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Karakterisasi Plastik Boidegradable dari Pati Onggok Singkong dan Nata De Coco Zainal Arifin; Raswen Efendi; Vonny Setiaries Johan
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tapioca solid waste from the processing of tapioca still contains starch, which can be used as a raw material for making biodegradable plastic. The purpose of this study was to obtain the best formulation in the manufacture of biodegradable plastics from cassava starch and nata de coco. This research was carried out experimentally using a completely randomized design (CRD). The treatments in this research were the ratio of tapioca solid waste and nata de coco, which are ON1(95:5), ON2(90:10), ON3(85:15) and ON4(80:20) in 10 g biodegradable plastic formulations. The results showed that the tapioca solid waste and nata de coco had a significantly affected on thickness, water resistance, water vapor transmission, tensile strength, elongation, and. biodegradation timebut  has no significant effect on thickness. The best treatment chosen was ON4 ratio of tapioca solid waste and nata de coco (80:20) having thickness of 0.15 mm, water resistance 80.56% s, water vapor transmission 9.14 (g/m2/hour), tensile strength of 4.16 MPa, elongation of 33.81%, and biodegradation for 6th days. Keywords : Biodegradable plastic,nata de coco, tapioca solid waste
MUTU MINYAK KELAPA DALAM PENGOLAHAN SECARA FERMENTASI (PENGARUH KONSENTRASI STARTER NIRA KELAPA DAN RAGI ROTI) RASWEN EFENDI; EVI SRIBUDIANI
Jurnal Ilmiah Pertanian Vol. 4 No. 1 (2007): Jurnal Ilmiah Pertanian
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/jip.v4i1.1335

Abstract

Abstrak :Penelitian ini bertujuan untuk mengetahui konsentrasi dan jenis starter yang terbaik dalampengolahan minyak kelapa secara fermentasi. Penelitian ini menggunakan Rancangan AcakLengkap non faktorial dengan enam perlakuan dan tiga kali ulangan. Hasil penelitian menunjukkanbahwa penggunaan starter ragi roti dengan dosis 50 ml/300 ml memenuhi standar mutu minyakkelapa dimana rendemen yang dihasilkan 68,36%, kadar air 0,01%, bilangan peroksida 0,56mg/g dan asam lemak bebas 0,16%. Warna minyak kelapa yang dihasilkan bening dan berbauharum.
PEMBUATAN BIODIESEL METIL ESTER DARI MINYAK JELANTAH DAN METANOL DENGAN KATALIS ABU GOSOK MITA SAPUTRI; FAJAR RESTUHADI; RASWEN EFENDI
Jurnal Sagu Vol 15, No 1 (2016)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (655.317 KB) | DOI: 10.31258/sagu.v15i1.5217

Abstract

Biodisel methyl ester research has been used waste cooking oil and methanol with ash replenishment as acatalyst.This research was doing to saw the effect of catalyst concentration on biodiesel from used cookingoil. The research used a Completely Randomized Design with five treatments is M1 (catalyst 2 g), M2 (catalyst4 g), M3 (catalyst 6 g), M4 (catalyst 8 g) and M5 (catalyst 10 g) withing three replications. The data wereanalyzed using Analysis of Variance (ANOVA) and continued with DNMRT at 5% level. The research resultshas showed that the addition of a catalyst concentration of ash significantly (P<0,05) affected on the acidnumber, total glycerol content, density, saponification number, viscosity, iodin number, flash point and levelmethlyl ester, but did not significantly influence (P>0,05) on the water content. The best treatment is M5 withacid number 0,71 mg KOH/g, total glycerol content of 0,01%, density 0,88 g/cm3, viscosity of 47,94 cSt, iodinnumber 66,83 gI2/100, water content of 0,06%, flash point 249,33°C, saponification number154,84 mg KOH/g and levels of methyl ester 99,5%.
SOYGHURT SHELF LIFE OF PROBIOTICS AS A FILLER CHOCOLATE PRALINE Raswen Efendi; Evy Rossi; Suherni Safitri Rangkuti
Jurnal Sagu Vol 12, No 1 (2013)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (52.28 KB) | DOI: 10.31258/sagu.v12i1.2064

Abstract

The purpose of the research was to determine the storage limits of soyghurtprobiotics as a filler chocolatepraline. The research was done by using Completely Randomized Design (CRD) with five treatments (0,1,2,3and 4) weeks and 3 replications. The data obtained were analyzed by ANOVAand continued with Tukeytest at5% level. Results showed that the storage time significantly affected the moisture content, total lactic acidbacteria and total lactic acid. Levels of proteinandfatwereanalyzedbeforestoragesoyghurtis equal to 4.40%and 2.65%. Results of this study showed that storage time soyghurt probiotic chocolate praline as filler effecton water content, total BAL, and total lactic acid. Storage time 4 weeks resulted soyghurt containingmoisture content (85.45%), total BAL (10.34 log cfu/ml), and total lactic acid (0.51%) is still suitable forconsumption.Key words: soyghurt, shelf life, chocolate praline, whey, lactic acid bacteria
PENGGUNAAN LILIN UNTUK MEMPERPANJANG UMUR SIMPAN BUAH NAGA MERAH (Hylocereus polyrhizus) Noviar Harun; Raswen Efendi; Saddam Husein Hasibuan
Jurnal Sagu Vol 11, No 2 (2012)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.63 KB) | DOI: 10.31258/sagu.v11i2.1427

Abstract

The aim of this study was to determine the effect of variaus concentration of wax emulsion onthe shelf life of red dragon fruit (Hylocereus polyrhizus). This study was done at the Laboratory ofAnalysis of Agricultural Products, Faculty of Agriculture, University of Riau. The design used in thestudy was completely randomized design (CRD) with 5 treatments and 4 replications. Treatments wereperformed during the study were L1: No wax emulsion; L2: Application of 2% wax emulsion; L3:Application of 4% wax emulsion; L4: Application of 6% wax emulsion; L5: Application of 8% waxemulsion. The data formed were statistically analyzed with analysis of variance. Parameter absorvedwere total dissolved solid, weight shrinkage, respiration rate and organoleptic tests including skinand flesh colors, flavor and aroma. Use of wax emulsion significantly affected the weight, moisturecontent, textue, flash and skin colors and teste, but did not significantly influence the dissolved totalsolid, respiration rate, and aroma of rad dragon fruit. The best treatment found when 6% of waxemulsion applied.Key words: dragon fruit, wax, combined
Pengaruh Dosis dan Lama Pengeringan dengan Karbit (Kalsium Karbida) dalam Proses Degreening Jeruk Bangkinang Raswen Efendi
Jurnal Sagu Vol 6, No 02 (2007)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.464 KB) | DOI: 10.31258/sagu.v6i02.1515

Abstract

The objective of the research was to determine the influence of dosage and storage ripening of Calcium Carbide in degreening process of Bangkinang citrus. The research was set up in Complete Randomized Design with four calcium carbide dosage (20, 25, 50, 75 g/kg) on three duration of storage ripening (3, 4, and 5 days). The result of this research concluded that the best treatment was the degreening process with 50 and 70 g/kg calcium carbide dosage and 4 to 5 days storage ripening. Physical and chemical analysis af citrus from this treatment resulted in 5,083-6,2500 Brik total soluble solid and 0,043-0,77% total acid, while organoleptic test showed average hedonic score of 5 and 4,8-5 (both were extremely like), for colour and flavor, respectively. Key words : Calcium carbide, degreening, citrus.
CONCENTRATION OF CINNAMON ON QUALITY OF CANDIED PINEAPPLE PITH (Ananas comosus L. Merr) DURING STORAGE Marwita Marwita; Raswen Efendi; Evy Rossi
Jurnal Sagu Vol 20, No 2 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.646 KB) | DOI: 10.31258/sagu.20.2.p.49-59

Abstract

The purpose of this research is to obtain the best concentration of cinnamon on the quality of candied pineapple pith (Ananas comosusL. Merr) during storage. This research used a Completely Randomized Design (CRD) with five   theatments and three replications to obtain 15 experimental units. The treatments in this study were K1 (6% cinnamon concentration), K2 (8% cinnamon concentration), K3 (10% cinnamon concentration), K4 (12% cinnamon concentration), and K5 (14% cinnamon concentration). The data obtained were  analyzed statistically using ANOVA and DNMRT test at 5% level. The results showed that the concentration of cinnamon in candied pineapple pith significantly affected the water content, total sugar content, pH, vitamin C, total plate count, overall descriptive and hedonic sensory assessment. The best treatment after 18 days of storage was K3 treatment (10% cinnamon concentration) with an average moisture content of 24.46%, total sugar content of 19.90%, acidity (pH) 4.36, vitamin C 1.08 mg/100 g, and total plate counts of 71,00 × 10^3 koloni/g. Overall sensory assessment favored by panelists with a description of yellowish brown color, very aromatic pineapple and cinnamon, taste of cinnamon and  slightly hard texture.  Keywords: Candied,Cinnamon, Pineapple 
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.
KOMBINASI PEMBERIAN NATRHIM BISUIFIT (NAHSO^ DAN PENGURANGAN SANTAN DALAM PEMBUATAN KELAPA PARUT KERING Raswen Efendi
Jurnal Sagu Vol 10, No 01 (2011)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2269.136 KB) | DOI: 10.31258/sagu.v10i01.628

Abstract

Desiccated Coconut is one of the utilization of coconut flesh which is feasible to be developed. This studyainud to obtain the concenlration of sodium bisulfite (NaHSO^) and to Increase the qualitv- of the resulting dry-desiccated coconut by squeezing the coconut nrilk. This research was carried out experimentally u.siiigRandomized Block Design (R^iK) of treatment coitibinatioa, with 9 combinations of treatments and 3replications. The treatments were PI (without extortion coconut milk and without NaHSO,), P2 (withoutextortion coconut milk and 0.1 % NaHSO,), P3 (w ithout extortion coconut milk and 0.2% NaHSO,), P4(extortion coconut milk20% and without NaHSO,), P5 (extortion coconut milk 20% and 0.1 % NaHSO,), P6(extortion coconut milk 20% and 0.2% NaHSO,), P7 (30% coconut milk extortion without NaHSO,). P8(extortioncoconut niilk30V» and 0.1 % NaHSO,),P9 (Coconut Extortion 30% and 0.2% NaHSO,).Theorganoleptic test used to find out the level of preference (hcdonic) for overall assessment of desiccatedcoconut products. Chemical analysis was carried out on the water content, fat content and free fatty acidlevels. The best treatment of desiccated coconut produced in this research is 0.2 */« NaHSO, and 20*/* coconutmilk extortion, with total yield (34.20%), water content (0.525%), fat content (47.34%), free fatly acid levels(2.09%), and overall assessment of desiccated coconut of 3.72 (like).
KARAKTERISTIK EDIBLE FILM PATI TAPIOKA DENGAN PENAMBAHAN MINYAK ATSIRI DAUN JERUK PURUT SEBAGAI ANTIBAKTERI AGUNG SURYADI PRATAMA PUTRA; AKHYAR ALI; RASWEN EFENDI
Jurnal Sagu Vol 16, No 1 (2017)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (102.972 KB) | DOI: 10.31258/sagu.v16i1.5397

Abstract

Edible film is a biodegradable packaging that composed from organic compound. Edible film can becontaminated by pathogen bacteria. Kaffir lime leaves essential oil has able to inhibit bacteria growth. Theaim of the study was to determine the best concentration of kaffir lime leaves essential oil as antibacteria ontapioca edible film. The experiment research used a completely randomized design, which consist of fivetreatments within three replications. The treatmens were concentration of essential oil i.e A1 (0% v/v), A2(0,5% v/v), A3 (1% v/v), A4 (1,5% v/v) and A5 (2% v/v). Data were obtained using analysis of variance andcontinued by Duncan New Multiple Range Test at level 5%. The result showed that the treatments significantlyaffected on water content, solubility, resistance of water, and water vapour transmission rate. Edible film withadditional of essential oil inhibit the growth of Staphylococcus aureus FNCC-19 and Escherichia coliFNCC-15. The best treatment was A5 (2% of essential oil) with thickness 0,156 mm, water content 22,87%,solubility 30,82%, resistance of water 161,29%, water vapour transmission rate 0,291 g/m2/h, diameterinhibition 20.16 mm of Staphylococcus aureus FNCC-19, and 30.45 mm of Escherichia coli FNCC-15.
Co-Authors ', Rahmayuni ', Rahmayuni ' ', Suparno ' Adi Darman Damanik AGUNG SURYADI PRATAMA PUTRA Ahmad &#039; Ibrahim Ahmad Dawardi Harahap Ahmad Ibrahim Ahmad Reza Akhyar Ali Alamin Hidayat Ana &#039; Yudiandani Andesmar Andesmar Andry Kurniawan, Mhd Angga Pramana Anggita Yuni Ashar, Muhammad Asri Bin Ayu Diana Bayu Nugroho Chairunnisa Saragih Denty Andriani Desi Septia Putri Devinta Puspita Sari Dewi Fortuna Ayu Dewi Pratiwi Dewi, Yossie Kharisma Diyah Suriani Dyah Ayu Ariani Edi Setiawan Eko Herianto Eko Raharjo Eko Sutrisno, Eko Elsa Novitasari Erpiani Siregar Evi Sribudiani Faizah &#039; Hamzah Faizah Hamzah Faizah Hamzah Faizah Hamzah Fajar Restuhadi Febria Martina Sari Fikri &#039; Hamidi FIRMANSYAH, YUKI Fitri &#039; Afrianti Fitria Ulfah Apriani, Fitria Ulfah Fitriani Manurung Fortuna Ayu, Dewi Gunawan Ardiansyah Hamdani, Reza Rizky Hamzah, Faizah ' Hamzah, Farida Hanum Imam S. Dalimunthe, Imam S. Imelda Yunita Ishak Alhafis Jaisman Putra Jamiatul Khairiyah Januari Manurung Juangga Joseph A. Marpaung Jumatri Yusri Jumiati Jumiati kartika, Nilda Lasma Simanjuntak Lutfi Habibah Marpaung, Juangga Joseph A. Marwita Marwita Mazhar Perdana, Mazhar MITA SAPUTRI Murdiono Abraham Sagala, Murdiono Abraham Nadia Novianti Tamba Nadya Nofaren Netti Herawati Netti Herawati Noviar &#039; Harun Noviar Harun Noviar Harun Noviar Harun2 Novita Yanti Nuraisah &#039; Nurmadhona Nurmadhona Nurul Hadi PRATAMA PUTRA, AGUNG SURYADI Putra, Anugerah Dwi Rafi Leo Leo Rosi Rahmadini Payla Juarsa Rahmayuni &#039; Rahmayuni Rahmayuni Rahmayuni Rahmayuni, Rahmayuni Rapidos, Rotua Rendi Dwi Cahyo Resty Rahayu Rianto Rianto Ricki Mustapa Rico Andyka Harahap Rika Andeska Robby Rahadian Romdatul Sholeha Rossi, Evy RSH, Ahmad Ibrahim Rudianto &#039; Ryan Nathanael S, Ryan Nathanael Saddam Husein Hasibuan SAPUTRI, MITA Sari, Manja SARI, SELVI MUSTIKA SELVI MUSTIKA SARI Serliana, Afri Shanti Fitriani Sinaga, Dian Felicia Sise Heralita Situmorang, Budi Lambok Suherni Safitri Rangkuti Suwito &#039; Syahrum Syahrum Syaputri, Citra Dwi Tanjung, Riski ' Teddy Yohannes Tarigan, Teddy Yohannes USMAN PATO Vonny Setiaries Vonny Setiaries Johan Yasa Rudin Yelmira Zalfiatri Yosua Sihotang YUKI FIRMANSYAH Yusmarini Yusmarini Zainal Arifin Zalfiatr, Yelmirai Zulhamdi Sumitro