Jurnal Multidisiplin Madani (MUDIMA)
Vol. 5 No. 6 (2025): June 2025

Quality of Marketed Yoghurt in Manado City

Friets S. Ratulangi (Sam Ratulangi University)
Wahidah Ma’ruf (Sam Ratulangi University)



Article Info

Publish Date
30 Jun 2025

Abstract

This study aims to determine the quality of yoghurt with various brands marketed in Manado City. The materials used were Ultra High Temperature (UHT) milk as much as 1 liter, skim milk 10%, sugar (sucrose) 6% and starters used are Streptococcus thermophillus and Lactobacillus bulgaricus, yogurt with various brands that have not expired from several supermarkets in Manado City. Other materials used for analysis are 70% alcohol, distilled water, MRS broth media, MRS Agar, peptone water, spritus, tomatoes, PDA (Potato Dectrose Agar). The tools used are autoclave, incubator, refrigerator, pH meter, erlenmeyer, test tube, thermometer, analytical balance, petri dish, aluminum foil, disposable, glass cup, pipette, refrigerator, oven, tissue, plastic, spritus lamp, cup, weighing bottle and blender. This study used a completely randomized design (CRD) consisting of 5 treatments and 4 replicates. Sampling locations as replicates and several brands of yogurt as treatments, namely: R1 = Commercial Yoghurt A; R¬2 = Commercial Yoghurt B; R3 = Commercial Yoghurt C; R4 = Commercial Yoghurt D; R5 = Commercial Yoghurt E. The variables observed were pH value, total solids, total amount of lactic acid bacteria and total amount of Yeast/Khamir. The results of the analysis of variance showed that the quality of yogurt with various brands marketed in Manado City in terms of total solids, total lactic acid bacteria and pH value showed very significant differences (P < 0.01). It is concluded that yoghurt with treatment R1 (Commercial Yoghurt A) is the best yoghurt, but yoghurt marketed in Manado City still has a quality that is suitable for consumption

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Journal Info

Abbrev

mudima

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering Social Sciences

Description

Journal Description Jurnal Multidisiplin Madani (MUDIMA) adalah adalah jurnal multidisiplin yang diterbitkan oleh Formosa Publisher. Jurnal Multidisiplin Madani (MUDIMA) terbit setiap bulan (monthly). Jurnal Multidisiplin Madani (MUDIMA)merupakan jurnal peer review, open access, dan ilmiah yang ...