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INDONESIA
BUANA SAINS
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.
Arjuna Subject : -
Articles 500 Documents
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KEPUTUSAN PEMBELIAN DAGING AYAM BROILER DAN PRODUK OLAHAN DAGING AYAM BROILER DI PASAR BESAR KOTA WISATA BATU Suroto, Karunia Setyowati; Murti, Ariani Trisna; Setiaji, Jatmiko
BUANA SAINS Vol 23, No 2 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i2.4997

Abstract

Broiler chicken meat consumption continues to increase per capita/year consumption of broiler chicken meat by the Indonesian people in 2016 was 5.68 kg per capita/year, an increase of 573 grams (11.2%) in 2017. The decision to buy chicken meat can be influenced by several factors such as product, price, place, promotion, and service. This study aims to determine the factors that influence consumers in buying fresh or processed chicken meat in the big market of Batu City. The type of this research is quantitative research. The sampling technique used purposive sampling with a total sample of 110 respondents. Data collection techniques through the dissemination of questionnaires, interviews, and documentation. The data analysis techniques consist of validity tests, reliability tests, classical assumption tests, and multiple linear regression analysis tests. The results showed that the factors that influence consumers' purchasing decisions in buying fresh chicken meat products and processed products in the big market of Batu Tourism City are product, price, and service factors. Then the factor that has a dominant influence on consumers' purchasing decisions on fresh chicken meat products and processed products in the big market of Batu Tourism City is the product factor.
ANALISIS POTENSI LANSKAP CANDI PENINGGALAN KERAJAAN SINGOSARI DI KABUPATEN MALANG SEBAGAI OBJEK WISATA SEJARAH Debora Budiyono; Hendra Kurniawan; Astri Sumiati; Muh. Candra Kusumah
BUANA SAINS Vol 23, No 1 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i1.5027

Abstract

Malang Regency is an area that has many historical relics. One of the relics whose existence is preserved and can be visited is the temple landscape of the heritage of the Singosari kingdom which has the character and identity of the characteristics of the heritage of the Singosari kingdom. The Singosari Kingdom has several temples including Singosari Temple, Kidal Temple, Jago Temple, and Sumberawan Temple which are Hindu Buddhist temples based on the function, shape, and reliefs that exist in these temples. The purpose of this study is to analyze the potential of the temple landscape from the Singosari kingdom in the hope that it can be developed as a historical tourist attraction in Malang Regency, there are actions to preserve the temple landscape, and improve the economy of the local community around the temple. The research method used is descriptive quantitative. Based on the results of the analysis of existing path aspects, historical aspects, objects and attractions aspects, and visual aspects of the landscape in the landscape of the Singosari Temple, Kidal Temple, Jago Temple, and Sumberawan Temple, it shows that the four temples have the potential to be developed as historical tourism relics of the Singosari Kingdom in Malang Regency.
KETAHANAN BEBERAPA VARIETAS KACANG TANAH (Arachis hypogeae L.) PADA KELENGASAN TANAH Sutoyo, Sutoyo; Agastya, I Made Indra; Astutik, Astutik
BUANA SAINS Vol 23, No 2 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i2.4998

Abstract

In the cultivation of peanuts in Indonesia, especially in dry land with various limited plant growth factors, the main obstacle to planting in dry land is the uncertain level of water availability. One of the efforts to overcome the problem of water availability on dry land is to plant drought-resistant peanut varieties including local superior varieties and national superior varieties that are tolerant of water shortage conditions and have high production potential. The purpose of this study was to study the resistance of several peanut varieties to soil moisture or water availability for plants.This study used a factorial randomized block design. The first factor is plant variety, consisting of V1 = hypoma-1, V2 = hypoma-3, and V3 = local, the second factor is soil moisture, consisting of K1 = 25% field capacity, K2 = 50% lang capacity, K3 = 75% field capacity and K4= Normal (100% field capacity). The results showed that the interaction between plant variety and field capacity had no significant effect on all of the observed parameters. Plant variety had a significant effect on plant height at the beginning of growth, while soil moisture had a significant effect on leaf number at the end of growth, number of pods, pod weight, seed weight per plant, 100 seed weight, and plant productivity. Soil moisture at 50% and 75% resulted in plant productivity not significantly different.
ANALISIS KELAYAKAN USAHATANI PENGGEMUKAN DOMBA SISTEM KANDANG PANGGUNG DI DESA SIDOMULYO KECAMATAN SILO, KABUPATEN JEMBER Ridho, Atok Ainur; Prawitasari, Saptya
BUANA SAINS Vol 23, No 2 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i2.5068

Abstract

The aim of this research was to measure profit, cost efficiency, and profitability of fattening and rearing sheep farming using the stilt system in Sidomulyo Village, Silo District, Jember Regency. This research uses descriptive-analytic and survey methods. The research area is Sidomulyo Village, Silo District. The research object was sheep breeders with a stilt cage system with a total sample of 32 people. The data analysis method used is profit analysis, cost efficiency, and profitability. The results showed that the profit of fattening and rearing sheep farming using the stilt system in Sidomulyo Village, Silo District, Jember Regency was IDR 7,200,200 per 10 heads or an average of IDR 240,000 per month. The efficiency of farming costs for fattening and rearing sheep using the stilt pen system in Sidomulyo Village, Silo District, Jember Regency indicated by an R/C ratio of 1.97. This business is classified as efficient because it is higher than the assumed bank interest rate of 12% /year. The profitability of farming for fattening and rearing sheep using the stilt cage system in Sidomulyo Village, Silo District, Jember Regency was 41.56%. Based on this value, the business of fattening sheep was more profitable than saving money in a bank with an assumed bank interest rate of 12% /year.
UJI AKTIVITAS ENZIM LIPASE PADA FRAKSI SKIM SANTAN TERHIDROLISIS moh su'i; Enny Sumaryati; Frida Dwi Anggraeni; Aghfariza Indriyani
BUANA SAINS Vol 23, No 1 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i1.4311

Abstract

Fresh coconut milk (not hydrolyzed) contains lipase enzymes. If coconut milk is hydrolyzed using lipase enzymes, it will produce free fatty acids, lauric acid, and monoglycerides (monolaurin), which have anti-bacterial and anti-viral activities. Besides that, hydrolyzed coconut milk can produce diglycerides which function as emulsifiers. During the hydrolysis process, it's a possibility of damage to the lipase enzyme due to the activity of the protease enzyme in coconut milk. The aim of this study is to examine the activity of the lipase enzyme in coconut milk which is hydrolyzed. The research used two factors, namely the first factor was the hydrolysis time (0, 24, and 48 hours) and the second factor was the incubation temperature (40 C and 55 C) which were arranged factorially. The study was repeated three times and used a randomized block design (RBD). The hydrolyzed fraction in the form of skim was tested for lipase enzyme activity, free fatty acid content, and yield. The results showed that coconut milk which was hydrolyzed for 2 days at 40 oC and 55 oC still contained the lipase enzyme with an activity of 3.49 to 9.40 units/ml. Large fatty acid levels ranged from 0.32 m mol/ml to 0.72 m mol/ml..
PERMINTAAN KUBIS PADA SEGMEN KONSUMEN MAHASISWA UNIVERSITAS TRIBHUWANA TUNGGADEWI DI PASAR LANDUNGSARI KABUPATEN MALANG Soni, Apolonius; Asnah, Asnah; Rofiatin, Umi
BUANA SAINS Vol 23, No 2 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i2.5003

Abstract

Demand is the number of goods requested at various price levels in a certain period so the price variable is a variable that influences demand. This study aims to analyze the demand for cabbage by Tribhuwana Tunggadewi University students, Malang City, at Landungsari Market, Malang Regency. Location determination was carried out purposively, with a total sample of 100 people determined by simple random sampling. The data analysis method uses demand function analysis with SPSS version 22 software. The results show that the data is normally distributed, and there are no deviations from the classical assumptions, both multicollinearity, and heteroscedasticity, so the selected model can be used properly and is not biased with Adjusted R Square 0.849. Selected independent variables have a significant effect simultaneously on the dependent variable. While partially the demand for cabbage in this study was significantly influenced by the price of the cabbage itself, the price of chicory, the price of mustard greens, and consumer tastes
ANALISIS KARAKTERISTIK HIDROLOGI TERHADAP POTENSI SUMBER DAYA AIR BERDASARKAN ANALISA BMKG RCP 4.5 DI DAS SEJAHTERA, SULAWESI TENGAH Suhudi Suhudi; Kiki Frida Sulistiyani; Ratnasari Rambu Dulu Mosa
BUANA SAINS Vol 23, No 1 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i1.4987

Abstract

The Sejahtera River Basin is located in Sejahtera Village, Palolo District, Sigi Regency, Central Sulawesi with an area of 61,028 Ha. The watershed is one of the water resources used for rice field irrigation for the people in the area. The aimed of this study to determine the hydrological characteristics and how much reliable discharge is available in the Sejahtera Watershed for existing conditions and due to climate change. In 2003–2020 an analysis of hydrological characteristics was carried out and there was an increase in the reliable discharge of 20% or 24 l/sec caused by climate change in the Sejahtera Watershed where the rains became lighter with an increase in presentation capacity ranging from 0–10 and 11-20% with moderately increasing temperatures ranging from 0.65-0.70 and 0.71 – 0.75oC. The data used in this research is secondary data. The condition of the Prosperous Watershed is still quite good, so it needs to be maintained so that there are no changes in land use.
PERTUMBUHAN BIBIT KRATOM MERAH (Mitragyna speciosa Korth.) DENGAN PEMBERIAN PUPUK ORGANIK CAIR KOTORAN AYAM POTONG Antoni, Antoni; Zakiah, Zulfa; Mukarlina, Mukarlina
BUANA SAINS Vol 23, No 2 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i2.4453

Abstract

The aim of this research was to determine the effect of giving chicken manure liquid organic fertilizer (LOF) on the vegetative growth of kratom plants and to find out the best concentration of chicken manure LOF that can increase plant growth kratom. This study used a completely randomized design which consisted of 7 treatment levels of chicken manure concentration of LOF, namely: control(A1), 50ml/L(A2), 100ml/L(A3), 150ml/L(A4), 200ml/L(A5), 250ml/L(A6), 300ml/L (A7). The results showed that the application of LOF chicken manure had a significant effect on the number of leaves, root dry weight, and shoot dry weight, but had no significant effect on plant height, leaf area, weight root wetness, shoot wet weight and chlorophyll content. The LOF treatment of chicken manure concentration of 150ml/L was the treatment that gave the best results on kratom plant growth for the average number of leaves (16.0 strands), root dry weight (3.94 grams), and shoot dry weight (5.48 grams).
PENGARUH PEMBERIAN VAM (Vesicular Arbuscular Mycorrhiza) DAN CHITOSAN TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KENCUR (Kaempferia galanga L.) Lodan, Stefanus; Agastya, I Made Indra; Fikrinda, Wahyu
BUANA SAINS Vol 23, No 2 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i2.4991

Abstract

The aim of this study was to determine the effect of giving VAM (mycorrhizal arbuscular vesicular) and chitosan on the growth and yield of kencur plants (Kaempferia galanga L.). The research design used factorial randomized block design (RBD) with two treatment factors. The first factor included VAM dose consisting of (V0: 0 g/plant, V1: 10 g/plant, V2: 20 g/plant, V3: 30 g/plant) and the second factor was the dose of chitosan consisting of (C0: control, C1: immersion dose of 25 ml/L, C2: immersion dose of 25 ml/L + follow-up spraying, C3: immersion dose of 50 ml/L, C4: immersion dose of 50 ml/L + follow-up spraying). The results showed the treatment of VAM (mycorrhizal arbuscular vesicular) and chitosan gave an interaction for all observation parameters however the disease incidence component (%) had no significant effect. The best results found in the combination treatment dose of VAM 30 g/tan and Chitosan soaking dose of 50 ml/L (C3V3) with the highest average value on the number of leaves, namely 30.3 leaves, the number of tillers, namely 32.7 tillers, leaf area at the age of 5 BST that is 521.4 cm2and increased to 666.0 cm2 at the age of 6 BST, the fresh weight of the stover was 239.5 g and the dry weight of the stover was 38.6 g, the fresh weight of the rhizomes reached 85.8 g and the dry weight of the rhizomes was 34.6 g, and the production yielded a value of 10,292 tons ha1. The application of mycorrhiza on kencur plants is able to suppress pathogen infection with an average disease incidence ranging from 0-0.6%.
PENGEMBANGAN USAHA AGRIBISNIS TERNAK DOMBA DI PETERNAKAN DOMBA BERKAH FARM, JUNREJO, KOTA BATU, JAWA TIMUR Santoso, Erik Priyo; Rinanti, Rosyida Fajri; Fajariah, Nuraidya; Utomo, Budi; Wawu, Marinus Umbu Kalendi
BUANA SAINS Vol 23, No 2 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i2.5004

Abstract

The purpose of this research is to determine the right marketing strategy to improve the Berkah Farm business. This research was carried out using a survey method which aims to find out which strategy is considered appropriate for developing a sheep farming business. This research was conducted at Berkah Farm, Junrejo, Batu City, East Java. Data was obtained through interviews with the management and employees of Berkah Farm. The data obtained were analyzed using SWOT analysis. Based on the research results, four alternative strategies were offered to develop the business, namely 1) maintaining production quality, 2) conducting disease prevention management training and 3) information technology, 4) maintaining relationships with buyers and marketing agencies 

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