Screening of liver acetone powders in the resolution of 1-phenylethanols and 1-phenylpropanols derivatives

Solı́s, Aida; García, S.; Pérez, Herminia I.; Manjarrez, Norberto; Luna, Héctor

doi:10.1016/j.tetasy.2008.01.041

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…The crude product was purified by column chromatography using n -hexane/ethyl acetate (9:1) as eluent. All spectral data of the compounds 1d–f were in agreement with those described in the literature [ 42 ].…”

Section: Methodssupporting

confidence: 84%

“…The enantioenriched alcohols 1b , 1c , 1e and 1f obtained from the bromodesilylation reactions (section 3.4.1) were submitted to chiral GC and HPLC analysis, and the values found for retention times were in agreement with enantiopure samples and those described in the literature for enantioenriched compounds [ 42 , 43 , 44 , 45 ]. The absolute configuration of compounds 2b , 2c , 2e and 2f were attributed by analogy of those found to its bromide derivatives.…”

Section: Methodssupporting

confidence: 61%

“…The enantioenriched bromides 1b , 1c , 1e and 1f were submitted to chiral GC and HPLC analysis, and the retention times were compared with those described in the literature [ 42 , 43 , 44 , 45 ]. Thus, absolute configuration of enantioenriched aryltrimethylsilyl ( S )-alcohols and ( R )-acetates were determined by analogy to the results found for the bromophenyl ( S )-alcohols.…”

Section: Resultsmentioning

confidence: 99%

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Lipase-Catalyzed Kinetic Resolution of Aryltrimethylsilyl Chiral Alcohols

2011

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Lipase-catalyzed kinetic resolution of aryltrimethylsilyl chiral alcohols through a transesterification reaction was studied. The optimal conditions found for the kinetic resolution of m- and p-aryltrimethylsilyl chiral alcohols, led to excellent results, high conversions (c = 50%), high enantiomeric ratios (E > 200) and enantiomeric excesses for the remaining (S)-alcohol and (R)-acetylated product (>99%). However, kinetic resolution of o-aryltrimethylsilyl chiral alcohols did not occur under the same conditions applied to the other isomers.

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Section: Methodssupporting

confidence: 84%

Section: Methodssupporting

confidence: 61%

Section: Resultsmentioning

confidence: 99%

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Lipase-Catalyzed Kinetic Resolution of Aryltrimethylsilyl Chiral Alcohols

2011

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Valorization of Chicken Viscera as Natural Raw Material Source: Application to Hydrolysis of Fatty Esters for Sewage Treatment

Melais,

Aribi-Zouioueche,

Riant

2024

Appl Biochem Biotechnol

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Chicken viscera" constitute very abundant domestic wastes interestingly investigated in the present paper. The e ciency of this crude slaughter co-product of high protein component, as biocatalyst, for the hydrolysis of fatty acid esters was reported and that, without any pre-treatment. The crude Chicken Intestines Powder (CIP) has shown a high reactivity for the hydrolysis of fatty esters. Two biocatalyst preparations were independently explored for the bioresolution of sec-phenyl alkyl carbinol esters: the CIP preparation and the crude Chicken Intestines Acetone Powder CIAP preparation. The last one has shown good catalytic activity during the bio-hydrolysis in biphasic medium. Furthermore, the direct hydrolysis of milk fat using CIAP (500 mg) reveals the elimination of fats present in 50 ml of treated milk. These results open up very interesting prospects for the use of this biowaste for the treatment of milk fat. Statement Of NoveltyWe have exploited a particularly interesting biomass, the "chicken viscera", in enzymatic catalysis, for the hydrolysis of fatty acid esters. The extraction procedure is simple and ts perfectly into a green chemistry process. Two extracts were tested. The extracts are reactive in enzymatic hydrolysis, and they are also effective in removing fat from fresh milk, which is particularly useful and valuable in the treatment of wastewater from dairies and oil mills.

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Valorization of chicken viscera as natural raw material source: Application to hydrolysis of fatty esters for sewage treatment.

Melais

Aribi‐Zouioueche

2023

Preprint

View full text Add to dashboard Cite

"Chicken viscera" constitute very abundant domestic wastes interestingly investigated in the present paper. The efficiency of this crude slaughter co-product of high protein component, as biocatalyst, for the hydrolysis of fatty acid esters was reported and that, without any pre-treatment. The crude Chicken Intestines Powder (CIP) has shown a high reactivity for the hydrolysis of fatty esters. Two biocatalyst preparations were independently explored for the bioresolution of sec-phenyl alkyl carbinol esters: the CIP preparation and the crude Chicken Intestines Acetone Powder CIAP preparation. The last one has shown good catalytic activity during the bio-hydrolysis in biphasic medium. Furthermore, the direct hydrolysis of milk fat using CIAP (500 mg) reveals the elimination of fats present in 50 ml of treated milk. These results open up very interesting prospects for the use of this biowaste for the treatment of milk fat.

show abstract

Screening of liver acetone powders in the resolution of 1-phenylethanols and 1-phenylpropanols derivatives

Cited by 3 publications

References 10 publications

Lipase-Catalyzed Kinetic Resolution of Aryltrimethylsilyl Chiral Alcohols

Lipase-Catalyzed Kinetic Resolution of Aryltrimethylsilyl Chiral Alcohols

Valorization of Chicken Viscera as Natural Raw Material Source: Application to Hydrolysis of Fatty Esters for Sewage Treatment

Valorization of chicken viscera as natural raw material source: Application to hydrolysis of fatty esters for sewage treatment.

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