable resources (22 27)

Feb 18 2010Medium-chain triglycerides (MCTs) sunflower seed oil soybean oil rapeseed oil and n-hexane were used as co-solvents to promote supercritical carbon dioxide (SC-CO 2) extraction of lutein esters from marigold (Tagetes erecta L ) The steepest ascent method was used to determine the most effective co-solvent in improving the extraction yield followed by

Oct 10 2017Carotenoids are plant-derived pigment molecules that cannot be synthesized de novo by higher organisms These physiologically relevant compounds function as potent antioxidants and light screening compounds and their supplementation has been shown to ameliorate the progression of such diseases as age-related macular degeneration Hundreds

Jan 12 2012A single stage straight forward process for extraction and isolation of lutein ester from the dried petals of marigold flowers Tagetes species using the carbondioxide as the supercritical fluid was developed The pressure maintained for the extraction was up to 625 bar and at temperature up to 750 Centigrade Lutein ester of high strength and purity up to 70%

Carotenoids

Supplemental lutein and zeaxanthin: The Age-related Eye Disease Study 2 (AREDS2) failed to show an effect of supplemental lutein (10 mg/day) and zeaxanthin (2 mg/day supplementation for a median of 4 7 years) on the risk of developing cataract on the progression to severe cataract or to cataract surgery and on visual acuity

EP2665805B1 (en) 2011-01-17: 2019-11-13: India Glycols Limited: Single stage lutein ester extraction from tagetes species-marigold flower meal US9458476B2 (en) 2011-04-18: 2016-10-04: R J Reynolds Tobacco Company: Method for producing glycerin from tobacco US10150970B2 (en

H pluvialis is a good source of trans-astaxanthin acyl esters and it is widely used for astaxanthin products in the industrial perspective because it accumulates the highest levels of astaxanthin in nature Natural extract in H pluvialis was obtained by supercritical fluid extraction (sample 1) The Ast-E in the extract was converted to Ast

the extraction should have a low boiling point not react with the solute or other solvents not be toxic or highly flammable not miscible with water be inexpensive and should readily dissolve caffeine at room temperature A common liquid/liquid solvent pair for the extraction of caffeine is water-dichloromethane (Williamson 2011)

spinach extract to the top of the column As the extract drains onto the alumina the pigments should begin to separate into a yellow carotene band and a green chlorophyll band If a separation is observed add an additional 4 mL of hexane and continue collecting solvent in your waste solvent beaker until the yellow band reaches the

A single stage straight forward process for extraction and isolation of lutein ester from the dried petals of marigold flowers Tagetes species using the carbondioxide as the supercritical fluid was developed The pressure maintained for the extraction was up to 625 bar and at temperature up to 750 Centigrade Lutein ester of high strength and purity up to 70% was achieved for the

analysis of lutein and zeaxanthin in marigold supplement extract using the ultra fast LC "Prominence UFLC" with the SPD-M20A photodiode array detector Fig 1 shows the structures of lutein and zeaxanthin which reveals that these 2 compounds are structurally similar and in fact structural isomers

Supplemental lutein and zeaxanthin: The Age-related Eye Disease Study 2 (AREDS2) failed to show an effect of supplemental lutein (10 mg/day) and zeaxanthin (2 mg/day supplementation for a median of 4 7 years) on the risk of developing cataract on the progression to severe cataract or to cataract surgery and on visual acuity

A single stage straight forward process for extraction and isolation of lutein ester from the dried petals of marigold flowers Tagetes species using the carbondioxide as the supercritical fluid was developed The pressure maintained for the extraction was up to 625 bar and at temperature up to 750 Centigrade Lutein ester of high strength and purity up to 70% was achieved for the