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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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WAKTU OPTIMUM FERMENTASI LIMBAH PULP KAKAO (Theobroma cacao L.) MENGGUNAKAN KULIT BAKAU (Sonneratia sp.) DALAM PRODUKSI BIOETANOL Kristiani K, Putu; Sabarudin, La Ode; Melati, Rima; Haeruddin, Haeruddin
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Bioethanol is ethanol that produce by glucose fermentation (sugar) that continuo by distillation process.  The one matter that can be use as basic materials of bioethanol that is liquid waste of pulp cocoa that coming from waste cocoa plantage  the one composer component of pulp liquid is sugar as 8-13 %. With the sugar component, so the pulp liquid as economical it can be use as the basic material the making of bioethanol by fermentation process. This research aim to produce bioethanol from the liquid waste of cocoa pulp. (Theobroma cocoa L) by using mangrove skin (sonneratia sp.). As the pure inhibitor formation of acetic acid  by the fermentation further become ethanol. The mangrove skin play role to accelerate the fermentation process to produce ethanol. It also can hamper  (inhibitor) the fermentation process  continuing  became acetic acid. The data analysis in this research use complete random plane with the time variable fermentation and repetition is done  as may as 3 time. The result of the research show that the optimum time of fermentation it is in the 12 day, by 7,5 gram mangrove skin powder, pH 5 and the fermentation temperature  25-30 0C (ROOM TEMPERATURE) it gets level of alcohol 7,69 %.Keywords: bioethanol, fermentation, cocoa pulp, mangrove skin.
IMPLEMENTASI CROSS LAYER ENCHENCHED PACKET SCHEDULING PAKET MULTIMEDIA UNTUK JARINGAN OFDM UPLINK DI BAWAH REDAMAN HUJAN Kalimuddin, Dylan Adhytia; Riza, Oxy Primasetya; Kurniawan, Tri Wahyu
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

In the previous network, optimization is often done on a separate layer and the result is less than optimal. Therefore, developed a new scheme to combine multiple layers of network protocol called Cross-Layer, for example in the physical layer and link layer. In this final project will be evaluated applying Cross-Layer Optimization methods with emphasis on the evaluation of scheduling schemes of OFDM uplink transmission of multimedia data packets using Enhanced Cross-Layer Packet Scheduling (CEPS) under rain attenuation. The results showed that the use of scheduling CEPS give effect to video and voice traffic is real-time priority in scheduling and packet loss and delay as small as possible while the data traffic (FTP) with a delay that can be tolerated can log buffer considering fairness and physical layer conditions.                          Keywords: OFDM, CEPS, Fairness, Rain Attenuation, Physical Layer
SINTESIS PADUAN KOBALT MELALUI TEKNIK PELEBURAN DAN KARAKTERISASINYA SEBAGAI IMPLAN TULANG PROSTHESIS Normasari Susanto, Efinda Putri; Indriani, Arista; Himawati, Umi; Aminatun, Aminatun
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Cobalt-based alloys are widely used to be prosthesis because of their excellent properties. In this work, cobalt alloys variation of Cr have been synthesized by smelting method and accompanied by rolling process. The evaluated material properties show that microstructure dominant by γ phase. It was also found that the whole process of synthesis have good solubility. Hardness value show variation of 33% Cr include on the range of ASTMF75 that is 345,24 VHN. Corrosion test result show variation of 31,5% and 34,5% Cr satisfy corrosion rate of Europe standard (0,457 mpy). But on the other hand, they have good biocompatibility.Keywords: Cobalt alloys prosthesis, microstructure, hardness value, corrosion rate, cytotoxicity.
PEMANFAATAN POLISTIRENA LIMBAH BUNGKUS MAKANAN DAN ZEOLIT ALAM SEBAGAI MEMBRAN KOMPOSIT POLISTIRENA TERSULFONASI/KITOSAN VANILIN/ZEOLIT UNTUK APLIKASI MEMBRAN POLIMER ELEKTROLIT DALAM SEL BAHAN BAKAR (FUEL CELL) Surya D, Rachmat; Pramono, Edi; Crysandi, Ryan; Hartini, Hartini
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

 Research the manufacture of composite membranes waste sulfonated polystyrene, vanillin chitosan, polyethylene glycol and natural zeolites have been carried out. This study aimed to determine the effect of sulfonation and the addition of natural zeolite on the value of cation exchange capacity, swelling degree, and thermal properties of the composite membrane. Polystyrene sulfonated polystyrene was made by sulfonation method that was isolated from sterofoam wrap food waste. Composite membranes made with the addition of natural zeolite and polyethylene glycol variation (w/w). Cation exchange capacity analysis results showed an increases in the value of the variation of the addition of natural zeolite and polyethylene glycol. Fourier Transform Infra Red analysis showed the entry of sulfonate groups on polystyrene characterized by the absorption at a wavelength of 1180.44 cm-1 indicating the presence of symmetric vibrations of functional groups S=O. Inclusion of vanillin in chitosan group characterized by vibrational C=N (imine) at wave number 1636.76 cm-1 and loss of C=O absorption peaks at wave numbers aldehyde group in vanillin at 1666.50 cm-1. All membranes variations have low homogenity. All variation on the thermal test showed that the more the composition of the zeolite or PEG increases the thermal resistance of the membrane. Membrane that has the potential to be applied to the fuel cell is the addition of zeolite membranes with 3% and 6% polyethylene glycol by cation exchange capacity of 0.957 meq/g, 28.75% Swelling Degree and thermal resistance to a temperature of 250oC.Keywords: Cation exchange capacity, chitosan vanilin, natural zeolite, polymer electolite membrane, sulfonated polystyrene
ARTIFICIAL MATURATION: INCREASE THE SPEED OF GONAD MATURATION, EGGS QUALITY AND PRODUCTIVITY OF CLIMBING PERCH (Anabas testudineus Bloch) Prihardianto, Raditya Wahyu; Garnama, Rangga; Kesuma, Rudy Angga; Nurjanah, Lilis
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Climbing perch (Anabas testudineus, Bloch) is one of freshwater fishes having the potential to be developed as it has a fairly high economic value. Culture of climbing perch in Indonesia is still under developed because of some barriers that occur in the culture system such as the availability of seed, broodstock rematuration requires long time about three months and influenced by the season.  Application of egg stimulant that having complete substances may support climbing perch productivity in terms of increasing egg production, shorter time to mature, and improving eggs quality. This research was aimed to gain techniques and effective egg stimulant dose to produce good quality eggs. Doses of eggs stimulant used were 1 g/kg, 2 g/kg, 3 g/kg diet, without eggs stimulant (control) and control+starch. Fish were reared for 45 days (up to mature egg) and fed twice a day.  The results showed that eggs stimulant dose of 1 g/kg diet allowed best gonad maturation and fastest compared to other treatments and control. Thus, this could be used to accelerate broodstock maturation to support seed production of climbing perch in near future.Keywords: Anabas testudineus, seed production, artificial maturation, egg stimulant
ALAT PENDETEKSI KUALITAS BIJI KOPI UNTUK KOPI PAPAIN (KOPI CITARASA KOPI LUWAK TANPA MENGGUNAKAN LUWAK) DENGAN METODE PENGUKURAN NILAI KAPASITANSI Hidayati, Layla Febry; Setiarini, Yuliana; Aliman Hakim, Haki Midia
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Has realized a detection tool quality coffee beans to coffee papain using the principle of measurement of the capacitance. The working principle of this tool is to use a conveyor which serves to select the color of coffee beans and a capacitive sensor to measure the capacitance value of the coffee beans. The research that has been conducted producing good quality coffee beans that is red and has a rated capacitance range between 160 fF -170 fF. The coffee beans that has been retrieved is evidenced by the conventional method of soaking in water, where the range of 160 fF -170 fF the coffee beans submerged. Compared to manual, this technique is more effective because it can generate data capacitance can be used as a reference to identify the range of good quality coffee beans and of poor quality.            Keyword: capacitance, range 160 fF -170 fF, quality coffee bean
STUDI OPTIMASI ANALISIS LOGAM CO DAN NI SECARA VOLTAMMETRI STRIPING ADSORPTIF (ADSV) UNTUK PENENTUAN LOGAM DALAM KONSENTRASI RUNUT Putri, Raesa Pratiwi; Agustiva, Agustiva; Pratiwi, Vanella Indah; Deswati, Deswati
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

The research of the determination of Co(II) and Ni(II) by adsorptive stripping voltammetry have been done. The method used to determine the concentration of cobalt and nickel in trace (ultra trace) with calcon for Co (II) and DMG for Ni (II) as a complexing agent. The parameters  studied were variation of calcon or DMG concentration, pH, accumulation potential and accumulation time. In this study, the optimum conditions were calcon concentration of 0.7 mM for Co (II), DMG concentration of 0.8 mM for Ni (II), pH 6 for Co (II) while pH 9 for Ni (II), accumulation potential -0.3 V and accumulation time of 70 s for the Co (II) and 220 s for the Ni (II). At optimum conditions the relative standard deviation were 0.75% and 1.54%  for Co (II) and Ni (II) respectively for  ten replicates (n= 10) measurement of 10 µg /L standard solution Co(II) and Ni (II).  The method was applied to the direct   determination of Co(II) and Ni(II) in  the Stones River water rot, tap water and sea water Bungus Padang, with recovery of 106.5% and 102%. for Co(II) and Ni(II) respectively.  Keywords: voltammetry, Stripping, adsorptive, trace concentrations.
FORTIFIKASI EKSTRAK KULIT JERUK BALI PADA SUSU TINGGI KALSIUM: TEROBOSAN BARU DALAM PENGATASAN OSTEOPOROSIS PADA WANITA MENOPAUSE, TERUJI IN VIVO DAN MOLECULAR DOCKING Dianingati, Ragil Setia; Novarina, Annisa; Hana, Amanita Khoiril; Muntafi’ah, Laeli
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Osteoporosis has one of the cause is lack of estrogen hormone. Commonly prevention therapy is by consuming high calcium milk, but it is not effective. Bali orange’s peel (Citrus maxima Merr.) is a waste material but contains phytoestrogen according to previous study. Considering of this result, fortification of high calcium milk and bali orange’s peel is expected to be an effective solution for osteoporosis in menopause woman. This research began with extraction of bali orange’s peel (BPE) in ethanol 70% by using maceration method. Ovariectomized Sprague dawley female rats are the model of post menopausal woman were treated by BPE for 28 days. The doses of BPE was given to rats 500 and 1000 mg/Kg BW combined with high calcium milk. Bone density was determined using digital microradiography, the profile showed the increase of bone density in group that treated with combination of BPE 1000 mg/Kg BW and high calcium milk compare to control and given only milk groups. Docking molecular showed that BPE active compound which are hesperidin and naringin could have interaction with estrogen receptor α and β. Overall, the result of this research showed that fortification of BPE with high calcium milk has good prospect to develop as effective therapy of osteoporosis. Keywords: Citrus maxima, phytoestrogen, osteoporosis, high calcium milk, estrogen receptor
APLIKASI KAYU SECANG (Caesalpinia sappan L.) DALAM UPAYA PREVENSI KERUSAKAN DNA AKIBAT PAPARAN ZAT POTENSIAL KARSINOGENIK MELALUI MNPCE ASSAY Sugiyanto, Raisatun Nisa; Putri, Shofy Rahmadani; Damanik, Ferina Septiani; Sasmita, Gusti Made Aryandana
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Genotoxic effect is related to the mutation of the gene in the DNA. Caesalpinia sappan L. is one of Caesalpiniaceae family found in Indonesia containing brazilin and brazilein. It has been reported to have antioxidant activity and could potentially be used in the prevention of DNA damage. The aim of this study is to know the activity of Caesalpinia sappan L. ethanolic extract (CEE) as antigenotoxic agent. Caesalpinia sappan L. heartwood was macerated with 70% ethanol. The antigenotoxic activity was observed by micronucleus assay in vivo modeled by cyclophosphamide-induced female Swiss mice. CEE treatment was done with the dosage of 250, 500, and 1000 mg/kgBW. Mice peripheral blood was taken in the end of the study and observed for the number of mononuclear polychromatic erythrosite (MNPCE) by Giemsa staining. Molecular docking was done to evaluate the affinity of brazilin, brazilein, and cyclophosphamide to CYP 3A4 enzyme. Based on the study, CEE has antigenotoxic activity showed by the number of MNPCE which is reduced significantly compared to cyclophosphamide control group. The mechanism of antigenotoxic activity is probably because of the inhibition of cyclophosphamide binding to CYP 3A4 enzyme by brazilin and brazilein, as the affinity to CYP 3A4 of brazilin and brazilein were higher than cyclophosphamide.            Keyword: Antigenotoxic, MNPCE Assay, Caesalpinia sappan L.
MASTECH (MASTITIS DETECTION TECHNOLOGY) METODE DETEKSI MASTITIS BERBASIS BIOSURFAKTAN ASAL Pseudomonas sp Pratomo, Faizal Agung; Zobda, Paura Rangga; Shanda, Farras; Wildan, Muhamad; Putra, Dimas Rizky Eerste
Program Kreativitas Mahasiswa - Penelitian PKM-P 2013
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

Today, the needs of milk in Indonesia is increasing, while in terms of quality can’t meet national needs. One reason is mastitis disease. Mastitis is inflammation of udder that marked changes in physical and chemical milk with or without pathological of the mammary gland. Mastitis detection currently used is California Mastitis Test (CMT), CMT weakness is expensive and use of chemicals. so that, necessary new methods, one of which uses biosurfactants. The advantages of using biosurfactants are environment receiving, as biodegradable and non-toxic. Biosurfactants have potential in management and protection of the environment, so it could be mastitis detection tool. Keywords: Milk, mastitis, CMT, biosufactants, Pseudomonas sp.

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