Article Per Year (5 Year)
p-Index From 2021 - 2026
1.376
P-Index
This Author published in this journals
All Journal Reaktor International Journal of Science and Engineering (IJSE) International Journal of Renewable Energy Development TEKNIK METANA Jurnal Ilmu Lingkungan Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Majalah Ilmiah MOMENTUM Jurnal Rekayasa Mesin Jurnal Teknologi Pangan Innovative: Journal Of Social Science Research Jurnal Profesi Insinyur Indonesia
Noer Abyor Handayani
Departemen Teknik Kimia Fakultas Teknik Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Transportation Veterinary Other

Published : 21 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : METANA

 1 
MODIFIKASI TEPUNG UBI JALAR UNGU (Ipomoea batatas L. Poir) DENGAN METODE HEAT MOISTURE TREATMENT (HMT) SEBAGAI BAHAN BAKU PEMBUATAN MI INSTAN Santosa, Herry; Handayani, Noer Abyor; Bastian, Hasbi Ashidqi; Kusuma, Ilga Mega
METANA Vol 11, No 01 (2015): Juli 2015
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (121.607 KB) | DOI: 10.14710/metana.v11i01.12580

Abstract

Abstrak Mi instan merupakan makanan yang cukup popular di Indonesia. Selain praktis dan murah, mi instan memiliki kandungan gizi yang cukup sebagai pengganti makanan pokok seperti beras. Pada umumnya,  mie instan dibuat dari bahan baku tepung gandum. Namun, tidak semua orang dapat mengonsumsi mi instan dengan bahan baku tepung gandum ini. Oleh karena itu, tepung ubi jalar merupakan alternatif sebagai bahan baku pembuatan mi instan. Tujuan dari penelitian ini adalah karakterisasi tepung ubi jalar ungu, menentukan waktu dan suhu modifikasi paling baik. Penelitian dilakukan melalui tiga tahap; 1.Tahap pembuatan tepung ubi jalar ungu; 2.Tahap karakterisasi tepung ubi jalar ungu; 3.Tahap modifikasi tepung ubi jalar ungu dengan menggunakan metode modifikasi Heat Moisture Treatment (HMT). Dari tahap karakterisasi diketahui bahwa tepung ubi jalar ungu memiliki nilai swelling power sebesar 3,1 g/g; solubility sebesar 2,8 %, yang masih berada di bawah nilai swelling power dan solubility tepung gandum, sehingga diperlukan tahap modifikasi. Waktu modifikasi dan suhu modifikasi berpengaruh positif pada sifat fungsional tepung ubi jalar ungu yaitu swelling power dan solubility. Untuk mendekati swelling power dan solubility dari tepung gandum, modifikasi lebih baik dilakukan pada suhu 60 ºC selama 5 jamKata kunci : tepung ubi jalar ungu, Heat Moisture Treatment, Mi instan, Swelling power, solubility  Abstract Instant noodle is a well-known food in Indonesia. Aside of it’s simplicity and cheap, instant noodle have enough nutrition as a substitute for main food like rice. Usually, instant noodle is made from wheat flour as material. But, not every people could use this instant noodle as their daily meal.. Therefore, purple sweet potato could be an alternative as a substitute material of instant noodle. The purposes of this study is to examine functional properties of the purple sweet potato flour, and determining best time and temperature modification. To achieve the purposes, this study is done through three stages; 1. Production stage of the purple sweet potato flour; 2.Characterization stage of the purple sweet potato flour; 3.Modification stage of the purple sweet potato flour using Heat Moisture Treatment (HMT) modification method. From the characterization stage is known that the purple sweet potato flour has swelling power 3,1 g/g; solubility 2,8 % so it is necessary to be modified. Time modification and temperature modification giving a positif effect to functional properties of the purple sweet potato flour that is swelling power and solubility. In order to closing the swelling power and solubility with wheat flour, modification is better be doing at 60 ºC for 5 hours long. Keywords: Purple Sweet Potato Flour, Heat Moisture Treatment, Instant Noodle, Swelling power, solubility  
MIKROALGA SEBAGAI SUMBER BIOMASA TERBARUKAN: TEKNIK KULTIVASI DAN PEMANENAN Ariyanti, Dessy; Handayani, Noer Abyor
METANA Vol 6, No 02 (2010): Desember 2010
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.5 KB) | DOI: 10.14710/metana.v6i2.3431

Abstract

Abstract   For millennia, aquatic environment has been a source of food, minerals, and natural products to fulfill human’s need. In order to resolved problem due to increment of population, the development of product microalgae based which is one of renewable resource absolutely needed.   There are two important processes in biotechnology of microalgae, microalgae cultivation and harvesting. Common cultivation methods used in growing microalgae are open raceway pond system and closed photobioreactor system. While harvesting methods used is flocculation, centrifugation and filtration. This paper described briefly the methods used in cultivation and harvesting of microalgae.   Keywords: microalgae, cultivation, harvesting
Penentuan Proses Pretreatment untuk Pemanfaatan Limbah Kulit Singkong sebagai Bahan Baku Bioetanol melalui Hidrolisa Enzimatis menggunakan Aspergillus spp. Ariyanti, Dessy; Purbasari, Aprilina; Kusumayanti, Heny; Handayani, Noer Abyor
METANA Vol 15, No 1 (2019): Juni 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (785.67 KB) | DOI: 10.14710/metana.v15i1.22965

Abstract

Ketergantungan terhadap bahan bakar fosil ini menjadi masalah besar yang sangat mendesak untuk segera diselesaikan. Salah satu langkah solusi yang bisa dilakukan adalah memanfatkan bioetanol lignoselulosa dari limbah kulit singkong sebagai alternatif pengganti. Permasalahan utama yang menghambat penggunaan kulit singkong sebagai bahan baku utama pembuatan bioetanol adalah belum adanya proses pretreatment dan hidrolisa yang terbukti efektif secara teknis maupun ekonomis untuk mengkonversi lignoselulosa yang terkandung dalam kulit singkong menjadi bentuk gula sederhana. Penelitian ini dilaksanakan untuk mengetahui efektifitas proses pretreatment dan hidrolisa untuk mengkonversi lignoselulosa yang terkandung dalam kulit singkong menjadi bentuk gula sederhana. Metode pretreatment asam (H2SO4) dan organosolv (Etanol + CH3COONa) terbukti dapat meningkatkan yield gula tereduksi hingga 50% dibandingkan dengan proses hidrolisa tanpa pretreatment. Yield hingga 78% dapat diperoleh pada proses pretreatment asam suhu 30oC, waktu 30 menit yang dilanjutkan dengan hidrolisa enzimatik dengan Aspergillus niger selama 48 jam. Peningkatan yield pada proses pretreatment organosolv (optimum 74% pada suhu 30oC, waktu 90 menit) masih dapat dilakukan dengan meningkatkan waktu operasi dan meningkatkan suhu operasi. Namun peningkatan suhu maupun penambahan waktu operasi berpengaruh terhadap analisa teknis dan ekonomis dari proses. Secara teknis, pretreatment organosolv lebih mudah dilakukan terutama pada proses dengan kondisi operasi atmosferik dibandingkan dengan pretreatment asam karena sifat bahan kimia yang digunakan dan penanganannya. Secara ekonomis, pretreatment asam lebih baik untuk diaplikasikan dibandingkan pretreatment organosolv, hal ini dikarenakan yield yang dihasilkan lebih tinggi pada kondisi proses atmosferik. Lignocellulose material derived from cassava peel can be utilized as raw material for bioethanol production. The utilization of this material can be part of solution in order to maintain Indonesia’s energy security which still majority covered by the fossil fuel. The main problem of lignocellulose conversion into bioethanol is their crystalline structures those make them really difficult to be converted into monomeric sugar prior fermentation to produce ethanol. The objective of this research is to find out the effectiveness of pre-treatment process prior enzymatic hydrolysis of lignocellulose contained on cassava peel. The result shows pre-treatment methods both acid (H2SO4) and organosolv (Etanol + CH3COONa) proved to be effective in order to increase the yield of total reducing sugar (TRS) until 50% after enzymatic hydrolysis compared to the sample without pre-treatment. Highest yield 78% can be achieved by applying acid pre-treatment under temperature 30oC and 30 minutes of process prior enzymatic hydrolysis by Aspergillus niger under temperature 35oC for 48 hours. Further optimization in organosolv pre-treatment can be conducted by increasing the temperature and prolong the process into certain extent. It should be noted that the above action could influence the feasibility of the organosolv pre-treatment technically and economically. From technical point of view, organosolv pre-treatment can be more feasible compared to acid pre-treatment (under atmospheric condition) as the reagents are easy to handle in terms of safety consideration. However, from economic side acid pre-treatment is more preferable as higher yield of the process and lower volume of chemical can be used in order to achieve the same amount of product. 
Co-Authors Aat Zaki Mubarok Adina, Alifia Rizki Aditya Yuna Aditya Yuna Adristy, Vania Zulfa Aji Prasetyaningrum Ananta, Reza Aprilina Purbasari Ariyanti Dessy Bakti Jos Berlian Arswendo Adietya Bunga Profegama Bunga Profegama Denis Denis Dessy Ariyanti Dessy Ariyanti Diah Susetyo Retnowati Faadhilah, Hilmi Rifaa Fadlillah Fani Fitri Lafifa H Hadiyanto Hargono Hargono Harles, Hendra Hasbi Ashidqi Bastian, Hasbi Ashidqi Heny Kusumayanti Herry Santosa Herry Santosa I Nyoman Widiasa Ilga Mega Kusuma, Ilga Mega Kristinah Haryani Kristinah Haryani Kristinah Haryani Miranti Budi Kusumawati Naniek Utami Handayani Nita Aryanti Putri, Sheila Amanda Ratnawati Ratnawati Rufaida Nur Rostika S Sumarno Sadam Arrois Sulardjaka Sulardjaka Yuliani, Sari