Related Experiment Video
Updated: Feb 12, 2026

Preparation of High-Quality Fermented Fish Product
Published on: August 23, 2019
Effect of the clarification pH of sorghum juice on the composition of essential nutrients for fermentation
Marcos Antonio Durán1, Karina Dantur1, Roberto Marcelo Ruiz2
1Instituto de Tecnología Agroindustrial del NOA (ITANOA-CONICET).
Abstract:
The growing demand to replace fossil fuels with renewable alternatives has generated an urgent and imminent global need to find new non-fossil sources. Sweet sorghum is widely recognized as a highly promising biomass energy crop with the particular potential to complement sugarcane for ethanol production. Our aim in this study was to evaluate the influence of pH during the clarification process on the composition of essential nutrients in the sorghum juice and observe how this affects the efficiency of the ethanol fermentation process. We found that a higher pH directly affected residual concentrations of key nutrients (P, Ca, Zn and Mn) and consequently the efficiency of ethanol fermentation. In conclusion, we recommend a clarification procedure at pH 6-6.5 in order not to significantly affect nutritional parameters important for the yeast fermentation process.
More Related Videos
Related Concept Videos
Fermentation
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
Classifying Matter by Composition
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
Pancreatic Juice and Secretion
When acidic chyme from the stomach enters the duodenum, it triggers the release of secretin, a hormone that prompts pancreatic juice secretion. After a fatty meal, cholecystokinin, another hormone, stimulates gallbladder contraction and enhances enzyme-rich...
Absorption of Nutrients
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
Compounds Essential to Human Function
Inorganic Compounds Essential to Human Functioning
Inorganic compounds essential to human functioning include water, salts, acids, and bases. These compounds are inorganic, i.e., they do not have a carbon-hydrogen bond. Water...
Microbial Fermentation

