Related Experiment Video
Updated: Sep 25, 2025

Medium Preparation for the Cultivation of Microorganisms under Strictly Anaerobic/Anoxic Conditions
Published on: August 15, 2019
Ambient ultraviolet radiation: A new factor affecting anaerobic fermentation of oat and subsequent methane emissions
Yixiao Xie1, Hong Sun2, Changbing Zhang3
1College of Animal Science, Guizhou University, Guiyang 550025, China; Key Laboratory of Animal Genetics, Breeding & Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China.
Abstract:
To investigate the effect of ambient ultraviolet (UV) radiation on the Qinghai-Tibetan Plateau on anaerobic fermentation and subsequent methane emissions, oats grown under different ambient UV conditions (UV1, 100% ambient UV radiation; UV2, 50% ambient UV radiation) were fermented with molasses and Lactobacillus plantarum (LP) inoculant treatments. The UV2 treatment increased (P < 0.05) epiphytic bacterial counts and reduced (P < 0.05) the water-soluble carbohydrate contents of oat. Both the UV2 treatment and the LP inoculant substantially increased the abundance of Lactobacillus and inhibited detrimental microorganisms (enterobacteria and yeasts) during anaerobic fermentation, resulting in the absence of butyric acid. The UV2 treatment increased (P < 0.05) the acid detergent fiber contents after anaerobic fermentation and indirectly increased (P < 0.05) methane emissions by 8.52-14.69% during in vitro ruminal digestion. This study demonstrated that low ambient UV radiation during cultivation facilitated anaerobic fermentation and consequently enhanced subsequent methane emissions from the rumen.
More Related Videos
09:38Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
07:34Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production
Published on: June 15, 2014
Related Concept Videos
Overview of Archaea
Oxygen Requirements and Growth Patterns
Metabolism of Chemolithotrophs
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...
Chemical Factors Affecting Respiration Centers
CO2 has a potent influence on respiration and is strictly regulated....
Environmental Applications of Microorganisms