Olivian, Nauval Sebastian (2023) Formulation of Vegetable Tomato Extract Probiotic Drink with Lactobacillus bulgaricus and Streptococcus thermophilus Bacterial Culture. Diploma thesis, POLITEKNIK KESEHATAN TASIKMALAYA.
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Abstract
Probiotic drink is one of the fermented products known as functional food. The bacteria that is often used is a combination of Lactobacillus bulgaricus and Streptococcus thermophilus because they can work together to decompose carbohydrates into lactic acid. Vegetable tomatoes contain lycopene and carbohydrates, so they can be used as an alternative ingredient to make probiotic drinks. The purpose of this study was to make a probiotic drink formulation of vegetable tomato extract with Lactobacillus bulgaricus and Streptococcus thermophilus bacteria cultures. The research method used in this study is an experimental method with three formulas that have been modified from the research of Febriana and Wikandari (2022) using variations in the concentration of vegetable tomato extract of 25%, 50% and 75%. Data analysis was carried out by descriptive bacteria including organoleptic, hedonic, pH, viscosity, total lactic acid, total lactic acid, and coliform. Based on the results of the formulation carried out by adding vegetable tomato extract, it gave good results with the characteristics of each probiotic drink formulation using variations in vegetable tomato extract concentrations of 25%, 50%, and 75% with a pH value range covering 3.51-3.91, viscosity 37.4–44.8 cps, total lactic acid 0.58–0.67%, total lactic acid bacteria 2.53x107-3.89x107 CFU/mL, coliform with APM value <3. So that all the formulations made have met the requirements according to SNI 2981:2009. The formula most preferred by the panelists was F2 with a concentration of 50% vegetable tomato extract. The formulation of vegetable tomato juice probiotic drink can be seen from the results of organoleptic, hedonic, pH, viscosity, total lactic acid, total lactic acid bacteria, and coliform.
| Item Type: | Thesis (Diploma) |
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| Uncontrolled Keywords: | Lactobacillus bulgaricus, Probiotic drink, Streptococcus thermophilus, Vegetable tomato extract |
| Subjects: | Q Science > Q Science (General) Q Science > QR Microbiology R Medicine > RZ Other systems of medicine |
| Depositing User: | Nauval Sebastian O |
| Date Deposited: | 23 Jun 2023 06:00 |
| Last Modified: | 23 Jun 2023 06:00 |
| URI: | http://repo.poltekkestasikmalaya.ac.id/id/eprint/2085 |
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