The aim of the present study was to reduce the Ni (II) ions present in the waste water which is highly toxic to the environment. Biosorption experiments were carried out in a batch process which includes the factors like pH, contact time, size variation, adsorbent dose and metal ion concentration. The maximum percentage removal of Ni (II) ions in the aqueous solution is 96.95 % at pH 6 and cont...

male and female leaves and fruits of eleven different taxons of iranian conifers (cupressus sempervirens var. horizontalis, c. sempervirens var. sempervirens, c. sempervirens cv. cereifeormis, juniperus communis subsp. hemisphaerica, j. excelsa subsp. excelsa, j. excelsa subsp. polycarpos, j. foetidissima, j. oblonga, j. sabina, platycladus orientalis and taxus baccata) were collected from diff...

Background and objectives: Juniperus excelsa is a flowering plant that has been applied as traditional medicine for treatment of various disorders such as dysmenorrhea, bronchitis and colds, jaundice and tuberculosis. The aims of the present study were analyzing J. excelsa essential oil and investigation of its cytotoxic activity on three breast cancer cell li...

The essential oils of branchlets and fruits of Juniperus excelsa subsp. excelsa and Juniperus excelsa subsp. polycarpos were examined for their antioxidant activity. The compositions of the essential oils were studied by GC and GC-MS. To evaluation the antioxidants activity of the volatile oils, pure components and positive controls at different concentrations, thin-layer chromatography (TLC) s...

      Butyl-hydroxytoluene (BHT) is one of the major synthetic antioxidants with a wide range usage. Replacement of artificial antioxidants with natural antioxidants is highly considered. In this research, the antioxidant activity of Juniperus excelsa was investigated by using reducing power, DPPH radical scavenging and inhibition of lipid peroxidation. Also, the amounts of phenolic an...


 Alphitonia excelsa merupakan salah satu tanaman yang berpotensi sebagai antioksidan dan telah digunakan secara turun temurun di masyarakat terapi berbagai macam penyakit. Hal tersebut mendasari tujuan penelitian ini, yaitu menentukan aktivitas total flavonoid kulit batang A. excelsa. Metode gunakan dalam pengujian adalah peredaman terhadap radikal 2,2-difenil-1-pikrilhidrazil (DPPH), sed...

A pollen record from Lake Xere Wapo, southeast New Caledonia, is the longest continuous terrestrial record to be recovered from the tropical southwest Pacific and reveals a series of millennial scale changes in vegetation over the last ̈130,000 yr. A comparison of the Lake Xere Wapo record with the key northeast Australian record of Lynch’s Crater reveals regional patterns of change. From ̈120,...