Application of the memory effects in CAD spectra of deprotonated heterosides for fruit monoterpenyl glycoside analysis

1990

International audience

Analysis of fruit monoterpenyl glycosides by non destructive methods

1990

International audience

Structural „memory effects” influencing decompositions of glucose alkoxide anions produced from monoterpene glycoside isomers in tandem mass spectrom…

1989

Isomeric glycoconjugates have been distinguished using desorption negative-ion chemical ionization/tandem mass spectrometry (DNCI–MS/MS). The structure of the leaving terpene influences the orientation of consecutive decompositions during collisionally activated decomposition (CAD) of [M–H]− ions which pass through a glucose alkoxide intermediate ion. This apparent „memory effect” can be rationalized by considering the production of anion-induced dipole complexes.

Evidence and characterization of glycosidically bound volatile components in fruits

1988

International audience

Formation of Aroma by Hydrolysis of Glycosidically Bound Components

1992

SUMMARY Acid hydrolysis has been used in order to establish the presence of glycosidically bound components in fruits. During this treatment, rearrangement reactions of free monoterpene alcohols generally occur. This inconvenient may be avoided using enzymatic hydrolysis, however the specificity of enzymes requires the previous knowledge of the structures of compounds used as substrates in order to control the reaction. Several glycosidically bound components, glucosides, rutinosides and arabinoglucosides present in grapes and apricot were isolated, separated and identified using non destructive methods, MS-MS low energy CAD spectra and HPLC. s-D-glucosidase, α-L-rhamnosidase, α-L-arabinase…

Grape alcohol dehydrogenase .II. kinetic studies : mechanism , substrate , and coenzyme specificity

1987

International audience

Etude structurale des heterosides terpeniques du raisin

1989

National audience

Identification of passion fruit glycosides by gas chromatography/mass spectrometry

1998

International audience

Stereochemistry of linalol bounded in heterosides in Vitis vinifera cv Muscat d'Alexandrie

1993

Stoned fruit : apricot, plum, peach, cherry

1990

170 ref. chap. 2; International audience

Separation de glycosides d'alcools terpeniques diastereoisomeres par HPLC sur phase cyclodextrine liee

1992

National audience