715 research outputs found

    Pembuatan Briket Arang Daun Kelapa Sawit (Elaeis Guineensis Jacq.) Dengan Perekat Pati Sagu (Metroxylon Sago Rott.)

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    Increasing need of energy and decreasing of fuel supply requires human to discover alternative energy resources. Consequently, there should be a research to discover a new renewable energy source such as palm leaves waste. Oil palm\u27s leaves (Elaeis guineensis Jacq.) are mostly the least used waste from oil palm plantation as an alternative energy resources. This research aims to discover the precise adhesive consentration rate in sago\u27s starch (Metroxylon sago Rott.) to make oil palm\u27s kernel, which are 97%:3%, 96%:4%, 95%:5%, 94%:6%, and 93%:7%. Based on analitycal result of oil palm\u27s leaves charcoal briquet research, the best quality briquet is the P1 composition which composed rate is 97%:3%, has 3,21% water content, 30,18% ashes content, 0,0022 g/s combustion rate, 20,73% evaporated substance rate, 54,46% carbon rate, and 5.114 cal/g heat value

    Perbedaan Ukuran Partikel terhadap Kualitas Briket Arang Daun Pisang Kering

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    Dry banana leaves contain beneficial compounds lignin and cellulose which is quite high and has not been utilized optimally. Therefore, the study aims to take advantage of dry banana leaves as the main material for the manufacturing of charcoal briquettes and charcoal briquettes obtain formulations are of good quality. The study was conducted experimentally using Complete Random Design (CRD) with 6 treatments and 3 replications and continued with Duncan\u27s New Multiple Range Test (DNMRT) at level 5%. The treatmentsin the research including P0 (charcoal powder dry banana leaveswithout sieve), P1 (charcoal powder dry banana leaves20 mesh), P2 (charcoal powder dry banana leaves40 mesh), P3 (charcoal powder dry banana leaves60 mesh), P4 (charcoal powder dry banana leaves80 mesh), and P5 (charcoal powder dry banana leaves100 mesh). The result of analysis of variance showed that the particle size charcoal dry banana leaves significant effect on ash content, density, calorific value and fueled power. Selected treatment wasP3 (charcoal powder dry banana leaves 60 mesh) which has a water content 6.80%, ash content of 29.86%, a density of 0.38 g/cm3, 4646 calorific value cal/g, and fueled power 0.0016 g/sec

    Pengaruh Senioritas Dan Loyalitas Terhadap Promosi (Studi Pada Karyawan PT. Pembangunan Perumahan Dvo III Surabaya)

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    The purpose of this research is to figure out the effect of seniority and loyality with the variabel is employee seniority and employee loyality with simultaneously and partially to job promotion in the process needs of fillinf vacant position of the company to achieve goals that have been set and make company quality to be better and better. The research conducted in PT. Pembangunan Perumahan DVO III Surabaya. The number of samples respondents in this research are 36 employees of PT. Pembangunan Perumahan DVO III Surabaya with surfeited sampling. The type of this research is explatory research which uses quantitative approach. Based on the results in this research that can be a significant influence simultaneously (together – the same) employee seniorty variable (X1) and employee loyality variable (X2) on job promotion variable (Y) with the Sig. F is 0,000 that smaller than the Sig. α 0,05 (Sig. F < 0,05). Partially known that employee seniority variable (X1) significantly affect the value of the regression coefficient of 0,349 and Sig. 0,000 < 0,05. While employee loyality variable (X2) has partially significant effect on job promotion variable with a regression coefficient of 0,462 with significant value is 0,015 < 0,05

    Studi Awal: Desain Jejaring Kawasan Konservasi Perairan di Pantai Barat Sulawesi Selatan

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    This study was related to government policies , especially PP No 60 / 2007 article 19 of the mandate of the establishment of network of marine conservation areas in various levels, both local ( provincial ), national, regional and global. One aspect is the establishment of a network of ecological data availability . The method used is the spatial analysis techniques combined with field surveys in the waters of the West Coast of South Sulawesi , especially in the waters of Makassar . Research shows that the condition of each ecosystem ; seagrass with range from 32.5 to 72.5 % with an average of 54 % (Good Condition) condition of coral reef ecosystems which range covered of 17.5 to 57.5 % with an average of 39.5 , % (critical condition ) and condition of mangrove ecosystem with moderate conditions with an area 142 hectares which in the category of denc

    Daun Pandan Wangi (Pandanus Amarylifolius Roxb.,) Terhadap Aktivitas Antioksidan

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    The purposes of this study were to obtain the effect of drying time on antioxidant activity and to obtain the best quality herbal tea fragrant pandan leaves (Pandanus amarylifollius Roxb.,). This study used a completely randomized design with 5 treatments and 3 replications. The treatments used were herbal tea fragrant pandan leaves are P1 (drying 110 minutes), P2(drying 130 minutes), P3 (drying 150 minutes), P4 (drying 170 minutes) and P5 (drying 190 minutes). Data were analyzed statistically using ANOVA and DNMRT at 5% level. The results showed that the drying time significantly affected the moisture content, ash content, antioxidant activity and sensory assessment (descriptive and hedonic). The treatment chosen from the results of this research was the treatment P3(Drying 150 minutes). Treatment of P3 had a water content of 5,17%, ash content of 3,30% and antioxidant activity (IC50) of 5,68 ppm. Rate sensory descriptive and hedonic herbal tea fragrant pandan leaves treatment P3 had the colour of powdered tea that was green and the colour of brewed tea was a little green, the aroma of tea powder was scented fragrant pandan leaves and the aroma was brewed tea wasa little scented fragrant pandan leaves, taste steeping tea was a little astringent. The overall assessment of herbal tea steeping fragrant pandan leaves was slightly favored and tea powder was too slightly favored by the panelists

    Pemanfaatan Buah Pepaya (Carica Papaya L.,) dan Tomat (Lycopersicum Esculentum Mill.,) dalam Pembuatan Fruit Leather

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    This study aimed was to got exact formulation of combination of papaya fruit puree and tomato puree in the manufacture of fruit leather. This study used a completely randomized design (CRD) with 5 treatments and 3 replications. The treatments used against fruit leather were PT1 (papaya fruit puree 65%, tomato puree 35%), PT2 (papaya fruit puree 55%, tomato puree 45%), PT3 (papaya fruit puree 50%, tomato puree 50%), PT4 (45% papaya fruit puree, tomato puree 55%) and PT5 (35% papaya fruit puree, tomato puree 65%). Data were analyzed statistically using ANOVA and DNMRT at 5% level. The results showed that the use of papaya fruit puree and tomato puree significantly effect on water content, ash content, acidity (pH), fiber content, total sugar content and sensory analysis. Fruit leather chosen from the results of this study was fruit leather treatment PT2 which has moisture content 11,86%, ash content 1,03%, degree of acidity 4,39, fiber content 3,12%, levels total sugar 36,45%, reddish orange color, flavor slightly fruity papaya and tomatoes, slightly sour taste, chewy texture and overall assessment fruit leather preferred by the panelists

    Perbandingan Susu Kambing dan Susu Kedelai dalam Pembuatan Kefir

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    Tujuan dari penelitian ini adalah untuk mendapatkan rasio terbaik susu kambing dengan susu kedelai untuk menghasilkan kualitas kefir tertinggi. Rancangan Acak Lengkap (RAL) digunakan dalam penelitian ini dengan lima perlakuan dan empat ulangan. Perlakuannya adalah MS1 (susu kambing 100: susu kedelai 0), MS2 (susu kambing 75: susu kedelai 25), MS3 (susu kambing 50: susu kedelai 50), MS4 (susu kambing 25: susu kedelai 75), dan MS5 (susu kambing 0: susu kedelai 100). Parameter yang diamati adalah tingkat keasaman (pH), total bakteri asam laktat, padatan total dan kadar alkohol. Hasil penelitian menunjukkan bahwa rasio susu kambing dan susu kedelai berpengaruh nyata (P <0,05) terhadap pH, jumlah bakteri asam laktat, padatan total dan kadar alkohol. Perlakuan terbaik dalam penelitian ini adalah MS2

    Penambahan Sari Jeruk Nipis (Citrus Aurantifolia) terhadap Mutu Sirup Buah Kundur (Benincasahispida)

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    The purpose of this research was to obtain the best ratio of bligo extracts and lime extracts in the manufacturing of syrup. This research used Complete Randomized Design (CRD) with four treatments and four replication which followed by Duncan's New Multiple Range Test (DNMRT) at level 5%. The treatments in this research included KD0 (ratio of bligo extracts and lime extracts 100 : 0), KD1 (bligo extracts and lime extracts 95 : 5), KD2 (ratio bligo extracts and lime extracts 90 : 10), KD3 (bligo extracts and lime extracts 85 : 15). The result showed that the ratio of bligo extracts and lime extracts significantly affected pH, sucrose, viscosity, total dissolved and sensory value (colour, flavour , taste and overall acceptability) but are did not significant affected the sensory value viscosity. The best treatment was KD3 (bligo extracts and lime extracts 85 : 15) with pH 3,96, sucrose 65%, viscosity 295,82cP, total dissolved 70,63 obrix and sensory scores of KD3 are 2,47 (colour), 2,37 (flavour), 1,87 (taste), and comprehersive score (3,80)
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