Resultados de búsqueda - Herti Utami

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  1. 1

    Studi Pembuatan dan Karakteristik Sifat Mekanik dan Hidrofobisitas Bioplastik dari Pati Sorgum por Yuli Darni, Herti Utami

    Publicado 2009-12-01

    This research investigated the utilization of sorghum starch and chitosan as basic material for preparation of biodegradble plastic. The optimum conditions for the formation of biodegradble plastic and the effect of starch-chitosan formulation on mechanical properties of the biodegradable plastic we...

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  2. 2

    Aplikasi Mikrofibril Selulosa Dari Batang Sorgum Sebagai Pengisi Pada Sintesis Film Bioplastik por Yuli Darni, Hilda Lestari, Lia Lismeri, Herti Utami, Edwin Azwar

    Publicado 2018-03-01

    Pada penelitian ini telah disintesis bioplastik dengan penambahan mikrokristalin selulosa dari batang sorgum  sebagai pengisi. dengan  formulasi pati sorgum-gelatin dan  pemplastis gliserol. Formulasi pati sorgum-gelatin yang digunakan yaitu 10:0 ; 9,5:0,5 ; 8,5:1,5 ; 7,5:2,5 ; 6,5:3,5 dan 5,5:4,5 (...

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  3. 3

    The Leaching of Natural Dyes from Avocado (Persea Americana Mill) Seeds Using the Ultrasonic-Assisted Extraction Method and Its Application to Cellulose Fibers por Herti Utami, Veni Tri Agustin, Luthfiah Novirianti, Yuli Darni, Donny Lesmana, Ryosuke Takagi

    Publicado 2021-11-01

    The textile industry uses synthetic dyes because they are cheaper and easier to obtain. Moreover, the color availability is guaranteed and more varied. However, these synthetic dyes have a negative impact on health and the environment. The natural dye from avocado (Persea Americana Mill) seeds can b...

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  4. 4

    Synthesis of Biofoam Based on Starch Mixture of Cassava Peel and Kepok Banana Peel with Chitosan Additive to Improve Mechanical and Physical Characteristics por Yuli Darni, Ghea Maulidaco Anandati, Eva Mayanti, Lia Lismeri, Herti Utami, Azhar Azhar

    Publicado 2023-03-01

    Biodegradable foam(biofoam) is a type of bioplastic that is used as an alternative packaging to replace styrofoam which is safe and environmentally friendly. This study aims to determine the characteristics of biofoam made from cassava peel starch (A) and banana peel starch (B), as well as the effec...

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  5. 5

    Sodium Hydroxide Treatment for Cellulose Fiber Accessibility from Corncobs under Microwave Assistive por Muhammad Hanif, Aknasasia Virginia Krisanti, Selvy Salfitri, Yuli Darni, Herti Utami, Edwin Azwar, Poernomo Gunawan

    Publicado 2021-11-01

    Corncob is abundantly available lignocellulosic biomass resources obtained from crops harvesting and found to be solid waste accumulation on a field. Less corncob is used as a solid fuel for cooking, and a more significant portion is vanished on the field by burning. Promisingly, corncob contains co...

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  6. 6

    Extraction of Natural Dyes from Cocoa Pod Husk (Theobroma cacao L.) using Ultrasound Assisted Extraction as a Natural Fabric Dye por Herti Utami, Katrina Harahap, Annisa Fitria Pista, Ara Annastasya Azizah, Arlin Marlina, Yuli Darni, Simparmin br Ginting

    Publicado 2024-12-01

    Natural dyes are one of the popular choices for textile dyes today. One part of the plant that has the potential to produce natural dyes is cocoa pod husk (Theobroma cacao L.) because it contains several secondary metabolite compounds, such as tannin which produces a brown color. The extraction meth...

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