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Sagu
Published by Universitas Riau
ISSN : 14424424     EISSN : 27164365     DOI : http://dx.doi.org/10.31258/sagu
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Environmental Science Industrial & Manufacturing Engineering
(SAGU) Agricultural Science and Technology Journal merupakan jurnal ilmiah dalam bidang ilmu dan teknologi pertanian yang diterbitkan oleh Fakultas Pertanian Universitas Riau, Pekanbaru. Jurnal ini diterbitkan dua kali dalam satu tahun yaitu pada bulan Maret dan September
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol 15, No 2 (2016)" : 5 Documents clear
PEMANFAATAN PATI SAGU DAN TEPUNG IKAN PATIN DALAM PEMBUATAN BISKUIT SESMITA SARI; VONNY SETIARIES JOHAN; AKHYAR ALI
Jurnal Sagu Vol 15, No 2 (2016)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (51.96 KB) | DOI: 10.31258/sagu.v15i2.5222

Abstract

The objectives of this research was to obtain the best ratio of sago starch and catfish flour in making biscuitand meet the quality standard of biscuits (SNI 01-2973-1992). This research used a completely randomizeddesign (CRD) with 5 treatments and 4 replications. The treatments in this research were ratio of sago starchand catfish flour; SP1 (80 : 20), SP2 (70 : 30), SP3 (60 : 40), SP4 (50 : 50) and SP5 (40 : 60). The data obtainedwas analyzed statistically using analysis of variance and further tested with DNMRT at the level of 5%. Theresult showed the different combination of sago starch and catfish flour gave significant effect on the moisturecontent, ash content, protein content, fat content, colour, aroma, texture and taste of biscuit using descriptivetest. Based on the overall assessment, the panelists lightly like biscuit of all treatments. The best treatment ofthis research was biscuit with ratio sago starch 40 and catfish flour 60, which moisture content 3.55%, ashcontent 1.36%, protein content 27.33%, fat content 8.88% and met quality standard of biscuit (SNI 01-2973-1992). The biscuit have characteristics cream in colour, the aroma was fishy, little brittle and tasted ofcatfish.
RANCANG BANGUN ROTARY DRUM BIOREACTOR UNTUK PRODUKSI MICROBIAL CELLULOSE HARUN SIANTURI; FAJAR RESTUHADI; EVY ROSSI
Jurnal Sagu Vol 15, No 2 (2016)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (245.438 KB) | DOI: 10.31258/sagu.v15i2.5223

Abstract

Microbial cellulose is the result of bacterial metabolism of Acetobacter xylinum in a liquid medium used. Togrow and produce optimal microbial cellulose, Acetobacter xylinum bacteria requires oxygen for metabolismof glucose. Several studies conducted to obtain optimal results as a static method, RDR, bioreactor dye andspin reactor still has weakness in the tools design. To overcome this weakness a new tool called Rotary DrumBioreactor (RDB) has been created. The design of Rotary Drum Bioreactor particularly aimed to overcomethe weaknesses of the previous studies and to determine the best treatment using RDB in better producing ofmicrobial cellulose. The study started on the selection tools and materials that will be used in designing theRDB tools, then proceed to design the tools to be able to work with four tools simultaneously that havedifferent speeds in each fermentor including 2, 4,6 and 8 rpm, as the treatment with three replications anduntreated comparison is static fermentation. The third phase was testing tools in producing microbialcellulose and then the data were analyzed statistically using analysis of variance followed by further test ofDuncan’s New Multiple Range Test (DNMRT) at 5% level. The analysis showed that the speed of 2 rpm for 6days of fermentation gave the best results including 95.02% moisture content, wet weight of 0.62 gr/ cm2 andyield 9.92%.
OPTIMASI PRODUKSI MICROBIAL-CELLULOSE DALAM BIOREAKTOR DRUM BERPUTAR (Rotary Drum Bioreactor) PARLUHUTAN PARLUHUTAN; FAJAR RESTUHADI; NOVIAR HARUN
Jurnal Sagu Vol 15, No 2 (2016)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (110.522 KB) | DOI: 10.31258/sagu.v15i2.5219

Abstract

The purpose of this study is to design an innovative bioreactors drum that potentially obtain the maximum ofmicrobial cellulose and to determine the drum rotation on contact time of Acetobacter xylinum with nutrientsand air by slowly rotation. The tools designed on 5,10, 15, 20, and 25 rpm to obtain the best optimization ofmicrobial cellulose by comparing with a static culture. The best result of descriptive analysis andexperimentation ware at a speed of 5 rpm with wet weight of 981 gr, dry weight 68,86 gr, the thickness 5,31mm, 44,42% of yield, 92,89% of water content, total of sugars before fermented was 13.66% and after fermentedfor 5 days is 6,69%, with the percentage of reduction of 6,67% sugar synthesized by Acetobacterxylinum cell.
PEMANFAATAN KITOSAN UNTUK MEMPERPANJANG UMUR SIMPAN BUAH PEPAYA VARIETAS CALIFORNIA YUKI FIRMANSYAH; RASWEN EFENDI; RAHMAYUNI RAHMAYUNI
Jurnal Sagu Vol 15, No 2 (2016)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (64.248 KB) | DOI: 10.31258/sagu.v15i2.5220

Abstract

The aims of this study is to study the effect of chitosan coating on papaya during storage and to obtain achitosan concentration that appropriate to extend the self life of papaya varieties california. The design ofthis study was a Block Randomized Design (BRD) with five treatments and four groups in order to obtaintwenty experiment units. The treatments in this study were the concentration of chitosan solution, includingK0: (control), K1: 0.5%, K2: 0.75%, K3: 1% and K4: 1.25%. Observations were made on days 0; 5; 10 and 15on weight loss, texture, total soluble solids, vitamin C and total plate count. The observation of respirationrate was performed on days 0 and 5. The data obtained were statistically analyzed using Analysis of Variance(ANOVA). If the F count is greater than or equal to F table then continued with Duncan’s New Multiple RangeTest (DNMRT) at 5% level. The utilization of chitosan coating significantly affect weight loss, respirationrate, texture, total dissolved solids, vitamin C and total plate count. The best treatment was based on theparameters that have been tested was papaya with chitosan concentration of 1.25% (K4). The results showedpapaya varieties california stored up to 15 days experienced a weight loss of 7.55%, texture 10.20 kgf/cm2,total dissolved solids 19.63p brix, vitamin C 15.58 mg and total plate count not detected. While the respirationrate of K4 treatment on day 5 was12.07 mg CO2/kg/hour.
UJI BEBERAPA DOSIS TEPUNG BIJI LADA HITAM (Piper nigrum L.) UNTUK MENGENDALIKAN HAMA Callosobruchus chinensis L. PADA BIJI KACANG HIJAU DI PENYIMPANAN ROSMANTO ROSMANTO; AGUS SUTIKNO; DESITA SALBIAH
Jurnal Sagu Vol 15, No 2 (2016)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (86.979 KB) | DOI: 10.31258/sagu.v15i2.5221

Abstract

Callosobruchus chinensis L is pest that attack mung beans in storage. The pest control of C. chinensis L. isusually performed using synthetic insecticides, however unwise usage can cause negative impacts to humansand the agricultural environment, so that the alternative insecticides that are safer and environmentalfriendly was needed, like a pesticide plant such as grains of black pepper (Piper nigrum L.). The research wasconducted at the Laboratory of Plant Pests, Faculty of Agriculture, University of Riau from December toFebruary 2016. The aim of this study was to get a dose of black pepper seed flour (Piper nigrum L.) which waseffective in controlling pests of Callosobruchus chinensis L. on mung beans in storage. The treatments weredoses of black pepper flour (Piper nigrum L.) in 50 g mung beans: 0 g, 0.5 g, 1.0 g, 1.5 g and 2.0 g. Theexperiment was using a completely randomized design (CRD) with 5 treatments and 4 replications. Theresults showed that the black pepper (Piper nigrum L.) flour in controlling Callosobruchus chinensis L. cancause total mortality of 85,0% at a dose of 1.5 g / 50 g mung beans.

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