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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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PENGATURAN LAJU MINERALISASI PANGKASAN Tithonia diversifolia DAN Lantana camara UNTUK MENINGKATKAN SINKRONISASI FOSFOR Yulia Nuraini; Neny Sukmawatie
BUANA SAINS Vol 8, No 1 (2008)
Publisher : Universitas Tribhuwana Tunggadewi

The effect of mixing of Tithonia diversifolia pruning which decomposes and mineralizes rapidly and Lantana camara pruning which decomposes and mineralizes slowly on rates of decomposition and mineralization of the prunings to improve synchronization between P released from the prunings with crop demand for P was studied in a laboratory and in a glasshaouse. Tithonia diversifolia pruning (Td), Lantana camara pruning (Lc), and farmyard manure (Pk) were thoroughly mixed with the proportion (% of dry weight) of : 25Td+75Lc; 50Td+50Lc; 75Td+25Lc; 90Lc+10Pk; 45Td+45Lc+10Pk; 100Td and 100Lc, and than mixed with 100 g of air-dried soil with a rate equivalent to 100 kg P/ha. Results of the study showed that the pruning mixtures decomposed and mineralized faster than that of Lantana camara pruning only, but slower than that of Tithonia diversifolia pruning only. The amount of P released from the mixtures increased with increasing proportion of Tithonia diversifolia pruning in the mixtures. Increasing proportion of Tithonia diversifolia pruning in the mixture applied to the soil increased the amount of P taken up by maize

EFEKTIVITAS JALUR DISTRIBUSI PENJUALAN JERUK MANISDI KECAMATAN DAU, KABUPATEN MALANG Farah Mutiara; Dwi Asnawi Nurhantanto
BUANA SAINS Vol 16, No 2 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

Orange is one type of fruit that is highly favored by the people. Citrus marketing is a whole system of business activities aimed at planning, pricing, promoting and distributing goods and services that can satisfy the needs of both the buyers there maupum potential buyers. Marketing itself serves to connect producers with consumers or also known as distributions. Distribution is the most important component, because if there is an error in this election could complicate efforts distribution of goods and services from producers to consumers.This study aimed to analyze the share, margins, and profits of manufacturers in every distribution channel of distribution channels and marketing efficiency sweet oranges in the District Dau, Malang as one of the centers of citrus production in East Java. This research is a quantitative research by questionnaire. Determination of respondents using stratified random sampling method of research. The division responen strata by strata of income. Variable observations in this study include marketing channels fruit sweet orange, the sales volume of citrus fruit once harvested (tonnes / ha), production costs incurred farmer (Rp / ha), the selling price (USD / ton), marketing costs (USD / Ha ) and the shrinkage of the product (Kg / year). Marketing efficiency oranges indicated parts prices received by farmers (25%) of the price of inputs, while 50% are owned by village traders (62.5%) value is the highest profit to retailers, amounting to Rp 3,000 to the value of margin is USD 2,328 and the value of the lowest profit are collectors of Rp 1,000 to Rp 827 margin value

FOTOPERIODE DAN PEMBUNGAAN TANAMAN Sutoyo Sutoyo
BUANA SAINS Vol 11, No 2 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Photoperiod is the relative ratio between the length of time during the night. The response is the development of the plant against photoperiod called photoperiodism. Vegetative growth that is affected is the formation of bulbs and tubers, branching, leaf shape, the formation of pigment, hair formation, root development, seed dormancy and death. Reproductive growth is influenced by photoperiod is the formation of flowers, fruits and seeds. Flowering in plants is influenced by three factors: photoperiod, phytochrome and the biological rhythms of plants. Knowledge of plant responses to photoperiod can be used (1) selection of the plant before it is introduced into a region need to be tailored to the requirements photoperiod area, (2) artificial irradiation is widely used in horticultural plants to control flowering season and to increase the yield of plants in greenhouses, and (3) artificial light can allow cross it flowerence different plants that season when the natural conditions

DESAIN SISTEM PENGERING KERUPUK KEMPLANG DENGAN UAP SUPER PANAS BERBAHAN BAKAR BIOMASA Endo Argo Kuncoro
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Penggunaan alat pengering seperti cabinet dryer berbahan bakar minyak (BBM) atau gas (BBG) untuk pengeringan kerupuk kemplang merupakan solusi dalam mengatasi masalah pengeringan yang terkendala cuaca. Umumnya sistem pengeringan ini menggunakan udara panas sebagai medium pengeringan. Namun, pada penelitian ini akan dikembangkan sistem pengeringan kerupuk kemplang dengan menggunakan uap super panas. Penggunaan uap super panas untuk proses pengeringan didasarkan pada sifat termodinamika uap tersebut yang lebih unggul daripada udara pada kondisi yang sama. Rancangan alat pengering dengan uap super panas akan menggunakan sekam sebagai bahan bakar untuk pemanasan boiler. Berdasarkan uji teknis, perhitungan, dan uraian pembahasan yang telah dilakukan terhadap alat pengering kemplang tipe rak menggunakan uap kering super panas maka diperoleh suhu dan kelembaban relatif ruang pengering didapat sebesar 78oC dan 35%. Laju pengeringan rata-rata sebesar 7,01%/jam, kadar air akhir kemplang rata-rata sebesar 7%, dan kebutuhan energi panas total rata-rata 31.419,86 kJ. Efisiensi pengeringan dan efisiensi pemanasan dengan bahan bakar sekam adalah sebesar 7,41% % dan 2,07%. Alat pengering kemplang tipe rak menggunakan sumber panas uap kering super panas dapat diaplikasikan karena memenuhi karakteristik pengeringan.

PENGOLAHAN DAN DAYA TAHAN LIMBAH PASAR SEBAGAI BAHAN PAKAN AYAM Nonok Supartini; Hariadi Darmawan
BUANA SAINS Vol 18, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

The aim of this research to examine feed nutrients of market waste processed as hen feed supplementation and to identify the best processed of market waste as hen feed supplementation. This research held at Field Laboratory of Agriculture Faculty Tribhuwana Tunggadewi University, Tlogomas, Malang for processed the market waste and at Feed Nutrition of Animal Husbandry Faculty Brawijaya University, Veteran Street, Malang. Materials used were vegetables and fish waste from the local market which classified in the waste group of green vegetables, tomatoes, sprouts and fish bone. Each of groups treated with under siege processed treatment, sun-dried processed treatment, boiled processed treatment and steamed process treatment. Each of group treatments used durability checked of feed supplementation by organoleptic inspection. This inspection is done for every 2 hours for 6 hours a day. This inspection done during 20 days. The result concluded that under siege processed treatment of market waste was the best process for durability feed supplementation. The boiled processed treatment was the worst processed for durability feed supplementation.

PEMANFAATAN PATI UBI JALAR SEBAGAI BAHAN BAKU PEMBUATAN PATI BERKATION DENGAN PROSES HIDROLISIS Nana Dyah Siswati; Siltje Rivana; Zuroida Novi A.
BUANA SAINS Vol 7, No 2 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

Cationic starch is as modified starch that is used in paper industry as glue, additive and surface sizing agent. Modification of starch will happen under gelatinization temperature. To avoid the gelatinization an alkaline salt of Na2SO4 is need. This experiment was done by using sweet potato starch reacted with nitrogen containing dimethyl ammonium chloride. Effects of adding Na2SO4 at concentrations of 0,5, 1, 1,5, 2, 2,5% of the total material weight and at 40; 50; 60; 70;80 oC heating temperature were measured for this study. To indicate the best quality of cationic starch DS (Substitution Degree) standard grade available in paper industry between 0,02 – 0,04.was used. The best result was reached on concentration of 1% Na2SO4 and 40 oC heating temperature, the yield was 91,71% and DS grade was 0.036 (meeting the DS standard grade)

PEMBERIAN DAGING AYAM DAN BAKING SODA SEBAGAI UPAYA PENINGKATAN KUALITAS KERUPUK AMPLANG Endang Rusdiana; Budi Santosa
BUANA SAINS Vol 6, No 1 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

The objectives of the study were to determine the best composition between meat chicken and baking soda to obtain quality of amplang chips. The study used Completely Randomized Design (CRD) factorial with two factors. The first factor was chicken meat giff consisting of two levels, i.e. 10 % and 20 %; the second factor was baking soda giff consisting three levels, i.e. 1 %, 2 % and 3 %. The observation was made using physical test consisting of blooming capacity and chemical test consisting of water content, protein content and dust content. The results of this study showed that some levels of baking soda giff obviously influenced blooming capacity and dust content, some levels of chicken meat giff obviously influenced protein content. In water content, the baking soda giff and chicken meat giff treatments showed the obvious different and there were interaction between the two treatments

KAJIAN BEBERAPA DEKOMPOSER TERHADAP KECEPATAN DEKOMPOSISI SAMPAH RUMAH TANGGA Amik Krismawati; Dini Hardini
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Bertumpuknya sampah di Tempat Pembuangan Sementara (TPS) mengakibatkan menurunnya sanitasi lingkungan dan estetika kota, sehingga menimbulkan gangguan bagi wargakota. Untuk mengurangi jumlah sampah dapat dilakukan dengan memanfaatkan kembali limbah organic sampah rumah tangga melalui proses daur ulang menjadi kompos. Strategi proses pengomposan yang saat ini banyak dikembangkan adalah dengan menambahkan aktivator/decomposer pengomposan. Tujuan penelitian untuk mengetahui kecepatan dekomposisi beberapa dekomposer pada sampah rumah tangga. Penelitian dilaksanakan di Balai Pengkajian Teknologi Pertanian (BPTP) Jawa Timur mulai bulan Pebruari sampai dengan April 2011. Penelitian terdiri dari 4 perlakuan dengan ulangan dua kali yakni perlakuan A = Sampah rumah tangga 50 kg + pupuk kandang 5 kg + dedak 5/6 kg + Molase 1/6 liter dan dekomposer BPTP 1 67 ml yang dilarutkan 1 liter air bersi;.B = Sampah rumah tangga 50 kg + pupuk kandang 5 kg + dedak 5/6 kg + Molase 1/6 liter dan dekomposer SuperDegra 67 ml yang dilarutkan 1 liter air bersih; C = Sampah rumah tangga 50 kg + pupuk kandang 5 kg + dedak 5/6 kg + Molase 1/6 liter dan dekomposer BPTP 2 67 ml yang dilarutkan 1 liter air bersih; dan D = Sampah rumah tangga 50 kg + pupuk kandang 5 kg + dedak 5/6 kg + Molase 1/6 liter dan dekomposer BPTP 3 67 ml yang dilarutkan 1 liter air bersih. Parameter pada penelitian ini adalah suhu, warna, aroma, kandungan C-organik (%), C/N rasio, dan reduksi (%) pada kompos sampah rumah tangga. Hasil penelitian menunjukkan bahwa proses pengomposan memerlukan waktu 4 – 5 minggu, kandungan C-organik tertinggi terdapat pada perlakuan A yakni 43,28%, kandungan C/N rasio tertinggi terdapat pada perlakuan A yakni 25,63. Berat bahan kompos pada akhir proses pengomposan mengalami penyusutan (reduksi) tertinggi pada perlakuan A1 sebanyak 88,4 %, sedang terendah pada perlakuan C2 sebanyak 80,8%. Berat akhir setelah menjadi kompos yang tertinggi pada perlakuan C2 yakni 9,3 kg sedang yang terendah pada perlakuan A1 yakni 5,8 kg

POLA KERJASAMA KELOMPOK USAHA BUDIDAYA JAMUR MERANG DI KELURAHAN POHJENTREK, KECAMATAN PURWOREJO KOTA PASURUAN F. Kasijadi; Rikawanto Eko Mulyawan; Ery Yusnita Arvianti
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

A study aimed to judge earnings and efficiency of mushroom cooperative farming was conducted at Puworejo District of Parusuan Regency. Primary data was collected from all 20 farmers involved in the farming. All data related to mushroom farming was collected using questionnaires combine with field visits. Results of this study revealed that based on production, revenue, earnings and costs, the cooperative mushroom farming was efficient to carry on. This was indicated by revenue: cost ratio of 1.59 at nucleus and 1,74 for plasma for one production cycle in the cooperative system

ANALISIS PROSES DAN FINANSIAL INDUSTRI KECIL MIE PANGSIT WAHYU AGUNG JAYA MALANG Wahyu Mushollaeni
BUANA SAINS Vol 8, No 1 (2008)
Publisher : Universitas Tribhuwana Tunggadewi

The aims of this research were to elucidate the process and financial aspect of making boiled noodles in small scale industry Wahyu Agung Jaya Malang. Data was collected through observation and interview. Materials used for making boiled noodles were flour, tapioca, water and NaCl. The processes were mixing, pressing, dividing, boiling, cutting, drying, cooling and packing. The factory has a standard to controlling the process to produce good quality of product. Sanitation was applied in facilities, machines, employess and other facilities. NPV, IRR and PBP values were 69.261.988,98.; 0,41 or 41%; and 3 years and 4 months. Production capacity were 360 kg noodles/day

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