BIOLINK : Jurnal Biologi Lingkungan, Industri dan Kesehatan
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UJI AKTIVITAS ANTIFUNGAL EKSTRAK KULIT PISANG BARANGAN (MUSA ACUMINATA COLLA.) TERHADAP PERTUMBUHAN JAMUR PITYROSPORUM OVALE
Clean and Healthy Lifestyle is essential to be endeavored by society for preventing variety of infectious diseases which one of the most common is dandruff or seborrhea sicca that caused by the growth of Pityrosporum ovale fungi. This research is indicated to provide a better alternative option using ingredient given by nature that can treat dandruff. This research using banana peel extract since it is an original fruit from North Sumatra. The result from phytochemical screening of the banana peel extract shows secondary metabolites which are saponin, tannin, steroid/tritepenoida, flavonoid and glycosides. To produce barangan banana peel extract is by maseration method. Antifungal activity test using barangan banana peel extract towards Pityrosporum ovale is done by disc diffusion method. The antifungal activity test shows the biggest result for Minimum Inhibitory Concentration (MIC) extraction concentration at 1000 mg/ml with the average diameter of 11,9 mm. According to the inhibitory scale of antifungal activity test of barangan banana peel extract towards the growth of Pityrosporum ovale is ineffective
PENGARUH KESEIMBANGAN FOREMILK DAN HINDMILK DENGAN POLA DEFEKASI BAYI YANG MENDAPATKAN ASI EKSKLUSIF DI DESA SUKARENDE
Mothers who exclusively breastfed their babies from 2011-2015 tended to increase. However, in breastfeeding there are still many maternal understandings that are lacking about foremilk and hindmilk. Foremilk and hindmilk are related to the duration of the baby breastfeeding, if the baby has not been obtained in a balanced manner can cause problems in the pattern of defecation of infants especially those aged 1-6 months. The purpose of study was to determine the effect of foremilk and hindmilk balance with defecation patterns of infants who received exclusive. The study design was cross sectional, with total sample 30 mothers who had infants aged 1-6 months and exclusively. The results showed the majority (96.7%) frequency of defecation of infants 1-8 times, consistency of soft stool (96.7%) and yellow stool (93.3%). Out of 30 respondents 53.33% of mothers had a balance of foremilk and hindmilk while breastfeeding and 86.66% of infants had normal defecation patterns. Chi-square test results did not influence the balance of foremilk and hindmilk with the pattern of defecation  with 30 respondents surveyed. This shows that the balance of foremilk and hindmilk has not affected the pattern of infant defecation including frequency, consistency and color of feces
ISOLASI JAMUR ENDOFIT AKAR KEDELAI DAN UJI PENGHAMBATANNYA TERHADAP FUSARIUM OXYSPORUM SEBAGAI AGEN PENGENDALI HAYATI
Endophytes are microbes (bacteria, fungi, or actinomycetes) that live and colonize the host tissue without causing negative effects, even giving benefits to the host. One of the advantages is as a biological control agent for both insect pests and pathogens that cause plant diseases. As a biological agent, endophytes can reduce plant damage by insects, nematodes, or pathogens that cause disease through induction of plant resistance. In addition, endophytes can also function as biological agents through antagonistic interactions and competition. The purpose of this study was to obtain endophytic fungi which are potentially as biological agents of insect pests; the mechanism, as well as the application of endophytes in plantation crops. The potential of enndofit fungus in controlling Fusarium sp carried by soybean seeds was also tested
EFEKTIVITAS BIOHERBISIDA DARI LIMBAH CAIR PULP KAKAO DALAM PENGENDALIAN BERBAGAI JENIS GULMA DI KEBUN MASYARAKAT KECAMATAN DELI TUA KABUPATEN DELI SERDANG
Weed known as plants that are able to adapt on the rhythm of growth of crops cultivation. The growth of weeds fast, high regeneration power when injured, and was able to bloom even though conditions are harmed by crop cultivation. Physically, weeds compete with the crop cultivation for space, light, and chemically for water, nutrients, gases. The research was done in the Kec.Deliserdang. The time of the research was carried out in May up to September 2018. Methods in this study using Random Design Group, which is composed of 5 treatment and 6 Deuteronomy. treatment with long fermentation liquid waste pulp. The level of intoxication bioherbicide against weeds was observed after 14 days after application assessment scoring system with cocoa. The results obtained in this study indicate that Fermented pulp of cocoa poisoning influence of weeds Ageratum conyzoides, Axonopus compresus, Borreria latifolia, Cyperus kylingia and Paspalum conjugatum. Fermentation efektiv on F3. There are 4 types of weeds that the level of toxicity is higher compared with long fermentation of 1, 2, and 4 weeks. Of the 5 types, bioherbisida pulp of cocoa is very poisoning the type level effective weeds Ageratum conyzoides until 14 days
UJI EFEKTIVITAS ANTIBAKTERI EKSTRAK DAUN SIRSAK (ANNONA MURICATA LINN.) TERHADAP BAKTERI PROPIONIBACTERIUM ACNES
This research aims to determine the effectiveness of the antibacterial soursop leaf extract (Annona muricata L.). The method used is the agar diffusion method. The leaves were extracted by maceration method, using ethanol as a solvent. The soursop leaf extract obtained was then diluted using ethanol 96% at a concentration of 20%, 40%,60%, 80%. Positive control using clindamycin and negative controls using sterile aquadest. The research model used in this study is an experimental research model In Vitro of type. The results showed that soursop leaf extract had antibacterial effectiveness against Propionibacterium acnes with an average inhibition zone diameter of 9,7 mm; 13,7 mm; 15,7 mm; 16,3 mm; positive control (clindamysin) 21,0 mm; and negative control (aquadest) have no value tobe able to inhibit bacterial growth
UJI ANTIBAKTERI EKSTRAK BUAH TAKOKAK (SOLANUM TORVUM SWARTZ) TERHADAP PERTUMBUHAN BAKTERI PROPIONIBACTERIUM ACNES
Acne vulgaris is a disorder of the skin characterized by changes in blackheads, papules, pustules, and nodules that often occur on the face, shoulders, and back. Propionibacterium acnes is the main habitat that contributes to acne. One of the plants that have an anti-bacterial effect is takokak fruit. This study aims to study the presence or absence of anti-bacterial effects of takokak fruit extract on the growth of Propionibacterium acne bacteria. The test method used is the Diplo disk diffusion method. The fruit was extracted by maceration method using ethanol as a solvent and then diluted using 96% ethanol at a concentration of 25%, 50%, 75%, 100% while the positive control used a clindamycin suspension and negative control of distilled water. The results showed that takokak fruit extract had an antibacterial effect on Propionibacterium acnes with an average diameter inhibition zone of 16.75 mm; 18.3 mm; 18.85 mm; 21.92 mm. Positive control (clindamycin) 37,45; negative control (distilled water) has no value to prevent bacteria
KADAR KADMIUM PADA AIR SUMUR GALI DISEKITAR TEMPAT PEMROSESAN AKHIR SAMPAH (STUDI DI TEMPAT PEMROSESAN AKHIR SAMPAH X KABUPATEN JEMBER, INDONESIA)
The controlled landfill method can produce leachate water. Leachate water has high potential to contaminate ground water. The cadmium (Cd) can spread into the soil through a process of impregnation that follows the movement of groundwater flow. The purpose of this study was to analyze the relationship between the distance and well construction with cadmium content in the well water dug around the landfill. This research was an observational analytic research with cross sectional research design. The data collection method used in this research were observation, measurement, documentation and laboratory test. The result of laboratory test showed 80% of the wells exceed the quality standard (0,005 ppm). The result of bivariate analysis using chi square test showed that there was no correlation between the distance with cadmium content in dug well water around landfill (sig = 0.173) and there was a relation between well construction with cadmium content in dug well water around landfill (sig = 0.035). The good standart construction of dug well can inhibit the cadmium in the dug well water
RANCANG BANGUN PENGELOLAAN SAMPAH TERPADU ANTAR DAERAH BERBASIS PERMAINAN DINAMIS
Joint waste management between regions that bordered each other can be one alternative solution of the problem of trash in Indonesia. Some areas have conducted cooperation in waste management, such as Sarbagita and Kartamantul. Dynamic game can be an alternative method in joint waste management between the regions. The purpose of this article is to design joint waste management between regions using the dynamic game theory framework approach. A dynamic game is a mathematical model that represents the conflict situation between the interested parties who want to make the best decision (in this case it is the city/district government) of a series of strategies that are possible by considering the existence of the various uncertainties at such situation. The discussion is done by assuming there are three areas of the bordering regoins and making some waste disposal regulations. Furthermore, the mathematical operations and simplification of the form of equation are executed to adapt to the design objectives. The results of the design in this approach are the invention of two mathematical equations describing the characteristics of dynamics waste stock in the adjoining regoins, and the cost to be incurred by each regions in managing its waste stock
PENGARUH RADIASI PLASMA DAN PUPUK KANDANG KAMBING TERHADAP PERTUMBUHAN BAWANG MERAH VARIETAS BIMA BREBES
Shallot variety of Bima Brebes is a shallot variety that is widely cultivated by farmers in Indonesia because it is easy to grow and adapt to the local environment. However, in reality many farmers use the previous harvest for the next planting seed so that the yields obtained will be of poor quality. This study aims to determine the effect of giving nitrogen through corona incandescent plasma discharge and goat fertilizer on the growth of shallots so that it can improve the quality of onion seedlings. This study used a Completely Randomized Design (CRD) with a factorial pattern using a corona incandescent plasma discharge factor and goat manure. The results showed an interaction between the two factors that can be seen from the plant height parameters which showed significant results in the treatment of plant seeds that were plasma radiation for 30 minutes and the planting media were given goat manure 65 g. Based on the results of the study it can be concluded that the administration of corona incandescent plasma discharge and goat manure on the cultivation of shallots varieties of Bima Brebes was able to accelerate the time of sprouting by 200.3% and increase the growth of onion plants
EFIKASI INSEKTISIDA NABATI EKSTRAK BUNGA KEMBANG BULAN (Tithonia diversifolia A. Gray) TERHADAP HAMA ULAT GRAYAK (Spodoptera litura F.) PADA TANAMAN SAWI DI LABORATORIUM
Armyworm (Spodoptera litura) is one of the pests that attack vegetable plants in Indonesia. The attack resulted in the leaves of the plant being cut and perforated so as to reduce productivity and even crop failure The aim of the study was to determine effectiveness of Tithonia diversifolia extract as a vegetable insecticide to control the Spodoptera litura in mustard plants at the laboratory. The study used a completely non-factorial randomized design consisting of 5 treatments, K0 = no extract (control), K1 = concentration 4%, K2 = concentration 6%, K3 = concentration 8%, K4 = concentration 10%. Parameters observed were morphological changes and insect behavior, percentage of larval mortality, percentage of pupae and imago formed. The results that Tithonia diversifolia extract can control Spodoptera litura. The result of 8% (K3) Tithonia diversifolia extract effectively controls Spodoptera litura. The highest percentage of larval mortality of Spodoptera litura (80%) was found in the treatment of K3 (concentration 8%) at observation 9 HSA and the lowest mortality was found in K1 (concentration 4% with an average 67.5%. The lowest formation of pupa and imago in the K3 treatment was 20 and 29.17