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  1. Geosmin - Wikipedia

    Geosmin is a bicyclic alcohol with formula C 12 H 22 O, a derivative of decalin. It is produced from the universal sesquiterpene precursor farnesyl pyrophosphate (also known as farnesyl diphosphate), in a …

  2. What Is Geosmin? The Source of That Earthy Smell and Taste

    Geosmin is an organic compound responsible for the earthy scent often perceived after rain or soil disturbance. Its name, coined in 1965 by scientists Nancy N. Gerber and Hubert A. Lechevalier, …

  3. Geosmin: the smell of soil and rain - Joyful Microbe

    Oct 19, 2021 · Geosmin is the pleasant smell of soil and that earthy scent that comes with and after rain, and microbes produce it. Learn microbes make it and why?

  4. Geosmin - clovisca.gov

    What is geosmin and what causes it? Geosmin (pronounced " jee-OZ-min ") is a naturally occurring compound produced by a number of microorganisms found in soil and aquatic environments, …

  5. Petrichor and Geosmin - The Smell of Rain

    Jun 7, 2023 · Geosmin is a bicyclic alcohol produced by certain blue-green algae (cyanobacteria) and bacteria (mainly Actinomyces, such as Streptomyces). The compound has an earthy, musty, or …

  6. GEOSMIN Definition & Meaning - Merriam-Webster

    The scent is a blend of volatile plant oils and the organic compound geosmin, which is released from the soil into the air, along with ozone carried by downdrafts.

  7. The spring flows geosmin - microbewiki

    Conclusion Geosmin is a volatile compound that is produced by microbiomes such as cyanobacteria and streptomyces. The production of geosmin is regulated by environmental cues, such as nutrient …

  8. FAQs • What is Geosmin? - shreveportlawater.gov

    What is Geosmin? Geosmin is produced by several classes of microbes (including cyanobacteria, actinobacteria, and Streptomyces) and is released when these microbes die.

  9. Human odorant receptor for geosmin identified for the first time

    Aug 1, 2024 · Geosmin is a volatile compound of microbial origin with a distinct 'earthy' to 'musty' odor that can affect the quality of water and food.

  10. Why Does Geosmin Smell? | The Scientist

    Jan 18, 2025 · Geosmin is a terpene produced by bacteria (mainly Streptomyces) and fungi found in soils and bodies of fresh water. Geosmin and other terpenes, such as 2-methyl-isoborneol (2-MIB), …