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All Journal International Journal of Advances in Applied Sciences Reaktor SPEKTRUM INDUSTRI CHEMICA Jurnal Teknik Kimia Eksergi: Chemical Engineering Journal Elkawnie Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Jurnal Biologi Tropis Agroindustrial Technology Journal Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Indonesia Berdaya JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Current Research on Biosciences and Biotechnology Indonesian Journal of Chemical Engineering
Endah Sulistiawati
Universitas Ahmad Dahlan
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Drying kinetics of modification cassava-seaweed noodles using an oven Budiarti, Gita Indah; Sulistiawati, Endah; Juwitaningtyas, Titisari; Shitophyta, Lukhi Mulia; Purba, Irene Enjeli; Setiyani, Seila
International Journal of Advances in Applied Sciences Vol 12, No 4: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v12.i4.pp309-316

Abstract

Consumption of noodles in the world is always increasing. Noodles made from wheat flour are unhealthy because they cause diabetes, so alternative noodles are needed, such as modified cassava flour and seaweed. Modification cassava is used because it does not contain gluten and seaweed has nutritional value to make healthy, low-calorie noodles. The purpose of this study was to determine the temperature and time of the drying parameters of seaweed noodles. The drying method uses an oven with variable temperature (60, 70, 80, and 90 ) and drying time (2, 4, 6, 8, and 10 hours). The results of the study obtained optimal water content at 60  with 6 hours of 11.75%. The drying kinetics evaluated by logarithmic equation, optimal drying constant value at 80  of 0.67 h-1 with R2 0.9391. Effective moisture diffusivity (Deff) maximum evaluated by second Fick law obtained 9.35×107 m2/sec at temperature 90  with R2=0.9227. The proximate value of ash content is 12.11%, protein is 9.46%, lipid is 0.10%, and carbohydrates is 65.08%.
Double step method in lipid extraction from biomass Aurantiochytrium sp powder Sulistiawati, Endah; Suhendra, Suhendra; Setyawan, Martomo; Mahsunah, Anis Herliyati
International Journal of Advances in Applied Sciences Vol 12, No 4: December 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v12.i4.pp376-383

Abstract

Aurantiochytrium sp is a marine microalgae that is rich in lipids. Extraction of lipids from microalgae requires effort to select a suitable solvent and extraction method. This research used a double-step extraction method to study a mixture of n-hexane and methanol as a solvent. The variables studied were stirring time, the n-hexane to methanol (H/M) mixture ratio, and the solvent-to-biomass ratio (S/B). This research concluded that an optimum stirring time was 30 min, and a mixture of n-hexane and methanol solvents with a volume ratio of 1:1 is optimum. The optimum solvent-to-biomass ratio was S/B=20 mL/g dry microalgae. Under these conditions, the yield of oil was 83.88%. Double-step extraction can increase the yield by 10-40%.
Pembuatan Serbuk Fikobiliprotein dari Spirulina platensis melalui Proses Freezing-Thawing dan Freeze-Drying Mazareta, Selva; Sulistiawati, Endah; Evitasari, Rachma Tia; Setyawan, Martomo; Hakika, Dhias Cahya
Eksergi Vol 21 No 3 (2024)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v21i3.12453

Abstract

Mikroalga golongan Cyanophyta seperti Spirulina Platensis (SP) merupakan salah satu sumber makanan fungsional yang bergizi. SP mengandung senyawa fikobiliprotein (PBP) yang merupakan komponen terbesar dari protein dan berfungsi sebagai antioksidan dan antikanker. Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan solven-biomassa (S/B), waktu pengeringan beku, dan luas permukaan wadah sampel pada pengeringan beku terhadap serbuk PBP yang dihasilkan. Eksperimen diawali dengan proses perendaman SP kering (1,5 dan 3 g) selama 1 jam, pembekuan selama 24 jam, thawing, penyaringan vakum (30-90 menit) dan pengeringan beku (freeze-drying) pada filtrat yang diperoleh. Analisis konsentrasi PBP dalam filtrat dilakukan dengan mengukur absorbansinya menggunakan UV-Vis Spektrofotometer diuji pada panjang gelombang 562, 615, dan 652 nm.  Kadar air pada serbuk PBP setelah dilakukan proses freeze-drying diukur secara gravimeteri. Variasi yang dilakukan meliputi perbandingan S/B (6,67-133,33) mL air suling/g SP kering. Variasi waktu freeze drying selama 24 dan 32 jam. Waktu optimum untuk penyaringan vakum 30,55 menit dan menghasilkan konsentrasi PBP tertinggi (7,639 g/L). Nilai S/B optimum didapatkan  sebesar 20 mL/g dengan rendemen 112,32 mg/g (SP kering). Luas permukaan wadah sampel pada pengeringan beku yang terbaik adalah 427,5 cm2 dan banyaknya air yang teruapkan sebesar 99,71% dari berat filtrat
Co-Authors Acnes Meyta Puspa Adi Permadi, Adi Agus Aktawan Agus Aktawan, Agus Amelia, Shinta Andinni Putri Winata APS, Yunizar Rizka Arum Sari Arya Aji Saka Ayu Wulandari Budiarti, Gita Indah Chaniago Chaniago Chaniago, Chaniago Delvi Aristianingsih Dessy Norma Yunita Dhias Cahya Hakika Erna Astuti Evitasari, Rachma Tia Firdaus, Stradivary Gita Indah Budiarti Harkris Alfian Makasar Hidayati, Rafiqah Ika Dyah Kumalasari Imam Santosa Imam Santosa Juwitaningtyas, Titisari Lukhi Mulia Shitophyta Mahsunah, Anis Herliyati Martomo Setyawan Martomo Setyawan Mazareta, Selva Mitha Ulli Rahmatillah Muhammad Darmawan Nurani Sofiana Purba, Irene Enjeli Qaulina Tsabit Rafiqah Hidayati Rahayu, Aster Rahmadewi, Yunda Maymana Rahmadewi, Yunda Maymanah Ramadhan, M. Kaisar Sutomo Riantika Aulia Putri Saka, Arya Aji Sarah Fazlia Sari, Arum Septiani, Nona Septianindi, Windi Setiyani, Seila Sinaga, Alexander Maruli Tua Siti Mutmaina Siti Salamah Siti Salamah Suhendra Suhendra Suhendra Suhendra Tegar Wahyu Pamungkas Totok Eka Suharto Tresya Pantoiyo Wahidah Mahanani Rahayu Winata, Andinni Putri Yunizar Rizka APS Zainal Abidin