Local herbalists in Nigeria claimed that extracts of certain parts, that is, stem and seeds obtained from Crinum glaucum,Treculia africana, Erythrina mildbaedi, Ficus thonningii and Xylopis aethiopica are used to treat tuberculosis patients. We conducted a laboratory-based study of this claim scientifically using the procedures employed by the local herbalists. The Mycobacterium tuberculosis strain used in this study was obtained locally and characterized based on cultural and biochemical tests on isolates of bacteriologically proven tuberculosis positive patients. The M. tuberculosis strains were found resistant to all the extracts. There was no growth on the isoniazid drug containing medium which was used as control. There was growth on all the LJ medium containing the extracts. The results of these findings shows that the extracts of these plants exhibited no significant anti-microbial activity against M. tuberculosis and therefore not recommendable for clinical use as an anti-tuberculosis drug.
Botryodiplodia theobromae merupakan permasalahan utama dalam pertanian jeruk, sehingga perlu dilakukan penanganan dengan memanfaatkan biofungisida yang aman bagi lingkungan pertanian. Penelitian ini mempunyai target/tujuan yaitu untuk mengetahui keeefektifan ekstrak lengkuas merah (Alpinia purpurata K. Schum) dalam menghambat pertumbuhan jamur Botryodiplodia theobromae pada tanaman jeruk. Penelitian ini menggunakan metode eksperimen dengan jenis metode yaitu desain penelitian RAL (Rangkaian Acak Lengkap) dengan melakukan 6 perlakuan dan 4 pengulangan. Hasil dari analisis data yang sudah dilakukan menunjukkan bahwa ekstrak lengkuas merah pada konsentrasi 50% mampu menghambat pertumbuhan cendawan Botryodiplodia theobromae, karena pertumbuhan pada konsentrasi 50% lebih kecil dibandingkan dengan EC50% pada control aquades. Hasil dari penelitian ini didapatkan kesimpulan bahwa ekstrak lengkuas merah (Alpinia purpurata K. Schum) efektif dalam menghambat pertumbuhan jamur Botryodiplodia theobromae pada tanaman jeruk.
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