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BUANA SAINS

buanasains
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Published by Universitas Tribhuwana Tunggadewi

ISSN : 14121638 EISSN : 25275720 DOI : -

Core Subject : Science, Education,

Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

BUANA SAINS p-ISSN : 1412-1638 | e-ISSN: 2527-5720 is a double-blind peer-reviewed, open-access journal, published by UNITRI PRESS. It publishes original and applied research in all areas of natural science. The Editorial goal is to provide a forum exchange and an interface between researchers and practitioners in any natural science related field.

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Articles 500 Documents

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KAJIAN EKONOMI USAHATANI KUBIS DI KECAMATAN SUKAPURA KABUPATEN PROBOLINGGO Ana Arifatus Sa’diyah; Rikawanto Eko Muljawan
BUANA SAINS Vol 11, No 2 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Probolinggo Regency especially Sukapura is one of cabage production center area since this area is very suitable for cabage plants. Some problems are always faced by the farmers in that area was restrictiveness of capital such as wide of land, seeds, fertilizer, medicines, and employees. This research aimed to find out the productivity of cabage, factors affecting cabage production, income of farmer business entity of cabage, and efficiency of product ion cost at farmer business entity of cabage. The research method used was descriptive and correlation method, by determining the area purposively (purposive method). The method used to take the example was Disproportionate Stratified Random Sampling Method by stratum of area’s height. The data collection was done by using primary and secondary data. The data analysis used covered: (1) analysis of productivity index to know the productivity of cabage, (2) analysis of production function of Cobb-Douglas to know the factors affecting the cabage productivity, (3) analysis of income to know the profit of cabage farmers, and (4) analysis of R/C ratio to know the efficiency of production cost at farmer business entity of cabage. The research result done showed that: (1) the cabage productivity was 31,500 kg/ha; (2) the cabage productivity was affected by the wide of land, seeds, fertilizer, medicines, employees, and height of location, (3) the farmer business entity of cabage was profitable, and (4) the use of production cost at farmer business entity of cabage was efficient (R/C = 2,33)

AKTIVITAS ANTIBAKTERI ASAP CAIR DARI LIMBAH TEMPURUNG KELAPA TERHADAP DAGING KELINCI ASAP Pramono Sasongko; Wahyu Mushollaeni; Herman Herman
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Rabbit meat is the alternative of protein source with high nutrition value, but susceptible to contamination by spoilage bacteria. The application of liquid smoke coconut shell based could be the of developed method to overcome the problems of bacterial contamination. This study was conducted to determine the effect of immersion liquid smoke coconut shell to the total number of bacteria in smoked rabbit meat. Treatment of various concentrations of liquid smoke were used in the production of smoked rabbit meat were 0% 1%, 1.5%, 2% and 2.5% (v / v). Based on the analysis results, it can be concluded that the use of 2% liquid smoke concentration can provide an effective antibacterial effect. The total number of bacteria based on the method of Total Plate Count shows this concentration can decrease the amount of bacteria up to 99.9% with the results of 0 CFU / g

PENGARUH KOMPOS AMPAS SAGU DAN PLANT GROWTH PROMOTION RHIZOBACTERIA (PGPR) TERHADAP PERTUMBUHANDAN HASIL KACANG TANAH (Arachis hypogeal L.) Saerah Adam; Mochamad Dawam Magfoer; Didik Haryono
BUANA SAINS Vol 18, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

The aims of this research is to find out the influence of the application of sago waste compost and PGPR on the increase in groundnut growth and yield and to obtain the dose of sago waste compost and PGPR concentration that able to increase the growth and yield of groundnut had been conducted in January to March 2016 in Maba Sangaji Village, Kota Maba Subdistrict, East Halmahera Regency. The research used factorial randomized complete block design consisting of two factors with three replication. Factor I was the dose of sago waste compost consisted of four levels: K0 = without sago waste compost (control), K1 = sago waste compost of 10 t ha-1, K2 = sago waste compost of 15 t ha-1, and K3 = sago waste compost of 20 t ha-1. Factor II was concentration of Plant Growth Promoting Rhizobacteria (PGPR) consisted of 4 levels: P0 = without PGPR (control), P1 = PGPR of 5 ml l-1, P2 = PGPR of 10 ml l-1, and P3 = PGPR of 15 ml l-1. The observation consisted of growth components of plant height, the number of leaves, leaf area, crop dry weight, and crop growth rate, and yield components of the number of pods, filled pods, empty pods, pod weight, grain weight, and weight of 100 grain. Research result shows that there was no interaction between the treatment of sago waste compost and PGPR. However, separately, treatments of sago waste compost and PGPR had the significant influence on the growth and yield of groundnut. The highest groundnut yield was obtained in the treatment of sago waste compost with the dose of 20 t ha-1. Grain weight obtained was 17.51 g or an increase of 52.15% compared to those of treatment without application of sago waste compost and yield of grain weight per hectare was 2.80 t ha-1. The inoculation of PGPR increased the growth and yield of groundnut. The application of PGPR with the concentration of 10 and 15 ml-1 produced better crop growth. The higher result was obtained in the treatment of PGPR with the concentration of 10 and 15 ml l-1with grain weight of 15.46 g and 16.81 g plant-1 or an increase of 31.15% and 42.6%, respectively, compared to control,whereas, grain weight per hectare was 2.47 t ha-1 and 2.69 t ha-1, respectively.

POTENSI TANAMAN MAKROHIDROFITA DAN SEMIHIDROFITA UNTUK REMEDIASI LIMBAH CAIR PABRIK TAPIOKA Eko Rini Indriyatie
BUANA SAINS Vol 7, No 2 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

Potensial role of a macrohydrophyte plant (Veyivera zizanioides) and four semihydrophyte plants (Ipomoea aquatica, Cyperus iria, Commelina nudiflora, Oryza sativa) as remediators of liquid waste of tapioca industry was tested in a glasshouse for 35 days under conditions that resemble to wet and polyculture systems. Results dhowed that all type of plants grew normally on media containing tapioca liquid waste. Total biomass of Ipomoea aquatica and polyculture grown in wet conditions were 32,35 g and 38,44 g, respectively. This were higher than those of control (30,53 g and 36,39 g). Those of V. zizanioides, Cyperus iria, Commelina nudiflora and Oryza sativa were inversely observed. Hawever, V. zizanioides showed the highest tollerance index value (120,99%) compared to that of Ipomoea aquatica (91,21 %), Cyperus iria (56,62 %), Commelina nudiflora (89,63 %), Oryza sativa (83,13 %), and polyculture (62,25 %)

PEMBUATAN ES KRIM KACANG MERAH DENGAN PENAMBAHANVIRGIN COCONUT OIL DAN KUNING TELUR Sri Winarti; Nana Dyah; Sulistyowati Sulistyowati
BUANA SAINS Vol 6, No 1 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

Ice cream kidney bean was made from ekstrak kidney bean (Phaseolus vulgaris). Extract kidney bean had added value because no cholesterol, hight contain of protein and mineral, had specific flavor and hight contain of dietary fiber. Extract kidney bean low contain of fat (0,645%). When will made ice cream from extract kidney bean, its must to added on fat and emulsifier for produce good emultion. VCO is one of fat wich have functional and egg yolk contain lecitin as good nature emulsifier. The purpose of this research was to found the concentration of VCO and egg yolk for produce good quality of ice cream kidney bean. Experiment design in this research was Random Design with 2 factor, i.e.concentration VCO (6%, 8%, 10%, 12% and 14%) and egg yolk (3%, 4,5% and 6%), each combination twice experiment. The result on this research show that the best treatment was 6% concentration of VCO and 6% egg yolk. This treatment produce ice cream kidney bean with 8,1196% fat contain, 4,595% protein contain, 30,8% total soluble solid, 53,705% overrun, 1,035% stability of emultion and organoleptic teste 6,53 (very like), colour 6,4 (like), texture 6,93 (very like)

FAKTOR-FAKTOR YANG MEMPENGARUHI HARGA BERAS DI JAWA TIMUR Rikawanto Eko Muljawan; Robertus Belarminus Alibaba
BUANA SAINS Vol 9, No 2 (2009)
Publisher : Universitas Tribhuwana Tunggadewi

Rice strategic position had been important issue since 1998 until 2007. There has been an increasing of rice price, even thought it was slow but sure, at February 2007, which rice price, became the highest price since ever, Rp 6000/kg for medium quality. That increasing of the price are affected by the lack of rice stock in the market in consequence of low rice supply from farmers corresponding to natural disasters and seasonal diversity in some rice production centrals, included East Java province. The production decreasing has an effect on output price became high in proportion to fixed demand. This situation turned out to be worse with the country condition has not been recovered from economic crisis, hence buying power of people turned into low. However, others have not substituted the dependence of the public toward rice at the level of rice as Indonesians’ staple food. This research aims to learn factors influenced rice price in Surabaya city, Malang Region and Sidoarjo Region. The research utilized secondary data during five years since 2002 until 2006 with using linier regression analysis method. Research result shows factors influenced rice price in Surabaya are corn price, cassava price, flour price, and inflation rate; while factors influenced rice price in Malang and corn price, cassava price , and flour price

EVALUASI ESTETIKA LINGKUNGAN BERDASARKAN PERSEPSI DI WELCOME AREA KAMPUS INSTITUT PERTANIAN BOGOR Debora Budiyono
BUANA SAINS Vol 15, No 1 (2015)
Publisher : Universitas Tribhuwana Tunggadewi

Welcome area on the campus of Bogor Agricultural University is an important element in an institutional area. Evaluation of environmental aesthetics done by the method of Scenic Beauty Estimation and the Semantic Differential. The purpose of the study: a) determine and assess the environmental quality of the area based on the shape and color of the tree; b) determining the level of beauty is based on the perception of the respondents; c) determine the preferences of respondents to the arrangement of landscape design welcome area based on the shape and color of the tree; and d) evaluate the visual quality of the landscape based on the estimation of beauty. The tools used: cameras, Photoshop CS 3 software, Minitab 16, and Acer 4741G. The study includes five stages: 1) the identification and study of the literature on the welcome area of IPB, 2) determining the location of the study, 3) making the landscape point (vantage point), 4) modification of existing photos based character visual closure, 5) assessment visitors through questionnaires. The concept of landscape which has the highest value to lower the concept of landscape 3 worth 91.1, the concept of landscape 4 worth 90.9, 2 worth 89.2, the concept of landscape 5 worth 78 and the lowest landscape landscapes existing concept of value 0. The highest concept is the concept of landscape 3, shows that the respondents wanted the landscape in accordance with the theme is a memorable landscape warm, cheerful, grand or large, formal, focused, open or bright, spacious, unique, and strong character. The landscape evaluation welcome IPB campus area, is expected to be a recommendation in the planning and design of the IPB campus

HUBUNGAN ANTARA DEKOMPOSISI DAN PELEPASAN NITROGEN SISA TANAMAN DENGAN DIVERSITAS MAKROFAUNA TANAH Sugiyarto Sugiyarto; M.P. Setyaningsih
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

A comparative study of decomposition rate and nitrogen release of crop residues of ‘nanas’ (Ananas commosus), ‘kimpul’ (Xanthosoma sagittifolium) and ‘kapulaga’ (Amomum cardomomum) as well as their relationships to soil macrofauna diversity was conducted in permanent boxes containing soils. Soil macrofauna used for this study were Pheretima sp, Phyllophaga sp., Lithobius sp., Calosoma sp., Blatta sp., Lycosa sp., and Narceus sp. which were previously acclimated for 2 days. Results of this study showed that the highest rate of decomposition occurred on organic matter generated from ‘kimpul’, followed by ‘nanas’ and ‘kapulaga’. The highest rate of nitrogen release was observed for organic matter generated from ‘kimpul’, followed by ‘kapulaga’ and ‘nanas’. Both rate of decomposition or rate of nitrogen release positively correlated with diversity index value of soil macrofauna

PENENTUAN UMUR PETIK DAN PELAPISAN LILIN SEBAGAI UPAYA MENGHAMBAT KERUSAKAN BUAH SALAK PONDOH SELAMA PENYIMPANAN PADA SUHU RUANG Budi Santosa; Gatut Suliana
BUANA SAINS Vol 10, No 1 (2010)
Publisher : Universitas Tribhuwana Tunggadewi

Snack fruit var. pondoh is one of perishable horticultural product its shelf life at room temperature is about of 6-7 days. This fruit is categorized as non climacteric based on its respiration type. Snack fruit should be ripe before harvesting and during storage does not undergo further ripening process. It has high respiratory rate that caused fast senescence. This research was aimed to determine harvesting time to obtain good quality and long shelf life of snack fruit. Also, it was objected to elucidate the effect of wax coatingon quality changes during storage. The harvesting time of snack fruit was 5, 6 and 7 month after pollination. The observations consisted on phisico-chemical characteristics of snack fruit. Wax coating (10%) was used to protect the fruits during storage. Glucose, fructose, sucrose and tannin was determined after harvesting. The quality of snack fruits was assesed by panelists independently. The results showed that the best harvesting time of snack fruit was 6 months after pollination. Wax coating influenced the fruit quality and also could inhibit declining of sugar and tannin content of fruit. Wax coating could improve the quality of fruits during storage up to 2 weeks

APLIKASI PENYALUT EDIBEL BERBASIS PATI KULIT PISANG DENGAN PENAMBAHAN NATRIUM METABISULFIT PADA BUAH SALAK PONDOH KUPAS Wirawan Wirawan; Budi Santosa
BUANA SAINS Vol 16, No 1 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

anana is a fruit that is abundant potential, In the city of Malang many processed food products such as banana chips, peanut butter and fried bananas. It results in a potential banana skin that has been utilized. To provide more benefits for the banana skin, it needs to be further processed into semi-finished products such as flour. Potential banana skin made of flour is very appropriate, because it contains 18.50% polysaccharides. This study aims to determine the concentration of starch and sodium metabisulfite banana peel right in edible coating to extend the shelf life of peeled barking. This study is to assess changes in quality of bark peeled coated starchcontaining anti-browning during storage. The research methods include the extraction of starch from banana skin and coating fruits with starch Salacca zalacca peeled banana skin anti enzymatic browning. Also the characterization of quality changes during storage barking Salacca zalacca peel. Research using a completely randomized design (CRD) are arranged with 2 factors. The first factor is starch banana peel which consists of 3 levels and the second factor namely Na-metabisulfite which consists of 3 levels with 3 replications. The results showed that the peel fruits Salacca zalacca edible coated with a coating giving the best average in all observation parameters namely water content (83.71%), acidity (0.28%), vitamin C (4:53%), texture (246.225 N)

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