Effects of fermentation conditions on the physicochemical properties of plant-based yogurts

There is a growing demand for plant-based food alternatives in the industry with an increasing focus to simulate animal-based products. Plant-based yogurts have contributed significantly to this need, although there are several challenges that make it hard to imitate dairy yogurt s characteristics....

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Bibliographic Details
Main Author: Betancourt C., Michelle M.
Other Authors: Luna, Ligia
Format: Thesis
Language:Inglés
Published: Zamorano: Escuela Agrícola Panamericana 2025
Subjects:
Online Access:https://hdl.handle.net/11036/7853
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author Betancourt C., Michelle M.
author2 Luna, Ligia
author_browse Betancourt C., Michelle M.
Luna, Ligia
author_facet Luna, Ligia
Betancourt C., Michelle M.
author_sort Betancourt C., Michelle M.
collection Biblioteca Digital Zamorano
description There is a growing demand for plant-based food alternatives in the industry with an increasing focus to simulate animal-based products. Plant-based yogurts have contributed significantly to this need, although there are several challenges that make it hard to imitate dairy yogurt s characteristics. Understanding the impact of different fermentation conditions is crucial for comprehending the production of such alternative food. The aim of this work was to understand the effect of different temperatures (39 °C, 42 °C and 45 °C) along with different times of fermentation (8, 16, and 24 hours) in two plant-based milks (almond and soy) on the physicochemical characteristics of yogurt. They were all compared with a dairy yogurt that served as the control. The physicochemical analysis included parameters such as pH, viscosity (mPas*s), color (L*, a*, and b*), dissolved oxygen (mg/L), brix (°), water holding capacity (%), and acidity (g/100mL). The findings revealed that these conditions have a significant effect on the physicochemical properties of almond and soy-based yogurts. For soy yogurt, the best options are those fermented at 39 °C for 24 hours and 42 °C for 24 hours, with the first one being more energy efficient. For almond yogurt, the ideal pH is achieved with fermentation at 39 °C for 16 hours, 39 °C for 24 hours, and 42 °C for 24 hours. The almond yogurt did not achieve ideal values of viscosity; therefore, thickeners agents should be used.
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spelling ZAMORANO78532025-01-16T15:24:02Z Effects of fermentation conditions on the physicochemical properties of plant-based yogurts Betancourt C., Michelle M. Luna, Ligia Torrico, Damir almond soy temperature of fermentation time of fermentation There is a growing demand for plant-based food alternatives in the industry with an increasing focus to simulate animal-based products. Plant-based yogurts have contributed significantly to this need, although there are several challenges that make it hard to imitate dairy yogurt s characteristics. Understanding the impact of different fermentation conditions is crucial for comprehending the production of such alternative food. The aim of this work was to understand the effect of different temperatures (39 °C, 42 °C and 45 °C) along with different times of fermentation (8, 16, and 24 hours) in two plant-based milks (almond and soy) on the physicochemical characteristics of yogurt. They were all compared with a dairy yogurt that served as the control. The physicochemical analysis included parameters such as pH, viscosity (mPas*s), color (L*, a*, and b*), dissolved oxygen (mg/L), brix (°), water holding capacity (%), and acidity (g/100mL). The findings revealed that these conditions have a significant effect on the physicochemical properties of almond and soy-based yogurts. For soy yogurt, the best options are those fermented at 39 °C for 24 hours and 42 °C for 24 hours, with the first one being more energy efficient. For almond yogurt, the ideal pH is achieved with fermentation at 39 °C for 16 hours, 39 °C for 24 hours, and 42 °C for 24 hours. The almond yogurt did not achieve ideal values of viscosity; therefore, thickeners agents should be used. 2025-01-16T20:28:18Z 2025-01-16T20:28:18Z 2024 Thesis https://hdl.handle.net/11036/7853 eng Copyright Escuela Agrícola Panamericana, Zamorano https://creativecommons.org/licenses/by-nc-nd/3.0/es/ application/pdf Zamorano: Escuela Agrícola Panamericana
spellingShingle almond
soy
temperature of fermentation
time of fermentation
Betancourt C., Michelle M.
Effects of fermentation conditions on the physicochemical properties of plant-based yogurts
title Effects of fermentation conditions on the physicochemical properties of plant-based yogurts
title_full Effects of fermentation conditions on the physicochemical properties of plant-based yogurts
title_fullStr Effects of fermentation conditions on the physicochemical properties of plant-based yogurts
title_full_unstemmed Effects of fermentation conditions on the physicochemical properties of plant-based yogurts
title_short Effects of fermentation conditions on the physicochemical properties of plant-based yogurts
title_sort effects of fermentation conditions on the physicochemical properties of plant based yogurts
topic almond
soy
temperature of fermentation
time of fermentation
url https://hdl.handle.net/11036/7853
work_keys_str_mv AT betancourtcmichellem effectsoffermentationconditionsonthephysicochemicalpropertiesofplantbasedyogurts