Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Vol 12, No 4 (2023): December 2023

The Shelf-life, Microbiology Quality, and Characteristic Changes of Probiotic Lactobacillus plantarum Dad-13 Milk Jelly Candy during Storage

Rafli Zulfa Kamil (Department of Food Technology, Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Jl. Prof. Soedarto Tembalang Semarang 50275, Indonesia)
Fida Hasna Fadhila (Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No 1 Bulaksumur, Yogyakarta 55281, Indonesia)
Angela Dea (Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No 1 Bulaksumur, Yogyakarta 55281, Indonesia)
Endang Sutriswati Rahayu (Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No 1 Bulaksumur, Yogyakarta 55281, Indonesia)
Subekti Hartiningsih (Department of Agricultural Technology, Nahdlatul Ulama University, Yogyakarta, Jl. Lowanu No.47, Sorosutan, Kec. Umbulharjo, Kota Yogyakarta, Daerah Istimewa Yogyakarta 55162)



Article Info

Publish Date
02 Dec 2023

Abstract

Probiotics are live microorganisms that, when consumed in sufficient amounts, can provide health benefits to their host. L. plantarum Dad-13 milk jelly candies are non-fermented probiotic products. This study aims to evaluate the changes in the characteristics of probiotic milk jelly candies during storage and their microbiological quality. Characteristics such as pH, water activity (aw), hardness, chewiness, gumminess, brightness, and viability of lactic acid bacteria were analyzed over a period of 4 weeks at two temperatures, namely 4 and 30°C. Sub-lethal injury analysis was conducted to estimate the survival of probiotic cells during the jelly candy manufacturing process. Microbiological quality was assessed through Total Plate Count (TPC), Coliform, Escherichia coli, Salmonella, Mold, and Yeast analyses. The research results showed that the number of probiotic cells experiencing injury was less than 5%. Furthermore, changes in physical characteristics were observed during the 4-week storage period, but the temperature difference only affected pH and aw. The viability of lactic acid bacteria was more stable at a storage temperature of 4°C, and the microbiological quality met the jelly candy standards, except for TPC. Based on the research findings, milk jelly candies can be used as a carrier for probiotic cells as a non-fermented probiotic product innovation, with a recommended storage temperature of 4°C and best consumed within 47 days. Additionally, probiotic milk jelly candies are free from other microbial contamination. Keywords:   Jelly candy, L. plantarum Dad-13, Microbiological quality, Probiotic, Storage

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Journal Info

Abbrev

JTP

Publisher

Subject

Agriculture, Biological Sciences & Forestry Engineering

Description

Jurnal Teknik Pertanian Lampung or Journal of Agricultural Engineering (JTEP-L) is a peer-reviewed open-access journal. The journal invites scientists and engineers throughout the world to exchange and disseminate theoretical and practice-oriented researches in the whole aspect of Agricultural ...