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All Journal GEMA TEKNOLOGI METANA Jurnal Keteknikan Pertanian Tropis dan Biosistem JMM (Jurnal Masyarakat Mandiri) Jurnal Pengabdian Vokasi Journal of Vocational Studies on Applied Research Innovative: Journal Of Social Science Research

Edy Supriyo

PSD III Teknik Kimia

Author-ID : 394140

Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Other

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Test Stability Of Natural Color Dyes From The Lether Fruit Of Palmâ€™s Waste Broto, R.T.D. Wisnu; Supriyo, Edy; Pudjihastuti, Isti; Arifan, Fahmi
METANA Vol 14, No 1 (2018): Juni 2018
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (916.574 KB)

The leather fruit of palm (Borassus flabilifer) is one of the local fruit native to Indonesia produced from palm plants are very abundant due to not knowing the season During this leather palm fruitÂ is still not widely used and is only regarded as wastes. The leather palm fruitÂ color has anthocyanin substances which are natural pigments reddish color. The extraction of the leather palmÂ by using different types of solvents include water, ethanol water mixture, the mixture of water - propanol, a mixture of water-ethanol-propanol, ethanol, a mixture of ethanol - propanol and propanol. The best extraction results were obtained by using ethanol solvent. Furthermore, stability test of pigment extractâ€™s the leather fruit of palm (anthocyanin) to pH, temperature, light, and color was done by using UV-Vis spectrophotometer at maximum wavelength 520 nm. In the stability test of pigment extractâ€™s the leather palm fruit (anthocyanin) to pH, pH range 0-5 with interval 1 obtained the best pH 1 with absorbance value 0,3965. Temperature stability test with temperature range 50 -100oC with 10oC range gives best temperature 50oC with absorbance value 0,387. The results of stability test ofÂ pigment extractâ€™s the leather fruit of palm (anthocyanin) to light showed decrease of absorbance value directly proportional to duration of irradiation The natural anthocyanin dye stability test derived from siwalan peel shows the extract with the greatest total anthocyanin having a large color intensity as well.Â Uji Stabilitas Zat Warna AlamiÂ dari LimbahÂ Kulit buah SiwalanÂ Buah siwalan (Borassus flabilifer) adalah salah satu buah lokal produk asli Indonesia yang dihasilkan dari tanaman lontar sangat melimpah karena tidak mengenal musim. Selama ini kulit buah siwalan masih belum banyak dimanfaatkan dan hanya dianggap sebagai limbah. Kulit buah siwalan mempunyai kandungan zat warna antosiaanin yang merupakan zat warna alami berwarna kemerah-merahan. Kulit buah siwalan di ekstraksi dengan menggunakan berbagai jenis solven antara lain air, campuran air etanol, campuran air â€“ propanol, campuran air-etanol-propanol, etanol, campuran etanol â€“ propanol dan propanol. Hasil ekstraksi terbaik didapatkan dengan menggunakan solvent etanol.Â Selanjutnya dilakukan uji stabilitas ekstrak zat warna kulit buah siwalan (antosianin)Â terhadap pH, suhu, sinar, dan warna dengan menggunakan spektrofotometer UV-Vis pada panjang gelombang maksimum 520 nm. Pada uji stabilitas ekstrak zat warna kulit buah siwalan (antosianin)Â terhadap pH, rentang pH 0-6 dengan interval 1 didapat pH terbaik 1 dengan nilai absorbansi 0,3965. Uji stabilitas suhu dengan rentang suhu 50 -100oC dengan rentang 10oC menghasikan suhu terbaik 50oC dengan nilai absorbansi 0,387.Â Hasil uji stabilitas ekstrak zat warna kulit buah siwalan (antosianin)Â terhadap sinar menunjukkan penurunan nilai absorbansi berbanding lurus dengan lamanya penyinaran. Uji stabilitas zat warna alami antosianin yang berasal dari kulit buah siwalan menunjukkan ekstrak dengan total antosianin paling besarÂ memiliki intensitas warna yang besar pula.Â Â

Efektifitas Pemakaian Solvent Sebagai Pelarut Formula Insektisida Dalam Membasmi Nyamuk Aedes Aegypti Guna Mencegah Penyakit Demam Berdarah Dengue Supriyo, Edy; Nugraheni, Fransisca Sri; Broto, R.T.D. Wisnu
METANA Vol 14, No 2 (2018): Desember 2018
Publisher : Universitas Diponegoro

Formula yang ada dipasar bebas hanya dapat membunuh nyamuk saja, maka dalam penelitian ini akan dilakukanÂ Produksi formulasi insektisida sebagai insektisida alternative pembunuh nyamuk dan jentik, dimana agrisol dan dodecyl benzen sulfonat merupakan emulsifier nonionic dan anionic sert bersifat hydrophilic. Penelitian ini bertujuan untuk menentukan konsentrasi emusifier yang tepat dalam proses formulasi insektisida, sehingga kestabilan emulsi antara minyak dengan air dalam waktu yang cukup lama Pada percobaan pembuatan emulsifier konsentrat kemudian dilakukan uji kestabilan emulsi antara minyak dan air serta uji effikasi Maka dapat diproduksi formula yang digunakan sebagai bahan dasar insektisida dalam membasmi nyamuk dan jentik nyamuk Aedes aigepty. Disamping itu juga dapat menjadi formula obat nyamuk (insektisida) alternatif yang mudah diaplikasikan oleh masyarakat. Hasil penelitian menunjukan bahwa emulsifier concentrat yang terbaik adalah pada percobaan dengan formula komposisi: 17,38% propoxure; Malathion 17,39% agrisol; 13,01%Â DBS, 47,83 % Xyline dan 4,35% additive dalam % berat. Dengan total emulsifier yang digunakan 30,5 % w/wÂ equivalent dengan 30 ECÂ Dari uji kestabilan antara minyak dan air didapat pelarut yang terbaik adalah thiner, dengan membentuk micro emulsi pada lapisan air sampai 12 minggu lebih, kestabilan emulsi tercapai pada CMC 0,42 % v/v pada lapisan minyak. Dari uji effikasi dengan pengencer thiner sebanyak 10x setelah dianalisa profitabilitas sesuai LD 50, didapat dosis . 0,025 -0,25 % (v/v), baik untuk telur nyamuk maupun jentik Aedes aegypti dengan prosentasi kemation 45-90%Â Â Effectiveness of Solvent Usage as a Solvent for Insecticide Formula in Eradicating Aedes Aegypti Mosquitoes to Prevent Dengue Hemorrhagic FeverÂ Pesticide formulation which are available in market are only killed the mosquitos but not the larvae. Therefore Production formulation of insecticide as inscticide alternative to eridicate mosquitos and its larvae with agrisol and dodecyl benzen sulfonat as emulsifier nonionic and anionic hydrophilic. The reseach work was aimed to determine the best emulcifier concentrate in pesticide formulationÂ so that the emulsion of oil and water will be stable for a long time.Â In reseach work the emulsifier concentrate was made, than emulsion stability test between oil and water as well as its effectivity were condected. This formulation could be used as active engridient for insecticide to kill Aedes aigepty mosquitos and its larvae and could be applied in the community.Â The research showed that formulation consist of komposisi: 17,38% propoxure; Malathion 17,39% agrisol; 13,01%Â DBS, 47,83 % Xyline dan 4,35% additive dalam % berat. Dengan total emulsifier yang digunakan 30,5 % w/wÂ equivalent 30% w/w.Â Stability test of oil and water showed that the best solvent is thiner,Â and formed micro emulsi on water film for more than 12 week.Â Emulsion was stable by CMC 0,42 % v/v on oil film. From effication test and than analysis profitability revealed that LD 50, was . 0,025 -0,25 % (v/v), both for larvae and mosquitos presented dead 45-90%.Â

Efikasi Formula Insektisida Berbahan Aktif Propoxure Dan Malathion Terhadap Vektor Penyakit DBD Supriyo, Edy; Broto, R.T.D. Wisnu; Pujihastuti, Isti
METANA Vol 14, No 1 (2018): Juni 2018
Publisher : Universitas Diponegoro

Beberapa formula insektisida tidak efektif untuk membasmi vektor penyakit Demam berdarah dengue sehingga digunakan formula kombinasi beberapa insektisida golongan organofosfat dan karbamat yang terbukti memenuhi standar Komisi Pestisida Indonesia. Penelitian ini bertujuan untuk Â menguji efikasi formulasi campuran golongan organofosfat dan karbamat terhadap vektor DBD Aedes aegypti strain Semarang. Formulasi insektisida yang digunakan mempunyai komposisi propoxure 17 %, Malathion 3 %, agrisol 13 %, DBS 7 %, Xyline 55 %, dan additive 5 % (% berat). Uji efikasi (uji LD 50)dilakukan dengan menggunakan hewan uji nyamuk Aedes aegypti strain kota Semarang. Sebelum digunakan uji efikasi, formula insektisida cair diencerkanÂ 10 kali dengan pelarut adthiner. Uji efikasi menunjukkan bahwa semua hewan uji tersebut 90% mati pada dosis 0,250 cc/L sehingga disimpulkan bahwa dosis yang terbaik untuk digunakan pada foging adalah 0,250 Â cc/ L. Â Effication Test Of Insecticide Formula With Active Ingredient Of Propoxure And Malathion To DBD Disease VectorÂ Several insecticide formulae have not been effective to eridicate the vector of dengue fever disease therefore the combination some insecticide of organophosphate and carbamate has been proved to match with Indonesian Pesticide Commision. The present work was aimed to do the effication test of Â insecticide formulation of organophosphate and carbamate on vector of DBD. Insecticide formulation were consisted of 17 % propoxure, 3 % Malathion, 13 % agrisol, 7 % DBS, 55 % Xyline, and 5 % additive (% weight). Effication test (LD 50)use mosquitoes of Aedes aegypti Semarang strain. Prior the test the insecticide formulation was diluted 10 times with adthiner solvent. Effication test showed that 90%Â mosquitoes was killed at dose of formulation 0,250 cc/L. Therefore it is conclused that 0,250 cc/L of insecticide formulation was recommed for Aedes aegypti fogging.

SISTEM PENGOLAHAN LIMBAH GAS CIANIDA PADA INDUSTRI PESTISIDA STUDI KASUS PT. ALFA ABADI PESTISIDA - JAWA BARAT Supriyo, Edy
METANA Vol 5, No 2 (2007): Desember 2007
Publisher : Universitas Diponegoro

Abstract Â Pesticide industries produce substance to kill pest and weeds, therefore product,side product, raw Â material and its wastes are hazardous and poison. The main pollution from pesticides industries are air pollutant. According to property of the wastes, treatment wastes include combination of absorbtion, catalytic and condensation order to match with limiting value by government. After being treated, the component moritored i.e. CN was reduced from 10 mg/lt become 0.01 mg/lt Â Keywords : cyanide, pesticide industry. Â

PEMBERDAYAAN INDUSTRI KECIL KERIPIK PISANG DALAM UPAYA MENUJU INDUSTRI MANDIRI Pudjihastuti, Isti; Supriyo, Edy; Hartati, Retno
METANA Edisi Khusus Februari 2011
Publisher : Universitas Diponegoro

Abstract Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â The development of micro industries, in banana chip micro industry to the member of group which is culinary enterprise Pemalang speciallized is give suitable solution to consument for giving natural culinary with high nutrition value independently and cheap.The development of micro industries is circular activity that consist of briefing about the use of gelatse system in banana chip production by naturally and independently, the suitable tachnique of banana chip production, production of furnace completely by steack as pilot plan, assitancy when the producer makes snack in gelatse system. Moreover, the taste of snack more delicious, the market bigger.

PRODUKSI FORMULASI INSEKTISIDA CAIR BENTUK EMULSIFIER CONCENTRATE YANG EFEKTIF GUNA MEMBASMI NYAMUK AEDES AEGYPTI DALAM USAHA MENCEGAH PENYAKIT DEMAM BERDARAH Supriyo, Edy; Abidin, Zainal; Nugraheni, Nugraheni; Wahyuni, Sri
METANA Edisi Khusus Februari 2011
Publisher : Universitas Diponegoro

Abstract Â Liquid pesticide formulation in the form of emulsifier concentrate (EC) is more preferable because it does not form clogging and blocking in the tools and precipitating that harden. Based on fired capacity in the whole pesticide formulation industry, about 25 % produce emulsifier concentrate. In the emulsion formulation, the important point is unite insoluble matter become a homogeny and stable formulation for long period. The selection of emulsifier type is very important because it is influenced by quality and EC formulation stability. Result formula very good is 20 % propoxure; 5 % Malathion; 5 %; agrisol ; 20 % DBS; 45 % Xyline dan 5 % additive (%w/w), concentration affection test 0.025% v/v for thinner solvent in 20 strain aedes aegypti mosquitoes at Semarang killed on 2 hours = 4 mosquitoes, 4 hours = l0 mosquitoes, 6 hours = 16 mosquitoes and on 8 hours all mosquitoes had been died. From emulsion stability test, in oil phase and water phase was found terpentine as stable solvent in the emulsion form, with separated oil percentage at concentration 3mg/l about 42%. In water phase emulsion forms micro emulsion with white fog colors in whole concentration 1, 2 and 3 ppm Â Keyword: Emulsifier Concentrate

PRODUKSI SIRUP GLUKOSE DARI PATI SECARA ENZYMATIK Supriyo, Edy; Kurniawan, Dedy
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Â Abstract Â In the prodacution of tapioca starch, before the starch being dried, glucose syrup could be produced wih ghigh concentrotion of maltose and glucose using enzymatic processes. Hidrolized tapioca starch using a-amylase enzyme which comes from Aspergilus niger produce concentration of syrup i.e. hanya 42,88 %, while using commercial a-amylase enzymes of NOVO (AMG 3001) the conversuion yiled was 114%. Â Beside the ash content is still high make the syrup colour become cloudy, whilst glucose syrup produced with a-amylase enzymee is very clear. Â Keywords : syrup glucosa, Aspergilus niger, a-amylase, tapioca starch

Transesterifikasi Minyak Kelapa Sawit menggunakan Katalis Kalsium Oksida (CaO) menjadi Biodiesel Eka Putri, Presyta Chalida; Supriyo, Edy
METANA Vol 16, No 2 (2020): Desember 2020
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/metana.v16i2.34193

Bioedisel merupakan bahan bakar alternatif yang menjanjikan yang dapat diperoleh dari minyak nabati maupun lemak hewani melalui reaksi transesterifikasi dengan alkohol. Minyak nabati mempunyai potensi yang cukup besar untuk bahan bakar alternatif mesin diesel dengan dilakukan reaksi transesterifikasi. Penelitian ini dilakukan untuk mengetahui pengaruh suhu (550C dan 650C), konsentrasi katalis (3% dan 5%) dan %berat metanol (30% dan 50%) terhadap yield metil ester yang dihasilkan dan dilakukan optimasi proses dengan variasi variabel suhu transesterifikasi untuk menentukan besar yield biodiesel minyak kelapa sawit. Dari penelitian didapatkan suhu transesterifikasi optimum adalah 600C dengan yield sebesar 89,98% untuk konsentrasi katalis 3% dan 50% berat metanol. Biodiesel yang didapatkan memiliki densitas sebesar 838 kg/m3 (standar Pertamina815-860 kg/m3), viskositas sebesar 4,01 mm2/sec (standar Pertamina 2,0 â€“ 4,5 mm2/sec), bilangan asam sebesar 0,45 mgKOH/gr (standar Pertamina maks 0,6), flash point sebesar 630C (standar Pertamina min 520C) dan angka setana sebesar 48,45 (standar Pertamina min 48). Serta pengaplikasian biodiesel dengan uji kebisingan biodiesel (B30) minyak kelapa sawit pada mesin fogging sebesar 79,9 dB dan pada kebisingan solar pada mesin fogging sebesar 81,6 dB.

Konsentrasi Polyfenol pada Teh Hitam Celup Komersial Produksi Perkebunan Teh di Jawa Tengah Supriyo, Edy; Pudjihastuti, Isti
METANA Vol 17, No 2 (2021): Desember 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/metana.v17i2.41776

Teh merupakan minuman yang dihasilkan dari pucuk daun tanaman Camellia sinensis Â yang tumbuh di pegunungan pada ketinggian 600â€“2500 m dpl. Teh hitam merupakan jenis teh yang banyak dikonsumsi masyarakat Indonesia. Teh ini diproduksi dengan cara fermentasi melalui proses oksidasi enzimatis katekin oleh polifenol oksidase. Teh hitam yang dikemas dalam bentuk the celup banyak digemari konsumen. Â Tujuan dari penelitian ini mengetahui konsentrasi polyfenol dalam teh hitam celup komersial. Sampel teh hitam celup komersial dengan merk dagang TP, TDT, TB, TL, Â TD, dan TM diproduksi oleh enam perkebunan teh di Jawa Tengah yang diperoleh secara acak dari swalayan di Kota Semarang.Â Â Kandungan polyfenol pada sampel teh hitam celup dianalisa dengan menggunakan spetrofotometer UV-Vis pada panjang gelombang 725nm. Hasil penelitian menunjukkan bahwa teh hitam celup komersial yang beredar di Kota Semarang telah memenuhiÂ standard SNI 3753â€“2014, dengan rata-rata konsentrasi polyfenol 8,83-43,63 %b/b. Analisa ZscoreÂ menunjukkan tidak ada perbedaan yang sangat nyata antar konsentrasi polyfenol di enam sampel teh hitam celup komersial, hal ini dimungkinkan dengan adanya standarisasi proses produksi teh hitam di berbagai industri teh di Indonesia. Dan teh hitam celup komersial TDT mempunyai konsentrasi polyfenol diatas rata-rata yaitu 43,63 % b/b. Â Â Â Tea is a drink produced from the leaves of the Camellia sinensis plant that thrives in the mountains at an altitude of 600â€“2500 m above sea level. Black tea is a type of tea that is widely consumed by Indonesian people. Black tea is produced by fermentation, namely the process of enzymatic oxidation of catechins by polyphenol oxidase. Black tea is produced in several packages, including as black tea bags. The purpose of this study was to determine the concentration of polyphenols in commercial black tea bags. Samples of commercial black tea bags with the trademarks TP, TDT, TB, TL, TD, and TM were produced by six tea plantations in Central Java which were obtained randomly from supermarkets/stores in Semarang City. The polyphenol content in black teabag samples was analyzed using a UV-Vis spectrophotometer at a wavelength of 725nm. The results showed that the commercial black tea bags marketed in the Semarang City had met the standards of SNI 3753â€“2014, with an average polyphenol concentration of 8.83-43.63% w/w. The Zscore analysis showed that there was no significant difference between the concentrations of polyphenols in the six samples of commercial black tea bags, this may cause by the standardization of black tea production processes in various tea industries in Indonesia, but commercial black tea bags with the trademark TDT had polyphenol concentrations above the average is 43.63% w/w.

Kandungan Mikroplastik Pada Air Minum Dalam Kemasan (AMDK) yang Beredar di Semarang, Jawa Tengah Supriyo, Edy; Noviana, Siti Nurlaela
METANA Vol 19, No 2 (2023): Desember 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/metana.v19i2.58548

Mikroplastik merupakan partikel plastik yang berukuran 1–5000 μm. Mikroplastik dapat ditemukan dimana saja dan salah satunya adalah pada air minum. Air minum dalam kemasan (AMDK) selama ini dianggap sebagai produk higienis sehingga aman dikonsumsi, dan menjadi andalan masyarakat untuk memenuhi asupan cairan tubuh. Penelitian ini bertujuan untuk menganalisis kandungan mikroplastik yang terdapat dalam AMDK yang beredar di Semarang, Jawa Tengah. Sampel berupa AMDK merek A dan P dalam kemasan botol plastik bervolume 600 dan 500 mL serta gallon bervolume 19 Liter diambil dari distributornya di Kota Semarang, yang dipanaskan dengan sinar matahari pada suhu 28 dan 40oC. Air sampel kemudian disaring menggunakan membrane filter PTFE hydrophilic dengan pori 0,22 µm dan dikeringkan dalam desikator selama 24 jam, ditimbang serta diamati dengan mikroskop stereo dan dengan FTIR Spectometer. Hasil penelitian menunjukkan bahwa di semua sampel terdapat mikroplastik dalam bentuk fragmen dan fiber yang berturut-turut berukuran 1,91-44,85µm dan 2,94-130,02 µm. Mikroplastik berukuran 1–10 µm mempunyai angka Z-score terbesar yaitu 1,953. Jumlah dan berat mikroplastik tertinggi ditemukan pada air dalam kemasan botol P pada suhu 40oC yaitu 97 partikel/500 mL dan 0,0136 gr. Mikroplastik yang ada dalam AMDK merupakan plastic dengan gugus fungsi polyethylene terephthalate (PET), yang diperkirakan berasal dari kemasan AMDK tersebut. Microplastics are plastic particles measuring 1–5000 μm. Microplastics can be found anywhere, and one of them is in drinking water. Bottled drinking water (or Air Minum dalam kemasan/AMDK) has long been considered hygienic. Hence, it is safe for consumption and has become a mainstay for people to fulfill their body's fluid intake. This research aims to analyze the microplastic content in AMDK marketed in Semarang, Central Java. Samples in the form of AMDK brands A and P in plastic bottles of 600 and 500 ml and gallons with a volume of 19 liters were taken from the distributor in Semarang City, which were heated with sunlight at temperatures of 28 and 40oC. The sample water was then filtered using a PTFE hydrophilic membrane filter with 0.22 µm pores, dried in a desiccator for 24 hours, weighed, and observed with a stereo microscope and an FTIR Spectrometer. The results showed that there were microplastics in all samples in fragments and fibers measuring 1.91-44.85µm and 2.94-130.02µm, respectively. Microplastics measuring 1–10µm have the largest Z-score, i.e. 1.953. The highest number and weight of microplastics were found in P bottles of water at a temperature f 40oC, i.e. ,97 particles/500 mL and 0.0136 gr. The microplastics in AMDK are plastics with the polyethylene terephthalate (PET) functional group, which is thought to come from their packaging

Co-Authors Amelia, Neisya Yusuf Broto, R. T.D Wisnu Broto, R.T.D. Wisnu Eka Putri, Presyta Chalida Endy Julianto, Mohammad Fahmi Arifan Firdaus, Almas Zakiy Heny Kusumayanti I Ketut Suada Isti Pudjihastuti Isti Pujihastuti Julianto, Mohamad Endy Kartikasari, Nanik Laksono Trisnantoro Mawarganis, Anggia Oky Miskiyah & Wisn Agus Supriatna Somantri Miskiyah & Wisnu Broto Agus Supriatna Somantri Muhammad Zainuri Muwaffaq, Muhammad Asror Noviana, Siti Nurlaela Nugraheni Nugraheni Nugraheni, Fransisca Sri Prasetyo, Alif Nur Fauzi Retno Hartati Rizka Amalia RTD Wisnu Broto Siswanto, Anggun Puspitarini Siswo Sumardiono Suryadi, Kresna Utami, Palupi Diah Widianingsih Widianingsih Zainal Abidin

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