146 research outputs found

    Uji Aktivitas Antioksidan Dan Profil Fitokimia Ekstrak Kayu Beta-beta (Lunasia Amara Blanco.): Antioxidant Activity and Phytochemical Profile of Beta-beta (Lunasia Amara Blanco) Wood Extract

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    Beta-beta wood (Lunasia amara Blanco) is one of the Rutaceae plants. It has been used traditionally in Indonesia, both in the form of a single extract or in a mixture of several herbs, for the treatment of swollen feet, skin diseases and inflammation or irritation of the eyes. This study aims to examine the antioxidant activity and the phytochemical profile of beta-beta wood extract. The research methods include plant extraction by maceration, testing of antioxidant activity by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method and phytochemical profiling with specific chemical reagents. The results showed that beta-beta wood extract (Lunasia amara Blanco) has antioxidant activity with IC50 was 69.46 μg/ml (0.069 mg/ml) and it contained steroid, phenolic, saponin, alkaloid and coumarin compounds

    Small Scale Field Tests (Phase 2) and Laboratory Tests (Phase 1) with Oms-2014 (Vetrazin), an Insect Growth Regulator, Against Culex Quinquefasciatus and Aedes Aegypti in Jakarta, Indonesia

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    Telah dilakukan uji laboratorium dan uji lapangan dalam skala kecil dengan vetrazin (OMS—2014) terhadap larva Culex quinquefasciatus dan larva Aedes aegypti di Jakarta. Hasil uji laboratorium menunjukkan bahwa larva Cx. quinquefasciatus lebih rentan terha­dap OMS—2014 dibanding dengan larva Ae. aegypti. LC50 untuk larva Cx. quinque­fasciatus adalah 0,13 mg/l, sedangkan untuk larva Ae. aegypti adalah 0,48 mg/l. Uji labo ratorium menunjukkan pula bahwa beberapa larva dapat menjadi pupa, tetapi kebanyakan mati dalam bentuk pupa. Di samping itu terdapat pengaruh terhadap terjadinya pupa, sehingga kematian yang terbanyak terjadi pada stadium larva. Hasil uji lapangan menun jukkan bahwa OMS—2014 lebih efektif terhadap larva Ae. aegypti daripada larva Cx. quinquefasciatus. Hasil uji lapangan dalam skala kecil dengan OMS— 2014 terhadap larva Ae. aegypti efektivitasnya sama dengan hasil uji dengan methoprene dan sedikit lebih pendek daripada diflubenzuron. Untuk memberantas larva Cx. quinquefasciatus dalam selokan yang airnya tercemar, efektivitasnya sama seperti dengan methoprene dan diflubenzuron

    Determination of Meat Content in Processed Meats Using Currently Available Methods

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    Four methods were used in the determination of meat content in local meat and meat products. Current methods available are not reliable and applicable to routine monitoring and quality control by the regulating laboratories as well as the meat processing industry. A reliable and practical method is needed to monitor meat Introductions and ensure that they are meeting the minimum requirement of sixty five (65 %) percent meat content. The total pigments and hemoglobin technique was found to be applicable for determination of meat content in locally Inocessed beef burgers, when compared to the Modified Method of Stubbs & More (1919), and Pearson Method (1975

    Causes and Outcomes of Spontaneous Pneumothoraces in Solid Tumor Cancer Patients: An Update for the Medical Oncologist

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    PurposeDefined as lung collapse in the absence of a recent invasive thoracic procedure, a spontaneous pneumothorax can be a catastrophic event, leading to abrupt shortness of breath, chest pain, hypotension, and occasionally death. A dearth of present day information on this entity in solid tumor cancer patients prompted this single-institution retrospective study on current causes and outcomes.MethodsAll patients with diagnoses of “spontaneous pneumothorax” and “cancer” between 1990 and 2004 had their records retrieved and reviewed. Among 546 patients with a diagnosis of spontaneous pneumothorax, only 25 (5%) met predefined inclusion criteria that included an antecedent diagnosis of an invasive solid tumor malignancy. Lung (n = 5) and bladder cancer (n = 4) were the most common malignancies; eight patients had received radiation and one had received carmustine. Of note, 78% were smokers, 13 had chronic obstructive pulmonary disease, and 12 had no known active cancer at the time of the pneumothorax.ResultsPneumothorax management was associated with great morbidity, including hospitalization in 24 patients and chest tube placement and/or surgery in most patients. Median survival for the group as a whole was 31 months, but patients with known active cancer tended to do poorly, with only a 3-month median survival.ConclusionA spontaneous pneumothorax is rare, and patients with known active cancer tend to do poorly. However, even patients with no known active cancer are at risk, perhaps in part from smoking. The fact that patients with no known active cancer can live for years after this event suggests that the pneumothorax should not be assumed to be related to cancer recurrence, that cancer restaging is not always mandatory, and that there is justification for managing the pneumothorax in this subgroup aggressively

    Uses of cetyl cacaoateTM in lipstick development: sensory evaluation

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    The use of Cetyl CacaoateTM in lipstick formulation was evaluated by varying the porpotion of waxes mixture among carnauba wax, jojoba ester and Cetyl CacaoateTM based on Simplex centroid {3,3} experimental design. Sensory evaluation was carried out by nine trained panels using quantitative descriptive analysis (QDA) method. The attributes agreed in the sensory languages development session were easy to apply, off flavor, hardness, texture, moist, appearance on lip after use, glossy, oily, comfortability after use, and long lasting. Results showed that Cetyl CacaoateTM increased the score of easy to apply but decreased the score for hardness. Cetyl CacaoateTM in the lipstick formulation increased the oily feels whereas carnauba wax gave less oily effect. No off flavor was detected for all the samples. However, the panels had different perception on comfortability after use, and long lasting. The ratio of cosmetic waxes in lipstick formulation which gave scores close to reference sample were 1/2 Cetyl CacaoateTM : 1/2 jojoba ester and 2/3 Cetyl CacaoateTM : 1/6 jojoba ester : 1/6 lilin carnauba

    Kadar Vitamin C, Mutu Fisik, Ph Dan Mutu Organoleptik Sirup Rosella (Hibiscus Sabdariffa, L) Berdasarkan Cara Ekstraksi

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    Rosella flower contains vitamin C that is 260-280 mg in 100 grams. Rosella can be processed into syrup, extracts of roselle can be done by heating or without heating. The purpose of this study was to determine the effect of extraction of the vitamin C content, physical quality, pH and organoleptic quality of roselle syrup. This research using completely randomized design with 2 treatment by extraction and 13 replicates. Analysis of vitamin C oksidimetri method, measurement of total dissolved solids using handrefraktometer, measurement of viscosity using viskosimeter, measurement of pH using a pH indicator. Results showed that vitamin C in fresh rosella flowers as much as 144 mg/100 grams, moisture content and pH of 73.415% fresh roselle 2. Extraction effect on vitamin C content rosella syrup because, but did not affect the physical quality of rosella syrup. Panelists favored from the extraction of roselle syrup by heating

    Medium Optimization for the Production of Lipidless Biomass By Cunninghamella sp. 2A1 Using Response Surface Methodology

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    A statistical design approach has been used to optimize the production of biomass by Cunninghamella sp. 2A1, evaluated based on lipidless biomass. A 2^3 full factorial central composite design (CCD) was chosen to study the combined effects of three factors; ammonium tartrate, peptone and glucose concentrations. The p-value for each factor was <0.05 suggesting that these factors have significant effects on the production of lipidless biomass. The production is represented by a linear model with p-value <0.0001. The optimized medium consisting of 3.86g/L ammonium tartrate, 55.84g/L glucose and 7.73g/L peptone predicted a lipidless biomass of 16.83g/L. Results from four replications based on the optimized medium produced an average of 18.48g/L lipidless biomass, which is in close agreement with the predicted value. The coefficient for glucose was the highest indicating it to be the most significant factor affecting lipidless biomass production
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