Papaya seeds are excellent to be used as a repellent larvae of Aedes aegypti because of the toxins contained in papaya seeds called alkaloid karpaina. The research objective was to determine the effectiveness of papaya seeds powder as Aedes aegypti larvicides. This type of research is True Experiment with Posttest Only Control Group research design, using five treatments (4 grams, 8 grams, 12 grams, 16 grams and 20 grams) and one control. Objects that are used as many as 600 larvaes of Aedes aegypti. If the papaya seeds powder in a simple processsuch as drying and grinding. Each treatment contains 50 larvaes and by doing 2 times repeatedly. The results of data analysis on the number of dead larvaes at a dose trending dead at the lowest possible total percentage of 22% at a dose of 4 grams and the highest percentage of 97% at a dose of 20 grams. The analysis result of one-way ANOVA for the number of differences in the number of dead larvaes, with the value obtained sig. = 0.000, so that ρ <α (0.05) means that there is a significant influence on differences in doses of papaya seeds powder solution used against the death of Aedes aegypti larvaes. The control of Aedes aegypti larvaes using papaya seeds powder can be done by puttingthe powder of papaya seeds as much as 20 grams per 10 liters of water for 24 hours of treatment. Keywords: Papaya Seeds Powder, Dose Variations, Aedes aegypti larvae PENDAHULUANDemam berdarah dengue (DBD) merupakan penyakit yang banyak ditemukan di sebagian besar wilayah tropis dan subtropis, terutama Asia Tenggara, Amerika tengah, Amerika dan Karibia. Host alami DBD adalah manusia, agentnya adalah virus dengue yang termasuk ke dalam famili Flaviridae dan genus Flavivirus, terdiri dari 4 serotipe yaitu Den-1, Den-2, Den-3 dan Den-41, ditularkan ke manusia melalui gigitan nyamuk yang terinfeksi, khususnya nyamuk Aedes aegypti dan Ae. albopictus yang terdapat hampir di seluruh pelosok Indonesia (Candra,2010).Penyakit Demam Berdarah Dengue (DBD) bersifat endemis, menyebar di masyarakat dan dapat menimbulkan wabah serta dapat menimbulkan kematian, terutama pada mereka yang berusia dibawah 15 tahun. Angka kesakitan dan kematian digunakan

Inulin is a natural polymer composed of monomers fructose, which is connected with the linear bonding β-2,1-fruktosil-fructose. One source of inulin is the dahlia tubers (65.700%). The purpose of this study was to determine the water content, degree of purity inulin and how the value of the degree of polymerization inulin from dahlia tubers fresh and stored 4 weeks kinds of decorative strands formal crimson crown. This research was conducted experiments in Chemistry Research Laboratory UNP. The object of research was a kind of decorative dahlia tubers formal crimson obtained in the area of Aia Tawa, Kampung Batu nature, Solok. Inulin was characterized by using GC (Gas Chromatograpy) and HPLC(High-PerformanceLiquidChromtography). Determination of water content by using method of the AOAC(Associationof Official of Analytical Chemist).The results showed that the water content of dry weight percent (bk) inulin from dahlia tubers fresh is 2.123%, Inui figure is not much different than the inulin from dahlia tubers stored 4 weeks 2.003%. Based on the GC spectrum can be analyzed qualitatively that inulin extracted from dahlia tubers have a degree of polymerization of smaller than commercialinulin. Chicory Based on the spectrum of HPLC showed that inulin extracted from the tubers of dahlias has a purity level is almost the same as inulin commercial Chicory merck Fluka.

Many black water or feces and urine field observations in Tanjung Pinang City were dumped directly into the ditches, rivers, and sea. This proves that the management of domestic liquid waste in the City of Tanjungpinang, especially black water, has not yet received serious attention, resulting in a decline in environmental quality. One of the stages in processing black water is decomposition. The decomposition process can be assisted by bacteria, one of which is cellulose-degrading bacteria. This study aims to find bacterial isolates that have the potential to degrade cellulose in feces from coastal soils in Tanjung Pinang City. This research is a laboratory experimental research. The results of this study were obtained 16 bacterial isolates that can degrade cellulose. From these 16 isolates, 3 genera of bacteria were obtained, namely Pseudomonas, Acetobacter and Acinetobacter. Keywords: Cellulose Degradation Bacteria, Coastal Soil

Flies are insect vectors of several types of diseases for humans, such as diarrhea. The number of diarrheal disease sufferers in Tanjungpinang City in 2016 was 2.868. One of flies controlling method is by using bioinsecticide made from papaya (Carica papaya) flower which contains secondary metabolites such as flavonoids, tannins and steroids-triterpenoids. This post-test only designed pre-experiment study was aimed to determine the effectiveness of papaya flower extract as a bio-insecticide against the number of fly deaths. The data were analyzed with one way anova test at 95% confidence level. The number of flies as the study object were 270, which were allocated equally to three dfferent concentration of the papaya flower (25%, 50% and 75%) i.e. each contained 30 flies and repeated three times. The results show that the lowest percen-tage of flies deaths was 76.67% (23 flies) at concentration of 25%, and the highest was 96.67% (28 flies) at concentration of 75%. The results of the one way anova test obtained a p-value less than 0,001. Therefore, it can be concluded that papaya flower extract is effective as bioinsecti-cide for flies.

Iron (Fe) levels in the dug well water of the community in Puspitaloka Residence Housing exceeded the quality standard so processing is needed to reduce the levels of iron contained in the dug well water. The purpose of this study was to determine the differences use of peanut's skin and sawdust absorbents to reduce levels of ferrous in dug well water. This study included pre-experimental research using the design of the one group pretest-posttest. The sampling technique was used in a purposive sampling method. Data analysis were Univariate and Bivariate analysis. Statistical tests used the Wilcoxon Signed Rank test and the Mann Whitney Test. The results showed a decrease in ferrous content using them. The presence of cellulose content in its had the potential to absorb iron. The results of the treatment the highest decrease, using peanut's shells absorbents occurred in the addition of 5 grams with a percentage of 54.41%. While the treatment using sawdust absorbent, occurred at the addition of 10 grams with a percentage of 84.43%. There was a difference the used of peanut's shells and sawdust absorbents to reduce iron levels in the water of the Puspitaloka Residence Housing dug well.