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Fingerprinting of cerrado species based on cork lipophilic constituents
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Antonio Salatino, Marcelo J.P. Ferreira, Renata G. Udulutsch, Carmen E. Palacios, Maria Luiza F. SalatinoAbstractCerrado is a savanna ecosystem of central and southeastern Brazil. Many woody species of cerrado have thick layers of cork. The present work aimed to characterize, by GC/MS analysis, the constituents of n-hexane extracts from the cork of common species from cerrado. Cork samples from 31 individuals, corresponding to 14 species and six families, were analyzed. Similarities and differences were noticed between cork and ...
Source: Biochemical Systematics and Ecology - December 19, 2019 Category: Biochemistry Source Type: research

Flavonoids from the leaves and twigs of Knema elegans
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Zhao Lu, Wen-Chao Wu, Mei Wang, Jia-Qian Zhang, Ye-Gao Chen, Rui Zhan, Li-Dong ShaoAbstractKnema elegans, a tropical evergreen plant, belongs to Myristicaceae family. Phytochemical investigation on the leaves and twigs of K. elegans led to the isolation and identification of two new flavonoids knemavones A and B (1 and 2), along with fifteen known analogues (3–17). These compounds belong to four subtypes of flavonoids, including chalcones, flavanes, flavones, and isoflavones. The structures of 1 and 2 were elucidated by means ...
Source: Biochemical Systematics and Ecology - December 19, 2019 Category: Biochemistry Source Type: research

Flavonoids from Atropa belladonna (Solanaceae) leaves revisited
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Serhat Sezai Çiçek, Sofia Malek, Christian Zidorn (Source: Biochemical Systematics and Ecology)
Source: Biochemical Systematics and Ecology - December 18, 2019 Category: Biochemistry Source Type: research

Vernoguinamide: A new ceramide and other compounds from the root of Vernonia guineensis Benth. and their chemophenetic significance
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Steven Collins N. Wouamba, Gervais Mouthé Happi, Bruno N. Lenta, Norbert Sewald, Siméon Fogué KouamAbstractThe chemical investigation of the roots of Vernonia guineensis Benth. (Asteraceae) resulted in the isolation of a new ceramide, named vernoguinamide (1), together with fifteen known compounds, including three anthraquinones, physion (2), erythroglaucin (3) and emodin (4), three triterpenoids, hop-17(21)-en-3β-yl acetate (5), lupeol (6) and betulinic acid (7), six steroids, vernoguinoside A (8), vernoguinoside (9), β-si...
Source: Biochemical Systematics and Ecology - December 14, 2019 Category: Biochemistry Source Type: research

Variation of Kukoamine A (KuA) and B (KuB) contents and related meteorological factors for Cortex Lycii radicis of different areas
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Yuping Li, Shaohua Zeng, Feng Li, Haihui Xie, Aysha Arif Chahel, Tianshun Yang, Ying WangAbstractKukoamines are polyamine alkaloids present in Cortex Lycii (LyC), which is the root bark of Lycium chinense Mill. or L. barbarum L. Environmental conditions and geographical distribution influence the biosynthesis and accumulation of Kukoamines in Lycium species, thus directly affecting the quality of LyC. To identify the factors that influence Kukoamine A (KuA) and Kukoamine B (KuB) accumulation, the KuA and KuB contents of L. chine...
Source: Biochemical Systematics and Ecology - December 13, 2019 Category: Biochemistry Source Type: research

Chemical markers of four species of Epimedium used in drug Yin-Yang-Huo
This study aimed to identify the chemical markers of these species by HPLC-PDA fingerprinting combined with chemometrics methods. The HPLC separation was performed on a Water's Atlantis®T3 column (4.6 × 250 mm, 5 μm) with the gradient elution of acetonitrile-0.1% formic acid aqueous solution using a PDA detector. The HPLC-PDA fingerprints of 88 batches of Yin-Yang-Huo samples were obtained and analysed using principal component analysis (PCA) and hierarchical cluster analysis (HCA). Samples of E. koreanum and E. sagittatum were classified into separate groups, while samples of E. brevicornum and E. pubescens were cl...
Source: Biochemical Systematics and Ecology - December 13, 2019 Category: Biochemistry Source Type: research

Phytochemical and chemotaxonomic study on Evodia rutaecarpa var. officinalis
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Qi Yan, Yu Shan, Min Yin, Shu Xu, Chen Ma, Hai-Ying Tong, Xu Feng, Qi-Zhi WangAbstractPhytochemical investigations of the dried and nearly ripe fruits of Evodia rutaecarpa (Juss.) Benth. var. of officinalis (Dode) Huang (family Rutaceae) led to the isolation of twenty compounds, including eight quinolone alkaloids (1–8), seven indole quinazoline alkaloids (9–15), two limonoids (16–17) and three sterols (18–20). The chemical structures of these compounds were elucidated by extensive spectroscopic analyses and by compariso...
Source: Biochemical Systematics and Ecology - December 11, 2019 Category: Biochemistry Source Type: research

Chemical constituents from Fallopia cynanchoides (Hemsl.) Harald. var. cynanchoides
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Jianqing Wang, Zhan ChenAbstractFifteen compounds were isolated and elucidated from the alcohol extract of Fallopia cynanchoides by modern phytochemical isolation and spectroscopic methods, and these compounds can be divided into four sterols, a phenol, anthraquinones, a chromone, two stilbenes and three flavonoids. All of these compounds were obtained from this plant for the first time. Chemotaxonomic studies indicated that F. cynanchoides has very close relationships with F. convolvulus and F. aubertii, and the genus Fallopia ...
Source: Biochemical Systematics and Ecology - December 7, 2019 Category: Biochemistry Source Type: research

Polyacelylenic alcohols and alkaloid derivatives from a calcareous marine sponge, Leucetta chagosensis
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Xiao-Hong Sun, Ron-Ping Zhao, Yan Chen, Shuang Li, Wei-Zhuo TangAbstractA chemical investigation of the CH2Cl2 extract of the marine sponge Leucetta chagosensis afforded 8 secondary metabolites, namely, pellynol A (1), pellynol B (2), pellynol I (3), pellynol D (4), plakohypaphorine B (5), plakohypaphorine E (6), 4-bromo-1H-pyrrole-3-carboxamide (7), and 2-phenylacetamide (8). The structures of these secondary metabolites were elucidated via NMR spectroscopic analysis, MS experiment and compared with those reported in the litera...
Source: Biochemical Systematics and Ecology - December 5, 2019 Category: Biochemistry Source Type: research

Phenolic derivatives from Garcinia multiflora Champion ex Bentham and their chemotaxonomic significance
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Haojie Yang, Dongsong Tian, Yanrong Zeng, Liejun Huang, Wei Gu, Xiaojiang Hao, Chunmao YuanAbstractA phytochemical investigation of the leaves and twigs of Garcinia multiflora Champion ex Bentham led to the isolation of eleven phenolic derivatives, including a new polycyclic polyprenylated acylphloroglucinol (PPAP, 1), five known PPAPs (2–6), three xanthones (7–9), a benzophenone (10), and a methyl phenyl acetate derivative (11). Their structures were established by extensive spectroscopic analysis, including HR-ESI-MS and N...
Source: Biochemical Systematics and Ecology - December 4, 2019 Category: Biochemistry Source Type: research

Chemical constituents of flowers from Geoffroea spinosa Jacq. (Leguminosae), a plant species visited by bees
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Sonia Pereira Cabrera, Celso Amorim Camara, Tania Maria Sarmento SilvaAbstractPhytochemical investigation of flowers from Geoffroea spinosa via ultra-performance liquid chromatography coupled with diode array and quadrupole time-of-flight mass spectrometry (UPLC-DAD-TOF-MS/MS) resulted in the characterization of fourteen compounds: six flavonoids, three hydroxycinnamic acid derivatives, and five hydroxycinnamic acid amide derivatives. This is the first report on the identification of hydroxycinnamic acid amide derivatives from t...
Source: Biochemical Systematics and Ecology - November 27, 2019 Category: Biochemistry Source Type: research

Chemical constituents from the aerial parts of Euphorbia formosana Hayata and their chemotaxonomic significance
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Yu-Hsuan Lan, Chia-Hung Yen, Yann-Lii LeuAbstractA phytochemical investigation of the aerial parts of Euphorbia formosana Hayata resulted in the isolation of 33 compounds, including various derivatives of ellagic acid and gallic acid. The chemical structures were elucidated by spectroscopic methods and comparison with relevant data from the literature. The chemotaxonomic significance and distribution of these derivatives of ellagic acid and gallic acid in the genus Euphorbia are discussed. (Source: Biochemical Systematics and Ecology)
Source: Biochemical Systematics and Ecology - November 23, 2019 Category: Biochemistry Source Type: research

Steroids, fatty acids and ceramide from the mushroom Stropharia rugosoannulata Farlow apud Murrill
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Qing-Xiang Yan, Mei-Xian Huang, Peng Sun, Shi-xian Cheng, Qiang Zhang, Hang DaiAbstractStropharia rugosoannulata Farlow apud Murrill is an edible mushroom. Phytochemical investigation of the sporophore of Stropharia rugosoannulata resulted in isolation and identification of 16 compounds, including steroids (1-6), steroidal saponins (7), fatty acids (8–10), alkanes (11), ceramides (12), esters (13), pyrimidines (14), vitamins (15) and flavonoids (16). The structure elucidation of isolated compounds was achieved on the basis of ...
Source: Biochemical Systematics and Ecology - November 23, 2019 Category: Biochemistry Source Type: research

Volatile chemical composition does not support a native status of the cryptogenic Bupleurum fruticosum (Apiaceae) in peninsular Italy
Publication date: February 2020Source: Biochemical Systematics and Ecology, Volume 88Author(s): Francesco Roma-Marzio, Basma Najar, Valeria Nardi, Luisa Pistelli, Lorenzo PeruzziAbstractCryptogenic (or doubtfully native) species could have relevant implications in biogeography and in nature conservation. Bupleurum fruticosum is native in Sicily, Sardinia, and Liguria, whereas the single Tuscan population is considered cryptogenic. Given its pharmacological activity, several studies investigated the essential oil composition of this species, but an analysis of geographic pattern of the chemical composition was never perform...
Source: Biochemical Systematics and Ecology - November 22, 2019 Category: Biochemistry Source Type: research

Editorial Board
Publication date: December 2019Source: Biochemical Systematics and Ecology, Volume 87Author(s): (Source: Biochemical Systematics and Ecology)
Source: Biochemical Systematics and Ecology - November 20, 2019 Category: Biochemistry Source Type: research