geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Absolute configuration of octanol derivatives in apple fruits


, : Absolute configuration of octanol derivatives in apple fruits. Phytochemistry (Oxford) 43(1): 145-149

In extracts obtained by liquid-liquid extraction and enzymatic hydrolysis from five apple cultivars (Renao; Bedan; Peau de Chien; Noel des Champs; Red Delicious), chiral evaluation of free and glycosidically bound octane-1,3-diol and 5(Z)-octene-1,3-diol, as well as ethyl 3-hydroxyoctanoate and ethyl 5(Z)-3-hydroxyoctenoate, was performed by multidimensional gas chromatography (MDGC), combining a polar achiral column (DB-Wax) with a chiral main column (2,3-di-O-acetyl-6-O-tert. butyldimethylsilyl-beta-cyclodextrin/OV 1701). Comparison of retention times of synthesized optically-enriched reference compounds with isolated diols and hydroxyesters, revealed the (R)-configuration for the free diols in cvs. Renao, Bedan, Peau de Chien and Noel des Champs and the (R)-configuration for the bound diols in cvs Bedan, Peau de Chien and Noel des Champs, exhibiting enantiomeric excesses (ees) greater than 99%. (R)-hydroxyesters (ee gt 99%) were detected in cvs. Noel des Champs and Red Delicious.

US$19.90

PMID: 8987509

DOI: 10.1016/0031-9422(96)00215-4


Other references

Brooks G.; Idson B., 1990: Immunology concepts and skin relationships. Journal of the Society of Cosmetic Chemists 41(4): 249-257

Aly K O., 1986: Spa treatment an attempt at overall therapy fitness inspired care of the sick model at tallmogarden sweden. Tidsskrift For Den Norske Laegeforening: 339-341

Keng, S-Ling.; Waddington, E.; Lin, X.Bernice.; Tan, M.Su.Qing.; Henn-Haase, C.; Kanter, J.W., 2016: Effects of Functional Analytic Psychotherapy Therapist Training on Therapist Factors Among Therapist Trainees in Singapore: A Randomized Controlled Trial. Functional Analytic Psychotherapy (FAP) is a behavioral psychotherapy intervention that emphasizes the development of an intimate and intense therapeutic relationship as the vehicle of therapeutic change. Recently, research has provided preliminar...

Siefker-Radtke, A., 2006: Urachal carcinoma: surgical and chemotherapeutic options. The urachal ligament is an embryologic remnant connecting the dome of the bladder to the umbilicus via the ligamentum commune. Autopsy series suggest that in approximately a third of subjects, the urachal remnant may persist with tubular or cystic...

Hase, T.; Wakabayashi, S.; Matsubara, H., 1977: Halobacterium halobium ferredoxin. A homologous protein to choroplast-type ferredoxins. Febs Letters 77(2): 308-310

Abrams S.; Silber T.; Esteban N.; Vieira N.; Meyers R.; Bell N.; Shary J.; Yergey A., 1992: Decreased calcium absorption in adolescents with anorexia nervosa is associated with decreased bone calcium flow and increased urinary calcium excretion. Journal of Adolescent Health 13(1): 48

Carlon Christopher J., 2000: Iron oxide systems and base metal mineralisation in northern Sweden. Pages 283-296 2000

Feig, S.A.; Opelz, G.; Winter, H.S.; Falk, P.M.; Neerhout, R.C.; Sparkes, R.; Gale, R.P., 1976: Successful bone marrow transplantation against mixed lymphocyte culture barrier. If bone marrow transplantation is to become widely applicable in the treatment of patients with leukemia and aplastic anemia, the necessity to have a perfectly histocompatible donor must be overcome. In an effort to define the roles of HL-A type a...

Parhar, I.S.; Iwata, M.; Pfaff, D.W.; Schwanzel Fukuda, M., 1994: Migration and development of GnRH neurons in the migratory salmon. Neuroendocrinology 60(SUPPL 1): 56

Lamichhane, K.M.; Babcock, R.W., 2013: Survey of attitudes and perceptions of urine-diverting toilets and human waste recycling in Hawaii. Urine constitutes only about 1% of domestic sewage but contains 50% or more of the excreted nutrients and chemicals like hormones and pharmaceutical residues. Urine diverting toilet (UDT) systems can be considered a more sustainable alternative to...