Records of Natural Products
A scientific open acces journal in the field of natural products.
Records of Natural ProductsA scientific open acces journal in the field of natural products.
A New Acylated Benzyl Alcohol Glucoside from Syzygium austroyunnanense
A new acylated benzyl alcohol glucoside, benzyl alcohol 3',6'-di-O-galloyl-b-glucopyranoside (1), together with a known analogue, 6'-O-galloyl-b-glucopyranoside (2) and a cyanogenic glucoside, 6‵-O-galloylprunasin (3) were isolated from the leaves of Syzygium austroyunnanense. Their structures were characterized based on the spectroscopic methods and comparison with literature. This is the first phytochemical study on Syzygium austroyunnanense.DOI http://doi.org/10.25135/rnp.85.18.04.277 (DOI number will be activated after the manuscript has been available in an issue.) Keywords Syzygium austroyunnanense Myrtaceae acylated glycoside. Available online: September 25, 2018 DETAILS DOWNLOAD PDF © ACG Publications. All rights reserved.
Composition of the Essential Oils of Two Endemic Helichrysum Species in Turkey
The aerial parts of Helichrysum noeanum Boiss. and H. chionophilum Boiss. et Balansa were hydrodistilled for 3 h using a Clevenger-type apparatus. The essential oils were analyzed by GC-FID and GC-MS, simultaneously. The main constituents were identified as hexadecanoic acid (25.3%), dodecanoic acid (17.8%), tetradecanoic acid (13.7%), and decanoic acid (4.2%) for H. noeanum. Decanoic acid (18.7%), tetradecanoic acid (16.9%), dodecanoic acid (13.8%), hexadecanoic acid (12.2%) and hexahydrofarnesyl acetone (3.2%) were found to be the major compounds for H. chionophilum. Several reports have been encountered in the literature dealing with the oil composition of several Helichrysum species. To the best of our knowledge, the essential oil of H. chionophilum has not previously been investigated.DOI http://doi.org/10.25135/rnp.93.18.06.113 (DOI number will be activated after the manuscript has been available in an issue.) Keywords Helichrysum noeanum H. chionophilum essential oil GC GC-MS. Available online: September 20, 2018 DETAILS DOWNLOAD PDF © ACG Publications. All rights reserved.
New Cytotoxic Metabolites from Pathogenic Fungus Cylindrocarpon destructans Associated with Meconopsis grandis
Phytochemical investigation on pathogenic fungus Cylindrocarpon destructans isolated form Meconopsisgrandis plant led to the isolation of two new isochromene derivatives namely, 6,8-dimethoxy-3-methyl-3,4-dihydrobenzoisochromene-4,9,10-triol (1) and 3,5,6-trihydroxy-4-methylbenzoisochromene-9,11-dione (2) along with four known compounds (3-6). The structures of these compounds were elucidated by 1D and 2D NMR and mass spectroscopic data analysis. The isolated compounds were evaluated for cytotoxic activity. The compounds 1-4 showed good inhibition against the growth of cell lines MCF-7 and PC-3. Compounds 5-6 showed minimum inhibitory effect of cancerous cell lines growth.DOI http://doi.org/10.25135/rnp.67.18.01.207 (DOI number will be activated after the manuscript has been available in an issue.) Keywords Pathogenic fungus Cylindrocarpon destructans Meconopsis grandis cytotoxic activity Available online: August 27, 2018 DETAILS DOWNLOAD PDF © ACG Publications. All rights reserved.
In vitro Propagation and Volatile Compound Characterization of Lavandula stoechas L. subsp. stoechas- An Economically Important Source of Essential Oil
The objective in this study is to isolate and characterize volatile compounds of Lavandula stoechas L. subsp. stoechas rooted with micropropagation techniques and grown under suitable in vitro conditions. Microdistillation procedure was applied on aerial parts of this plant. The volatile compounds were characterized by GC-FID and GC-MS systems, simultaneously. Based on results, twenty-two compounds were identified. Major volatile compounds included camphor (38.5%), bornyl acetate (10.6%), α-fenchone (8.9%), 1,8-cineole (4.3%), α-pinene (4.0%), linalool (3.5%), viridiflorol (3.8%) myrtenal (2.7%), geranyl acetate (2.1%). These results were positively related with data published regarding the plant growing wild.DOI http://doi.org/10.25135/rnp.86.18.04.105 (DOI number will be activated after the manuscript has been available in an issue.) Keywords Lavandula stoechas subsp. stoechas tissue culture microdistillation volatile compounds. Available online: August 04, 2018 DETAILS DOWNLOAD PDF © ACG Publications. All rights reserved.