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All Journal GEMA TEKNOLOGI METANA Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Waste Technology ASIAN TEFL
Wahyuningsih Wahyuningsih
Chemical Engineering, Vocational School, Diponegoro University, Jl. Prof. Soedarto, Semarang 50275, Indonesia
Computer Science & IT Education Engineering Languange, Linguistic, Communication & Media Other

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Journal : Waste Technology

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Utilization of Rambutan (Naphelium lappaceum L) Peel’s Waste is Becoming More Useful As a Natural Dye of Fabrics Heny Kusumayanti; Vita Paramita; Rizka Amalia; Wahyuningsih Wahyuningsih
Waste Technology Vol 8, No 1 (2020)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (966.637 KB) | DOI: 10.14710/8.1.25-28

Abstract

The demand to find an alternatives source of fabric dyes is increasing nowadays, specifically for natural dye. Applying natural dye in fabric, giving important effect of more environmentally friendly than synthetic dye. One of the natural colors that can be used is Naphelium lappaceum L peel’s waste. The method used is dyeing a cloth with extract of Naphelium  lappaceum  L peels. Variables applied are extract concentration, type of fixation and concentration of fixation. The results of dyeing cotton fabric using Naphelium lappaceum L peel extract show that the use of alum solution as fixation materials provides brown light color, yellowish brown for lime, and blackish grey for ferro sulphate. The different extract concentration resulted significant effect on the colour radiance on fabric.
THE STUDY ON THE EFFECT OF PROCESS VARIABLES TOWARDS BIOADSORBENT PERFORMANCE OF MODIFIED PALM BUNCH FOR THE REDUCTION OF 3-MCPD ON THE PALM OIL Wahyuningsih Wahyuningsih; Mohamad Endy Yulianto; Rizka Amalia; Eflita Yohana
Waste Technology Vol 5, No 2 (2017)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/5.2.%p

Abstract

Crude palm oil was consumed as a healthy food oil, it contains a 3-monochloro-propane-1,2-diol (3-MCPD) ester in the range of 0.04-0.05 ppm. The 3-MCPD compound is one of the contaminants belonging to the chloropropanol group that is genotoxin carcinogen. The 3-MCPD ester content specification in palm oil is still a polemic, but some EU countries already use it as a barrier of palm oil trade in the European region. It is therefore necessary to develop an integrated palm oil refining through adsorption with a modified palm empty fruit bunch bioadsorbent to reduce 3-MCPD ester (<0.02 ppm / Codex Standard).
Co-Authors Deli Nirmala Dina Elvia Rani Edy Supriyo Eflita Yohana Fahmi Arifan Heny Kusumayanti Isti Pudjihastuti Maranatha Sembiring Margaretha T S Margaretha Tuti Susanti Mohamad Endy Y Yulianto Oktavian Dita Ratnasari Rizka Amalia Vita Paramita