Yeast Efficiency: yeast for agriculture
Yeast Efficiency is Agrauxine by Lesaffre's concept for developing innovative yeast-based biostimulant, biocontrol and bionutrition products.
It is based on our expertise in yeast-based products and the know-how associated with their production. This concept is part of a sustainable agriculture approach, responding to agronomic issues such as reducing the use of chemical inputs, maintaining soil quality and fertility, and implementing agroecological practices.
The 3 main objectives of Yeast Efficiency are :
- Securing ROI
- Increase agricultural productivity
- Optimizing the use of energy resources.
To meet these challenges, Agrauxine offers biosolutions based on the many properties of yeast.
Industrial strength
Yeast expertise
Yeast Efficiency in 4 key figures
4
yeast-based biocontrol products
6
yeast-based biostimulation products
2
yeast-based bionutrition products
6
production sites
What is yeast and what are its properties?
Yeast is a unicellular fungus just a few micrometers in size, naturally present in the environment and on living beings, capable of switching from respiration to fermentation.
Yeast is made up of many elements, such as proteins, amino acids, sugars and vitamins, all of which are beneficial to health.
Last but not least, yeasts are safe, non-toxic organisms, which is why they are used to ferment bread, alcohol and cheese. But they are also used to enhance the taste of beverages and foods, produce biofuels, or serve as probiotics for human, animal and plant health.
6 key facts about yeast
10000
years of yeast domestication
7000
BC: first traces of use in winemaking
20 000 000
yeast cells in 1g of fresh yeast
+2000
known yeast species
80
% of aromatic compounds in wine come from yeast
-2 to + 45
°C is the temperature range in which yeasts survive.
Yeast efficiency in agricultural biosolutions
In agriculture, yeast can be used in various forms known as derivatives. These derivatives are yeast extracts obtained by separating the cell wall and contents, yeast walls, or fermentation metabolites, naturally produced during fermentation.
Yeast can be found in all agricultural biosolutions:
- biostimulants,
- bionutrition solutions
- and biocontrol.
The effectiveness of yeast in biocontrol
Yeasts, like insects, plant extracts or semiochemicals, can be used to protect crops. Yeasts can be used either live, or using their cell walls. When used for biocontrol, yeasts have several path of actions:
- Fast growth and competition against disease
- Inhibition of disease development
- Induction of the plant's resistance system
Botrytis on strawberries: 80% less incidence than the control thanks to Julietta yeast-based product.
The effectiveness of yeast in biostimulation
Yeast, like seeweed, animal or plant extracts or humic acids, can be used as biostimulants. The forms used in biostimulation are yeast extracts and fermentation metabolites.
Their different biostimulation actions are :
- Resistance to abiotic stresses
- Improved fruit growth and ripening
- Increased root and leaf biomass
Fruit size increase: +18% for apples with our Moka yeast-based biostimulation products.
The effectiveness of yeast in bionutrition
Finally, yeast is an organism naturally present in the soil, and is capable of creating interactions that improve soil fertility and quality. In bionutrition, yeast can be either living or inactive. In this way, it serves several purposes in conditioning the rhizosphere:
- Stimulates the activity of soil organisms
- Increased nutrient availability
- Improving soil structure
+13% metabolic activity, +10% above-ground and below-ground biomass
Yeast-based biosolutions: unique, sustainable expertise
For over 170 years, Lesaffre has mastered the power of its yeasts and produced them all over the world. Today, Agrauxine invests in research to offer efficient products based on yeast or its derivatives, as part of a sustainable cycle:
- Yeast production begins with the selection of plant-based raw materials from sugar beet or sugar cane.
- Once the raw material has been selected, it is used as a fermentation medium for the production of yeast, yeast derivatives or fermentation products.
- The formulation used enables the creation of biostimulation, bionutrition and biocontrol solutions that can be applied to crops.
Discover our Podcast on the benefits of yeast in agriculture
Discover our yeast products
Biofungicide against botrytis on grapes, tomatoes, strawberries and moniliosis on stone fruit.
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