Characterization and thermal isomerization of (all-E)-lycopene

Journal of Agricultural and Food Chemistry
Munenori TakeharaMasaki Honda

Abstract

A large amount of (all-E)-lycopene was successfully purified from tomato paste using an improved method that included a procedure to wash crystalline powder with acetone. The total yield of the pure (all-E) form was at least 30%. The melting point of (all-E)-lycopene was determined to be 176.35 °C by differential scanning calorimetry (DSC) measurements. Bathochromic shifts were observed in the absorption maxima of all solvents tested (at most a 36 nm shift for λ2 in carbon disulfide, as was observed in hexane) and were accompanied by absorbance decreases, namely, a hypochromic effect, showing a higher correlation between the position and the intensity of the main absorption bands. This bathochromic shift was dependent upon the polarizability of the solvent rather than its polarity. The structure of (all-E)-lycopene in CDCl3 and C6D6 was identified on the basis of one- and two-dimensional nuclear magnetic resonance (NMR) spectra, including (1)H and (13)C NMR, homonuclear correlation spectroscopy ((1)H-(1)H COSY), heteronuclear multiple-quantum coherence (HMQC), and heteronuclear multiple-bond connectivity (HMBC). The rate constants of the decrease in (all-E)-lycopene with hexane and benzene were calculated to be 3.19 × 10(-5) an...Continue Reading

References

Nov 1, 1989·Archives of Biochemistry and Biophysics·P Di MascioH Sies
Dec 20, 1999·Journal of Agricultural and Food Chemistry·J P Yuan, F Chen
Nov 14, 2001·Phytochemical Analysis : PCA·B K IshidaB Chan
Jan 1, 2003·Bioscience, Biotechnology, and Biochemistry·Hiromitsu AokiNguyen Van Chuyen
Mar 21, 2003·Archives of Biochemistry and Biophysics·Ann CantrellFritz Böhm
Mar 1, 1965·Journal of the Chemical Society·P S MARCHANDB C WEEDON
Oct 31, 2003·Molecular Aspects of Medicine·Wilhelm Stahl, Helmut Sies
Apr 30, 2004·European Journal of Clinical Nutrition·M A HorvitzS A Tanumihardjo
Jul 13, 2004·Applied Microbiology and Biotechnology·M J López-NietoJ L Barredo
Dec 1, 2004·Journal of Industrial Microbiology & Biotechnology·Eiji Ishikawa, Hiroshi Abe
Nov 10, 2005·Journal of Agricultural and Food Chemistry·Catalin Moraru, Tung-Ching Lee
Nov 25, 2005·Bioscience, Biotechnology, and Biochemistry·Sanae KishimotoAkemi Ohmiya
Oct 15, 1941·Proceedings of the National Academy of Sciences of the United States of America·L ZechmeisterL Pauling
Aug 3, 2006·Journal of Agricultural and Food Chemistry·Stefano TizianiYael Vodovotz
Jul 16, 2008·International journal for vitamin and nutrition research. Internationale Zeitschrift für Vitamin- und Ernährungsforschung. Journal international de vitaminologie et de nutrition·Kati FröhlichVolker Böhm
Jul 6, 2010·Archives of Biochemistry and Biophysics·Paola PalozzaAssunta Catalano
Nov 18, 2010·Journal of Agricultural and Food Chemistry·Ines J P ColleMarc E Hendrickx

❮ Previous
Next ❯

Citations

Sep 30, 2015·Biochemical and Biophysical Research Communications·Munenori TakeharaMasaki Honda
Jun 4, 2015·Journal of Food Science·Masaki HondaYoshinori Inoue
Nov 27, 2014·Journal of Agricultural and Food Chemistry·Antonio J Meléndez-MartínezXiang-Dong Wang
Jun 12, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Masaki HondaMotonobu Goto
May 16, 2020·Critical Reviews in Analytical Chemistry·Gabriela Corrêa CarvalhoMarlus Chorilli
Dec 26, 2018·Proceedings of the National Academy of Sciences of the United States of America·Alkiviadis Orfefs ChatzivasileiouGregory Stephanopoulos
Sep 20, 2018·Applied Microbiology and Biotechnology·Tianmin WangXin-Hui Xing
Dec 8, 2020·Food Science & Nutrition·Jin Huang, Bodi Hui
Nov 12, 2014·Journal of Agricultural and Food Chemistry·Masaki HondaChitoshi Kitamura
Mar 25, 2015·Journal of Agricultural and Food Chemistry·Thomas HeymannMarcus A Glomb
Sep 19, 2019·Journal of Agricultural and Food Chemistry·Bin ShiTiangang Liu
Feb 24, 2015·Journal of Agricultural and Food Chemistry·Virginia HernándezPilar Flores

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Guang pu xue yu guang pu fen xi = Guang pu
Jian-feng LiJing-shan Shen
Journal of Agricultural and Food Chemistry
J K RuguttI M Warner
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Plamen N PenchevMarin N Marinov
© 2021 Meta ULC. All rights reserved