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All Journal Agrotekno JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) agriTECH Jurnal Ilmiah Teknologi Pertanian Agrotechno Journal of Fibers and Polymer Composites International Journal of Economics, Business and Innovation Research JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI

Lutfi Suhendra

Program Studi Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

Author-ID : 3299787

Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Mempelajari Laju Kerusakan Krim Kunyit - Lidah Buaya (Curcuma domestica Val. - Aloe vera) pada Berbagai Konsentrasi Phenoxyethanol selama Penyimpanan Alfina Via Azizah; Sri Mulyani; Lutfi Suhendra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 9 No 3 (2021): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

This study aimed to: 1) Determine the effect of phenoxyethanol concentrations as a preservative of turmeric-Aloe vera cream. 2) Determine the right phenoxyethanol concentration to produce turmeric-Aloe vera cream with a longer self life and fulfil the requirement of SNI. This study used a Simple Linier Regression. The concentration of phenoxyethanol treatment consisted of 6 levels, namely 0% ; 0,2% ; 0,4% ; 0,6% ; 0,8% and 1%. Each treatment was repeated 3 times, so that 18 experimental units were obtained. The data was analysed using linier regression to showed the damage rate of turmeric-Aloe vera cream during storage. The variables observed in turmeric-Aloe vera cream are homogeneous, pH, specific gravity, viscosity, total phenol, total plate count, and yeast fungus score. The results of the study showed that the best concentrations of phenoxyethanol is 1% : homogeneous, pH 5, specific gravity 1,00130 g/cm3, viscosity 10400 cps, total phenol 6,33176 mg GAE/g, ALT 0 koloni/g dan AKK 0 koloni/g and also that is able to keep the physical properties of turmeric-Aloe vera cream in 41-53 weeks and can inhibits microbial growth until 6 weeks. Keywords : turmeric, Aloe vera, preservative, phenoxyethanol

PENGARUH JENIS DAN KONSENTRASI BAHAN PENJERNIH TERHADAP KARAKTERISTIK CUKA KAKAO Ida Bagus Alit Arcana; Ni Made Wartini; Lutfi Suhendra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 5 No 3 (2017): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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ABSTRACT Byproducts of fermented cocoa beans can be processed into cocoa vinegar. Cocoa vinegar produced is still cloudy, so it needs to be clarified. This study aims to determine the effect of type and concentration of fining agent on the characteristics of cocoa vinegar and to determine the type and concentration of the best fining agents to clarified cocoa vinegar. This study used a factorial Randomized Block Design consisting of 2 factors. First factor is a type of fining agent consisting of bentonite, chitosan and gelatin, and second factor is a concentration of fining agent consisting of 0.5, 1, 1.5, 2, 2.5 ppm. Treatments are grouped into 2 groups to obtain 30 experimental units. The variables observed were clarity, pH, total dissolved solids, total acid, and acetic acid levels. The results showed that the type and concentration of purifying agents had an effect on the characteristics clarity, total dissolved solid, degree of acidity (pH), total acid, and acetic acid level of cocoa vinegar. The best treatment to clarify cocoa vinegar is the treatment of chitosan digesters with a concentration of 2 ppm, which produces cocoa vinegar with characteristics of clarity of 0.46 A; total dissolved solids of 2.90oBrix, degree of acidity (pH) of 4.11; total acid of 0.33 mEq NaOH/g, and acetic acid level of 1.96% w/w. Keywords: Cocoa, vinegar, fining, bentonite, chitosan, gelatin

Karakterisasi Selulosa dari Kulit Buah Kakao (Theobroma cacao L.) pada Berbagai Konsentrasi Hidrogen Peroksida dan Suhu Proses Bleaching Putu Widya Sena; G.P. Ganda Putra; Lutfi Suhendra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 9 No 3 (2021): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Cocoa pod husk (CPH) is a byproduct of cocoa processing that is abundant and has a low economical value. CPH cellulose can be obtained using the delignification and bleaching process. This study aimed to determine the effect of hydrogen peroxide (H2O2) concentration and bleaching process temperature on the characteristics of CPH cellulose and to determine the best treatment to extract CPH cellulose. This research uses a factorial randomized block design, consists of two factors. The first factor is H2O2 concentration, which consists of 10%, 20%, and 30%. The second factor is bleaching temperature, which consists of 60oC, 80oC, and 100oC. The data were analyzed by analysis of variance and continued with the Tukey test. The observed variables were yield, whiteness index, cellulose, hemicellulose, and lignin content. Best treatments were determined using the effectiveness index. The results showed that H2O2 concentration and bleaching process temperature had a significant effect on yield, whiteness index, cellulose, and lignin content of a bleached CPH. Bleaching temperature had a significant effect, but H2O2 concentration had an insignificant effect on hemicellulose content. Interactions between treatments had a significant effect on whiteness index and cellulose content but had no significant effect to yield, hemicellulose, and lignin content of a bleached CPH. The best treatment was obtained using a combination of 30% H2O2 and 100oC bleaching temperature, resulting in 16.88±0.12% yield, 59.67±0.50% whiteness index, 70.40±0.44% cellulose, 6.33±0.19% hemicellulose, and 4.49±0.46% lignin content. Keywords : cellulose, cocoa pod husk, bleaching, hydrogen peroxide, temperature

Karakteristik Kandungan Fukosantin dan Aktivitas Antioksidan Ekstrak Alga Coklat (Sargassum polycystum) pada Perlakuan Konsentrasi Pelarut Aseton dan Suhu Maserasi Ni Kadek Eka Wati; Lutfi Suhendra; Ni Made Wartini
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 8 No 1 (2020): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Fucoxanthin has great potential to be developed as an antioxidant. The purposes of this study were to determine the effect of acetone solvent concentration and maceration temperature on the fucoxanthin content and antioxidant activity of brown algae extract (Sargassum polycystum) and determine the best acetone solvent concentration and maceration temperature on the fucoxanthin content and antioxidant activity of brown algae extract (Sargassum polycystum) . The study was the experimental research which designed by using randomized block desin (RBD) with two factors. The first factor was solvent concentration that consists of 70, 80 and 90 percent. The second factor was maceration temperature that consists of 30±2?, 40±2? and 50±2?. The data were analyzed by analysis of varian (ANOVA) and continued with the Tukey test. The results showed that the concentration of acetone solvent was influential on the content of fucoxanthin and antioxidant activity but did not affect the yield. Maceration temperature is influential on yield, fucoxanthin content and antioxidant activity. Interactions between treatments of acetone solvent concentration and maceration temperature greatly affect the content of fucoxanthin and antioxidant activity but do not affect the yield. The treatment of acetone 80 percent solvent concentration and maceration temperature 30±2? is the best treatment to produce brown algae extract (Sargassum polycystum) with a yield of 3.24 ± 0.45 percent, fucoxanthin content 1.03 ± 0.01 g fukosantin/g and antioxidant activity 99 ± 8.49 ppm and show activity powerful antioxidant. Keywords: Sargassum polycystum, acetone, maceration, fucoxanthin, antioxidant.

KARAKTERISTIK SENYAWA BIOAKTIF EKSTRAK SELADA LAUT (Ulva lactuca L.) PADA KONSENTRASI PELARUT ETANOL DAN LAMA EKSTRAKSI Ni Luh Gede Dina Yunita; Luh Putu Wrasiati; Lutfi Suhendra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 6 No 3 (2018): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Ulva lactuca L. is a type of Chloro phyta or green algae. Ulva lactuca L. contains many chemical compounds that are useful to be developed. This study were determine the effect of ethanol solvent concentration and duration of extraction on the characteristics of extract bioactive compounds. This study used Factorial Randomized Block Design (RAK) with 2 factors as treatment. Factor I is the concentration of ethanol solvent which consists of 3 levels there are 70%, 80% and 90%. Factor II is the length of extraction consisting of 4 levels there are 3 hours, 4 hours, 5 hours, and 6 hours. The results showed that ethanol solvent concentration and extraction time were very influential on total phenolic content of sea lettuce extract. While the interaction treatment of ethanol concentration and extraction time greatly affect the levels of vitamin C and ?-tocopherol levels. Ethanol concentration of 90% and 5 hours extraction time resulted in the best extract of Ulva lactuca L. with characteristics of vitamin C content of 35.64 mg / 100g., Total phenolic 694.57 mg GAE / 100 g, and ?-tocop herol content of 308.54 mg / 100g. Keywords : Ulva lactuca L, solvent concentration, extraction time, vitamin C, phenolic ?-tokoferol

Karakteristik Krim Kunyit Daun Asam (Curcuma domestica Val. - Tamarindus indica L.) pada Perlakuan Konsentrasi Emulsifier dan Waktu Pengadukan Mujahidah .; Sri Mulyani; Lutfi Suhendra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 8 No 3 (2020): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

This study aimed to know cream of turmeric tamarind leaves on the treatment of concentration emulsifier and stirring time and to determine the concentration emulsifier and stirring time to produce characteristics of cream fulfill requirement of SNI. This study used a randomized block design with two factors. The first factor was the concentration emulsifier which consist of three levels, namely 3, 5 and 7%. The second factor is stirring time which consist of three levels, namely 5, 7.5 and 10 minutes. The data were analyzed by analysis of variance (ANOVA) and continued with the tukey test. The result of the study showed that concentration emulsifier has an effect on the adhesion time, pH, viscocity and spread power. The stirring time has an effect on the adhesion time. Concentration emulsifier 5% and 7% with stirring time 10 minutes were creams that fulfill requirement of SNI. The characteristics cream of concentration emulsifier 5% with stirring time 10 minutes is: homogeneus, separation ratio = 1, adhetion time 48.52 seconds, viscocity 3550 cp, spread power 6.72 cm and pH 6.60. The characteristics cream of concentration emulsifier 7% with stirring time 10 minutes is: homogeneus, separation ratio = 1, adhetion time 28.82 seconds, viscocity 3650 cp, spread power 6.79 cm and pH 6.45. Keywords : Span 80, tween 80, stirring time, turmeric and tamarind leaves.

Pengaruh Ukuran Partikel dan Waktu Maserasi terhadap Ekstrak Virgin Coconut Oil (VCO) Kunyit (Curcuma longa L.) sebagai Pewarna Alami Aldi Oktavian; Lutfi Suhendra; Ni Made Wartini
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 8 No 4 (2020): Desember
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Turmeric contains a carotenoid that can be used as a natural dye by extracting a carotenoid compound using VCO. This research is meant to know the effect of particle size and time of maseration to VCO turmeric extract as natural dye and to determine the impact the best particle size and time of maseration to produce VCO turmeric extract as natural dye. This experiment used a random group design with two factors. First factor is particle size which is composed of 40, 60, and 80 mesh. Second factor in time of maseration which is composed of 4, 6 dan 8 hours. Data is analyzed with variance analysis and followed by Tukey test. Research shows interactions between particle size and time of maseration have very real impact on carotenoid total, betacarotene level, and the reddish level. Interagency interaction have real impact on brightness level but have no real impact on yield and yellowish level. Best treatment to produce VCO turmeric extract as natural dye are with 40 mesh for particle size and 6 hours for time of maseration with characteristic of yield 73,26±0,15 percent, carotenoid total in the amount of 205,78±0,40 µmol/L, betacarotene level in the amount of 9,99±0,07 mg/g, brightness level 43,06±1,02, reddish level 15,31±0,95, and yellowish level 42,33±0,61. Keywords : Turmeric, VCO, extraction, carotenoid, natural dye

Pengaruh Jenis Pelarut dan Ukuran Partikel pada Ekstraksi Kulit Buah Kakao (Theobroma cacao L.) menggunakan Metode Microwave Assisted Extraction (MAE) terhadap Karakteristik Ekstrak Luh Putu Ayu Sumantining; G.P. Ganda Putra; Lutfi Suhendra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 10 No 1 (2022): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

This research was conducted to determine the effect of the type of solvent and particle size on the extraction of cocoa pods using the Microwave Assisted Extraction (MAE) method on the characteristics of the extract as a source of antioxidants and to determine the type of solvent and particle size in the extraction of cocoa pods using Microwave Assisted Extraction (MAE) precise in obtaining the highest antioxidant capacity extract. The experimental design used in this study was a factorial randomized block design which was grouped into 2 groups based on the implementation time and consisted of two factors. The first factor is the type of solvent which consists of 3 levels, namely methanol, ethanol and acetone. The second factor is particle size which consists of 3 levels, namely 40 mesh, 60 mesh and 80 mesh. The data were analyzed by analysis of variance and continued with Tukey test. The results showed that the type of solvent and particle size had a very significant effect on the yield, total phenolic, total flavonoid and antioxidant capacity. The interaction between treatments had a very significant effect on total flavonoids and antioxidant capacity, and had a significant effect on total phenolics, but had no significant effect on the yield of cocoa pod peel powder extract. The best treatment to produce cocoa pod peel extract on extraction using MAE was ethanol solvent and particle size 80 mesh with yield characteristics of 12.23±0.61% total phenolic 148.84±0.10 mg GAE/g extract, total flavonoids of 94.16±0.23 mgQE/g extract, and antioxidant capacity of 133.30±0.49 mg GAEAC/g extract. Keywords : Solvent type, particle size, antioxidants, cocoa pod husk

Pengaruh Perbandingan Fase Minyak Virgin Coconout Oil (Cocos nucifera L.) dan Lemak Kakao (Theobrama Cacao L.) serta Suhu terhadap Karakteristik Sediaan Krim I Kadek Aditya Prasatya; Lutfi Suhendra; Ni Made Wartini
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 8 No 2 (2020): Juni
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Virgin coconut oil turn into liquid based in a room temperature that has lot of vitamin E and coconut acid. Cocoa butter is solid in temperature that has lot of stearic acid. This research aims to know the temperature effects and comparation of oil phase , virgin coconut oil : cocoa butter in the characteristic of cream based determine the temperature and comparation of oil phase (virgin coconut oil : cocoa butter) to produce cream based. The trial design in this research was the second factorial trial. This reasearch used factorial randomized block. First factorial was the comparation oil phase of virgin coconut oil : cocoa butter consist of 3 levels, that is 1:3, 1:5 and 1:7. While in the second factorial the was heating temperatures, consist of 3 levels that is 60±2°C, 70±2°C and 80±2°C. The comparation treatments of oil phase virgin coconut oil : cocoa butter that really affected the viscosity, cohenren power, diameter of spread power and seperation ratio, heating temperature really affected with diameter of spread power and coherent power. Tempererature treatment and comporation of oil phase affected the diameter of spread power. The temperature treatment and oil phase ratio have a very significant effect on the dispersal power. Comparison of VCO and cocoa butter treatment (1:7) with a temperature of 80±2°C is the best treatment to produce cream preparations with characteristics of a homogeneous cream, viscosity (46.000 cp), cohenren power (9,77 seconds), diameter of spread power (7,075 cm), separator ratio (0,27 cm) and pH (6,65). Keywords: Virgin coconut oil, cocoa butter, temperature, characteristic, based cream.

Pengaruh Suhu dan Waktu Maserasi terhadap Karakteristik Ekstrak Daun Bidara (Ziziphus mauritiana L.) sebagai Sumber Saponin Sarah Chairunnisa; Ni Made Wartini; Lutfi Suhendra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 7 No 4 (2019): Desember
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Bidara (Ziziphus mauritiana L.) is one of the most natural ingredients that has the potential as a source of saponins. Saponins can be used as a natural surfactant which can replace the synthesis surfactant. The purposes of this research were to determine the effect of temperature and time of maceration on the characteristics of bidara leaf extract (Ziziphus mauritiana L.) and to obtain the best maceration temperature and time in producing the bidara leaf extract (Ziziphus mauritiana L.) as a source of saponins. This research is using randomized block design with two factors. The first factor is the maceration temperature which consists of 3 levels, namely 29±1°C, 40±2°C, and 50±2°C. The second factor is the maceration time which consists of 3 levels, namely 36 hours, 48 hours, and 60 hours. Each treatment is grouped into 2 based on the time of implementation so obtained 18 units. The results showed that treatment of temperature and maceration time and interaction between the treatment were had very significant on the yield, crude saponins levels, and the height of bidara leaf extract foam (Ziziphus mauritiana L.) as the source of saponins. Temperature of 50±2°C and maceration time of 48 hours is the best treatment to produce bidara leaf extract (Ziziphus mauritiana L.) as a source of saponin with a yield characteristic of 42.59±0.02%, crude saponin levels of 40.84±0.09% and foam height 29.03±0.38 mm. Keywords: Ziziphus mauritiana L., saponins, extraction, temperature, maceration time

Co-Authors A. A. Dewi Anggreni Aldi Oktavian Aldo Taufan Reviandi Alfina Via Azizah Amirrulloh, Muchammad Rizqi Amna Hartiati ANAK AGUNG MADE DEWI ANGGRENI Anak Agung Made Dewi Anggreni Anissa Fitri Nur Aini Bambang Admadi Harjosuwono Bambang Admadi Harsojuwono Bambang Admadi Harsojuwono Bambang Admadi Harsujuwono Bambang Admadi Hasojuwono Chusnul Hidayat Chusnul Hidayat Chusnul Hidayat Dewi, Ni Made Raditya Shinta Diana Puspitaningtyas Dicki Cahya Putra Anggelo Dwi Putri Nurmalasari Eka Nur Diana Elfrida Ratnawati Emita Dwi Cahyana Erina Novandri Elsa Esra Palenta Sinaga Ezra Elkana Karo Sekali Fachriansyah Ismaimoon Fatahillah, Mufidah Riska G. P. Ganda Putra G.P. Ganda Puta G.P. Ganda Putra Gek Nanda Putri Dana Asih I Dewa Gde Mayun Permana I Gede Esti Widiantara I Gede Rusli Supariatna I Gusti Ayu Lani Triani I Gusti Ayu Sri Krsna Devi I Kadek Aditya Prasatya I Kadek Agus Nuada I Ketut Dio Prasetya I Ketut Satriawan I Komang Wiria Santiyoga I Made Dwipayana I Made Indra Pratista I Made Mas Oka Hendrawan I Made Suardana I Putu Fajardhiputra Hernes I Putu Hendra Adi Prasanta I Putu Lingsan Pratyaksa I W W Aryanika I Wayan Arnata I Wayan Mika Pratama I Wayan Tika Ida Ayu Bela Anggraeni Ida Ayu Kade Sintya Yulianti Dewi Ida Bagus Alit Arcana Ida Bagus Bas Baskara Ida Bagus Gede Brahmantara Ida Bagus Wayan Gunam Ika Martoquito Lumbanraja Irawaty Yolanda Hutajulu Irena Savitri Jhon Berry Finn Damanik Kadek Ngurah Ghandhi Danu Subagan Komang Gede Irwan Suparwan Komang Rumiarsa Luh Kurnia Dwi Indriyani Luh Putu Ayu Sumantining Luh Putu Wrasiati Luluk Nurmalasari Made Hary Sayoga Made Wahyu Nadaiswara Putra Mira Ardhaning Swari Misbach Baihaqi Zen Muhamad Erwin Efendi Mujahidah . Mujahidah Mujahidah Ni Kadek Eka Wati Ni Kadek Yeni Dwipayanti Ni Komang Novy Trisna Ardyanti Ni Luh Gede Dina Yunita Ni Luh Putu Ravi Cakswindryandani Ni Made Purindah Sari Ni Made Wartini Ni Made Wartini Ni Made Wartini Ni Nyoman Sri Yulianthi Ni Putu Noviantari Ni Putu Suwariani Ni Wayan Sukmayanti Novia Esterulina Purba NYOMAN SEMADI ANTARA Praycelia Marissa Miranda Pudji Hastuti Pudji Hastuti Putra, Anak Agung Gede Surya Pradana Putu Ayu Sucitawati Putu Julyantika Nica Dewi Putu Widya Sena Reni Okta Fitriani Reren Rahmadhani Rio Rambo Siallagan Riwina Bibina Br Sinulingga Riza Ibnu Fajar Rossa Ayu Sutardianie Rubbana Sunardi Sarah Chairunnisa Sasha Patrisia Shenni Maulina Sri Mulyani Sri Mulyani Sri Rahardjo Sri Raharjo Sumiyati - Supriyadi Supriyadi Tania Suciati Tia Larasati W. Angga Pranayasa Wiwik Sri Minarni Yohanes Setiyo Yohanes Wiliam Pagur

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