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Titik Mahargiani
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Chemical Engineering, Chemistry & Bioengineering

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Modification of Natural Carbolic Acid from Arpus wit Lemongrass Essential oil as a Disinfectant wibiana wulan nandari; Faizah Hadi; Mitha Puspitasari; Susanti Rina Nugraheni; Titik Mahargiani
Eksergi Vol 19, No 2 (2022)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v0i0.6036

Abstract

Carbolic acid is a cleaning fluid or disinfectant that can be used to clean various kinds of surfaces, especially floors. Carbolic acid is used to prevent germs and viruses from growing so as to prevent disease and its spread. Most housewives often use chemical-based floor cleaners that are immediate or more practical. Long-term and too frequent use can be harmful to the body and the environment. Therefore, one solution to minimize this is to use natural ingredients that are already available and developed in Lubuklinggau City, such as lemongrass to be used as carbolic acid. The preparation begins by dissolving the arpus into the NaOH solution until it dissolves, then adding a mixture of pine oil, teepol and propylene glycol until everything is homogeneously mixed. Carbol is ready to use. The resulting product is carbolic floor disinfectant. Modified natural carbolic acid from arpus and lemongrass can be used as a disinfectant because based on the results of research that has been done it can kill E-coli bacteria and has a fairly high effectiveness with an inhibition zone of 19.2 mm.
Pengaruh Katalisator Asam pada Proses Pembuatan Gliserol dari Minyak Kelapa Sawit dengan Metanol Titik Mahargiani; Purwo Subagyo
Eksergi Vol 9, No 1 (2009): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v9i1.7584

Abstract

Pengaruh Katalisator Asam pada Proses Pembuatan Gliserol dari Minyak Kelapa Sawit dengan Metanol
PEMBUATAN MINYAK KELAPA DARI SANTAN DENGAN CARA ELEKTROKIMIA Titik Mahargiani; I Ketut Subawa
Eksergi Vol 10, No 1 (2010): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v10i1.7617

Abstract

Coconut palm is a very usefitl plant. Almost every parts of the tree can be used by people. The most important part is its fruit. From coconut fruit we can get its oil as oil-water emulsion with protein emulsion fier. Coconut oil is the most value part of coconút fruit. Oil content of coconut fruit is 34,7 %. In order to extract its oil front the fruit, we can use electrochemical way. First the fruit make into coconut milk and then coconut milkput inlo electrochemical tool. Electrochemical is a process in which colloid particles are moved under influence of electric current, When a pair of electrodes are given electric current, the protein which has function as a emulsifìer will be destroyed and it causes the separaction oil from wøter. Good relativity condition is reached in : electrochemical time 60 minules, electric current 4 ampere, cathode width 40 cm2 and the coconut oil result is 38.5 ml, the presentage oil result I I % equivalent to 0,01103 mgrek / granr oil free futty acid oil
PEMANFAATAN LIMBAH IKAN MENJADI TEPUNG IKAN SEBAGAI SUMBER PROTEIN Titik Mahargiani
Eksergi Vol 10, No 1 (2010): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v10i1.7613

Abstract

Limbah ikan laut ( kepala, ekor ) telah diketahui mengandung protein dengan kadar yang relatif tinggi. Untuk memanfaatkan protein yang terkandung dalam limbah ikan, maka dapat diolah menjadi tepung ikan. Tepung ikan sebagai sumber protein hewani sangat baik jika dijadikan produk olahan makanan untuk menunjang gizi yang dibutuhkan manusia. Limbah ikan diolah menjadi tepung ikan dengan cara dilarutkan memakai NaOH,kemudian diendapkan memakai HCI pada pH tertentu. Selain dihasilkan tepung ikan yang berprotein tinggi, juga tahan dalam penyimpanan karena selama proses kandungan air dan lemak ikut berkurang sampai kandungan airnya berkurang dari 10%. Proses hidrolisis memakai NaOH dilakukan pada kondisi suhu 60oC, waktu 2 jarm, pH = 3; dengan jumlah limbah ikan : 20 gram dan NaOH 0,5 N sebanyak 200 ml, akan diperoleh tepung ikan dengan kadar protein sekitar 38,82 %.
Co-Authors Faizah Hadi I Ketut Subawa Mitha Puspitasari Purwo Subagyo Susanti Rina Nugraheni Wibiana Wulan Nandari