cover
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota semarang,
Jawa tengah
INDONESIA
International Journal of Science and Engineering (IJSE)
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
The scope of journal covers all area in the application on chemical, physical, mathematical, biological, agricultural, corrossion, and computer science to solve the engineering problems.
Arjuna Subject : -
Articles 5 Documents
Search results for , issue " ARTICLE IN PRESS" : 5 Documents clear
INFORMAL AND FORMAL SECTORS PARTNERSHIP IN URBAN WASTE MANAGEMENT (Case Study: Non-Organic Waste Management in Semarang) Indrosaptono, Djoko; Buchori, Imam; Alie Syahbana, Joesron
International Journal of Science and Engineering ARTICLE IN PRESS
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12777/ijse.0.0.

Abstract

The urban waste management is still crucial issues in most regions in Indonesia. Urban waste is considered as a cultural issue because of its impact on various life factors , especially in big cities such as Jakarta, Semarang, Surabaya, Bandung, Palembang and Medan. Currently, the average productivity of the urban waste is 0.5 kg / capita / day. If this is multiplied by number of people in some cities in Java and Bali, the total waste will reach about 100,000 tons / day. This number will still increase by increasing population growth. Therefore, the urban waste management is very important for cities in Indonesia, alhough currently not many cities applied the urban waste management system. Urban waste management in Indonesia is not merely caused by formal sector, but it is also supported by informal sector in reducing daily production waste up to 30%. The informal sector management is mainly conducted by sorting the waste to recycleable or not. The recycleable waste is then sold back to the mills to be converted to other valuable products. This reserach was aimed to evaluate the partnership between formal and informal sector in reduction of waste production in Semarang city through urban waste management system. The research about informal sector was conducted by communal interaction and qualitative analysis focusing at Semarang City especially at Old Town area. The research has provided substantive knowledge of informal sector partnerships and formal sector in urban waste management with case inorganic waste management in the city of Semarang through 3R (recycle, reuse and reduce) knwoledge management. Basic knowledge of the structure / surface is characterized by empirical knowledge which was easily caught by the direct perspective of human. Middle knowledge could be adjusted to different loci
The Nutrient Digestibility of Locally Sheep Fed with Amofer Palm Oil Byproduct-Based Complete Feed Template, Template
International Journal of Science and Engineering ARTICLE IN PRESS
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.576 KB) | DOI: 10.12777/ijse.0.0.

Abstract

Utilization of palm oil by-product such as palm fronds, leaves, empty fruit bunches (EFB), fiber fruit juice (FFJ), palm kernel cake (PKC), and palm oil sludge (POS) as the source of energy and protein for ruminants, especially sheep is an efficient effort to make a new opportunities in term of economical and beneficial product that will reduce environmental pollution. The objectives of this research were to analyze the effect of palm oil’s byproduct-based complete feed on sheep’s nutrient digestibility. Sixteen male sheeps of nine month old with average body weight 14.69+0.82 kg were used. The complete feed was formulated by ammoniated-fermented technology from palm fronds and leaves, EFB and FFJ, also Centrosema sp., PKC, POS, ground corn, rice bran, cassava, molasses, urea, mineral mix and salt. The complete feed with different levels of crude protein (CP) and TDN were used in this research which consisted of T1=10,63% CP; 63.46% TDN; T2=12.27% CP; 62.38% TDN; T3=13.70% CP; 64.11% TDN; and T4=15.90% CP; 61.28% TDN. The study used a completely randomized design (CRD) which consisted of four treatments and four replications. Data was analyzed using ANOVA with significance level at 95% and followed by Duncan Multiple Range Test. The experimental results showed that the protein level affected the feed digestibility. The highest digestibility of dry matter, organic matter and crude protein were 65.79%, 70.30%, and 84.34% respectively, resulting in 14% protein level (T3) were significantly different with treatment at protein level 10% (T1), 12% (T2) and 16% (T4) at p<0.05. It can be concluded that by-product of palm oil plantation and mill had good nutritional value. Therefore, this feedstuff can be used to formulate complete feed for sheep and it successfully increased the nutrient digestibility.
DRYING KINETICS MODELLING OF TARAP (ARTOCARPUS ODORATISSIMUS) Tham, Heng Jin; Lee, Jau Shya
International Journal of Science and Engineering ARTICLE IN PRESS
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12777/ijse.0.0.

Abstract

The effects of temperatures, 50˚C, 60˚C and 70˚C on the drying behaviour of tarap slices were experimentally investigated. High drying temperature resulted in shorter drying time and higher drying rate. Results show that the drying of tarap slices occurred at falling rate period. The effective moisture diffusivity increases from 1.216 to 2.432 × 10-11 m2/s with the increase in drying temperature. The activation energy of tarap is found to be 32 kJ/mol and the constant diffusivity is 1.969 × 10-6 m2/s. As for the modelling of drying kinetics, three statistical parameters namely coefficient of determination, reduced chi-square and root means square error were determined, and Midilli-Kucuk model was found to be the most suitable for describing the drying curves of tarap slices.
REDUCING THE PRODUCTION TIME OF INDONESIAN SWEETENED SOY SAUCE WITH FERMENTATION MODIFICATION Suryodinoto, Timothy Henri
International Journal of Science and Engineering ARTICLE IN PRESS
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12777/ijse.0.0.

Abstract

Indonesian sweet soy sauce commonly produced using two states of fermentation, the solid-state koji fermentation followed by liquid state of moromi fermentation.  Moromi fermentation may take up to 2 months in common soy sauce production. This research explored alternative fermentation techniques to shorten the production time, and thus reducing production cost, without sacrificing the safety aspect and flavor quality of the sweetened soy sauce. Several modification in the fermentation process was applied and the soy sauce produced. Total plate count and coliform enumeration showed that the soy sauce without moromi fermentation did not meet the national standard of total microbial number. The selected soysauce was then further analyzed for its sensorial and nutritional value. Free choice profiling (FCP) resulted that there is no significance different between each modificated samples.  Proximate and amino acid content were also conducted to characterize the nutritional value. The proximate analysis showed  that the selected soy sauce has met the Indonesian National Standard (SNI) and amino acid content showed that the control soy sauce has more value than other sample.  It can be summed up that modification on koji fermentation was not necessary, meanwhile moromi fermentation could be shortened further, due to safety aspect.
Profile Triglycerides Japanese Quail (Coturnix coturnix japonica) After Giving Turmeric (Curcuma longa) Powder putra, sukarman hadi jaya
International Journal of Science and Engineering ARTICLE IN PRESS
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (40.123 KB) | DOI: 10.12777/ijse.0.0.

Abstract

The purpose of this study was to determine the triglyceride profile of Japanese quail (Coturnix coturnix japonica) after being given the parameters of turmeric (Curcuma longa) powder; feed intake, profiles of liver triglycerides, profiles of serum triglycerides and profiles of meat triglycerides. This study uses an experimental method with A Completely Randomized Design Pattern. Test animals used were 45 female Japanese quails were divided into 3 groups, namely; P0: quail were not given turmeric powder, P1: quail were given turmeric powder a dose of 54 mg/quail/day, P3: quail were given turmeric powder a dose of 108 mg/quail/day. Each group with 5 replications. Each repeat consists of 3 Japanese quails. Provision of treatment every day for 30 days starting from the age of 14 days. Data were analyzed using analysis of variance (ANOVA) followed by Duncans test with 95% confidence interval (α = 0.05 level). Analysis of the data used is software Minitab software 16. Results showed that the levels of turmeric powder are given in Japanese quail significant (P˂0.05) on liver triglyceride levels, serum and Japanese quail meat but had no significant effect (P˃0.05) on consumption feed. The results showed that the optimal dose of turmeric powder to lower triglyceride levels of Japanese quail is 108 mg/quail/day as evidenced by the highest decrease in liver triglyceride profiles, profiles of serum triglycerides and triglyceride profiles of Japanese quail meat compared with other treatments.

Page 1 of 1 | Total Record : 5