Browsing LSP-Jurnal Ilmiah Dosen by Author "AMINI, Helda Wika"
Now showing items 1-10 of 10
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Alkaline Pretreatment Optimization of Tobacco Stalks for Bioethanol Production
PALUPI, Bekti; FITRIATI, Diana; VINKARISMA, Devadha Halida; FACHRI, Boy Arief; RAHMAWATI, Istiqomah; RIZKIANA, Meta Fitri; AMINI, Helda Wika (Atlantis Press, 2022)The sustainable biomass production of fuels, chemicals, and other commercial products from lignocellulosic materials has received widespread attention. One of the potential biomass resources to be developed into biofuels ... -
Biobutanol production from cocoa pod husk through a sequential green method: Depectination, delignification, enzymatic hydrolysis, and extractive fermentation
MUHARJA, Maktum; DARMAYANTI, Rizki Fitria; FACHRI, Boy Arief; PALUPI, Bekti; RAHMAWATI, Istiqomah; RIZKIANA, Meta Fitri; AMINI, Helda Wika; PUTRI, Ditta Kharisma Yolanda; SETIAWAN, Felix Arie; ASROFI, Mochamad; WIDJAJA, Arief; HALIM, Abdul (Bioresource Technology Reports, 2022-11-26)The effect of various treatments on the production of reducing sugar and biobutanol from cocoa pod husk (CPH) through depectination, delignification, enzymatic hydrolysis, and fermentation was studied to obtain the ... -
Effect of Time Variation on Chlorophyll Concentration in Cocoa Leaf Extraction using the UAE (Ultrasonic Assisted Extraction) Method
RAHMAWATI, Istiqomah; SHABRINA, Nadhilah; FACHRI, Boy Arief; AMINI, Helda Wika; PALUPI, Bekti; RIZKIANA, Meta Fitri; NURTSULUTSIYAH; PRADIPTA, Shima Nuril; AFWAL, Diza Raudhatul; REZA, Muhammad (Jurnal Kartika Kimia, 2022-11-24)Until now, Cocoa (Theobroma cacao L.) plantation is a sector that has been continuously cultivated. Cocoa leaves contain chlorophyll, which is an important pigment in photosynthesis as sunlight absorber. The aim of this ... -
Microwave-Assisted Hydrolysis Batang Tembakau untuk Produksi Gula Pereduksi sebagai Bahan Baku Bioetanol
PALUPI, Bekti; AJI, Bimo Bayu; PRASIEFA, Mizanurafi’ Ghifarhadi; PUTRI, Ditta Kharisma Yolanda; RAHMAWATI, Istiqomah; FACHRI, Boy Arief; RIZKIANA, Meta Fitri; AMINI, Helda Wika (Jurnal Teknologi, 2023-05)Indonesia merupakan salah satu negara yang memproduksi tembakau dalam skala besar, namun demikian hal ini menimbulkan masalah berupa limbah batang tembakau sekitar 2.000.000 ton tiap tahunnya dan belum dimanfaatkan. Batang ... -
Molecular Modelling of Antioxidant Agent by QSAR Study of Caffeic Acid Derivatives
RAHMAWATI, Istiqomah; AMINI, Helda Wika; DARMAYANTI, Rizki Fitria (IOP Publishing, 2020-05-26)Molecular modeling using Quantitative Structure and Activity Relationship (QSAR) has been performed on caffeic acid derivatives which is previously studied as an effective antioxidant agent. This research focuses on a ... -
Optimization of Microwave-Assisted Alkali Pretreatment for Enhancement of Delignification Process of Cocoa Pod Husk
MUHARJA, Maktum; DARMAYANTI, Rizki Fitria; PALUPI, Bekti; RAHMAWATI, Istiqomah; FACHRI, Boy Arief; SETIAWAN, Felix Arie; AMINI, Helda Wika; RIZKIANA, Meta Fitri; RAHMAWATI, Atiqa; SUSANTI, Ari; PUTRI, Ditta Kharisma Yolanda (Available online at BCREC, 2021-03-01)In this study, the optimization of microwave-assisted alkaline (MAA) pretreatment is performed to attain the optimal operating parameters for the delignification of cocoa pod husk (CPH). The MAA performance was examined ... -
Pemberdayaan Perempuan Petani Desa Tanah Wulan Melalui Pelatihan Peluang Ekspor Kopi
AMINI, Helda Wika; DARMAYANTI, Rizki Fitria; SAVITRI, Dyah Ayu (2022-04-02)Desa Tanah Wulan merupakan salah satu pemasok kopi utama di Bondowoso. Desa ini memiliki potensi sumber daya manusia yang besar dengan mata pencaharian utama sebagai petani. Sebagian besar hasil produksi kopi penduduk ... -
Pemberdayaan Perempuan Petani Desa Tanah Wulan Melalui Pelatihan Peluang Ekspor Kopi
AMINI, Helda Wika; DARMAYANTI, Rizki Fitria; SAVITRI, Dyah Ayu (2022-06-01)Desa Tanah Wulan merupakan salah satu pemasok kopi utama di Bondowoso. Desa ini memiliki potensi sumber daya manusia yang besar dengan mata pencaharian utama sebagai petani. Sebagian besar hasil produksi kopi penduduk ... -
Penerapan Response Surface Methodology dalam Optimasi Kondisi Proses Ekstraksi Antosianin pada Limbah Kulit Kakao dengan Metode Maserasi Menggunakan Pelarut Etanol
RAHMAWATI, Istiqomah; FACHRI, Boy Arief; NURTSULUTSIYAH; MANURUNG, Yakub Hendrikson; REZA, Muhammad; PALUPI, Bekti; RIZKIANA, Meta Fitri; AMINI, Helda Wika (JC-T (Journal Cis-Trans):Jurnal Kimia dan Terapannya, 2022-07-30)Antosianin dengan konsentrasi tinggi terdapat dalam kulit kakao. Tujuan dari penelitian ini adalah optimasi proses ekstraksi antosianin limbah kulit kakao dengan metode maserasi sehingga diperoleh ukuran partikel, rasio ... -
Ultrasound-Assisted Extraction of Fucoxanthin from Sargassum Sp: Effect of Extraction Variables to Antioxidant Activity
FACHRI, Boy Arief; RAHMAWATI, Istiqomah; RIZKIANA, Meta Fitri; PALUPI, Bekti; AMINI, Helda Wika (Fakultas Teknik Universitas Jember, 2022-10-21)Sargassum sp is a brown algae group that contains fucoxanthin with a molecular structure employing an allenic bond, an epoxy molecule, and a carbonyl group. This structure provides antioxidant activity to fucoxanthin. ...