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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 15 Documents
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Search results for , issue "Vol 23, No 3 (2023)" : 15 Documents clear
EVALUASI KINERJA ON FARM AGRIBUSINESS DALAM MENDUKUNG TERWUJUDNYA P4S BELIMBING ARTHA MANDIRI SEBAGAI AGROWISATA Anggarani, Susanti Dewi; Asnah, Asnah; Dyanasari, Dyanasari
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.6018

Abstract

This study aimed to know about the interrelationships between agribusiness subsystems, cost analysis, revenues, and profits in the development of starfruit in P4S Belimbing Artha Mandiri and to analyze the feasibility and sustainability of developing starfruit in P4S Belimbing Artha Mandiri. The analysis used is descriptive, cost analysis, sweet star fruit income, and financial feasibility analysis. The results showed that the agribusiness subsystems in P4S Belimbing Artha Mandiri were interrelated and supported one another and still have weaknesses in the processing and marketing subsystems. Over ten years, it has had an average revenue of Rp. 786,266,944, - with an average operational cost of Rp. 360,793,236, - so the average income received each year is Rp. 425,473,707, - There are four criteria for financial eligibility. The Net Present value (NPV) shows a value of Rp. 1,453,862,787.- IRR (Internal Rate of Return) shows a value of 41.72%, and PP (Payback Period) is at 1.26. The calculation of Net B/C in business starfruit cultivation is 3.87. The financial feasibility criteria show that the sweet star fruit cultivation business at P4S Belimbing Artha Mandiri is feasible and can continue.
SEGMENTASI PASAR TERHADAP PENINGKATAN PENJUALAN KEJU MOZZARELLA DI KOTA MALANG Nugroho, Anung Prasetyo; Suroto, Karunia Setyowati
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5665

Abstract

 This research aimed to determine whether the advertising division had a partial and synchronous impact on the expansion of deal execution at CV. Narendra Food Company. The type of research used is quantitative, namely a research approach testing speculation through numerical estimation of factors and analysis of information using measurable methods, as well as referring to theory testing. This inspection uses a purposive testing strategy. This examination totaled 105 respondents with the composition of customers who purchased mozzarella cheese. The result showed positive and noteworthy influence from the showcase division, especially the geographic showcase division, statistical showcase division, and psychographic market segmentation partially or independently on the expansion of transaction execution at CV. Narendra Food Company.  
PERSEPSI MASYARAKAT TERHADAP RENCANA PENGEMBANGAN EKOWISATA HUTAN BONGOK DI DESA JETAK KECAMATAN MONTONG KABUPATEN TUBAN Jereng, Indra; Asnah, Asnah; Rofiatin, Umi
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5644

Abstract

The study aimed to determine the publics perception of the ecotourism development plan in the Bongok protected forest and determine the factors that encourage and hinder the plan to develop Bongok forest ecotourism. This research uses a descriptive method approach. Data collection techniques using observation, interviews or questionnaires, and documentation. Community perceptions of the development of Bongok forest ecotourism according to the results of the recapitulation of perceptions of the community for the development of ecotourism researchers explained that public perceptions of plans to develop Bongok forest ecotourism with the following percentages such as public perception of the development of Bongok forest tourism objects with an average value of 85.12%, community perceptions related to the development of ecotourism facilities 89.82% and public perception regarding the development of the Bongok forest ecotourism function averaged 87.23%. Factors driving the development of bongok forest ecotourism are geographic factors, human Resources factors, sociocultural factors and institutional strengthening factors. The other factors that hinder the process of developing ecotourism are minimal funds and facility factor
STUDI KELAYAKAN USAHATANI BAMBU PETUNG DI HUTAN BONGOK DESA JETAK KECAMATAN MONTONG KABUPATEN TUBAN Kartini, Maria Talisia; Pudjiastuti, Agnes Quartina; Khoirunnisa, Ninin
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5653

Abstract

This research aimed to determine petung bamboo farming is feasible in the Bongok Forest for forest conservation and restoration. Data analysis used quantitatively, namely farming analysis, feasibility analysis, and sensitivity analysis using the feasibility criteria Gross Benefit Cost Ratio (Gross B/C), Net Benefit Cost Ratio (Net B/C), Net Present Value (NPV), Internal Rate Of Raterun (IRR), Payback Period (PP), and Break Event Point (BEP). The income from farming is Rp. 1,720,750,000 from petung bamboo production for ten years where petung bamboo starts production in the 5th year with a total production of 48,650 stems multiplied by the price of petung bamboo at the farmer's level starting from Rp. 20,000 to Rp. 40,000 is calculated from the 5th year of production until the 10th year with an annual price increase of Rp. 5,000. Income is Rp.1,461,000,311 total income minus total expenditure on petung bamboo farming. Gross B/C is 22.18879511 1. Analysis of investment feasibility criteria shows that petung bamboo farming in the Bongok Forest is feasible. The NPV value of obtaining a profit of Rp. 830,795,931, IRR value 44.51% ( 6%), Net B/C Value of 81,633,855 1, Production BEP of 48650, and BEP price of IDR 4365.420357 and Payback Period can returned for a period of 5,989.
PENGARUH POSISI PEMOTONGAN BAHAN STEK DAN PEMBERIAN EKSTRAK BAWANG MERAH TERHADAP PERTUMBUHAN STEK TANAMAN STEVIA (Stevia rebaudiana B.) Khaerunnisa, Mahdelia Alyaa; Karno, Karno; Kristanto, Budi Adi
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.6045

Abstract

This research aimed to determine the effect of cutting position and the concentration of onion extract as a natural hormone on stevia stem cutting propagation. This study used a Factorial Completely randomized design in which the first factor was Apical Cutting (P1), Middle cutting (P2), and Bassal Cutting (P3), and the second factor was control (R0), shallot extract concentration 25% (R1), shallot extract concentration 50%(R2), shallot extract concentration 75% (R3), shallot extract concentration 100% (R4) and Rootone F 25 ppm (R5). The position of cutting has significantly resulted in Times of bud growth, number of roots, number of leaves, and plant height. The concentration of shallot extract has significant results in times of bud growth, number of roots, length of root, number of leaves, plant height, weight of plant, and weight of dry plant. The best performance was apical cuttings and shallot extract concentration of 100%.
VOLALITAS HARGA DAGING SAPI DI JAWA TIMUR PADA BULAN RAMADHAN Priyambodo, Ayu Wulandari; Rinanti, Rosyida Fajri; Trianawati, Anis; Aviolita P. P, Aviva
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5463

Abstract

This study aimed to investigate how the price of beef in East Java is affected by Ramadan. This study used ARCH/GARCH model to determine the correlation. The impact of Ramadan on the price beef in East Java is then examined, along with the effect of price fluctuations and price volatility, using the GARCH model. The results showed that price volatility affects variations in beef prices. Then, the GARCH (1,1) model estimation findings demonstrate that the volatility from the prior period and yesterday's variation in East Java have impacted changes in beef prices.
PENGGUNAAN JERAMI BUNGA SEDAP MALAM TERFERMENTASI DALAM COMPLETE FEED TERHADAP PERFORMA DOMBA LOKAL Suryanto, Dedi; Marthotillah, Achmad Bagus A.; Ali, Usman
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5269

Abstract

This study aimed to assess the impact of fermented night-blooming jasmine straw (JBSMF) in complete feed on local sheep performance, including feed intake, weight gain, feed digestibility, and feed efficiency. Materials included male local sheep, rice bran, concentrate, pollard, corn stover, premix, and JBSMF. The research was conducted on KTHRI in Wagir Village, Sukun, Malang and used the randomized block design experiment featured four treatment, P0 = control feed, P1 = 10% dry JBSMF, P2 = 20% JBSMF, and P3 = 30% JBSMF in complete feed, each repeated three times. Observed variables encompassed sheep production performance: feed intake, weight gain, feed digestibility, and feed efficiency. Results indicated that JBSMF in complete feed had no significant impact on local sheep performance. The optimal treatment was 30% JBSMF inclusion. In conclusion, increasing fermented JBSMF in dry form in complete feed showed the potential to enhance local sheep performance and optimal use of 30 % of dry JBSMF .
PENGARUH PEMBERIAN BIOCHAR DAN PESTISIDA BERBAHAN CHITOSAN TERHADAP PERTUMBUHAN DAN HASIL TANAMAN BROKOLI (Brassica oleraceae var. Italica) Triana, Hesti; Alfian, Rizki; Damung, Yovita Mariana; Fikrinda, Wahyu
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5621

Abstract

 This research aimed to determine the effect of applying biochar and chitosan-based pesticides on the growth and production of broccoli plants. This research used a factorial randomized block design. The first factor, namely biochar, consists of 4 (four) levels; B0: control, B1: 160 g/polybag, B2: 320 g/polybag, and B3: 480 g/polybag. The second factor, namely chitosan, consists of 3 (three) levels; C0: control, C1: 1.5 ml/l water, and C2: 3 ml/l water. Data analysis used analysis of variance (ANOVA) and further testing using BNT at the 5% level. The results showed that there was no interaction between giving biochar and chitosan on broccoli growth and yield parameters, but separately giving biochar had a significant effect on plant height, number of leaves, leaf area, flower diameter, flower weight, and production yield, chitosan treatment had a significant effect on plant height, number of leaves, leaf area, flowering age, flower diameter, flower weight, wet and dry weight of stover, and production yield. The best biochar treatment was at a dose of 480 g/polybag (B3) with a production yield of 12.69 t/ha compared to the control 11.49 t/ha and the best chitosan treatment was at a dose of 3 ml/l water (C2) with a production yield of 12 .82 t/ha compared to the control, namely 11.09 t/ha. The application of 160 g biochar/polybag + 3 ml chitosan/l showed that it was able to suppress the development of black rot disease with a disease incidence percentage of 0-8% compared to the control of 8-50% and a wound diameter on flowers of 0.00 cm compared to controls of 1.87 cm.
PENGGUNAAN KOMBINASI KADAR PROTEIN PAKAN DAN THREONIN TERHADAP PENAMPILAN PRODUKSI DAN KECERNAAN PAKAN PADA AYAM KAMPUNG UNGGUL Santoso, Erik Priyo; Fitasari, Eka; Togola, Veronika; Leuhapu, Robertus Aba
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5671

Abstract

This research aimed to determine the effect of a combination of feed protein levels and threonine, namely feed formulations with crude protein (PK) levels of 19%, 18%, and 17% combined with the addition of the amino acid threonine 100%, 110%, and 120%. The research used a Completely Randomized Design Method repeated three times. The parameters measured in this study were production performance (feed consumption, body weight gain, FCR, feed efficiency) and digestibility (metabolic energy and N retention). The combination of feed PK and threonine content did not significantly affect all parameters (p0.05). Feed PK significantly affected feed consumption, FCR value, and N retention value. The results showed that the highest body weight gain was in 80-day-old chickens produced in the 18% PK treatment 1264.43 gr/head and decreased in the 17% CP treatment. The highest feed efficiency occurred in the PK 18% treatment at 34.99%. The 18% protein at all threonine levels gave an AMEn value with an average value of 3418.15 Kcal/kg and N Retention with a value of 89.12%. Feed treatment with a protein content of 18% combined with 100%, 110%, and 120% threonine treatment gave the best results in body weight gain and feed efficiency.
EKSTRAKSI MINYAK ATSIRI DAUN ROSELLA (Hibiscus Sabdaíiffa L ) METODE WATER STEAM DESTILATION Helilusiatiningsih, Nunuk; Irawati, Titik; Syahara, Muhammad Alwi
BUANA SAINS Vol 23, No 3 (2023)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v23i3.5647

Abstract

The rosella plant has antioxidant and coloring compounds that are useful for coloring and aromatic various drinks. The research aimed to study the extraction of essential oils from rosella leaves through phytochemical screening and sensory testing of the oil results. The research method used extraction of essential oil using water steam distillation, color, aroma analysis using the hedonic method, and antioxidant activity using the DPPH method. Results showed the amount of essential oils in leaves is 0.0087% in 1 kg of dry material. Rosella Leaf Oil 25% like the yellow color, 75% like it, 0% dislike it, 30% like the aroma of the leaf essential oil, 70% like it, and 0% dislike it. The antioxidant activity in rosella leaves with concentrations (ppm): of 5, 10, 25, 50, 100, and 200 ppm (22,5; 29,7;  34,9;  42,13;  44,5;  51, 4)%.  A comparison or control test using ascorbic acid with the same concentration as above showed a percentage of inhibition (37,53;44,16; 51,84; 61,19; 72,45; 88,22)%.  The IC 50 value of ascorbic acid (as a control) is 26.94 ppm and the IC 50 of Rosella leaf extract is 171.27 ppm, which is classified as having weak antioxidant activity in the leaves. The GC-MS results showed essential oil consists cis-3 Hexenyl Acetate (11.50%), 3-Cyclohexene-1-methanol (4.97%), 2-Propenoic acid (2.65%), Linalool 3,7-oxide (2.15%), Methyl 4-methylhexanoate (1,54%), Butanoic acid (0.54 %), 3-Methylpent-3-en-2-ol (0.25%), 1-Hexen-3-ol (0,24%).

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