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Pembuatan Zat Warna Alami dalam Bentuk Serbuk untuk Mendukung Industri Batik di Indonesia Paryanto; Agus Purwanto; Endang Kwartiningsih; Endang Mastuti
Jurnal Rekayasa Proses Vol 6, No 1 (2012)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Zat warna sintetis sangat praktis digunakan serta dapat menimbulkan warna yang mencolok pada produk. Namun limbah buangan zat warna sintetis dapat mencemari lingkungan. Saat ini zat warna alami mulai digunakan kembali. Untuk memudahkan pemakaian, zat warna alami berbentuk cair dikeringkan menjadi serbuk. Ekstrak zat warna alami dari biji kesumba dalam penelitian ini dikeringkan menggunakan spray dryer sehingga terbentuk serbuk. Zat warna kesumba diekstraksi dengan pelarut larutan NaOH dan Ca(OH)2. Pengeringan dilakukan dengan laju umpan rata – rata 0,13 ml/detik dengan suhu umpan 70°C dan suhu pengering 120°C. Pelarut NaOH memberikan hasil yang lebih baik dibanding pelarut Ca(OH)2. Kondisi yang relatif baik dicapai pada penggunaan pelarut NaOH 0,4 M, suhu 90C dan waktu 180 men. Serbuk yang dihasilkan 19,6 g/L larutan ekstrak. Kata Kunci : zat warna alam, serbuk, biji kesumba, pengering sembur, batik. Synthetic dyes are very practical to use and can lead to a striking color on the products. However, synthetic dye effluent may pollute the environment. For this reason, currently natural dyes have been used again for coloring. In order to ease the use of natural dyes, the liquid form of the dyes is dried into powder. In the present study, natural dyes extracted from kesumba seeds were dried using a spray dryer to form a powder. The Kesumba dye was extracted in an alkaline solutions of NaOH and Ca(OH)2. Drying was carried out with a feed having an average rate of 0.13 ml/sec at a temperature of 70°C. Meanwhile, dryer temperature was 120C. Experimental results showed that extraction using NaOH solution offered better results than that using Ca(OH)2 solution. The extraction using NaOH solution was optimum at NaOH concentration of 0.4 M, temperature of 90C and duration of 180 min. With this condition, the resulting powder was 19.6 g/L extract solution. Keywords : natural dye, powder, kesumba seed, spray dryer, batik.

Pembuatan Zat Warna Alami dalam Bentuk Serbuk untuk Mendukung Industri Batik di Indonesia Paryanto; Agus Purwanto; Endang Kwartiningsih; Endang Mastuti
Jurnal Rekayasa Proses Vol 6, No 1 (2012)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.2454

Zat warna sintetis sangat praktis digunakan serta dapat menimbulkan warna yang mencolok pada produk. Namun limbah buangan zat warna sintetis dapat mencemari lingkungan. Saat ini zat warna alami mulai digunakan kembali. Untuk memudahkan pemakaian, zat warna alami berbentuk cair dikeringkan menjadi serbuk. Ekstrak zat warna alami dari biji kesumba dalam penelitian ini dikeringkan menggunakan spray dryer sehingga terbentuk serbuk. Zat warna kesumba diekstraksi dengan pelarut larutan NaOH dan Ca(OH)2. Pengeringan dilakukan dengan laju umpan rata – rata 0,13 ml/detik dengan suhu umpan 70°C dan suhu pengering 120°C. Pelarut NaOH memberikan hasil yang lebih baik dibanding pelarut Ca(OH)2. Kondisi yang relatif baik dicapai pada penggunaan pelarut NaOH 0,4 M, suhu 90C dan waktu 180 men. Serbuk yang dihasilkan 19,6 g/L larutan ekstrak. Kata Kunci : zat warna alam, serbuk, biji kesumba, pengering sembur, batik. Synthetic dyes are very practical to use and can lead to a striking color on the products. However, synthetic dye effluent may pollute the environment. For this reason, currently natural dyes have been used again for coloring. In order to ease the use of natural dyes, the liquid form of the dyes is dried into powder. In the present study, natural dyes extracted from kesumba seeds were dried using a spray dryer to form a powder. The Kesumba dye was extracted in an alkaline solutions of NaOH and Ca(OH)2. Drying was carried out with a feed having an average rate of 0.13 ml/sec at a temperature of 70°C. Meanwhile, dryer temperature was 120C. Experimental results showed that extraction using NaOH solution offered better results than that using Ca(OH)2 solution. The extraction using NaOH solution was optimum at NaOH concentration of 0.4 M, temperature of 90C and duration of 180 min. With this condition, the resulting powder was 19.6 g/L extract solution. Keywords : natural dye, powder, kesumba seed, spray dryer, batik.

The Use of Interactive Worksheet to Teach Speaking Ansah, Andre; Athena, Tera; Mastuti, Endang
Acitya: Journal of Teaching and Education Vol. 6 No. 2 (2024): ACITYA Journal of Teaching and Education
Publisher : Universitas Muhammadiyah Kalimantan Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/ajte.v6i2.3956

The purpose of the study is to show how Interactive Worksheets can be used to deliver speaking. The interactive worksheet was made by the instructor and is accessible online to encourage students to speak more. Students get the chance to express themselves in a stress-free and enjoyable way. The study used a descriptive qualitative research design and methodology. The sources of the data are the online interactive worksheet and the responses from students to it. Data collection techniques include observation, interviewing, and documentation. The triangulation methodology is used by the researcher to evaluate the data's adequacy Techniques for analyzing data include data condensing, data displaying, conclusion, and verification. The study's findings indicate that: First, help students practice speaking aloud without pressure. Secondly, encouraging their creative learning and speaking. Third, concentrate on assisting the students in developing their speaking skills. Just have fun when they speak, that's all. The disadvantage is that students may find it challenging to understand and accurately pronounce terms used in the text. In order to look up challenging terms, students can implement lively game combinations. The researcher offers suggestions for future research, educators, and students in this study.

The Use of Interactive Worksheet to Teach Speaking Ansah, Andre; Athena, Tera; Mastuti, Endang
Acitya: Journal of Teaching and Education Vol. 6 No. 2 (2024): ACITYA Journal of Teaching and Education
Publisher : Universitas Muhammadiyah Kalimantan Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/ajte.v6i2.3956

The purpose of the study is to show how Interactive Worksheets can be used to deliver speaking. The interactive worksheet was made by the instructor and is accessible online to encourage students to speak more. Students get the chance to express themselves in a stress-free and enjoyable way. The study used a descriptive qualitative research design and methodology. The sources of the data are the online interactive worksheet and the responses from students to it. Data collection techniques include observation, interviewing, and documentation. The triangulation methodology is used by the researcher to evaluate the data's adequacy Techniques for analyzing data include data condensing, data displaying, conclusion, and verification. The study's findings indicate that: First, help students practice speaking aloud without pressure. Secondly, encouraging their creative learning and speaking. Third, concentrate on assisting the students in developing their speaking skills. Just have fun when they speak, that's all. The disadvantage is that students may find it challenging to understand and accurately pronounce terms used in the text. In order to look up challenging terms, students can implement lively game combinations. The researcher offers suggestions for future research, educators, and students in this study.

NOTARY OBLIGATIONS TO REPORT BENEFICIARIES OR BENEFICIAL OWNERSHIP (BO) IN EACH MAKING OF DEEDS Mastuti, Endang; Mispansyah, Mispansyah; Ifrani, Ifrani
NUSANTARA : Jurnal Ilmu Pengetahuan Sosial Vol 10, No 4 (2023): NUSANTARA : JURNAL ILMU PENGETAHUAN SOSIAL
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jips.v10i4.2023.1726-1736

Abstract This study aims to analyze the urgency of the notary's obligation to report the beneficial owner in each deed to the Financial Transaction Analysis Reporting Center (PPATK) and how to assess the beneficial owner.Beneficial Ownership) referred to by the Legislation. The method used isnormative with the Antinomy research type, namely conflicting norms in the authority and obligations of a notary in reporting beneficial owners(beneficial ownership). The research results areThe urgency of the notary's obligation to report the beneficial owner(beneficial ownership) in each Deed to the Notary Financial Transaction Reports and Analysis Center (PPATK) as a state official or general official appointed by the state in making Deeds that are vulnerable to being exploited by money laundering (TPPU) and terrorism financing (TPPT) perpetrators.Authority The Financial Transaction Reports and Analysis Center (PPATK) requests reports from professions that are vulnerable to being misused by money laundering (TPPU) and terrorism financing (TPPT) perpetrators. PPATK asfinancial intelligence unit Whichhave duties and functions of receiving financial transaction reports, analyzing financial reports, and forwarding the results of the analysis to other law enforcement agencies. So the obligation to report the beneficial owner(beneficial owner) by a Notary to the Financial Transaction Reports and Analysis Center (PPATK) is very important and urgent in the prevention and eradication of money laundering (TPPU) and terrorism funding (TPPT) crimes

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