cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota semarang,
Jawa tengah
INDONESIA
METANA
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Computer Science & IT
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue "Vol 6, No 01 (2009): April 2009" : 8 Documents clear
KINETIC STUDY OF THE UTILISATION OF DIFFERENT SUBSTRATES TO LACTIC ACID USING Lactobacillus delbrueckii Abdullah Abdullah; Hanapi bin Mat; Widayat Widayat
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5667.593 KB) | DOI: 10.14710/metana.v6i01.1830

Abstract

Abstract   Lactic acid fermentation includes several reactions in association with the microorganism growth.  A kinetic study was performed of the utilisation of multiple substrates to lactic acid using lactobacillus delbrueckii. Batch fermentation was performed to study effect of different substrates such as glucose, fructose and sucrose. The objective of this research is to study kinetics grow microbial. A anaerobic fermentation were studied in 3 litres stirred fermentor ( Biostat B Model) with working volume of 1 liter, temperature : 40 oC, pH = 6.0, inoculums size : 5% , sugar concentration =  20 g/1. During the first hours of fermentation, glucose and fructose accumulated in the medium and the rate of  hydrolysis of sucrose to glucose and fructose was faster than conversion of these substrate. The maximum concentration of glucose and fructose was 5.82 and 5. 14 g/l respectively. The sucrose, glucose, and fructose consumption completely utilized at 56, 68, and 104 hours, respectively. Kinetic parameter for maximum .specific growth rate in glucose, fructose and sucrose is 0.103, 0.0448, and 0.0398 (h-1), respectively. The saturation constant is 2.13, 2.67, and 3.32 g/1.   Key Words: Kinetic Study, Sugars, Lactic Acid, Maximum Specific Growth Rate and Saturation Constant
TEKNOLOGI PENGAWETAN BUAH TOMAT DENGAN METODE FREEZE DRYING Pujihastuti, Isti
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5000.774 KB) | DOI: 10.14710/metana.v6i01.1948

Abstract

  Abstract The laboratory equipments are important in elaboration of technologies in freeze drying, for research of the product quality, amelioration, moreover determination of transport properties. Our department has a laboratory vacuum freeze drying equipment. We can register all the data during the procedure. It's important to analyze this freeze drying procedure, because this is elementary for system designing. we have constructed the necessary measuring instruments, their arrangement. The automatitation of this process isn't a simple problem. The principal measured characteristics are mass of dried product, temperature of dried product layer, temperature of the heater, vacuum, freezing temperature. We can measure the dried product's weight by a load cell, with the necessary accuracy.   Kata kunci : freeze drying, tomato  
MESIN PENGIRIS KENTANG SISTEM SENTRIFUGAL Suharto, Suharto
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5516.93 KB) | DOI: 10.14710/metana.v6i01.1831

Abstract

Abstrak Pengolahan kentang menjadi keripik merupakan tahapan pascapanen yang ditempuh untuk pengembangan penganekaragaman produk dan peningkatan nilai tambah Metode yang digunakan dimulai dengan proses mengiris kentang segar menjadi irisan tipis dengan ketebalan 2 mm. Hasil merancang dan membuat mesin ini diperoleh mesin pengiris kentang sistem silinder pemutar dengan kapasitas 350 kg yang dapat diproses selama 1 jam, dan dimensi mesin dengan panjang 600 mm, lebar 400 mm, dan tinggi l000 mm dengan penggerak motor listrik 1 HP. Pengaturan pisau sebelum menggunakan mesin untuk mendapatkan ketebalan hasil irisan yang diinginkan. Pemakaian material sebaiknya dipilih stainles steel (baja tahan karat) untuk memberikan higienes bagi makanan   Kata kunci : Mesin, pengiris, kentang sentrifugal
PENCEGAHAN BANJIR, DAN PENURUNAN MUKA AIR TANAH DENGAN SUMUR RESAPAN Setiabudi, Bambang
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4396.6 KB) | DOI: 10.14710/metana.v6i01.1796

Abstract

Abstract   Bambang Setiabudi, in paper floods and to discharge of ground water many created in much housing district. That case to appoint often to created every year at rainy season and dry season Expedient to doing is by absorbtion well. Absorbtion ,well is water conservation technology to resemble well with to be certain depth for to catch of water.
PENGANTAR REAKSI Kusumayanti, Heny
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (741.873 KB) | DOI: 10.14710/metana.v6i01.1949

Abstract

PENGANTAR REDAKSI
PERKUATAN ( STRENGTHENING) STRUKTUR BETON DENGAN FIBER REINFORCED POLYMER (FRP) Christiawan, Ignatius
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6144.026 KB) | DOI: 10.14710/metana.v6i01.1797

Abstract

Abstract   In effort fulfill requirement the well building infrastructure, safety of building user such as building avalanche damage as result of earthquake is principal priority. Load addition on building exceeds the planning load as result of the involuntary building function change always generating the building avalanche damage. It was needed evaluate to the strength of building structure at the existing condition and strengthening if it was needed before the structure given the new load. One of the strength procedure is external reinforcement method especially give Fiber Reinforced Polymer (FRP) that it was adhered on the concrete component surface which reinforced by epoxy glue. From several former researches, base analysis and bent planning along with example of the practice calculation of beam strength by FRP can be concluded that the use of FRP in combination with the others strength method is easy and practice for conducted and also capable to increase the strength of concrete beam bent.   Kcywords: load addition, strength, safety
PENGAWETAN IKAN BANDENG (CHANOS-CHANOS FORSK) TINGGI LISIN DENGAN PENGASAPAN CAIR DAN PENAMBAHAN SENYAWA ANTI MIKROBIA DAN ANTIOKSIDAN DARI DAUN SIRIH TINGGI OLEORESIN (piper bitttle Linn) DALAM BENTUK KAPSUL Wahyuningsih Wahyuningsih
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4659.442 KB) | DOI: 10.14710/metana.v6i01.1798

Abstract

Abstracl   On this reaseach have observed liquid smoke's ability to pursue microbe activity, antimicrobe and antioxidant compounds in betel oleoresin, give preservation by purse microorganism's growth on chanos-chanos forsk. Fis submerge process by liquid smoke with bettle oleoresin submerge on presmoking, give optimum result in preserve time eight weeks lysine value 26,56 mg/100 g, with TVB value 7,66 mgN/100 g and microorhanism 9,5 x 12 CFU/g. Reach on submerge with liquid smoke 4 %  concentration,  during 15 minutes, and submerge with liquid smoke 4% concentration during I0 minutes. Result above have contribution with sensoric examine of rather hard to hard texture and very like flavor   Keywords : Liquid Smoke - oleoresin sirih- Bandeng Fish
PRODUKSI SIRUP GLUKOSE DARI PATI SECARA ENZYMATIK Supriyo, Edy; Kurniawan, Dedy
METANA Vol 6, No 01 (2009): April 2009
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4062.506 KB) | DOI: 10.14710/metana.v6i01.1800

Abstract

  Abstract   In the prodacution of tapioca starch, before the starch being dried, glucose syrup could be produced wih ghigh concentrotion of maltose and glucose using enzymatic processes. Hidrolized tapioca starch using a-amylase enzyme which comes from Aspergilus niger produce concentration of syrup i.e. hanya 42,88 %, while using commercial a-amylase enzymes of NOVO (AMG 3001) the conversuion yiled was 114%.  Beside the ash content is still high make the syrup colour become cloudy, whilst glucose syrup produced with a-amylase enzymee is very clear.   Keywords : syrup glucosa, Aspergilus niger, a-amylase, tapioca starch

Page 1 of 1 | Total Record : 8

 1 

Filter by Year

2009 2012


Reset
Filter By Issues
All Issue Vol 19, No 1 (2023): Juni 2023 Vol 18, No 2 (2022): Desember 2022 Vol 18, No 1 (2022): Juni 2022 Vol 17, No 2 (2021): Desember 2021 Vol 17, No 1 (2021): Juni 2021 Vol 16, No 2 (2020): Desember 2020 Vol 16, No 1 (2020): Juni 2020 Vol 15, No 2 (2019): Desember 2019 Vol 15, No 1 (2019): Juni 2019 Vol 14, No 2 (2018): Desember 2018 Vol 14, No 1 (2018): Juni 2018 Vol 13, No 2 (2017): Desember 2017 Vol 13, No 1 (2017): Juni 2017 Vol 12, No 2 (2016): Desember 2016 Vol 12, No 1 (2016): Juni 2016 Vol 11, No 02 (2015): Desember 2015 Vol 11, No 01 (2015): Juli 2015 Vol 10, No 02 (2014): Desember 2014 Vol 10, No 01 (2014): Juli 2014 Vol 9, No 02 (2013): Desember 2013 Vol 9, No 01 (2013): Juli 2013 Vol 8, No 02 (2012): Desember 2012 Vol 8, No 01 (2012): Juli 2012 Vol 6, No 01 (2009): April 2009 Vol 7, No 01 (2011): Juli 2011 Edisi Khusus Februari 2011 Vol 6, No 02 (2010): Desember 2010 Vol 6, No 02 (2009): Desember 2009 Vol 5, No 2 (2007): Desember 2007 Vol 4, No 1 (2007): Juni 2007 Vol 3, No 2 (2006): Juli 2006 Vol 1, No 2 (2004): Desember 2004 More Issue