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All Journal REKAYASA Jurnal Ilmiah Inovasi
Citra Kusumasari, Findi
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Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Physics Other

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Pengaruh Perbandingan Rasio Tepung Kentang dan Tepung Tapioka Serta Penambahan Bubuk Daun Kersen (Muntingia calabura) Pada Mie Basah Non Gluten Handayani, Anna Mardiana; Citra Kusumasari, Findi; Setyowati, Lisus; Nurul Satya, Malinda Capri
Rekayasa Vol 17, No 3: Desember, 2024
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v17i3.27254

Abstract

This study aims to determine the effect of the ratio of potato flour and tapioca flour and addition of kersen leaves powder on gluten-free wet noodles with a focus on proximate levels (water, ash, protein, fat, and carbohydrate content by different) and antioxidant activity (DPPH method). The research design used was a RAK with two factors. The first factor was the ratio of potato flour and tapioca flour and the secondly was the variation of kersen leaves concentration, which consist of 3 treatment levels respectively, so it’s obtained 9 samples with 2 replications. The data were processed using the ANOVA test and if there was a significant difference, then continue with the DMRT test (significance level 5%). The results showed that the effect of the ratio of potato flour and tapioca flour had an effect on increasing water content, protein content and reducing on carbohydrate content while ash content and fat content did not have a significant effect. Non-gluten wet noodles had antioxidant activity of around 36.2-52.5%. The increased of the concentration of kersen leaves powder so the antioxidant activity as well as increased. Further research is still needed to examine the potential of our functional food products such as antidiabetic and antihypercholesterol using in vivo studies. Also, the isolation of bioactive components of kersen leaves using nanotechnology to make them easier to be absorbed by the body.
Neraca Massa–Energi Konversi Limbah Kopi menjadi Pupuk Organik Cair (POC): Penilaian Gate to Gate Brilliantina, Aulia; Fatur Rohman, Hanif; Ratri Andia Sasmita, Irene; Citra Kusumasari, Findi; Hasanuddin Slamet, Ahmad Haris
Jurnal Ilmiah Inovasi Vol 25 No 3 (2025): Desember
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jii.v25i3.6549

Abstract

Limbah kopi berpotensi tinggi untuk divalorisasi menjadi pupuk organik cair (POC), namun kajian yang mengaitkan neraca massa–energi dengan mutu POC dan kepatuhan regulasi masih terbatas. Penelitian ini menyusun kerangka neraca massa–energi gate‑to‑gate untuk konversi limbah kopi menjadi POC (pencampuran–fermentasi–penyaringan), mengkuantifikasi rendemen POC, massa cake filtrasi, dan kehilangan air, serta menautkannya pada indikator kepatuhan Kepmentan 261/2019. Metode memisahkan aliran in–process–out per tahap dan menghitung penutupan massa; parameter mutu diukur/pedoman menurut praktik baku (TS; C‑organik via TOC/Walkley–Black; N total/organik via Kjeldahl; pH; mikrobiologi), sementara beban energi dievaluasi dari kerja listrik pengadukan/pompa dan panas laten penguapan. Studi kasus ilustratif menunjukkan tiga pengungkit utama: pengenceran, fraksi padatan yang lolos ke filtrat (θ), dan kadar air cake (MC_cake); ketiganya mengendalikan kompromi volume–konsentrasi (rendemen vs. TS/C‑organik). Pada operasi tanpa pemanasan, konsumsi energi didominasi pengadukan dan relatif rendah, sehingga efisiensi material lebih menentukan daripada efisiensi energi. Kerangka disertai templat perhitungan yang dapat direplikasi untuk analisis “what‑if” (setelan pengenceran/filtrasi) dan audit mutu per batch, membantu produsen kecil–menengah merancang proses yang konsisten, terdokumentasi, dan berpeluang memenuhi ambang Kepmentan 261/2019.
Co-Authors Ahmad Haris Hasanuddin Slamet Anna Mardiana Handayani Brilliantina, Aulia Fatur Rohman, Hanif Ratri Andia Sasmita, Irene Satya, Malinda Capri Nurul Setyowati, Lisus