“Fermentación de cacao (theobroma cacao l.) con adición de levadura (saccharomyces cerevisiae) y ENZIMA (PPO´S) en la disminución de metales pesados”.
This research was defined to know whether the addition of yeast (Saccharomyces cerevisiae) and enzyme (Polyphenol Oxidase) in the post-harvest stage would improve the sensory properties of cocoa and, in turn, its use would serve as a strategy to reduce cadmium Fermentation which was incorporated at...
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| Materialtyp: | bachelorThesis |
| Språk: | spa |
| Publicerad: |
2021
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| Ämnen: | |
| Länkar: | http://repositorio.uteq.edu.ec/handle/43000/6143 |
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Lägg till en tagg | Sammanfattning: | This research was defined to know whether the addition of yeast (Saccharomyces cerevisiae) and enzyme (Polyphenol Oxidase) in the post-harvest stage would improve the sensory properties of cocoa and, in turn, its use would serve as a strategy to reduce cadmium Fermentation which was incorporated at different levels in relation to weight (2kg per treatment), yeasts 0.5%(10g) and 1%(20g) and enzymes at 2%(40ml) and 2.5%(50ml), at the first twenty-four hours removals were performed during four days of fermentation, in order to reach the transformation in the cotyledon of cocoa almonds, improving physical, sensory conditions and decreased cadmium content in reference to Regulation 488/2014.The results from different variables applied in the research were analyzed with a two-factor DCA. As main factors the additions of yeast and enzyme, both for physical characteristics and sensory properties demonstrated variable behavior in the highest concentrations unlike witnesses. Since yeasts 1%(20g) and enzymes were applied at 2.5%(50ml). For physical analyses: pH, Brix, Temperature, Cutting Test (Seed Index, Testa and Cotyledon), Fermentation (fermented grains, violets and slap), the results from the applied analysis to know the cadmium content were favorable and significant as it was established, so the higher concentration better significance. A cost analysis was performed to determine prices between treatments. The lowest cost treatments were those of the interaction between the lowest level of yeast factor (0 and 0.5) corresponding to treatments from T1 - T4 (48.83) with enzyme levels and for other treatments (49.13) with a difference of 0.30 cents. Keywords: yeast (Saccharomyces cerevisiae), enzyme (Polyphenol Oxidases), costs, analysis, application, results, characteristics, cadmium. |
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