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All Journal Biosaintifika: Journal of Biology & Biology Education Borneo Engineering : Jurnal Teknik Sipil
Erwin Hidayat, Erwin
Department of Biology, FMIPA, Semarang State University, Indonesia
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture

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Analysis of Proximate and Protein Profile of Kefir from Fermented Goat and Cow Milk Hidayat, Erwin; Kinayungan W, Irna; Irhas, Muhammad; Sidiq, Fathurrahman
Biosaintifika: Journal of Biology & Biology Education Vol 7, No 2 (2015): September 2015
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v7i2.3950

Abstract

This research aims to analyze the characteristics of proximate and protein profile in kefir from fermented goat milk and cow milk with different concentration of kefir grains. The research design was true experimental with Completely Randomized Design (CRD) of 3 repetitions. The research procedures consisted of kefir production, proximate analysis and protein profile characterization. Proximate assay result was analyzed by using LSD, whereas the protein profile was analyzed by descriptive qualitative method. Based on the analysis of kefir proximate levels, the kefir grain (5%) showed the highest proximate level of both kefirs from goat milk and cow milk. The analysis of protein profile of cow milk kefir showed 75 kDa of protein ribbon, while the goat milk kefir showed 48 kDa, 60 kDa and 75 kDa. Therefore it can be concluded that the proximate level of goat and cow milk kefir with different concentration of kefir grains showed significant differences in the nutrition content as well as its protein profiles.Tujuan dari penelitian ini adalah menganalisis karakteristik proksimat dan profil protein pada kefir hasil fermentasi susu kambing dan susu sapi dengan konsentrasi biji kefir yang berbeda-beda. Penelitian ini adalah eksperimen murni, dengan Rancangan Acak Lengkap (RAL) 3 kali ulangan. Prosedur penelitian meliputi pembuatan kefir, analisis proksimat dan profil protein. Data hasil proksimat dianalisi uji BNT, sedangkan profil protein dianalisis deskriptif kualitatif. Berdasarkan analisis kadar proksimat kefir, kefir grains 5% menunjukan kadar proksimat paling tinggi baik pada kefir susu kambing dan susu sapi. Sedangkan analisis profil protein kefir susu sapi menunjukan pita protein 75 kDa, pada kefir susu kambing yaitu 48 kDa, 60 kDa dan 75 kDa. Simpulan dari penelitian ini bahwa kadar proksimat kefir susu kambing dan susu sapi dengan konsentrasi kefir grains yang berbeda menunjukan perbedaan kandungan yang berbeda secara signifikan dengan konsentrasi kefir grains yang paling optimal yaitu 5%. Sedangkan profil protein kefir susu sapi ditemukan pita protein yaitu 75 kDa, dan kefir susu kambing yaitu 48 kDa, 60 kDa dan 75 kDa.
Analisis Karakteristik Penggunaan Moda Akses Bandara Internasional Yogyakarta El Hafizah, Nafilah; Hidayat, Erwin
Borneo Engineering : Jurnal Teknik Sipil 2019: Volume 3, Nomor 1, Juni 2019
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (558.494 KB)

Abstract

The new Yogyakarta International Airport began operations with an airport area of 645.63 hectares with a capacity of 14 million passengers a year. Access to the Yogyakarta international airport is distributed to 4 routes to the airport at Wates national road, Karangnongko road, the Southern Cross Road, Daendels road which is using the railroad mode. This study uses revealed preference analysis which is the approach by conveying a fact choice statement to be given an assessment by the respondent. The sample collection is assumed by the peak passenger of the Adisucipto airport, because the Yogyakarta International Airport is recently opened. It is expected to be able to represent demand predictions at the Yogyakarta International airport in the future. The results of the questionnaire were then processed by using statistical analysis to determine the factors that influence the selection of transportation modes to and from the airport. In research, the factors that influence mode choice are travel costs, travel time, travel distance, and generalized costs. The results illustrate that prospective air transport users are more dominant in choosing travel cost attributes compared to other attributes that influence. With the coefficient of determination is 0.528 and the results of data analysis for the selection of mode of transportation using private vehicles is 57% and public transportation is 43%..
Co-Authors El Hafizah, Nafilah Fathurrahman Sidiq, Fathurrahman Irna Kinayungan W, Irna Muhammad Irhas, Muhammad