Endang Suarsini

Utilization ultrasonic to increase the efficiency of oil extraction for microalgae indigenous isolates from pond gresik, east java

The prospect of microalgae biomass as biodiesel is a renewable energy to substitute for petroleum. Identification of microalgae indigenous from Gresik ponds, East Java are 29 species, and at Biological laboratory, Science Faculty, UM was able to isolate 10 species. Among the isolated, there are 2 species that faster growth rate, Chlorella vulgaris and Spirogyra sp. Generally, extraction of oil from microalgae biomass requires a long time. The aims from the research are to examine three methods of oil extraction from the two species of microalgae, the experimental laboratory techniques. Biomass of microalgae dry powder was extracted using the solvent n-hexane by three methods, Soxhlet, maceration and ultrasonic waves. On the acquisition of microalgae oil the yield equivalent, compared with extraction time from the three methods. The smaller time of microalgae oil extraction is the more efficient extraction. The results showed: (1) The use of ultrasonic waves can improve the efficiency of microalgae oil extraction. (2) The yield of algae oil which is extracted using the method Soxhlet, maceration, and extraction with the aid of ultrasonic waves in a row is 1.58%, 1.03%, and 1.77% by the time it takes for 18 hours, 8 hours, and 2.33 hours.

Problems Analysis and Utilization Strategy for Local Potential Empowering the Character of Healthy Living for the Poor in Malang Regency

Empowering the character of healthy living is a vital effort to improve the quality of public health, particularly in developing the quality Indonesian human resources. However, the factual knowledge and awareness about the importance of healthy living among the poor is still very low. The aim of this study is to uncover the problems and find local potential utilization solutions to empower the character of healthy living for the poor. Research using the method and qualitative descriptive analysis. Research results in six subdistricts of Malang Regency (Poncokusumo, Tumpang, Turen, Bantur, Wagir, dan Pujon), found that: 1) there is a problem of empowering the character of healthy living that related to educational background, and knowledge about the use of local potential plant, 2) Solution for empowering healthy life character done through four educational strategies; education strategy IV (verbal alloy + video as well as training, practice and monitoring) was able to increase public knowledge of the most high than compared to strategies III, II, and I. Keywords— local potential, empowerment, poor people

Study of ethnobotany of medicinal plant of Tobelo Dalam (Togutil) ethnic group of Halmahera Island, Indonesia

The world population, especially in developing countries, depends on medicinal plants for basic health treatment. In Indonesia, 55.3% people uses traditional herb for their health treatment and 95.6% admits that traditional herb used is valuable for their health. Obelo Dalam (Togutil) ethnic group is one of remote ethnic groups in Indonesia practicing traditional medicinal treatment using medicinal plants. Until now, there is no specific identification on the medicinal plants used by the ethnic group. Information on medicinal plants used by nomadic and sedentary communities of Tobelo Dalam (Togutil) was collected through direct contact semi-structured interview with key informants and group discussion. Determination of main informants was conducted using purposive sampling technique and snowball sampling was used to determine the key informants. Result of study revealed that the nomadic community of Tobelo Dalam (Togutil) ethnic group used 36 species of medicinal plants that belonged to 22 families for medicinal treatment to maintain their basic health; whereas, the sedentary community of the group use 57 species of medicinal plants that belonged to 35 families.