Pratiwi, Rosi
Department of Economics Education, Universitas Sebelas Maret

Published : 2 Documents
Articles

Found 2 Documents
Search

PENGARUH PEMANFAATAN MEDIA INTERNET DAN PERPUSTAKAAN SEBAGAI SUMBER BELAJAR TERHADAP PRESTASI AKADEMIK MAHASISWA PROGRAM STUDI PENDIDIKAN EKONOMI UNIVERSITAS SEBELAS MARET SURAKARTA

BISE: Jurnal Pendidikan Bisnis dan Ekonomi Vol 1, No 2 (2015)
Publisher : Department of Economics Education, Universitas Sebelas Maret

Show Abstract | Original Source | Check in Google Scholar

Abstract

This research aims to determine: The Effect of utilization of Internet media to academic achievement student of program study economics education, The effect of the utilization of libraries to the academic achievement of students of program study economic education, Effect of utilization of Internet media and libraries together toward academic achievement of students of program study economic education. The method used in this research is quantitative method. Techniques used in this research were proportional stratified random sampling. The data analysis technique used in this study was multiple regression analysis.The results of research showed that There is a positive influence and significant partial between use of Internet media to academic achievement. There is positive influence and partially significant between use of the library to academic achievement. There is a significant relationship between internet media and libraries together toward academic achievement.

Shelf Life Prediction of Chocomix Instant Chocolate Beverage Powder Using Accelerated Shelf Life Testing (ASLT) based on Critical Moisture Content Approach

Reaktor Volume 18 No. 2 June 2018
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (769.398 KB)

Abstract

Chocomix chocolate beverage powder is one of the increased value-added cocoa products by Griya Cokelat Nglanggeran. The aimed of this study to estimate the shelf life using Accelerated Shelf Life Testing (ASLT) based on critical moisture content. Results showed that critical moisture content of Chocomix was 4.01 % (db). Moisture sorption isotherm (MSI) curve of Chocomix at 28oC was type II isothermic sigmoidal with 2 curves at the ranged of water activity between 0.24 and 0.68; and the equation was  y = 86.584X3 – 91.893X2 + 28.818X – 0.470. The calculation showed that estimated shelf life of Chocomix stored in 51.89 µm thick package at 28oC was 16.4 months.Keywords: chocolate powder, critical moisture content, moisture sorption isotherm, shelf life