Seasonal variation in the phenol content of Eugenia uniflora L. leaves
نویسندگان
چکیده
منابع مشابه
Seasonal variation in the phenol content of Eugenia uniflora L . leaves
Hydrolysable tannins, total phenols and flavonoids in Eugenia uniflora leaves were monthly analysed for one year. The results were correlated with climate conditions (rainfall, humidity, cloudiness and mean temperature) through chemometric methods. Principal component analysis revealed high levels of hydrolysable tannins in the rainy season, whereas flavonoids were mainly produced in the dry se...
متن کاملSeasonal Variability of Essential Oils of Eugenia uniflora Leaves
A influência sazonal na composição química dos óleos essenciais das folhas de Eugenia uniflora de um biótipo de cor de fruto vermelho-alaranjado indicou a presença de dois grupos de óleos em relação às duas estações do Cerrado brasileiro. O grupo I incluiu amostras coletadas na estação seca (abril-setembro), caracterizadas por conterem as mais altas percentagens de espatulenol (10%) e óxido de ...
متن کاملBioactive compounds from the leaves of Eugenia uniflora
From the MeOH extract of the leaves of Eugenia uniflora eight compounds were isolated, including one sterol, β-sitosterol (1); two triterpenes, betulinic acid (2) and centelloside C (8); three flavonoids, myricetrin (3), myricetin 3-O-(4’’-O-galloyl)-αL-rhamnopyranoside (4), and myricetin 3-O-β-D-glucopyranoside (5); and two megastigmanes, actinidioionoside (6), and (6S,9R)-roseoside (7). All t...
متن کاملChloroplast DNA variation and phylogeography of Eugenia uniflora L. (Myrtaceae) in the Brazilian Atlantic forest
Introduction and objectives The Atlantic Forest (AF) is considered the second largest tropical forest in South America with high species richness and endemisms, harboring a large diversity of animals, plants and habitats types [1]. This biome covers an area of more than one million square kilometres along the Brazilian coast and extending to eastern Paraguay and northeastern Argentina [2]. AF i...
متن کاملSCREENING OF Eugenia uniflora (L.) LEAVES IN VARIOUS SOLVENTS FOR QUALITATIVE PHYTOCHEMICAL CONSTITUENTS
In the last few years there has been an exponential growth in the field of herbal medicine and these drugs are gaining popularity both in developing and developed countries because of their natural origin and less side effects. The current study focuses on qualitative phytochemical screening of primary and secondary metabolites in Eugenia uniflora leaves with different solvents like methanol, e...
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ژورنال
عنوان ژورنال: Revista Brasileira de Plantas Medicinais
سال: 2011
ISSN: 1516-0572
DOI: 10.1590/s1516-05722011000100013