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PEMBERDAYAAN INDUSTRI KECIL KERIPIK PISANG DALAM UPAYA MENUJU INDUSTRI MANDIRI Pudjihastuti, Isti; Supriyo, Edy; Hartati, Retno
Gema Teknologi Vol 16, No 2 (2011): October 2010 - April 2011
Publisher : Vocational School Diponegoro University

IstiPudjihastuti, Edy Supriyo, Retno Hartati, in this paper explain that the development of micro industries, in banana chip Â micro industry to the Â member of group which is culinary enterprise Pemalang speciallized is give suitable solution to Â consument for giving natural culinary with high nutrition value independently and cheap. The development of microÂ 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. Â Key words: micro industries banana chip

YODISASI GARAM RAKYAT DENGAN SISTEM SCREW INJECTION Hartati, Retno; Supriyo, Edy; Zainuri, Muhammad
Gema Teknologi Vol 17, No 4 (2014): October 2013 - April 2014
Publisher : Vocational School Diponegoro University

Retno Hartati, Edy Supriyo, Muhammad Zainuri, in this paper explain that many salt industry is currently undergoing a inefficiencies process in the production system. Declining quality of salt from the salt ponds and lack of homogeneity in the iodine content of salt briquettes and much KIO3 wasted. So it is necessary to increase the iodine levels in salt. This activity aims to design, create and test a iodized salt machine with a capacity of 1-2 tons per hour and perform quality control on products. Community service activities have been successfully implemented by creating iodized salt machine. The process is done by means of iodized salt machine in the salt product becomes higher and meet ISO standards, in which prior to iodized salt machine the content of KIO3 is 0 ppm and become 50 ppm after using KIO3. Keywords : yodization, salt,screw, injection

PENINGKATAN KANDUNGAN P2O5 PADA PUPUK POSPAT ALAM DENGAN AKTIVASI YEAST (SACCAROMYCES CEREVICEAE) Supriyo, Edy
Gema Teknologi Vol 16, No 1 (2010): April 2010 - October 2010
Publisher : Vocational School Diponegoro University

Edy Supriyo, Mountainous area of Kendeng is known rich with their natural resources, one of which is phosphate. Phosphate element in form of tricalsium phosphate is not dissolved in water therefore it needs to be activated become monocalsium phosphate which is able to be dissolved in the water and can be used for plant to strengthen their root. As activator in hydrolisa reaction is yeast Saccaromyces cereviceae . The result of present work revealed that activation could be done using yeast after being in peak population. Optimum cultivation of yeast using 14o brix molasses give population of 1.8x.107 colonies/cm2. The optimum phosphate (P2O5) concentration increnement happened in subtrate of yeast of 120 grms that is 3,06 %. Key words : Activation, Natural Phosphate Fertilizer

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

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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

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