Potential of Goat Whey Added with Soy Milk as Alternative Growth Media for Lactobacillus plantarum

DOI

10.2991/absr.k.220309.069How to use a DOI?

Keywords

whey; soy milk; viability; liquid media; lactic acid

Abstract

A study on the potential of goat whey as a growth medium for lactic acid bacteria has been carried out at the Laboratory of Science and Technology of Milk Processing, Faculty of Agriculture, University of Syiah Kuala Banda Aceh, Indonesia. The purpose of this study was to examine the performance of goat whey as a growth medium after being added with soy milk, both as liquid and agar media to the growth of Lactobacillus plantarum. This study used a completely randomized design (CRD) consisting of 5 (five) treatments and 4 replications. The treatments given are goat milk whey as basal media (control); basal media+1.5% soy milk; basal media+3% soy milk; basal media + 4.5% soy milk and basal media + 6% soy milk, so 20 experimental units were obtained. Parameters measured were pH, protein content, lactic acid content and total plate count of Lactobacillus plantarum. Furthermore, the data obtained were analyzed using ANOVA (Analysis of Variance), and if there were differences between treatments, it would be followed by Duncan’s Multiple Range Test (DMRT). The results showed that the addition of soy milk had a significant effect (P<0.05) on protein content and a very significant effect (P<0.01) on pH values and lactic acid levels. Bacterial growth occurred was characterized by an acidic aroma on the petri dish because the colonies were countless due to the turbidity of the solid media after sterilization. The best alternative media was obtained from the addition of 4.5% soy milk with the results of pH, protein content, and lactic acid content respectively were 4.17, 2.83, and 0.59.

Copyright

© 2022 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article under the CC BY-NC license.

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TY  - CONF
AU  - Yurliasni Yurliasni
AU  - Zuraida Hanum
AU  - Lola Firtiana
AU  - Atikah Haura Sy
PY  - 2022
DA  - 2022/03/29
TI  - Potential of Goat Whey Added with Soy Milk as Alternative Growth Media for Lactobacillus plantarum
BT  - Proceedings of the International Conference on Improving Tropical Animal Production for Food Security (ITAPS 2021)
PB  - Atlantis Press
SP  - 356
EP  - 360
SN  - 2468-5747
UR  - https://doi.org/10.2991/absr.k.220309.069
DO  - 10.2991/absr.k.220309.069
ID  - Yurliasni2022
ER  -