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Ratri Ariatmi Nugrahani
Universitas Muhammadiyah Jakarta
Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics Social Sciences Other

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The performance of beeswax coating containing vegetable oil-based lecithin as an emulsifier on weight loss and shelf life estimation of mango NURUL HIDAYATI FITHRIYAH; RATRI ARIATMI NUGRAHANI; RUSNIA JUNITA HAKIM
Jurnal Natural Volume 20 Number 2, June 2020
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.365 KB) | DOI: 10.24815/jn.v20i2.16758

Abstract

Fruits are one of the agricultural commodities grown in Indonesia and mango constitutes the third largest. One of the disadvantages in transporting mangoes to long distant markets is the short shelf life when fruits are stored at the room temperature. Some efforts to maintain quality and freshness have been coating the fruits with natural wax/beeswax. This study aimed to determine the effects of beeswax coating containing vegetable oil-based lecithin on physical and weight loss in mango, as well as estimate the shelf life using the Accelerated Shelf-Life Testing (ASLT) method. The coating formulation consisted of beeswax, triethanolamine, stearic acid, vegetable lecithin (soybean: rice bran), and water. Mango coated with beeswax coating with a concentration of vegetable lecithin emulsifier were varied at 0.25, 0.5, 0.75, 1%, and control (without beeswax coating) stored at room temperature 301oK and cooler temperature 286oK. Samples were monitored for five weeks and evaluated periodically for physical change and weight loss. Beeswax coated mango exhibited slower rate of ripening than the control stored in both room and cooler temperatures. The lowest total weight loss of mangoes at both temperatures for 5 weeks with beeswax coating at 0.25% vegetable lecithin emulsifier was 7.25%. The estimation of shelf life using ASLT method and Arrheinus model to mango fruit coated with beeswax coating at 0.25% vegetable lecithin concentration as emulsifier was 36.91 days.
PENGARUH FORMULASI EDIBLE COATING DARI PATI PISANG RAJA BULU TERHADAP PENGHAMBATAN GEJALA CHILLING INJURY PADA TOMAT MERAH Mela Perdana Sunarso; Nurul Hidayati Fithriyah; Ratri Ariatmi Nugrahani
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.73-80

Abstract

As an agricultural country, Indonesia still prioritizes the agricultural sector as one of the industries that play an essential role in supporting the country's economic growth. One of the priority commodities is tomatoes. Tomatoes are very susceptible to damage. This damage will significantly affect the quality of the tomatoes before they reach consumers. It is necessary to have proper post-harvest handling so that tomatoes still have the quality that is always maintained, one of which is cold storage, which has done to lower the temperature of the product so that it will slow down the respiration rate before further post-harvest handling has carried out. However, storage at too low temperatures can cause chilling injury so that the quality of tomatoes decreases. The edible coating method by dipping is an alternative to delay ripening so that it inhibits the metabolic process. This study aimed to determine the effect of storage time and temperature on edible coatings on tomatoes. The research method begins with manufacturing an edible coating solution from Raja Bulu banana starch. With a factorial CRD (Completely Randomized Design) consisting of two factors. The first factor is the storage temperature which consists of two levels, namely refrigerator temperature (0-4áµ’C), chiller temperature (10-15áµ’C), and the second factor is storage time with five levels, namely storage time (2 days; 4 days; 6 days; 8 days and 10 days), so in this study, there is a factorial of 2 x 5 combinations with three replications. The analysis test of the sample results consisted of a weight loss test, color test, organoleptic, and regression analysis. The results obtained on tomatoes with an edible coating indicate a real and significant effect on the inhibition of chilling injury. This study proves that tomatoes given an edible coating using Raja Bulu banana can maintain their quality in cold storage and inhibit chilling injury in tomatoes.
PEMANFAATAN UAP KELUARAN EVAPORATOR UNTUK PENGERINGAN AMPAS TEBU BAHAN BAKAR PABRIK GULA Azrul Syamsu; Nurul Hidayati Fithriyah; Ratri Ariatmi Nugrahani
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.151-158

Abstract

Have been factors that influence on the use of the baggase as fuel. One of them is water contained in the baggase. A sugar factory in Lampung Tengah district is PT Gula Putih Mataram, produce baggase in contained water by 50,10%. The purpose of this research is to know the number of water to levels unloaded on baggase by using heat from steam exodus evaporator. know influence the flow hot air to the water level of optimal for flow of steam exodus evaporator, used to draining bagasse. Know time drying to influence the water level and time best of process of drying bagasse, use of heat from the exodus steam evaporator. And the research methodology used data processing. Where data is collected of direct observation in PT Gula Putih Mataram, and study literature in the form data of a journal before. Using a hot vapor exodus evaporator in heat exchanger, rate obtained hot air flow 36.296,62 kg/hours, with 40°C temperature. Next hot air is used as air dryer in rotary dryer. Air dryer to flow of 32 tons/hours, 33 tons/hours, 34 tons/hours, 35 tons/hours and 36 tons/hours, obtained the the water level of 45,05%; 44,89%; 44,73%; 44,58% and 44,42%. With sample 36 tons/hours take 5 sample drying time. That is 1 hours, 2 hours, 3 hours, 4 hours and 5 hours, and is found the water levels by 44,42%; 38,74%; 33,06 %; 27,38% and 21,70%. Of the results of data processing shows variations in the drying time flow hot air and give a linear variation to the moisture content of reduced the number. Where the bigger the flow air dryer will increase the moisture content of which can be reduced. And time for drying, the longer the drying hence the larger the to amount to the moisture content of which can be reduced.
Coal Fly Ash as Adsorbent in Removing Organic Compounds (COD) From Tanah Tinggi Wastewater Treatment Installation in Tangerang City Muhammad Djarkasih; Ratri Ariatmi Nugrahani; Nurul Hidayati Fithriyah
Journal of Applied Sciences and Advanced Technology Vol 5, No 2 (2022): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.5.2.59-66

Abstract

Coal is a combustible organic mineral; the ash produced from burning coal is fly ash and bottom ash. This study aims to determine the process of treating fly ash waste from coal combustion by activating and characterizing it as an adsorbent and to obtain the best type of adsorbent with a concentration of coal fly ash as an adsorbent in removing organic compounds COD so that it meets the standards. Quality by accordance with the Regulation of the Minister of Environment and Forestry Number 68 of 2016 concerning Domestic Wastewater Quality Standards. The research will be carried out with 2 (two) processes, namely the process of making adsorbents and testing the application of fly ash adsorbents with variations in the concentration of sulfuric acid (H2SO4) 2.5%, 5%, and 10% and variations in stirring time of 60, 90, 120 and 150 minutes, then analyzed the COD (Chemical Oxygen Demand) content so that it meets the quality standards that have been set. The results showed that the fly ash content of coal has the potential to be used as an adsorbent because of the high SiO2 content of 35.8% and the Al2O3 content of 17.0%. Results The initial concentration of COD was 404 mg/l. The final concentration of COD for various stirring times with various H2SO4 activation was 11 mg/l with a stirring time of 150 minutes. Optimum conditions of removal efficiency (%) COD for variation of stirring time with various H2SO4 activation obtained 35.73%, R2 value = 0.9891, and the linear regression equation is y = 0.206x - 4.864 with the value of y is COD efficiency removal (%) and x is stirring time (minutes).
Effects of Drying Time on Yield and Moisture Content of “Sumahe” Powdered Drink Using Spray Dryer Ismiyati Ismiyati; Fatma Sari; Ratri Ariatmi Nugrahani; Anwar Ilmar Ramadhan
Aceh International Journal of Science and Technology Vol 7, No 3 (2018): December 2018
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.28 KB) | DOI: 10.13170/aijst.7.3.9620

Abstract

As people today are becoming more health-conscious, various efforts have been made to keep up one’s health, such as by consuming highly nutritious food and drinks. One of the nutritious food sources produced from bees is honey, bioactive compounds of polyphenols, glyoxal and methylglioxal. Honey could be used as a health drink by mixing with ginger. This health drink is also produced as powdered drink to simplify storing, reduce the use of plastic packaging, and to add product value to increase market share. The aim of this research was to analyze the effects of drying time for 5, 15, and 25 minutes with an addition of maltodextrin on the yield, density, and moisture content of “Sumahe” instant powdered drink, made from cow’s milk, honey, and ginger. The results showed that the longer the drying time, the lower the moisture content of the drink. Meanwhile, the longer the drying time, the higher the yield became. A taste test of “Sumahe” also indicated that from 25 minutes of drying time, most of the panelists rated the drink as tasteful and delicious.
ANALISIS CEMARAN MIKROBA DALAM SEDIAAN OBAT BENTUK LARUTAN ORAL Ananda Kinanty; Priyanto Dwi Nugroho; Ratri Ariatmi Nugrahani
Jurnal Konversi Vol 11, No 2 (2022)
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/konversi.11.2.14

Abstract

Obat sediaan larutan adalah sediaan cair yang mengandung satu atau lebih zat kimia yang terlarut. Kontaminasi bakteri pada obat dapat terjadi pada prosespengolahan bahan awal, produksi dan penyimpanan. Pengujian secara mikrobiologi perlu sekali dilakukan untuk menjamin obat bebas dari cemaran mikroba. Analisis cemaran mikroba kali ini mengunakan 3 parameter. Parameter pertama yaitu uji Total Aerobic Microbial Count (TAMC) dengan metode pour plate menggunakan media TSA (Trypticase Soy Agar) , parameter kedua yaitu Total Yeasts and Molds Count (TYMC) dengan metode poure plate menggunakanmedia SDA(Sabouraud Dextrose Agar) dan parameter ketiga yaitu identifikasi Escherichia coli dimana kontrol positif akan dilanjutkan pengujian dengan metode vitek setelah dilakukan proses pewarnaan Gram. Pengujian ini dilakukan di Laboratorium Quality Control bagian Mikrobiologi QC PT. Kalbe Farma, Tbk. dari tanggal 3 Maret-12 Maret 2020. Berdasarkan hasil pengujian, dapat disimpulkan bahwa sampel tidak mengandung mikroba, kapang, dan khamir serta negatif Escherichia coli sesuai dengan persyaratan metode analisa PT. Kalbe Farma, Tbk
The performance of beeswax coating containing vegetable oil-based lecithin as an emulsifier on weight loss and shelf life estimation of mango NURUL HIDAYATI FITHRIYAH; RATRI ARIATMI NUGRAHANI; RUSNIA JUNITA HAKIM
Jurnal Natural Volume 20 Number 2, June 2020
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v20i2.16758

Abstract

Fruits are one of the agricultural commodities grown in Indonesia and mango constitutes the third largest. One of the disadvantages in transporting mangoes to long distant markets is the short shelf life when fruits are stored at the room temperature. Some efforts to maintain quality and freshness have been coating the fruits with natural wax/beeswax. This study aimed to determine the effects of beeswax coating containing vegetable oil-based lecithin on physical and weight loss in mango, as well as estimate the shelf life using the Accelerated Shelf-Life Testing (ASLT) method. The coating formulation consisted of beeswax, triethanolamine, stearic acid, vegetable lecithin (soybean: rice bran), and water. Mango coated with beeswax coating with a concentration of vegetable lecithin emulsifier were varied at 0.25, 0.5, 0.75, 1%, and control (without beeswax coating) stored at room temperature 301oK and cooler temperature 286oK. Samples were monitored for five weeks and evaluated periodically for physical change and weight loss. Beeswax coated mango exhibited slower rate of ripening than the control stored in both room and cooler temperatures. The lowest total weight loss of mangoes at both temperatures for 5 weeks with beeswax coating at 0.25% vegetable lecithin emulsifier was 7.25%. The estimation of shelf life using ASLT method and Arrheinus model to mango fruit coated with beeswax coating at 0.25% vegetable lecithin concentration as emulsifier was 36.91 days.
Kepok Banana Peel Extract (Musa Paradisiaca) as Antibacterial and Renewable-Biodegradable Surfactant in Liquid Detergent Putri, Shavyta; Redjeki, Athiek Sri; Nugrahani, Ratri Ariatmi
Journal of Applied Sciences and Advanced Technology Vol 7, No 1 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.1.25-34

Abstract

Kepok banana peel contains tannin as antibacterial activity and saponin acts like a surfactant. Detergent is a cleaning agent commonly used by the community. Banana peel is extracted with ethanol solvent to produce antibacterial activity and can be used as a bioadditive. Knowing the antibacterial activity, the extract requires incubation. Because the nature of saponin is the same as surfactant, banana peel extract can be compared with mes surfactant to make liquid detergent. This study was conducted to identify tannin and saponin in banana peel extract, obtain the best banana peel extract yield with the best solvent concentration and the best incubation time for bacterial inhibition, and the best formulation with the addition of extract to the liquid detergent application. The banana peel extraction process with ethanol uses the Ultrasonic Bath Extraction method. The independent variables in this study were the concentration of extraction solvent (50%, 60%, 70%, 80% and 96%) and the formulation of adding banana peel extract (0%, 5%, 10%, 15% and 20%). The best extraction results were obtained with a solvent concentration of 96% which produced a brown liquid with a strong aroma containing tannins and saponins with the best yield of 11.27% and the best antibacterial activity test with a time of 72 hours, then the extract was made into a liquid detergent formulation as a surfactant and compared with MES surfactant so that the best formulation was obtained in formulation F2 (5% banana peel extract 15% methyl ester sulfonate surfactant) and formulation F3 (10% banana peel extract 10% methyl ester sulfonate surfactant).
Quality Improvement and Market Diversification of Honey Bee and Herbal Based Products in Herbal Propolis Mouthwash Hendrawati, Tri Yuni; Nugrahani, Ratri Ariatmi; Hasyim, Ummul Habibah; Puteri, Renty Anugerah Mahaji; Permatasari, Tria Astika Endah; Darto, Darto; Andriansyah, Miftah; Wusono, Ciska Nabilla; Hidayat, Sri
Journal of Applied Sciences and Advanced Technology Vol 6, No 2 (2023): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.6.2.43-48

Abstract

In the 2023 Kedaireka matching fund grant activity with the title pimproving the quality and market diversification of honey bee and herbal based products Scheme Downstreaming innovation from research results for commercialization purposes, innovation has been carried out in the production of herbal propolis mouthwash. In the herbal propolis mouthwash innovation, a formula was combined on the function of propolis and the results of betel leaf extraction for a non-alcoholic mouthwash formula. The prototype of this mouthwash has received a distribution permit from BPOM NA with number NA 18231400102 using the Prolizama brand. This activity is a collaboration between Universitas Muhammadiyah Jakarta and partner CV Madu Apiari Mutiara in Depok, West Java, Indonesia. In this activity, the activities carried out include making prototypes, testing, packaging design, processing BPOM NA distribution permit certification, limited scale production, optimizing online marketing via the website and making a business plan for the UMJ and CV Madu Apiari Mutiara agreement, Madu Apiari Mutiara. Innovation Herbal propolis mouthwash with natural composition, high antioxidant and anti-inflammatory in combination with propolis and betel herbs. In achieving a price competitive product, it is hoped that it will be a substitute for propolis mouthwash imported from Japan without expensive herbs. This formula is being patented. The production of herbal propolis mouthwash is expected to increase partner income. In the implementation of independent learning, the MKBM independent campus is the fulfillment of IKU 2, Students Gain Experience Outside Campus, IKU 3, namely Lecturers Doing Activities Outside Campus and IKU 5, Lecturers' Work Results are Used by the Community. The Depok City Regional Government and the community will have superior products, herbal jelly candy and herbal propolis mouthwash that are healthy and halal. A significant impact for UMJ is an increase in the entrepreneurial atmosphere for lecturers and students.
Manufacture of Biodegradable Plastics from Cassava Starch (Manihot Escullenta) with Variable Glycerol Plasticizers and Chitosan Reinforcement Zihan, Nurul; Nugrahani, Ratri Ariatmi; Hendrawati, Tri Yuni
Journal of Applied Sciences and Advanced Technology Vol 7, No 1 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.1.1-6

Abstract

Biodegradable plastic is an alternative environmentally friendly packaging material because it is made from renewable materials and is scientifically easily degraded by microorganisms and by weather. Renewable material that is abundant in Indonesia is cassava which has high potential as a raw material for making biodegradable plastics. Purpose This study was conducted to determine the process of making biodegradable plastic from cassava starch, knowing the effect of adding glycerol and chitosan to the mechanical properties of biodegradable plastics, and know the characteristics of biodegradable plastics from the best conditions. The process of making biodegradable plastic from cassava starch begins with mixing cassava starch with water and processing until starch dough is formed. Next, glycerol is added to the starch dough and mixed until homogeneous. The final stage is chitosan added to the mixture and stirred until well mixed. The mixture is then heated and molded according to the desired shape. Biodegradable plastics produced from a mixture of cassava starch, glycerol, and chitosan have good mechanical properties and can decompose naturally in the environment for the study variables with concentrations of glycerol 2%,4%,6%,8%,10% and chitosan 1%,3%,5%,7%,9% in a mixture of 100 ml. Mechanical tests such as tensile strength, percent elongation and biodegradation of biodegradable plastics are carried out on product characteristics. The result of this study was to obtain the highest tensile strength in sample 1 of 3.41 Mpa and had an elongation of 68%. While the highest elongation in sample 3 was 130% and tensile strength was 0.26 MPa. The highest biodegradation result in sample 1 was 31.70% and the lowest in sample 5 was 6.55%.
Co-Authors 'Aini Rahmadhaniar Agdila, Alivia Fernanda Ahmad Muhammad Rizki Triaji Aini Rahmadhaniar Alvika Meta Sari Amalia, Fauziah Amalia, Gizka Nurizki Ananda Kinanty Andry Setiawan Andyco Amihardy Anisa Kemala Dewi Anisa Kemala Dewi, Anisa Kemala Anisa Nurtri Lestari Anwar Ilmar Ramadhan Athiek Sri Redjeki Azrul Syamsu Bayu Handika Prasetyo Budiyanto Budiyanto Darto Dedek Rahayu Desart Puto, Abdur Rauf Desy Hijriyah Dicka Ar Rahim Dimah Noviyanti E Ernyasih Endang Rudiatin Faisal, Arief Rafi Fatma Sari Fatma Sari Fitri Nuryani Gati Ningsih Gati Ningsih, Gati Gema Fitriyano Ghaida Gusrinisa Hajir, Siti Hakim, Rusnia Junita Hana Ambarwati Hana Ambarwati Haryadi Wibowo Helfi Gustia Helmi Rizki Hayati Helmi Rizki Hayati, Helmi Rizki Hidayat, Sri hidayat, untung Ika Kurniaty Ika Nirmalasari Imam Hidayat Ismiyati Ismiyati Ismiyati Ismiyati Ismiyati, Ismiyati kadarisman, muhammad Lilik Sumarni Loekman Satibi Loekman Satibi, Loekman Mela Perdana Sunarso Miftah Andriansyah, Miftah Mohammad Gani Rafidianto Muh. Kadarisman Muhammad Djarkasih Muhammad Ilham Setyoaji Muhammad Subehi N Nelfiyanti Nurfida, Anita Nurul Hidayati Nurul Hidayati Fithriyah Nurul Hidayati Fitriyah Priyanto Dwi Nugroho Putri, Dirga Aulia Eka Putri, Shavyta Rahmawati, Rizky Renty Anugerah Mahaji Puteri Retno Farida Rini Siskayanti Rusnia Junita Hakim RUSNIA JUNITA HAKIM Sakalaty, Evanda Enggelina Setyawati, Novita Shafira Hafizhah Putri Suharno Shela Ratri Utami Shela Ratri Utami, Shela Ratri Siswahyudianto Susanty Susanty Susanty Susanty Susanty Susanty, Susanty Syafira, Izzatus Syamsudin Abdullah, Syamsudin Tiara Armelia Ismoyo Tita Diana Ningsih Titik Lestariningsih Titik Lestariningsih Tri Wahyuni Wasyilah Tri Yuni Hendrawati Tria Astika Endah Permatasari Ummul Habibah Hasyim Wenny Diah Rusanti Wika Prasetia Dewi Wusono, Ciska Nabila wusono, ciska nabilah Wusono, Ciska Nabilla Yukarie Ayu Wulandari Yunita Teresa Yusril, Ariadi Yustinah Zahra Hanifah Zihan, Nurul