Betty Lukiati

Integrating Place-Based Education in Biology Learning through Inquiry to Improve Studentrs Cognitive Ability and Scientific Attitudes in Sumbawa

The integrating of place-based education needs to make the learning activity more meaningful and make student can apply their knowledge to solve the real problem around them. The purpose of this research is to describe the integrating of place-based education in biology learning through inquiry to improve students cognitive ability and scientific attitude in Sumbawa. The result shows that integrating environmental capacity such as Rawa Lake and Beringin Sila River into learning activity through inquiry can make student cognitive ability increase. By learning directly from the environment, the student has a sign of progress in scientific attitudes in each learning activity. They release that environmental sustainability is their responsibility. So they try to keep the environment by giving the idea to solve the environmental problem. Keywords— place-based education, inquiry, cognitive ability,

Active compounds with antioxidant potential in boiled local Papua-Indonesian garlic

Garlic is a cultivated plant that has benefits as a cooking and medicinal spice. Garlic can be consumed fresh or in a processed state. As a cooking spice, garlic is generally boiled or heated. Garlic processing can damage the content of its active compounds. The purpose of this study was to determine the contents of garlic from the Arfak-Papua Mountains with potential as antioxidants after garlic was processed by boiling. The chemical content of garlic from Papua was determined by Liquid Chromatography Mass Spectrometry (LCMS). The results of determination by LCMS obtained 78 kinds of active compounds. Based on similarity with PubChem NCBI data base, 77 active compounds were identified. Analysis of antioxidants using the PASS Server showed 13 kinds of active compounds with potential as antioxidants belonging to organosulfur compounds, flavonoids, flavonols, phenolics, phytoalexins, terpenoids and vitamins. Among these compounds were allicin, allixin, allithiamine, isoquercitrin and rutin. Based on this re...

Phytochemical screening of Diplazium esculentum as medicinal plant from Central Kalimantan, Indonesia

Diplazium esculentum is one of the ferns used by the Dayak’s people in Central Kalimantan as a traditional medicine to treat tumors, asthma, and acne. This study aims to determine the content of bioactive compounds in Diplazium esculentum in Central Kalimantan. This research is a descriptive study with a qualitative approach. Qualitative phytochemical screening detected the presence of flavonoids, polyphenols, alkaloids, terpenoids and saponins in aqueous extracts with the boiled and brewed method, while in ethanol extract this detected polyphenols, alkaloids, terpenoids, and saponins. The results show that the use of water as a solvent can be an alternative in plant extracts.

Analysis of requirements for teaching materials based on the course bioinformatics for plant metabolism

A way to improve the quality of learning in the course of Plant Metabolism in the Department of Biology, State University of Malang, is to develop teaching materials. This research evaluates the needs of bioinformatics-based teaching material in the course Plant Metabolism by the Analyze, Design, Develop, Implement, and Evaluate (ADDIE) development model. Data were collected through questionnaires distributed to the students in the Plant Metabolism course of the Department of Biology, University of Malang, and analysis of the plan of lectures semester (RPS). Learning gains of this course show that it is not yet integrated into the field of bioinformatics. All respondents stated that plant metabolism books do not include bioinformatics and fail to explain the metabolism of a chemical compound of a local plant in Indonesia. Respondents thought that bioinformatics can explain examples and metabolism of a secondary metabolite analysis techniques and discuss potential medicinal compounds from local plants. As ...