Tumbuhan Kopasanda (Chromolaena odorata L.) banyak terdapat di indonesia dan memiliki potensi sebagai antioksidan. Tujuan penelitian ini untuk menganalisis kadar flavonoid aktivitas antiksidan ekstrak batang kopasanda. Batang diektraksi dengan metode maserasi pelarut etanol 70%. Kadar diukur Spektrofotometri UV-Vis sedangkan antioksidan ditentukan DPPH. Hasil menunjukkan bahwa kopasanda sebesar...

In this paper, we propose Viola, which can define CMG grammar graphically and execute a visual system on the same screen. By using Viola, the user can define various visual systems interactively. It became possible to define grammars using graphical expressions and construct visual systems dynamically, while checking the grammar at the execution time. We have actually implemented Viola in Java ...

this research was conducted to evaluate the possibility using peanut shells compost as a suitable medium in cultivating ornamental plants. effect of peanut shells composts on the growth of viola tricolor and marigold was investigated during seven months. peat + perlite (with a ratio of 2:1) used as control treatment and peat replaced by 25, 50, 75 and 100 % v/v of peanut shells compost. plant g...

The invasion of Chromolaena odorata (L.) R.M. King and H.Rob. affects microbial community structure, but seldom do studies focus on bacterial diversity in the rhizosphere C. from different habitats. To reveal impacts communities habitats, functional groups bacteria were compared soil collected three habitats: abandoned land, a mature eucalyptus forest (eight-years), young (one-year). In this st...