Indah Kencanawati

The increasing resistance of pathogenic bacteria to antimicrobials requires the discovery of new antibiotics. Angsana plant or Lansano (Pterocarpus indicus Willd) is one of the medicinal plants in West Sumatra. Angsana has the potential to have endophytic bacteria capable of producing antibiotic compounds like its host. The endophytic bacterial isolates of Angsana can inhibit the growth of S. aureus and E. coli bacteria. This study aims to determine the genetic characteristics of the endophytic bacteria of Angsana leaves that produce antibiotic compounds through phylogenetic tree analysis.

Increasing cases of antibiotic resistance encourage researchers to find new bioactive compounds. The source of the newly developed antibiotics is utilizing endophytic bacteria. BA1 isolate is an endophytic bacterium from Lansano plant (Pterocarpus indicus Willd) which has high antimicrobial activity. Antibiotic compounds are produced through a fermentation process. The purpose of this study was to optimize the fermentation conditions of endophytic bacteria Lansano isolate BA1 in producing antibiotic compounds. Optimization of the fermentation time was carried out for 72 hours.

This study aims to reconstruct the community's original knowledge in the process of making potato dodol into scientific knowledge according to the halal criteria of a product determined by the halal product guarantee system. The research method used is descriptive qualitative based on ethnoscience with the scope of examination including document analysis, interviews and documentation. Data collection is done directly to respondents (business actors) by purposive sampling.

Penelitian ini bertujuan untuk meningkatkan keterampilan berpikir kritis dan self efficacy mahasiswa biologi melalui tahapan pengembangan konseptual modifikasi model inkuiri. Tahapan pengembangan konseptual modifikasi model inkuiri menggunakan prosedur sintesis Lee and Jang dengan pendekatan Theory-driven conceptual Instructional Design Models tipe F1-O1-S1-A1 dan dilanjutkan dengan tahapan eksperimen menggunakan uji-t.

Biological knowledge holding a very important role in following the times. The concept itself is to discuss about development of science processes and natural events of the standpoint of science as well as contained in the Quran. Phenomenally science can be seen as a product, the process and paradigm of ethics (attitudes and value) in the processes that require a proof, so that will be verified in accordance with the concept, law and supported theories.