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Optimization of Process Variables on Ethanol Production from Sorghum Grain Amin, M. Nur Ghoyatul; Hidayati, Darimiyya; Indarto, Cahyo
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

This research was aimed for obtaining high level of yield in ethanol production from sorghum grain (Sorghum bicolor L.). Response surface methodology (RSM) is selected to optimize the process variables in ethanol production by employing Box Behnken design. The factors consist of Ammonium sulfate concentrations, shaking rates, and fermentation times, which are designed at 0%, 0.2%, 0.4%, 0 rpm, 50 rpm 100 rpm, 56 hours, 64 hours, 72 hours respectively. Second order polynomial model was developed by Design expert 07 to estimate the ethanol yield by different level for each factor and the regression square was 90.09%. Optimal solution in this work was determined by contour plot, with the highest yield was 39.55%(v/w) by combination of ammonium sulfate concentration, shaking rate, fermentation time are 0%, 31.69 rpm, 72 hours respectively.Keywords: box behnken, Fermentation, yield
PENGARUH PENGGUNAAN CABAI RAWIT (CAPSICUM FRUTESCENS LINN) DAN LARUTAN KAPUR TERHADAP KUALITAS NIRA SIWALAN Hasanuddin, Ahmad; Rahman, Askur; Hidayati, Darimiyya
Rekayasa Vol 7, No 1: April 2014
Publisher : LPPM Universitas Trunojoyo Madura

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Abstract

Nira merupakan bahan baku utama pembuatan gula merah. Nira siwalan mudah terfermentasi akibat aktifitas mikroba. Kerusakan nira harus dicegah dengan penambahan pengawet. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan cabai rawit dan larutan kapur terhadap kualitas nira siwalan dengan menggunakan metode Rancangan Acak Lengkap Faktorial (RALF) yang terdiri dari 2 faktor yaitu cabai rawit segar dengan konsentrasi 3% (C1), 5% (C2) dan 7% (C3) dan penambahan larutan kapur 0,5 ml dengan konsentrasi 1% (K1), 2% (K2) dan 3% (K3) dan dilakukan pengulangan sebanyak 3 kali. Parameter penelitian yaitu pH, total padatan terlarut (TPT), total asam tertitrasi (TAT), turbiditas, aroma, kejernihan dan rasa. Hasil penelitian menunjukkan bahwa penggunaan cabai rawit segar berpengaruh terhadap pH, TPT, TAT, turbiditas, kejernihan dan rasa nira siwalan, namun tidak berpengaruh terhadap aroma nira siwalan. Penggunaan larutan kapur berpengaruh terhadap pH, TAT, turbiditas dan kejernihan nira siwalan, namun tidak berpengaruh terhadap nilai TPT, aroma dan rasa nira siwalan. Sedangkan  interaksi keduanya berpengaruh terhadap pH, TPT, TAT, turbiditas dan rasa nira siwalan, namun tidak berpengaruh terhadap aroma dan kejernihan nira siwalan. Palm sap is the main raw material of brown sugar. Fermented palm sap is due to microbial activity. Damage sap should be prevented by the addition of preservatives. This study aims to determine the effect of the use of cayenne pepper and a lime solution to quality sap of fan palm using completely randomized design factorial (Ralf) consisting of two factors: chili fresh with a concentration of 3% (C1), 5% (C2) and 7 % (C3), and the addition of lime solution of 0.5 ml with a concentration of 1% (K1), 2% (K2) and 3% (K3) and be repeated 3 times. Research parameter is pH, solids total that is dissolved (TPT), acid total that tritated (TAT), turbidity, aroma, clarity and taste. The results showed that the use of fresh red pepper effect on pH, TPT, TAT, turbidity, clarity and a sense of palm sap, but it does not affect the aroma of palm sap. The use of lime solution affect the pH, TAT, turbidity and clarity of palm sap, but it does not affect the value of TPT, aroma and flavor of palm sap. While their interaction effect on pH, TPT, TAT, turbidity and palm sap flavor, but does not affect the aroma and clarity of palm sap.
POLA PERTUMBUHAN RAGI TAPE PADA FERMENTASI KULIT SINGKONG hidayati, Darimiyya; Ba’ido, Darratul; Hastuti, Sri
AGROINTEK Vol 7, No 1 (2013)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v7i1.2044

Abstract

Cassava peel is plenty agriculture residu because many food product use cassava asraw material, especially in Madura. The use of cassava peel is limited because of high cynideacid, low glucose, and low protein. The result of the first experiment shows that ragi tape is thethe most suitable ragi for fermentation cassava peel. The objective of this research is todetermine optimum fermentation time for cassave peel using ragi tape. The experiment havedone in laboratorium TIP UTM. Cassava peel fermented using 5% ragi tape until 9 days.Parameter of this experiment ar HCN content, protein, pH, and growth of ragi. The resultshows that optimum fermentation time is 6 days
KARAKTERISTIK SENSORIS DAN KIMIA PADA ABON NANGKA MUDA (Artocarpus heterophyllus LMK) DENGAN PENAMBAHAN TEMPE Nur Jannah, Ulfa Qurrota A’yuni; Hidayati, Darimiyya; Jakfar, Abdul Aziz
AGROINTEK Vol 10, No 1 (2016)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v10i1.2025

Abstract

Unripe jackfruit is one vegetables that  is usually processed into Indonesian dishs. Beside unripe jackfruit processed into vegetables can also be developed and processed into a dry product called beef floss. Unripe jackfruit has a very low protein content, so it needs other raw material to improve protein content of the floss we added tempeh to the floss = gembus tempeh or soybean tempeh, as much as 15%, 25%, 35% and 0% as control. This study uses a Completely Randomized Design (CRD) with 2 factors. The first factor is proportion of unripe jackfruit and tempeh, and the second factor is type of tempeh. Parameter of this research are organoleptic evaluation, the color, moisture content and protein content. The result of organoleptic evaluation is the proportion 25% soybean tempeh prefered for aroma, taste, color, texture. The highest L (Lightness) was resulted from 35% soybean tempeh. The highest moisture content was shown by floss with 15% soybean tempeh. Protein content increased from 4,3775% to 39,3975% by addition of soybean tempeh while protein increased from 4,3775%  to 14,8835% in beef floss added with gembus  tempeh.
PENGARUH PENGGUNAAN DAUN JAMBU BIJI DAN LARUTAN KAPUR TERHADAP KUALITAS NIRA SIWALAN Hasanah, Kurrotul; Rahman, Askur; Hidayati, Darimiyya
AGROINTEK Vol 9, No 1 (2015)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v9i1.2119

Abstract

Nira siwalan mudah mengalami kerusakan yang umumnya ditandai dengan rasanyayang asam, berbuih dan berlendir karena aktivitas mikroba yang memfermentasi gula padanira.Penggunaan pengawet alami dapat mencegah kerusakan nira.Tujuan penelitian ini untukmengetahui pengaruh penggunaan daun jambu biji dan larutan kapur terhadap kualitas nirasiwalan selama penyimpanan 9 jam. Parameter penelitian meliputi pH, total padatan terlarut,total asam tertitrasi turbiditas serta pengujian sensoris meliputi aroma, kejernihan dan rasanira siwalan. Penelitian ini menggunakan Rancangan Split Plot (Petak Terbagi). Faktor petakutama adalah konsentrasi daun jambu biji segar yang terdiri dari 6% (J1), 10% (J2) dan 14%(J3), sedangkan penambahan larutan kapur 0,5 ml dengan konsentrasi larutan kapur 1% (K1),2% (K2) dan 3% (K3) merupakan faktor anak petak dengan melakukan pengulangan sebanyak3 kali. Hasil penelitian menunjukkan bahwa penggunaan daun jambu biji berpengaruhterhadap nilai pH, total asam tertitrasi, turbiditas, aroma dan kejernihan nira siwalan selamapenyimpanan 9 jam, namun tidak berpengaruh terhadap nilai total padatan terlarut dan rasanira siwalan. Penggunaan larutan kapur hanya berpengaruh terhadap nilai rasa nira siwalan,namun tidak berpengaruh terhadap nilai pH, total padatan terlarut, total asam tertitrasi,turbiditas, aroma dan kejernihan nira siwalan. Sedangkan interaksi keduanya berpengaruhterhadap nilai pH, total padatan terlarut, total asam tertitrasi, namun tidak berpengaruhterhadap nilai turbiditas, aroma, kejernihan dan rasa nira siwalan selama penyimpanan 9 jam.
PENGENDALIAN MUTU DALAM PROSES PRODUKSI RAJUNGAN (STUDI KASUS PT.KELOLA MINA LAUT UNIT SAMPANG) Wicaksananengnaya, Rhesi; Hidayati, Darimiyya; Probowati, Banun Diyah
Rekayasa Vol 6, No 2: Oktober 2013
Publisher : LPPM Universitas Trunojoyo Madura

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Abstract

Rajungan (Portunus pelagicus) is one type of crab which include in family of Portunidae has great potential to become an important fishery commodity exports as a produser of foreign exchange, so Rajungan product (Portunus pelagius) can be controlled through the production proces in order to generate  profits  for  the  company.  This  research  aims to   determine   the types   of   defects that occur during the boiling process and stripping, applying four quality control’s tools during processing of management of quality control, and analyze the factors that affect the quality of the process of boiling and stripping. Analyze quality control using quality  control’s  tools  in  the  form  of  quality  control check sheet, P control chart , pareto diagrams and causal and effects diagram. Check sheets are use to present data in order to facilitate the understanding of the data for further analysis. P control chart used to see whether the defective product is within out of control or not. Identification of the dominant types of defects and determine priority of repairs using pereto diagrams. The next step is to find the factors that cause damage to the product using a causal and effect diagram then prepared a proposal for improvement. The result of data analysis p control chart shows that the process still exists in a state outside the control limits, which meanshaving irregularities. Can be seen on the graph p control chart during the boiling process and stripping. Based on the diagram pareto, immediately made an improvement to the destruction of the most dominant in the boiling process is very mature (42,6 %) and the process of stripping named RB (73,8 %). Making a causal diagram analysis can be known what factors cause the occurrence of disability is a factor of raw materials, tools, methods of work / production processes, and human beings, so that companies can take immediate preventive measures and improvements to reduce the level of disability.
KARAKTERISTIK MANISAN NANGKA KERING DENGAN PERENDAMANGULA BERTINGKAT sohibulloh, Imron; hidayati, Darimiyya; Burhan, Burhan
AGROINTEK Vol 7, No 2 (2013)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v7i2.2054

Abstract

Characteristics by soaking dried candied jackfruit sugar rise. This study examines the rise of sugar immersion or not the characteristics of candied dried jackfruit. Research purposes to determine the concentration of sugar solution and the optimal level of immersion in the manufacture of sugar candied dried jackfruit. The design of the experiment used Completely Randomized Design with two factors: first giving the concentration of sugar solution 3 levels ie 30%, 40% and 50%. The second factor is the level of immersion that for a second soaking soaked in a solution with a higher sugar concentration is 40%, 50% and 60%. Observed variables are organoleptic test, water content, sugar content, sucrose content, and texture analysis. Data were analyzed using ANOVA (Analysis of Variance) Univariate followed by Duncan's test. Research and the level of sugar concentration and immersion significantly affect the color and moisture content. Texture analysis candied dried jackfruit only generate values of hardness and resilience. Highest hardness value sebesar6 candied dried jackfruit, 0120x10 3 on treatment B1A3 (1 time soaking in the sugar concentration of 50%), and the lowest at 5.8347x10 3 treatment B2A1 (2 times soaking in sugar concentration of 40%). Resilience highest value of 0.840 candied dried jackfruit obtained treatment B2A3 (2 times soaking in sugar concentration 60%) and the lowest in treatment B1A3 0.511 (1 time soaking in sugar concentration 50%). Characteristics best candied jackfruit contained on B2A2 treatment (soaking 2 times the sugar concentration of 50%.). B2A2 treatment has karkateristik 17.64% moisture content, sugar content mg/100ml 4.987, 34.0481% yield, hardness 5.9900 x10 3 Ng, resilience 0.540, and the value of a sense of (7.17), aroma (5.27), color (4.73), texture (4.9), and overall preference (4,47).
KAJIAN PENERAPAN GOOD MANUFACTURING PRACTICE (GMP) DI INDUSTRI RAJUNGAN PT.KELOLA MINA LAUT MADURA Ristyanadi, Bhiaztika; Hidayati, Darimiyya
AGROINTEK Vol 6, No 1 (2012)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v6i1.1954

Abstract

Good manufacturing practice is the first step implementation of food safety regulation. PT. Kelola Mina Laut is one of chilled sea crab producers in Madura. It has four branches in Madura,those are in Tanjung Bumi, Noreh, Sampang, and Lobuk. The objective of this research is to assess the effectiveness GMP in four branches of PT. Kelola Mina Laut. The research  uses field observation, data analysis and GMP development as the method. Based on GMP analysis, four branches of PT. Kelola Mina Laut appear to have a cummulative score between 337-369, in which Lobuk has the highest score. Therefore, it can be concluded that PT. Kelola Mina Laut has applied most of GMP elements
ANALISA KARAKTERISTIK MANISAN KERING SALAK(SALACCA EDULIS) DENGAN LAMA PERENDAMAN DAN KONSENTRASI LARUTAN GULA Maulidiah, Arini; Hidayati, Darimiyya; Hastuti, Sri
AGROINTEK Vol 8, No 1 (2014)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v8i1.2033

Abstract

Snake fruit (Salacca edulis) can be made into dried fruit with addition of high concentration of sugar syrup prior to drying. This study aims to determine the effect of the concentration of sugar solution and soaking time on the characteristics of candied snake fruit. The experimental design used was a completely randomized design (CRD) factorial consisting of two factors: the concentration of sugar solution (40%, 50%, 60%) and the soaking time (24 and 48 hours). Each treatment was repeated three times. Data processing on quality of candied snake fruit was done using the General Linear Model (GLM) and univariate test of Duncan Multiple Range Test (DMRT). Results showed that concentration of sugar solution and soaking time gave significant effect on concentration of reducing sugar. Soaking at 48 hours significantly affectedyield, preferences for taste, texture, and overall preferences of candied snake fruit. Interaction of soaking and the concentration of sugar solution significantly affected moisture content of final product.
PEMANFAATAN LIMBAH CANGKANG RAJUNGAN (PORTUNUS PELAGICUS) SEBAGAI PERISA MAKANAN ALAMI Hastuti, Sri; Arifin, Syamsul; Hidayati, Darimiyya
AGROINTEK Vol 6, No 2 (2012)
Publisher : University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v6i2.1978

Abstract

Crabshellwastefromcrabindustry cause enviromentalproblem. Someeffortswereneededtoovercometheproblem. Crabflavourwas a potentialproductwhich has createdusingcrabeggshell. Thisresearchaimedtochoosebestmethodeformakingcrabflavour and toknowtheinfluence of dextrinonitsquality. Theresearchwasdividedintotwostages (the process to make crabshell powder and crabshell flavour). Thepowderwascreatedbyusinghydrolysis and non-hydrolysis. Full randomizeddesignwaschoosenwheredextrin (1, 2, 3%) used as a single factor. According to the result, non-hydrolysis was choosen for making crab flavourer because it improved calcium content (26,82%) and aroma. Meanwhile, based on sensory evaluation, respondents clearly stated ”like” in aroma, taste, colours as well. Statistically, dextrin didn’t produce significant influence in moisture content, aroma, colour, and taste