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INDONESIA
Program Kreativitas Mahasiswa - Penelitian
Published by DITJEN DIKTI KEMDIKBUD RI
ISSN : -     EISSN : -     DOI : -
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Articles 105 Documents
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EKSTRAKSI MINYAK ATSIRI DARI DAUN DAN BATANG CENGKEH DENGAN METODE HYDRO-DISTILLATION DAN STEAM-HYDRO DISTILLATION UNTUK MENINGKATKAN NILAI TANAMAN CENGKEH DAN MENENTUKAN PROSES EKSTRAKSI TERBAIK Santoso, Joko; Hutama, Fajar Mardhi; Lystyoarti, Fatina Anesya; Nilatari, Lidya Linda
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

The largest component contained in clove oil is eugenol by 70-80%. The purpose of this research is to study the process of extracting cloves oil use steam-hydro distillation and steam distillation method by microwaves. In addition, studying the factors that influence the extracting process such as power of microwaves, treatment of materials (mesh size 8 and 4 mesh), and the mass of material to the yield and quality of clove oil produced. The operating conditions for these two methods is the mass of 50, 80, 140, and 170 grams, atmospheric pressure (1atm), and temperature of 110oC steam. From the research, can be concluded that the hydro steam distillation method is the best extraction process.Keywords:  clove oil, eugenol, steam hydro distillation
HUBUNGAN SENYAWA FLAVONOID DARI KULIT BATANG Erythrina Fusca L. DENGAN UJI AKTIVITASNYA SEBAGAI SUNSCREEN N., Fatmawati; N., Anggreini; Y., Firmansyah M.; W., Erdityo C.; E., Yunilawati
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

The Objective of this research to isolate and identificate phenolic compounds from the stem bark of Erythrina fusca L. and determining sunscreen activity, yielded pterocarpan compound, sandwicensin. This compound isolated and purificated by various chromatographic techniques, such as liquid vacuum chromatography, flach column chromatography, and radial chromatography. Structure of sandwicensin was elucidated based on spectrophotometric method such as UV, IR, HR-ESIMS, 1H and 13C NMR also 2D NMR (HMQC and HMBC). Sunscreen activity of sandwicensin obtained by calculating % T eritema and % T pigmented from the UV Spectrophotometre showing a sunscreen activity.Keywords:  Flavonoid compound, Sanwisensin, Erythrina fusca L., Sunscreen
REPRESENTASI MAKSIM PKS DALAM TUTURAN INTERAKSI PEMBELAJARAN BI DI KELAS XI SMA 1 KEERA KABUPATEN WAJO Ayu, Sutra; Mirdawana, Mirdawana; DM, M. Nazar
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Basic Konstruk PKS is outside language used as principles of rational communications, eventhough it affects the choice in language elements, regulation, and its speech interpretation. PKS is essentially a communication rules that are beyond language. Therefore, it can be delivered speech act communicatively, if the maxim of quantity, quality, relation, and how to be noticed by the participant said. Violations maxims said into four types, namely violate,  opt out, clash, and flout. Violete occurred because the participants said not being able to use the maxim is true. Type of writing in scientific papers are qualitative approach is used because this research has the characteristics of (a) has a natural background as a source of data directly by using the researcher as a key instrument, (b) is a description, (c) concerned with the process than the results, (d) using inductive data analysis, and (e) emphasizes meaningfulness. This research is expected to solve the problem of violations Cooperation Principle. Keywords:  interaction of teaching, maxim, violation
APLIKASI MOBAJI: MENINGKATKAN PERTUMBUHAN TANAMAN DAN PENGENDALIAN HAMA PENGGEREK BATANG PADI Aulia, Desi; Ariswanto, Joko; Setiyorini, Yekti Agus; Nisa’, Choirun; Siswanto, Joko
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

One of the important pest in rice plants that triggers production declining of rice is rice yellow stem borer (Scircophaga incertulas) that can lead to crop yield failure. This pest attacks on the generative stage of rice plants and known as ‘beluk’. MoBaJi is the mixture of MOL (local microorganism), onion extract and neem seed extract which serves as a botanical pesticide and as growth acceselerator of rice plants. The experiment was conducted in the laboratory of plant protection and FP-UB’s greenhouse. The research was conducted from February to June 2014. Randomized block design (RBD) was used for this research. This research contained 6 treatments with 3 replications with different concentration in each replication, and the treatments were repeated 3 times. The observations carried out up to 90 DAT of MoBaJi with scoring method. The variables of observations included plant height, tiller number, leaf number and intensity of pest attact. The results showed that MoBaJi’s treatment provided the highest influence on the mean of plant height that reached 64.71 cm (control: 51.45 cm), increase the  tillers number (4 tillers compared to 2.8 tillers in control). The mean number of leaves in MoBaJi tratment were 26 strands (19 strands in control). The observation of pest attack intencity on the field showed that there were no visible pest attack in MoBaJi’s treatment. This results was confirmed by testing on a petridish of pests (early instars yellow rice stem borer larvae) and non-target insects (crickets). MoBaJi’s treatment was able to kill pests up to 90-100% within 4 hours without killing non-target insects, in contrast to chemical pesticides that killed both pests and non-target insects.Keywords:  Rice, rice yellow stem borer, MoBaJi
POTENSI EKSTRAK HEKSAN DAUN KAPUR (Harmsiopanax aculeatus, Harms) SEBAGAI OBAT ANTIMALARIA Salenussa, Jusuf; Wijaya, Jefry; Labetubun, Colincie Natalia; Belseran, Stenly Erwin
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Kapur plant (Harmsiopanax aculeatus, Harms) is traditionally used by Mollucans to treat malaria disease. Squeezed of young leaves which is dropped on the eye of sufferer is the way of its treatment. This research is aimed to assay haem polymerization inhibition activity, cytotoxic activity toward vero cells and to analysis chemical secondary metabolit of compound content on hexane extract of the old kapur leaves. Dried powder of kapur leaves (1 kg) is extracted by maceration technique using hexane solvent obtained 24.34g (2.43%) of hexane extract. Those extract which assayed haem polymerization inhibition on activity by Bassilico et al. (1998) method and cytotoxic test toward vero cells using MTT assay. Probit analysis has showing us that hexane extract of ripe kapur leaves were inhibit haem polymerization actively with IC50 in the amount 59.473 µg/mL and were not toxic toward normal cells with IC50 in the amount 1270.746 µg/mL. Phytochemical analysis by spray and visible reagent shown of steroid compound. Keywords:  Harmsiopanax acuelatus Harms, haem polymerization inhibition activity, cytotoxic activity, vero cell, phytochemical
EKSTRASI DEDAK PADI SEBAGAI PENGAYAAN SUMBER MAKANAN BERPROTEIN TINGGI DI SUMATERA BARAT Sari, Santi Amelia; Putri, Restika; Suparmin, Suparmin; Astuti, Widya
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

West Sumatra is an area that still has a high poverty rate is as much as 407,470 people or 8.14% of the total population. One of the effect of this situation is approximately 0.9% of West Sumatra children still suffer from malnutrition due to lack of nutrition, especially protein. By extracting the rice bran, will be acquired proteins that can be used to ensure adequate intake of proteins which have not fulfilled. It’s caused by soybean price instability which has been used as a source of protein for most of the population of West Sumatra. By varying the alkaline solution, pH and extraction time will be obtained optimum conditions to obtain the highest protein concentrate that can be used as an alternative protein source. For the determination of protein content contained in each sample was used Kjeldahl method. Having done this research, was obtained the optimum conditions is KOH solution with extraction time was 3 hours and pH 10. Based on the results of ANOVA test shows that the extraction time and extraction pH have significant effect on the yield of concentrate protein. But, extraction solution factor didn’t have significant effect.Keywords: Extraction, Rice bran, Enrichment, Sources of food, High protein
Penentuan Tanggapan Amplitudo dan Sensitivitas Hasil Ekstrak Daun Sirsak Untuk Tujuan Radiografimedis Dety Lestari, Anastasia Kadek; Patti, Yoseph Nikolaus; Salu, Viktorinus Sesarius; Wabang, Keszya
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

It has been investigated about Electron Spin Resonance spectra of Sour-sop Leaves (Annona muricata L) extract compound from Kupang distric. The aim of this research is to determine the amplitude response and sensitivity of sour-sop leaves extract compound to X-ray radiation. In this research, sour-sop leaves extract compound is obtained by maceration extraction method using n-Hexane and ethanol pro analysis solvent, then its extract is evaporated. Furthermore, it is conducted annealing process to obtain its powder. Samples of sour-sop leaves extract compound were weighed 0.2 grams then be irradiated with X-rays voltage of 70 kV - 85 kV at RSU Prof. W.Z. Yohanes Kupang. The dose rate were obtained in this research is from 8,69 x 10-8 Gy/hour to 9,91 x 10-8 Gy/hour. Subsequently, these samples was calibrated using an Electron Spin Resonance Spectroscopi in Physics Laboratory, Science and Technique Faculty - Nusa Cendana University . Based on research data analysis result, amplitude response and sensitivity of sour-sop leaves extract are obtained 9,45 Volt/kg - 10,8 Volt/kg and 9,20 x 10 -9 Gy.kg/h.Volt - 9,22 x 10 -9 Gy.kg/h.Volt respectively. Amplitude response of sour-sop leaves extract compound is linear to the absorbtion dose rate and its sensitivity is relatively constant to dose rate. Based on amplitude response and sensitivity value, sour-sop leaves extract compound is potential to use as an alternative active material in dosimeter for medical radiography purposes. Keywords : Sour-sop leaves, amplitude response, sensitivity, medical radiography
UJI AKTIVITAS ANTHELMINTIK EKSTRAK ETANOL DAUN PEPAYA PADA CACING GELANG BABI Mahatriny, Ni Nyoman; Sanggra Payani, Ni Putu; Suwanti Devi, Pande Ketut; Yulita, Santri; Astuti, Ketut Widyani; Made Oka, Ida Bagus
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Papaya leaves ethanol extract was evaluated for anthelmintic activity on pig roundworm by in vitro assay. The aim of this research is to know whether papaya leaves ethanol extract has anthelmintic activity and to determine LC100 and LT100 values of papaya leaves ethanol extract. Anthelmintic activity test was done by using 7 groups with 3 repetition. Group I soaked in CMC-Na 0,5% as control negative; group II soaked in albendazole suspense 0,6% as control positive; groups III-VII soaked in papaya leaves ethanol extract suspense (0,6%; 1,2%; 2,4%; 4,8%; and 9,6% respectively) for 40 hours. Observation was done every 2 hours to know mortality of pig roundworm. Percentage of pig roundworm mortality were analyse by Kruskal-Wallis test along with Mann-Whitney test. LC100 and LT100 value was determine using corrected probit analysis. Papaya leaves ethanol extract at dosage 1,2%; 2,4%; 4,8%; dan 9,6% has a anthelmintic activity because gives a significant value in mortality of pig roundworm if compare with control negative (p<0,05). From corrected probit analysis papaya leaves ethanol extract has LC100 in 8,301% b/v and LT100 in 28,885 hours.    Keywords:  Anthelmintic, Papaya leaves, LC100, LT100.
SINTESIS KATALITIK 2,2-DIISOPROPOKSIPROPAN DARI ISOPROPANOL UNTUK MENINGKATKAN ANGKA OKTAN BAHAN BAKAR TERBARUKAN Rianto, Agus; Islamiyah, Islamiyah; Pambudi, Khoir Eko; Al Mufih, Abdul Afif
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Research has been carried out 2,2-diisopropoksipropan catalytic synthesis of isopropanol to increase the octane number of renewable fuels. Catalytic Synthesis using Cu catalyst that falls on activated carbon (Cu / AC) for use as a process of dehydration of isopropanol to 2.2-diisopropoksipropan. This study also aims to obtain the optimum time and temperature for the dehydration of isopropanol. Preparation of carbon carried by softening coconut shell charcoal to 60-80 mesh size, then heated at a temperature of 800 ° C, washed, dried, impregnated with CuCl2 and reduced at 400 ° C with flowing hydrogen gas. The amount of metal content of Fe, Ca, and K in the carbon after the process of washing / soaking determined using Atomic Absorption Spectroscopy (AAS). Activated carbon and catalyst acidity was determined by adsorption of ammonia, isopropanol dehydration process with catalyst Cu / activated carbon (Cu / AC) carried out in an electric furnace with temperature variation: 250; 300; 350; 400; and 450 ° C and the variation in the amount of catalyst amount: 6; 8; and 10 grams, with N₂ flowed at a rate of 20 mL / min as the carrier gas, and no water vapor. Dehydration results in vapor cooled condenser and then collected for analysis by gas liquid chromatography (GC) and gas chromatography mass spectrometry (GC-MS). The results of the analysis using AAS showed that the presence of washing, soaking using 3 M HCl, the metal Fe, Ca, and K in the activated carbon is significantly reduced. The results of ammonia adsorption analysis showed that activated carbon and Cu / AC has acidity, respectively for 2.962 and 4.911 mmol / g. Catalytic activity of Cu / AC highest achieved at a temperature of 450 ° C with a catalytic amount of 10 grams of 2,2-diisopropoksipropan produce as much as 61.82%.Keywords:  Catalytic Dehydration, isopropanol, 2,2-diisopropoksipropan, Cu / activated carbon
PENGARUH CUKA SALAK TERHADAP PENURUNAN GLUKOSA DARAH DAN HISTOPATOLOGI PANKREAS TIKUS DIABETES Hamidatun, Hamidatun; Mandasari, Oty Kiki; Rosdiana, Indri; Widiyana, Septina Dwi
Program Kreativitas Mahasiswa - Penelitian PKM-P 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Diabetes mellitus is indicated by elevated levels of blood glucose and progressive changes of the structure of pancreatic islet histopathology. Salacca vinegar made from suwaru salacca is one of alternative medicine of diabetes because contain acetate acid and antioxidant. The aim of this study is to investigate the effects of salacca vinegar on blood glucose and histopathologycal of pancreas of diabetic rats. This research is based on Pre and Post Test with Control Group Design. Ratus norvegicus rats were divided into 4 groups. There were normal group, diabetes, diabetes + salacca vinegar 0,4mL and diabetes + salacca vinegar 0,7mL. The results indicated that salacca vinegar had a significant blood glucose lowering effect diabetic rats. Group of diabetes + salacca vinegar 0,4mL reduced glucose concentration of 35,06%, diabetes + salacca vinegar 0,7mL of 32,50%. Based on histopathologycal of pancreas showed that salacca vinegar recover pancreatic beta cells damaged. Conclusion is salacca vinegar had a significant blood glucose lowering effect and recover pancreatic beta cells damaged. Keywords:  Blood glucose, Diabetes Mellitus, Pancreas Histopathology, Salacca Vinegar

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